Grease gun

Abstract

The utility model relates to the technical field of grease guns, in particular to a grease gun which comprises a grease gun body, a gear adjusting handle assembly is fixedly installed on one side of the grease gun body and comprises a fixed handle and a movable handle, and one end of the fixed handle is hinged to one end of the movable handle through a concave plate. The fixed handle is fixedly installed on one side of the top end of the oil gun body, one side of the top end of the movable handle is integrally connected with an adjusting plate, a gear adjusting groove is formed in the adjusting plate, and an elastic adjusting button is arranged to penetrate through the gear adjusting groove to enable the movable handle to be hinged to an oil injection rod of the oil gun body. The grease gun can be conveniently used for large-dose grease filling and small-dose grease filling, and the grease filling rod has the advantages that the grease feeding pressure can be adjusted, and the grease feeding dose can be changed.

Description

Technical Field

[0001] The utility model relates to the technical field of grease guns, in particular to a grease gun. Background Art

[0002] A grease gun is a hand-operated tool used to add grease to mechanical equipment and is widely used on a variety of mechanical devices. For example, a manual grease gun disclosed in prior art (authorization publication number CN220851666U) allows operators to quickly and efficiently refill the gun with grease during routine equipment maintenance. This significantly reduces operator workload, eliminates equipment damage caused by grease contamination, and improves maintenance efficiency.

[0003] Because the diameter of the filling barrel of current grease guns on the market is fixed, the amount of grease that can be dispensed remains constant with each operation. Larger doses of grease require multiple operations to achieve the desired amount. While grease guns with large-diameter barrels can meet high-volume demands, they are difficult to control when dispensing smaller quantities, making it difficult to control the dosage and prone to overdosing. This not only wastes grease but can also contaminate equipment. Consequently, existing grease guns are unable to adapt to varying pressures and dosages, causing certain inconveniences for users. Summary of the Invention

[0004] The main purpose of the utility model is to overcome the deficiencies in the prior art and provide a grease gun.

[0005] The technical solution adopted by the present invention to achieve its technical purpose is: a grease gun, including a grease gun body, a gear adjustment handle assembly fixedly installed on one side of the grease gun body, the gear adjustment handle assembly including a fixed handle and a movable handle, the fixed handle and the movable handle are hinged at one end through a concave plate; one end of the concave plate is fixedly installed on the fixed handle, and the other end is hinged to the movable handle. Through the arrangement of the concave plate, one end of the movable handle can be movably connected to the fixed handle.

[0006] The fixed handle is fixedly mounted on one side of the top end of the oil gun body, and is aligned with the hole position on the oil gun body and mounted by screws.

[0007] An adjustment plate is integrally connected to one side of the top of the movable handle, and a gear adjustment slot is provided inside the adjustment plate. The movable handle and the oil filling rod of the oil gun body are hinged by arranging an elastic adjustment button through the gear adjustment slot; by pulling the elastic adjustment button, it can be stuck in different positions of the gear adjustment slot, so that the opening angle between the fixed handle and the movable handle can be adjusted.

[0008] Preferably, the gear adjustment groove is set as a ""-shaped slide groove, and the two ends of the ""-shaped slide groove are set as round hole structures, and the remaining part is thinner than the two ends. By setting the gear adjustment groove as a ""-shaped slide groove, on the one hand, it is convenient to adjust the elastic adjustment button, and on the other hand, it can better adjust the opening angle between the fixed handle and the movable handle.

[0009] Preferably, a buckle is provided between the fixed handle and the movable handle for limiting connection, one end of the buckle is connected to the fixed handle by a rotating shaft, and the other end is hooked on the movable handle by a clamping column; through the setting of the buckle, the fixed handle and the movable handle will not be too closed, and the fixed handle and the movable handle are limited, thereby avoiding misoperation or storage when the oil gun is not in use.

[0010] Preferably, the buckle is configured as an arc-shaped rotating plate, and the arc-shaped rotating plate structure facilitates connection and abutment against the movable handle.

[0011] Preferably, the elastic adjustment button includes a sleeve, a screw, a spring and a nut;

[0012] The sleeve is configured as a hollow convex structure, and the spring is placed inside the sleeve, and one end of the screw passes through the spring and the sleeve to be threadedly connected to the nut;

[0013] At the same time, one end of the screw is also kept in sliding connection with the raised end of the sleeve;

[0014] The nut is installed on one side of the adjusting plate, and the sleeve, screw and spring are installed on the other side of the adjusting plate. By pulling the sleeve, the force of the spring can be overcome to lift it up, and then the raised end of the sleeve is disengaged from one end of the gear adjusting slot. Since the gear adjusting slot is large at both ends and thin in the middle, one end of the screw can move in the adjustment slot to adjust the gear. After the gear position is adjusted, the raised end of the sleeve is inserted into the other end of the gear adjusting slot to limit the movable handle.

[0015] Preferably, the external fixing sleeves of the fixed handle and the movable handle are rubber sleeves.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The grease gun, through the coordinated arrangement of components such as a fixed handle, a movable handle, an adjustment plate, a gear adjustment slot, a concave plate and an elastic adjustment button, can, under the action of the gear adjustment slot, enable the fixed handle and the movable handle to open at different angles, making it convenient to use for large-dose and small-dose refueling, so that the grease filling rod has the characteristics of adjusting the oil delivery pressure and changing the oil delivery amount, avoiding the problem of difficulty in controlling the amount of grease when filling, the need for frequent and multiple small-scale filling of grease, or the problem of excessive grease leading to waste of grease and pollution to equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the grease gun.

[0019] Figure 2 This is a schematic diagram of the main structure of one end of the gear adjustment handle assembly.

[0020] Figure 3 This is a schematic diagram of the main structure of the grease gun after partial structure disassembly.

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the elastic adjustment button from top view.

[0022] in:

[0023] 1-Oil gun body; 2-Fixed handle; 3-Movable handle; 301-Adjustment plate; 302-Gear adjustment slot; 4-Concave plate; 5-Snap buckle; 501-Post; 502-Shaft; 6-Elastic adjustment button; 601-Sleeve; 602-Screw; 603-Spring; 604-Nut; 7-Rubber sleeve. DETAILED DESCRIPTION

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention. Example

[0027] See also Figure 1-4 A grease gun includes a grease gun body 1, and a gear adjustment handle assembly is fixedly installed on one side of the grease gun body 1. The gear adjustment handle assembly includes a fixed handle 2 and a movable handle 3. The external fixed sleeves of the fixed handle 2 and the movable handle 3 are provided with rubber sleeves 7.

[0028] The fixed handle 2 and the movable handle 3 are hinged at one end through a concave plate 4. One end of the concave plate 4 is fixedly mounted on the fixed handle 2, and the other end is hinged to the movable handle 3. Through the setting of the concave plate 4, one end of the movable handle 3 can be movably connected to the fixed handle 2.

[0029] The fixed handle 2 is fixedly mounted on one side of the top end of the oil gun body 1 , and is aligned with the holes on the oil gun body 1 and mounted by screws.

[0030] An adjustment plate 301 is integrally connected to one side of the top of the movable handle 3, and a gear adjustment slot 302 is provided inside the adjustment plate 301. The movable handle 3 is hinged to the oil filling rod of the oil gun body 1 by setting an elastic adjustment button 6 through the gear adjustment slot 302; by pulling the elastic adjustment button 6, it can be stuck in different positions of the gear adjustment slot 302, so that the opening angle between the fixed handle 2 and the movable handle 3 can be adjusted.

[0031] The gear adjustment groove 302 is set as a "7"-shaped slide groove, and the two ends of the "7"-shaped slide groove are set as round hole structures, and the remaining part is thinner than the two ends. By setting the gear adjustment groove 302 as a "7"-shaped slide groove, on the one hand, it is convenient to adjust the elastic adjustment button 6, and on the other hand, it can better adjust the opening angle between the fixed handle 2 and the movable handle 3.

[0032] Furthermore, in this embodiment, the elasticity adjustment button 6 includes a sleeve 601, a screw 602, a spring 603, and a nut 604. The sleeve 601 is configured as a hollow convex structure, and the spring 603 is placed inside it. One end of the screw 602 passes through the spring 603 and the sleeve 601 and is threadedly connected to the nut 604. At the same time, one end of the screw 602 is also maintained in sliding connection with the raised end of the sleeve 601.

[0033] The nut 604 is installed on one side of the adjustment plate 301, and the sleeve 601, the screw 602 and the spring 603 are installed on the other side of the adjustment plate 301. By pulling the sleeve 601, it can overcome the force of the spring 603 and lift it up, and then the raised end of the sleeve 601 is disengaged from one end of the gear adjustment slot 302. Since the gear adjustment slot 302 is large at both ends and thin in the middle, one end of the screw 602 can move in the adjustment slot 302 to adjust the gear. After the gear is adjusted, the raised end of the sleeve 601 is inserted into the other end of the gear adjustment slot 302 to limit the movable handle 3.

[0034] Furthermore, in this embodiment, a buckle 5 is provided between the fixed handle 2 and the movable handle 3 to provide a position-limiting connection. The buckle 5 is configured as an arc-shaped rotating plate, which facilitates connection and abutment against the movable handle 3. One end of the buckle 5 is pivotally connected to the fixed handle 2 via a rotating shaft 502, and the other end is hooked onto the movable handle 3 via a clamping post 501. The provision of the buckle 5 prevents the fixed handle 2 and the movable handle 3 from closing too close, thereby limiting the position between the fixed handle 2 and the movable handle 3, avoiding misoperation or requiring storage when the oil gun is not in use.

[0035] Specifically, during use, when the amount of oil pumped by the grease gun needs to be adjusted, the elastic adjustment button 6 can be adjusted to be located at different ends of the gear adjustment slot 302. When the oil gun is not in use, the buckle 5 can be rotated, and one end of the buckle 5 can be fitted on the clamping column 501 to hook or press on the movable handle 3. When it needs to be used, the buckle 5 can be rotated in the opposite direction so that the buckle 5 is lowered and will not connect or support the movable handle 3.

[0036] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structures, equivalent processes, or equivalent functional transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields, are all included in the scope of protection of the present utility model patent.

Claims

1. A grease gun, comprising a grease gun body (1), characterized in that: A gear adjustment handle assembly is fixedly mounted on one side of the oil gun body (1), the gear adjustment handle assembly comprising a fixed handle (2) and a movable handle (3), the fixed handle (2) and the movable handle (3) being hinged at one end via a concave plate (4); The fixed handle (2) is fixedly mounted on one side of the top end of the oil gun body (1); An adjustment plate (301) is integrally connected to one side of the top end of the movable handle (3), and a gear adjustment slot (302) is provided inside the adjustment plate (301). The movable handle (3) is hinged to the oil filling rod of the oil gun body (1) by arranging an elastic adjustment button (6) passing through the gear adjustment slot (302).

2. A grease gun according to claim 1, characterized in that: The gear adjustment groove (302) is configured as a "7"-shaped sliding groove.

3. A grease gun according to claim 1, characterized in that: A buckle (5) is further provided between the fixed handle (2) and the movable handle (3) for position-limiting connection. One end of the buckle (5) is rotatably connected to the fixed handle (2) via a rotating shaft (502), and the other end is hooked onto the movable handle (3) via a clamping column (501).

4. A grease gun according to claim 3, characterized in that: The buckle (5) is configured as an arc-shaped rotating plate.

5. The grease gun according to claim 1, characterized in that: The elastic adjustment button (6) comprises a sleeve (601), a screw (602), a spring (603) and a nut (604); The sleeve (601) is configured as a hollow convex structure, and the spring (603) is placed inside the sleeve. One end of the screw (602) passes through the spring (603) and the sleeve (601) and is threadedly connected to the nut (604). At the same time, one end of the screw (602) is also in sliding connection with the raised end of the sleeve (601).

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