Mixing device for fish feed production
The design of bevel gears and sleeves allows the mixing blades to rotate in opposite directions, solving the problem of uneven mixing of fish feed and achieving a more efficient mixing effect and a convenient maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAOMING DINGYI FEED CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-24
Smart Images

Figure CN224541496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feed processing technology, specifically a mixing device for fish feed production. Background Technology
[0002] Fish feed is a nutritionally formulated feed specifically designed for the growth and development of fish. It is one of the core inputs in aquaculture, providing balanced nutrition to promote growth, improve survival rate, and enhance fish quality. Fish feed typically consists of various raw materials, including protein sources, energy sources, vitamins, and minerals. Different raw materials provide different nutrients, and through mixing, these materials are evenly distributed according to the feed formula requirements, ensuring that fish obtain comprehensive and balanced nutrition while feeding, meeting their needs for various nutrients for growth, development, and maintaining vital functions.
[0003] Chinese Utility Model Patent Publication No. CN207980962U discloses a raw material mixing device for fish feed production. The specification of this device states that the spiral blades can move the raw materials from the bottom to the top for thorough mixing, further improving the mixing efficiency. The electric telescopic rod allows for the electric adjustment of the plate for convenient feeding. However, because the stirring blades can only stir in one direction at a time, in actual use, the fish feed has a high degree of stickiness, which can easily lead to localized agglomeration or uneven mixing during the stirring process. Furthermore, the unidirectional stirring can easily create "dead zones," resulting in insufficient mixing. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a mixing device for fish feed production, which can effectively solve the problems in the prior art.
[0005] The technical solution adopted by this utility model is: a mixing device for fish feed production, including a mixing tank, a discharge valve and a motor, wherein a stirring assembly is fixedly installed on the output shaft of the motor, and the stirring assembly is provided with a threaded sleeve;
[0006] The stirring assembly includes a transmission rod with a limit strip fixedly installed on its outer side. A gear box is connected through the transmission rod. A circular hole is opened on the side of the gear box near the motor. A rotating rod is welded to the inner side of the gear box. A bevel gear one rotates on the outer side of the rotating rod. A bevel gear one is also rotated on the inner side of the gear box. A bevel gear two is meshed with the end of bevel gear one near the motor. A rotating hole is opened on the side of bevel gear two near the motor. A bevel gear three is meshed with the end of bevel gear one near the discharge valve. A sliding hole is opened on the end of bevel gear three near the motor. A sleeve is fixedly connected to the side of bevel gear three near the discharge valve. A groove is opened on the end of the sleeve near the discharge valve. A stirring blade one is inserted into the inner side of the sleeve. An assembly hole is opened on the side of the stirring blade one near the motor. An insert block is fixedly installed on the outer side of the stirring blade one. The sleeve and the gear box are rotatably mounted.
[0007] Preferably, the transmission rod has a threaded groove at one end near the discharge valve, and two limit strips of the same size are provided and symmetrically distributed along the vertical central axis of the transmission rod. The two limit strips and the transmission rod are adapted to the rotating hole.
[0008] Through the above technical solution, the design of the limiting strip, transmission rod and rotating hole ensures that the transmission rod stably drives the bevel gear one when rotating without affecting the bevel gear three, ensuring that the bevel gear one is not prone to deviation and improving the stability of the component.
[0009] Preferably, the inner diameter of the circular hole and the sliding hole are the same, and the width of the two limiting strips and the transmission rod are the same as the diameter of the sliding hole of the circular hole.
[0010] Through the above technical solution, the design of the limiting strip, transmission rod, round hole and sliding hole ensures that the transmission rod and limiting strip will not affect the bevel gear three and the gear box during rotation, and also avoids the influence of the bevel gear three on the limiting strip and transmission rod during rotation, thus ensuring the reverse rotation stability of the stirring plate one and the stirring plate two.
[0011] Preferably, the grooves are provided with two of the same size and are symmetrically distributed along the vertical central axis of the sleeve, and the inserts are provided with two of the same size, with the end of the inserts near the motor fitting into the groove.
[0012] Through the above technical solution, the design of the groove and the insert provides a clear installation guide for the insert. The operator only needs to align the insert of the stirring plate one with the groove of the sleeve column to insert it, so as to achieve accurate installation of the stirring plate one and improve the efficiency of later maintenance.
[0013] Preferably, the transmission rod, bevel gear one, bevel gear three, and sleeve are located on the same vertical horizontal line, the assembly hole is adapted to the end of the transmission rod near the discharge valve, the included angle between bevel gear one, bevel gear three, and bevel gear two is 90°, and the center lines of bevel gear three and bevel gear two are located on the same vertical line.
[0014] Through the above technical solution, by designing the assembly hole and the transmission rod, when the sleeve drives the stirring plate to rotate, the transmission rod will not affect it by rotating in the opposite direction within the assembly hole due to the setting of the assembly hole, thus improving the stability of the component.
[0015] Preferably, the transmission rod has a threaded groove at one end near the discharge valve, a threaded sleeve is threaded on the outer side of the threaded groove, a round rod is fixedly installed at one end of the threaded sleeve near the discharge valve, and a stirring plate is fixedly installed on the outer side of the round rod.
[0016] Through the above technical solution, by designing the threaded groove and threaded sleeve, after the threaded sleeve is connected to the transmission rod, the end of the threaded sleeve near the motor will fit tightly against the bottom of the first stirring blade, forming a positioning clamp with the groove of the sleeve column, which not only restricts the vertical displacement of the first stirring blade, but also does not affect its rotation, further enhancing the stability of the component.
[0017] Preferably, the outer diameter of the threaded sleeve is larger than the inner diameter of the assembly hole, and the rotation direction of the motor output shaft is opposite to the opening direction of the threaded groove.
[0018] Through the above technical solution, by setting up the motor and the threaded groove, the rotation direction of the motor output shaft is opposite to the opening direction of the threaded groove, so that when the transmission rod rotates, the threaded sleeve will be subjected to a continuous "tightening force", which further enhances the axial pressing effect on the first stirring plate.
[0019] Compared with the prior art, the present invention provides a mixing device for fish feed production, which has the following beneficial effects:
[0020] 1. The mixing device for fish feed production, through the arrangement of bevel gear one, bevel gear two, bevel gear three and sleeve column, can realize the opposite rotation of stirring blade one and stirring blade two. In actual operation, because the fish feed raw materials are highly viscous and easily stick together, the oppositely rotating stirring blade one and stirring blade two can generate stronger shearing force and impact force. When processing viscous raw materials, the oppositely rotating stirring blade one and stirring blade two can effectively break the adhesion between the raw materials, making the mixing more thorough.
[0021] 2. In this fish feed production mixing device, the mixing blades 1 and 2 are components that come into direct contact with the fish feed and are prone to contamination. When maintenance or cleaning is required, no tools are needed. Simply unscrew the threaded sleeve to separate the mixing blade 1 from the round rod and the mixing blade 2. Then, the groove and the insert block make it easy to reposition and reassemble the mixing blade 1, effectively reducing the later maintenance cost. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the installation structure of the mixing tank and discharge valve of this utility model;
[0024] Figure 3 This is a schematic diagram of the installation structure of the mixing tank and gear box of this utility model;
[0025] Figure 4 This is a schematic diagram of the gear box and sleeve mounting structure of this utility model;
[0026] Figure 5 This is a schematic diagram of the installation structure of bevel gear one, bevel gear two, and bevel gear three of this utility model;
[0027] Figure 6 This is a schematic diagram of the bevel gear three-piece sleeve mounting structure of this utility model;
[0028] Figure 7 This is a schematic diagram of the installation structure of the threaded sleeve, round rod, and stirring plate of this utility model;
[0029] Figure 8 This is a schematic diagram of the sliding hole and rotating hole structure of this utility model;
[0030] Figure 9 This is a schematic diagram of the stirring plate, assembly hole, and insert block structure of this utility model.
[0031] The components are as follows: 1. Mixing tank; 2. Discharge valve; 3. Motor; 4. Stirring assembly; 401. Transmission rod; 402. Limiting strip; 403. Threaded groove; 405. Gear box; 406. Round hole; 407. Bevel gear one; 408. Bevel gear two; 409. Rotary hole; 410. Bevel gear three; 411. Sliding hole; 412. Sleeve column; 413. Groove; 414. Stirring blade one; 415. Assembly hole; 416. Insert block; 417. Rotating rod; 5. Threaded sleeve; 6. Round rod; 7. Stirring blade two. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Example 1: As Figure 1-9 As shown, the present invention provides a mixing device for fish feed production, including a mixing tank 1, a discharge valve 2 and a motor 3. The output shaft of the motor 3 is fixedly mounted with a stirring assembly 4, and the stirring assembly 4 is provided with a threaded sleeve 5.
[0034] The stirring assembly 4 includes a transmission rod 401, with a limit strip 402 fixedly installed on the outer side of the transmission rod 401. A gear box 405 is connected through the transmission rod 401. A round hole 406 is opened on the side of the gear box 405 near the motor 3. A rotating rod 417 is welded and installed on the inner side of the gear box 405. A bevel gear 407 rotates on the outer side of the rotating rod 417. A bevel gear 407 is rotatably installed on the inner side of the gear box 405. A bevel gear 408 is meshed on the end of the bevel gear 407 near the motor 3. A rotating hole is opened on the side of the bevel gear 408 near the motor 3. 409. A bevel gear 407 is meshed with a bevel gear 410 at one end near the discharge valve 2. A sliding hole 411 is provided at one end of the bevel gear 410 near the motor 3. A sleeve 412 is fixedly connected to the side of the bevel gear 410 near the discharge valve 2. A groove 413 is provided at one end of the sleeve 412 near the discharge valve 2. A stirring blade 414 is inserted and installed inside the sleeve 412. An assembly hole 415 is provided on the side of the stirring blade 414 near the motor 3. An insert block 416 is fixedly installed on the outside of the stirring blade 414. The sleeve 412 and the gear box 405 are rotatably mounted.
[0035] Specifically, the transmission rod 401 has a threaded groove 403 at one end near the discharge valve 2. Two limit strips 402 of the same size are provided and are symmetrically distributed along the vertical central axis of the transmission rod 401. The two limit strips 402 and the transmission rod 401 are adapted to the rotating hole 409. The advantage is that, through the design of the limit strips 402, the transmission rod 401 and the rotating hole 409, the transmission rod 401 can stably drive the bevel gear 407 when rotating without affecting the bevel gear 3 410, ensuring that the bevel gear 401 is not prone to deviation and improving the stability of the component.
[0036] Specifically, the inner diameter of the round hole 406 and the sliding hole 411 are the same, and the width of the two limiting strips 402 and the transmission rod 401 is the same as the diameter of the sliding hole 411 of the round hole 406. The advantage is that, through the design of the limiting strips 402, the transmission rod 401, the round hole 406 and the sliding hole 411, the transmission rod 401 and the limiting strips 402 will not affect the bevel gear 3 410 and the gear box 405 during rotation, and at the same time, the influence of the bevel gear 3 410 on the limiting strips 402 and the transmission rod 401 during rotation is also avoided, ensuring the reverse rotation stability of the stirring plate 1 414 and the stirring plate 2 7.
[0037] Specifically, the groove 413 has two grooves of the same size, symmetrically distributed along the vertical central axis of the sleeve 412. The insert block 416 has two inserts of the same size, with the end of the insert block 416 near the motor 3 fitting into the groove 413. The advantage is that, through the design of the groove 413 and the insert block 416, the groove 413 provides a clear installation guide for the insert block 416. The operator only needs to align the insert block 416 of the stirring plate 414 with the groove 413 of the sleeve 412 and insert it to achieve accurate installation of the stirring plate 414, thus improving the efficiency of later maintenance.
[0038] Example 2: Figure 3-9 As shown, this is an improvement on the previous embodiment.
[0039] Specifically, the transmission rod 401, bevel gear one 407, bevel gear three 410, and sleeve 412 are located on the same vertical horizontal line. The assembly hole 415 is adapted to the end of the transmission rod 401 near the discharge valve 2. The included angle between bevel gear one 407, bevel gear three 410, and bevel gear two 408 is 90°. The center lines of bevel gear three 410 and bevel gear two 408 are located on the same vertical line. The advantage is that, through the design of the assembly hole 415 and the transmission rod 401, when the sleeve 412 drives the stirring blade one 414 to rotate, the reverse rotation of the transmission rod 401 within the assembly hole 415 will not affect it due to the setting of the assembly hole 415, thus improving the stability of the component.
[0040] Specifically, the transmission rod 401 has a threaded groove 403 at one end near the discharge valve 2. A threaded sleeve 5 is threaded on the outer side of the threaded groove 403. A round rod 6 is fixedly installed at one end of the threaded sleeve 5 near the discharge valve 2. A stirring blade 7 is fixedly installed on the outer side of the round rod 6. The advantage is that, through the design of the threaded groove 403 and the threaded sleeve 5, after the threaded sleeve 5 is connected to the transmission rod 401, its end near the motor 3 will fit tightly against the bottom of the stirring blade 414, forming a positioning and clamping of the stirring blade 414 with the groove 413 of the sleeve 412. This not only restricts the vertical displacement of the stirring blade 414, but also does not affect its rotation, further enhancing the stability of the component.
[0041] Specifically, the outer diameter of the threaded sleeve 5 is larger than the inner diameter of the assembly hole 415, and the rotation direction of the output shaft of the motor 3 is opposite to the opening direction of the threaded groove 403. The advantage is that, through the setting of the motor 3 and the threaded groove 403, the rotation direction of the output shaft of the motor 3 is opposite to the opening direction of the threaded groove 403, so that when the transmission rod 401 rotates, the threaded sleeve 5 will be subjected to a continuous "tightening force", which further enhances the axial pressing effect on the stirring plate 414.
[0042] Working principle: During use, the motor 3 starts and the output shaft drives the transmission rod 401 in the stirring assembly 4 to rotate. The transmission rod 401 and the two symmetrical limiting strips 402 on the outside are located in the rotating hole 409 of the second bevel gear 408, which can drive the second bevel gear 408 to rotate synchronously. Since the second bevel gear 408 meshes with the first bevel gear 407 in the gear box 405, the rotation of the second bevel gear 408 will drive the first bevel gear 407 to rotate. The first bevel gear 407 meshes with the third bevel gear 410, thereby driving the third bevel gear 410 to rotate in the opposite direction. The sleeve 412 fixedly connected to the side of the third bevel gear 410 near the discharge valve 2 rotates synchronously with the third bevel gear 410. The sleeve 412, with its groove 413, facilitates the alignment of the first stirring blade 414. Simultaneously, the bevel gear 410 drives the first stirring blade 414 to rotate synchronously. The assembly hole 415 ensures that the first stirring blade 414 is not affected by the transmission rod 401. Furthermore, the threaded groove 403 allows for quick assembly with the threaded sleeve 5, the round rod 6, and the second stirring blade 7. After assembly, the threaded sleeve 5 and the groove 413 form a positioning clamp that stabilizes and limits the first stirring blade 414. During the mixing process, the first stirring blade 414 always stirs in the opposite direction to the second stirring blade 7. This completes the use of a mixing device for fish feed production.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mixing device for fish feed production, comprising a mixing tank (1), a discharge valve (2), and a motor (3), characterized in that: The output shaft of the motor (3) is fixedly mounted with a stirring assembly (4), and the stirring assembly (4) is provided with a threaded sleeve (5). The stirring assembly (4) includes a transmission rod (401), a limit strip (402) is fixedly installed on the outer side of the transmission rod (401), a gear box (405) is connected through the transmission rod (401), a round hole (406) is opened on the side of the gear box (405) near the motor (3), a rotating rod (417) is welded to the inner side of the gear box (405), a bevel gear one (407) rotates on the outer side of the rotating rod (417), a bevel gear two (408) is meshed on the end of the bevel gear one (407) near the motor (3), a rotating hole (409) is opened on the side of the bevel gear two (408) near the motor (3), and the bevel gear one (409) is meshed with the end of the bevel gear one (409) near the motor (3). 7) A bevel gear three (410) is meshed with one end near the discharge valve (2). The bevel gear three (410) has a sliding hole (411) at one end near the motor (3). A sleeve (412) is fixedly connected to one side of the bevel gear three (410) near the discharge valve (2). A groove (413) is opened at one end of the sleeve (412) near the discharge valve (2). A stirring plate one (414) is inserted and installed inside the sleeve (412). An assembly hole (415) is opened on one side of the stirring plate one (414) near the motor (3). A plug (416) is fixedly installed on the outside of the stirring plate one (414). The sleeve (412) and the gear box (405) are rotatably installed.
2. The mixing device for fish feed production according to claim 1, characterized in that: The transmission rod (401) has a threaded groove (403) at one end near the discharge valve (2). Two limit bars (402) of the same size are provided and are symmetrically distributed along the vertical central axis of the transmission rod (401). The two limit bars (402) and the transmission rod (401) are adapted to the rotating hole (409).
3. The mixing device for fish feed production according to claim 2, characterized in that: The inner diameter of the circular hole (406) and the sliding hole (411) are the same, and the width of the two limiting strips (402) and the transmission rod (401) is the same as the diameter of the sliding hole (411) of the circular hole (406).
4. The mixing device for fish feed production according to claim 1, characterized in that: The groove (413) has two of the same size and is symmetrically distributed along the vertical central axis of the sleeve (412). The insert (416) has two of the same size, and the end of the insert (416) near the motor (3) is adapted to the groove (413).
5. A mixing device for fish feed production according to claim 1, characterized in that: The transmission rod (401), bevel gear one (407), bevel gear three (410) and sleeve (412) are located on the same vertical horizontal line. The assembly hole (415) is adapted to the end of the transmission rod (401) near the discharge valve (2). The included angle between bevel gear one (407), bevel gear three (410) and bevel gear two (408) is 90°. The center lines of bevel gear three (410) and bevel gear two (408) are located on the same vertical line.
6. A mixing device for fish feed production according to claim 1, characterized in that: The transmission rod (401) has a threaded groove (403) at one end near the discharge valve (2). A threaded sleeve (5) is threaded on the outer side of the threaded groove (403). A round rod (6) is fixedly installed at one end of the threaded sleeve (5) near the discharge valve (2). A stirring plate (7) is fixedly installed on the outer side of the round rod (6).
7. A mixing device for fish feed production according to claim 1, characterized in that: The outer diameter of the threaded sleeve (5) is larger than the inner diameter of the assembly hole (415), and the rotation direction of the output shaft of the motor (3) is opposite to the opening direction of the threaded groove (403).