Degassing device for standard lubricating grease barrel

Abstract

The invention relates to a degassing device for a standard lubricating grease barrel. The degassing device is used for solving the technical problem that bubbles are easily sucked into the standard lubricating grease barrel when lubricating grease is sucked from the standard lubricating grease barrel. Comprising a sealing disc used for being in sliding sealing fit with the barrel wall of a standard lubricating grease barrel, and an elastic sealing piece is arranged on the peripheral face of the sealing disc; the positioning structure is used for positioning and fixing relative to a standard lubricating grease barrel to prevent the sealing disc from inclining; a vacuum pump; the air pipe connector is installed on the sealing disc, one end of the air pipe connector is connected with an exhaust opening of the vacuum pump through the exhaust pipe, the other end of the air pipe connector is communicated with the area below the sealing disc, and air below the sealing disc can enter the exhaust pipe along the air pipe connector. The pressure detection module is installed between the air pipe connector and the vacuum pump and used for detecting the air pressure in the exhaust pipe.

Description

Technical Field

[0001] The invention relates to a degassing device for a standard grease barrel. Background Art

[0002] In the field of dry oil (grease) lubrication, mechanical equipment often uses electric fuel dispensers to add grease. For example, in the field of construction machinery, when the friction pair of construction machinery needs to be lubricated with grease, maintenance personnel or drivers need to insert the electric fuel dispenser into a standard grease barrel when using it. After starting the power, the electric fuel dispenser can extract the grease in the standard grease barrel and fill it to the lubrication point through a fuel gun. However, due to the extremely poor fluidity of grease, air bubbles are often trapped inside, and the bubbles cannot float up and be discharged from the viscous grease by themselves. After the grease with bubbles enters the electric fuel dispenser, it is added to the lubrication point or to the lubrication pump of the centralized lubrication system. The entry of bubbles into the lubrication point will cause the actual amount of grease added to the lubrication point to be insufficient, resulting in the problem of under-lubrication; bubbles entering the lubrication pump will cause the lubrication pump to be emptied or the distributor to fail, which will affect the normal operation of the centralized lubrication system.

[0003] Therefore, it is urgent to solve the technical problem that bubbles are easily sucked into grease when sucking grease from a standard grease barrel. Summary of the invention

[0004] The purpose of the present invention is to provide a degassing device for a standard grease barrel, so as to solve the technical problem that bubbles are easily sucked into the grease when the grease is sucked from the standard grease barrel.

[0005] The technical solution of the present invention is as follows: A degassing device for a standard grease barrel comprises: The cover assembly includes a sealing disk for slidingly sealingly cooperating with the barrel wall of a standard grease barrel, the outer peripheral surface of the sealing disk is an elastic sealing member; and also includes a positioning structure for positioning and fixing relative to the standard grease barrel to prevent the sealing disk from tilting; Vacuum pump; The air pipe joint is installed on the sealing disk, one end of the air pipe joint is connected to the air suction port of the vacuum pump through the air suction pipe, and the other end is connected to the area below the sealing disk, so that the air below the sealing disk can enter the air suction pipe along the air pipe joint; The air pressure detection module is installed between the air pipe joint and the vacuum pump to detect the air pressure in the exhaust pipe.

[0006] The beneficial effects of this solution are as follows: when in use, the original barrel cover of the standard grease barrel is removed, and the lid assembly of this solution is covered, so that the sealing disk and the inner wall of the standard grease barrel form a sealing matching structure. No matter how high the grease level in the standard grease barrel is, a sealed space will be formed between the liquid surface and the sealing disk. After starting the vacuum pump, the gas in the sealed space is quickly extracted from the air pipe joint and the exhaust pipe. When the suction reaches a certain vacuum degree, a part of the large bubbles trapped in the grease, especially those located near the grease liquid surface (due to improper operation, there are often more bubbles trapped in a certain depth near the grease liquid surface) will slowly surge out of the grease due to air pressure, the bubbles will burst, and the gas will be extracted; when the air pressure detection module shows that the air pressure has reached the set value, it proves that the gas suction is basically clean, at this time, the vacuum pump is turned off, and the degassing process is completed. It can be seen from the above process that this solution has the following advantages: 1. It can be sealed and docked with a standard grease barrel to form a sealed space, which is convenient for subsequent vacuuming operations; 2. After the sealing disk and the liquid surface form a sealed space, by evacuating the sealed space, not only the original air above the liquid surface is extracted, but more importantly, a vacuum can be formed in the sealed space, thereby forcing the bubbles below the grease liquid surface to slowly emerge, thereby achieving a certain degree of degassing effect on the grease. Since the operator is generally on the upper layer during the operation of the standard grease barrel, the bubbles are generally concentrated in the upper layer. Therefore, the bubbles in the upper layer of the grease can be extracted, which can largely solve the problem of bubbles being easily sucked into the grease when sucking grease from the standard grease barrel.

[0007] Furthermore, a liposuction module is provided on the cover assembly, and the liposuction module includes a liposuction port for passing through and extending below the sealing disk, and also includes a liposuction pump connected to the liposuction port through a liposuction tube. The liposuction module can directly suck grease after the vacuum pump sucks air, that is, when the sealing disk and the liquid level are in a vacuum state, thereby minimizing the possibility of the liposuction module sucking bubbles.

[0008] Furthermore, the liposuction module is a submerged barrel type electric oiler, and its liposuction pump is fixed relative to the sealing disk to move with the sealing disk. The structure of the submerged barrel type oiler can refer to the structure of the authorization announcement number CN 103075627 B. This solution combines the structure of the submerged barrel type oiler with vacuum extraction. After vacuuming the area between the sealing disk and the liquid surface and extracting part of the air in the grease, the submerged barrel type oiler can be used to directly suck the grease to the lubrication point or to the lubrication pump of the centralized lubrication system, thereby minimizing the entry of bubbles.

[0009] Furthermore, the liposuction module is a plug-in barrel type electric oiler, the length of its liposuction tube is consistent with the depth of a standard grease barrel, the liposuction port is used to extend to the bottom of the barrel, and the sealing plate and the liposuction tube are sealed and slidably matched.

[0010] Furthermore, the sealing disc is relatively fixed to the positioning structure. In such a technical solution, the cover assembly only needs to be located near the barrel opening, and the structure is the simplest.

[0011] Furthermore, a stirring motor and a stirring paddle are installed on the cover assembly. The stirring paddle passes through the sealing plate in a seal, and the paddle blades of the stirring paddle are located below the sealing plate to stir the grease below the sealing plate. The stirring paddle is mainly intended to completely remove the air in the grease. The stirring of the grease by the stirring paddle makes it possible for the bubbles in the lower layer or bottom layer to turn over to the upper layer. Combined with the vacuum pressure sucked between the sealing plate and the liquid surface, the bubbles in the grease are gradually turned out, floated, gushed out, burst, and sucked away, thereby achieving complete degassing of the grease step by step.

[0012] Furthermore, the blade is a spiral ribbon structure, and the maximum outer diameter of the blade is consistent with the minimum inner diameter of the standard grease barrel. The blade is a spiral ribbon structure, which can have better up and down rolling and left and right rolling effects, stir more evenly and quickly, and improve degassing efficiency.

[0013] Furthermore, the blades are a plurality of cross bars evenly distributed along the axial direction and the circumferential direction of the stirring blade, and the outer ends of the cross bars extend to the minimum inner diameter of the standard grease barrel. This solution has a simpler structure, lower cost and is more convenient to implement.

[0014] Furthermore, the positioning structure includes a buckle for matching with a standard grease barrel. The buckle structure is used as a positioning structure, mainly using the original buckle structure of the standard grease barrel to make the two match. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of Example 1 of a degassing device for a standard grease barrel of the present invention; Figure 2 This is a schematic diagram of the internal structure of Example 2 of a degassing device for a standard grease barrel of the present invention; Figure 3 This is a schematic diagram of the internal structure of Example 3 of a degassing device for a standard grease barrel of the present invention; In the figure: 1-standard grease barrel, 2-cover assembly, 21-sealing disk, 22-positioning structure; 3-vacuum pump, 4-air pipe connector, 5-exhaust pipe, 6-air pressure detection module, 7-liposuction port, 71-liposuction connector, 8-liposuction pump, 9-liposuction tube, 10-stirring motor, 11-stirring paddle, 111-paddle. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is 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 embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, 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 making creative work are within the scope of protection of the present invention.

[0018] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0019] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0020] Embodiment 1 of a degassing device for a standard grease barrel of the present invention: Figure 1 As shown, in this embodiment, the degassing device for the standard grease barrel 1 includes a cover assembly 2, a vacuum pump 3, an air pipe joint 4, an air pressure detection module 6, a liposuction module, a stirring paddle 11, etc.

[0021] Among them, the lid assembly 2 includes a sealing disk 21 for sliding and sealing with the barrel wall of the standard grease barrel 1, and the outer peripheral surface of the sealing disk 21 is an elastic seal; it also includes a positioning structure 22, which is used to position and fix relative to the standard grease barrel 1 to prevent the sealing disk 21 from tilting; the positioning structure 22 includes a buckle for matching with the standard grease barrel 1. The buckle structure serves as the positioning structure 22, and mainly utilizes the original buckle structure of the standard grease barrel 1 to make the two compatible. In this embodiment, the lid assembly 2 is an integrated structure, and the whole is similar to the original barrel cover of the standard grease barrel 1. The outer periphery of the sealing disk 21 is sealed with the barrel wall through an elastic rubber sealing ring. Since the barrel body has a certain taper, the elastic rubber sealing ring is selected from high-elastic rubber, and the skeleton material of the lid assembly 2 is metal.

[0022] The air pipe joint 4 is installed on the sealing disk 21, one end of the air pipe joint 4 is connected to the air extraction port of the vacuum pump 3 through the air extraction pipe 5, and the other end is connected to the area below the sealing disk 21. The air below the sealing disk 21 can enter the air extraction pipe 5 along the air pipe joint 4. The air extraction pipe 5 is preferably a hose. The air pressure detection module 6 is installed between the air pipe joint 4 and the vacuum pump 3, and is used to detect the air pressure in the air extraction pipe 5. In this embodiment, the air pressure detection module 6 is a readable pressure gauge, such as an electronic pressure gauge.

[0023] The cover assembly 2 is provided with a liposuction module, which includes a liposuction port 7 for passing through and extending below the sealing disk 21, and a liposuction pump 8 connected to the liposuction port 7 through a liposuction tube 9. The liposuction module is provided so that the grease can be directly sucked out after the vacuum pump 3 sucks out the air, that is, when the sealing disk 21 and the liquid level are in a vacuum state, thereby minimizing the possibility of the liposuction module sucking out bubbles. When using the liposuction module, it is best to tip over the standard grease barrel 1 so that the liposuction port 7 is filled with grease.

[0024] The cover assembly 2 is provided with a stirring motor 10 and a stirring paddle 11. The stirring paddle 11 passes through the sealing disk 21 in a sealed manner. The paddle 11 has a blade 111 located below the sealing disk 21 for stirring the grease below the sealing disk 21. The purpose of the stirring paddle 11 is to completely remove the air in the grease. The stirring of the grease by the stirring paddle 11 makes it possible for the bubbles in the lower layer or bottom layer to turn over to the upper layer. The pressure of the vacuum sucked between the sealing disk 21 and the liquid surface is then combined to cause the bubbles in the grease to gradually turn over, float, gush out, break, and be drawn away, thereby achieving complete degassing of the grease step by step. In this embodiment, the paddle 111 is a plurality of cross bars evenly distributed along the axial and circumferential directions of the stirring paddle 11, and the outer end of the cross bar extends to the minimum inner diameter of the standard grease barrel 1. This solution has a simpler structure, lower cost, and is more convenient to implement. In other embodiments, the paddle 111 is also a spiral belt structure, and the maximum outer diameter of the paddle 111 is consistent with the minimum inner diameter of the standard grease barrel 1. The blade 111 is a spiral belt structure, which can achieve better up-and-down and left-and-right rolling effects, stir more evenly and quickly, and improve the degassing efficiency.

[0025] When in use, the original barrel cover of the standard grease barrel 1 is removed, and the lid assembly 2 of the present solution is covered, so that the sealing disk 21 and the inner wall of the standard grease barrel 1 form a sealing matching structure. No matter how high the liquid level of the grease in the standard grease barrel 1 is, a sealed space will be formed between the liquid surface and the sealing disk 21. After starting the vacuum pump 3, the gas in the sealed space is quickly extracted from the air pipe joint 4 and the exhaust pipe 5. When the suction reaches a certain vacuum degree, a part of the large bubbles trapped in the grease, especially those located near the grease liquid surface (due to improper operation, there are often more bubbles trapped in a certain depth near the grease liquid surface) will slowly flow out of the grease due to air pressure, the bubbles will burst, and the gas will be extracted; when the air pressure detection module 6 shows that the air pressure has reached the set value, it proves that the gas suction is basically clean, and at this time, the vacuum pump 3 is turned off to complete the degassing process; then the standard grease barrel 1 is laid down, and the grease extraction module is started to extract the degassed grease and pump it to the lubrication point or the oil tank of the lubrication pump. It can be seen from the above process that the present solution can be adapted to seal and dock with the standard grease barrel 1 to form a sealed space, which is convenient for subsequent vacuuming operations; after the sealing disk 21 forms a sealed space with the liquid surface, by evacuating the sealed space, not only the original air above the liquid surface is extracted, but more importantly, a vacuum can be formed in the sealed space, thereby forcing the bubbles below the grease liquid surface to slowly emerge, thereby achieving a certain degree of degassing effect on the grease. Since the operator is generally on the upper layer during the operation of the standard grease barrel 1, the bubbles are generally concentrated in the upper layer. Therefore, the bubbles in the upper layer of the grease can be extracted, which can largely solve the problem of bubbles being easily sucked into the grease when sucking grease from the standard grease barrel 1.

[0026] Embodiment 2 of a degassing device for a standard grease barrel 1 of the present invention: Figure 2 As shown, the difference between this embodiment and embodiment 1 is that the liposuction module is a submerged barrel type electric oiler, and its liposuction pump 8 is fixed relative to the sealing disk 21 to move with the sealing disk 21. The structure of the submerged barrel type oiler can refer to the structure shown in the authorization announcement number CN 103075627 B. This solution combines the structure of the submerged barrel type oiler with vacuum extraction. After vacuuming the area between the sealing disk 21 and the liquid surface and extracting part of the air in the grease, the submerged barrel type oiler can be used to directly suck the grease to the lubrication point or to the lubrication pump of the centralized lubrication system, thereby minimizing the entry of bubbles.

[0027] Embodiment 3 of a degassing device for a standard grease barrel 1 of the present invention: Figure 3 As shown, the difference between this embodiment and embodiment 1 is that the liposuction module is a plug-in bucket type electric oiler, the length of its liposuction tube 9 is consistent with the depth of the standard grease barrel 1, the liposuction port 7 is used to extend to the bottom of the barrel, and the sealing plate 21 is sealed and slidably matched with the liposuction tube 9.

[0028] The above description 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 shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A degassing device for a standard grease barrel, characterized in that: include: A cover assembly includes a sealing disk for slidingly sealingly cooperating with the barrel wall of a standard grease barrel, wherein the outer peripheral surface of the sealing disk is an elastic sealing member; It also includes a positioning structure for positioning and fixing the sealing disc relative to a standard grease barrel to prevent the sealing disc from being skewed; Vacuum pump; The air pipe joint is installed on the sealing disk, one end of the air pipe joint is connected to the air suction port of the vacuum pump through the air suction pipe, and the other end is connected to the area below the sealing disk, so that the air below the sealing disk can enter the air suction pipe along the air pipe joint; The air pressure detection module is installed between the air pipe joint and the vacuum pump to detect the air pressure in the exhaust pipe.

2. A degassing device for a standard grease barrel according to claim 1, characterized in that: A liposuction module is arranged on the cover assembly. The liposuction module comprises a liposuction port which is used to pass through and extend below the sealing disk, and a liposuction pump which is connected to the liposuction port through a liposuction tube.

3. A degassing device for a standard grease barrel according to claim 2, characterized in that: The liposuction module is a sink-barrel type electric oiler, and its liposuction pump is fixed relative to the sealing disk to move with the sealing disk.

4. A degassing device for a standard grease barrel according to claim 3, characterized in that: The liposuction module is a plug-in barrel type electric oiler, the length of its liposuction tube is consistent with the depth of a standard grease barrel, the liposuction port is used to extend to the bottom of the barrel, and the sealing plate and the liposuction tube are sealed and slidably matched.

5. A degassing device for a standard grease barrel according to claim 1, characterized in that: The sealing disk and the positioning structure are relatively fixed.

6. A degassing device for a standard grease barrel according to claim 5, characterized in that: A stirring motor and a stirring paddle are installed on the cover assembly. The stirring paddle passes through the sealing disk in a seal. The paddle blades of the stirring paddle are located below the sealing disk to stir the grease below the sealing disk.

7. A degassing device for a standard grease barrel according to claim 6, characterized in that: The blade is a spiral belt structure, and the maximum outer diameter of the blade is consistent with the minimum inner diameter of the standard grease barrel.

8. A degassing device for a standard grease barrel according to claim 6, characterized in that: The blades are a plurality of cross bars which are evenly distributed along the axial direction and the circumferential direction of the stirring blade, and the outer ends of the cross bars extend to the minimum inner diameter of the standard grease barrel.

9. A degassing device for a standard grease barrel according to claim 6, characterized in that: The positioning structure includes a buckle for fitting and snapping into a standard grease barrel.

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