Pneumatic oil gun

Abstract

The utility model relates to the technical field of oil guns, and discloses a pneumatic oil gun which comprises an oil gun body, an outer pipe is arranged on the outer wall of the oil gun body, sealing assemblies are arranged at the two ends of the outer pipe, a moving assembly is arranged at the top of the outer pipe, the moving assembly acts on the outer pipe to move, and each sealing assembly comprises a front nozzle cover. The interior of the front nozzle cover is in threaded connection with one end of the outer pipe, the other end of the outer pipe is in threaded connection with a rear end cover, a power assembly is arranged at one end of the rear end cover, the outer wall of the front nozzle cover is in threaded connection with an oil outlet cover, the moving assembly comprises a lifting handle, and the bottom of the lifting handle is fixedly connected to the outer wall of the outer pipe. According to the grease filling device, when grease is filled into the grease gun, grease is rapidly filled into the grease gun through suction force generated by the fan, then the grease gun is closed through the grease outlet cover, and then the grease is rapidly injected through partial pressure generated by the fan, so that the situation that the grease filling process is slow and external dust easily enters the grease gun is avoided, and the safety is improved.

Description

Technical Field

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

[0002] In industrial production, especially in industrial and mining environments such as coal mines, refueling guns are indispensable tools for equipment maintenance. With the expansion of industrial scale and the improvement of production efficiency requirements, the performance requirements for refueling guns are also increasing. Against this background, pneumatic refueling guns came into being. This type of refueling gun is mainly used to inject lubricants such as butter into various mechanical equipment to ensure the normal operation of the equipment and reduce wear. Due to the complex industrial and mining environment, there are strict requirements on the reliability, oiling efficiency and cleanliness of the refueling gun. It needs to meet the large amount of oiling needs while avoiding the mixing of impurities to ensure the stable operation of the equipment and extend its service life.

[0003] Most traditional refueling devices use manual or foot-operated mechanical structures. Manual refueling guns use a manual operating handle to squeeze the oil chamber using the lever principle to make the grease flow out of the oil outlet. This structural principle is simple and consists of a simple shell, oil chamber, piston and oil outlet. The piston moves in the oil chamber under human action to squeeze out the grease. The foot-operated refueling gun changes the manual operation to a foot pedal to drive the internal mechanical structure to achieve a similar function. The design of these traditional refueling devices mainly considers the basic oiling function and realizes the oil delivery through mechanical transmission, but lacks comprehensive optimization of oiling speed, impurity protection and labor intensity.

[0004] However, there is a significant problem with the traditional refueling method, that is, the slow oil filling speed is easily affected by the external environment. During the oil filling process, due to the slow speed and the lack of effective protective measures, external dust and other impurities can easily enter the refueling device or be injected into the equipment during oil filling. This situation will not only affect the quality of the grease, resulting in a decrease in the lubrication effect of the equipment and increased equipment wear, but may also cause equipment failure due to the accumulation of impurities, seriously affecting the safety and continuity of production. Moreover, the manual and foot-operated operation methods are inefficient. As the scale of production expands, they cannot adapt to the fast and efficient production rhythm of modern industry. For this reason, a pneumatic refueling gun is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a pneumatic refueling gun, which aims to improve the problems of slow addition and discharge speed and easy entry of dust in the prior art.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A pneumatic refueling gun, comprising a refueling gun, wherein an outer tube is provided on the outer wall of the refueling gun, sealing components are provided at both ends of the outer tube, and a moving component is provided on the top of the outer tube, wherein the moving component acts on the outer tube to move;

[0008] The sealing component includes a front nozzle cover, the interior of the front nozzle cover is threadedly connected to one end of the outer tube, the other end of the outer tube is threadedly connected to a rear end cover, one end of the rear end cover is provided with a power assembly, and the outer wall of the front nozzle cover is threadedly connected to an oil outlet cover;

[0009] As a further description of the above technical solution:

[0010] The moving assembly includes a handle, the bottom of which is fixedly connected to the outer wall of the outer tube;

[0011] As a further description of the above technical solution:

[0012] The power assembly includes an air inlet, one end of which is fixedly connected to the outer wall of the rear end cover, and a piston is slidably connected to the inside of the oil gun;

[0013] As a further description of the above technical solution:

[0014] A connecting groove is provided inside the air inlet, and a U-shaped card is provided inside the air inlet;

[0015] As a further description of the above technical solution:

[0016] The outer wall of the U-shaped card is slidably connected to the inside of the connecting groove, and the outer wall of the U-shaped card is threadedly connected to a nut;

[0017] As a further description of the above technical solution:

[0018] The outer wall of the U-shaped card is slidably connected to an air duct, and the outer wall of the air duct is slidably connected to the inside of the air inlet;

[0019] As a further description of the above technical solution:

[0020] A fan is provided outside the air inlet, and an output end of the fan is fixedly connected to one end of the air duct.

[0021] The utility model has the following beneficial effects:

[0022] When oiling the oil gun, the oil outlet cover is opened, the adding pipe is put in, and then the fan is started. The grease is quickly added into the oil gun by the suction force generated by the fan, and then the oil outlet cover is closed to prevent dust from entering. At the same time, when the device is oiled, the grease is quickly injected again by the partial pressure generated by the fan, which avoids the situation that the oiling process is slow and external dust is easily entered, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a pneumatic refueling gun proposed by the utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 The present invention is a schematic structural diagram of a piston of a pneumatic refueling gun.

[0026] Legend:

[0027] 1. Oil gun; 2. Oil outlet cover; 3. Front nozzle cover; 4. Outer tube; 5. Carrying handle; 6. Rear end cover; 7. Air duct; 8. Fan; 9. U-shaped clip; 10. Nut; 11. Air inlet; 12. Connecting groove; 13. Piston. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a pneumatic refueling gun, including a refueling gun 1, an outer tube 4 is provided on the outer wall of the refueling gun 1, and the outer tube 4 is made of high-strength stainless steel. This material has good corrosion resistance and mechanical strength, can effectively protect the internal refueling gun 1, and provide a stable structural support for the entire device, and sealed components are provided at both ends of the outer tube 4. A moving component is provided on the top of the outer tube 4, and the moving component acts on the outer tube 4 to move;

[0030] The sealing component includes a front nozzle cover 3, which has a special thread inside. The thread has been finely processed and has a suitable pitch and tooth angle, which perfectly matches the thread at one end of the outer tube 4. A tight connection can be achieved by rotation to ensure a sealing effect. The internal thread of the front nozzle cover 3 is connected to one end of the outer tube 4, and the other end of the outer tube 4 is threadedly connected to the rear end cover 6. The rear end cover 6 is also made of high-quality metal material, and an important power component is also provided at one end. A power component is provided at one end of the rear end cover 6. The outer wall of the front nozzle cover 3 is threadedly connected to the oil outlet cover 2. The moving component includes a handle 5. The bottom of the handle 5 is fixedly connected to the outer wall of the outer tube 4 by a firm welding method. The handle 5 adopts an arc structure and the surface is wrapped with non-slip rubber material, so that when the staff grabs the handle 5 to move the refueling gun 1, it is both comfortable and can ensure the stability of the operation. The bottom of the handle 5 is fixedly connected to the outer wall of the outer tube 4. The power component includes an air inlet 11. One end of the air inlet 11 is fixedly connected to the outer wall of the rear end cover 6. A piston 13 is slidably connected to the inside of the oil gun 1. The piston 13 is made of wear-resistant rubber material, and its outer edge fits tightly with the inner wall of the oil gun 1, which can not only ensure good sealing, but also slide flexibly under the push of gas. A connecting groove 12 is opened inside the air inlet 11, and a U-shaped card 9 is provided inside the air inlet 11. The U-shaped card 9 is made of an alloy material with higher hardness to ensure its strength and durability. The outer wall of the U-shaped card 9 is slidably connected to the inside of the connecting groove 12. The outer wall of the U-shaped card 9 is threaded with a nut 10. The outer wall of the U-shaped card 9 is slidably connected to the air duct 7. The air duct 7 adopts a flexible, high-temperature resistant and high-pressure resistant rubber tube, whose outer wall can slide inside the air inlet 11 to ensure the sealing and flexibility of the connection. The outer wall of the air duct 7 is slidably connected to the inside of the air inlet 11, and a fan 8 is provided outside the air inlet 11. The output end of the fan 8 is fixedly connected to one end of the air duct 7.

[0031] Specifically, when maintaining the device, it is necessary to inject butter into it. First, put the oil gun 1 into the outer tube 4, ensure that it is placed stably and in the correct position, then push the piston 13 to make it slide along the predetermined track into the oil gun 1 to prepare for subsequent oil filling, and then align the front nozzle cover 3 and the rear end cover 6 with the two ends of the oil gun 1 respectively, and fix them at both ends by means of wire connection to ensure the sealing of the entire device, and then slowly slide the air duct 7 into the air inlet 11, and then use the U-shaped card 9 to fix the air duct 7 and the air inlet 11 tightly, and then further reinforce them with the nut 10 to prevent slipping during use and ensure the stability of the oil filling process. After completing the above preparations, place the butter port inside the front nozzle cover 3 and start the fan 8. The fan 8 will generate wind pressure. Under the action of wind pressure, butter can be added quickly and smoothly. Inside the oil gun 1, after the butter is filled, use the oil outlet cover 2 to close the front nozzle cover 3 to effectively prevent dust from entering and maintain the cleanliness of the butter. Finally, the device filled with butter is moved to the maintenance area where butter needs to be added, and the front nozzle cover 3 is accurately aligned with the maintenance area. The fan 8 is started again, and the strong wind pressure pushes the butter to be added to the maintenance area quickly and accurately, and the oiling maintenance work is completed efficiently. Using wind pressure as the power, the refueling speed is greatly accelerated compared to the traditional manual and foot-operated refueling methods. This not only ensures that the work progress is carried out as planned, but also can quickly complete the refueling operation in large-scale or emergency operation scenarios, thereby improving the overall work efficiency. At the same time, there is no need for manual or foot operation by the staff, which reduces the physical workload of the staff and makes the staff more relaxed during the refueling process, which helps to reduce work fatigue and improve work experience and work quality.

[0032] Working principle: When maintaining the device, it is necessary to fill it with butter. First, place the oil gun 1 into the outer tube 4, then slide the piston 13 into the oil gun 1, and then fix the front nozzle cover 3 and the rear end cover 6 at both ends through wire connection, then slide the air duct 7 into the air inlet 11, fix the two together with the U-shaped card 9, and then fix it with the nut 10 to prevent slipping, then place the butter port inside the front nozzle cover 3, start the fan 8, and use the wind pressure generated by the fan 8 to quickly add butter to the inside of the oil gun 1, then close the front nozzle cover 3 through the oil outlet cover 2 to prevent dust from entering, and then move it to the adding position, align the front nozzle cover 3 with the maintenance position, and start the fan 8 again to push the butter to be quickly added to the maintenance position.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic refueling gun, comprising a refueling gun (1), characterized in that: The outer wall of the oil gun (1) is provided with an outer tube (4), both ends of the outer tube (4) are provided with sealed components, and the top of the outer tube (4) is provided with a moving component, and the moving component acts on the outer tube (4) to move; The sealing component comprises a front nozzle cover (3), the interior of the front nozzle cover (3) is threadedly connected to one end of the outer tube (4), the other end of the outer tube (4) is threadedly connected to a rear end cover (6), one end of the rear end cover (6) is provided with a power component, and the outer wall of the front nozzle cover (3) is threadedly connected to an oil outlet cover (2).

2. A pneumatic refueling gun according to claim 1, characterized in that: The moving assembly comprises a handle (5), the bottom of which is fixedly connected to the outer wall of the outer tube (4).

3. The pneumatic refueling gun according to claim 1, characterized in that: The power assembly comprises an air inlet (11), one end of which is fixedly connected to the outer wall of the rear end cover (6), and a piston (13) is slidably connected inside the oil gun (1).

4. The pneumatic refueling gun according to claim 3, characterized in that: A connecting groove (12) is provided inside the air inlet (11), and a U-shaped card (9) is provided inside the air inlet (11).

5. The pneumatic refueling gun according to claim 4, characterized in that: The outer wall of the U-shaped card (9) is slidably connected to the interior of the connecting groove (12), and the outer wall of the U-shaped card (9) is threadedly connected to a nut (10).

6. The pneumatic refueling gun according to claim 5, characterized in that: The outer wall of the U-shaped card (9) is slidably connected to the air duct (7), and the outer wall of the air duct (7) is slidably connected to the inside of the air inlet (11).

7. The pneumatic refueling gun according to claim 6, characterized in that: A fan (8) is provided outside the air inlet (11), and an output end of the fan (8) is fixedly connected to one end of the air duct (7).

Images