Meat grinder convenient to assemble

Abstract

The invention belongs to the technical field of meat mincing equipment, and particularly relates to a convenient-to-assemble meat mincer which comprises a box body, a connecting pipe is arranged on one side of the box body, a meat mincing mechanism is arranged between the connecting pipe and the box body, and a die changing mechanism is arranged at one end of the connecting pipe. According to the meat grinder, through the arrangement of a boss-groove matching structure of the first clamping part and the second clamping part, rapid separation and assembly of a power connecting part between the motor and the roller shaft are achieved, disassembly can be completed without the help of tools, the time consumed by single-time disassembly and assembly is greatly shortened, and the equipment maintenance efficiency is remarkably improved; the requirements of frequent cleaning and part replacement in the food processing industry are met; by arranging the die changing mechanism, when the tool bit needs to be replaced, an operator manually lifts a limiting pipe and a compression spring I upwards, so that the limiting pipe is separated from the limiting position of the tool bit, and the tool bit can be easily taken down.

Description

Technical Field

[0001] This invention relates to the field of meat grinding equipment technology, and more particularly to a meat grinder that is easy to assemble. Background Technology

[0002] Meat grinders are commonly used equipment in the food processing industry and are widely used in home kitchens, restaurant kitchens, and small and medium-sized meat processing scenarios.

[0003] Traditional meat grinders typically use bolted connections, interference fits, or multi-stage snap-fit ​​fasteners for their core functional modules (such as the motor, grinding blade assembly, and feed pipe). Disassembly and assembly require tools like screwdrivers and wrenches, and the process is cumbersome. For example, the power transmission components of the grinding mechanism (motor and rollers) are usually rigidly connected via keyways or threads. Each disassembly is time-consuming, and repeated disassembly and assembly can lead to component wear and a decrease in power transmission accuracy. For high-frequency usage scenarios (such as daily cleaning needs in restaurant kitchens), the cumbersome disassembly and assembly process significantly increases equipment downtime and reduces production efficiency.

[0004] In particular, most existing meat grinders are fixed integrated structures, with core functional components (such as motors, grinding chambers, and feed pipes) rigidly connected as a whole by welding, injection molding, or bolts. They lack detachable modular designs, resulting in bulky size and extremely low utilization of transportation space. Precision components lack independent protection, leading to a high damage rate.

[0005] To address the above problems, this invention proposes a meat grinder that is easy to assemble. Summary of the Invention

[0006] In view of the existing problems of large space occupation, complicated component disassembly and assembly, and low maintenance efficiency of meat grinders, this invention proposes a meat grinder that is easy to assemble.

[0007] This invention proposes an easy-to-assemble meat grinder, comprising a housing, a connecting pipe on one side of the housing, a meat grinding mechanism between the connecting pipe and the housing, a mold changing mechanism at one end of the connecting pipe, a feed inlet at the upper end of the connecting pipe, an auxiliary pipe fixedly connected to the inner wall of the feed inlet, a fixing mechanism at the upper end of the auxiliary pipe, a feed pipe fixedly engaged inside the fixing mechanism, a placement tray at the upper end of the feed pipe, a support rod on the outer side of the connecting pipe, and a rotatable connection between the lower end of the support rod and the side of the housing.

[0008] Preferably, the meat grinding mechanism includes a motor, an auxiliary disk is fixedly connected to one end of the motor's output shaft, a snap-fit ​​component one is fixedly connected to one side of the auxiliary disk, a snap-fit ​​component two is snapped together on one side of the snap-fit ​​component one, a bearing one is provided on one side of the snap-fit ​​component two, the outer ring of the bearing one is embedded in the side of the connecting pipe, a roller is fixedly connected to one side of the inner ring of the bearing one, a bearing two is sleeved around the auxiliary disk, the outer ring of the bearing two is fixedly connected to the body of the housing, a threaded ring is fixedly connected to one side of the outer ring of the bearing two, a nut is threadedly connected to the surface of the threaded ring, a bearing three is provided on one side of the nut, one side of the inner ring of the bearing three is fixedly connected to the side of the connecting pipe, and the outer ring of the bearing three is fixedly connected to one side of the nut.

[0009] Preferably, the mold changing mechanism includes a limiting ring, the inner wall of which is fixedly sleeved with the outer surface of the connecting tube, a spring slidably sleeved on the outer surface of the connecting tube, one end of the spring being fixedly connected to one end of the limiting ring, the other end of the spring being fixedly connected to a limiting tube, a cutter head slidably sleeved on one end of the connecting tube, the body of the cutter head having a groove, a limiting post slidably connected to the inner wall of the groove, a limiting groove adapted to the lower end of the limiting post having a surface of the connecting tube, a limiting block being provided on the surface of the limiting post, and the surface of the limiting block being slidably connected to the inner wall of the groove.

[0010] Preferably, the inner diameter of the limiting tube is equal to the outer diameter of the limiting ring, and the maximum outer diameter of the cutting head is equal to the outer diameter of the limiting ring.

[0011] Preferably, the fixing mechanism includes a sleeve with a through hole in the middle of the sleeve body. A locking device is rotatably connected inside the through hole. An annular groove is formed inside the sleeve. A rotating ring is provided in the upper half of the annular groove. The upper end of the rotating ring is set with an inclined toothed surface. A rotating disk is fixedly connected to the lower end of the rotating ring. An arc-shaped groove is arrayed on the surface of the rotating disk. A fixing plate is provided below the rotating disk. A limiting plate adapted to the arc-shaped groove is arrayed between the fixing plate and the rotating disk. A column that slides against the inner wall of the arc-shaped groove is provided on the upper surface of the limiting plate. A rectangular groove adapted to the limiting plate is formed on the upper surface of the fixing plate. A rectangular block adapted to the rectangular groove is provided on the lower surface of the limiting plate. The fixing plate and the rotating disk are both located in the lower half of the annular groove.

[0012] Preferably, the locking device includes a rotating rod, the rod body of which is rotatably connected to the inner wall of the through hole via a bearing. The rod body of the rotating rod has slots arranged in an array. The inner wall of the through hole has symmetrically arranged placement grooves. A second spring is arranged in the placement groove. One end of the second spring is fixedly connected to the inner wall of the placement groove. The other end of the second spring is fixedly connected to a locking block. One side of the locking block has a protrusion that matches the slot. One end of the rotating rod is fixedly connected to a helical gear. The surface of the helical gear meshes with the toothed surface of the upper surface of the rotating ring.

[0013] Preferably, the lower end of the box body has a cavity.

[0014] Preferably, the outer surface of the auxiliary tube is symmetrically provided with spiral grooves, and a magnetic absorbing plate is provided under the inner bottom wall of the spiral groove. A slider adapted to the spiral groove is symmetrically provided at the lower inner wall of the sleeve, and a magnetic absorbing plate is provided at the bottom of the slider.

[0015] Preferably, the upper end of the support rod is adapted to the outer surface of the connecting pipe, and the upper end of the support rod is configured to be angle-adjustable, with a maximum adjustment angle of 20 degrees.

[0016] The beneficial effects of this invention are as follows: 1. By setting the boss-groove mating structure of the first and second snap-fit ​​components, the power connection components between the motor and the roller shaft can be quickly separated and assembled. Disassembly can be completed without the aid of tools, which greatly shortens the time consumed by each disassembly and assembly, significantly improves the equipment maintenance efficiency, and meets the needs of frequent cleaning and component replacement in the food processing industry.

[0017] 2. By setting up a mold changing mechanism, when the cutter head needs to be replaced, the operator manually pulls the limiting tube upward to compress the first spring, causing the limiting tube to disengage from the limiting position of the cutter head, and the cutter head can be easily removed. After installing the new cutter head, the limiting tube is released, the first spring releases its elastic potential energy, pushes the limiting tube downward, and presses the cutter head tightly and fixes it. At this time, the limiting post falls completely into the limiting groove, forming a double mechanical limit. This design realizes the plug-and-play quick replacement of the cutter head, which significantly improves the equipment maintenance efficiency.

[0018] 3. By setting up a fixing mechanism and locking device, when it is necessary to fix the feed tube, rotating the rotating rod will cause the rotating ring to rotate through the meshing of the helical gear with the toothed surface of the rotating ring, which in turn will drive the rotating disk to rotate. The arc groove on the surface of the rotating disk cooperates with the column on the limiting plate, so that the limiting plate moves radially between the fixing plate and the rotating disk, thereby clamping and fixing the feed tube. The cooperation of the slot and the locking block can make the rotating rod accurately stop at the predetermined position, achieving precise positioning and locking. This avoids the problem of insecure fixing or incomplete unlocking caused by the rotating rod rotating arbitrarily. Moreover, this operation is simple and quick, which greatly improves the efficiency of installing and disassembling the feed tube. At the same time, the helical gear transmission has the characteristics of smooth transmission and strong load-bearing capacity, ensuring the reliability and stability of the fixing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a meat grinder that is easy to assemble according to the present invention; Figure 2 This is a cross-sectional view of the housing of a meat grinder that is easy to assemble, as proposed in this invention. Figure 3 This invention provides a meat grinder that is easy to assemble. Figure 2 Enlarged view of point A in the middle; Figure 4 This is a perspective view of the fixing mechanism of a meat grinder that is easy to assemble, as proposed in this invention. Figure 5 This is a cross-sectional view of the fixing mechanism of a meat grinder that is easy to assemble, as proposed in this invention. Figure 6 This is a perspective view of the clamping block of a meat grinder that is easy to assemble, as proposed in this invention. Figure 7 This is a cross-sectional view of the rotating disc of a meat grinder that is easy to assemble, as proposed in this invention. Figure 8 This is a perspective view of the auxiliary tube of a meat grinder that is easy to assemble, as proposed in this invention. Figure 9 This is a bottom view of the fixing mechanism of a meat grinder that is easy to assemble, as proposed in this invention. Figure 10 This is a diagram showing the motor location of a meat grinder that is easy to assemble, as proposed in this invention. Figure 11 This is a cross-sectional view of a nut in a meat grinder that is easy to assemble, as proposed in this invention. Figure 12 This is a diagram showing the connection relationship between the nut and the threaded ring of a meat grinder that is easy to assemble, as proposed in this invention. Figure 13 This diagram shows the connection relationship between the first and second snap-fit ​​components of a meat grinder that is easy to assemble, as proposed in this invention.

[0020] In the diagram: 1. Box body; 2. Connecting pipe; 3. Meat grinding mechanism; 30. Motor; 31. Auxiliary plate; 32. Snap-fit ​​component one; 33. Snap-fit ​​component two; 34. Bearing two; 35. Threaded ring; 36. Nut; 37. Bearing three; 38. Bearing one; 39. Roller shaft; 4. Mold changing mechanism; 41. Limiting ring; 42. Spring one; 43. Limiting pipe; 44. Cutting head; 45. Limiting post; 5. Fixing mechanism; 50. Locking device; 501. Rotating rod; 502. Slot; 503. Spring two; 504. Locking block; 505. Helical gear; 51. Sleeve; 52. Rotating ring; 53. Rotating plate; 54. Fixing plate; 55. Limiting plate; 56. Rectangular groove; 57. Slider; 6. Auxiliary pipe; 60. Spiral groove; 7. Feed pipe; 8. Placement plate; 9. Support rod. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Reference Figures 1-13 A meat grinder that is easy to assemble includes a housing 1. A connecting pipe 2 is provided on one side of the housing 1. A meat grinding mechanism 3 is provided between the connecting pipe 2 and the housing 1. A mold changing mechanism 4 is provided at one end of the connecting pipe 2. A feed inlet is provided at the upper end of the connecting pipe 2. An auxiliary pipe 6 is fixedly connected to the inner wall of the feed inlet. A fixing mechanism 5 is provided at the upper end of the auxiliary pipe 6. A feed pipe 7 is fixedly clamped inside the fixing mechanism 5. A placement tray 8 is provided at the upper end of the feed pipe 7. A support rod 9 is provided on the outer side of the connecting pipe 2. The lower end of the support rod 9 is rotatably connected to the side of the housing 1.

[0023] In this embodiment, the meat grinder 3 includes a motor 30. One end of the output shaft of the motor 30 is fixedly connected to an auxiliary disk 31. One side of the auxiliary disk 31 is fixedly connected to a snap-fit ​​component 32. One side of the snap-fit ​​component 32 is snapped with a snap-fit ​​component 33. One side of the snap-fit ​​component 33 is provided with a bearing 38. The outer ring of the bearing 38 is embedded in the side of the connecting pipe 2. One side of the inner ring of the bearing 38 is fixedly connected to a roller 39. The outer periphery of the auxiliary disk 31 is sleeved with a bearing 34. The outer ring of the bearing 34 is fixedly connected to the body of the housing 1. One side of the outer ring of the bearing 34 is fixedly connected to a threaded ring 35. The surface of the threaded ring 35 is threaded with a nut 36. One side of the nut 36 is provided with a bearing 37. One side of the inner ring of the bearing 37 is fixedly connected to the side of the connecting pipe 2. The outer ring of the bearing 37 is fixedly connected to one side of the nut 36.

[0024] Specifically, the power transmission path of the meat grinder 3 is as follows: When the motor 30 is powered on, the output shaft drives the auxiliary disk 31 to rotate synchronously. The locking component 32 on the left end face of the auxiliary disk 31 adopts a boss-groove mating structure, which forms a circumferential limiting locking with the groove-boss structure of the locking component 33, thereby transmitting the rotational power of the auxiliary disk 31 to the locking component 33. The locking component 33 drives the bearing 38 to rotate, thereby driving the roller 39 to rotate, thereby realizing the extrusion of the meat. The design of the above structure not only ensures the stability of the power transmission, but also realizes the disassembly and maintenance of the locking power transmission structure. It can be quickly disassembled and installed, which reduces the space occupied by the entire equipment to a certain extent and makes it convenient to carry and transport.

[0025] In this embodiment, the mold changing mechanism 4 includes a limiting ring 41. The inner wall of the limiting ring 41 is fixedly sleeved with the outer surface of the connecting pipe 2. A spring 42 is slidably sleeved on the outer surface of the connecting pipe 2. One end of the spring 42 is fixedly connected to one end of the limiting ring 41. The other end of the spring 42 is fixedly connected to a limiting pipe 43. A cutter head 44 is slidably sleeved on one end of the connecting pipe 2. The body of the cutter head 44 has a sliding groove. A limiting post 45 is slidably connected to the inner wall of the sliding groove. A limiting groove adapted to the lower end of the limiting post 45 is opened on the surface of the connecting pipe 2. A limiting block is provided on the surface of the limiting post 45. The surface of the limiting block is slidably connected to the inner wall of the sliding groove.

[0026] Specifically, the mold changing mechanism 4 adopts a composite structure of elastic limiting and sliding cooperation to achieve rapid replacement and precise positioning of the cutter head 44. The limiting ring 41 is fixedly sleeved to the connecting tube 2 by welding or heat shrinking process to form a stable reference mounting surface; the spring 42 is sleeved on the outer surface of the connecting tube 2, with one end abutting against the end face of the limiting ring 41 and the other end fixedly connected to the limiting tube 43, providing a reset elastic force for the entire mold changing process. When it is necessary to replace the cutter head 44, the operator manually lifts the limiting tube 43 to one side to compress the spring 42, causing the limiting tube 43 to disengage from the limiting position of the cutter head 44.

[0027] The cutter head 44 is slidably sleeved with the connecting pipe 2 through its inner hole. A groove on its body and a limiting post 45 form a guiding sliding mechanism. The lower end of the limiting post 45 is embedded in a limiting groove on the surface of the connecting pipe 2, achieving circumferential positioning of the cutter head 44 and preventing it from twisting during operation. A limiting block in the middle of the limiting post 45 slides against the inner wall of the groove, limiting the axial displacement of the limiting post 45 while ensuring its flexible sliding within the groove. When the cutter head 44 is installed in place, the limiting pipe 43 is released, and the spring 42 releases its elastic potential energy, pushing the limiting pipe 43 to move and press the cutter head 44 into place. At this time, the limiting post 45 completely falls into the limiting groove, forming a double mechanical limiting.

[0028] In this embodiment, the inner diameter of the limiting tube 43 is equal to the outer diameter of the limiting ring 41, and the maximum outer diameter of the cutter head 44 is equal to the outer diameter of the limiting ring 41.

[0029] Specifically, the above-mentioned structure ensures that the blade 44 is installed in an accurate position, greatly improves the mold changing efficiency, and effectively avoids equipment malfunctions caused by installation deviations, thus ensuring the reliability and processing accuracy of the meat grinder.

[0030] In this embodiment, the fixing mechanism 5 includes a sleeve 51. A through hole is provided in the middle of the sleeve 51. A locking device 50 is rotatably connected inside the through hole. An annular groove is provided inside the sleeve 51. A rotating ring 52 is provided in the upper half of the annular groove. The upper end of the rotating ring 52 is provided with an inclined toothed surface. A rotating disk 53 is fixedly connected to the lower end of the rotating ring 52. An arc-shaped groove is arrayed on the surface of the rotating disk 53. A fixing plate 54 is provided below the rotating disk 53. A limiting plate 55 adapted to the arc-shaped groove is arrayed between the fixing plate 54 and the rotating disk 53. A column that slides against the inner wall of the arc-shaped groove is provided on the upper surface of the limiting plate 55. A rectangular groove 56 adapted to the limiting plate 55 is provided on the upper surface of the fixing plate 54. A rectangular block adapted to the rectangular groove 56 is provided on the lower surface of the limiting plate 55. The fixing plate 54 and the rotating disk 53 are both located in the lower half of the annular groove.

[0031] Specifically, the sleeve 51 of the fixing mechanism 5 serves as the basic support component of the entire mechanism. The through hole in the middle of its tube provides rotation space for the locking device 50. The locking device 50 can rotate within the through hole to achieve transmission with the rotating ring 52, thereby achieving the purpose of fastening the entire mechanism. The rotation of the rotating rod 501 of the locking device 50 drives the rotating ring 52, which can easily achieve transmission of the rotating ring 52. The operation is simple and quick, greatly improving work efficiency. In terms of fixing stability, multiple limiting plates 55 are evenly distributed in the fixing plate 54 and the rotating disk 53, which can apply a uniform clamping force to the inserted parts, ensuring that the parts will not shake or shift during the fixing process, thus improving the reliability of the fixing. Moreover, this design can adapt to feed tubes 7 of different sizes and shapes, and has strong versatility.

[0032] In this embodiment, the locking device 50 includes a rotating rod 501. The rod body of the rotating rod 501 is rotatably connected to the inner wall of the through hole through a bearing. The rod body of the rotating rod 501 has slots 502 arranged in an array. The inner wall of the through hole has symmetrically arranged placement grooves. A second spring 503 is arranged in the placement groove. One end of the second spring 503 is fixedly connected to the inner wall of the placement groove. The other end of the second spring 503 is fixedly connected to a block 504. One side of the block 504 is provided with a protrusion that matches the slot 502. One end of the rotating rod 501 is fixedly connected to a helical gear 505. The surface of the helical gear 505 meshes with the toothed surface of the upper surface of the rotating ring 52.

[0033] Specifically, the locking device 50 is the core component of the entire fixing mechanism 5, enabling precise locking and unlocking. The rotating rod 501 is rotatably connected to the inner wall of the through hole via a bearing, which allows the rotating rod 501 to rotate smoothly within the through hole, reducing friction during rotation and ensuring operational flexibility.

[0034] The slots 502 arrayed on the rotating rod 501 cooperate with the locking blocks 504 in the mounting slot, playing a crucial role in positioning and locking. The mounting slot is located on the inner wall of the through hole, and spring 503 is installed in the mounting slot, with one end fixed to the inner wall of the mounting slot and the other end connected to the locking block 504. Spring 503 is always under a certain compression, providing a continuous thrust to the locking block 504, allowing the protrusions on the locking block 504 to be tightly embedded in the slots 502. When it is necessary to rotate the rotating rod 501, the operator needs to apply a certain external force to overcome the elasticity of spring 503, causing the locking block 504 to disengage from the slots 502, allowing the rotating rod 501 to rotate. After rotating to the appropriate position, the external force is released, and under the action of spring 503, the locking block 504 re-engages in the slots 502, locking the rotating rod 501 in that position.

[0035] In terms of operational precision, the cooperation between the slot 502 and the locking block 504 ensures that the rotating rod 501 accurately stops at the predetermined position, achieving precise positioning and locking. This avoids problems such as insecure fixing or incomplete unlocking caused by the rotating rod 501 rotating arbitrarily. Regarding transmission performance, the meshing transmission between the helical gear 505 and the toothed surface of the rotating ring 52 makes operation smoother and more reliable, capable of withstanding greater torque, and improving the working efficiency and stability of the entire fixing mechanism 5. Furthermore, the second spring 503 provides the rotating rod 501 with a certain buffering capacity in the locked state, effectively reducing loosening caused by external vibration or impact, further enhancing the reliability of the fixing and extending the service life of the equipment.

[0036] In this embodiment, a cavity is provided at the lower end of the housing 1.

[0037] Specifically, the cavity at the lower end of the housing 1 is a hollow storage structure. Its internal space is specifically designed according to the dimensions of the disassembly components of the meat grinding mechanism 3, the mold changing mechanism 4, and the fixing mechanism 5, forming a modular storage area. A removable sealing cover is provided at the opening of the cavity. The cover is connected to the housing 1 by a snap or thread, which facilitates quick opening and closing. The opening and closing of the sealing cover and the housing 1 is existing technology and will not be described in detail.

[0038] In this embodiment, the outer surface of the auxiliary tube 6 is symmetrically provided with spiral grooves 60, and a magnetic absorbing plate is provided under the inner bottom wall of the spiral grooves 60. A slider 57 adapted to the spiral grooves 60 is symmetrically provided at the lower inner wall of the sleeve 51, and a magnetic absorbing plate is provided at the bottom of the slider 57.

[0039] Specifically, guided by the spiral groove 60, a single installation / disassembly operation can be completed in a very short time, which is much more efficient than traditional bolt connections and requires no additional tools. The mechanical limiting of the spiral structure and the magnetic attraction of the magnetic plate combine to ensure that the connected parts do not loosen when the motor 30 is running at high speed.

[0040] In this embodiment, the upper end of the support rod 9 is adapted to the outer surface of the connecting pipe 2, and the upper end of the support rod 9 is configured to be angle-adjustable, with a maximum adjustment angle of 20 degrees.

[0041] Specifically, in use, the support rod 9, which is in close contact with the surface of the box 1, is pulled apart, and the support rod 9 is rotated along its lower end. The maximum rotation angle of the lower end of the support rod 9 is the same as the maximum adjustment angle of its upper end. The maximum rotation angle of both the upper and lower ends of the support rod 9 is 20 degrees. At this time, the connecting pipe 2 is placed parallel to the horizontal plane.

[0042] Reference Figures 1-13 An assembly method for an easy-to-assemble meat grinder, the operation steps are as follows: Step 1: Before installation, place the box 1 on a relatively flat ground, open the sealing cover, and first take out the relevant parts connected to the connecting pipe 2. Then, bend the support rod 9 to one side to the maximum angle, and at the same time adjust the upper end of the support rod 9 to a vertical state. Then, place the connecting pipe 2 on the upper end of the support rod 9 and slowly push the connecting pipe 2 close to one side of the box 1. When the second snap-fit ​​part 33 on one side of the connecting pipe 2 comes into contact with the first snap-fit ​​part 32 on the side of the box 1, the operator should slightly rotate the connecting pipe 2. The connecting pipe 2 will drive the second snap-fit ​​part 33 to rotate until the second snap-fit ​​part 33 and the first snap-fit ​​part 32 snap together. Before they snap together, rotate the nut 36 at the same time. The threaded connection between the nut 36 and the threaded ring 35 will further stabilize the snap-fit ​​effect between the second snap-fit ​​part 33 and the first snap-fit ​​part 32. Step 2: Then take out the fixing mechanism 5, align the slider 57 at the lower end of the fixing mechanism 5 with the spiral groove 60, rotate the entire fixing mechanism 5 until the slider 57 contacts the magnetic plate on the inner wall of the spiral groove 60. A rubber pad is provided between the outer surface of the auxiliary tube 6 and the inner wall of the lower end of the sleeve 51 to reduce the vibration side effects of the motor 30 on the fixing mechanism 5. Step 3: Then take out the feed tube 7 again and insert it into the sleeve 51. Twist the rotating rod 501. The rotating rod 501 drives the helical gear 505 to rotate. The helical gear 505 further drives the rotating ring 52 to rotate. Under the drive of the rotating ring 52, the rotating disk 53 and the fixed plate 54 rotate relative to each other. One end of the limiting plate 55 between the two retracts towards the center of the rotating disk 53 until one end of the limiting plate 55 is tightly attached to the outer surface of the feed tube 7. Each limiting plate 55 and the inlet and outlet surfaces of the feed tube 7 are provided with rubber sheets. When the operator cannot rotate the rotating rod 501, the feed tube 7 has been fixed. At this time, the protrusion on one side of the locking block 504 and the locking groove 502 are engaged with each other. Step 4: Take out the cutter head 44. The operator pulls the limiting tube 43 to one side and simultaneously attaches the cutter head 44 to one end of the connecting tube 2. After the attachment is completed, the operator releases the limiting tube 43. The spring 42 releases its elastic potential energy, pushing the limiting tube 43 to move and pressing the cutter head 44 into place. At this time, the limiting post 45 falls completely into the limiting groove, forming a double mechanical limit. Finally, the placement plate 8 is taken out from the cavity of the box 1 and fixed to the upper end of the feed tube 7 with bolts.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A meat grinder that is easy to assemble, comprising a housing (1), characterized in that: A connecting pipe (2) is provided on one side of the box (1). A meat grinding mechanism (3) is provided between the connecting pipe (2) and the box (1). A mold changing mechanism (4) is provided at one end of the connecting pipe (2). A feed port is provided at the upper end of the connecting pipe (2). An auxiliary pipe (6) is fixedly connected to the inner wall of the feed port. A fixing mechanism (5) is provided at the upper end of the auxiliary pipe (6). A feed pipe (7) is fixedly connected inside the fixing mechanism (5). A placement plate (8) is provided at the upper end of the feed pipe (7). A support rod (9) is provided on the outer side of the connecting pipe (2). The lower end of the support rod (9) is rotatably connected to the side of the box (1).

2. The meat grinder that is easy to assemble according to claim 1, characterized in that: The meat grinding mechanism (3) includes a motor (30), one end of the output shaft of the motor (30) is fixedly connected to an auxiliary disk (31), one side of the auxiliary disk (31) is fixedly connected to a snap-fit ​​component one (32), one side of the snap-fit ​​component one (32) is snapped with a snap-fit ​​component two (33), one side of the snap-fit ​​component two (33) is provided with a bearing one (38), the outer ring of the bearing one (38) is embedded in the side of the connecting pipe (2), one side of the inner ring of the bearing one (38) is fixedly connected to a roller shaft (39), the auxiliary disk (31) is fixedly connected to a connecting pipe (2), and one side of the inner ring of the bearing one (38) is fixedly connected to a roller shaft (39). A second bearing (34) is sleeved around the outer edge of the auxiliary plate (31). The outer ring of the second bearing (34) is fixedly connected to the body of the housing (1). A threaded ring (35) is fixedly connected to one side of the outer ring of the second bearing (34). A nut (36) is threadedly connected to the surface of the threaded ring (35). A third bearing (37) is provided on one side of the nut (36). One side of the inner ring of the third bearing (37) is fixedly connected to the side of the connecting pipe (2). The outer ring of the third bearing (37) is fixedly connected to one side of the nut (36).

3. The meat grinder that is easy to assemble according to claim 2, characterized in that: The mold changing mechanism (4) includes a limiting ring (41). The inner wall of the limiting ring (41) is fixedly sleeved with the outer surface of the connecting pipe (2). A spring (42) is slidably sleeved on the outer surface of the connecting pipe (2). One end of the spring (42) is fixedly connected to one end of the limiting ring (41). The other end of the spring (42) is fixedly connected to a limiting pipe (43). A cutter head (44) is slidably sleeved on one end of the connecting pipe (2). The body of the cutter head (44) has a sliding groove. A limiting post (45) is slidably connected to the inner wall of the sliding groove. A limiting groove adapted to the lower end of the limiting post (45) is opened on the surface of the connecting pipe (2). A limiting block is provided on the surface of the limiting post (45). The surface of the limiting block is slidably connected to the inner wall of the sliding groove.

4. A meat grinder that is easy to assemble according to claim 3, characterized in that: The inner diameter of the limiting tube (43) is equal to the outer diameter of the limiting ring (41), and the maximum outer diameter of the cutter head (44) is equal to the outer diameter of the limiting ring (41).

5. A meat grinder that is easy to assemble according to claim 4, characterized in that: The fixing mechanism (5) includes a sleeve (51), with a through hole in the middle of the sleeve (51). A locking device (50) is rotatably connected inside the through hole. An annular groove is formed inside the sleeve (51), and a rotating ring (52) is provided in the upper half of the annular groove. The upper end of the rotating ring (52) is set with an inclined toothed surface. A rotating disk (53) is fixedly connected to the lower end of the rotating ring (52). An arc-shaped groove is arrayed on the surface of the rotating disk (53). A fixing plate is provided below the rotating disk (53). 54), a limiting plate (55) adapted to the arc groove is arranged in an array between the fixing plate (54) and the rotating disk (53). The upper surface of the limiting plate (55) is provided with a column that slides against the inner wall of the arc groove. The upper surface of the fixing plate (54) is provided with a rectangular groove (56) adapted to the limiting plate (55). The lower surface of the limiting plate (55) is provided with a rectangular block adapted to the rectangular groove (56). The fixing plate (54) and the rotating disk (53) are both located in the lower half of the annular groove.

6. A meat grinder that is easy to assemble according to claim 5, characterized in that: The locking device (50) includes a rotating rod (501). The rod body of the rotating rod (501) is rotatably connected to the inner wall of the through hole through a bearing. The rod body of the rotating rod (501) has slots (502) arranged in an array. The inner wall of the through hole has symmetrically arranged placement grooves. A second spring (503) is arranged in the placement groove. One end of the second spring (503) is fixedly connected to the inner wall of the placement groove. The other end of the second spring (503) is fixedly connected to a block (504). One side of the block (504) is provided with a protrusion that matches the slot (502). One end of the rotating rod (501) is fixedly connected to a helical gear (505). The surface of the helical gear (505) meshes with the toothed surface of the upper surface of the rotating ring (52).

7. A meat grinder that is easy to assemble according to claim 6, characterized in that: The lower end of the box (1) has a cavity.

8. A meat grinder that is easy to assemble according to claim 7, characterized in that: The outer surface of the auxiliary tube (6) is symmetrically provided with spiral grooves (60), and a magnetic absorbing plate is provided under the inner bottom wall of the spiral groove (60). A slider (57) adapted to the spiral groove (60) is symmetrically provided at the lower inner wall of the sleeve (51), and a magnetic absorbing plate is provided at the bottom of the slider (57).

9. A meat grinder that is easy to assemble according to claim 8, characterized in that: The upper end of the support rod (9) is adapted to the outer surface of the connecting pipe (2), and the upper end of the support rod (9) is configured to be angle-adjustable, with a maximum adjustment angle of 20 degrees.

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