Grease filling device

Abstract

The present application provides a grease filling device, which includes a base, a quantitative filling component, a vacuum component and a sealing component. The top surface of the base is provided with a quantitative filling component and a vacuum component, and the vacuum component is provided with a sealing component. The quantitative filling component is used to fill grease into the interior of the motor. The vacuum component is used to provide a vacuum space so that the bubbles inside the grease are exposed to a vacuum state. The sealing component is used to seal the vacuum component. The present application adds a quantitative filling component to the grease filling device and provides a vacuum environment to solve the problem that the existing manual filling method cannot accurately control the amount of grease added, which easily leads to too much or too little grease being added to the motor.

Description

Technical Field

[0001] The present application belongs to the technical field of motor greasing, and specifically relates to a grease filling device. Background Art

[0002] The motor is an output power device, which is based on the principle of electromagnetic induction, thereby converting electrical energy into kinetic energy. Motors can be divided into DC motors and AC motors according to the type of working power supply. There are many types of motors, which can be classified not only according to the working power supply, but also by purpose, structure and working principle.

[0003] In order for the motor to operate for a longer period of time, it is necessary to regularly add grease to the inside of the motor. Most motors are greased using a grease gun, which is a method where the staff manually adds grease using a hand-held grease gun, making it impossible to accurately control the amount of grease added. This can easily lead to too much or too little grease being added to the inside of the motor, thereby greatly reducing the lubricating effect of the grease on the motor and resulting in poor use results. Summary of the invention

[0004] In view of this, the present application is committed to providing a grease filling device, which adds a set-quantity filling component in the grease filling device and provides a vacuum environment to solve the problem that the existing manual filling method cannot accurately control the amount of grease filled, which easily leads to too much or too little grease being filled into the motor.

[0005] The present application provides a grease filling device, which includes a base 1, a quantitative filling component 2, a vacuum component 3 and a sealing component 4. The quantitative filling component 2 and the vacuum component 3 are arranged on the top surface of the base 1, and the sealing component 4 is arranged on the vacuum component 3. The quantitative filling component 2 is used to fill the interior of the motor with grease. The vacuum component 3 is used to provide a vacuum space so that the bubbles inside the grease are exposed to a vacuum state. The sealing component 4 is used to seal the vacuum component 3.

[0006] In a specific embodiment of the present application, the quantitative filling assembly 2 includes a filling pump 21 and a connecting pipe 22 . The filling pump 21 is fixedly mounted on the top surface of the base 1 , and the connecting pipe 22 is fixedly mounted on one end of the discharge port of the filling pump 21 .

[0007] In a specific embodiment of the present application, the quantitative filling assembly 2 further includes a first conduit 23, a flow meter 24 and a second conduit 25. The other end of the connecting pipe 22 is fixedly mounted with the first conduit 23, the other end of the first conduit 23 is provided with the flow meter 24, and one end of the second conduit 25 is fixedly mounted on one side of the flow meter 24.

[0008] In a specific embodiment of the present application, the quantitative filling assembly 2 further includes a filling gun barrel 26, a filling gun head 27 and a handle 28. The other end of the second conduit 25 is fixedly mounted with the filling gun barrel 26, the bottom of the filling gun barrel 26 is fixedly mounted with the handle 28, and the top of the filling gun barrel 26 is fixedly mounted with the filling gun head 27.

[0009] In a specific embodiment of the present application, the vacuum assembly 3 includes a fat storage tank 31, a delivery pipe 33, a valve 34 and a mixing drum 35. The fat storage tank 31 is fixedly mounted on the top surface of the base 1, the quantitative filling assembly 2 is fixedly mounted on one side of the fat storage tank 31, the delivery pipe 33 is fixedly mounted on the top surface of the fat storage tank 31, the top of the delivery pipe 33 is provided with a valve 34, and the top of the valve 34 is provided with a mixing drum 35.

[0010] In a specific embodiment of the present application, the vacuum assembly 3 further includes a sealing cover 36, a first air extraction pipe 37, a three-way pipe 312, a second air extraction pipe 313 and a connecting pipe 314. The sealing cover 36 is fixedly installed on the top of the mixing drum 35, the first air extraction pipe 37 is fixedly installed on one side of the sealing cover 36, the three-way pipe 312 is fixedly installed on the bottom end of the first air extraction pipe 37, the second air extraction pipe 313 is fixedly installed on the bottom end of the three-way pipe 312, the bottom end of the second air extraction pipe 313 is fixedly installed on the top surface of the fat storage box 31, and the connecting pipe 314 is fixedly installed on the side port of the three-way pipe 312.

[0011] In a specific embodiment of the present application, the vacuum assembly 3 further includes a vacuum pump 32, a stirring motor 38, a stirring rod 39, a stirring blade 310 and a stirring hole 311. A vacuum pump 32 is provided on the top surface of the fat storage box 31, and one end of the vacuum pump 32 is fixedly connected to the other end of the connecting pipe 314. A stirring motor 38 is fixedly installed on the top surface of the sealing cover 36, and the output shaft of the stirring motor 38 passes through the through hole provided at the top of the sealing cover 36. A stirring rod 39 is fixedly installed on one end of the output shaft of the stirring motor 38, and a stirring blade 310 is fixedly installed on the outer wall at the bottom of the stirring rod 39, and a stirring hole 311 is provided on the outer wall of the stirring blade 310.

[0012] In a specific embodiment of the present application, the sealing assembly 4 includes a sealing cover 43, a first sealing ring 44, a second sealing ring 45 and a sealing plug 46. The sealing plug 46 is fixedly installed at the bottom of the sealing cover 43, the second sealing ring 45 is fixedly installed on the outer wall of the top of the sealing plug 46, the first sealing ring 44 is fixedly installed at the bottom of the sealing cover 43, a feeding port 41 is provided on the top surface of the sealing cover 43, a first sealing groove 47 and a second sealing groove 48 are provided on the inner wall of the feeding port 41, and the first sealing groove 47 is located in the middle of the second sealing groove 48.

[0013] In a specific embodiment of the present application, the sealing assembly 4 further includes a pressing plate 42, a rotating shaft 49, a casing 411, a long rod 412 and a latch 414. The sealing plug 46 is located in the middle of the bottom of the sealing cover 43, and the sealing plug 46 is located in the middle of the first sealing ring 44. A mounting groove is provided on the outer wall of the sealing cover 36, and a rotating shaft 49 is rotatably installed on the inner wall of the mounting groove. The pressing plate 42 is fixedly installed on the top of the rotating shaft 49, and the casing 411 is fixedly installed on the bottom of the other end of the pressing plate 42. The latch 414 is slidably installed on the inner wall of the casing 411, and the long rod 412 is fixedly installed on the top of the latch 414. The long rod 412 passes through the through hole set at the top of the casing 411, and the long rod 412 passes through the through hole set at the other end of the pressing plate 42.

[0014] In a specific embodiment of the present application, the sealing assembly 4 further includes a pull block 410 and a spring 413. A spring 413 is mounted on the outer wall of the long rod 412, the bottom end of the spring 413 is fixedly mounted on the outer wall of the latch 414, the top end of the spring 413 is fixedly mounted on the inner wall at the top of the casing 411, a plug hole is provided on the outer wall of the sealing cover 36, a pull block 410 is fixedly mounted on the top end of the long rod 412, the radius of the sealing plug 46 is the same as the radius of the feed port 41, the outer diameter of the second sealing ring 45 is larger than the radius of the feed port 41, the radius of the sealing cover 43 is larger than the radius of the feed port 41, the inner radius of the casing 411 is the same as the radius of the latch 414, the inner wall of the through hole provided at the top of the casing 411 is slidably connected to the long rod 412, and the inner wall of the through hole provided at the other end of the pressing plate 42 is slidably connected to the long rod 412.

[0015] The beneficial effect of the technical solution of the present application is that by using a quantitative filling component to add grease to the interior of the motor, using a sealing component to seal the vacuum component, and using the vacuum component to provide a vacuum space, the bubbles inside the grease are exposed to a vacuum state, thereby enabling the interior of the motor to be accurately filled with grease, avoiding the phenomenon of too much or too little grease being added to the interior of the motor, and improving the lubricating effect of the grease on the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a grease filling device provided in one embodiment of the present application.

[0017] Figure 2 Shown is a schematic diagram of the three-dimensional structure of a quantitative filling group in a grease filling device provided in one embodiment of the present application.

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional structure of a vacuum component in a grease filling device provided in one embodiment of the present application.

[0019] Figure 4Shown is a schematic diagram of the three-dimensional structure of a stirring motor and a stirring rod in a grease filling device provided in one embodiment of the present application.

[0020] Figure 5 Shown is a three-dimensional structural schematic diagram of a sealing cover and a sealing assembly in a grease filling device provided in one embodiment of the present application.

[0021] Figure 6 Shown is a schematic diagram of the three-dimensional structure of a sealing assembly in a grease filling device provided in one embodiment of the present application.

[0022] Figure 7 Shown is a schematic diagram of a partial exploded structure of a sealing assembly in a grease filling device provided in one embodiment of the present application.

[0023] Figure 8 Shown Figure 3 An enlarged structural schematic diagram of area A in a grease filling device is shown.

[0024] In the figure, 1, base; 2, quantitative filling component; 21, filling pump; 22, connecting pipe; 23, first conduit; 24, flow meter; 25, second conduit; 26, filling gun barrel; 27, filling gun head; 28, handle; 3, vacuum component; 31, fat storage box; 32, vacuum pump; 33, outlet pipe; 34, valve; 35, mixing drum; 36, sealing cover; 37, first exhaust pipe; 38, mixing motor; 39, mixing rod; 31 0. Stirring blade; 311. Stirring hole; 312. Three-way pipe; 313. Second exhaust pipe; 314. Connecting pipe; 4. Sealing assembly; 41. Feeding port; 42. Pressing plate; 43. Sealing cover; 44. First sealing ring; 45. Second sealing ring; 46. Sealing plug; 47. First sealing groove; 48. Second sealing groove; 49. Rotating shaft; 410. Pull block; 411. Housing; 412. Long rod; 413. Spring; 414. Latch. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] At least one embodiment of the present application provides a grease filling device, referring to Figure 1The grease filling device comprises a base 1, a quantitative filling component 2, a vacuum component 3 and a sealing component 4. The quantitative filling component 2 and the vacuum component 3 are arranged on the top surface of the base 1, and the sealing component 4 is arranged on the vacuum component 3. The quantitative filling component 2 is used to fill the interior of the motor with grease. The vacuum component 3 is used to provide a vacuum space so that the bubbles inside the grease are exposed to a vacuum state. The sealing component 4 is used to seal the vacuum component 3.

[0027] According to the technical solution provided in the embodiment of the present application, grease is added to the interior of the motor by utilizing the quantitative filling component 2, the vacuum component 3 is sealed by utilizing the sealing component 4, and the vacuum component 3 provides a vacuum space, so that the bubbles inside the grease are exposed to the vacuum state, thereby enabling the interior of the motor to be accurately filled with grease, achieving quantitative grease filling of the motor, avoiding the phenomenon of too much or too little grease being added to the interior of the motor, and improving the lubricating effect of the grease on the motor.

[0028] In at least one embodiment of the present application, reference Figure 1 and Figure 2 The quantitative filling component 2 includes a filling pump 21 and a connecting pipe 22 . The filling pump 21 is fixedly installed on the top surface of the base 1 , and a connecting pipe 22 is fixedly installed at one end of the discharge port of the filling pump 21 .

[0029] In at least one embodiment of the present application, reference Figure 2 The quantitative filling assembly 2 also includes a first conduit 23, a flow meter 24 and a second conduit 25. The other end of the connecting pipe 22 is fixedly mounted with the first conduit 23, the other end of the first conduit 23 is provided with the flow meter 24, and one end of the second conduit 25 is fixedly mounted on one side of the flow meter 24.

[0030] In at least one embodiment of the present application, reference Figure 2 The quantitative filling assembly 2 also includes a filling gun barrel 26, a filling gun head 27 and a handle 28. The other end of the second conduit 25 is fixedly mounted with the filling gun barrel 26, the bottom of the filling gun barrel 26 is fixedly mounted with the handle 28, and the top of the filling gun barrel 26 is fixedly mounted with the filling gun head 27.

[0031] In the above embodiment, by designing a specific structural composition for the quantitative filling component 2, accurate filling of grease into the interior of the motor is effectively achieved, avoiding the phenomenon of too much or too little grease being filled into the motor. At the same time, there is no need for manual filling by the staff, so that the amount of grease added can be accurately controlled, which greatly reduces the intensity of manual labor and has a good use effect.

[0032] In at least one embodiment of the present application, reference Figure 3The vacuum assembly 3 includes a fat storage tank 31, a delivery pipe 33, a valve 34 and a mixing drum 35. The fat storage tank 31 is fixedly mounted on the top surface of the base 1, and the quantitative filling assembly 2 is fixedly mounted on one side of the fat storage tank 31. The delivery pipe 33 is fixedly mounted on the top surface of the fat storage tank 31, and the top of the delivery pipe 33 is provided with a valve 34, and the top of the valve 34 is provided with a mixing drum 35.

[0033] Specifically, the feeding port of the filling pump 21 is fixedly installed on one side of the fat storage tank 31 .

[0034] In at least one embodiment of the present application, reference Figure 3 and Figure 8 The vacuum assembly 3 further includes a sealing cover 36, a first air extraction pipe 37, a three-way pipe 312, a second air extraction pipe 313 and a connecting pipe 314. The sealing cover 36 is fixedly installed on the top of the mixing drum 35, the first air extraction pipe 37 is fixedly installed on one side of the sealing cover 36, the three-way pipe 312 is fixedly installed on the bottom end of the first air extraction pipe 37, the second air extraction pipe 313 is fixedly installed on the bottom end of the three-way pipe 312, the bottom end of the second air extraction pipe 313 is fixedly installed on the top surface of the fat storage box 31, and the connecting pipe 314 is fixedly installed on the side port of the three-way pipe 312.

[0035] In at least one embodiment of the present application, reference Figure 3 and Figure 4 The vacuum assembly 3 also includes a vacuum pump 32, a stirring motor 38, a stirring rod 39, a stirring blade 310 and a stirring hole 311. The vacuum pump 32 is arranged on the top surface of the fat storage box 31, and one end of the vacuum pump 32 is fixedly connected to the other end of the connecting pipe 314. The stirring motor 38 is fixedly installed on the top surface of the sealing cover 36, and the output shaft of the stirring motor 38 passes through the through hole set on the top of the sealing cover 36. The stirring rod 39 is fixedly installed on one end of the output shaft of the stirring motor 38. The stirring blade 310 is fixedly installed on the outer wall of the bottom of the stirring rod 39, and the outer wall of the stirring blade 310 is provided with a stirring hole 311.

[0036] In the above embodiment, by designing the specific structural composition of the vacuum component 3, it is effectively achieved that the grease forms a uniform and stable oil film inside the motor, reducing friction and wear, thereby improving the lubrication effect, and also preventing the bubble-free grease from rubbing against the internal parts of the motor, thereby improving heat dissipation and maintaining the operating temperature of the motor.

[0037] In at least one embodiment of the present application, reference Figures 5 to 7The sealing assembly 4 includes a sealing cover 43, a first sealing ring 44, a second sealing ring 45 and a sealing plug 46. The sealing plug 46 is fixedly installed at the bottom of the sealing cover 43, the second sealing ring 45 is fixedly installed on the outer wall of the top of the sealing plug 46, the first sealing ring 44 is fixedly installed at the bottom of the sealing cover 43, a feeding port 41 is arranged on the top surface of the sealing cover 46, a first sealing groove 47 and a second sealing groove 48 are arranged on the inner wall of the feeding port 41, and the first sealing groove 47 is located in the middle of the second sealing groove 48.

[0038] In at least one embodiment of the present application, reference Figures 5 to 7 The sealing assembly 4 further includes a pressing plate 42, a rotating shaft 49, a sleeve 411, a long rod 412 and a latch 414. The sealing plug 46 is located in the middle of the bottom of the sealing cover 43, and the sealing plug 46 is located in the middle of the first sealing ring 44. A mounting groove is provided on the outer wall of the sealing cover 36, and a rotating shaft 49 is rotatably installed on the inner wall of the mounting groove. The pressing plate 42 is fixedly installed on the top of the rotating shaft 49, and the sleeve 411 is fixedly installed on the bottom of the other end of the pressing plate 42. The latch 414 is slidably installed on the inner wall of the sleeve 411, and the long rod 412 is fixedly installed on the top of the latch 414. The long rod 412 passes through the through hole provided at the top of the sleeve 411, and the long rod 412 passes through the through hole provided at the other end of the pressing plate 42.

[0039] In at least one embodiment of the present application, reference Figures 5 to 7 The sealing assembly 4 further includes a pull block 410 and a spring 413. A spring 413 is sleeved on the outer wall of the long rod 412, the bottom end of the spring 413 is fixedly mounted on the outer wall of the latch 414, the top end of the spring 413 is fixedly mounted on the inner wall at the top of the casing 411, a plug hole is provided on the outer wall of the sealing cover 36, a pull block 410 is fixedly mounted on the top of the long rod 412, the radius of the sealing plug 46 is the same as the radius of the feeding port 41, the outer diameter of the second sealing ring 45 is larger than the radius of the feeding port 41, the radius of the sealing cover 43 is larger than the radius of the feeding port 41, the inner radius of the casing 411 is the same as the radius of the latch 414, the inner wall of the through hole provided at the top of the casing 411 is slidably connected to the long rod 412, and the inner wall of the through hole provided at the other end of the pressing plate 42 is slidably connected to the long rod 412.

[0040] In the above embodiment, by designing the specific structural composition of the sealing component 4, the feeding port 41 at the top of the sealing cover 36 is effectively sealed to avoid air leakage, thereby greatly improving the sealing effect of the mixing drum and achieving good use effect.

[0041] Below, in combination with specific embodiments, the working principle of a grease filling device provided in an embodiment of the present application is specifically illustrated.

[0042] First, open the grease filling port provided on the outer wall of the motor, then hold the handle 28, insert the muzzle on the filling gun head 27 into the grease filling port provided on the outer wall of the motor, and then start the filling pump 21. The filling pump 21 draws the grease inside the grease storage box 31 into the connecting pipe 22, and then directly introduces it into the first conduit 23 from the connecting pipe 22. The grease in the first conduit 23 is introduced into the flowmeter 24. After passing through the flowmeter 24, the grease is directly introduced into the second conduit 25, and then introduced into the filling gun barrel 26 from the second conduit 25. The grease inside the filling gun barrel 26 flows to the filling gun head 27, so that the grease is introduced into the interior of the motor from the filling gun head 27.

[0043] Before filling the inside of the motor with grease, the grease is first added into the mixing drum 35 through the feeding port 41, and the mixing motor 38 is started. One end of the output shaft of the mixing motor 38 drives the mixing rod 39 to rotate, and the mixing rod 39 drives the mixing blade 310 provided with the mixing hole 311 to rotate, so that the mixing blade 310 stirs the grease at the bottom of the mixing drum 35, and then the vacuum pump 32 is turned on. The vacuum pump 32 connects the mixing drum 35 through the connecting pipe 314, the three-way pipe 312, the second exhaust pipe 313 and the first exhaust pipe 37. 5, and the air inside the grease storage box 31 is also evacuated, so that the grease storage box 31 is in a vacuum state. After the air in the mixing drum 35 is evacuated, it is placed in a vacuum state. The grease is stirred in the mixing drum 35 in the vacuum state, so that the bubbles inside the grease are exposed to the vacuum state, so that the bubbles burst and are eliminated. Then the valve 34 is opened. After the valve 34 is opened, the grease inside the mixing drum 35 flows into the grease storage box 31, and the grease after the bubbles are removed is temporarily stored in a vacuum environment.

[0044] Before the grease is added to the mixing drum 35 through the feeding port 41, the pull block 410 is first pulled upward, and the pull block 410 drives the long rod 412 to move, and the long rod 412 drives the latch 414 to move out of the insertion hole set on the sealing cover 36, and the latch 414 squeezes the spring 413, and the latch 414 retracts into the sleeve 411. Then, by rotating the pull block 410, the pull block 410 drives the pressure plate 42 to rotate, and the pressure plate 42 drives the rotating shaft 49 to rotate inside the mounting groove set on the sealing cover 36, so that the pressure plate 42 is moved away from the top of the sealing cover 43, and the sealing cover 43 can be pulled upward. 3. The sealing cover 43 drives the sealing plug 46 to be pulled out from the inside of the feeding port 41, and the second sealing ring 45 provided on the side wall of the sealing plug 46 is separated from the first sealing groove 47 provided on the inner wall of the feeding port 41, and the first sealing ring 44 provided at the bottom of the sealing cover 43 is separated from the inner wall of the second sealing groove 48. After adding grease, similarly, the sealing plug 46 is reinserted into the feeding port 41, the second sealing ring 45 is buckled into the first sealing groove 47, and the first sealing ring 44 is buckled into the second sealing groove 48. Similarly, the latch 414 is reinserted into the insertion hole provided on the sealing cover 36.

[0045] It should be noted that the combination of the various technical features in the embodiments of the present application is not limited to the combination described in the embodiments of the present application or the combination described in the specific embodiments, and all technical features described in the present application can be freely combined or combined in any way unless there is a contradiction between them.

[0046] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the term "comprising" only indicates that the steps and elements that have been clearly identified are included, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0048] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A grease filling device, characterized in that: It comprises a base (1), a quantitative filling component (2), a vacuum component (3) and a sealing component (4), A quantitative filling component (2) and a vacuum component (3) are arranged on the top surface of the base (1); a sealing component (4) is arranged on the vacuum component (3); the quantitative filling component (2) is used to fill grease into the interior of the motor; the vacuum component (3) is used to provide a vacuum space so that bubbles in the grease are exposed to a vacuum state; and the sealing component (4) is used to seal the vacuum component (3).

2. A grease filling device according to claim 1, characterized in that: The quantitative filling assembly (2) comprises a filling pump (21) and a connecting pipe (22); the filling pump (21) is fixedly mounted on the top surface of the base 1; and the connecting pipe (22) is fixedly mounted on one end of the discharge port of the filling pump (21).

3. A grease filling device according to claim 2, characterized in that: The quantitative filling assembly (2) further comprises a first conduit (23), a flow meter (24) and a second conduit (25); the first conduit (23) is fixedly mounted on the other end of the connecting pipe (22); the flow meter (24) is disposed on the other end of the first conduit (23); and one end of the second conduit (25) is fixedly mounted on one side of the flow meter (24).

4. A grease filling device according to claim 3, characterized in that: The quantitative filling assembly (2) also includes a filling gun barrel (26), a filling gun head (27) and a handle (28); the other end of the second guide tube (25) is fixedly mounted with the filling gun barrel (26); the bottom of the filling gun barrel (26) is fixedly mounted with the handle (28); and the top of the filling gun barrel (26) is fixedly mounted with the filling gun head (27).

5. A grease filling device according to claim 1, characterized in that: The vacuum assembly (3) comprises a fat storage box (31), a delivery pipe (33), a valve (34) and a mixing drum (35); the fat storage box (31) is fixedly mounted on the top surface of the base (1); the quantitative filling assembly (2) is fixedly mounted on one side of the fat storage box (31); the delivery pipe (33) is fixedly mounted on the top surface of the fat storage box (31); the top end of the delivery pipe (33) is provided with a valve (34); and the top end of the valve (34) is provided with a mixing drum (35).

6. A grease filling device according to claim 5, characterized in that: The vacuum assembly (3) further comprises a sealing cover (36), a first air extraction pipe (37), a three-way pipe (312), a second air extraction pipe (313) and a connecting pipe (314); the sealing cover (36) is fixedly mounted on the top of the mixing drum (35); the first air extraction pipe (37) is fixedly mounted on one side of the sealing cover (36); the bottom end of the first air extraction pipe (37) is fixedly mounted on the three-way pipe (312); the bottom end of the three-way pipe (312) is fixedly mounted on the second air extraction pipe (313); the bottom end of the second air extraction pipe (313) is fixedly mounted on the top surface of the fat storage box (31); and the connecting pipe (314) is fixedly mounted on the side port of the three-way pipe (312).

7. A grease filling device according to claim 6, characterized in that: The vacuum assembly (3) further comprises a vacuum pump (32), a stirring motor (38), a stirring rod (39), a stirring blade (310) and a stirring hole (311). The vacuum pump (32) is arranged on the top surface of the fat storage box (31). One end of the vacuum pump (32) is fixedly connected to the other end of the connecting pipe (314). The stirring motor (38) is fixedly mounted on the top surface of the sealing cover (36). The output shaft of the stirring motor (38) passes through a through hole arranged on the top of the sealing cover (36). The stirring rod (39) is fixedly mounted on one end of the output shaft of the stirring motor (38). The stirring blade (310) is fixedly mounted on the outer wall of the bottom of the stirring rod (39). The stirring hole (311) is arranged on the outer wall of the stirring blade (310).

8. A grease filling device according to any one of claims 1 to 7, characterized in that: The sealing assembly (4) comprises a sealing cover (43), a first sealing ring (44), a second sealing ring (45) and a sealing plug (46); the sealing plug (46) is fixedly mounted on the bottom of the sealing cover (43); the second sealing ring (45) is fixedly mounted on the outer wall of the top of the sealing plug (46); the first sealing ring (44) is fixedly mounted on the bottom of the sealing cover (43); a feeding port (41) is arranged on the top surface of the sealing cover (46); a first sealing groove (47) and a second sealing groove (48) are arranged on the inner wall of the feeding port (41); the first sealing groove (47) is located in the middle of the second sealing groove (48).

9. A grease filling device according to claim 8, characterized in that: The sealing assembly (4) also includes a pressing plate (42), a rotating shaft (49), a sleeve (411), a long rod (412) and a latch (414); the sealing plug (46) is located in the middle of the bottom of the sealing cover (43); the sealing plug (46) is located in the middle of the first sealing ring (44); a mounting groove is provided on the outer wall of the sealing cover (36); a rotating shaft (49) is rotatably installed on the inner wall of the mounting groove; a pressing plate (42) is fixedly installed on the top of the rotating shaft (49); a sleeve (411) is fixedly installed on the bottom of the other end of the pressing plate (42); a latch (414) is slidably installed on the inner wall of the sleeve (411); a long rod (412) is fixedly installed on the top of the latch (414); the long rod (412) passes through a through hole provided at the top of the sleeve (411); and the long rod (412) passes through a through hole provided at the other end of the pressing plate (42).

10. A grease filling device according to claim 9, characterized in that: The sealing assembly (4) further comprises a pull block (410) and a spring (413). The spring (413) is mounted on the outer wall of the long rod (412). The bottom end of the spring (413) is fixedly mounted on the outer wall of the latch (414). The top end of the spring (413) is fixedly mounted on the inner wall of the top of the sleeve (411). The outer wall of the sealing cover (36) is provided with a plug hole. The pull block (410) is fixedly mounted on the top of the long rod (412). The semi-circular portion of the sealing plug (46) is provided with a plug hole. The outer diameter of the second sealing ring (45) is larger than the radius of the feeding port (41), the radius of the sealing cover (43) is larger than the radius of the feeding port (41), the inner radius of the casing (411) is the same as the radius of the latch (414), the inner wall of the through hole set at the top of the casing (411) is slidably connected to the long rod (412), and the inner wall of the through hole set at the other end of the pressure plate (42) is slidably connected to the long rod (412).

Images