A simple to assemble shredder

Abstract

This utility model discloses a simple-to-assemble pulverizer, including a main pulverizing chamber, a pulverizing chamber cover, a lead screw, a pressure spring, a lower fixed nut, a lifting adjustment nut, a lifting adjustment knob, and an upper pressure arch. The lower end of the lead screw passes through the pressure spring and the cover in sequence and is screwed to the lower fixed nut; the upper end of the lifting adjustment nut passes through the upper pressure arch and is connected to the adjustment knob. The nut and the lead screw are threadedly engaged, and the two ends of the upper pressure arch are fitted with fixed ears, with the lower end of the pressure spring fitting against the inner arc of the arch. Rotating the adjustment knob drives the lead screw to rise or fall relative to the nut, thereby achieving one-click tightening or loosening of the pulverizing chamber cover and the main chamber. This technical solution, which uses a single lifting adjustment knob to drive the lifting adjustment nut to engage with the lead screw thread, combined with the integrated linkage structure of the pressure spring and the upper pressure arch, provides a pulverizer that is simple to assemble, has fewer parts, and is easy to operate. It solves the problem of existing pulverizers relying on a double-knob fastening structure for the cover, resulting in more parts and cumbersome assembly steps.

Description

Technical Field

[0001] This utility model relates to a meat grinder, and more particularly to a pulverizer that is easy to assemble. Background Technology

[0002] A grinder is a common food processing and laboratory sample preparation device, widely used in homes, catering, scientific research, and light industry. Its core working principle is to use high-speed rotating grinding or cutting components to crush and grind solid materials into the required particle size for subsequent cooking, testing, or other processing.

[0003] In existing technology, the cover of a crusher is generally fixed by two symmetrically distributed fastening knobs (or handwheels) connected to the outer casing to ensure the sealing and safety between the cover and the crushing chamber during high-speed operation. While this dual-knob fastening structure can reliably fix the cover to the chamber, it has the following shortcomings: The large number of parts, including fastening knobs, screws, spring washers, and retaining rings, not only increases material costs but also complicates inventory and management. The assembly process is complicated: each machine requires fastening screws and knobs to be installed on both sides of the cover and the body, and adjusted to the same preload. The assembly time is long and errors are easy to occur. Inconvenient maintenance: Multiple fasteners need to be disassembled one by one during routine cleaning or replacement of seals, which increases the workload of disassembly and assembly and the risk of failure; Hand feel and safety: Traditional knobs often require a large tightening force to tighten, which is not conducive to quick opening and closing; at the same time, if the tightening is uneven, it may cause the cover to loosen or the seal to be poor in some areas.

[0004] In view of the above-mentioned technical defects, there is an urgent need for a machine cover fastening solution with a simpler structure, fewer parts, and faster operation, so as to reduce assembly and maintenance procedures, reduce manufacturing costs, and improve the ease of use and safety of the crusher. Utility Model Content

[0005] This utility model discloses a simple-to-assemble pulverizer, including: a main pulverizing chamber, a pulverizing chamber cover, a pressure spring, a lead screw, a lower fixed nut, a lifting adjustment nut, a lifting adjustment knob, and an upper pressure bow. The main pulverizing chamber has symmetrical fixing ears on its side. The upper edge of the main pulverizing chamber is covered by the pulverizing chamber cover. The lower end of the lead screw passes through the pressure spring and the pulverizing chamber cover and is screwed to the lower fixed nut. The lead screw, pressure spring, and pulverizing chamber cover are relatively fixed in the vertical direction. The upper end of the lifting adjustment nut passes through the upper pressure bow and is connected to the lifting adjustment knob. The upper end of the lead screw is screwed to the lifting adjustment nut. The lifting adjustment nut, lifting adjustment knob, and upper pressure bow are relatively fixed in the vertical direction. The two ends of the upper pressure bow contact the lower end face of the fixing ear, and the two ends of the pressure spring contact the lower arc surface of the upper pressure bow. Rotating the lifting adjustment knob causes the lifting adjustment nut to rotate, causing the lead screw to move up and down within the lifting adjustment nut, thereby controlling the tightness or looseness of the pulverizing chamber cover and the main pulverizing chamber. This invention provides a pulverizer with simple assembly, fewer parts, and convenient operation by using a single lifting adjustment knob to drive the lifting adjustment nut to engage with the lead screw, and combining it with an integrated linkage structure of the pressure spring and the upper pressure bow. This solves the problem of existing pulverizers relying on a double-knob fastening structure for the machine cover, which results in many parts and complicated assembly steps.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A simple-to-assemble pulverizer includes: a main pulverizing chamber, a pulverizing chamber cover, a pressure spring, a lead screw, a lower fixed nut, a lifting adjustment nut, a lifting adjustment knob, and an upper pressure bow. Symmetrical fixing ears are provided on the sides of the main pulverizing chamber. The upper edge of the main pulverizing chamber is covered by the pulverizing chamber cover. The lower end of the lead screw passes through the pressure spring and the pulverizing chamber cover, and is screwed to the lower fixed nut. The lead screw, pressure spring, and pulverizing chamber cover are vertically fixed. The upper end of the lifting adjustment nut passes through the upper pressure bow and is connected to the lifting adjustment knob. The upper end of the lead screw is screwed to the lifting adjustment nut. The lifting adjustment nut, lifting adjustment knob, and upper pressure bow are vertically fixed. Both ends of the upper pressure bow contact the lower end faces of the fixing ears, and both ends of the pressure spring contact the lower arc surface of the upper pressure bow. Rotating the lifting adjustment knob rotates the lifting adjustment nut, causing the lead screw to move up and down within the lifting adjustment nut, thereby controlling the tightness or looseness of the pulverizing chamber cover and the main pulverizing chamber.

[0007] Further, the fixing ear is riveted to the main unit's crushing chamber using rivets.

[0008] As a further improvement, a gasket is provided around the lower end face of the crushing chamber cover to enhance the sealing between the crushing chamber cover and the main crushing chamber.

[0009] Further configuration includes a lower connecting screw at the lower end of the lead screw column, an upper adjusting screw at the upper end of the lead screw column, and the lower connecting screw passing through the compression spring plate and the crushing chamber cover from top to bottom and being screwed to the lower fixing nut.

[0010] Further, the lower end of the lifting adjustment nut is provided with a locking step. After the lifting adjustment nut passes through the upper pressure plate, the locking step locks into the lower end face of the upper pressure plate. The lower end of the lifting adjustment nut is provided with an internal adjustment thread, which is screwed to the upper adjustment screw. The upper end of the lifting adjustment nut is provided with an upper fixing internal thread. The upper end of the lifting adjustment nut is inserted into the lifting adjustment knob and screwed to the fixing screw. Rotating the lifting adjustment knob causes the lifting adjustment nut to rotate, so that the upper adjustment screw of the lead screw column moves up and down within the internal adjustment thread of the lifting adjustment nut, thereby controlling the tightness or looseness of the crushing chamber cover and the main crushing chamber.

[0011] This invention provides a pulverizer with simple assembly, fewer parts, and convenient operation by using a single lifting adjustment knob to drive the lifting adjustment nut to engage with the lead screw, and combining it with an integrated linkage structure of the pressure spring and the upper pressure bow. This solves the problem of existing pulverizers relying on a double-knob fastening structure for the machine cover, which results in many parts and complicated assembly steps. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional view of some components of this utility model; Figure 3 This is an exploded view of the present invention; In the diagram: Main unit crushing chamber 1, fixing lug 11, rivet 12. 2. Crushing chamber cover; 21. Washer; 3. Compression spring. 4. Lead screw column, 41. Lower connecting screw, 42. Upper adjusting screw, 5. Lower fixing nut 6. Adjusting nut 61, internal adjusting thread 62, locking step 63, upper fixing internal thread 64 7. Lifting adjustment knob; 8. Fixing screw; 9. Upper pressure plate. Detailed Implementation

[0013] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0015] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0017] like Figures 1-3 As shown, this utility model provides a simple-to-assemble crusher, including: a main crushing chamber 1, a crushing chamber cover 2, a pressure spring 3, a lead screw 4, a lower fixing nut 5, a lifting adjustment nut 6, a lifting adjustment knob 7, and an upper pressure bow 9. The main crushing chamber 1 has symmetrical fixing ears 11 on its side. The upper edge of the main crushing chamber 1 is covered by the crushing chamber cover 2. The lower end of the lead screw 4 passes through the pressure spring 3 and the crushing chamber cover 2, and is screwed to the lower fixing nut 5. The lead screw 4, pressure spring 3, and crushing chamber cover 2 are relatively fixed in the vertical direction. The upper end of the lifting adjustment nut 6 passes through the upper pressure bow 9 and connects to the lifting adjustment knob 7. The upper end of the lead screw 4 is screwed to the lifting adjustment nut 6. The lifting adjustment nut 6, lifting adjustment knob 7, and upper pressure bow 9 are relatively fixed in the vertical direction. The two ends of the upper pressure bow 9 contact the lower end face of the fixing ear 11, forming two support points. At this time, the upper pressure bow 9, lifting adjustment nut 6, and lifting adjustment knob 7 can be regarded as an integrated linkage structure. The two ends of the pressure spring 3 are in contact with the lower arc surface of the upper pressure plate 9. Rotating the lifting adjustment knob 7 drives the lifting adjustment nut 6 to rotate, causing the lead screw 4 to rise and fall within the lifting adjustment nut 6, thereby controlling the tightness or looseness of the crushing chamber cover 2 and the main crushing chamber 1.

[0018] Preferably, the fixing ears 11 are riveted to the main unit crushing chamber 1 by rivets 12. The two fixing ears 11 are arranged symmetrically.

[0019] Preferably, a gasket 21 is provided on the lower end face of the crushing chamber cover 2 to improve the sealing between the crushing chamber cover 2 and the main crushing chamber 1.

[0020] Preferably, the lower end of the lead screw column 4 is provided with a lower connecting screw 41, the upper end of the lead screw column 4 is provided with an upper adjusting screw 42, and the lower connecting screw 41 passes through the pressure spring 3 and the crushing chamber cover 2 from top to bottom and is screwed and locked with the lower fixing nut 5, so that the lead screw column 4, the pressure spring 3 and the crushing chamber cover 2 are kept in a fixed relative position in the vertical direction.

[0021] Preferably, the lower end of the lifting adjustment nut 6 is provided with a locking step 62. After the lifting adjustment nut 6 passes through the upper pressure plate 9, the locking step 62 locks into the lower end face of the upper pressure plate 9, so that the lifting adjustment nut 6 and the upper pressure plate 9 are relatively fixed. The lower end of the lifting adjustment nut 6 is provided with an internal adjustment thread 61, which is screwed to the upper adjustment screw 42. The upper end of the lifting adjustment nut 6 is provided with an upper fixing internal thread 63. The upper end of the lifting adjustment nut 6 is inserted into the lifting adjustment knob 7 and screwed to the fixing screw 8. Rotating the lifting adjustment knob 7 causes the lifting adjustment nut 6 to rotate, so that the upper adjustment screw 42 of the lead screw column 4 moves up and down within the internal adjustment thread 61 of the lifting adjustment nut 6, thereby controlling the tightness or looseness of the crushing chamber cover 2 and the main crushing chamber 1.

[0022] The operating steps of this utility model are as follows: Step 1: First, place the crushing chamber cover 2 on the main crushing chamber 1, ensuring that the gasket 21 fits tightly with the chamber opening; the two ends of the upper pressure plate 9 are tightly attached to the fixing ears 11, and the lower end of the pressure spring plate 3 abuts against the inner arc surface of the pressure plate.

[0023] Step 2: Rotate the lifting adjustment knob 7 to drive the lifting adjustment nut 6 to rotate. Since the lead screw 4, the pressure spring 3, and the crushing chamber cover 2 are relatively fixed in the vertical direction, and the lifting adjustment nut 6, the lifting adjustment knob 7, and the upper pressure plate 9 are also relatively fixed in the vertical direction, when the knob 7 is rotated to move the lead screw 4 downward to press the crushing chamber cover 2, and at the same time the reaction force moves the upper pressure plate 9 upward to press against the lower end face of the fixing ear 11, the vertical distance between the lead screw 4 and the upper pressure plate 9 is increased, the pressure spring 3 is relaxed, and the cover 2 is pressed tightly against the chamber body 1, achieving quick single-knob locking. Reverse rotation loosens the nut, bringing the lead screw 4 and the lifting adjustment nut 6 closer together. The upper pressure plate 9 then moves downward and disengages from the fixed ear 11. At this time, the vertical distance shortens, and the pressure spring 3 is further compressed by the downward-moving upper pressure plate 9, thus separating the crushing chamber cover 2 from the main crushing chamber 1.

[0024] This invention replaces the dual-knob structure with a single lifting adjustment nut 6 and a lead screw 4, significantly reducing the number of fastening parts. A single rotation is all it takes to tighten and loosen the crushing chamber cover 2 and the main crushing chamber 1, saving assembly and maintenance time. The pressure spring 3 provides pre-pressure buffering, and the upper pressure arch 9 provides two-point support to ensure even force distribution, guaranteeing the sealing performance and operational stability of the crushing chamber cover 2.

[0025] This utility model provides a crusher that is simple to assemble, has fewer parts, and is easy to operate, solving the problem that existing crushers rely on a double-knob fastening structure for the machine cover, resulting in more parts and cumbersome assembly steps.

[0026] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Those skilled in the art can make equivalent substitutions or improvements to the above structures without departing from the spirit and scope of the technical solution of this utility model, and all such substitutions or improvements should be covered within the protection scope of this utility model.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A simple-to-assemble pulverizer, characterized in that, include: The main unit crushing chamber (1), crushing chamber cover (2), pressure spring (3), lead screw (4), lower fixing nut (5), lifting adjustment nut (6), lifting adjustment knob (7), and upper pressure plate (9) are provided. Symmetrical fixing ears (11) are provided on the side of the main unit crushing chamber (1). The upper edge of the main unit crushing chamber (1) is covered by the crushing chamber cover (2). The lower end of the lead screw (4) passes through the pressure spring (3), the crushing chamber cover (2), and is screwed to the lower fixing nut (5). The lead screw (4), the pressure spring (3), and the crushing chamber cover (2) are fixed in a vertical position. The upper end of the lifting adjustment nut (6) passes through the lower fixing nut (5). The upper pressure plate (9) is connected to the lifting adjustment knob (7), and the screw rod (4) reaches the upper end and is screwed to the lifting adjustment nut (6). The lifting adjustment nut (6), the lifting adjustment knob (7), and the upper pressure plate (9) are fixed in a vertical position. The two ends of the upper pressure plate (9) are in contact with the lower end face of the fixed ear (11), and the two ends of the pressure spring (3) are in contact with the lower arc surface of the upper pressure plate (9). Rotating the lifting adjustment knob (7) drives the lifting adjustment nut (6) to rotate, so that the screw rod (4) moves up and down in the lifting adjustment nut (6), thereby controlling the tightness or looseness of the crushing chamber cover (2) and the main crushing chamber (1).

2. A simple-to-assemble pulverizer according to claim 1, characterized in that: The fixing ear (11) is riveted to the main unit crushing chamber (1) by rivets (12).

3. A simple-to-assemble pulverizer according to claim 1, characterized in that: A gasket (21) is provided on the lower end face of the crushing chamber cover (2) to improve the sealing between the crushing chamber cover (2) and the main crushing chamber (1).

4. A simple-to-assemble pulverizer according to claim 1, characterized in that: The lower end of the lead screw column (4) is provided with a lower connecting screw (41), and the upper end of the lead screw column (4) is provided with an upper adjusting screw (42). The lower connecting screw (41) passes through the compression spring (3) and the crushing chamber cover (2) from top to bottom and is screwed to the lower fixing nut (5).

5. A simple-to-assemble pulverizer according to claim 1, characterized in that: The lower end of the lifting adjustment nut (6) is provided with a locking step (62). After the lifting adjustment nut (6) passes through the upper pressure bow plate (9), the locking step (62) locks into the lower end face of the upper pressure bow plate (9). The lower end of the lifting adjustment nut (6) is provided with an internal adjustment thread (61). The internal adjustment thread (61) is screwed into the upper adjustment screw (42). The upper end of the lifting adjustment nut (6) is provided with an upper fixing internal thread (63). The upper end of the lifting adjustment nut (6) is inserted into the lifting adjustment knob (7) and screwed into the fixing screw (8). Rotating the lifting adjustment knob (7) drives the lifting adjustment nut (6) to rotate, so that the upper adjustment screw (42) of the screw column (4) moves up and down in the internal adjustment thread (61) of the lifting adjustment nut (6), thereby controlling the tightness or looseness of the crushing chamber cover (2) and the main crushing chamber (1).

Images