A food processor that is easy to assemble

Abstract

The application discloses a food processor convenient to assemble, and belongs to the technical field of food processors, which comprises a main machine, a processing cup and a motor, the processing cup comprises a glass upper cup body, a metal lower cup body, a cup cover, a processing knife and a cup shell, the processing cup further comprises a cup holder arranged in the cup shell, a positioning and matching structure is arranged between the cup holder and the metal lower cup body, and a fixing and matching structure is arranged between the cup holder and the glass upper cup body, the cup holder and the metal lower cup body assembled together through the positioning and matching structure are fixed with the glass upper cup body through the fixing and matching structure to lock the metal lower cup body at the bottom of the glass upper cup body. The fixed assembly between the glass upper cup body and the metal lower cup body is realized through the cup holder, the assembly difficulty between the glass upper cup body and the metal lower cup body is lowered reasonably, and therefore the assembly efficiency of the processing cup is improved.

Description

Technical Field

[0001] This invention relates to the field of food processing machine technology, and in particular to a food processing machine that is easy to assemble. Background Technology

[0002] Existing food processing machines generally consist of a main unit and a processing cup. The main unit houses a motor, while the processing cup contains processing blades. The motor drives the blades to rotate, allowing them to cut and pulverize the materials inside the processing cup, thus achieving food processing. Conventional food processing machines typically use a combination of a glass body and a metal heating plate. However, since the metal heating plate can only heat the material at the bottom, it's prone to scorching. Therefore, some food processing machines have adopted a double-layered cup structure with an inner steel and outer plastic body. However, this structure makes it difficult for users to observe the processing progress of the materials inside the cup. Consequently, some food processing machines have adopted a structure with an upper glass cup and a lower metal cup, but this structure is more difficult to assemble, reducing assembly efficiency. Summary of the Invention

[0003] To address the shortcomings and deficiencies of the existing technology, this invention provides a food processing machine that is easy to assemble, effectively reducing the difficulty of assembling the upper glass cup and the lower metal cup.

[0004] To achieve the above-mentioned technical objectives, the present invention provides a food processing machine that is easy to assemble, comprising a main unit, a processing cup, and a motor. The processing cup includes a glass upper cup body, a metal lower cup body equipped with a heating tube, a cup lid, a processing blade driven by the motor, and a cup shell disposed on the circumferential exterior of the metal lower cup body. The processing cup also includes a cup holder disposed within the cup shell. A positioning fit structure is provided between the cup holder and the metal lower cup body, and a fixing fit structure is provided between the cup holder and the glass upper cup body. The cup holder and the metal lower cup body, assembled together by the positioning fit structure, are then fixed to the glass upper cup body by the fixing fit structure to lock the metal lower cup body to the bottom of the glass upper cup body.

[0005] Preferably, the lower part of the cup holder is located on the outer periphery of the top of the lower metal cup body, the upper part of the cup holder is located on the outer periphery of the bottom of the upper glass cup body, the positioning and fitting structure is located between the lower part of the cup holder and the top of the lower metal cup body, and the fixing and fitting structure is located between the upper part of the cup holder and the bottom of the upper glass cup body.

[0006] Preferably, the positioning and fitting structure includes an upper positioning protrusion and a lower positioning protrusion that cooperate with each other. The upper positioning protrusion is disposed on the outer wall surface of the lower metal cup body, and the lower positioning protrusion is disposed on the inner wall surface of the cup holder. The upper positioning protrusion and the lower positioning protrusion abut against each other to achieve axial positioning and fitting between the lower metal cup body and the cup holder.

[0007] Preferably, one of the upper positioning protrusion and the lower positioning protrusion is provided with a positioning protrusion, and the other is provided with a positioning groove for the positioning protrusion to be engaged. The engagement of the positioning protrusion and the positioning groove enables the lower metal cup body and the cup holder to achieve circumferential positioning.

[0008] Preferably, the inner wall of the cup holder is provided with a positioning protrusion located at the top of the lower positioning protrusion, and the positioning protrusion is located on the outer periphery of the upper positioning protrusion so that the lower metal cup body is aligned and positioned with the cup holder.

[0009] Preferably, a connecting screw is provided between the cup holder and the lower metal cup body, a connecting hole is provided on the lower positioning protrusion, and a screw hole is provided on the outer wall surface of the lower metal cup body, and the connecting screw is screwed into the connecting hole and the screw hole.

[0010] Preferably, the lower positioning protrusion is partially recessed to form a countersunk platform, and the connecting hole is located at the countersunk platform; and / or, the outer wall surface of the lower metal cup body is provided with a fixing platform located at the bottom of the upper positioning protrusion, and the screw hole is located at the fixing platform.

[0011] Preferably, the fixing structure includes a threaded rib on the outer wall of the bottom end of the glass cup body and a threaded groove on the inner wall of the cup holder, wherein the threaded rib is screwed into the threaded groove to fix the cup holder to the glass cup body.

[0012] Preferably, the inner wall surface of the cup holder is provided with a raised rib forming a threaded groove. The raised rib includes an arc-shaped segment extending circumferentially and a straight segment extending axially from one end of the arc-shaped segment. The arc-shaped segment abuts against the threaded rib from top to bottom.

[0013] Preferably, the height ratio of the upper glass cup to the lower metal cup is 0.5 to 2.

[0014] By adopting the above technical solution, the present invention has the following advantages: 1. The food processing machine provided by this invention includes a cup holder. A positioning and fitting structure is provided between the cup holder and the lower metal cup body, and a fixing and fitting structure is provided between the cup holder and the upper glass cup body. During assembly, the cup holder and the lower metal cup body are first assembled together using the positioning and fitting structure, and then the cup holder and the upper glass cup body are assembled together using the fixing and fitting structure, thereby locking the lower metal cup body to the bottom of the upper glass cup body. The cup holder enables the fixed assembly of the upper glass cup body and the lower metal cup body, which helps to reasonably reduce the assembly difficulty between the upper glass cup body and the lower metal cup body, thus improving the assembly efficiency of the processing cup.

[0015] 2. The positioning and fitting structure is located between the lower part of the cup holder and the top of the lower metal cup body, and the fixing and fitting structure is located between the upper part of the cup holder and the bottom of the upper glass cup body. The reasonable distribution of the positioning and fitting structures can meet the assembly requirements of locking the upper glass cup body and the lower metal cup body through the cup holder, and also help to reasonably control the axial dimensions of the cup holder.

[0016] 3. The upper positioning protrusion on the outer wall of the lower metal cup body abuts against the lower positioning protrusion on the inner wall of the cup holder, achieving axial positioning between the lower metal cup body and the cup holder. This prevents axial displacement of the lower metal cup body during the fixing of the cup holder and the upper glass cup body, thus improving assembly efficiency. The specific structure of the positioning fit should be rationally designed to meet the positioning fit assembly requirements between the lower metal cup body and the cup holder.

[0017] 4. The engagement of the positioning protrusion and the positioning groove enables circumferential positioning between the lower metal cup body and the cup holder, preventing circumferential rotation of the lower metal cup body when it is fixed to the upper glass cup body, thus improving assembly efficiency. The specific structure of the positioning fit is rationally designed to better meet the positioning and assembly requirements between the lower metal cup body and the cup holder.

[0018] 5. The connecting screws are screwed into the connecting holes and screw holes. The metal lower cup body and the cup holder are fixed and positioned by the connecting screws, which helps to improve the stability of the fit between the metal lower cup body and the cup holder, and also helps to improve the structural stability of the metal lower cup body and the glass upper cup body after assembly.

[0019] 6. The connecting hole is located at the recessed platform formed by the lower positioning protrusion, which helps to reasonably reduce the axial dimension of the cup holder, thereby helping to reasonably reduce the molding material cost of the cup holder. The screw hole is located at the fixing platform at the bottom of the upper positioning protrusion, which helps to reasonably reduce the wall thickness of the lower metal cup body, thereby helping to reasonably reduce the molding material cost of the lower metal cup body.

[0020] 7. The fixing structure between the cup holder and the upper glass body adopts a threaded rib and threaded groove structure. The threaded rib is tightened into the threaded groove to fix the cup holder and the upper glass body together. The specific structure of the fixing mechanism is reasonably designed to reduce the assembly difficulty between the cup holder and the upper glass body while ensuring the strength of the fixed connection. The threaded rib structure on the upper glass body is simple and easy to form.

[0021] 8. The threaded groove is formed by the interplay of the arc-shaped and straight segments of the raised rib. The simple structure of the threaded groove reduces the structural and molding difficulty of the cup holder. The arc-shaped segment abuts against the threaded rib, which axially positions the upper glass cup and the cup holder, improving the stability of the cup holder in locking the upper glass cup and the lower metal cup.

[0022] 9. Properly setting the height ratio between the upper glass cup and the lower metal cup is beneficial for improving the heating effect of the lower metal cup on the material. If the height ratio is less than 0.5, the upper glass cup is too short, making it difficult for users to effectively observe the material processing within the processing cup. If the height ratio is greater than 2, the lower metal cup is too short, hindering uniform heating of the material within the processing cup; the heated material tends to concentrate at the bottom, easily leading to scorching. Attached Figure Description

[0023] Figure 1 This is a complete machine drawing of the food processing machine in Example 1; Figure 2 This is a diagram showing the internal structure of the food processing machine in Example 1; Figure 3 This is an exploded view of the upper glass cup body, cup holder, sealing ring, and lower metal cup body in the food processing machine of Example 1; Figure 4 This is an exploded view of the metal lower cup body, cup base, and bottom cover in the food processing machine of Example 1. Figure 5 This is a structural diagram of the lower metal cup in the food processing machine of Example 1; Figure 6 This is a structural diagram of the cup holder in the food processing machine of Example 1; Figure 7 This is a structural diagram of the cup holder in the food processing machine of Example 1; Figure 8 This is a partial structural diagram of the food processing machine in Example 1; Figure 9 for Figure 8 Enlarged view of point D in the middle; Figure 10 This is a partial structural diagram of the sealing ring in the food processing machine of Example 2; Figure 11 This is a structural diagram of the lower metal cup body in the food processing machine of Example 3; Figure 12 This is a structural diagram of the cup holder in the food processing machine of Example 3.

[0024] In the diagram, 100-Main unit, 110-Positioning part, 120-Lower coupling connector, 200-Processing cup, 210-Upper glass cup body, 211-Threaded rib, 212-Transition step part, 220-Lower metal cup body, 221-Heating tube, 222-Upper positioning flange, 223-Positioning protrusion, 224-Positioning protrusion, 225-Mounting boss, 226-Fixing post, 2261-Step surface, 2262-Fixing hole, 227-Fixing platform, 228-Threaded hole, 230-Cup lid, 240-Processing tool, 241-Tool shaft, 242-Insert blade, 250-Sealing ring, 251-Main body, 252-Axial sealing part, 253-Circumferential sealing part, 254-Glue groove, 255-Annular sealing rib, 260-Cup shell, 2 70-Cup holder, 271-Lower positioning protrusion, 272-Threaded groove, 273-Rib, 273a-Arc segment, 273b-Straight segment, 274-Positioning groove, 275-Positioning protrusion, 276-Connecting hole, 277-Counterpart, 280-Cup seat, 281-Positioning hole, 282-Insertion hole, 283-Positioning boss, 284-Encircling ring, 290-Bottom cover, 291-Cavity, 292-Slot, 293-Mounting hole, 201-Shock absorber, 201a-Upper protrusion, 201b-Lower protrusion, 202-Fasting screw, 203-Upper washer, 204-Lower washer, 205-Positioning groove, 206-Elastic ring, 2061-Lip edge, 300-Motor, 410-Upper transmission joint, 420-Lower transmission joint. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., which indicate orientation or positional relationships, are based solely on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0026] Example 1 like Figures 1 to 9As shown, the first embodiment of the present invention provides a food processing machine with good sealing performance, including a main unit 100, a processing cup 200, and a motor 300. The processing cup 200 includes a glass upper cup body 210, a metal lower cup body 220 with a heating tube 221, a cup lid 230, a processing blade 240 driven by the motor 300, and a cup shell 260 disposed on the circumferential exterior of the metal lower cup body 220. The processing cup 200 also includes a cup holder 270 disposed within the cup shell 260. A positioning fit structure is provided between the cup holder 270 and the metal lower cup body 220, and a fixing fit structure is provided between the cup holder 270 and the glass upper cup body 210. The cup holder 270 and the metal lower cup body 220, assembled together by the positioning fit structure, are then fixed to the glass upper cup body 210 by the fixing fit structure to lock the metal lower cup body 220 to the bottom of the glass upper cup body 210.

[0027] Using a cup holder to fix the upper glass cup body and the lower metal cup body together helps to reasonably reduce the assembly difficulty between the upper glass cup body and the lower metal cup body, thereby improving the assembly efficiency of the processed cups.

[0028] In this embodiment, the machining tool 240 includes a tool shaft 241 and a cutting blade 242 disposed at the top of the tool shaft 241. The tool shaft 241 is axially and vertically rotatably mounted at the center of the bottom wall of the lower metal cup body 220 via a bearing assembly. An upper transmission joint 410 is sleeved on the bottom end of the tool shaft 241. The motor 300 is axially and vertically disposed inside the main unit 100. A lower transmission joint 420 is sleeved on the top end of the rotating shaft of the motor 300. The upper transmission joint 410 and the lower transmission joint 420 are detachably coupled. When the motor 300 is working, the rotating shaft drives the machining tool 240 to rotate through the upper transmission joint 410 and the lower transmission joint 420.

[0029] The upper glass cup body 210 is preferably made of tubular glass, and the lower metal cup body 220 is preferably made of cast metal. The height ratio of the upper glass cup body 210 to the lower metal cup body 220 is 0.5 to 2. In this embodiment, the height ratio of the upper glass cup body 210 to the lower metal cup body 220 is set to 1.5. The heating tube 221 is fixed in the casting mold as an insert during the casting of the lower metal cup body 220. After the lower metal cup body 220 is cast, the heating tube 221 is fixed inside the lower metal cup body 220.

[0030] Combination Figure 2 , Figure 3 , Figure 5 , Figure 6 The cup holder 270 is fitted onto the outside of the lower metal cup body 220, with the lower part of the cup holder 270 engaging with the top of the lower metal cup body 220. Therefore, a positioning and fitting structure is located between the lower part of the cup holder 270 and the top of the lower metal cup body 220. The upper part of the cup holder 270 is fitted onto the outer periphery of the bottom end of the upper glass cup body 210. Therefore, a fixing and fitting structure is located between the upper part of the cup holder 270 and the bottom end of the upper glass cup body 210.

[0031] Specifically, the positioning and mating structure includes an upper positioning protrusion 222 and a lower positioning protrusion 271 that cooperate with each other. The upper positioning protrusion 222 and the lower positioning protrusion 271 abut against each other to achieve axial positioning and mating between the lower metal cup body 220 and the cup holder 270. The upper positioning protrusion 222 is located on the outer periphery of the top side of the lower metal cup body 220 and has a ring. The lower positioning protrusion 271 is located on the bottom side of the inner wall of the cup holder 270 and protrudes towards the center of the cup holder to form a ring. The sealing ring 250 is sleeved on the top side of the lower metal cup body 220 and is located above the upper positioning protrusion 222. The main body 251 of the sealing ring 250 is clamped between the cup holder 270 and the lower metal cup body 220, which helps to improve the structural stability of the sealing ring 250, thereby improving the sealing and mating effect between the upper and lower metal cup bodies.

[0032] To improve the stability of the positioning fit between the cup holder 270 and the lower metal cup body 220 and to ensure effective alignment during assembly, the upper positioning flange 222 is provided with a downwardly protruding positioning protrusion 223, and the lower positioning flange 271 is provided with a positioning groove 274 that mates with the positioning protrusion 223. Additionally, the inner wall of the cup holder 270 is provided with a positioning protrusion 275 located at the top of the lower positioning flange 271. During assembly, the positioning protrusion 223 is embedded in the positioning groove 274 to achieve circumferential positioning between the lower metal cup body 220 and the cup holder 270, while the positioning protrusion 275, located on the outer periphery of the upper positioning flange 222, ensures the lower metal cup body 220 and the cup holder 270 are aligned and positioned.

[0033] Combination Figure 3 , Figure 6 In this embodiment, the fixed fitting structure includes a threaded rib 211 disposed on the outer wall of the bottom end of the glass cup body 210 and a threaded groove 272 disposed on the inner wall surface of the cup holder 270. The inner wall surface of the cup holder 270 is provided with a raised rib 273 forming the threaded groove 272, and multiple raised ribs 273 are spaced apart along the circumference of the cup holder 270. The raised rib 273 includes an arc-shaped segment 273a extending circumferentially along the cup holder 270 and a straight segment 273b extending axially from one end of the arc-shaped segment 273a. The arc-shaped segment 273a and the straight segment 273b cooperate to form a threaded groove 272 that opens at one end in an arc.

[0034] The processing cup 200 also includes a sealing ring 250 that seals the lower metal cup body 220 with the upper glass cup body 210. The sealing ring 250 includes an integrally formed main body 251, an axial sealing part 252, and a circumferential sealing part 253. The main body 251 is fitted onto the outer periphery of the top side of the lower metal cup body 220. The axial sealing part 252 is clamped between the top surface of the lower metal cup body 220 and the bottom surface of the upper glass cup body 210. The circumferential sealing part 253 is sealed against the wall surface at the bottom end of the upper glass cup body 210. The axial sealing part and the circumferential sealing part provide a double seal between the upper glass cup body and the lower metal cup body, effectively improving the sealing effect between the upper glass cup body and the lower metal cup body, thereby improving the cup body sealing performance of the processing cup.

[0035] Combination Figure 2 Enlarged view of point A in the middle and Figure 3 In the enlarged view at point C, in this embodiment, the circumferential sealing portion 253 is disposed on the outer periphery of the axial sealing portion 252, and the circumferential sealing portion 253 is sealed and fitted to the outer wall surface of the bottom end of the upper glass cup body 210. Specifically, the axial sealing portion 252 extends from the inner ring of the main body portion 251 toward the center of the sealing ring 250, and the circumferential sealing portion 253 extends upward from the outer ring of the main body portion 251. The circumferential sealing portion 253 and the axial sealing portion 252 are spaced apart by a certain width. The main body portion 251, the circumferential sealing portion 253 and the axial sealing portion 252 are combined to form a recessed glue groove 254, which is used to fill the sealant. The glue groove 254 is set below the bottom surface of the upper glass cup body 210. The sealant is used to achieve a second axial sealing fit between the upper glass cup body 210 and the lower metal cup body 220, further strengthening the axial sealing fit effect between the upper glass cup body 210 and the lower metal cup body 220.

[0036] The glue groove 254 is preferably wider at the top and narrower at the bottom. In order to better meet the axial sealing requirements between the upper and lower metal cup bodies 210 and 220 through the sealant, the specific width of the glue groove 254 needs to be reasonably set, which is 2mm to 4mm. In this embodiment, the width W1 of the bottom side of the glue groove 254 is set to 2mm, and the width W2 of the top side of the glue groove 254 is set to 4mm.

[0037] Combination Figure 4 , Figure 7 , Figure 8 , Figure 9 The processing cup 200 also includes a cup holder 280 fixed to the bottom of the lower metal cup body 220 and a bottom cover 290 fixed to the bottom of the cup holder 280. A centering and positioning structure located on the outer periphery of the processing tool 240 and a fixing connection structure for fixing the two are provided between the lower metal cup body 220 and the cup holder 280. The centering and positioning structure is located in the central area of ​​the cup holder 280 and the lower metal cup body 220, and the fixing connection structure is located on the outer periphery of the centering and positioning structure.

[0038] Combination Figure 5 , Figure 7 The centering and positioning structure includes a positioning protrusion 224 extending downward from the lower metal cup body 220 and a positioning hole 281 located at the center of the cup holder 280. The positioning protrusion 224 is inserted into the positioning hole 281, enabling centering and positioning between the lower metal cup body 220 and the cup holder 280 during assembly. Figure 8 In this embodiment, a mounting boss 225 for mounting a machining tool 240 is provided at the center of the bottom wall of the lower metal cup body 220, and a centering positioning structure is provided at the bottom of the mounting boss 225. Specifically, a positioning protrusion 224 extends downward from the bottom end of the mounting boss 225.

[0039] Combination Figure 5 , Figure 7 , Figure 9 The fixed connection structure includes a fixing post 226 protruding downward from the bottom wall of the lower metal cup body 220, an insertion hole 282 on the cup seat 280, and fasteners for locking the cup seat 280 and the fixing post 226. The fixing post 226 is inserted into the insertion hole 282, and the fasteners lock the cup seat 280 and the fixing post 226 together. In this embodiment, in order to reduce the vibration transmission intensity between the cup seat 280 and the lower metal cup body 220, a shock absorber 201 is provided at the fixed connection structure. Specifically, the shock absorber 201 is located between the fixing post 226 and the insertion hole 282.

[0040] Combination Figure 9 The fastener is preferably a fastening screw 202. The outer diameter of the fixing post 226 is thicker at the top and thinner at the bottom, forming a stepped surface 2261. The fixing post 226 has a fixing hole 2262 extending upward from the bottom surface and cooperating with the fastening screw 202. The fixing screw passes through the cup seat 280 and is tightened in the fixing hole 2262 to lock the cup seat 280 and the lower metal cup body 220. The shock absorber 201 is sleeved on the outside of the fixing post 226 and located below the stepped surface 2261. The shock absorber 201 is also inserted into the insertion hole 282. The upper end of the shock absorber 201 has an outwardly extending upper convex ring 201a located between the top surface of the cup seat 280 and the stepped surface 2261, and the lower end of the shock absorber 201 has an outwardly extending lower convex ring 201b located on the bottom surface of the cup seat 280. To increase the effective contact area between the shock absorber 201 and the lower metal cup 220, an upper washer 203 is provided on the top of the shock absorber 201. The upper washer 203 is sleeved on the outside of the fixing post 226 and located between the top surface of the shock absorber 201 and the step surface 2261. A lower washer 204 is provided at the bottom of the shock absorber 201. The fastening screw 202 passes through the lower washer 204 and presses the lower washer 204 tightly against the bottom surface of the shock absorber 201.

[0041] Combination Figure 8The cup holder 280 has a ring 284 extending upwards around its outer edge and located around the metal lower cup body 220. Preferably, the top surface of the ring 284 is higher than the heating element 221, and there is a certain distance between the top surface of the ring 284 and the bottom surface of the cup holder 270. The ring 284 reduces the heat transferred from the metal lower cup body 220 to the cup shell 260, thus avoiding the risk of burns to the user from the cup shell 260.

[0042] The bottom cover 290 is fixed to the cup holder 280 by screws. A cavity 291 is provided in the center of the bottom cover 290, and the upper drive connector 410 is located in the cavity 291 to facilitate the transmission engagement between the upper drive connector 410 and the lower drive connector 420. Figure 1 The top surface of the main unit 100 is provided with an upwardly protruding and arc-shaped positioning part 120, which is located on the outer periphery of the lower transmission joint 420. The cup holder 280 is sleeved on the outside of the metal lower cup body 220, cup holder 270, cup holder 280 and bottom cover 290. A positioning groove 205 is formed between the bottom cover 290 and the cup holder 280 for the positioning part 120 to be inserted. The bottom cover 290 has a slot 292 communicating with the positioning groove 205 on the inner wall of the positioning groove 205. The cup holder 280 has a positioning boss 283 protruding from the slot 292 onto the inner wall of the positioning groove 205. When the processing cup 200 is installed on the main unit 100, the positioning part 120 is inserted into the positioning groove 205. The positioning part 120 abuts against the positioning boss 283 to achieve radial positioning between the processing cup 200 and the main unit 100. This helps to improve the concentricity between the upper transmission joint 410 and the lower transmission joint 420, thereby helping to reduce the operating noise of the whole machine. In this embodiment, the positioning boss 283 and the insertion hole 282 are arranged in a one-to-one correspondence, and the positioning boss 283 is located on the outer side of the corresponding insertion hole 282 facing away from the center of the cup seat.

[0043] Combination Figure 2 To prevent liquid from flowing downwards along the outer wall of the processing cup 200 into its interior, an elastic ring 206 is provided between the cup shell 260, the cup holder 270, and the upper glass cup body 210 to ensure a tight seal at their joints. Specifically, the bottom end of the upper glass cup body 210 has a transition step 212. The lower part of the elastic ring 206 is clamped between the top side of the cup holder 270 and the top side of the cup shell 260. The upper part of the elastic ring 206 is attached to the outer wall surface of the transition step 212. A protruding lip 2061 is provided on the inner wall surface of the upper part of the elastic ring 206, and the lip 2061 is clamped between the top side of the cup holder 270 and the upper glass cup body 210. The elastic ring 206 ensures a sealed fit between the cup holder 270 and the upper glass cup 210, between the cup shell 260 and the upper glass cup 210, and between the top side of the cup holder 270 and the top side of the cup shell 260, preventing liquid from flowing into the cup shell 260 or the cup holder 270 from the joints of these three parts.

[0044] A coupling structure for electrical connection is provided between the main unit 100 and the processing cup 200. The coupling structure includes a lower coupling connector 120 located at the top of the main unit 100 and an upper coupling connector located at the bottom of the processing cup 200. The upper coupling connector is located between the cup base 280 and the bottom cover 290. The bottom cover 290 is provided with a mounting hole 293 for installing the upper coupling connector. Electrical components such as the heating tube 221 on the processing cup 200 are electrically connected to the upper coupling connector.

[0045] During assembly, the sealing ring 250 can be first fitted onto the top side of the lower metal cup body 220, and appropriate sealant can be filled into the glue groove 254. Then, the cup holder 270 and the lower metal cup body 220 are fitted together using a positioning and fitting structure, so that the upper positioning protrusion 222 and the lower positioning protrusion 271 abut against each other, the positioning protrusion 223 is embedded in the positioning groove 274, and the positioning protrusion 275 is located on the outer periphery of the upper positioning protrusion 222. Next, the cup holder 270 and the upper glass cup body 210 are fixed together using a fixing and fitting structure, and the threaded rib 211 is tightened into the threaded groove 272 to lock the cup holder 270 and the upper glass cup body 210 together, with the arc-shaped section 273a of the rib abutting against the threaded rib 211. After the upper and lower metal cup bodies are fixed, the axial sealing part 252 of the sealing ring 250 is clamped between the top surface of the lower metal cup body 220 and the bottom surface of the upper glass cup body 210, the circumferential sealing part 253 is attached to the outer wall surface of the bottom end of the upper glass cup body 210, and the main body 251 is clamped between the lower metal cup body 220 and the cup holder 270. Then, the cup holder 280 and the lower metal cup body 220 are first positioned and engaged by the centering and positioning structure, and the cup holder 280 and the lower metal cup body 220 are fixed by the fastening screws 202. Then, the cup shell 260 is sleeved on the outside of the cup holder 270 and the cup holder 280. Finally, the bottom cover 280 is installed in the cup shell 260 and fixed to the cup holder 280 by screws. The inner wall of the cup shell 260 is provided with a positioning block with shock-absorbing pads, and the bottom cover 280 abuts against the bottom of the positioning block to make the cup shell 260 axially positioned.

[0046] It is understandable that a feeding port can be added to the cup lid 230. In this case, the processing cup 200 also includes a feeding cover for opening and closing the feeding port, and the feeding cover can be detachably inserted into the feeding port.

[0047] It is understandable that the glass cup body 210 can also be made of injection-molded glass.

[0048] It is understood that the lower metal cup body 220 is preferably made of aluminum alloy, and the inner wall of the lower metal cup body 220 is provided with an anti-stick coating. Of course, the lower metal cup body 220 can also be made of other suitable metal materials.

[0049] It is understandable that the height ratio of the upper glass cup 210 to the lower metal cup 220 can also be set to other reasonable ratios such as 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.6, 1.7, 1.8, 1.9, 2, etc.

[0050] Understandably, the width of the glue groove 254 can also be set to be consistent vertically.

[0051] Understandably, the width of the glue groove 254 can also be set to other reasonable sizes such as 2.2mm, 2.5mm, 2.7mm, 3mm, 3.5mm, 4mm, etc.

[0052] It is understandable that the positions of the positioning protrusion 223 and the positioning groove 274 can be interchanged, that is, the lower positioning protrusion 271 is provided with an upward protruding positioning protrusion, and the upper positioning protrusion 222 is provided with a positioning groove for the positioning protrusion to be inserted.

[0053] It is understandable that several annular sealing ribs distributed at intervals between the upper and lower parts can be provided on the inner wall surface of the circumferential sealing part 253.

[0054] Understandably, if the contact area between the top surface of the damping component 201 and the step surface 2261 meets the structural requirements, the upper shim 203 can be omitted.

[0055] Understandably, the lower washer 204 can also be removed, in which case the head of the fastening screw 202 directly contacts the bottom surface of the cup holder 280.

[0056] It is understandable that the top surface of the ring 284 can be flush with the heating tube 221, or it can be lower than the heating tube 221.

[0057] Understandably, the setting for the 275-point positioning bump can also be canceled.

[0058] It is understood that the specific structure of the sealing ring 250 is not limited to that described above and shown in the attached figures, and existing sealing rings may also be used.

[0059] It is understandable that the specific assembly sequence of the processing cup 200 is not limited to the above description.

[0060] Example 2 Combination Figure 10 In this embodiment, the glue groove 254 is omitted. The top surface of the axial sealing part 252 and the inner wall surface of the circumferential sealing part 253 are provided with annular sealing ribs 255. Multiple annular sealing ribs are provided on the top surface of the axial sealing part 252 at intervals in the radial direction, and multiple annular sealing ribs are provided on the inner wall surface of the circumferential sealing part 253 at intervals in the vertical direction.

[0061] The other structures of Embodiment 2 are the same as those of Embodiment 1, and will not be described in detail here.

[0062] It is understandable that annular sealing ribs 255 may also be provided only on the top surface of the axial sealing part 252.

[0063] It is understandable that annular sealing ribs 255 may also be provided only on the inner wall surface of the circumferential sealing part 253.

[0064] Example 3 Combination Figure 11 , Figure 12 In this embodiment, to improve the connection strength between the cup holder 270 and the lower metal cup body 220, a connecting screw is provided between the cup holder 270 and the lower metal cup body 220. A connecting hole 276 is provided at the lower positioning protrusion 271, and a screw hole 228 is provided on the outer wall surface of the lower metal cup body 220. The connecting screw is screwed into the connecting hole 276 and the screw hole 228. Specifically, a fixing platform 227 is provided on the outer wall surface of the lower metal cup body 220 at the bottom of the upper positioning protrusion 222, and a screw hole 228 is provided at the fixing platform 227 to cooperate with the connecting screw. The lower positioning protrusion 271 and the fixing platform 227 are partially recessed to form a recessed platform 277, and the connecting hole 276 is provided at the recessed platform 277. When the lower metal cup body 220 and the cup holder 270 are assembled together through a positioning and fitting structure, the fixing platform 337 is embedded in the recessed platform 277 so that the screw hole 228 corresponds to the connecting hole 276. Then, the connecting screw is screwed into the connecting hole 276 and the screw hole 228 to fix the lower metal cup body 220 and the cup holder 270 together.

[0065] The other structures in Embodiment 3 are the same as those in Embodiment 1, and will not be described in detail here.

[0066] Understandably, the countersunk platform 277 can be removed, and the connecting hole 276 can be directly set on the lower positioning protrusion 271.

[0067] It is understandable that if the thickness of the upper positioning protrusion 222 is large, the screw hole 228 can also be directly set on the upper positioning protrusion 222.

[0068] Understandably, the positioning protrusion 223 and the positioning groove 274 can be removed.

[0069] It is understood that Embodiment 3 can be combined with Embodiment 2.

[0070] In addition to the preferred embodiments described above, the present invention may have other embodiments. Those skilled in the art can make various changes and modifications based on the present invention, and all such changes and modifications should fall within the scope defined in the claims of the present invention, as long as they do not depart from the spirit of the present invention.

Claims

1. A food processing machine that is easy to assemble, comprising a main unit, a processing cup, and a motor, wherein the processing cup comprises a glass upper cup body, a metal lower cup body equipped with a heating element, a cup lid, a processing blade driven by the motor, and a cup shell disposed on the circumferential outer side of the metal lower cup body, characterized in that, The processing cup also includes a cup holder disposed within the cup shell. A positioning and fitting structure is provided between the cup holder and the lower metal cup body, and a fixing and fitting structure is provided between the cup holder and the upper glass cup body. The cup holder and the lower metal cup body, assembled together by the positioning and fitting structure, are then fixed to the upper glass cup body by the fixing and fitting structure to lock the lower metal cup body to the bottom of the upper glass cup body. The processing cup also includes a sealing ring, which is simultaneously clamped between the cup holder and the lower metal cup body, and between the lower metal cup body and the upper glass cup body.

2. The food processing machine with easy assembly according to claim 1, characterized in that, The lower part of the cup holder is located on the outer periphery of the top of the lower metal cup body, and the upper part of the cup holder is located on the outer periphery of the bottom of the upper glass cup body. The positioning and fitting structure is located between the lower part of the cup holder and the top of the lower metal cup body, and the fixing and fitting structure is located between the upper part of the cup holder and the bottom of the upper glass cup body.

3. The food processing machine with easy assembly according to claim 2, characterized in that, The positioning and fitting structure includes an upper positioning protrusion and a lower positioning protrusion that cooperate with each other. The upper positioning protrusion is located on the outer wall surface of the lower metal cup body, and the lower positioning protrusion is located on the inner wall surface of the cup holder. The upper positioning protrusion and the lower positioning protrusion abut against each other to achieve axial positioning and fitting between the lower metal cup body and the cup holder.

4. The food processing machine with easy assembly according to claim 3, characterized in that, One of the upper positioning protrusion and the lower positioning protrusion is provided with a positioning protrusion, and the other is provided with a positioning groove into which the positioning protrusion is engaged. The engagement of the positioning protrusion and the positioning groove enables the lower metal cup body and the cup holder to achieve circumferential positioning.

5. A food processing machine that is easy to assemble according to claim 3, characterized in that, The inner wall of the cup holder is provided with a positioning protrusion located at the top of the lower positioning protrusion. The positioning protrusion is located on the outer periphery of the upper positioning protrusion, so that the lower metal cup body is aligned and positioned with the cup holder.

6. The food processing machine with easy assembly according to claim 3, characterized in that, A connecting screw is provided between the cup holder and the lower metal cup body. A connecting hole is provided on the lower positioning protrusion. A screw hole is provided on the outer wall surface of the lower metal cup body. The connecting screw is screwed into the connecting hole and the screw hole.

7. A food processing machine that is easy to assemble according to claim 6, characterized in that, The lower positioning protrusion is partially recessed to form a countersunk platform, and the connecting hole is located at the countersunk platform; and / or, the outer wall surface of the lower metal cup body is provided with a fixing platform located at the bottom of the upper positioning protrusion, and the screw hole is located at the fixing platform.

8. The food processing machine with easy assembly according to claim 1, characterized in that, The fixed fitting structure includes a threaded rib on the outer wall of the bottom end of the glass cup body and a threaded groove on the inner wall of the cup holder. The threaded rib is screwed into the threaded groove to fix the cup holder to the glass cup body.

9. A food processing machine that is easy to assemble according to claim 8, characterized in that, The inner wall of the cup holder is provided with a raised rib forming a threaded groove. The raised rib includes an arc-shaped segment extending circumferentially and a straight segment extending axially from one end of the arc-shaped segment. The arc-shaped segment abuts against the threaded rib from top to bottom.

10. A food processing machine that is easy to assemble according to claim 1, characterized in that, The height ratio of the upper glass cup to the lower metal cup is 0.5 to 2.

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