Battery-type automatic grease gun

Abstract

The present invention relates to a battery-type automatic grease gun which is provided with two discharge ports of a spray nozzle and a grease nipple, and can selectively discharge, using different means, via the two discharge ports.

Description

Battery-powered automatic grease gun

[0001] The present invention relates to a battery-type automatic grease gun, and more particularly, to a battery-type automatic grease gun having two discharge ports, a spray nozzle and a grease nipple, and capable of selectively discharging grease to the two discharge ports in different ways.

[0002] Today, heavy equipment is evolving into expensive, multi-functional, multi-attachment equipment. However, lubrication systems, which significantly impact the performance and lifespan of heavy equipment, are currently limited to lubricating the equipment body or attachments.

[0003] Particularly in small and medium-sized equipment, the selection of attachments with various complex functions is rapidly developing, but automatic lubrication devices are still using conventional grease injection functions or attachments. Grease injectors centered on the equipment body are being selected.

[0004] This reality inevitably leads to a decrease in the equipment operating rate and shortened lifespan of equipment and attachments, which in turn leads to a decrease in the cost-effectiveness of the equipment.

[0005] To solve these problems, a composite automatic grease injection gun for small and medium-sized equipment was developed, which can spray equipment such as equipment cranes, lifts, cargo cranes, etc. with a wide slide boom, and complex driving equipment, wire cranes, pile drivers, etc., continuously inject very small amounts of grease into hydraulic breakers and chisels, etc., and individually inject general grease at high pressure into the main body lubrication parts and rotating parts of the equipment, thereby enabling multi-purpose use through a single grease gun. The need for a composite, battery-type automatic grease gun for small and medium-sized equipment is growing, which can greatly contribute to increasing the efficiency of lubrication equipment and extending the performance and lifespan of equipment and attachments.

[0006] [Prior Art Literature]

[0007] [Patent Document]

[0008] (Patent Document 0001) Republic of Korea Utility Model Registration No. 20-0477638 (published on July 7, 2015), "Automatic Lubricant Injection Gun Using Vehicle Power"

[0009]

[0010] In order to solve the above problems, the present invention aims to provide a battery-type automatic grease gun having two discharge ports, a spray nozzle and a grease nipple, and capable of selectively discharging the two discharge ports through different methods.

[0011] In order to achieve the above object, the present invention provides a battery-type automatic grease gun, characterized by including a driving unit including a motor and a gear to provide piston motion to a piston (P); a distribution unit extended from the driving unit and having a piston inserted therein to provide piston motion; a grease container assembly coupled to the distribution unit and containing grease therein; a spray nozzle, which is a plurality of discharge ports connected to the distribution unit; and a grease nipple.

[0012] At this time, the driving unit is characterized in that a breaker operation signal connector is formed to operate the grease gun in 'breaker operation mode' when the breaker operation signal is connected, and to release grease injection when the connection is disconnected.

[0013] At this time, the grease container assembly of the grease gun is formed of a transparent or translucent material, and the grease container assembly is characterized in that it includes a holder to which a magnet is attached.

[0014] At this time, the distribution unit is characterized in that a check-type air vent for discharging air inside the grease container assembly to the outside is formed in a direction perpendicular to the piston.

[0015] At this time, the grease container assembly is configured to be compatible with a 'grease refillable cartridge' or a 'bulk cartridge', and the 'grease refillable cartridge' is a transparent or translucent structure that can be refilled multiple times, and includes upper and lower blocking covers, and when a certain amount or more of grease is refilled at a location adjacent to the upper blocking cover, a cartridge air vent is formed that prevents further grease from being filled, and the grease container assembly is characterized by having a follower with a double seal structure so that grease cartridges having different structures can be used.

[0016] At this time, the battery-type automatic grease gun is further provided with a grease flow meter, and the grease flow meter is characterized in that when a user sets a certain discharge capacity, the grease gun is automatically stopped when a capacity exceeding the preset capacity is discharged.

[0017] The battery-type automatic grease gun according to the present invention has two discharge ports, a spray nozzle and a grease nipple, and enables selective discharge through the two discharge ports in different ways, thereby enabling grease to be used in the appropriate location.

[0018] FIG. 1 is a perspective view of a battery-type automatic grease gun according to an embodiment of the present invention.

[0019] Figure 2 is a cross-sectional view of a battery-type automatic grease gun according to an embodiment of the present invention.

[0020] Figure 3 is a cross-sectional view of a driving unit of a battery-type automatic grease gun according to an embodiment of the present invention.

[0021] Fig. 4 is a cross-sectional view of a distribution unit of a battery-type automatic grease gun according to an embodiment of the present invention.

[0022] FIG. 5 is a cross-sectional view of a grease container assembly of a battery-type automatic grease gun according to an embodiment of the present invention.

[0023] Figure 6 is a perspective view of a spray nozzle of a battery-type automatic grease gun according to an embodiment of the present invention.

[0024] Figure 7 is a cross-sectional view of a spray nozzle of a battery-type automatic grease gun according to an embodiment of the present invention.

[0025] FIG. 8 is a perspective view of a grease nipple of a battery-type automatic grease gun according to an embodiment of the present invention.

[0026] FIG. 9 is an exemplary drawing of a grease cartridge applicable to a grease container assembly of a battery-type automatic grease gun according to an embodiment of the present invention.

[0027] The following detailed description of the present invention provides examples of embodiments in which the present invention may be practiced, and reference is made to the accompanying drawings, which illustrate examples of such embodiments. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention, while different from each other, are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention. Furthermore, it should be understood that the positions or arrangements of individual components within each described embodiment may be changed without departing from the spirit and scope of the present invention.

[0028] Accordingly, the detailed description set forth below is not intended to be limiting, and the scope of the present invention is defined solely by the appended claims, along with the full scope equivalent to what such claims, if properly described, would encompass. Similar reference numerals in the drawings designate the same or similar features throughout.

[0029] The terms used in this invention have been selected from widely used, current terms, taking into account the functions of the invention. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Furthermore, in certain cases, terms may be arbitrarily selected by the applicant, in which case their meanings will be described in detail in the relevant description of the invention. Therefore, the terms used in this invention should not be defined simply as names, but rather based on their inherent meanings and the overall content of the invention.

[0030] When it is said in the present invention that a part “includes” a certain component, this does not mean that other components are excluded, but rather that other components may be included, unless otherwise specifically stated.

[0031]

[0032] Automatic grease guns are typically categorized as either bulk-only or cartridge-only depending on the grease selection criteria. 1) Bulk-type grease guns are refilled from grease barrels and used, while 2) cartridge-type grease guns are filled in disposable cartridge containers and disposed of after use, a global reality. Therefore, the battery-type automatic grease gun according to the present invention fundamentally blocks the source of environmental pollution that continuously occurs.

[0033] Typically, equipment lubrication devices are divided into a main body and an attachment, and the main body lubrication part of the equipment is typically periodically injected with grease, either automatically or manually, during use. Depending on its structure, performance, and operating conditions, some attachments automatically periodically inject special grease of different types, but most are injected manually. Therefore, the battery-type automatic grease gun according to the present invention allows for combined use on both the main body and attachment.

[0034] Typically, the power supply for the grease injection gun is supplied from the limited power source of the equipment. Alternatively, battery-powered grease guns use AC power to recharge the battery. Furthermore, although there are various specifications of batteries already on the market, they cannot be used interchangeably and are limited to batteries manufactured by the grease gun manufacturer. Therefore, even for a single piece of equipment, the type of grease injected into the equipment body and attachment often varies depending on the lubricated area. Therefore, the battery-powered automatic grease gun according to the present invention diversifies the driving power and operating method of the grease gun.

[0035] Meanwhile, 1) in the case of cartridge use, various types of grease cartridges on the market are generally used. In some cases, only a limited range of cartridges from the grease cartridge manufacturer must be used. In the case of bulk use, a grease container is typically inserted into the grease inside a grease barrel and the grease is directly sucked into the grease gun container for use. In this case, foreign substances are inserted and grease residue remains in the barrel, causing difficulties in post-disposal of the grease residue. Therefore, the battery-type automatic grease gun according to the present invention allows for the use of various types of grease and eliminates the generation of grease residue or waste after use.

[0036] Meanwhile, 1) for equipment such as boom cranes, wire rope cranes, or forklift sliding surfaces that require grease application over a wide area, grease is applied manually. 2) for hydraulic breakers that operate quickly in a short period of time, grease is injected manually, and in the case of some very small number of breakers, a very small amount of grease is automatically injected only when the breakers operate. However, grease is injected into the main body of the equipment manually or using a separate automatic grease injector. Therefore, the battery-type automatic grease gun according to the present invention allows for complex use by diversifying the grease lubrication function and method.

[0037] Meanwhile, both manual and electric grease guns are typically stored in a separate storage location and removed from the storage location when in use. However, some lubricating areas require holding the gun for a considerable amount of time to inject large amounts of grease, which is inconvenient and reduces efficiency. Therefore, the battery-powered automatic grease gun according to the present invention facilitates the attachment and storage of the grease gun.

[0038] In addition, the grease gun container or grease cartridge is generally made of an opaque material, making it difficult to visually confirm the remaining grease flow rate and injection amount in the grease container or grease cartridge. Therefore, the battery-type automatic grease gun according to the present invention allows the remaining grease amount in the grease gun container to be visually confirmed.

[0039] Typically, grease guns use the five senses to monitor the grease injection status by sensing the operating noise of the drive unit and the pressure discharge status of the grease injection hose. Some electric grease guns use an LCD screen to monitor the amount of grease injected and the status of the injection operation. Therefore, the battery-powered automatic grease gun according to the present invention allows users to check the grease gun's functionality before use.

[0040] When used in bulk mode, electric grease guns can cause small air pockets to enter the grease container. When used in cartridge mode, the grease cartridge itself can be said to be free of air pockets, but air pockets can still form during use due to the pressure difference between the grease discharge pressure and the grease filling pressure. In this case, if the air pocket control valve is not optimally positioned and used to remove air pockets, significant inconveniences can occur and the efficiency of the electric grease gun can be reduced. Therefore, the battery-powered automatic grease gun according to the present invention facilitates the easy removal of air pockets.

[0041] Typically, electric grease guns operate at a relatively fast rate, so the stroke / flow rate is fixed. However, if the operating time is not controlled, the injection amount cannot be controlled, and thus an accurate amount cannot be injected. Therefore, the battery-powered automatic grease gun according to the present invention is equipped with a grease flow meter.

[0042] Typically, electric grease guns have a single outlet, through which grease is discharged. Therefore, a composite grease gun has two outlets, and depending on the function selected, only one outlet cannot be used as a selective function. Therefore, the battery-powered automatic grease gun according to the present invention has dual outlets.

[0043]

[0044] Hereinafter, a battery-type automatic grease gun according to the present invention will be described in detail with reference to the attached drawings.

[0045] FIG. 1 is a perspective view of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of a driving unit of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 4 is a cross-sectional view of a distribution unit of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 5 is a cross-sectional view of a grease container assembly of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 6 is a perspective view of a spray nozzle of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 7 is a cross-sectional view of a spray nozzle of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 8 is a perspective view of a grease nipple of a battery-type automatic grease gun according to an embodiment of the present invention, FIG. 9 is a cross-sectional view of a grease nipple of a battery-type automatic grease gun according to an embodiment of the present invention, and FIG. 10 is an exemplary view of a grease cartridge applicable to a grease container assembly of a battery-type automatic grease gun according to an embodiment of the present invention.

[0046]

[0047] A battery-type automatic grease gun according to the present invention, as illustrated in FIGS. 1 and 2, comprises: a driving unit (100) including a motor (110) and a gear (120) for providing piston motion to a piston (P); a distribution unit (200) extending from the driving unit (100) and having a piston (P) inserted therein to provide piston motion; a grease container assembly (300) coupled to the distribution unit (200) and containing grease therein; a spray nozzle (SN) which is a plurality of discharge ports connected to the distribution unit (200); and a grease nipple (N).

[0048]

[0049] The above driving unit (100), as shown in FIG. 3, includes a motor (110) and a gear (120) to provide piston motion to the piston (P).

[0050] The above driving unit (100) includes a battery pack (130) for driving a motor (110). The lower part of the driving unit (100) of the battery-type automatic grease gun according to the present invention is configured to allow a battery to be fastened in a slide structure, so that 1) when used directly connected to the equipment power source or when using a battery, the upper part of the direct power adapter or the rechargeable battery is configured to have the same slide structure as the lower part of the battery-type automatic grease gun, so that it can be easily replaced. 2) When a battery of another manufacturer is to be used, a slide-type adapter having a structure that allows the battery and the lower part of the grease gun to be fastened is used. Accordingly, the power source of the battery-type automatic grease gun according to the present invention can be used without being restricted in any case.

[0051] Meanwhile, the driving unit (100) may further include a grease gun switch (140) for controlling driving.

[0052] The above motor (110) transmits rotational power to the upper gear (120). The motor may be a brushless motor, and the gear (120) may be formed of a multi-stage planetary gear. The gear (120) may include a sliding gear (122), and the sliding gear (122) converts the rotational motion of the motor (110) and the gear (120) into a reciprocating motion and transmits it to the piston (P).

[0053] A controller (100C, not shown) may be provided at a specific location inside or outside the above driving unit (100). This is referred to as a control unit.

[0054] The battery-type automatic grease gun according to the present invention uses a brushless motor (110) and a multi-stage planetary gear (120) to control the number of times the grease gun is driven and discharges grease at a constant discharge amount at a constant time through a controller (100C, not shown).

[0055] The battery-type automatic grease gun according to the present invention can also adjust the position of the piston (P) driven by the piston. Accordingly, by differently adjusting the position where the grease is sucked in and varying the discharge amount or stroke, grease is discharged in an amount appropriate for various purposes.

[0056] The above driving unit (200) uses a dual multi-stage planetary gear (120) and a sliding gear (122) to maintain the maximum discharge pressure according to the RPM control. 1) A multi-stage planetary gear (120) is fastened to the grease gun body, and a sliding gear (122) that operates the grease gun piston is additionally inserted into the upper part of the grease gun, thereby maximizing the torque of the grease gun. The rotation speed of the grease gun is varied according to the user's selection of the grease gun mode, and in this case, a certain pressure or higher is maintained.

[0057]

[0058] As shown in FIG. 4, the above distribution unit (200) extends to the driving unit (100) and has a piston (P) inserted therein to provide piston movement.

[0059] The above distribution unit (200) is coupled to a grease container assembly (300) at the bottom. The distribution unit (200) has a grease suction space (210S) formed directly above where the grease container assembly (300) is coupled. Meanwhile, the grease suction space (210S) is connected to the main pipe (220S), and the piston (P) pushes grease from the grease suction space (210S) into the main pipe (220S) through a reciprocating motion.

[0060] The above main pipe (220S) is extended for a certain section and then divided into a first distribution pipe (230S) and a second distribution pipe (240S). More specifically, the first distribution pipe (230S) is formed by extending in the longitudinal direction of the main pipe (220S), and the second distribution pipe (240S) is formed by extending vertically upward with respect to the main pipe (220S).

[0061] The first distribution pipe (230S) is a pipe for connecting to a spray nozzle (SN), and a first distribution pipe joint (232) is formed on the inner wall to enable other members to be connected. The first distribution pipe (230S) may have a diameter that is larger than that of the main pipe (220S). This is to provide a space in which the spray nozzle (SN), etc., is connected. Accordingly, the first distribution pipe (230S) may have an expanded tapered surface (234) formed so that it has a diameter that is larger than that of the main pipe (220S). At this time, it would be appropriate for members such as the spray nozzle (SN) connected to the first distribution pipe (230S) to be inserted only to a depth that does not touch the part where the first distribution pipe (230S) and the main pipe (220S) are connected, i.e., the expanded tapered surface (234), so as not to block the pipe.

[0062] The above second distribution pipe (240S) is a pipe for connecting to a grease nipple (N), and a second distribution pipe joint (242) is formed on the inner wall to enable other members to be connected. Meanwhile, the second distribution pipe (240S) may be formed to extend vertically upward from the first distribution pipe (230S). When the second distribution pipe (240S) extends from the first distribution pipe (230S), the grease in the main pipe (220S) enters the second distribution pipe (240S) along the expanded tapered surface (234) of the first distribution pipe (230S). The above second distribution pipe (240S) has a space with an expanded diameter at the top compared to the diameter of the area where it is first connected to the main pipe (220S) or the first distribution pipe (230S), in order to provide a space for joining other parts. The grease nipple (N) is connected via a grease check fitting (GCF) and a grease hose (H), and the grease check fitting (GCF) is connected to the second distribution pipe (240S).

[0063] Meanwhile, a check-type air vent (250) is formed in the distribution unit (200) to discharge air inside the grease container assembly (300) to the outside. It is preferable that the check-type air vent (250) is coupled in a direction perpendicular to the piston (P). In the battery-type automatic grease gun according to the present invention, a check-type air vent (250) is formed at the upper end of the grease suction space (210S) in a direction perpendicular to the piston (P), and the check-type air vent (250) has a check structure so that it operates only when air is generated, thereby discharging the air to the outside. That is, in order to remove air inside the grease container generated during use, a check-type air vent (250) is installed at the upper end of the piston (P) and immediately above the grease suction space (210S), so that when the piston (P) is operated, air pockets generated in the grease container by the reciprocating operation of the piston (P) are immediately discharged to the outside and can be visually identified.

[0064]

[0065] The above grease container assembly (300) is coupled to the distribution unit (200) as shown in FIG. 5 and contains grease inside.

[0066] The above grease container assembly (300) includes a grease container (310) having a space inside, a pulling member (320) formed inside the grease container (310), an elastic spring (330) formed on the outside of the pulling member (320), and a follower (340) having a double seal structure that is elastically supported by the elastic spring (330).

[0067] The grease container (310) has a circular shape, with one side open and the other side closed. The open portion of the grease container (310) is connected to the distribution unit (200). The grease container (310) is made of a transparent or translucent material so that the remaining amount of grease and the amount injected can be visually confirmed.

[0068] The above pulling member (320) is formed within the grease container (310) and is exposed to the outside by penetrating the closed portion at the bottom of the grease container (310). The space of the pulling member (320) exposed to the outside of the grease container (310) has a curved shape to make it easy for a user to pull.

[0069] The above elastic spring (330) is fixed to the closed part at the bottom of the grease container (310) and applies elastic force upward.

[0070] The above grease container assembly (300) has a follower (340) with a double seal structure to enable use of a grease cartridge (360) having a different structure. The follower (340) with a double seal structure may include a first follower seal (341) and a second follower seal (342). Accordingly, the follower (340) with a double seal structure manufactures the grease follower seal as a double structure of the first follower seal (341) and the second follower seal (342), so that even if one of the first follower seal (341) and the second follower seal (342) allows an air pocket, the remaining seal on the rear side blocks it to prevent air from flowing into the grease filling portion.

[0071] The follower (340) of the above-described double-seal structure is connected to the pulling member (320) and is elastically supported by an elastic spring (330). That is, the follower (340) of the above-described double-seal structure has a characteristic of returning toward the open area of ​​the grease container (310). Through this, the follower (340) of the above-described double-seal structure can continuously push up grease into the grease suction space (210S) of the distribution unit (200). The follower (340) of the above-described double-seal structure makes the structure of the grease follower seal flexible so that different grease cartridges can be used. Through this, the follower (340) of the above-described double-seal structure can be used for various grease cartridges.

[0072] Meanwhile, the grease container assembly (300) includes a holder (350) to which a magnet (352) is attached. It is preferable that the holder (350) to which the magnet (352) is attached be connected in a ring shape to the outer periphery of the grease container (310).

[0073] The above grease container assembly (300) is compatible with a 'grease refillable cartridge (361)' or a 'bulk cartridge (362)' as shown in Fig. 9. This is not limited to this, and 'disposable cartridges' may also be compatible.

[0074] The above-mentioned 'grease rechargeable cartridge (361)' is a transparent or translucent structure that can be refilled multiple times, and includes an upper blocking cover (3611) and a lower blocking cover (3612). The upper blocking cover (3611) and the lower blocking cover (3612) are inserted into the 'grease rechargeable cartridge (361)' to a certain extent to block the inner periphery of the 'grease rechargeable cartridge (361)' to ensure complete sealing.

[0075] The above-described 'grease-filled cartridge (361)' has a cartridge air vent (361h) that prevents further grease filling when a certain amount or more of grease is refilled at a location adjacent to the upper blocking cover (3611). The cartridge air vent (361h) has a shape of a hole penetrating the outer and inner peripheries of the 'grease-filled cartridge (361)', and is preferably formed at a location not lower than the depth at which the upper blocking cover (3611) is inserted into the 'grease-filled cartridge (361)'.

[0076] The method for refilling grease into the above-mentioned 'grease rechargeable cartridge (361)' is to remove the upper cover (3611) and the lower cover (3612), insert the upper cover (3611) into the grease container with the part where it was combined facing upwards, insert a piston such as a grease refill follower into the inside of the 'grease rechargeable cartridge (361)' and pull it so that the grease is drawn into the inside of the 'grease rechargeable cartridge (361)'. Meanwhile, when the grease rises to the height where the cartridge air vent (361h) is formed, the internal pressure of the 'grease rechargeable cartridge (361)' is relieved through the cartridge air vent (361h), and the grease is no longer raised by the piston. Through this, when a certain amount of grease is filled, the cartridge air vent (361h) is installed so that no more grease is filled. At this time, if it is confirmed that the grease is no longer rising by the piston, the lower part of the 'grease rechargeable cartridge (361)' is blocked with the lower blocking cover (3612). Then, after removing the piston of the grease recharge follower, etc., the upper blocking cover (3611) is fitted to the 'grease rechargeable cartridge (361),' so that the cartridge air vent (361h) is blocked by the upper blocking cover (3611), and the grease of the 'grease rechargeable cartridge (361)' is prevented from leaking to the outside through the cartridge air vent (361h).

[0077] Meanwhile, the 'bulk cartridge (362)' is typically used by inserting a grease container into the grease inside a grease barrel and directly sucking the grease into the grease gun container. In this case, foreign substances are inserted and grease residue remains in the barrel, making it difficult to dispose of the remaining grease after use.

[0078] Meanwhile, the grease container assembly (300) of the battery-type automatic grease gun according to the present invention can be used by directly refilling grease from the barrel into the grease container (310) using a grease follower for the barrel. Alternatively, when using a grease cartridge, a seal for a commercially available grease cartridge or a cartridge for the present grease gun can be used to form a seal having a structure that can be used for both cartridge use and bulk use.

[0079] That is, the grease container (310) and grease cartridge (360) of the container assembly (300) can be transparent or translucent containers, and can use a 'bulk cartridge' or a 'grease-filled cartridge'. The grease container assembly (300) forms a double-type follower seal (340) to prevent grease from flowing over the back of the follower seal, and a holder (350) having a detachable magnet (352) inserted into the outer periphery of the lower part of the grease container (310) allows the grease gun to be attached to the equipment.

[0080]

[0081] The battery-type automatic grease gun according to the present invention includes a plurality of discharge ports, a spray nozzle (SN) and a grease nipple (N), which are connected to a distribution unit (200).

[0082]

[0083] The above spray nozzle (SN) is connected to the distribution unit (200). Specifically, the spray nozzle (SN) is connected to the first distribution pipe connection unit (232) formed in the first distribution pipe (230S).

[0084] The above spray nozzle (SN) may include a first nozzle body (SN100), a second nozzle body (SN200), and a rotation control member (SN300), as shown in FIGS. 6 and 7.

[0085] The first nozzle body (SN100) is a tubular member having a first nozzle body conduit (SN110S) formed therein. A first nozzle body ball valve (SN112) is formed inside the first nozzle body conduit (SN110S) to control reverse flow of grease. The first nozzle body (SN100) has a first nozzle body first coupling portion (SN120) and a first nozzle body second coupling portion (SN130) formed on the outer periphery. At this time, the first nozzle body first coupling portion (SN120) is coupled to the first distribution pipe coupling portion (232) of the first distribution pipe (230S). In addition, the first nozzle body second coupling portion (SN130) is coupled to the second nozzle body (SN200). Meanwhile, a first nozzle body protrusion (SN140) may be formed in the area between the first nozzle body first coupling portion (SN120) and the first nozzle body second coupling portion (SN130) on the outer periphery of the first nozzle body (SN100). The first nozzle body protrusion (SN140) is configured to help easily couple the first nozzle body (SN100) to the second nozzle body (SN200) or the first distribution pipe (230S). By holding and turning the first nozzle body protrusion (SN140) using a tool, it is possible to easily couple it to another member.

[0086] The second nozzle body (SN200) has a second nozzle body conduit (SN210S) formed therein. A second nozzle body connecting portion (SN240) is formed in the second nozzle body conduit (SN210S), and the second nozzle body connecting portion (SN240) can be connected to the first nozzle body second connecting portion (SN130) of the first nozzle body (SN100). Meanwhile, the second nozzle body conduit (SN210S) is vertically penetrated upward, and a rotation control member (SN300) is inserted and connected thereto.

[0087] The above rotation control member (SN300) is vertically inserted into the second nozzle body conduit (SN210S) of the second nozzle body (SN200) and is rotatably coupled thereto. The rotation control member (SN300) is formed in a cylindrical shape. In one aspect, it is appropriate that a handle having one end retracted and the other end retracted is provided on the upper portion of the rotation control member (SN300) so as to have a direction indication function. A rotation control member conduit (SN310S) is formed in the rotation control member (SN300) by penetrating from a side surface of the cylinder, and a spray nozzle (SN320) is formed in the rotation control member conduit (SN310S). The above injection nozzle (SN320) is designed to have the function of a check valve, and when the injection nozzle (SN320) is rotated 180 degrees by the rotation of the rotation control member (SN300), it has a structure with a reverse check function so that it functions as a locking valve.

[0088] According to the present invention, a battery-type automatic grease gun is provided with a spray nozzle (SN) installed in the first distribution pipe (230S) so that grease having a predetermined discharge amount and discharge pressure or higher can be directly air-sprayed into the main pipe (220S), the first distribution pipe (230S), and the second distribution pipe (240S). If necessary, the spray nozzle (SN) can be installed at the end of the pipe using a pipe. That is, the spray nozzle (SN) can be used by directly connecting the spray nozzle (SN) to the first distribution pipe joint (232) depending on the grease spraying purpose, or it can be used by connecting a pipe of a predetermined length to the first distribution pipe joint (232) and fastening the spray nozzle (SN) to the end of the pipe.

[0089]

[0090] The above grease nipple (N) is connected to the distribution unit (200) via a grease check fitting (GCF) and a grease hose (H).

[0091] The above grease check fitting (GCF) is connected to a second distribution pipe joint (242) formed in a second distribution pipe (240S). A grease check fitting ball valve (GCFB) is formed inside the grease check fitting (GCF) to control reverse flow of grease.

[0092] A grease hose (H) is connected to the opposite side where the above grease check fitting (GCF) is connected to the second distribution pipe (240S), and a grease nipple (N) is connected to the end of the grease hose (H).

[0093] The grease nipple (N) above preferably has a push-and-lock function, as illustrated in Fig. 8. The push-and-lock function means that it can be immediately connected by pushing it into the desired injection port. In addition, it is appropriate for the grease nipple (N) to have a structure in which the injection of grease is blocked when it is not connected to a specific location, and in which the injection of grease is possible when it is connected to a specific location. The grease nipple having the push-and-lock function may utilize a grease nipple of a known technology. More specifically, the "Grease Injection Nipple" disclosed in Korean Patent Publication No. 10-1884703 (August 30, 2018) filed by the applicant of the present invention, or a grease nipple having a structure partially modified therefrom, may be utilized.

[0094] In addition to this, all push-and-lock grease nipples that can be pushed into the desired injection port and immediately connected will be applicable, as grease injection will be blocked if not connected to a specific location.

[0095]

[0096] Meanwhile, in a battery-type automatic grease gun according to another embodiment of the present invention, a breaker operation signal connector (150) may be formed in the driving unit (100) to operate the grease gun in a 'breaker operation mode' when a breaker operation signal is connected, and to release grease injection when the connection is disconnected.

[0097] Here, the brake operation signal refers to a signal transmitted to the brake operation signal connector (150) according to an action such as the equipment operator stepping on a pedal installed on the equipment, etc. For example, when folding or unfolding a specific part of the equipment, or extending or reducing the length of a specific part of the equipment, the equipment operator operates by stepping on a pedal, etc., and this refers to a signal transmitted by recognizing an action such as stepping on a pedal. The point in time when a specific part of the equipment is folded or unfolded, or the point in time when the length of a specific part of the equipment is extended or reduced, is the point in time when grease must be injected into the corresponding part of the equipment.

[0098] The above 'breaker operation mode' refers to an operation mode in which grease is discharged through the second distribution pipe (240S) and injected into the grease nipple (N) via the grease check fitting (GCF) and the grease hose (H). The above 'breaker operation mode' discharges grease only when an operation signal is input to the breaker operation signal connector (150), and injects a small amount of grease into the equipment each time an operation signal is input. In the above 'breaker operation mode', the grease gun is driven at a speed of approximately 5 to 10 rpm and can discharge grease at a speed of 5 cc / min. In the above 'breaker operation mode', grease is discharged only when a breaker operation signal is input. In this case, the user connects the breaker operation signal connector (150) to the equipment and attaches the grease gun to the body, etc. with a magnet, so that whenever the breaker is operated, a signal is automatically transmitted and grease is dispensed to a specific part of the equipment, allowing for convenient work. Meanwhile, in the 'breaker operation mode', it would be desirable to lock the spray nozzle (SN) by turning the rotation control member (SN300) of the spray nozzle (SN) 180 degrees.

[0099] Meanwhile, as an example of another operating mode of the battery-type automatic grease gun according to the present invention, there is a 'grease gun use mode'. The 'grease gun use mode' refers to an operating mode in which grease is discharged through the first distribution pipe (230S) and is discharged through a spray nozzle (SN), etc. In the 'grease gun use mode', the grease gun is driven at a speed of approximately 180 to 220 rpm and can discharge grease at a speed of 70 to 150 cc / min. In this case, the pressure in the pipe inside the distribution unit (200) increases, making it easy to spray at high pressure through the spray nozzle (SN), etc. Meanwhile, the 'grease gun use mode' is preferably used in a state in which the grease nipple (N) is separated from the injection point. If the grease nipple (N) is separated from the injection point, the grease nipple (N) is also blocked, so that grease is not discharged toward the grease nipple (N).

[0100] The protocol for controlling the battery-type automatic grease gun according to the present invention through the breaker operation signal connector (150) is as follows. 1) When the breaker is operated, a breaker operation signal is generated, so this signal is connected to the breaker operation signal connector (150), and when the breaker operation signal connector (150) is connected, the controller (100C, not shown) recognizes that the breaker is operated without a separate operation and operates the grease gun. 2) Alternatively, a vibration detection controller may be built in to automatically control the grease gun by inserting a vibration element into the controller (100C, not shown) inside the grease gun so that when a vibration of a certain decibel (dB) or higher occurs when the breaker is operated, the breaker operation mode is automatically released. 3) When the breaker operation signal connector (150) is disconnected or the breaker vibration disappears, the 'breaker operation mode' is automatically released.

[0101] In the 'breaker operation mode', which is the hydraulic breaker grease injection application mode, a breaker operation signal connector (150) to which a separate breaker operation controller signal is connected is inserted into the upper side of the grease gun, so that when the breaker operation signal connector (150) is connected to the equipment, the breaker is automatically recognized as being operated, so that it can be operated without a separate operation switch. In addition, when the breaker operation signal connector (150) is released, the 'breaker operation mode' is automatically canceled. In the 'breaker operation mode', which is the breaker operation mode, the minimum amount of grease preset by the user is continuously and automatically injected.

[0102] In this case, the grease nipple (N) of the battery-type automatic grease gun according to the present invention is a check-type quick nipple, and the grease gun and the hydraulic breaker are connected with a high-pressure hose, and a separate filter is inserted into the front end of the grease nipple (N) of the hydraulic breaker, and a quick-nit type grease nipple (N) is used to facilitate the removal of the grease pipe between the grease gun part and the breaker nipple part when removing the breaker.

[0103]

[0104] Meanwhile, in a battery-type automatic grease gun according to another embodiment of the present invention, an LCD window (LCD, not shown) may be installed on the upper front. 1) A controller (100C, not shown) having a built-in LCD window (LCD, not shown) is installed on the upper front of the battery-type automatic grease gun, and the controller (100C, not shown) selects the operating mode of the grease gun with a button switch and has an operating notification LED built in. 2) A set flow rate is displayed through a separately attached flow meter, etc., and when a set amount of grease is discharged, the grease gun is automatically and immediately stopped. 3) The controller (100C, not shown) has a function to display the operating status of a specific mode, and an LED is inserted to prepare for work at night.

[0105] In addition, the battery-type automatic grease gun is further provided with a grease flow meter (not shown), and the grease flow meter (not shown) automatically stops the grease gun when a predetermined discharge capacity is discharged in excess of the preset capacity when the user sets a predetermined discharge capacity.

[0106] Meanwhile, an LCD window (LCD, not shown) is formed on the front upper part of the grease gun, so that the user can select the 'grease gun use mode' and set the flow rate. When it is confirmed through the grease flow meter (not shown) that the flow rate exceeding the user's preset value is flowing, the controller (100C, not shown) automatically stops the operation of the grease gun.

[0107] At this time, the mode to be used can be easily selected using the button switch of the controller (100C, not shown), and various modes such as ‘grease gun use mode’ and ‘breaker operation mode’ can be used, and the use mode is displayed externally through the corresponding mode switch.

[0108] That is, a grease flow meter (not shown) is installed to input the flow rate, and when the input flow rate is discharged, the grease gun is automatically stopped. Accordingly, the battery-type automatic grease gun according to the present invention can minimize grease waste through the grease flow meter (not shown).

[0109]

[0110] In summary, the battery-type automatic grease gun according to the present invention has two outlets, and allows only one outlet selected from the spray nozzle (SN) or the grease nipple (N) to be used depending on the user's grease gun function selection and outlet determination, and the other outlet is automatically locked.

[0111] According to the present invention, a first nozzle body ball valve (SN112) is inserted in front of the piston (P) horizontal line of a battery-type automatic grease gun, and a spray nozzle (SN) including a rotation control member (SN300) and a spray nozzle (SN320) having a check valve function is connected to the end of the first distribution pipe (230S) so as to spray, thereby minimizing the pressure difference occurring at the same time between the grease discharge pressure and the spray pressure. In addition, the spray nozzle (SN320) has a reverse check valve function when rotated 180 degrees, so that when other discharge ports such as the second distribution pipe (240S) are used, it has a locking valve function. A push-and-lock grease nipple (N) of a special structure having a grease locking valve function is connected to the second distribution pipe (240S). In this case, when the spray nozzle (SN) is used, the grease nipple (N) automatically has a locking valve function. That is, when one outlet is used, the other outlets are locked, allowing the grease gun to be used for multiple purposes.

[0112] The battery-operated automatic grease gun according to the present invention is a multi-function grease gun that can selectively use 1) a grease gun function, 2) a grease spray function, and 3) a brake-only grease injection function. In addition, the battery-operated automatic grease gun according to the present invention can refill and use a grease cartridge multiple times and can use different types of grease cartridges. In addition, the battery-operated automatic grease gun according to the present invention can refill only a certain amount of grease into a grease cartridge. In addition, the battery-operated automatic grease gun according to the present invention can visually check the remaining amount of grease inside a grease container or grease cartridge and the amount of grease injected. In addition, the battery-operated automatic grease gun according to the present invention can be temporarily mounted on equipment during use or can be easily attached and detached for storage. In addition, the battery-operated automatic grease gun according to the present invention has two discharge ports, and each discharge port can automatically perform its function according to the selected grease gun mode. In addition, the battery-operated automatic grease gun according to the present invention can automatically inject grease into the breaker and stop the grease when the breaker is operated or released without a separate switch operation. In addition, the battery-operated automatic grease gun according to the present invention can use various direct current and alternating current rechargeable batteries from other manufacturers as the grease gun driving power source.

[0113] The battery-type automatic grease gun according to the present invention is economical because it can be applied to all equipment and attachments having different oil types, lubricating injection amounts, and injection cycles. That is, the battery-type automatic grease gun according to the present invention can be applied to 1) hydraulic brakers, 2) cranes and cargo cranes, 3) excavators and loaders, 4) rock drill machines, 5) other special mechanical equipment (etc. construction and mining equipment), 6) forklifts, etc., 7) other equipment, mechanical equipment, or plants where grease spray is needed.

[0114]

[0115] Although the present invention has been described with reference to the attached drawings, this is only one embodiment among various embodiments including the gist of the present invention, and the purpose is to enable those skilled in the art to easily practice it, and it is clear that the present invention is not limited to the embodiments described above. Therefore, the protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope by modification, substitution, replacement, etc., within the scope that does not depart from the gist of the present invention, will be included in the rights of the present invention. In addition, it is clearly stated that some components of the drawings are provided in an exaggerated or reduced form compared to the actual structure to more clearly explain the components.

[0116]

[0117] [Explanation of symbols]

[0118] 100: Drive unit

[0119] 200: Distribution Department

[0120] 300: Greek container assembly

[0121] SN: Spray nozzle

[0122] N: Greasenitble

Claims

1. A driving part including a motor and a gear to provide piston motion to a piston (P); a distribution part extended from the driving part and having a piston inserted therein to provide piston motion; a grease container assembly coupled to the distribution part and having grease contained therein; A battery-type automatic grease gun characterized by including a plurality of discharge ports, a spray nozzle; and a grease nipple, connected to the distribution unit.

2. In paragraph 1, A battery-type automatic grease gun characterized in that the driving unit is provided with a breaker operation signal connector that operates the grease gun in a 'breaker operation mode' when a breaker operation signal is connected, and stops grease injection when the signal is disconnected.

3. In paragraph 1, A battery-type automatic grease gun, characterized in that the grease container assembly of the grease gun is formed of a transparent or translucent material, and the grease container assembly includes a holder to which a magnet is attached.

4. In paragraph 1, A battery-type automatic grease gun characterized in that the distribution section has a check-type air vent formed in a direction perpendicular to the piston to discharge air inside the grease container assembly to the outside.

5. In paragraph 1, The above grease container assembly is compatible with 'grease refill cartridges' or 'bulk cartridges', The above 'grease refillable cartridge' is a transparent or translucent structure that can be refilled multiple times, and includes upper and lower cover caps. When a certain amount of grease is refilled in a location adjacent to the upper cover cap, a cartridge air vent is formed to prevent further grease from being refilled. A battery-type automatic grease gun characterized in that the grease container assembly has a follower with a double seal structure to enable the use of grease cartridges having different structures.

6. In paragraph 1, The battery-type automatic grease gun is further provided with a grease flow meter, and the grease flow meter is characterized in that when a user sets a certain discharge capacity, the grease gun is automatically stopped when a preset capacity or more is discharged.

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