Portable electric grease gun

Abstract

The utility model relates to the technical field of electric grease guns, and discloses a portable electric grease gun which comprises a grease gun body, a grease barrel is installed at the top end of the grease gun body, an annular plate is fixedly connected to the outer end of the grease barrel, a first notch is formed in the side end of the annular plate, a sealing assembly is arranged in the first notch, and a second notch is formed in the sealing assembly. Through the arrangement of the limiting assemblies, the top cover and the oil cylinder are installed in a buckling mode, so that the phenomena that after long-term use, thread deformation and abrasion are possibly caused by friction or external force impact on threads, the sealing performance is reduced, grease is prone to seeping out of gaps, and the sealing performance is improved are avoided. Meanwhile, the buckle type installation can be completed without manually rotating for multiple circles, the buckle type installation is convenient to use, when the lubricating grease barrel needs to be frequently replaced or grease needs to be supplemented, the consumed time is short, and the influence on the working efficiency is avoided.

Description

Technical Field

[0001] This utility model relates to the field of electric grease gun technology, specifically to a portable electric grease gun. Background Technology

[0002] A grease gun is a manual tool used to add grease to mechanical equipment. It is widely used in lubrication applications in industries such as automobiles, ports, construction, machinery, power, chemicals, engineering machinery, mining, auto repair shops, oil change centers, metallurgy, shipyards, bearings, power tools, and papermaking. It features stable performance, fast grease injection, high oil pressure, and a wide range of applications.

[0003] Existing patent application CN202322452275.6 describes a portable electric grease gun, relating to the field of lubrication equipment technology. It solves the technical problem of existing grease guns having an unreasonable design, requiring manual disassembly and assembly of grease cartridges for replenishment, which is cumbersome, time-consuming, and labor-intensive, causing inconvenience in actual operation. When lubrication is needed, the drive mechanism drives the gear shaft via a transmission wheel set, moving the plunger towards the outlet of the grease cartridge, thus pushing the grease in the reservoir from the outlet to the equipment to be lubricated. When the grease in the reservoir is depleted, the outlet of the grease cartridge is inserted into a grease container, forming a sealed space. The drive mechanism then drives the gear shaft to move the plunger in the opposite direction, creating negative pressure within the reservoir, drawing grease from the grease container into the reservoir, thus completing the filling operation. The design is compact, easy for workers to carry and use, the grease cartridge is reusable, and lubrication efficiency is high.

[0004] The above solution has the following problems during implementation: the cap and the grease canister are connected by threads. After long-term use, the threads may deform and wear due to friction or external impact, resulting in a decrease in sealing performance. Grease can easily seep out from the gaps, contaminating the equipment or working environment. At the same time, the threaded connection requires manual rotation of multiple turns to complete disassembly and assembly. Especially when the grease canister needs to be replaced or grease needs to be replenished frequently (such as in industrial maintenance scenarios), it takes a long time and affects work efficiency. Therefore, a portable electric grease gun is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a portable electric grease gun that solves the problem in the prior art where the cap and grease cylinder are connected by threads. After long-term use, the threads may deform and wear due to friction or external impact, resulting in a decrease in sealing performance and easy leakage of grease from the gaps, which can contaminate the equipment or working environment.

[0006] This utility model provides the following technical solution: a portable electric grease gun, including a grease gun, an oil cylinder is installed at the top of the grease gun, an annular plate is fixedly connected to the outer end of the oil cylinder, a slot is opened at the side end of the annular plate, a sealing component is provided inside the slot, and a limiting component for connecting with the annular plate is provided at the top and bottom ends of the sealing component.

[0007] As a preferred embodiment of the above technical solution, a sealing ring is installed on the inner side of the slot.

[0008] As a preferred embodiment of the above technical solution, the side end of the ring plate is provided with a plurality of straight grooves, and each straight groove is provided with a circular groove at its side end.

[0009] As a preferred embodiment of the above technical solution, the sealing assembly includes a cover, a second groove is provided on the side end of the cover, a second sealing ring is installed on the inner side end of the second groove, and mounting grooves are provided at the top and bottom ends of the cover, with each limiting component located in each mounting groove.

[0010] As a preferred embodiment of the above technical solution, the side end of the cap is inserted into slot one, and the side end of the oil cylinder is inserted into slot two.

[0011] As a preferred embodiment of the above technical solution, the limiting component includes a spring, which is fixedly connected to the bottom of the mounting groove. A circular plate is fixedly connected to the top of the spring, a circular rod is fixedly connected to the top of the circular plate, a pull rod is fixedly connected to the top of the circular rod, and a pressing head is fixedly connected to the top of the pull rod.

[0012] As a preferred embodiment of the above technical solution, the round rod is adapted to the round groove, and the diameter of the pull rod is smaller than the width of the straight groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model, through the setting of the limiting component, uses a snap-fit ​​installation of the top cover and oil cylinder to avoid the situation where, after long-term use, the threads may deform or wear due to friction or external impact, resulting in decreased sealing performance and easy leakage of grease from the gaps, contaminating the equipment or working environment. At the same time, the snap-fit ​​installation does not require manual rotation of multiple turns to complete the disassembly and assembly. The snap-fit ​​installation is convenient to use and takes less time when frequent replacement of the grease cylinder or replenishment of grease is required, thus avoiding affecting work efficiency. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a portable electric grease gun;

[0016] Figure 2 This is a cross-sectional view of a portable electric grease gun.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0018] Figure 4 for Figure 1 A magnified schematic diagram of part B.

[0019] In the diagram: 1. Grease gun; 101. Grease cylinder; 102. Ring plate; 103. Groove one; 104. Sealing ring one; 105. Straight groove; 106. Circular groove; 2. Sealing assembly; 201. Cover; 202. Groove two; 203. Sealing ring two; 204. Mounting groove; 3. Limiting assembly; 301. Spring; 302. Circular plate; 303. Circular rod; 304. Pull rod; 305. Press head. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figures 1-4 As shown, this utility model provides a technical solution: a portable electric grease gun, including a grease gun 1, with a grease cylinder 101 installed at the top of the grease gun 1, and an annular plate 102 fixedly connected to the outer end of the grease cylinder 101. A slot 103 is formed on the side end of the annular plate 102, and a sealing ring 104 is installed on the inner side end of the slot 103. A sealing component 2 is provided inside the slot 103. Several straight grooves 105 are formed on the side end of the annular plate 102, and a circular groove 106 is formed on the side end of each straight groove 105. The top and bottom of the sealing component 2 are... Each end is equipped with a limiting component 3 for connecting with the ring plate 102. With the setting of the limiting component 3, the top cover and the oil cylinder 101 are installed by snap-fit ​​to avoid the situation where, after long-term use, the threads may be deformed or worn due to friction or external impact, resulting in a decrease in sealing performance and easy leakage of grease from the gaps, which may contaminate the equipment or working environment. At the same time, the snap-fit ​​installation does not require manual rotation of multiple turns to complete the disassembly and assembly. The snap-fit ​​installation is convenient for use in industrial maintenance scenarios where frequent replacement of the grease cylinder or replenishment of grease is required, which is time-saving and avoids affecting work efficiency.

[0022] As one implementation method in this embodiment, such as Figure 2 , Figure 3 and Figure 4As shown, the sealing assembly 2 includes a cover 201. A second groove 202 is provided on the side end of the cover 201. A second sealing ring 203 is installed on the inner side end of the second groove 202. The top and bottom ends of the cover 201 are provided with mounting grooves 204. Each limiting component 3 is located in each mounting groove 204. The side end of the cover 201 is inserted into the first groove 103, and the side end of the oil cylinder 101 is inserted into the second groove 202. In practice, the cover 201 is inserted into the first groove 103, and the oil cylinder 101 is inserted into the second groove 202. The use of the first sealing ring 104 and the second sealing ring 203 achieves double sealing and improves the sealing performance of the cover 201 and the oil cylinder 101.

[0023] As one implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the limiting component 3 includes a spring 301, which is fixedly connected to the bottom of the mounting groove 204. A circular plate 302 is fixedly connected to the top of the spring 301, and a circular rod 303 is fixedly connected to the top of the circular plate 302. A pull rod 304 is fixedly connected to the top of the circular rod 303, and a pressing head 305 is fixedly connected to the top of the pull rod 304. The circular rod 303 is adapted to the circular groove 106, and the diameter of the pull rod 304 is smaller than the width of the straight groove 105. In practice, during disassembly... By pinching the pressing heads 305 at both ends, the round rod 303 enters the mounting groove 204, and the round plate 302 compresses the spring 301 to retract. At this time, when the round rod 303 is not limited within the round groove 106, pinching the pressing heads 305 simultaneously pulls the pressing heads 305 to move the cover 201 horizontally. Since the diameter of the pull rod 304 is smaller than the width of the straight groove 105, the pull rod 304 passes through the straight groove 105, and the cover 201 disengages from the groove opening 103, completing the installation of the cover 201. For quick disassembly and installation, insert the cover 201 into slot 103 using the same installation method described above. At this time, insert the oil cylinder 101 into slot 202. The use of sealing ring 104 and sealing ring 203 together achieves double sealing, improving the sealing performance between the cover 201 and the oil cylinder 101. Then, release the pressing head 305. The spring 301 pushes against the circular plate 302, driving the circular rod 303 into the circular groove 106, thereby fixing the top cover in slot 103. This completes the quick installation of the top cover. The snap-fit ​​installation of the top cover and the oil cylinder 101 avoids the situation where, after long-term use, the threads may deform or wear due to friction or external impact, resulting in a decrease in sealing performance and easy leakage of grease from the gaps, contaminating the equipment or working environment. At the same time, the snap-fit ​​installation does not require manual rotation of multiple turns to complete the disassembly and assembly. The snap-fit ​​installation is convenient for use when it is necessary to frequently replace the grease cylinder or replenish grease (such as in industrial maintenance scenarios), which is time-saving and avoids affecting work efficiency.

[0024] Working principle: During disassembly, by pinching the pressing heads 305 at both ends, the round rod 303 enters the mounting groove 204. The round plate 302 compresses the spring 301 and retracts. At this time, when the round rod 303 is not limited within the round groove 106, by pinching the pressing head 305 and pulling it, the cover 201 is moved horizontally. At this time, the pull rod 304 passes through the straight groove 105, and the cover 201 is disengaged from the first groove 103, completing the quick disassembly of the cover 201. During installation, the cover 201 is inserted into the first groove 103 using the same installation method. At this time, the oil cylinder 101 is inserted into the second groove 202. With the use of the first sealing ring 104 and the second sealing ring 203, a double seal is achieved, improving the sealing effect of the cover 201. To ensure the seal between 01 and the oil cylinder 101, the pressing head 305 is released, and the spring 301 pushes against the circular plate 302, causing the circular rod 303 to insert into the circular groove 106, thereby fixing the top cover in the groove 103, thus completing the quick installation of the top cover. The snap-fit ​​installation of the top cover and the oil cylinder 101 avoids the situation where, after long-term use, the threads may deform or wear due to friction or external impact, resulting in a decrease in sealing performance and easy leakage of grease from the gaps, contaminating the equipment or working environment. At the same time, the snap-fit ​​installation does not require manual rotation of multiple turns to complete the disassembly and assembly. The snap-fit ​​installation is convenient for use when it is necessary to frequently replace the grease cylinder or replenish the grease (such as in industrial maintenance scenarios), which is time-saving and avoids affecting work efficiency.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A portable electric grease gun, comprising a grease gun (1), wherein a grease cylinder (101) is mounted on the top of the grease gun (1), characterized in that: The outer end of the oil cylinder (101) is fixedly connected to a ring plate (102). The side end of the ring plate (102) is provided with a slot (103). The inside of the slot (103) is provided with a sealing component (2). The top and bottom ends of the sealing component (2) are provided with limiting components (3) for connecting with the ring plate (102).

2. A portable electric grease gun according to claim 1, wherein: A sealing ring (104) is installed on the inner side of the slot (103).

3. The portable electric grease gun of claim 1, wherein: The ring plate (102) has a number of straight grooves (105) on its side end, and each straight groove (105) has a circular groove (106) on its side end.

4. The portable electric grease gun of claim 1, wherein: The sealing assembly (2) includes a cover (201), the side end of the cover (201) is provided with a slot two (202), the inner side end of the slot two (202) is provided with a sealing ring two (203), the top and bottom ends of the cover (201) are provided with mounting grooves (204), and each of the limiting components (3) is located in each mounting groove (204).

5. A portable electric grease gun according to claim 4 wherein: The side end of the cap (201) is inserted into the first slot (103), and the side end of the oil cylinder (101) is inserted into the second slot (202).

6. A portable electric grease gun according to claim 4 wherein: The limiting component (3) includes a spring (301), which is fixedly connected to the bottom of the mounting groove (204). A circular plate (302) is fixedly connected to the top of the spring (301), a circular rod (303) is fixedly connected to the top of the circular plate (302), a pull rod (304) is fixedly connected to the top of the circular rod (303), and a pressing head (305) is fixedly connected to the top of the pull rod (304).

7. A portable electric grease gun according to claim 6, characterized in that: The round rod (303) is adapted to the round groove (106), and the diameter of the pull rod (304) is smaller than the width of the straight groove (105).

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