Splash-proof overhead stirrer

By introducing a sealing cap and lifting components into the top-mounted agitator, the problem of material splashing is solved, achieving efficient stirring and mixing, and improving the safety and flexibility of the device.

CN224127017UActive Publication Date: 2026-04-17NANJING ANJIEXIN BIOMEDICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING ANJIEXIN BIOMEDICAL CO LTD
Filing Date
2025-02-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing top-mounted mixers lack sealing components, which makes materials prone to splashing out during mixing, posing safety hazards and resulting in low mixing efficiency.

Method used

A splash-proof top-mounted stirrer was designed, which adopts a combination structure of a sealing cap and a sealing ring. Through the coordinated work of the lifting component and the stirring component, the sealing cap is lifted and the stirring rod moves in multiple directions, ensuring sealing and efficient mixing.

Benefits of technology

It effectively prevents material splashing, improves stirring effect and mixing efficiency, facilitates raw material addition, cleaning and maintenance, and enhances the safety and flexibility of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224127017U_ABST
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Abstract

The utility model relates to the technical field of stirring equipment, and discloses a splash-proof overhead stirrer which comprises a fixed seat and a mixing box fixedly mounted at the top of the fixed seat close to the front side, a sealing cover is attached to the top of the mixing box, and a stirring assembly is mounted above the middle of the top of the sealing cover. A lifting assembly is jointly mounted in the middle of the left side and the right side of the sealing cover, and the sealing cover and a sealing ring are matched with each other to play a role in sealing the mixing box, so that the phenomenon of splashing in the stirring process is effectively solved, and the stirring effect is improved; through mutual cooperation of a connecting rod, a moving block, a T-shaped sliding rod, an L-shaped rod, a moving seat, a threaded rod, a threaded pipe, a worm gear, a worm, a servo motor and a supporting plate, the sealing cover can be driven to be lifted, so that a worker can conveniently add raw materials into the mixing box and conveniently clean, maintain and detect the interior of the mixing box, and the working efficiency is improved. And the flexibility is higher.
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Description

Technical Field

[0001] This utility model relates to the technical field of pharmaceuticals and preparations, specifically to a splash-proof top-mounted stirrer. Background Technology

[0002] Top-mounted stirrers are a common material stirring and mixing device used in laboratories. They are most widely used in the fields of chemistry, chemical engineering, and medicine, and are required for mixing operations when preparing pharmaceuticals.

[0003] Existing top-mounted agitators lack a sealing component for the top of the mixing chamber, which makes it easy for materials to splash out due to centrifugal force during mixing. This not only wastes materials but also poses a certain danger. In addition, most agitators use a single mixing method, which affects the efficiency of material mixing and reduces the effectiveness of the device.

[0004] Therefore, we propose a splash-proof top-mounted mixer to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a splash-proof top-mounted stirrer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a splash-proof top-mounted stirrer, comprising a fixed base and a mixing chamber fixedly installed on the top of the fixed base near the front side, wherein a sealing cover is attached to the top of the mixing chamber, and a stirring assembly is installed above the middle of the top of the sealing cover, and a lifting assembly is installed together at the middle of the left and right sides of the sealing cover.

[0007] The lifting assembly includes connecting rods fixedly installed at the middle of the left and right sides of the sealing cover, respectively. A movable block is fixedly installed at the opposite end of the connecting rod. An L-shaped rod is fixedly installed at the middle of the rear side of the movable block. A movable seat is fixedly installed at the end of the L-shaped rod away from the adjacent movable block. A threaded rod is fixedly installed at the middle of the bottom of the movable seat. A threaded tube is threaded on the outer side of the threaded rod, and the lower end of the threaded tube is movably installed on the fixed seat.

[0008] Preferably, a T-shaped sliding rod is slidably installed through the middle of the movable block, and the lower end of the T-shaped sliding rod is fixedly installed on the fixed base.

[0009] Preferably, a worm gear is fixedly sleeved on the outer side of the threaded tube near the lower end, a worm is meshed on the rear side of the worm gear, and a servo motor is provided at the right end of the worm. The output end of the servo motor is fixedly connected to the right end of the worm, and a support plate is fixedly installed on the right side of the servo motor. The bottom of the support plate is fixedly installed on a fixed base.

[0010] Preferably, the stirring assembly includes a drive motor located above the center of the top of the sealing cover. The output end of the drive motor extends movably through to the bottom of the sealing cover and is fixedly mounted on a rotating shell. Several stirring rods are fixedly mounted at equal intervals on the front and rear sides of the rotating shell near the bottom. A reciprocating lead screw is fixedly sleeved on the output shaft of the drive motor. A lead screw nut is movably mounted on the outer side of the reciprocating lead screw. Movable plates are fixedly mounted on the front and rear sides of the lead screw nut. The bottom of the movable plates slides through to the inner cavity of the rotating shell. Two rack plates are provided on opposite sides of the movable plates near the bottom. The rack plates are arranged left and right, and several movable gears are meshed at equal intervals on opposite sides of the rack plates. Movable rods are fixedly installed through the middle of the movable gears. The front and rear ends of the movable rods extend movably through to the outer side of the rotating shell. Swing rods are fixedly sleeved on the outer side of the movable rods near the front and rear ends.

[0011] Preferably, a mounting bracket is fixedly installed on the top of the drive motor, and the bottom of the mounting bracket is fixedly installed on the sealing cover.

[0012] Preferably, a fixing block is fixedly installed on the opposite side of the rack plate near the top and bottom, and a fixing rod is fixedly installed at the middle of the front and rear sides of the upper fixing block, with the opposite ends of the fixing rods fixedly installed on adjacent movable plates.

[0013] Preferably, a sealing ring is fixedly installed at the bottom of the sealing cover, and a sealing groove is provided at the top of the mixing box, with the outer side of the sealing ring inserted into the inner cavity of the sealing groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The sealing cover and sealing ring work together to seal the mixing chamber, effectively preventing splashing during mixing and improving the mixing effect. The connecting rod, moving block, T-shaped sliding rod, L-shaped rod, moving seat, threaded rod, threaded pipe, worm gear, worm, servo motor and support plate work together to lift the sealing cover, making it easier for workers to add raw materials to the mixing chamber and also facilitating internal cleaning, maintenance and inspection, thus increasing flexibility.

[0016] 2. Through the cooperation of components such as drive motor, fixed frame, rotating shell, stirring rod, reciprocating screw, screw nut, moving plate, rack plate, fixed block, fixed rod, movable gear and swing rod, the stirring rod and swing rod can be driven to rotate, so as to stir and mix the raw materials. In addition, the swing rod can also be driven to swing back and forth up and down while rotating, which effectively improves the mixing efficiency, saves working time and has a better mixing effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the entire utility model;

[0018] Figure 2 This is a rear perspective view of the present invention;

[0019] Figure 3 This is a partial rear perspective view of the present invention;

[0020] Figure 4 This is a partial cross-sectional perspective view of the present invention.

[0021] Figure 5 This is a partial bottom-view sectional perspective view of the present invention;

[0022] Figure 6 This is a partial unfolded perspective view of the lead screw nut of this utility model;

[0023] Figure 7 This is a partial cross-sectional perspective view of the rotating shell of this utility model;

[0024] Figure 8 This is a partial three-dimensional view of the swing rod of this utility model;

[0025] Figure 9 For the present utility model Figure 8 Enlarged view of point A in the middle.

[0026] In the diagram: 1. Fixed base; 2. Mixing box; 3. Sealing cover; 31. Sealing ring; 4. Stirring assembly; 41. Drive motor; 411. Fixed frame; 42. Rotating shell; 43. Stirring rod; 44. Reciprocating screw; 45. Screw nut; 46. Moving plate; 47. Rack plate; 471. Fixed block; 472. Fixed rod; 48. Movable gear; 49. Swing rod; 5. Lifting assembly; 51. Connecting rod; 52. Moving block; 521. T-shaped sliding rod; 53. L-shaped rod; 54. Moving base; 55. Threaded rod; 56. Threaded pipe; 561. Worm gear; 562. Worm; 563. Servo motor; 564. Support plate. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please see Figure 1-9A splash-proof top-mounted agitator includes a fixed base 1 and a mixing chamber 2 fixedly installed on the top of the fixed base 1 near the front side. A sealing cover 3 is attached to the top of the mixing chamber 2, and an agitation component 4 is installed above the middle of the top of the sealing cover 3. Lifting components 5 are installed in the middle of the left and right sides of the sealing cover 3. The agitation component 4 is used to agitate and mix the raw materials in the mixing chamber 2, and the lifting component 5 can drive the sealing cover 3 to be lifted.

[0030] The lifting assembly 5 includes connecting rods 51 fixedly installed at the middle of the left and right sides of the sealing cover 3. A moving block 52 is fixedly installed at the opposite end of the connecting rod 51. An L-shaped rod 53 is fixedly installed at the middle of the rear side of the moving block 52. A moving seat 54 is fixedly installed at the end of the L-shaped rod 53 away from the adjacent moving block 52. A threaded rod 55 is fixedly installed at the middle of the bottom of the moving seat 54. A threaded tube 56 is installed on the outer thread of the threaded rod 55. The lower end of the threaded tube 56 is movably installed on the fixed seat 1, which can drive the sealing cover 3 to move upward and lift it, which is beneficial for the addition of raw materials and the cleaning and maintenance of the mixing box 2.

[0031] T-shaped sliding rods 521 are slidably installed through the middle of the upper part of the movable block 52, and the lower ends of the T-shaped sliding rods 521 are fixedly installed on the fixed base 1, which serves to guide and limit the movement of the movable block 52.

[0032] A worm gear 561 is fixedly sleeved on the outer side of the threaded tube 56 near its lower end. A worm 562 is meshed on the rear side of the worm gear 561. A servo motor 563 is provided at the right end of the worm 562. The output end of the servo motor 563 is fixedly connected to the right end of the worm 562. A support plate 564 is fixedly installed on the right side of the servo motor 563. The bottom of the support plate 564 is fixedly installed on the fixed base 1, which can provide power for the rotation of the threaded tube 56.

[0033] A sealing ring 31 is fixedly installed at the bottom of the sealing cover 3, and a sealing groove is provided at the top of the mixing box 2. The outer side of the sealing ring 31 is inserted into the inner cavity of the sealing groove, which can provide a seal between the sealing cover 3 and the mixing box 2.

[0034] In this embodiment: During use, the raw materials to be mixed can be added to the mixing box 2. After the addition is completed, the servo motor 563 can be started. When the servo motor 563 is running, it will drive the worm gear 562 to rotate. When the worm gear 562 rotates, it will drive the worm wheel 561 to rotate. When the worm wheel 561 rotates, it will drive the threaded tube 56 to rotate. When the threaded tube 56 rotates, it will drive the moving seat 54 to move downward through the threaded rod 55. When the moving seat 54 moves downward, it will drive the moving blocks 52 on both sides to move downward through the L-shaped rod 53. When the moving blocks 52 move downward, they will drive the sealing cover 3 to move downward through the adjacent connecting rod 51. When the sealing cover 3 moves downward, it will drive the sealing ring 31 to insert into the sealing groove. At this time, the servo motor 563 can be stopped.

[0035] Example 2

[0036] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 1 and Figure 3-9 The stirring assembly 4 includes a drive motor 41 positioned above the center of the top of the sealing cover 3. The output end of the drive motor 41 extends movably through to the bottom of the sealing cover 3 and is fixedly mounted on a rotating shell 42. Several stirring rods 43 are fixedly mounted at equal intervals on the front and rear sides of the rotating shell 42 near the bottom. A reciprocating lead screw 44 is fixedly sleeved on the output shaft of the drive motor 41. A lead screw nut 45 is movably mounted on the outer side of the reciprocating lead screw 44. Movable plates 46 are fixedly mounted on the front and rear sides of the lead screw nut 45, and the bottom of the movable plates 46 slides through into the inner cavity of the rotating shell 42. Two rack plates 47 are arranged on opposite sides of the movable plate 46 near the bottom. The rack plates 47 are arranged left and right, and several movable gears 48 are meshed at equal intervals on the opposite side of the rack plates 47. Movable rods are fixedly installed through the middle of the movable gears 48, and the front and rear ends of the movable rods extend through to the outside of the rotating shell 42. Swing rods 49 are fixedly sleeved on the outside of the movable rods near the front and rear ends, which can drive the stirring rod 43 and the swing rod 49 to rotate, so as to achieve stirring and mixing of raw materials. At the same time, the swing rod 49 can also swing up and down while rotating.

[0037] A mounting bracket 411 is fixedly installed on the top of the drive motor 41, and the bottom of the mounting bracket 411 is fixedly installed on the sealing cover 3, which serves to fix the drive motor 41.

[0038] A fixing block 471 is fixedly installed on the opposite side of the rack plate 47 near the top and bottom, and a fixing rod 472 is fixedly installed at the middle of the front and rear sides of the upper fixing block 471. The opposite ends of the fixing rods 472 are fixedly installed on the adjacent movable plates 46, which serves to drive the rack plate 47 and the movable plates 46 to move synchronously.

[0039] In this embodiment: After the sealing cover 3 stops moving, the drive motor 41 can be started. When the drive motor 41 is running, it will drive the rotating shell 42 to rotate. When the rotating shell 42 rotates, it will drive several stirring rods 43 and swing rods 49 to rotate synchronously, thereby achieving the mixing of raw materials. In addition, when the drive motor 41 rotates, it will also drive the reciprocating screw 44 to rotate. When the reciprocating screw 44 rotates, it will drive the screw nut 45 to move up and down back and forth. When the screw nut 45 moves up and down, it will drive the moving plate 46 to move up and down. When the moving plate 46 moves, it will drive the rack plates 47 on both sides to move up and down synchronously through the fixed rod 472 and the fixed block 471. When the rack plates 47 move up and down, they will drive several movable gears 48 on both sides to rotate back and forth in opposite directions. When the movable gears 48 rotate, they will drive the swing rods 49 on the front and rear sides to swing back and forth, thereby improving the mixing effect.

[0040] Working Principle: During use, the raw materials to be mixed can be added to the mixing box 2. After addition, the servo motor 563 will start. The servo motor 563 will drive the worm gear 562 to rotate, which in turn drives the worm wheel 561. The worm wheel 561, in turn, drives the threaded tube 56 to rotate. The rotation of the threaded tube 56, through the threaded rod 55, will cause the moving seat 54 to move downwards. The downward movement of the moving seat 54 will, through the L-shaped rod 53, cause the moving blocks 52 on both sides to move downwards. The downward movement of the moving blocks 52, through the adjacent connecting rod 51, will cause the sealing cover 3 to move downwards. When the sealing cover 3 moves downwards, it will cause the sealing ring 31 to insert into the sealing groove. At this point, the servo motor 563 will stop running. After the sealing cover 3 stops moving, the drive motor can be restarted. When the drive motor 41 is running, it drives the rotating shell 42 to rotate. When the rotating shell 42 rotates, it drives several stirring rods 43 and swing rods 49 to rotate synchronously, thereby achieving the mixing of raw materials. In addition, when the drive motor 41 rotates, it also drives the reciprocating screw 44 to rotate. When the reciprocating screw 44 rotates, it drives the screw nut 45 to move up and down back and forth. When the screw nut 45 moves up and down, it drives the moving plate 46 to move up and down. When the moving plate 46 moves, it drives the rack plates 47 on both sides to move up and down synchronously through the fixed rod 472 and the fixed block 471. When the rack plates 47 move up and down, they drive several movable gears 48 on both sides to rotate back and forth in opposite directions. When the movable gears 48 rotate, they drive the swing rods 49 on the front and rear sides to swing back and forth, thereby improving the mixing effect.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A splash-proof top-mounted mixer, comprising a fixed base (1) and a mixing chamber (2) fixedly mounted on the top of the fixed base (1) near the front side, characterized in that: The top of the mixing box (2) is fitted with a sealing cover (3), and a stirring assembly (4) is installed above the middle of the top of the sealing cover (3). Lifting assemblies (5) are installed together at the middle of the left and right sides of the sealing cover (3). The lifting assembly (5) includes connecting rods (51) fixedly installed at the middle of the left and right sides of the sealing cover (3). A moving block (52) is fixedly installed at the opposite end of the connecting rod (51). An L-shaped rod (53) is fixedly installed at the middle of the rear side of the moving block (52). A moving seat (54) is fixedly installed at the end of the L-shaped rod (53) away from the adjacent moving block (52). A threaded rod (55) is fixedly installed at the middle of the bottom of the moving seat (54). A threaded tube (56) is installed on the outer thread of the threaded rod (55). The lower end of the threaded tube (56) is movably installed on the fixed seat (1).

2. A splash-proof overhead mixer according to claim 1, characterized in that: T-shaped sliding rods (521) are slidably installed through the middle of the upper part of the movable block (52), and the lower ends of the T-shaped sliding rods (521) are fixedly installed on the fixed base (1).

3. A splash-proof overhead mixer according to claim 1, characterized in that: A worm gear (561) is fixedly sleeved on the outer side of the threaded tube (56) near the lower end. A worm (562) is meshed on the rear side of the worm gear (561). A servo motor (563) is provided on the right end of the worm (562). The output end of the servo motor (563) is fixedly connected to the right end of the worm (562). A support plate (564) is fixedly installed on the right side of the servo motor (563). The bottom of the support plate (564) is fixedly installed on the fixed seat (1).

4. A splash-proof overhead mixer according to claim 1, characterized in that: The stirring assembly (4) includes a drive motor (41) located above the center of the top of the sealing cover (3). The output end of the drive motor (41) extends movably through to the bottom of the sealing cover (3) and is fixedly mounted on a rotating shell (42). Several stirring rods (43) are fixedly mounted at equal intervals on the front and rear sides of the rotating shell (42) near the bottom. A reciprocating lead screw (44) is fixedly sleeved on the output shaft of the drive motor (41). A lead screw nut (45) is movably mounted on the outer side of the reciprocating lead screw (44). Movable plates (43) are fixedly mounted on the front and rear sides of the lead screw nut (45). 6), and the bottom of the movable plate (46) slides through and extends into the inner cavity of the rotating shell (42). Two rack plates (47) are provided on the opposite side of the movable plate (46) near the bottom. The rack plates (47) are arranged left and right, and several movable gears (48) are meshed at equal intervals on the opposite side of the rack plates (47). Movable rods are fixedly installed through the middle of the movable gears (48), and the front and rear ends of the movable rods extend through and extend to the outside of the rotating shell (42). Swing rods (49) are fixedly sleeved on the outside of the movable rods near the front and rear ends.

5. A splash-proof overhead mixer according to claim 4, wherein: The top of the drive motor (41) is fixedly mounted with a fixing bracket (411), and the bottom of the fixing bracket (411) is fixedly mounted on the sealing cover (3).

6. A splash-proof overhead mixer according to claim 4, wherein: The rack plate (47) has a fixing block (471) fixedly installed on the opposite side near the top and bottom, and a fixing rod (472) is fixedly installed at the middle of the front and rear sides of the upper fixing block (471). The opposite ends of the fixing rod (472) are fixedly installed on the adjacent movable plate (46).

7. A splash-proof overhead mixer according to claim 1, wherein: A sealing ring (31) is fixedly installed at the bottom of the sealing cover (3), and a sealing groove is provided at the top of the mixing box (2), with the outer side of the sealing ring (31) inserted into the inner cavity of the sealing groove.