Grease filling device for filling grease into grease gun

By designing an oil filling device that includes a fixed rod, a limiting rod, a push rod, and a piston, the problems of waste and voids when refilling grease guns are solved, achieving complete filling and hygienic operation inside the grease gun.

CN223895652UActive Publication Date: 2026-02-10JIANGSU LIANYUNGANG PORT CO LTD
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Patent Information

Application Number
CN202520390588.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-02-10
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Existing grease guns can easily lead to grease waste and voids in the grease canister when refilling grease, increasing the workload for workers.

Method used

Design an oil dispenser that includes an oil dispensing cylinder. One end of the oil dispensing cylinder is a closed structure, and the other end is an open structure. A fixing rod, a limiting rod, a push rod, a piston, and a spring are provided. The piston is pushed by the push rod to push the grease from the oil dispensing cylinder into the oil filling cylinder of the grease gun, ensuring that the oil filling cylinder is filled completely.

Benefits of technology

This technology ensures that the grease gun can be completely filled with grease, avoiding grease waste and surface contamination, and improving the hygiene and efficiency of the operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223895652U_ABST
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Abstract

The utility model discloses a grease filling device for grease filling of a grease gun, which belongs to the technical field of grease filling devices and comprises a grease taking barrel, one end of the grease taking barrel is of a closed structure, the other end of the grease taking barrel is of an open structure, a group of fixing rods are arranged at the end of the closed structure of the grease taking barrel, a limiting rod is arranged on the fixing rods, and a push rod movably penetrates through the limiting rod. One end of the push rod penetrates through and extends into the oil taking barrel, a piston is arranged in the oil taking barrel and connected with the push rod, a spring is arranged between the oil taking barrel and the limiting rod and arranged on the outer side of the push rod, a limiting nut and a fixing piece are arranged on the push rod, one end of the spring is connected with the fixing piece, and the other end of the spring is connected with the oil taking barrel. According to the grease gun, the grease filling barrel of the grease gun can be compacted and filled with grease, the grease cannot be attached to the outer portion of the grease filling barrel of the grease gun, cleanliness and sanitation are achieved, and grease cannot be wasted.
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Description

Technical Field

[0001] This utility model relates to the field of grease dispenser technology, specifically to a grease dispenser for filling grease guns. Background Technology

[0002] A grease gun is a tool for dispensing grease. When the grease gun is low on grease, it needs to be replenished. Since grease is a solid-liquid mixture in a container, the current technology involves unscrewing the nozzle cap from the filling tube and then directly inserting the filling tube into the grease container to draw grease. However, when the grease gun is removed, its surface is covered in grease. The operator then wipes off the grease with cotton yarn, resulting in some grease being wasted. Furthermore, the filling tube contains air, so when it is inserted into the grease container to draw grease, the grease cannot be fully packed, creating voids in the filling tube. This results in less grease being dispensed, increasing the frequency of grease gun refills and increasing the workload for the worker. Utility Model Content

[0003] To address the technical problems mentioned in the background section, this utility model provides an oil dispenser for filling grease guns, with the following technical solution:

[0004] The device includes an oil sampling cylinder, which has a closed structure at one end and an open structure at the other end. A set of fixed rods is provided on the closed end of the oil sampling cylinder, and a limit rod is provided on the fixed rod. A push rod is movably inserted through the limit rod, and one end of the push rod passes through and extends into the oil sampling cylinder. A piston is provided inside the oil sampling cylinder, and the piston is connected to the push rod. A spring is provided between the oil sampling cylinder and the limit rod, and the spring is located on the outside of the push rod. A limit nut and a fixing plate are provided on the push rod, and one end of the spring is connected to the fixing plate and the other end is connected to the oil sampling cylinder.

[0005] Furthermore, a nut is provided at one end of the fixing rod, which is used to fix the fixing rod to the limiting rod.

[0006] Furthermore, one end of the oil cylinder opening structure is cut at an angle.

[0007] Furthermore, a pressure rod is provided on the push rod.

[0008] This invention has the following advantages: By scooping grease from the grease drum into the grease gun, and then inserting the scooping tube into the filling tube of the grease gun, the piston is pushed by pressing the push rod, pushing the grease from the scooping tube into the filling tube of the grease gun. The scooping tube repeatedly scoops grease into the filling tube of the grease gun, making the filling tube completely filled with grease. The grease gun is always placed in the grease drum for each worker to use, and the grease adhering to it does not need to be removed. This invention not only ensures that the filling tube of the grease gun is compacted and filled with grease, but also prevents grease from adhering to the outside of the filling tube, making it clean and hygienic, and preventing grease waste. Attached Figure Description

[0009] Figure 1 This is a perspective view of the present utility model;

[0010] Figure 2 This is a perspective view of the present invention.

[0011] Attached diagram: 1. Oil tap, 2. Fixing rod, 3. Limiting rod, 4. Push rod, 5. Piston, 6. Spring, 7. Limiting nut, 8. Fixing plate, 9. Nut, 10. Pressure rod. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please refer to Figure 1-2 This utility model discloses an oil dispenser for filling grease guns, including an oil dispensing cylinder 1. One end of the oil dispensing cylinder 1 is closed, and the other end is open. When the oil dispensing cylinder 1 is inserted obliquely into the grease container, grease is dispensed into the oil dispensing cylinder 1. A set of fixing rods 2 is provided on the closed end of the oil dispensing cylinder 1, and a limiting rod 3 is provided on the fixing rods 2. The limiting rod 3 is fixed to the fixing rods 2, and the length of the fixing rods 2 determines the stroke of the push rod 4. The push rod 4 is movably inserted through the limiting rod 3, and one end of the push rod 4 penetrates and extends into the interior of the oil dispensing cylinder 1. The interior of the oil dispensing cylinder 1 is equipped with... There is a piston 5, which is connected to a push rod 4. Pushing the push rod 4 causes the push rod 4 to move on the limit rod 3 and the oil cylinder 1, which in turn moves the piston 5. The piston 5 pushes the grease in the oil cylinder 1. A spring 6 is provided between the oil cylinder 1 and the limit rod 3. The spring 6 is located on the outside of the push rod 4. The push rod 4 is provided with a limit nut 7 and a fixing plate 8. One end of the spring 6 is connected to the fixing plate 8 and the other end is connected to the oil cylinder 1. When the push rod 4 is pushed, the spring 6 is compressed between the fixing plate 8 and the oil cylinder 1. When the push rod 4 is released, the spring 6 rebounds and the push rod 4 returns to its original position.

[0014] A nut 9 is provided at one end of the fixing rod 2. The fixing rod 2 is fixed to the limiting rod 3 by the nut 9. The limiting rod 3 can be removed from the fixing rod 2 by unscrewing the nut 9, which facilitates the replacement of the limiting rod 3.

[0015] One end of the opening of the oil dispenser 1 is beveled, which makes it easy to insert the oil dispenser 1 into the grease at an angle. The oil dispenser 1 makes it easy to take out the grease. The push rod 4 is equipped with a pressure rod 10, which makes it easy to press the push rod 4.

[0016] The working principle of this utility model is as follows: by scooping the grease from the grease drum into the grease, the grease is scooped out. Then, the grease scooping tube 1 is inserted into the grease gun's filling tube. By pressing the pressure rod 10, the push rod 4 is pushed, and the push rod 4 pushes the piston 5. The spring 6 is compressed between the fixing plate 8 and the grease scooping tube 1. The grease in the grease scooping tube 1 is pushed into the grease gun's filling tube. The grease scooping tube 1 is repeatedly scooped into the grease gun's filling tube until the filling tube is filled with grease.

[0017] This invention is simple to operate, convenient to use, and suitable for widespread promotion and application. Although embodiments of this invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of this invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grease dispenser for filling grease guns, characterized in that, The oil taking cylinder (1) is a closed structure at one end and an open structure at the other end. A set of fixed rods (2) is provided on the closed end of the oil taking cylinder (1). A limit rod (3) is provided on the fixed rod (2). A push rod (4) is movably passed through the limit rod (3). One end of the push rod (4) passes through and extends into the oil taking cylinder (1). A piston (5) is provided inside the oil taking cylinder (1). The piston (5) is connected to the push rod (4). A spring (6) is provided between the oil taking cylinder (1) and the limit rod (3). The spring (6) is located outside the push rod (4). A limit nut (7) and a fixing plate (8) are provided on the push rod (4). One end of the spring (6) is connected to the fixing plate (8) and the other end is connected to the oil taking cylinder (1).

2. The grease dispenser for a grease gun according to claim 1, characterized in that, A nut (9) is provided at one end of the fixing rod (2), and the fixing rod (2) is fixed to the limiting rod (3) by means of the nut (9).

3. The grease dispenser for a grease gun according to claim 1, characterized in that, One end of the open structure of the oil cylinder (1) is a beveled surface.

4. The grease dispenser for a grease gun according to claim 1, characterized in that, A pressure rod (10) is provided on the push rod (4).