Self-locking device for connection of reaction kettle and motor

Abstract

The utility model discloses a self-locking device for connecting a reaction kettle and a motor, which relates to the technical field of cell culture reaction kettles and comprises a motor, a shaft body, a flange, a base, a base, a fixing plate and a locking top. The base is fixed on a shaft shoulder of the shaft body through bolts, four limiting pins are welded in the base, the fixing plate is located in the base and matched with the limiting pins through limiting holes, and the lock top is connected with the machine base through bolts to form a cavity with the fixed height. A limiting hole in the fixing plate is matched with a limiting pin welded to the base, it is ensured that the fixing plate is kept stable in the operation process, self-locking of the lower protruding plate is achieved through extrusion force of a first spring and the fixing plate, the locking top is connected with the machine base through a bolt to form a cavity with the fixed height, and when an object is installed, the locking top is fixed to the lower protruding plate. And the part of the object enters the cavity due to compression of the spring I, so that self-locking is firmer.

Description

Technical Field

[0001] This utility model relates to the field of cell culture reactor technology, and in particular to a self-locking device for connecting a reactor and a motor. Background Technology

[0002] In existing mechanical connection designs, especially when it comes to the connection between motors and heavy equipment such as reactors, ensuring the safety, stability and convenience of the connection has always been a major challenge for engineers.

[0003] Traditional connection methods often rely on complex assembly steps and extensive manual adjustments, which not only increases operational difficulty but may also lead to insecure connections and safety hazards. Especially in fields with extremely high safety and reliability requirements, the demand for automatic locking devices that can achieve fast, accurate, and reliable operation is growing.

[0004] In view of this, a self-locking device for connecting the reactor and the motor is proposed. The device uses a limiting hole on the fixed plate to engage with a limiting pin welded to the base, ensuring the stability of the fixed plate during operation. The self-locking of the lower convex plate is achieved through the compressive force of a spring and the fixed plate. The lock top is bolted to the base to form a cavity with a fixed height. When an object is installed, part of the object is compressed into the cavity by the spring, making the self-locking more secure and thus solving the aforementioned problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a self-locking device for connecting a reaction vessel and a motor.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A self-locking device for connecting a reactor and a motor includes a motor, a shaft, a flange, a base, a fixing plate, and a locking top. The lower end of the shaft is connected to the motor and engages with the flange via a bearing. The base is fixed to the shoulder of the shaft with bolts. Four limiting pins are welded into the base. The fixing plate is located inside the base and engages with the limiting pins via limiting holes. The locking top is connected to the base with bolts to form a cavity of fixed height for accommodating a lower protruding plate provided on the lower side of the reactor. A spring is sleeved on the limiting pin, and the end of the spring contacts the lower side of the fixing plate. The self-locking function is achieved by the elastic force provided by the spring and the friction between the fixing plate and the limiting pin.

[0008] Preferably, the lock top is provided with multiple upper protrusions. After the lower protrusion enters the interior of the lock top, the lower protrusion is rotated to the lower side of the upper protrusion.

[0009] Preferably, a second spring is sleeved on the outer side of the limiting pin, and the second spring is located inside the first spring.

[0010] Preferably, the base and the fixing plate are respectively provided with a central hole one and a central hole two, and the upper end of the shaft passes through the central hole one and the central hole two.

[0011] Preferably, the shaft is made of nylon material, and its axial hole is connected to the motor via a pin.

[0012] Preferably, the flange is installed on the upper end of the motor, and the bearing is installed inside the flange.

[0013] Preferably, the base is mounted on the upper end of the flange and fixed with fixing bolts.

[0014] Preferably, the flange, shaft, base, base, fixing plate, lock top, and limit pin are all injection molded and made of stainless steel.

[0015] Preferably, the base and the fixing plate form a self-locking mechanism through a limiting pin and a spring. When the lower protrusion enters the base, the fixing plate fixes the upper protrusion under the action of the spring.

[0016] The positive and progressive effects of this utility model are as follows:

[0017] 1. This utility model ensures the stability of the fixed plate during operation by cooperating with the limiting hole on the fixed plate and the limiting pin welded on the base. The self-locking of the lower convex plate is achieved by the extrusion force of the spring and the fixed plate. The lock top is connected to the machine base by bolts to form a cavity with a fixed height. When an object is installed, part of the object is compressed into the cavity by the spring, making the self-locking more secure.

[0018] 2. This utility model uses two sets of springs to assist in fixing the plate by incorporating a second spring inside the first spring. The first spring and the second spring form a redundancy mechanism, which can avoid the situation where the self-locking effect is affected after one set of springs is damaged. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of a self-locking device connecting a reaction vessel and a motor according to an embodiment of the present invention;

[0021] Figure 3 This is an embodiment of the present utility model. Figure 2 Structural plan view;

[0022] Figure 4 This is an embodiment of the present utility model. Figure 3 Schematic diagram of cross-section along the AA structure;

[0023] Figure 5 This is a structurally exploded schematic diagram of a self-locking device connecting a reactor and a motor according to an embodiment of the present invention;

[0024] Figure 6 This is a top view of the base structure according to an embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the limiting pin and other structures in an embodiment of the present utility model;

[0026] Figure 8 This is a schematic diagram of the lock top structure according to an embodiment of the present utility model.

[0027] Figure label:

[0028] 1. Motor; 2. Flange; 3. Shaft; 4. Bearing; 5. Base; 6. Base; 7. Fixing plate; 8. Lock top; 9. Limit pin; 10. Upper convex plate; 11. Tank body; 12. Lower convex plate; 13. Spring 1; 14. Spring 2; 15. Fixing bolt; 16. Limit hole; 17. Center hole 1; 18. Center hole 2. Detailed Implementation

[0029] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Please refer to Figures 1-8 This utility model embodiment provides a self-locking device for connecting a reaction vessel and a motor, including a motor 1, a shaft 3, a flange 2, a base 5, a base 6, a fixing plate 7, and a locking top 8. The flange 2 is installed on the upper end of the motor 1, and the bearing 4 is installed inside the flange 2. The lower end of the shaft 3 is connected to the motor 1 by a pin and cooperates with the flange 2 by the bearing 4. In particular, the shaft 3 is made of nylon material, ensuring strength and lightweight. The pin connection between the motor 1 and the shaft 3 ensures the stability and reliability of the transmission, while facilitating disassembly and maintenance. The base 5 is installed on the upper end of the flange 2 and fixed by fixing bolts 15.

[0031] Flange 2 is installed on the upper end of motor 1, bearing 4 is installed inside flange 2, and the lower end of shaft 3 is connected to motor 1 and cooperates with flange 2 through bearing 4. Shaft 3 is made of nylon material, and its axial hole is connected to motor 1 through pin.

[0032] The base 6 is bolted to the shoulder of the shaft 3, and four limiting pins 9 are welded inside the base 6. The fixing plate 7 is located inside the base 6, and its limiting holes 16 engage with the limiting pins 9 to form a stable connection, preventing displacement due to vibration or external force. The base 6 and the fixing plate 7 each have a center hole 17 and a center hole 18, respectively, through which the upper end of the shaft 3 passes. The bolted connection facilitates the disassembly, replacement, and maintenance of the base 6 and the fixing plate 7, improving the maintainability of the device.

[0033] The locking top 8 is connected to the base 5 by bolts, forming a cavity with a fixed height. This cavity is used to accommodate the lower protruding plate 12 located on the lower side of the tank 11. The locking top 8 has multiple upper protruding plates 10. After the lower protruding plate 12 enters the interior of the locking top 8, the lower protruding plate 12 is rotated to be located below the upper protruding plate 10, thereby achieving locking. A spring 13 is sleeved on the limiting pin 9. The end of the spring 13 contacts the lower side of the fixing plate 7, forming a self-locking mechanism. When an object enters the base 6, the fixing plate 7 automatically adjusts its position and locks under the action of the spring 13. The cooperative design of the upper protruding plate 10 and the lower protruding plate 12 can effectively prevent the tank 11 from accidentally falling off, ensuring the safety of the connection.

[0034] To further enhance safety, a second spring 14 is fitted around the outer side of the limit pin 9, located inside the first spring 13. The second spring 14 and the first spring 13 together form a redundancy mechanism, ensuring that even if one set of springs fails, the other set can still maintain its self-locking function, thus ensuring the reliability of the system.

[0035] Flange 2, shaft 3, base 5, base 6, fixing plate 7, locking top 8, and limit pin 9 are all made using injection molding. Injection molding enables high-precision production of components, ensuring tight fit between components and improving overall performance. Stainless steel is selected to guarantee high strength, corrosion resistance, and long service life. Stainless steel has excellent mechanical properties and corrosion resistance, enabling it to adapt to harsh working environments (such as humid and corrosive media) and extend the service life of the device. Other parts, such as motor 1, bearing 4, and bolts used for connection, are selected according to appropriate models based on the application to meet diverse needs.

[0036] Spring 13 and Spring 24 can be made of higher strength, fatigue-resistant materials to extend their service life.

[0037] In summary, the working principle of the self-locking device for connecting the reactor and the motor in this embodiment of the present invention is as follows: the lower convex plate 12 of the tank body 11 is aligned with the cavity and pushed in, the fixing plate 7 is pressed and moves upward, compressing the first spring 13 and the second spring 14, the tank body 11 is rotated so that the lower convex plate 12 is aligned with the upper convex plate 10, and the spring rebound is used to achieve a firm lock. Through the dual design of the first spring 13 and the second spring 14, it is ensured that even if one set of springs fails, the other set can still maintain the locking function. The tank body 11 can be quickly unlocked by rotating it in the opposite direction. The operation is simple and efficient.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-locking device for connecting a reactor and a motor, comprising a motor (1), a shaft (3), a flange (2), a base (5), a base (6), a fixing plate (7), and a lock top (8), characterized in that: The lower end of the shaft (3) is connected to the motor (1) and cooperates with the flange (2) through the bearing (4). The base (6) is fixed to the shoulder of the shaft (3) by bolts. Four limit pins (9) are welded in the base (6). The fixing plate (7) is located in the base (6) and cooperates with the limit pins (9) through the limit hole (16). The lock top (8) is connected to the machine base (5) by bolts to form a cavity with a fixed height, which is used to accommodate the lower convex plate (12) set on the lower side of the tank (11). A spring (13) is sleeved on the limit pin (9). The end of the spring (13) contacts the lower side of the fixing plate (7). The self-locking function is achieved by the elastic force provided by the spring (13) and the friction between the fixing plate (7) and the limit pin (9).

2. The self-locking device for connecting the reactor and the motor according to claim 1, characterized in that: The lock top (8) is provided with multiple upper convex plates (10). After the lower convex plate (12) enters the lock top (8), the lower convex plate (12) is rotated to the lower side of the upper convex plate (10).

3. The self-locking device for connecting the reactor and the motor according to claim 2, characterized in that: The limiting pin (9) is fitted with a second spring (14), which is located inside the first spring (13).

4. The self-locking device for connecting the reactor and the motor according to claim 3, characterized in that: The base (6) and the fixing plate (7) are respectively provided with a central hole one (17) and a central hole two (18), and the upper end of the shaft (3) passes through the central hole one (17) and the central hole two (18).

5. The self-locking device for connecting the reactor and the motor according to claim 4, characterized in that: The shaft (3) is made of nylon material, and its axial hole is connected to the motor (1) by a pin.

6. The self-locking device for connecting the reactor and the motor according to claim 1, characterized in that: The flange (2) is installed on the upper end of the motor (1), and the bearing (4) is installed inside the flange (2).

7. The self-locking device for connecting the reactor and the motor according to claim 1, characterized in that: The base (5) is mounted on the upper end of the flange (2) and fixed by fixing bolts (15).

8. The self-locking device for connecting the reactor and the motor according to claim 1, characterized in that: The flange (2), shaft (3), base (5), base (6), fixing plate (7), lock top (8) and limit pin (9) are all injection molded and made of stainless steel.

9. The self-locking device for connecting the reactor and the motor according to claim 3, characterized in that: The base (6) and the fixing plate (7) form a self-locking mechanism through the limiting pin (9) and the spring (13). When the lower protrusion (12) enters the base (6), the fixing plate (7) fixes the upper protrusion (10) under the action of the spring (13).

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