A new type of lubricating grease filling device

Abstract

The utility model relates to a novel lubricating grease filling device belongs to equipment lubricating tool technical field, the utility model discloses an oil injection subassembly, oil cylinder seat, push oil subassembly, handle mechanism and grease filling cylinder, the grease filling cylinder sets up in the oil cylinder seat, is equipped with the piston cover in the grease filling cylinder, and the left end of grease filling cylinder is connected with the oil injection subassembly, and push oil subassembly sets up in the right end of oil cylinder seat and grease filling cylinder, handle mechanism sets up between push oil subassembly and grease filling cylinder, the utility model can realize the efficient, clean filling and filling of lubricating grease, and the structure is exquisite light and handy, and the operation is simple and flexible.

Description

Technical Field

[0001] This utility model belongs to the field of equipment lubrication tool technology, specifically, it relates to a novel grease filling device. Background Technology

[0002] Equipment lubrication is a crucial part of equipment maintenance. Scientific and reasonable lubrication management can effectively prevent equipment failures and reduce component wear.

[0003] In industrial production, most rotating parts of mechanical equipment, such as bearings and bushings, require regular lubrication to ensure their safe and stable operation. This is especially true for high-speed equipment like electric motors, fans, and speed reducers, where grease application to bearings is more frequent and the requirements are more stringent. Currently, grease application in mechanical equipment is largely done manually using manual grease guns. Although newer lubrication tools such as electric, pneumatic, and foot-operated grease guns are used in some companies in certain sectors, their application is limited due to their higher manufacturing and maintenance costs, and inconvenience in use and portability.

[0004] Manual grease guns, as a traditional tool for adding grease to mechanical equipment, have many advantages such as low cost, simple operation, and convenient use and carrying. They are widely used in many enterprises in various industries. However, there are still some shortcomings in actual use, which have been criticized and caused many users great trouble and suffering: 1) Inconvenient and troublesome grease filling. 1) When filling grease, the cap of the oil can must be unscrewed first, and the lever pulled out. At the same time, the lever locking plate must be pressed down to lock the lever. Then, grease must be manually added into the oil can little by little until the entire oil can is filled with grease. After that, the cap is screwed back on and the lever is unlocked. The filling speed is slow and the filling efficiency is low. 2) During the manual filling of grease, air is easily introduced into the oil can, causing incomplete filling and thus producing air bubbles and cavitation. Therefore, it is necessary to repeatedly pull the lever to mix the air and grease to reduce air bubbles, but the effect is often not ideal. 3) During the filling process, it is necessary to open the vent screw on the cap in real time or even repeatedly rotate the threads connecting the oil gun barrel and the cap while pressing the lever to vent the air. 4) Currently, the grease products sold on the market are all stored in drums. 5) The grease gun canister is designed to be used in conjunction with the surrounding environment. Therefore, when filling the grease gun canister with grease, dust, soda, and other substances can easily be introduced into the grease, causing grease contamination and affecting the quality and lubrication effect of the grease; 6) The grease gun canister and lever are designed to be used in a non-separable manner, which makes it difficult to adapt to different types or qualities of grease. Alternatively, the grease gun canister may need to be cleaned of any residual grease before use, which is very inconvenient; 7) The grease gun canister volume does not match the volume of the drum or bagged grease sold on the market. Improper storage of the remaining grease can easily lead to contamination or deterioration; 8) During the filling process, grease can easily get on the grease gun canister, handle, and personnel's gloves and sleeves, resulting in grease waste and contamination of the personnel's clothing. Summary of the Invention

[0005] In order to overcome the problems existing in the background technology, this utility model provides a novel grease filling device, which can realize efficient and clean filling and injection of grease, and has a compact and lightweight structure and simple and flexible operation.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] The novel grease filling device includes an oil injection assembly, an oil cylinder seat, an oil pushing assembly, a handle mechanism, and a grease filling cylinder; the grease filling cylinder is disposed inside the oil cylinder seat; a piston cover is provided inside the grease filling cylinder; the left end of the grease filling cylinder is connected to the oil injection assembly; the oil pushing assembly is disposed at the right end of the oil cylinder seat and the grease filling cylinder; and the handle mechanism is disposed between the oil pushing assembly and the grease filling cylinder.

[0008] Preferably, the oil-pushing assembly includes a top plate, a push rod, a push plate, and a pull-out locking plate; the top plate is a flange structure and is connected to the left end of the push rod; a push spring and a locking spring are sleeved on the push rod; the locking spring is located to the right of the push spring; the push plate and the pull-out locking plate are each provided with through holes, and the push plate and the pull-out locking plate are slidably connected to the push rod through the through holes; the left end face of the push plate abuts against the right end of the push spring; the left end face of the pull-out locking plate abuts against the right end of the locking spring.

[0009] Preferably, the push rod is a "J"-shaped round rod structure.

[0010] Preferably, the handle mechanism includes a handle, a trigger, a trigger linkage pin, a push plate top pin, a connecting plate, and a handle base; the connecting plate is connected between the handle base and the handle; the trigger is rotatably connected to the connecting plate via the trigger linkage pin; the handle base is a flange structure with a push rod through hole A in the center and bolt holes on the outer periphery; the handle has a push rod through hole B directly opposite to push rod through hole A; the push rod passes through push rod through holes A and B and connects to the handle mechanism, wherein a push spring is disposed between the handle base and the push plate; a locking spring is disposed between the handle and the pull locking plate; the outer side of the handle has a "T"-shaped locking plate latch, and the front end of the pull locking plate has a latch, through which the pull locking plate connects to the locking plate latch; the left end face of the handle trigger has a slot; the rear end of the push plate is inserted into the slot; the inner side of the handle has a push plate stop tongue, which is disposed on the right side of the push plate.

[0011] Preferably, the inner side of the connecting plate is provided with a connecting rod pin hole plate; the trigger is rotatably connected to the connecting rod pin hole plate via a trigger connecting rod pin.

[0012] Preferably, the grease filling cylinder is a cylindrical structure, including a cylinder and a piston cover; the piston cover is disposed inside the cylinder, and a sealing gasket is provided on the contact surface between the piston cover and the cylinder; an oil outlet is provided at the left end of the cylinder, and an oil outlet cover is provided for the oil outlet; a retaining ring is provided at the right end of the cylinder.

[0013] Preferably, the oil cylinder seat includes a front cover, a cylinder body, and a rear cover; the front cover and the rear cover are respectively located at the left and right ends of the cylinder body; the front cover has an oil nozzle clearance opening; the rear cover has a push rod through hole C and a connecting threaded hole; the cylinder body is formed by two concentric arc plates; the grease filling cylinder is located inside the oil cylinder seat, and the oil nozzle is located on the side where the front cover is located, and leaks out from the oil nozzle clearance opening of the front cover.

[0014] Preferably, the oil filling assembly includes an oil filler nozzle, a flexible oil pipe, and a swivel nut; the flexible oil pipe is connected between the oil filler nozzle and the swivel nut.

[0015] The beneficial effects of this utility model are:

[0016] The grease filling device of this utility model has a compact and lightweight structure, is simple and quick to operate, and the push rod, push plate, spring, pull lock plate, push plate top pin and trigger linkage pin can all be made of high strength rod-shaped or plate-shaped structures to meet the strength requirements and thus meet the usage needs.

[0017] The grease filling device of this utility model includes: 1) the structure of the oil pushing assembly, 2) the structure of the pushing device, 3) the setting of the piston cover of the grease filling cylinder, in conjunction with: 4) the structure of the push plate and the piston cover, 5) the cooperation between the push plate and the pushing spring, 6) the structural cooperation between the push plate top pin and the push plate, 7) the cooperation between the pull locking plate and the locking spring, 8) the connection between the trigger connecting rod pin and the trigger pin shaft, and 9) the connection relationship between the trigger and the handle. These nine components work together to achieve rapid and efficient filling of grease into rotating parts such as bearings and bushings of mechanical equipment.

[0018] The components of this utility model, including the oil filling assembly, oil cylinder seat, grease filling cylinder, oil pushing assembly, and handle mechanism, are closely fitted together and have a compact structure. During operation, simply insert the oil filling nozzle into the grease nipple on the mechanical equipment and pull the trigger to quickly add grease. This solves the technical shortcomings of current manual grease guns for adding grease, such as cumbersome filling, difficulty in venting, low filling efficiency, and easy grease contamination.

[0019] This utility model features a detachable grease filling cylinder and grease pushing assembly (push rod) design, offering strong versatility. The same device can be used to add different types and qualities of grease. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the oil injection assembly structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the oil cylinder seat structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the oil-dispensing component structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the handle mechanism structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the grease filling cylinder structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the handle structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the trigger structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the pusher structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the pull-out locking plate structure of the present invention;

[0030] Figure 11 This is a schematic diagram of the connecting screw assembly structure of the present invention;

[0031] Figure 12 This is a schematic diagram of the assembly of the oil-dispensing component and the handle structure of the present invention;

[0032] Figure 13 This is a schematic diagram illustrating the usage state of the present invention;

[0033] In the diagram, 1-oil filling assembly; 11-oil filler nozzle; 12-flexible oil pipe; 13-union nut; 2-oil cylinder seat; 21-front end cap; 22-cylinder body; 23-rear end cap; 24-oil filler nozzle clearance opening; 25-threaded hole; 3-oil pushing assembly; 31-top plate; 32-push rod; 33-fixing nut; 34-push spring; 35-push plate; 36-locking spring; 37-pull-out locking plate; 38-bayonet; 4-handle mechanism; 41-handle; 42-... - Trigger; 43- Locking tab; 44- Push tab stop; 45- Trigger linkage pin; 46- Push tab top pin; 47- Linkage pin hole plate; 48- Handle base; 49- Connecting plate; 5- Grease filling cylinder; 51- Cylinder; 52- Piston cover; 53- Sealing gasket; 54- Cylinder cover; 55- Retaining ring; 56- Oil outlet; 6- Connecting screw assembly; 61- Push rod through hole A; 62- Push rod through hole B; 63- Push rod through hole C; 65- Slot. Detailed Implementation

[0034] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0035] In the description of this utility model, unless otherwise stated, the terms "inner", "upper", "lower", etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] like Figure 1-13 As shown, the novel grease filling device includes an oil filling assembly 1, an oil cylinder seat 2, an oil pushing assembly 3, a handle mechanism 4, and a grease filling cylinder 5.

[0038] The grease filling assembly 1 includes a grease nozzle 11, a flexible oil tube 12, and a swivel nut 13. The flexible oil tube 12 connects the grease nozzle 11 and the swivel nut 13. The swivel nut 13 is connected to the grease filling cylinder 5. During grease filling, the grease nozzle 11 engages with the grease fitting on the mechanical equipment, allowing the lubricating oil in the grease filling cylinder 5 to be added to the mechanical equipment through the flexible oil tube 12 and the grease nozzle 11. This solves the technical shortcomings of current manual grease gun grease filling methods, such as cumbersome filling, difficulty in venting, low filling efficiency, and easy grease contamination. Note: The grease nozzle 11 is a flat grease gun nozzle structure, but it can also be replaced with a pointed nozzle to meet the grease filling needs of different mechanical equipment.

[0039] The oil cylinder holder 2 includes a front cover 21, a cylinder body 22, and a rear cover 23. The front cover 21 and the rear cover 23 are respectively located at the left and right ends of the cylinder body 22. The front cover 21 has a U-shaped oil nozzle clearance opening 24; the rear cover 23 has a push rod passage hole C63 and a connecting thread hole 25. The cylinder body 22 is formed by two concentric arc plates, and the grease filling cylinder 5 is located inside the oil cylinder holder 2.

[0040] The grease filling cylinder 5 is a cylindrical structure, including a cylinder 51 and a piston cover 52. The piston cover 52 is located inside the cylinder 51 and can slide along the inner wall of the cylinder 51. A sealing gasket 53 is provided on the contact surface between the piston cover 52 and the cylinder 51. An oil outlet 56 is provided at the left end of the cylinder 51. The oil outlet 56 has external threads that can be threaded to the snap nut 13. The oil outlet 56 is also equipped with an oil outlet cap 54. When not connected to the snap nut 13, the oil outlet 56 is sealed by the oil outlet cap 54. A retaining ring 55 is also provided at the right end of the cylinder 51 to limit the piston cover 52 and prevent the piston cover 52 from slipping out of the cylinder 51. The cylinder 51 is concentric with the cylinder body 22 and is fitted inside the cylinder body 22. The oil outlet 56 is located on the side where the front cover 21 is located and leaks out from the oil outlet clearance opening 24 of the front cover 21.

[0041] The oil-pushing assembly 3 includes a top plate 31, a push rod 32, a push plate 35, and a pull-out locking plate 37. The left end of the push rod 32 has an external thread. The top plate 31 is a flange structure, with a through hole in its center for connection to the push rod 32. The left end of the push rod 32 passes through the through hole of the top plate 31 and is locked to the top plate 31 with a fixing nut 33 (GB / T6170-2000 hexagonal nut). A push spring 34 and a locking spring 36 are fitted onto the push rod 32, with the locking spring 36 located to the right of the push spring 34. The push plate 35 and the pull-out locking plate 37 each have through holes, allowing for slidable connection to the push rod 32. The left end face of the push plate 35 abuts against the right end of the push spring 34; the left end face of the pull-out locking plate 37 abuts against the right end of the locking spring 36 (see attached diagram). Figure 4 (Directional description). Push rod 32 passes through push rod through hole C63 of rear end cover 23. Top plate 31 is located between piston cover 52 and rear end cover 23. Push rod 32 drives top plate 31 to move, thereby pushing piston cover 52 to move. Push rod 32 has a "J" shaped round rod structure with a hook at the right end for easy pulling.

[0042] The handle mechanism 4 includes a handle 41, a trigger 42, a trigger linkage pin 45, a push plate top pin 46, a connecting plate 49, and a handle base 48. The connecting plate 49 connects the handle base 48 and the handle 41.

[0043] The handle base 48 has a flange structure with a push rod passage hole A61 in the center and bolt holes on the outer periphery for connection with the rear end cover 23. The handle base 48 and the outer end cover 32 are connected by a set of connecting screws 6. The handle 41 has a push rod passage hole B62 opposite to the push rod passage hole A61. The push rod 32 passes through the push rod passage hole A61, the push spring 34, the push plate 35, the push rod passage hole B62, and the pull locking plate 37 in sequence to connect with the handle mechanism 4. The push spring 34 is located between the handle base 48 and the push plate 35.

[0044] The connecting plate 49 is provided with a connecting rod pin hole plate 47 for connecting the trigger 42, and the trigger 42 has two pin holes (as shown in the attached figure). Figure 8 The trigger linkage pin 45 is inserted into the lower pin hole and connected to the linkage pin hole plate 47, and the push plate top pin 46 is inserted into the upper pin hole (the terms "upper" and "lower" are used in conjunction with the attached pin hole). Figure 8 (Describing the orientation), the trigger 42 can rotate via the trigger linkage pin 45, and the push plate top pin 46 limits the clockwise rotation angle and position of the trigger 42 under the limit of the handle 41.

[0045] Push plate 35 is a plate-like structure that is wider at the left end and narrower at the right end (the "left" and "right" here are for illustrative purposes only). Figure 9The orientation is described below, with the push plate 35 divided into "wide section" and "narrow section" (the left end of the handle trigger 42 is provided with a slot 65 (as shown in the attached image)). Figure 8 The narrow section of the push plate 35 is inserted into the slot 65, and its right end face abuts against the push plate top pin 46 (the orientation here is "right" for illustrative purposes). Figure 1 (The location is described). The inner side of the handle 41 is provided with a push plate stop tongue 44, which is located on the right end face of the wide section of the push plate 35. During the oil filling operation, the push plate top pin 46 presses down on the narrow section of the push plate 35, and the push plate stop tongue 44 limits the rotation angle of the push plate 35. When the push plate 35 is pressed down, it can push the push rod 32 down. The force exerted by the push plate 35 on the push rod 32, i.e., the thrust, can be the contact friction between the through hole of the push plate 35 and the outer surface of the push rod 32, or a retaining ring larger than the through hole of the push plate 35 (not shown in the attached figure) can be fixed on the outer circumference of the push rod 32 (close to the lower part of the push plate 35). When the push plate 35 is pressed down, it drives the retaining ring and then drives the push rod 32 down. The push rod 32 is pushed by the top pressure, thereby increasing the pushing force of the push rod 32 and improving the filling speed and efficiency.

[0046] The pull-out locking plate 37 has a plate-like structure with a latch 38. A locking tab 43 is located on the right side of the handle 41. The locking tab 43 has a "T"-shaped structure. The latch 38 of the pull-out locking plate 37 engages with the vertical section of the locking tab 43 and is limited by the horizontal section of the locking tab 43. A locking spring 36 is sleeved on the push rod 32. One end of the locking spring 36 abuts against the right end face of the handle 41, and the other end abuts against the left end face of the pull-out locking plate 37, limiting the clockwise rotation angle and displacement of the pull-out locking plate 37. Under the pressure of the locking spring 36 and the limitation of the locking tab 43, an angle is formed between the pull-out locking plate 37 and the push rod 32. The upper and lower arc surfaces of the through hole of the pull-out locking plate 37 rub against the outer surface of the push rod 32, locking the push rod 32 and preventing the push rod 32 from rebounding when the trigger 42 is released due to the expansion of the compressed grease in the cylinder 52.

[0047] The working process of this utility model (Note: In this description, the oil injection component 1 is at the bottom and the oil pushing component 3 is at the top):

[0048] When oiling is required, connect the oil filler 11 to the oil filler on the mechanical equipment, hold the handle 41 and the trigger 42, press the trigger 42 up, the pusher pin 46 moves down, pushes the narrow section of the pusher 35 to tilt, the pusher 35 is pressed down, the pusher 35 drives the push rod 32 to move down, and then drives the top plate 31 to push the piston cover 52 down, so that the grease in the cylinder 52 is added to the mechanical equipment through the oiling assembly 1.

[0049] Disassembly demonstration:

[0050] After lubricating oil filling is completed, press down the raised end of the pull lock plate 37 to press it down. The pull lock plate 37 is perpendicular to the push rod 32, and a gap is formed between the through hole of the pull lock plate 37 and the push rod 32. Pull the upper end of the push rod 32 outward to drive the top plate 31 to disengage from the piston cover 52. Pull the oil nozzle 11 out of the grease nipple of the filling part. Turn the union nut 13 to remove the oil filling assembly 1 from the grease filling cylinder 5. Screw the cylinder cover 54 onto the external threaded nozzle of the cylinder 51. The disassembly of this invention is complete.

[0051] The grease filling cylinder 5 of this utility model uses an oil filler for grease filling. The oil outlet 56 of the grease filling cylinder 5 is screwed into the filling port of the oil filler and the oil filler is used to fill the grease into the grease filling cylinder 5.

[0052] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A novel grease filling device, characterized in that, It includes an oil injection assembly (1), an oil cylinder seat (2), an oil pushing assembly (3), a handle mechanism (4), and a grease filling cylinder (5); the grease filling cylinder (5) is disposed inside the oil cylinder seat (2); a piston cover (52) is provided inside the grease filling cylinder (5); the left end of the grease filling cylinder (5) is connected to the oil injection assembly (1); the oil pushing assembly (3) is disposed at the right end of the oil cylinder seat (2) and the grease filling cylinder (5); the handle mechanism (4) is disposed between the oil pushing assembly (3) and the grease filling cylinder (5).

2. The novel grease filling device according to claim 1, characterized in that, The oil-pushing assembly (3) includes a top plate (31), a push rod (32), a push plate (35), and a pull-out locking plate (37). The top plate (31) is a flange structure and is connected to the left end of the push rod (32). A push spring (34) and a locking spring (36) are sleeved on the push rod (32). The locking spring (36) is located on the right side of the push spring (34). The push plate (35) and the pull-out locking plate (37) are respectively provided with through holes, and the push plate (35) and the pull-out locking plate (37) are slidably connected to the push rod (32) through the through holes. The left end face of the push plate (35) abuts against the right end of the push spring (34). The left end face of the pull-out locking plate (37) abuts against the right end of the locking spring (36).

3. The novel grease filling device according to claim 2, characterized in that, The push rod (32) is a "J" shaped round rod structure.

4. The novel grease filling device according to claim 2, characterized in that, The handle mechanism (4) includes a handle (41), a trigger (42), a trigger linkage pin (45), a push plate top pin (46), a connecting plate (49), and a handle base (48). The connecting plate (49) is connected between the handle base (48) and the handle (41); the trigger (42) is rotatably connected to the connecting plate (49) through the trigger linkage pin (45); the handle base (48) is a flange structure with a push rod through hole A (61) in the center and bolt holes (25) on the outer periphery; the handle (41) has a push rod through hole B (62) opposite to the push rod through hole A (61); the push rod (32) passes through the push rod through hole A (61) and the push rod through hole B (62) and is connected to the handle mechanism (4), wherein the push spring (34) is provided on the handle. Between the base (48) and the push plate (35); the locking spring (36) is located between the handle (41) and the pull lock plate (37); the outer side of the handle (41) is provided with a "T"-shaped lock plate latch (43), the front end of the pull lock plate (37) is provided with a slot (38), and the pull lock plate (37) is connected to the lock plate latch (43) through the slot (38); the left end face of the trigger (42) is provided with a slot (65); the rear end of the push plate (35) is inserted into the slot (65); the inner side of the handle (41) is provided with a push plate stop tongue (44), and the push plate stop tongue (44) is located on the right side of the push plate (35).

5. The novel grease filling device according to claim 4, characterized in that, The inner side of the connecting plate (49) is provided with a connecting rod pin hole plate (47); the trigger (42) is rotatably connected to the connecting rod pin hole plate (47) through the trigger connecting rod pin (45).

6. The novel grease filling device according to any one of claims 1 to 5, characterized in that, The grease filling cylinder (5) is a cylindrical structure, including a cylinder (51) and a piston cover (52); the piston cover (52) is located inside the cylinder (51), and a sealing gasket (53) is provided on the contact surface between the piston cover (52) and the cylinder (51); an oil outlet (56) is provided at the left end of the cylinder (51), and an oil outlet cover (54) is provided on the oil outlet (56); a retaining ring (55) is provided at the right end of the cylinder (51).

7. The novel grease filling device according to claim 6, characterized in that, The oil cylinder seat (2) includes a front cover (21), a cylinder (22) and a rear cover (23); the front cover (21) and the rear cover (23) are respectively located at the left and right ends of the cylinder (22); the front cover (21) is provided with an oil nozzle clearance opening (24); the rear cover (23) is provided with a push rod through hole C (63) and a connecting thread hole; the cylinder (22) is formed by two concentric arc plates; the grease filling cylinder (5) is located inside the oil cylinder seat (2), and the oil nozzle (56) is located on the side where the front cover (21) is located, and leaks out from the oil nozzle clearance opening (24) of the front cover (21).

8. The novel grease filling device according to claim 6, characterized in that, The oil filling assembly includes an oil filler nozzle (11), a flexible oil pipe (12), and a swivel nut (13); the flexible oil pipe (12) is connected between the oil filler nozzle (11) and the swivel nut (13).

Images