Assistance type grease filling gun

Abstract

The utility model discloses a power-assisted grease filling gun. The power-assisted grease filling gun comprises a gun body, a grease barrel, a grease filling port, a gas exhaust hole, a gas exhaust valve, a gas suction hole, a protection part, a miniature vacuum pump, a connecting pipe and a mounting plate. The grease filling device has the advantages that the exhaust hole and the air suction hole are formed in the bottom of the grease barrel, the air suction hole is connected with the miniature vacuum pump, the vacuum condition in the grease barrel is achieved rapidly, then the purpose of filling grease rapidly is achieved, and when the grease filled at a time is not full, the exhaust hole can circulate through pressing of the exhaust valve; the conditions are improved for the next working of the miniature vacuum pump, so that the grease is automatically pumped again until the grease is full, automatic grease pumping is achieved, efficiency is high, practicability is high, the exhaust valve is protected through the elastically-connected protection plate, it is avoided that the exhaust valve is pressed by mistake, and automatic grease pumping is affected, and when the exhaust valve needs to be pressed, the exhaust valve is not pressed by mistake. And the protective plate is directly pressed by a hand to move downwards, so that the exhaust valve can be directly pressed leftwards, and the convenience is high.

Description

Technical Field

[0001] The utility model relates to a grease refueling gun, in particular to a power-assisted grease refueling gun. Background Art

[0002] The grease gun consists of four parts: a handle, a gun head, a barrel, and a handle. The grease nozzle can be divided into two types: a pointed nozzle and a flat nozzle. The accessories are divided into two types: a hose and a hard tube. The inside of the barrel is composed of a leather cup, a spring, a steel ball, an exhaust screw, etc. There are different types of grease guns, such as pneumatic grease guns, manual grease guns, foot-operated grease guns, and electric grease guns. They are used for equipment maintenance and to add lubricating grease to the bearings of the operating parts of the equipment. They have many advantages such as simple operation, easy carrying, and a wide range of uses.

[0003] The Chinese patent with the patent number CN201020253917.X discloses a "manual grease gun refueling device". In the process of squeezing the grease in the barrel of the refueling device into the barrel of the manual grease gun, the piston and positioning rod of the manual grease gun retreat as the grease is squeezed in, thereby effectively preventing the mixing of air;

[0004] This structure has certain advantages, but still has some shortcomings:

[0005] When the oil cylinder in the grease gun is loaded with grease, the piston rod is manually pulled up to create a vacuum condition inside the oil cylinder, thereby sucking the grease into the oil cylinder to achieve the loading of the grease. This method makes it more laborious to fill the oil cylinder with grease and requires repeated extraction, which affects the efficiency of loading the grease. This structure needs to be improved to improve the efficiency of loading grease into the oil cylinder. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a power-assisted grease refueling gun.

[0007] The purpose of the utility model is achieved through the following technical solutions: A power-assisted grease gun, including a gun body, an oil cylinder, an oil filling port, an exhaust hole, an exhaust valve, an air extraction hole, a protective part, a micro vacuum pump, a connecting pipe, and a mounting plate;

[0008] The bottom end of the gun body is threadedly connected with an oil cylinder;

[0009] The top of the oil cylinder is provided with an oil filling port, and the bottom right end of the oil cylinder is provided with an exhaust hole;

[0010] The exhaust valve is installed at the right end of the oil cylinder, and its left end is connected to the exhaust hole;

[0011] The bottom end of the oil cylinder is provided with an air extraction hole, and the top end of the protective member is threadedly connected to the oil cylinder;

[0012] A micro vacuum pump is fixed to the internal bolts of the protective member, the right end of the connecting pipe is connected to the micro vacuum pump, the top end of the connecting pipe is embedded in the air extraction hole, and is connected to the oil cylinder;

[0013] A mounting plate is fixed on the outer side of the connecting pipe, and the mounting plate is fixed to the oil cylinder by bolts.

[0014] Preferably, the protective part includes an assembly, an installation area, a strong spring, and a protective plate. The top of the assembly is threadedly connected to the oil cylinder, and an installation area is provided inside the assembly. A strong spring is fixed to the right end of the assembly, and the bottom end of the protective plate is elastically connected to the assembly by a strong spring.

[0015] Further preferably, the cross-section of the installation area is rectangular, so as to facilitate installation of a micro vacuum pump therein.

[0016] Further preferably, a "T"-shaped slide groove is opened at the right end of the assembly, a protective plate slides in the slide groove, and a strong spring is also installed in the "T"-shaped slide groove. Through the setting of the "T"-shaped slide groove, it is convenient to limit the sliding of the protective plate, so that the protective plate can be stably moved vertically up and down in the slide groove.

[0017] Further preferably, the outer side of the bottom end of the oil cylinder is provided with a thread to facilitate stable connection with the assembly. This installation method is simple and efficient, and is convenient for maintenance and replacement of the micro vacuum pump and connecting pipe inside the assembly.

[0018] Further preferably, a vent is provided at the left end of the assembly body for exhausting the gas in the oil cylinder after the micro vacuum pump extracts the gas.

[0019] Further preferably, the connecting tube is a transparent hose and is relatively long, so that the connecting tube can be embedded and fixed in the air extraction hole first, and then the assembly can be threadedly installed.

[0020] Further preferably, the micro vacuum pump is prior art and will not be described in detail here.

[0021] The utility model has the following advantages:

[0022] The utility model arranges exhaust holes and suction holes at the bottom of the oil cylinder, and connects the suction holes to a micro vacuum pump, so as to quickly achieve the vacuum condition inside the oil cylinder, thereby achieving the purpose of quickly loading and unloading butter. When the butter is not full at one time, the exhaust hole can be circulated by pressing the exhaust valve, so as to improve the working conditions of the micro vacuum pump next time, so as to automatically extract butter again until the butter is full. This structure realizes the automatic extraction of butter, which is highly efficient and practical.

[0023] The utility model provides a protective piece and utilizes an elastically connected protective plate to protect the exhaust valve, so as to avoid the exhaust valve being pressed accidentally when extracting butter, which would affect the automatic extraction of butter, thereby improving the stability of the automatic extraction of butter. When it is necessary to press the exhaust valve, the hand can directly contact the top of the protective plate and forcefully squeeze the protective plate downward, so that the exhaust valve can be directly pressed to the left, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0027] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0028] Figure 5 It is a schematic diagram of the internal structure of the protective element of the utility model.

[0029] In the figure, 1-gun body, 2-oil cylinder, 3-oil filling port, 4-exhaust hole, 5-exhaust valve, 6-exhaust hole, 7-protective part, 8-micro vacuum pump, 9-connecting pipe, 10-mounting plate, 71-assembly body, 72-mounting area, 73-strong spring, 74-protective plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-4As shown, a power-assisted grease gun comprises a gun body 1, an oil cylinder 2, an oil filling port 3, an exhaust hole 4, an exhaust valve 5, an air extraction hole 6, a protective member 7, a micro vacuum pump 8, a connecting pipe 9, and a mounting plate 10; the bottom end of the gun body 1 is threadedly connected with the oil cylinder 2; the top end of the oil cylinder 2 is provided with an oil filling port 3, and the bottom right end of the oil cylinder 2 is provided with an exhaust hole 4; the exhaust valve 5 is installed at the right end of the oil cylinder 2, and its left end is connected with the exhaust hole 4; the bottom end of the oil cylinder 2 is provided with an air extraction hole 6, and the top end of the protective member 7 is threadedly connected with the oil cylinder 2; the micro vacuum pump 8 is fixed with the internal bolts of the protective member 7, the right end of the connecting pipe 9 is connected with the micro vacuum pump 8, and the connecting pipe 9 is connected with the micro vacuum pump 8. The top end is embedded in the air extraction hole 6, and it is connected to the oil cylinder 2; a mounting plate 10 is fixed to the outside of the connecting pipe 9, and the mounting plate 10 is fixed to the oil cylinder 2 with bolts. A thread is provided on the outside of the bottom end of the oil cylinder 2, which is convenient for stable connection with the assembly 71. This installation method is simple and efficient, and is convenient for maintenance and replacement of the micro vacuum pump 8 and connecting pipe 9 inside the assembly 71, thereby improving the convenience of parts maintenance. The connecting pipe 9 is a transparent hose and is relatively long, so it is convenient to first embed and fix the connecting pipe 9 in the air extraction hole 6, and then threadably install the assembly 71. Later, the excess connecting pipe 9 is affected by the rotation of the thread and is rolled up inside the assembly 71.

[0037] like Figure 5 As shown, a power-assisted grease gun, the protective member 7 includes an assembly 71, a mounting area 72, a strong spring 73, and a protective plate 74. The top of the assembly 71 is threadedly connected to the oil cylinder 2, and a mounting area 72 is arranged inside it. A strong spring 73 is fixed to the right end of the assembly 71, and the bottom end of the protective plate 74 is elastically connected to the assembly 71 by a strong spring 73. The cross-section of the mounting area 72 is rectangular, which is convenient for installing a micro vacuum pump 8 therein. A "T"-shaped slide groove is provided at the right end of the assembly 71, and a protective plate 74 slides in the slide groove, and the strong spring 73 is also installed in the "T" slide groove. Through the setting of the "T"-shaped slide groove, it is convenient to limit the sliding of the protective plate 74, so that the protective plate 74 can be stably moved vertically up and down in the slide groove. An air vent is provided at the left end of the assembly 71 for exhausting the gas after the micro vacuum pump 8 extracts the gas in the oil cylinder 2.

[0038] The working process of the utility model is as follows: the oil cylinder 2 is screwed off from the gun body 1, and the oil cylinder 2 is threadedly connected with the barrel containing butter, and then;

[0039] By starting the micro vacuum pump 8, the air in the oil cylinder 2 is sucked out from the connecting pipe 9 and discharged through the air vent of the assembly 71, thereby achieving a vacuum condition in the oil cylinder 2, thereby sucking in the butter from the oil filling port 3. When the butter is extracted once and the oil cylinder 2 is not full of butter, the finger is pressed against the top of the protective plate 74 and pressed down hard to squeeze and deform the strong spring 73, and the exhaust valve 5 is pressed to the left to allow air to circulate in the exhaust hole 4, and then the exhaust valve 5 is released, and the micro vacuum pump 8 is started again to extract the butter until the oil cylinder 2 is full of butter.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power-assisted grease gun, characterized in that: It comprises a gun body (1), an oil cylinder (2), an oil filling port (3), an exhaust hole (4), an exhaust valve (5), an air extraction hole (6), a protective part (7), a micro vacuum pump (8), a connecting pipe (9), and a mounting plate (10); The bottom end of the gun body (1) is threadedly connected to an oil cylinder (2); The top end of the oil cylinder (2) is provided with an oil filling port (3), and the bottom right end of the oil cylinder (2) is provided with an exhaust hole (4); The exhaust valve (5) is installed at the right end of the oil cylinder (2), and its left end is connected to the exhaust hole (4); The bottom end of the oil cylinder (2) is provided with an air extraction hole (6), and the top end of the protective member (7) is threadedly connected to the oil cylinder (2); A micro vacuum pump (8) is fixed to the inner bolts of the protective member (7), the right end of the connecting pipe (9) is connected to the micro vacuum pump (8), the top end of the connecting pipe (9) is embedded in the air extraction hole (6), and is connected to the oil cylinder (2); A mounting plate (10) is fixed to the outside of the connecting pipe (9), and the mounting plate (10) is fixed to the oil cylinder (2) by means of bolts.

2. The power-assisted grease gun according to claim 1, characterized in that: The protective member (7) comprises an assembly (71), a mounting area (72), a strong spring (73), and a protective plate (74). The top end of the assembly (71) is threadedly connected to the oil cylinder (2), and the mounting area (72) is provided inside the assembly. The right end of the assembly (71) is fixed with a strong spring (73), and the bottom end of the protective plate (74) is elastically connected to the assembly (71) by the strong spring (73).

3. The power-assisted grease gun according to claim 2, characterized in that: The cross section of the installation area (72) is rectangular.

4. The power-assisted grease gun according to claim 2, characterized in that: A "T"-shaped slide groove is provided at the right end of the assembly body (71), and a protective plate (74) slides in the slide groove.

5. The power-assisted grease gun according to claim 1, characterized in that: The outer side of the bottom end of the oil cylinder (2) is provided with a thread.

6. The power-assisted grease gun according to claim 2, characterized in that: The left end of the assembly (71) is provided with a vent.

7. The power-assisted grease gun according to claim 1, characterized in that: The connecting pipe (9) is a transparent hose.

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