Barrel-inserting self-grease-supplementing type electric grease adding assembly adaptive to standard grease barrel

Abstract

The invention relates to a barrel-inserting self-grease-supplementing type electric grease adding assembly matched with a standard grease barrel, which comprises a barrel-inserting grease pumping device and an electric grease adding gun, the barrel-inserting grease pumping device is used for being inserted into the standard grease barrel and pumping lubricating grease from the standard grease barrel, and the barrel-inserting grease pumping device comprises a positioning cover body, a central grease pumping pipe, a grease suction auger and a turbine worm mechanism; the positioning cover body is used for covering a barrel opening of a standard grease barrel, the positioning cover body is fixed relative to the barrel opening, a grease suction auger is rotationally assembled in the center grease pumping pipe, and the electric grease adding gun comprises a grease storage barrel, a driving motor, a ratchet mechanism and a grease outlet plunger pair. And then the electric grease adding gun rotates forwards to drive the barrel inserting grease pumping device to pump the lubricating grease from the grease barrel so as to supplement the lubricating grease into a grease storage barrel of the electric grease adding gun, so that the rapid self-grease-supplementing effect is achieved, the grease supplementing efficiency is remarkably improved, the grease supplementing process is easier and more labor-saving, and the barrel inserting grease pumping device has the protection effect on the lubricating grease in the grease barrel.

Description

Technical Field

[0001] The present invention relates to an in-barrel self-supplementing grease electric greasing assembly adapted to a standard grease barrel. Background Art

[0002] In the field of construction machinery, since the working components of construction machinery are in direct contact with materials, if a centralized lubrication system is arranged, the lubrication pipelines and distributors of the centralized lubrication system are often easily damaged by the impact of materials, affecting the overall operation of the lubrication system. Therefore, the working components of construction machinery (actuators, such as the lubrication at the connecting rod corresponding to the bucket of an excavator) generally adopt a manual lubrication method. For the convenience of operation, an electric grease gun is often used.

[0003] However, the volume of the electric hand-held grease gun is very limited. For medium, large, and extra-large construction machinery, one shot of grease is far from enough, and it is necessary to replenish grease into the grease storage cylinder multiple times. The existing method generally adopts a piston structure, similar to the structure of a medical syringe. The hand-held pull rod is used to pull the piston to suck the lubricating grease from the standard grease barrel. Since the lubricating grease is a semi-fluid and has extremely poor fluidity, this process is very laborious and time-consuming. Moreover, due to the harsh on-site environment and improper operation of personnel, sundries often fall into the grease barrel during the manual grease replenishment process, contaminating the lubricating grease inside and affecting the lubricating performance of the lubricating grease. Summary of the Invention

[0004] The purpose of the present invention is to provide an in-barrel self-supplementing grease electric greasing assembly adapted to a standard grease barrel, which can be directly adapted to the standard grease barrel. The central grease extraction pipe of the in-barrel grease extraction device is inserted into the bottom of the grease barrel, and then the electric grease gun is rotated forward to drive the in-barrel grease extraction device to suck the lubricating grease from the grease barrel and supplement it into the grease storage cylinder of the electric grease gun, achieving the effect of rapid self-supplementing grease, significantly improving the grease replenishment efficiency, making the grease replenishment process easier and more labor-saving, and the in-barrel grease extraction device has a protective effect on the lubricating grease in the grease barrel, preventing dust, sundries, rainwater, etc. from falling into the grease barrel to contaminate the lubricating grease.

[0005] The technical solution of the in-barrel self-supplementing grease electric greasing assembly adapted to a standard grease barrel of the present invention is as follows: The in-barrel self-supplementing grease electric greasing assembly adapted to a standard grease barrel includes:

[0006] Barrel-inserted fat suction device, which is used to insert into a standard grease barrel and suck lubricating grease therefrom, and includes a positioning cover, a central fat suction pipe, a fat suction auger and a worm and worm gear mechanism; the positioning cover is used to cover the barrel mouth of the standard grease barrel, the positioning cover is fixed relative to the barrel mouth, the central fat suction pipe is fixed at the center of the positioning cover, the top of the central fat suction pipe has a sealing cover, the lower end of the central fat suction pipe is used to insert into the barrel bottom, the lower end of the central fat suction pipe is provided with a fat inlet, one side of the upper part of the central fat suction pipe has a fat outlet, a first quick insertion joint is connected at the fat outlet, a fat suction auger is rotatably assembled in the central fat suction pipe, the fat suction auger extends from one end of the central fat suction pipe to the other end, the fat suction auger includes a central rotating shaft and spiral conveying blades spirally arranged thereon, the outer diameter of the spiral conveying blades is consistent with the inner diameter of the central fat suction pipe, the upper end of the central rotating shaft extends outwards after passing through the sealing cover, and the upper end of the central rotating shaft is rotationally and sealingly matched with the sealing cover; the worm and worm gear mechanism includes a worm and a worm gear in transmission cooperation, the worm gear is rotatably installed at the upper end of the central rotating shaft, and one end of the worm has a first transmission quick insertion joint;

[0007] Electric grease gun, which includes a grease storage cylinder, a driving motor, a ratchet mechanism and a grease outlet plunger pair. The grease storage cylinder has a grease replenishing port, and a second quick insertion joint is connected at the grease replenishing port through a grease replenishing hose. The driving motor includes a motor output shaft, and a second transmission quick insertion joint is provided at the outer end of the motor output shaft. The first and second transmission quick insertion joints can be quickly plugged and matched to achieve mutual transmission. The ratchet mechanism is installed in the middle of the motor output shaft. The ratchet mechanism includes an inner wheel, a ratchet pawl and an outer wheel. The inner wheel is fixedly connected with the motor output shaft. The ratchet pawl is rotatably assembled on the inner wheel. The outer wheel has an eccentric inner circular hole, and ratchet teeth are provided on the inner peripheral surface of the inner circular hole. The ratchet pawl is in one-way transmission cooperation with the ratchet teeth. When the motor output shaft rotates reversely, the inner wheel drives the outer wheel to rotate through the ratchet pawl. The inner wheel and the outer wheel form an eccentric wheel mechanism. The grease outlet plunger pair is driven by the eccentric wheel mechanism to pressurize and pump the lubricating grease in the grease storage cylinder out. When the motor output shaft rotates forward, the first quick insertion joint and the second quick insertion joint are plugged and matched, the ratchet pawl and the ratchet teeth are disengaged from meshing, and the second transmission quick insertion joint of the motor output shaft can be inserted into the first transmission quick insertion joint of the worm to drive the worm to rotate, and the fat suction auger rotates accordingly, and the lubricating grease is conveyed along the central fat suction pipe into the grease storage cylinder.

[0008] The beneficial effects of this solution are as follows: During normal operation, the electric grease gun controls the reverse rotation of the motor through the switch. The output shaft of the motor rotates in reverse, driving the inner wheel to rotate in reverse. The ratchet on the inner wheel meshes with the ratchet teeth on the outer wheel for transmission, driving the outer wheel to rotate in reverse. The outer wheel, as part of the eccentric wheel mechanism, can drive the grease outlet plunger pair to act, pumping out the grease in the grease storage cylinder and pumping it out under high pressure to lubricate the lubrication points. When the grease storage cylinder needs to be refilled, open the lid of the standard grease barrel, put the barrel-inserting fat extraction device into the barrel from the barrel mouth, and ensure that the positioning cover body is fixedly covered at the barrel mouth position, so as to realize the positioning of the central fat extraction pipe. At this time, the central fat extraction pipe is located at the center of the grease barrel, and the lower end of the central fat extraction pipe is inserted into the grease until the bottom of the barrel. Then connect the second quick insertion joint of the electric grease gun to the first quick insertion joint of the barrel-inserting fat extraction device, and dock the second transmission quick insertion joint of the electric grease gun with the first transmission quick insertion joint of the barrel-inserting fat extraction device. Then control the motor to rotate forward through the switch of the electric grease gun. At this time, due to the one-way meshing structure of the ratchet teeth and the ratchet, the two are disengaged from meshing at this time, that is, the inner wheel cannot transmit power to the outer wheel, and the inner wheel idles with the output shaft of the motor. However, the output shaft of the motor can drive the worm to rotate through the transmission of the second transmission quick insertion joint and the first transmission quick insertion joint, drive the turbine and the central rotating shaft to rotate, and drive the spiral conveying blade to rotate. Using the conveying mechanism formed by the spiral conveying blade and the central fat extraction pipe, the grease in the grease barrel is conveyed upward. The grease passes through the grease inlet, grease outlet, first quick insertion joint, second quick insertion joint, replenishing hose, etc. of the central fat extraction pipe in sequence and enters the grease storage cylinder of the electric grease gun for rapid refilling. From the above working process, it can be seen that this application can be directly adapted to the standard grease barrel. Through the cooperation of the positioning cover body of the barrel-inserting fat extraction device and the barrel mouth, the positioning of the central fat extraction pipe is realized, and the barrel mouth is also sealed and protected. Then, use the forward rotation of the electric grease gun to drive the barrel-inserting fat extraction device to suck the lubricating grease from the grease barrel and supplement it into the grease storage cylinder of the electric grease gun, realizing the effect of rapid self-refilling. The refilling efficiency is significantly improved, the refilling process is easier and more labor-saving, and the barrel-inserting fat extraction device has a protective effect on the lubricating grease in the grease barrel, preventing dust, sundries, rainwater, etc. from falling into the grease barrel to contaminate the lubricating grease.

[0009] Furthermore, it includes a follower floating disk for fitting the liquid surface and moving with the liquid surface. The follower floating disk includes a sliding sleeve slidably assembled outside the central fat extraction pipe and a sealing disk fixed on the sliding sleeve. The outer periphery of the sealing disk is used for sliding and sealing cooperation with the barrel wall of the standard grease barrel. The setting of the follower floating disk can, on the one hand, perform intermediate positioning on the central fat extraction pipe, cooperate with the positioning barrel lid to form a two-point positioning structure, making the central fat extraction pipe not easy to deflect and ensuring more thorough fat extraction; on the other hand, the follower floating disk can also follow the liquid surface to drop to scrape off the residual grease on the barrel wall.

[0010] Furthermore, there are multiple fat inlet ports, which are circumferentially distributed evenly on the lower side surface of the central fat suction pipe. The circumferentially even distribution of the fat inlet ports on the side surface ensures that even when the distance between the central fat suction pipe and the bottom of the barrel is relatively close, it does not affect the inlet speed of the lubricating grease from the fat inlet ports.

[0011] Furthermore, at least two support bearings are provided on the central rotating shaft. The support bearing includes an inner ring, an outer ring and a roller assembly. The inner ring is sleeved and fixed on the central rotating shaft, and the outer ring is fixed on the inner wall of the central fat suction pipe through at least three evenly distributed support rods respectively.

[0012] Furthermore, there are three support bearings, which are evenly distributed along the length direction of the central rotating shaft. The spiral conveying blade is disconnected in an area corresponding to the position of the middle support bearing to avoid movement interference between the spiral conveying blade and the support bearing.

[0013] Furthermore, the spiral conveying blade includes an elastic rubber part vulcanized at the outer edge. The elastic rubber part can be slidably and sealedly matched with the inner wall of the central fat suction pipe to improve the sealing performance of the oil conveyance. The setting of the elastic rubber part enables the spiral conveying blade and the central fat suction pipe to form a sealed conveying structure, which can increase the conveying pressure of the grease and make it easier to overcome the resistance of the spring piston in the grease storage barrel and enter the grease storage barrel.

[0014] Furthermore, the structure of the first drive quick-connect joint includes a cross-shaped boss and a positioning circular platform spaced around the cross-shaped boss, and the structure of the second drive quick-connect head includes a matching cross-shaped groove.

[0015] Furthermore, the drive motor is a speed-regulating motor, and the forward rotation speed and reverse rotation speed of the drive motor can be adjusted separately through a switch to control the grease replenishment speed and the grease outlet speed.

[0016] Furthermore, a fixed bracket is fixed outside the positioning cover body, and both ends of the worm are rotatably assembled on the fixed bracket through bearings.

[0017] Furthermore, the electric grease gun includes a detachable rechargeable battery.

[0018] Furthermore, a spring and a piston are provided in the grease storage barrel, and the grease replenishment port is arranged at one end far from the spring.

[0019] Furthermore, it includes a portable packing box, and a placement position adapted to the outer shapes of the electric grease gun and the barrel inserting and fat suction device is provided in the portable packing box.

[0020] Furthermore, an annular groove is provided on the outer peripheral surface of the outer wheel, and one end of the plunger of the grease outlet plunger pair slides in the annular groove through a hooking structure. Description of the Drawings

[0021] Figure 1Schematic diagram of the working principle of the barrel-inserting fat extraction device of the barrel-inserting and self-compensating fat electric greasing component adapted to the standard grease barrel of the present invention;

[0022] Figure 2 is Figure 1 The cross-sectional view at A-A in;

[0023] Figure 3 The front view of the worm;

[0024] Figure 4 is Figure 3 The cross-sectional view at B-B in;

[0025] Figure 5 Schematic diagram of the structure of the main transmission component of the electric grease gun;

[0026] Figure 6 is Figure 5 The cross-sectional view at C-C in;

[0027] Figure 7 is Figure 6 The cross-sectional view at D-D in;

[0028] Figure 8 Schematic diagram of the principle of the electric grease gun;

[0029] In the figure: 1 - standard grease barrel, 2 - barrel-inserting fat extraction device, 21 - positioning cover body, 22 - follower floating disc, 221 - sliding sleeve, 222 - sealing disc, 23 - central fat extraction pipe, 231 - sealing cover, 232 - fat inlet, 233 - fat outlet, 234 - first quick plug-in joint, 24 - suction screw conveyor, 241 - central rotating shaft, 242 - spiral conveying blade, 25 - worm and worm gear mechanism, 251 - worm gear, 252 - worm, 2521 - first transmission quick plug-in joint, 25211 - cross-shaped boss, 25212 - positioning round table, 27 - support bearing, 271 - inner ring, 272 - outer ring, 273 - roller assembly, 274 - support rod; 3 - electric grease gun, 31 - grease storage cylinder, 311 - grease replenishing port, 312 - spring, 313 - piston, 32 - drive motor, 321 - motor output shaft, 3211 - second transmission quick plug-in joint, 32111 - cross-shaped groove, 33 - ratchet mechanism, 331 - inner wheel, 332 - ratchet pawl, 333 - outer wheel, 3331 - ratchet teeth, 3332 - annular groove, 34 - fat outlet plunger pair, 35 - detachable rechargeable battery. Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Generally, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0031] Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0032] It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.

[0033] The features and performance of the present invention will be further described in detail below in conjunction with embodiments.

[0034] A specific embodiment of an electric grease filling component with barrel inserting and self-grease replenishing for adapting to a standard grease barrel according to the present invention: As Figure 1-8 shown, the electric grease filling component with barrel inserting and self-grease replenishing for adapting to a standard grease barrel mainly includes a barrel inserting and fat suction device 2, an electric grease gun 3 and a portable packing box. A placement position adapted to the outer shapes of the electric grease gun 3 and the barrel inserting and fat suction device 2 is provided in the portable packing box.

[0035] As Figure 1As shown, the bucket-inserting fat extraction device 2 is used to insert into a standard grease bucket and extract grease therefrom, and includes a positioning cover 21, a central fat extraction pipe 23, a fat extraction auger 24 and a worm and worm gear mechanism 25; the positioning cover 21 is used to cover the mouth of the standard grease bucket, and the positioning cover 21 is fixed relative to the bucket mouth. The central fat extraction pipe 23 is fixed at the center of the positioning cover 21. The top of the central fat extraction pipe 23 has a sealing cover 231. The lower end of the central fat extraction pipe 23 is used to insert into the bottom of the bucket. The lower end of the central fat extraction pipe 23 is provided with a fat inlet 232. One side of the upper part of the central fat extraction pipe 23 has a fat outlet 233. A first quick-insert pipe joint 234 is connected at the fat outlet 233. A fat extraction auger 24 is rotatably assembled in the central fat extraction pipe 23. The fat extraction auger 24 extends from one end of the central fat extraction pipe 23 to the other end. The fat extraction auger 24 includes a central rotating shaft 241 and spiral conveying blades 242 spirally arranged thereon. The outer diameter of the spiral conveying blades 242 is the same as the inner diameter of the central fat extraction pipe 23. The upper end of the central rotating shaft 241 extends outwards after passing through the sealing cover 231. The upper end of the central rotating shaft 241 is rotationally and sealingly matched with the sealing cover 231. The worm and worm gear 252 mechanism includes a worm wheel 251 and a worm 252 in transmission cooperation. The worm wheel 251 is rotatably installed at the upper end of the central rotating shaft 241. One end of the worm 252 has a first transmission quick-insert joint 2521. It also includes a follow-up floating disk 22 for fitting the liquid surface and moving with the liquid surface. The follow-up floating disk 22 includes a sliding sleeve 221 slidably assembled outside the central fat extraction pipe 23 and a sealing disk 222 fixed on the sliding sleeve 221. The outer periphery of the sealing disk 222 is used for sliding and sealing cooperation with the barrel wall of the standard grease bucket. The setting of the follow-up floating disk 22 can, on the one hand, perform intermediate positioning on the central fat extraction pipe 23, cooperate with the positioning bucket cover to form a two-point positioning structure, make the central fat extraction pipe 23 not easily deviate, and ensure more thorough fat extraction; on the other hand, the follow-up floating disk 22 can also follow the liquid surface to drop to scrape the residual grease on the barrel wall. There are multiple fat inlets 232, and they are circumferentially and evenly distributed on the side surface of the lower end of the central fat extraction pipe 23. The circumferentially and evenly distributed arrangement of the side surfaces of the fat inlets 232 ensures that even if the distance between the central fat extraction pipe 23 and the bottom of the bucket is relatively close, it does not affect the entering speed of the grease from the fat inlets 232. At least two support bearings 27 are provided on the central rotating shaft 241. The support bearings 27 include an inner ring 271, an outer ring 272 and a roller assembly 273. The inner ring 271 is sleeved and fixed on the central rotating shaft 241. The outer ring 272 is respectively fixed on the inner wall of the central fat extraction pipe 23 through at least three evenly distributed support rods 274. In this embodiment, there are three support bearings 27, and they are evenly distributed along the length direction of the central rotating shaft 241. The spiral conveying blades 242 are disconnected in a region corresponding to the position of the middle support bearing 27 to avoid movement interference between the spiral conveying blades 242 and the support bearings 27. In other embodiments, the spiral conveying blades 242 include an elastic rubber part vulcanized at the outer edge, and the elastic rubber part can be slidably and sealingly matched with the inner wall of the central fat extraction pipe 23 to improve the sealing performance of the conveyed grease.The setting of the elastic rubber part enables the spiral conveying blade 242 and the central fat extraction pipe 23 to form a sealed conveying structure, which can increase the conveying pressure of the grease and make it easier to overcome the resistance of the spring 312 and the piston 313 in the grease storage cylinder 31 and enter the grease storage cylinder 31. A fixed bracket is fixed outside the positioning cover body 21, and both ends of the worm 252 are rotatably assembled on the fixed bracket through bearings.

[0036] As Figure 5-8 shown, the electric grease gun 3 includes a grease storage cylinder 31, a drive motor 32, a ratchet mechanism 33 and a grease outlet plunger pair 34. The grease storage cylinder 31 has a grease replenishment port 311. A second quick insertion joint is connected to the grease replenishment port 311 through a grease replenishment hose. The drive motor 32 includes a motor output shaft 321. A second transmission quick insertion joint 3211 is provided at the outer end of the motor output shaft 321. The first and second transmission quick insertion joints 3211 can be quickly plugged and matched to achieve mutual transmission. The ratchet mechanism 33 is installed in the middle of the motor output shaft 321. The ratchet mechanism 33 includes an inner wheel 331, a pawl 332 and an outer wheel 333. The inner wheel 331 is fixedly connected to the motor output shaft 321. The pawl 332 is rotatably assembled on the inner wheel 331. The outer wheel 333 has an eccentric inner circular hole. A ratchet tooth 3331 is provided on the inner peripheral surface of the inner circular hole. The pawl 332 is in one-way transmission cooperation with the ratchet tooth 3331. When the motor output shaft 321 rotates reversely, the inner wheel 331 drives the outer wheel 333 to rotate through the pawl 332. The inner wheel 331 and the outer wheel 333 form an eccentric wheel mechanism. The grease outlet plunger pair 34 is driven by the eccentric wheel mechanism to pressurize and pump the grease in the grease storage cylinder 31 out. When the motor output shaft 321 rotates forward, the first quick insertion joint 234 is plugged and matched with the second quick insertion joint. The pawl 332 is disengaged from the ratchet tooth 3331. The second transmission quick insertion joint 3211 of the motor output shaft 321 can be inserted into the first transmission quick insertion joint 2521 of the worm 252 to drive the worm 252 to rotate, and the fat suction auger 24 rotates accordingly to convey the grease along the central fat extraction pipe 23 into the grease storage cylinder 31. The drive motor 32 is a speed regulating motor, and the forward rotation speed and the reverse rotation speed of the drive motor 32 can be respectively adjusted through a switch to control the grease replenishment speed and the grease outlet speed. The structure of the first transmission quick insertion joint 2521 includes a cross-shaped boss 25211 and a positioning round table 25212 spaced around the cross-shaped boss 25211. The structure of the second transmission quick insertion head includes a matching cross-shaped groove 32111. The drive motor 32 is a speed regulating motor, and the forward rotation speed and the reverse rotation speed of the drive motor 32 can be respectively adjusted through a switch to control the grease replenishment speed and the grease outlet speed. The electric grease gun 3 includes a detachable rechargeable battery 35. A spring 312 and a piston 313 are provided in the grease storage cylinder 31. The grease replenishment port 311 is provided at one end far from the spring 312. An annular groove 3332 is provided on the outer peripheral surface of the outer wheel 333. One end of the plunger of the grease outlet plunger pair 34 slides in the annular groove 3332 through a hooking structure.

[0037] During normal operation, the electric grease gun 3 controls the reverse rotation of the motor through a switch. The output shaft 321 of the motor rotates in reverse, driving the inner wheel 331 to rotate in reverse. The ratchet 332 on the inner wheel 331 meshes with the ratchet teeth 3331 on the outer wheel 333 for transmission, driving the outer wheel 333 to rotate in reverse. The outer wheel 333, as part of the eccentric wheel mechanism, can drive the grease outlet plunger pair 34 to act, pumping out the grease in the grease storage cylinder 31 and high-pressure pumping it out for lubricating the lubrication points. When the grease storage cylinder 31 needs to be refilled, open the lid of the standard grease barrel, put the barrel-inserting fat extraction device 2 into the barrel from the barrel mouth, and ensure that the positioning cover 21 is fixedly covered at the barrel mouth position, so as to realize the positioning of the central fat extraction pipe 23. At this time, the central fat extraction pipe 23 is located at the center of the grease barrel, and the lower end of the central fat extraction pipe 23 is inserted into the grease until the bottom of the barrel. Then connect the second quick insertion joint of the electric grease gun 3 with the first quick insertion joint 234 of the barrel-inserting fat extraction device 2, and dock the second transmission quick insertion joint 3211 of the electric grease gun 3 with the first transmission quick insertion joint 2521 of the barrel-inserting fat extraction device 2. Then control the motor to rotate forward through the switch of the electric grease gun 3. At this time, due to the structure of the ratchet teeth 3331 and the ratchet 332 being one-way meshing, the two are disengaged at this time, that is, the inner wheel 331 cannot transmit power to the outer wheel 333, and the inner wheel 331 idles with the output shaft 321 of the motor. However, the output shaft 321 of the motor can drive the worm 252 to rotate through the transmission of the second transmission quick insertion joint 3211 and the first transmission quick insertion joint 2521, drive the turbine 251 and the central rotating shaft 241 to rotate, drive the spiral conveying blade 242 to rotate, and utilize the conveying mechanism formed by the spiral conveying blade 242 and the central fat extraction pipe 23 to convey the grease in the grease barrel upward. The grease successively passes through the grease inlet 232, the grease outlet 233, the first quick insertion joint 234, the second quick insertion joint, the grease replenishment hose, etc. of the central fat extraction pipe 23 and enters the grease storage cylinder 31 of the electric grease gun 3 for rapid grease replenishment. From the above working process, it can be seen that the present application can be directly adapted to the standard grease barrel. Through the cooperation of the positioning cover 21 of the barrel-inserting fat extraction device 2 and the barrel mouth, the positioning of the central fat extraction pipe 23 is realized, and the sealing protection of the barrel mouth is also formed. Then, by using the forward rotation of the electric grease gun 3 to drive the barrel-inserting fat extraction device 2 to suck the grease from the grease barrel and supplement it into the grease storage cylinder 31 of the electric grease gun 3, the effect of rapid self-grease replenishment is achieved, the grease replenishment efficiency is significantly improved, the grease replenishment process is more labor-saving, and the barrel-inserting fat extraction device 2 has a protective effect on the grease in the grease barrel, preventing dust, sundries, rainwater, etc. from falling into the grease barrel to contaminate the grease.

[0038] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should, by the same token, be included in the protection scope of the present invention.

Claims

1. The plug-in self-replenishing electric grease assembly is suitable for standard grease barrels, and is characterized by: include: The barrel-insertion liposuction device is used to be inserted into a standard grease barrel and to extract grease therefrom, and comprises a positioning cover body, a central liposuction tube, a liposuction auger and a turbine worm mechanism; the positioning cover body is used to cover the barrel opening of the standard grease barrel, the positioning cover body is fixed relative to the barrel opening, the central liposuction tube is fixed at the center of the positioning cover body, the top of the central liposuction tube is provided with a sealing cap, the lower end of the central liposuction tube is used to be inserted into the bottom of the barrel, the lower end of the central liposuction tube is provided with a grease inlet, and one side of the upper part of the central liposuction tube is provided with a grease outlet, and the grease outlet is connected with a first quick-insert pipe joint, A liposuction auger is rotatably mounted in the central liposuction tube, and the liposuction auger extends from one end of the central liposuction tube to the other end. The liposuction auger includes a central rotating shaft and a spiral conveying blade spirally arranged thereon, and the outer diameter of the spiral conveying blade is consistent with the inner diameter of the central liposuction tube. The upper end of the central rotating shaft passes through the cover and extends outward, and the upper end of the central rotating shaft is rotatably sealed with the cover. The worm gear mechanism includes a turbine and a worm gear that are transmission-matched, and the turbine is rotatably mounted on the upper end of the central rotating shaft, and one end of the worm gear has a first transmission quick-plug connector; The electric grease gun comprises a grease storage cylinder, a driving motor, a ratchet mechanism and a grease outlet plunger pair, the grease storage cylinder has a grease filling port, the grease filling port is connected to a second quick-insertion pipe joint through a grease filling hose, the driving motor comprises a motor output shaft, the outer end of the motor output shaft is provided with a second transmission quick-insertion joint, the first and second transmission quick-insertion joints can be quickly plugged and matched to achieve mutual transmission, the ratchet mechanism is installed in the middle of the motor output shaft, the ratchet mechanism comprises an inner wheel, a pawl and an outer wheel, the inner wheel is fixedly connected to the motor output shaft, the pawl is rotatably assembled on the inner wheel, the outer wheel has an eccentrically arranged inner circular hole, the inner circumferential surface of the inner circular hole is provided with a There are ratchets, and the pawls cooperate with the ratchet for one-way transmission. When the motor output shaft reverses, the inner wheel drives the outer wheel to rotate through the ratchet, and the inner wheel and the outer wheel constitute an eccentric wheel mechanism. The grease outlet plunger pair is driven by the eccentric wheel mechanism to pressurize the grease in the grease storage cylinder and pump it out. When the motor output shaft is in forward transmission, the first quick-connect pipe connector and the second quick-connect pipe connector are plugged and matched, the pawl is disengaged from the ratchet, and the second transmission quick-connect pipe connector of the motor output shaft can be inserted into the first transmission quick-connect pipe connector of the worm to drive the worm to rotate, and the liposuction auger rotates accordingly to transport the grease along the central liposuction tube to the grease storage cylinder.

2. The plug-in self-filling electric grease assembly adapted to a standard grease barrel according to claim 1 is characterized in that: The utility model comprises a follower floating plate for fitting the liquid surface and moving with the liquid surface, the follower floating plate comprises a sliding sleeve slidably assembled outside the central liposuction tube and a sealing plate fixed on the sliding sleeve, and the outer periphery of the sealing plate is used for sliding and sealing cooperation with the barrel wall of the standard grease barrel.

3. The plug-in self-filling electric grease assembly adapted to a standard grease barrel according to claim 1 is characterized in that: There are multiple fat inlets, which are evenly distributed along the circumference of the lower end side of the central liposuction tube.

4. The self-replenishing electric grease filling assembly for standard grease barrels according to claim 1 is characterized in that: At least two support bearings are arranged on the central rotating shaft, and the support bearings include an inner ring, an outer ring and a roller assembly. The inner ring is sleeved and fixed on the central rotating shaft, and the outer ring is fixed on the inner wall of the central liposuction tube through at least three evenly distributed support rods.

5. The self-replenishing electric grease filling assembly for standard grease barrels according to claim 4 is characterized in that: There are three support bearings, which are evenly distributed along the length direction of the central rotating shaft. The spiral conveying blade is disconnected from an area corresponding to the position of the middle support bearing to avoid interference between the movement of the spiral conveying blade and the support bearing.

6. The self-replenishing electric grease filling assembly for standard grease barrels according to claim 1, characterized in that: The spiral conveying blade comprises an elastic rubber part vulcanized at the outer edge, and the elastic rubber part can be slidably sealed with the inner wall of the central liposuction tube to improve the sealing performance of conveying grease.

7. The self-replenishing electric grease filling assembly for standard grease barrels according to claim 1, characterized in that: The structure of the first transmission quick-insertion connector includes a cross-shaped boss and a positioning round table spaced and arranged outside the cross-shaped boss, and the structure of the second transmission quick-insertion machine head includes an adaptive cross-shaped groove.

8. The self-replenishing electric grease filling assembly for standard grease barrels according to claim 1, characterized in that: The driving motor is a speed-regulating motor, and the forward rotation speed and reverse rotation speed of the driving motor can be adjusted respectively by a switch to control the fat filling speed and the fat output speed.

9. The self-replenishing electric grease filling assembly for standard grease barrels according to claim 1, characterized in that: A fixing bracket is fixed outside the positioning cover body, and two ends of the worm are rotatably assembled on the fixing bracket through bearings.

10. The self-replenishing electric grease filling assembly for standard grease barrels according to claim 1, characterized in that: The electric grease gun includes a removable rechargeable battery.

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