A metering type fuel gun refueling auxiliary tool

Abstract

The present invention relates to the technical field of refueling auxiliary tools, and particularly relates to a metering type fuel gun refueling auxiliary tool, which includes a housing, a metering component arranged inside the housing, and a adapter connected to the housing; the housing includes an outer shell, one side of the outer shell is connected with a threaded joint, the other side of the outer shell is connected with the adapter, an impeller positioning column is arranged inside the outer shell, and an arc-shaped limiting column is fixedly arranged on one side of the impeller positioning column; the metering component includes an oil injection ring arranged on the inner wall of the outer shell, a gear, and a transparent metering dial arranged on the upper side of the outer shell; the oil injection ring includes a plurality of oil injection bumps, a connecting bridge is arranged between adjacent two oil injection bumps, the gear is penetrated by the impeller positioning column, the tooth grooves of the gear are matched with the oil injection bumps, and the distance between adjacent two oil injection bumps is matched with the teeth of the gear.

Description

Technical Field

[0001] The present invention relates to the technical field of refueling auxiliary tools, and particularly relates to a metering type oil gun refueling auxiliary tool. Background Art

[0002] At present, precision mechanical equipment needs to be regularly and quantitatively filled with various lubricating greases with relatively high viscosities such as lithium-based grease and calcium-based grease for lubrication and maintenance. Existing refueling equipment often does not have a grease metering function. The amount of lubricating grease filled can only be measured by empirical estimation, and the amount of grease injected cannot be accurately grasped. There are problems of insufficient or excessive grease filling. Overfilling will cause serious oil pollution to precision equipment, and insufficient filling will pose a hidden danger to equipment lubrication, resulting in improper maintenance and waste. Moreover, when filling grease, if air is mixed into the grease and cannot be detected in time, the refueling amount of mechanical equipment will also be greatly reduced. Only by correctly and effectively maintaining precision equipment can it function properly and extend the service life of the equipment. Therefore, how to accurately measure and efficiently fill lubricating grease has become an urgent problem to be solved. Summary of the Invention

[0003] To solve the deficiencies of the existing technology, the present invention provides a metering type oil gun refueling auxiliary tool.

[0004] To achieve the above object, the technical solution of the present invention is: a metering type oil gun refueling auxiliary tool, including a housing, a metering component disposed inside the housing, and a adapter connected to the housing;

[0005] The housing includes an outer shell, a threaded joint is connected to one side of the outer shell, the adapter is connected to the other side of the outer shell, an impeller positioning column is disposed inside the outer shell, and an arc-shaped limiting column is fixedly disposed on one side of the impeller positioning column;

[0006] The metering component includes an oil injection ring, a gear disposed on the inner wall of the outer shell, and a transparent metering dial disposed on the upper side of the outer shell; the oil injection ring includes a plurality of oil injection bumps, a connecting bridge is disposed between adjacent two oil injection bumps, the gear is penetrated by the impeller positioning column, the tooth grooves of the gear are matched with the oil injection bumps, and the distance between adjacent two oil injection bumps is matched with the teeth of the gear.

[0007] Further, the adapter includes a joint body, a pressing sleeve that can slide up and down is disposed at the end of the joint body, a clamping ring is disposed inside the joint body, and an elastic pad is disposed outside the clamping ring.

[0008] Further, an annular pressing sleeve bump is disposed on the side wall of the pressing sleeve, an annular joint body groove is disposed on the inner side wall of the joint body, and the height of the joint body groove is greater than the height of the pressing sleeve bump.

[0009] Furthermore, a limiting block is provided at the front end of the pressing sleeve, the outer diameter of the limiting block is larger than the inner diameter of the joint body, and a chamfer is provided at the rear end of the pressing sleeve.

[0010] Furthermore, a measuring scale is provided on the transparent measuring dial.

[0011] Furthermore, a pointer is provided above the gear, the pointer points to the measuring scale, and the pointer rotates together with the gear.

[0012] Furthermore, the transparent measuring dial is made of a transparent material.

[0013] Furthermore, the number of teeth of the gear is five, and the number of oil injection bumps in the oil injection ring is six.

[0014] The beneficial effects achieved by the present invention are as follows:

[0015] 1. When lubricating grease is filled in the present invention, the volume of the lubricating grease added into the equipment can be read through the pointer above the gear, realizing the precise filling of the lubricating grease, providing accurate parameters for the lubrication and maintenance of the equipment, and improving the maintenance effect.

[0016] 2. In the present invention, the pressing sleeve slides downward in the joint body, so that the clamping ring and the elastic pad clamp the sliding pressing sleeve, realizing the rapid connection of the adapter and the oil outlet pipe fitting, and having good sealing performance, and the situation of lubricating grease leakage will not occur.

[0017] 3. During the filling process of the lubricating grease in the present invention, the staff can clearly observe the flow situation of the lubricating grease through the transparent measuring dial, avoiding the pollution and damage of the equipment by the lubricating grease. At the same time, the window can observe whether there is air in the grease, which can avoid the problem of insufficient oil filling amount and improve the lubrication effect of the equipment.

[0018] 4. The present invention has a simple structure, is convenient to carry, is convenient to install, has a low cost, and is suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a fluid flow route diagram of the present invention;

[0021] Figure 3 is a schematic diagram of the disassembled structure of the present invention;

[0022] Figure 4 is Figure 1 an enlarged view of the structure at A in

[0023] Figure 5 isFigure 1 Cross-sectional view of the usage effect at position A in the middle;

[0024] Figure 6 is Figure 1 Exploded structure schematic diagram at position A in the middle.

[0025] Description of the markings in the figure: 1. Housing; 2. Adapter; 3. Metering assembly; 11. Threaded joint; 12. Outer shell; 13. Impeller positioning post; 14. Arc-shaped limiting post; 21. Compression sleeve; 22. Clamping ring; 23. Elastic pad; 24. Joint body; 31. Transparent metering dial; 32. Oil injection ring; 211. Compression sleeve bump; 241. Joint body groove; 311. Dial through hole; 312. Metering scale; 321. Oil injection bump; 322. Connecting bridge; 331. Gear positioning groove; 332. Pointer; 333. Gear. Specific embodiments

[0026] In order to better understand the purpose, structure and function of the present invention, the following further describes in detail a metering type oil gun refueling auxiliary tool of the present invention with reference to the accompanying drawings.

[0027] As Figures 1 to 6 shown, a metering type oil gun refueling auxiliary tool includes a housing 1, a metering assembly 3 is arranged inside the housing 1, and an adapter 2 that can be quickly connected to the oil outlet pipe fitting is connected to one side of the housing 1.

[0028] The housing 1 includes a cylindrical outer shell 12, a threaded joint 11 is arranged at one end of the outer shell 12, the adapter 2 is connected to the other end of the outer shell 12, an impeller positioning post 13 is arranged inside the outer shell 12, and an arc-shaped limiting post 14 is fixedly arranged on one side of the impeller positioning post 13. The arc-shaped limiting post 14 is in a crescent shape as a whole.

[0029] The metering assembly 3 includes an oil injection ring 32 and a gear 333 arranged on the inner wall of the outer shell 12, and a transparent metering dial 31 arranged on the upper side of the outer shell 12.

[0030] The grease injection ring 32 includes six grease injection bumps 321. A connecting bridge 322 is arranged between two adjacent grease injection bumps 321. The side wall of the grease injection bump 321 is closely attached to the inner wall of the outer shell 12. A gear 333 is arranged inside the grease injection ring 32. A gear positioning groove 331 is arranged at the central position of the gear 333. The impeller positioning post 13 passes through the gear positioning groove 331 to fix the gear 333 inside the outer shell 12. The tooth grooves of the gear 333 cooperate with the protruding parts of the grease injection bumps 321. The distance between two adjacent grease injection bumps 321 matches the teeth of the gear 333. When the gear 333 rotates, the gear 333 drives the grease injection ring 32 to rotate together. One of the teeth of the gear 333 is close to the inner side wall of the arc-shaped limiting post 14. The gear 333 is located on one side inside the outer shell 12. When the grease enters the outer shell 12 from the threaded joint 11, the flow rates of the grease on both sides of the gear 333 are different. The flow rate of the grease close to the side wall of the outer shell 12 is less than the flow rate of the grease close to the arc-shaped limiting post 14. Therefore, the gear 333 can only rotate in the counterclockwise direction.

[0031] A pointer 332 is fixedly connected to the upper central position of the gear 333 through a rotating shaft. The rotating shaft passes through the dial hole 311 on the transparent measuring dial 31. The pointer 332 is located above the transparent measuring dial 31. The transparent measuring dial 31 is hermetically arranged on the upper side of the outer shell 12. The transparent measuring dial 31 is made of a transparent material. A measuring scale 312 is arranged at the middle position of the transparent measuring dial 31. The pointer 332 above the gear 333 points to the measuring scale 312. A measuring unit is also arranged on the transparent measuring dial 31. The measuring unit is milliliters. The measuring scale 312 has five integer values from 0 to 4, which matches the number of teeth of the gear 333. For each rotation of a tooth of the gear 333, the volume of the grease entering the mechanical equipment is 1 milliliter. The staff can read the volume of the grease added to the equipment through the pointer 332 above the gear 333, realizing the precise filling of the grease, providing accurate parameters for the lubrication and maintenance of the equipment, and improving the maintenance effect.

[0032] The adapter 2 includes an adapter body 24. An annular adapter body groove 241 is provided on the inner side wall of the adapter body 24. A pressing sleeve 21 that can slide up and down is provided at the end of the adapter body 24. An annular pressing sleeve protrusion 211 is provided on the side wall of the pressing sleeve 21. The height of the adapter body groove 241 is greater than the height of the pressing sleeve protrusion 211. A limiting block is provided at the front end of the pressing sleeve 21. The outer diameter of the limiting block is greater than the inner diameter of the adapter body 24, preventing the pressing sleeve 21 from entering the interior of the adapter body 24 when the pressing sleeve 21 slides within the adapter body 24. A chamfer is provided at the rear end of the pressing sleeve 21, causing the diameter of the lower end of the pressing sleeve 21 to gradually decrease. A clamping ring 22 is provided inside the adapter body 24. A resilient pad 23 is provided on the outer side of the clamping ring 22. When the pressing sleeve 21 moves downward within the adapter body 24, the pressing sleeve 21 will squeeze the clamping ring 22, causing the clamping ring 22 and the resilient pad 23 to deform under force. The diameter of the inner diameter ratchet teeth of the clamping ring 22 becomes larger, and the clamping ring 22 wraps around the sliding-down pressing sleeve 21, realizing the quick connection of the adapter 2 to the oil outlet pipe fitting, with good sealing performance and no leakage of grease occurring.

[0033] Before use, the staff first installs the threaded joint 11 into the oil outlet hole of the oil gun, and the adapter body 24 is sleeved and installed on the oil outlet pipe fitting. When installing the pipe fitting, the pressing sleeve 21 is pressed forcefully towards the adapter body 24, causing the clamping ring 22 and the resilient pad 23 to deform under force. The diameter of the inner diameter ratchet teeth of the clamping ring 22 becomes larger, forming a cavity in the adapter body 24. At this time, the connecting pipe fitting is inserted into the adapter 2, and the end of the connecting pipe fitting touches the inner bottom of the adapter body 24.

[0034] When in use, the staff injects grease into the present invention by pressing the handle of the grease gun. When the grease passes through the inlet hole of the housing 1, due to the different fluid pressures of the grease on both sides of the gear 333, the grease oil pressure drives the gear 333 to rotate counterclockwise. The gear 333 and the oil injection ring 32 are meshed tightly, with no gap at the contact surface. After the transparent metering dial 31 is installed, the lower surface of the dial fits with the upper surface of the internal structure. The grease oil pressure drives the gear 333 to make the oil injection ring 32 rotate counterclockwise, and the flow direction of the grease is as Figure 2 shown, and the grease flows out through the cavity outlet hole.

[0035] When the gear 333 rotates, it is connected to the pointer 332 through a connecting shaft. The pointer 332 rotates counterclockwise. The amount of oil discharged when the pointer 332 passes between the surface scales of the transparent metering dial 31 is 1 milliliter, and a total of 5 milliliters of oil is discharged when the pointer 332 rotates one week.

[0036] It will be understood that the present invention is described by way of some embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present invention.

Claims

1. A metering fuel gun refueling auxiliary tool, characterized in that: It includes a housing (1), a metering component (3) arranged inside the housing (1), and an adapter (2) connected to the housing (1). The housing (1) includes an outer shell (12). One side of the outer shell (12) is connected with a threaded joint (11), and the other side of the outer shell (12) is connected with the adapter (2). An impeller positioning post (13) is arranged inside the outer shell (12), and an arc-shaped limiting post (14) is fixedly arranged on one side of the impeller positioning post (13). The adapter (2) includes an adapter body (24). A pressing sleeve (21) that can slide up and down is arranged at the end of the adapter body (24). A clamping ring (22) is arranged inside the adapter body (24), and an elastic pad (23) is arranged on the outer side of the clamping ring (22). The metering component (3) includes an oil injection ring (32) arranged on the inner wall of the outer shell (12), a gear (333), and a transparent metering dial (31) arranged on the upper side of the outer shell (12). A metering scale (312) is arranged on the transparent metering dial (31). The oil injection ring (32) includes a plurality of oil injection bumps (321), and a connecting bridge (322) is arranged between two adjacent oil injection bumps (321). The gear (333) is penetrated by the impeller positioning post (13), and the tooth grooves of the gear (333) are matched with the oil injection bumps (321). The distance between two adjacent oil injection bumps (321) is matched with the teeth of the gear (333).

2. The metering fuel gun refueling aid tool according to claim 1, wherein: An annular pressing sleeve bump (211) is arranged on the side wall of the pressing sleeve (21), and an annular adapter body groove (241) is arranged on the inner side wall of the adapter body (24). The height of the adapter body groove (241) is greater than the height of the pressing sleeve bump (211).

3. The metering type fuel gun refueling auxiliary tool according to claim 2, characterized in that: A limiting block is arranged at the front end of the pressing sleeve (21). The outer diameter of the limiting block is greater than the inner diameter of the adapter body (24), and a chamfer is arranged at the rear end of the pressing sleeve (21).

4. A metering type oil gun refueling auxiliary tool according to claim 1, characterized in that: A pointer (332) is arranged above the gear (333). The pointer (332) points to the metering scale (312), and the pointer (332) rotates together with the gear (333).

5. The metering type oil gun refueling auxiliary tool according to claim 1, characterized in that: The transparent metering dial (31) is made of a transparent material.

6. The metering type oil gun refueling auxiliary tool according to claim 1, characterized in that: The number of teeth of the gear (333) is five, and the number of oil injection bumps (321) in the oil injection ring (32) is six.

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