Quantitative filling device for coenzyme Q10 soft capsules

Abstract

This utility model relates to the field of capsule filling technology and discloses a quantitative filling device for coenzyme Q10 soft capsules, including a frame and a mixing tank. A fan is fixedly connected to the top of the outer wall of the frame. One end of the fan is connected to an air inlet pipe, and the other end of the fan is connected to an air outlet pipe. One end of the air outlet pipe is connected to a generating box. A drying plate is fixedly connected to the inner wall of the generating box, and a box cover is fixedly connected to the top of the inner wall of the locking groove. In this utility model, based on the synergistic effect of gas circulation and physical adsorption, the fan generates negative pressure through the rotation of the blades, drawing in external humid gas through the air inlet pipe. After pressurization, the airflow is delivered to the generating box through the air outlet pipe. The drying plate inside the generating box uses a porous structure to adsorb moisture. The dehydrated dry gas is reintroduced into the frame through the exhaust pipe, forming a closed-loop purification cycle. This continuous operation reduces environmental humidity, maintains the dryness and stability inside the equipment, and prevents moisture from contaminating the medicine and causing quality defects.

Description

Technical Field

[0001] This utility model relates to the field of capsule filling technology, and in particular to a quantitative filling device for coenzyme Q10 soft capsules. Background Technology

[0002] Coenzyme Q10 soft capsules are a fat-soluble nutritional supplement. The liquid active ingredients are encapsulated in a gelatin shell for easy absorption and utilization by the human body. Its core ingredient, coenzyme Q10, has antioxidant and immune-boosting functions, making it suitable for daily use by those who maintain cardiovascular health. To ensure the precise and stable content of the effective ingredients in each capsule, a quantitative filling device has been developed to achieve uniform dispensing of the liquid through a high-precision metering pump and an automated control system. This technology can avoid human error, improve product consistency, and reduce production losses.

[0003] Traditional Coenzyme Q10 soft gel quantitative filling devices mainly rely on peristaltic pumps or piston structures to achieve material transportation. The principle is to draw the raw material from the storage tank to the dispensing head through mechanical drive, control the single filling volume by using preset stroke or time, and then inject the raw material into the soft gel shell under pressure to complete the packaging process. Although the device has basic quantitative function, in practical applications, the filling accuracy is significantly affected by the fluctuation of ambient temperature, changes in material viscosity can easily lead to dosage deviation, mechanical parts wear after long-term operation can cause leakage, and complex cleaning processes can cause cross-contamination of raw material residues.

[0004] Existing technologies optimize quantitative accuracy by introducing precision metering pumps and closed-loop feedback systems, employing high-sensitivity sensors to monitor filling pressure and flow rate in real time, and achieving dynamic compensation through programmed parameter adjustments. Simultaneously, the distribution head structure is optimized to reduce material adhesion to the wall. Such designs significantly improve filling efficiency and dosage consistency. However, in practical use, the condensation of water vapor on the inner wall of these devices due to temperature differences is not effectively addressed, leading to adhesion and deformation of the soft gel shell. Therefore, a quantitative filling device for Coenzyme Q10 soft gel is proposed to solve these problems. Utility Model Content

[0005] To overcome the above deficiencies, this invention provides a quantitative filling device for Coenzyme Q10 soft gel, which aims to improve the problem that water vapor condensation in the device is not effectively handled in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quantitative filling device for coenzyme Q10 soft gel, comprising a frame and a mixing tank, wherein a fan is fixedly connected to the top of the outer wall of the frame, one end of the fan is connected to an air inlet pipe, the other end of the fan is connected to an air outlet pipe, one end of the air outlet pipe is connected to a generating box, a drying plate is fixedly connected to the inner wall of the generating box, a locking groove is provided on the inner wall of the generating box, a box cover is fixedly connected to the top of the inner wall of the locking groove, an exhaust pipe is connected to the right side of the outer wall of the generating box, and an anti-sticking stirring mechanism is provided on the inner wall of the mixing tank to prevent the liquid from becoming too viscous.

[0007] As a further description of the above technical solution:

[0008] The anti-stick stirring mechanism includes a stirring rod, the bottom of the outer wall of the stirring rod is rotatably connected to the bottom of the inner wall of the stirring tank, a plurality of crossbars are fixedly connected to the outer wall of the stirring rod, a fixing button is fixedly connected to the opposite end of the plurality of crossbars, a brush plate is fixedly connected to the opposite side of the outer wall of the plurality of fixing buttons, and brush bristles are fixedly connected to the opposite side of the plurality of brush plates. The inner wall of the stirring tank is fixedly coated with polytetrafluoroethylene.

[0009] As a further description of the above technical solution:

[0010] A support column is fixedly connected to the top of the inner wall of the frame, and a reinforcing frame is fixedly connected to the top of the support column.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the reinforcement frame is fixedly connected to four corners with reinforcement plates, and the reinforcement plates are rounded.

[0013] As a further description of the above technical solution:

[0014] The bottom of the frame is fixedly connected to a pulley, and an inspection door is rotatably connected to the front of the outer wall of the frame. A viewing window is fixedly connected to the front of the outer wall of the inspection door, and a handle is fixedly connected to the front of the outer wall of the inspection door.

[0015] As a further description of the above technical solution:

[0016] A bracket is fixedly connected to the right side of the outer wall of the frame, and a controller is fixedly connected to the top of the outer wall of the bracket.

[0017] As a further description of the above technical solution:

[0018] A handle is fixedly connected to the right side of the outer wall of the frame, and a silicone pad is fixedly connected to the outer wall of the handle.

[0019] As a further description of the above technical solution:

[0020] The top of the mixing tank is fixedly connected to a lid, and the four corners of the outer wall of the mixing tank are fixedly connected to latches, and the four corners of the outer wall of the lid are fixedly connected to lock lugs.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, based on the synergistic effect of gas circulation and physical adsorption, the fan generates negative pressure through the rotation of the blades, drawing in external humid gas through the air inlet pipe. After pressurization, the airflow is transported to the generator box through the air outlet pipe. The internal drying plate uses a porous structure to adsorb moisture. The dehydrated dry gas is reintroduced into the frame through the exhaust pipe, forming a closed-loop purification cycle. The continuous operation reduces the ambient humidity, maintains the dryness and stability inside the equipment, and prevents moisture from contaminating the medicine and causing quality defects.

[0023] 2. In this utility model, the mixing tank contains the liquid to be treated through a closed cavity structure. The internal stirring rod rotates under the drive of a motor, and the crossbar on its outer wall applies shear force to the material to promote uniform mixing. The brush plate at the end of the crossbar drives the bristles to dynamically scrape the tank wall to prevent the material from sticking and clumping. The polytetrafluoroethylene coating on the inner wall reduces the risk of adhesion through its low surface energy characteristics. The system combines mechanical stirring and chemical protection to ensure efficient mixing and cleaning effects and achieve stable stirring function. Attached Figure Description

[0024] Figure 1 This is a perspective view of the quantitative filling device for coenzyme Q10 soft gel proposed in this utility model;

[0025] Figure 2 A perspective view of the access door of the quantitative filling device for coenzyme Q10 soft gel proposed in this utility model;

[0026] Figure 3 A partial view of the quantitative filling device for coenzyme Q10 soft gel proposed in this utility model;

[0027] Figure 4 This is an exploded view of the generating box of the quantitative filling device for coenzyme Q10 soft gel proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the anti-sticking stirring mechanism of the quantitative filling device for coenzyme Q10 soft gel proposed in this utility model.

[0029] Figure 6 This is a cross-sectional view of the stirring tank of the quantitative filling device for coenzyme Q10 soft gel proposed in this utility model.

[0030] Legend:

[0031] 1. Frame; 2. Anti-stick mixing mechanism; 201. Mixing rod; 202. Crossbar; 203. Brush plate; 204. Fixing button; 205. Brush bristles; 206. PTFE coating; 3. Fan; 4. Air inlet pipe; 5. Air outlet pipe; 6. Box cover; 7. Exhaust pipe; 8. Generator box; 9. Drying plate; 10. Locking groove; 11. Mixing tank; 12. Reinforcing plate; 13. Support column; 14. Reinforcing frame; 15. Pulley; 16. Controller; 17. Bracket; 18. Handle; 19. Silicone pad; 20. Locking lug; 21. Lock; 22. Bucket cover; 23. Inspection door; 24. Viewing window; 25. Handle. 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] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a quantitative filling device for coenzyme Q10 soft gel, comprising a frame 1 and a stirring tank 11. The stirring tank 11 contains the liquid to be processed through a closed cavity structure. A fan 3 is fixedly connected to the top of the outer wall of the frame 1. The frame 1 serves as a structural frame for supporting and fixing the various functional components within the device. One end of the fan 3 is connected to an air inlet pipe 4, which guides gas into the processing system through a pipeline structure. The fan 3 generates airflow power through the rotation of its blades. The other end of the fan 3 is connected to an air outlet pipe 5, which guides gas through a fixed... The airflow is controlled to enter the processing area. One end of the exhaust duct 5 is connected to a generator box 8. The generator box 8 removes moisture from the gas through built-in adsorption material. A drying plate 9 is fixedly connected to the inner wall of the generator box 8. The drying plate 9 in the generator box 8 adsorbs moisture from the gas through its porous structure. A locking groove 10 is opened on the inner wall of the generator box 8. A box cover 6 is fixedly connected to the top of the inner wall of the locking groove 10. The box cover 6 of the generator box 8 has a detachable design to ensure maintenance access for internal components. An exhaust duct 7 is connected to the right side of the outer wall of the generator box 8. The exhaust duct 7... Dry gas is re-vented into the frame 1. An anti-sticking stirring mechanism 2 is installed on the inner wall of the mixing tank 11 to prevent the liquid from becoming too viscous. A support column 13 is fixedly connected to the top of the inner wall of the frame 1. The support column 13 maintains the stability of the equipment through vertical load-bearing. A reinforcing frame 14 is fixedly connected to the top of the support column 13. The reinforcing frame 14 enhances the overall strength of the support structure through a ring-shaped wrapping. Reinforcing plates 12 are fixedly connected to the four corners of the inner wall of the reinforcing frame 14. Multiple reinforcing plates 12 are rounded. The reinforcing plates 12... The welding process enhances the deformation resistance of the connection parts. The top of the mixing tank 11 is fixedly connected to the lid 22. The four corners of the outer wall of the mixing tank 11 are fixedly connected to the latches 21. The latches 21 bear the insertion pressure of the buckle ring through the preset interlocking structure, forming a rigid connection to limit the displacement range of the moving parts and ensure the effectiveness of the locking mechanism. The four corners of the outer wall of the lid 22 are fixedly connected to the locking lugs 20. The locking lugs 20 form a closed structure with the corresponding buckle seat to ensure the stable connection of the connection parts in the locked state and prevent accidental disengagement.

[0034] Specifically, the mixing tank 11 contains the liquid to be treated through a closed cavity structure and maintains the airtightness of the mixing process. The frame 1, as the core load-bearing frame, fixes each functional component to a preset position through welding. The fan 3, fixedly connected to the top of its outer wall, generates directional airflow power through high-speed rotation of the blades. The air inlet end of the fan 3 is connected to the air inlet pipe 4 and introduces external gas into the treatment system through the pipeline structure. The exhaust end is connected to the air outlet pipe 5 and, through a specific angle arrangement design, accurately delivers the airflow to the target area. The generator box 8 connected to the end of the air outlet pipe 5 removes moisture from the gas through built-in adsorption material. The drying plate 9, fixedly installed on the inner wall of the generator box 8, enhances the moisture adsorption efficiency through its internal porous structure. The locking groove 10 opened on its top and... The lid 6 forms a detachable connection structure, ensuring access for maintenance and replacement of the drying plate 9 and other internal components. The lid 6 is secured with bolts for airtight sealing. The exhaust pipe 7, connected to the outer wall of the generator box 8 on the right side, uses a directional reflux design to reintroduce the dehydrated drying gas into the internal space of the frame 1, completing the gas purification cycle. The anti-sticking stirring mechanism 2, installed on the inner wall of the mixing tank 11, uses periodic rotation to break down the drug adhesion layer, preventing excessive viscosity of the material during mixing and thus improving processing efficiency. The support column 13, vertically welded to the inner wall of the top of the frame 1, bears the static load and dynamic stress of the mixing tank 11 and its auxiliary components through its column structure. The reinforcing frame 14 connected to its top uses a ring frame design to wrap around the top of the support column 13, increasing the contact surface. To enhance the torsional strength of the overall support structure, the reinforcing plates 12 welded at the four corners of the reinforcing frame 14 eliminate stress concentration points through arc-shaped edge treatment. Simultaneously, welding technology enhances the deformation resistance of the connection nodes between the support column 13 and the reinforcing frame 14. The lid 22, sealed at the top of the mixing tank 11, achieves rapid opening and closing through an edge locking system 21. The locking buckles 21 fixed at the four corners of its outer wall form a rigid connection with the locking lugs 20 through precision-machined interlocking grooves. When the locking lugs 20 are embedded in the pre-set slots of the locking buckles 21, the friction generated by the interlocking surfaces effectively limits the displacement of the lid 22 under vibration, ensuring the complete closure of the mixing tank 11 during mixing. The locking lugs 20, as the receiving component of the locking system 21, utilize a hinge structure... Fixed to the outer wall of the lid 22, the elastic element inside provides a buffer when the lid is fastened, reducing the wear of the locking structure by mechanical impact. The pulleys 15 set installed at the bottom of the frame 1 enable flexible steering when the whole device moves through the universal wheel structure. The bracket 17 is fixed to the side wall of the frame 1 by bolts. The intelligent controller 16 inside coordinates the speed of the fan 3 and the operating parameters of the anti-sticking stirring mechanism 2 through a preset program. The maintenance door 23 is set on the rear side wall of the frame 1 through a hinge, providing a maintenance access for the internal pipelines and electrical components. The viewing window 24 located on the front of the frame 1 uses a high light transmittance material to enable real-time observation of the mixing process. The handle 25 on its surface has an ergonomic groove design to reduce the hand load during opening and closing operations.

[0035] Reference Figure 1 , Figure 5 and Figure 6 One embodiment of this utility model provides: the anti-sticking stirring mechanism 2 includes a stirring rod 201, which drives the stirring component to operate by transmitting power through rotation. The bottom end of the outer wall of the stirring rod 201 is rotatably connected to the bottom of the inner wall of the stirring tank 11. Multiple crossbars 202 are fixedly connected to the outer wall of the stirring rod 201. The crossbars 202 achieve uniform mixing by periodically rotating and stirring the material. Each of the multiple crossbars 202 has a fixing button 204 fixedly connected to a distant end. The outer walls of the multiple fixing buttons 204 are far apart. A brush plate 203 is fixedly connected to one side of each brush plate 203. The fixing button 204 locks the brush plate 203 in a locking structure. Brush bristles 205 are fixedly connected to the opposite sides of the multiple brush plates 203. The brush plate 203 connects the fixing button 204 and the brush bristles 205 and transmits the rotational force. The brush bristles 205 are used to stir the medicine liquid and prevent it from being too viscous and adhering to the surface of the stirring tank 11. A polytetrafluoroethylene coating 206 is fixedly connected to the inner wall of the stirring tank 11. The polytetrafluoroethylene coating 206 reduces the adhesion of the medicine liquid through its surface anti-stick properties.

[0036] Specifically, the stirring rod 201 transmits power to various actuators of the mixing system through rotational motion to achieve the mixing function. Its outer bottom wall is rotatably connected to the bottom of the inner wall of the mixing tank 11 via a bearing structure. Multiple crossbars 202 are uniformly welded circumferentially to the outer wall of the stirring rod 201. As the crossbars 202 rotate with the main shaft, they periodically shear to break up material agglomerates, promoting uniform component distribution. Fixing buttons 204 welded to the ends of each crossbar 202 precisely position the brush plate 203 at a preset angle via threaded fastening. 3 acts as an intermediate connector to transmit rotational torque to the cleaning unit. The bristles 205 densely planted on its outer surface dynamically scrape the inner wall of the mixing tank 11 through flexible contact, effectively peeling off residual medicine adhering to the tank wall to prevent clumping. The polytetrafluoroethylene coating 206 covering the inner wall of the mixing tank 11 forms a physical isolation layer through its low surface energy characteristics, which significantly reduces the adhesion of high-viscosity medicine to the metal surface. The composite anti-sticking system formed by the coating and the bristles 205 ensures mixing efficiency through a dual mechanism of mechanical cleaning and chemical protection.

[0037] Reference Figure 1 , Figure 2 and Figure 3In one embodiment of this utility model: a pulley 15 is fixedly connected to the bottom of the frame 1. The pulley 15 at the bottom of the frame 1 moves the device through a rolling mechanism. A maintenance door 23 is rotatably connected to the front side of the outer wall of the frame 1. The maintenance door 23 provides an internal maintenance entrance for the equipment by opening and closing through a hinge. A viewing window 24 is fixedly connected to the front side of the outer wall of the maintenance door 23. The viewing window 24 is made of transparent material to allow real-time observation of the operating status. A handle 25 is fixedly connected to the front side of the outer wall of the maintenance door 23. The handle 25 on the maintenance door 23 has a groove design to assist the operator in opening and maintaining the door. Door 23, a bracket 17 is fixedly connected to the right side of the outer wall of the frame 1. The bracket 17 prevents the controller 16 from shaking or shifting through the support structure. The controller 16 is fixedly connected to the top of the outer wall of the bracket 17. The controller 16 coordinates the operation logic of each component through program instructions. A handle 18 is fixedly connected to the right side of the outer wall of the frame 1. The handle 18 provides an operating force point, making it easy for users to open and close the material drawer smoothly. A silicone pad 19 is fixedly connected to the outer wall of the handle 18. The silicone pad 19 on the handle 18 increases the friction of the hand contact surface and buffers mechanical vibration through elastic deformation and damping characteristics.

[0038] Specifically, pulleys 15 are bolted to the bottom of the frame 1, and the pulleys 15 achieve the flexibility of overall equipment movement through a roller mechanism. The front outer wall of the frame 1 is connected to the maintenance door 23 via a hinge structure. The maintenance door 23 provides a maintenance passage for internal circuit components and mechanical parts through its opening and closing design. The viewing window 24 embedded in its surface is made of high-transmittance tempered glass, allowing operators to observe the equipment's operating status and internal material dynamics in real time. The handle 25 welded to the front of the maintenance door 23 conforms to the contour of the human hand through an arc-shaped groove, reducing the force required to open the door. The right side of the frame 1... The bracket 17 welded to the wall forms a stable support platform through an L-shaped metal bracket. The top of the bracket is fixed to the controller 16 by anti-slip bolts. The controller 16 coordinates the speed of the fan 3 and the start and stop sequence of the stirring mechanism through a preset program logic. The handle 18 welded to the middle of the outer wall on the right side of the frame 1 provides a force fulcrum through a U-shaped structure, making it easy for users to smoothly pull out the material storage drawer. The silicone pad 19 covering the surface of the handle 18 is made of a highly elastic composite material. It utilizes its deformation recovery characteristics to enhance the grip friction of the hand and absorb the vibration energy transmitted to the handle 18 when the equipment is running, reducing noise and fatigue during operation.

[0039] Working principle: First, based on the synergistic effect of gas circulation and physical adsorption, the fan 3 generates negative pressure by rotating its blades, drawing in external humid gas through the air inlet pipe 4. The pressurized airflow is then transported to the generator box 8 through the air outlet pipe 5. The drying plate 9 installed inside the generator box 8 uses its porous structure to efficiently adsorb water molecules in the gas. The dried gas, after dehydration, is reintroduced into the frame 1 through the exhaust pipe 7, forming a closed-loop purification cycle. This system continuously reduces the ambient humidity, ensuring that the equipment maintains a dry and stable working state, while preventing moisture from contaminating the medicine and causing quality defects.

[0040] Furthermore, the mixing tank 11 contains the liquid to be treated through a closed cavity structure. The stirring rod 201 installed inside is driven by a motor to rotate. The crossbars 202 evenly distributed on the outer wall of the stirring rod 201 apply shear force to the material during rotation, promoting uniform mixing of the components. The brush plate 203 fixed at the end of the crossbar 202 drives the densely arranged bristles 205 to dynamically scrape the tank wall, preventing the material from adhering and clumping. The polytetrafluoroethylene coating 206 covering the inner wall of the mixing tank 11 further reduces the risk of material adhesion through its low surface energy characteristics. The entire system ensures material mixing efficiency and cleaning effect by combining mechanical stirring with chemical protection, achieving a highly efficient and stable stirring function.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A quantitative filling device for coenzyme Q10 soft gels, comprising a frame (1) and a mixing tank (11), characterized in that: A fan (3) is fixedly connected to the top of the outer wall of the frame (1). One end of the fan (3) is connected to an air inlet pipe (4), and the other end of the fan (3) is connected to an air outlet pipe (5). One end of the air outlet pipe (5) is connected to a generating box (8). A drying plate (9) is fixedly connected to the inner wall of the generating box (8). A locking groove (10) is opened on the inner wall of the generating box (8). A box cover (6) is fixedly connected to the top of the inner wall of the locking groove (10). An exhaust pipe (7) is connected to the right side of the outer wall of the generating box (8). An anti-sticking stirring mechanism (2) is provided on the inner wall of the stirring tank (11). The anti-sticking stirring mechanism (2) is used to prevent the liquid medicine from being too viscous and adhering to the surface of the tank wall.

2. The quantitative filling device for coenzyme Q10 soft gel according to claim 1, characterized in that: The anti-stick stirring mechanism (2) includes a stirring rod (201). The bottom of the outer wall of the stirring rod (201) is rotatably connected to the bottom of the inner wall of the stirring tank (11). A plurality of crossbars (202) are fixedly connected to the outer wall of the stirring rod (201). A fixing button (204) is fixedly connected to the opposite end of the plurality of crossbars (202). A brush plate (203) is fixedly connected to the opposite side of the outer wall of the plurality of fixing buttons (204). Brush bristles (205) are fixedly connected to the opposite side of the plurality of brush plates (203). A polytetrafluoroethylene coating (206) is fixedly connected to the inner wall of the stirring tank (11).

3. The quantitative filling device for coenzyme Q10 soft gel according to claim 1, characterized in that: A support column (13) is fixedly connected to the top of the inner wall of the frame (1), and a reinforcing frame (14) is fixedly connected to the top of the support column (13).

4. The quantitative filling device for coenzyme Q10 soft gel according to claim 3, characterized in that: The inner wall of the reinforcing frame (14) is fixedly connected with reinforcing plates (12) at the four corners, and the multiple reinforcing plates (12) are rounded.

5. The quantitative filling device for coenzyme Q10 soft gel according to claim 1, characterized in that: The bottom of the frame (1) is fixedly connected to a pulley (15), and the front side of the outer wall of the frame (1) is rotatably connected to an inspection door (23). The front side of the outer wall of the inspection door (23) is fixedly connected to a viewing window (24), and the front side of the outer wall of the inspection door (23) is fixedly connected to a handle (25).

6. The quantitative filling device for coenzyme Q10 soft gel according to claim 1, characterized in that: A bracket (17) is fixedly connected to the right side of the outer wall of the frame (1), and a controller (16) is fixedly connected to the top of the outer wall of the bracket (17).

7. The quantitative filling device for coenzyme Q10 soft gel according to claim 1, characterized in that: A handle (18) is fixedly connected to the right side of the outer wall of the frame (1), and a silicone pad (19) is fixedly connected to the outer wall of the handle (18).

8. The quantitative filling device for coenzyme Q10 soft gel according to claim 1, characterized in that: The top of the mixing tank (11) is fixedly connected to a lid (22), and the four corners of the outer wall of the mixing tank (11) are fixedly connected to a buckle (21), and the four corners of the outer wall of the lid (22) are fixedly connected to a lock lug (20).

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