A cylinder oiling tool

Abstract

The application relates to the technical field of cylinder lubricating equipment, and particularly discloses a cylinder oiling tool, which comprises a kettle and an oil pumping assembly, the oil pumping assembly comprises an oil pumping pipe, an oil spraying pipe, an oil spraying head, a piston, a first one-way flow limiting piece and an elastic reset piece, the bottom end of the oil pumping pipe is provided with an oil inlet, the first one-way flow limiting piece is arranged at the bottom end of the inner cavity of the oil pumping pipe and is arranged above the oil inlet, the piston is fixedly installed at the bottom end of the oil spraying pipe, the piston is sealingly installed in the inner wall of the oil pumping pipe in a lifting and sliding mode, and the oil spraying head is fixedly installed at the top end of the oil spraying pipe; the cylinder oiling tool can directly add machine oil into the oil kettle, the cylinder is sleeved on the oil spraying head, the oil spraying head is pressed down, a negative pressure is formed in the oil pumping pipe, the machine oil in the oil kettle enters the oil inlet pipe, the oil spraying pipe and the oil spraying head in sequence through the oil inlet hole and is sprayed out, and the inner wall of the cylinder is fully brushed, the overall structure has high stability, the oiling is uniform, the oil amount and the oil speed can be adjusted and controlled by changing the pressing frequency and the pressing rate.

Description

Technical Field

[0001] This application relates to the field of cylinder lubrication equipment technology, specifically to a cylinder oiling fixture. Background Technology

[0002] The main purpose of applying oil to the inner wall of a cylinder is to lubricate, reduce friction and wear, and facilitate assembly. In existing technologies, cylinder oiling techniques mainly include manual application, such as applying lubricating grease manually with a brush or spray gun, or by directly dipping the cylinder into the grease, or electrostatic spraying, which uses an electrostatic field to charge atomized oil droplets and evenly adhere them to the inner wall of the cylinder.

[0003] However, manual coating is prone to coating the outside of the cylinder. After machine testing, the grease on the outside of the cylinder will smoke and produce odors due to high temperature, affecting the environment. Electrostatic spraying is only suitable for cylinders made of conductive materials. It has poor compatibility with non-metallic or non-metallic materials and requires the use of special oil with low viscosity and high resistivity, which is more expensive. In addition, the electrostatic field may interfere with surrounding electronic equipment, requiring additional shielding design. Utility Model Content

[0004] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the existing technology and provide a cylinder oiling fixture.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A cylinder oiling fixture, comprising:

[0007] Oil bottle;

[0008] The oil extraction assembly includes an oil extraction tube, an oil injection tube, an oil injection head, a piston, and a first one-way flow restrictor;

[0009] The oil suction tube is used to draw lubricating grease. The oil suction tube is provided with an oil inlet. The first one-way flow restrictor is installed in the inner cavity of the oil suction tube and above the oil inlet. The first one-way flow restrictor is used to allow lubricating grease to flow into the inner cavity of the oil suction tube only from the oil inlet.

[0010] The piston is installed at the bottom of the fuel injection pipe and extends into the inner cavity of the fuel extraction pipe. The piston and the inner wall of the fuel extraction pipe form a sliding seal fit. An oil inlet is provided on the piston, and the oil inlet communicates with the inner cavity of the fuel extraction pipe.

[0011] The fuel injector is installed at the end of the fuel injection pipe, and the fuel injector has a fuel outlet.

[0012] The elastic reset component is fitted on the outside of the fuel injection pipe and abuts against the fuel injector head and the fuel injection pipe.

[0013] Furthermore, the oil extraction pipe is equipped with a pressure relief hole.

[0014] Furthermore, the oil extraction assembly also includes a bottom cover, which is installed at the bottom end of the oil extraction tube. A filter hole is provided on the end face of the bottom end, and the filter hole is connected to the oil inlet.

[0015] Furthermore, the cylinder oiling fixture also includes an elastic reset component, which is fitted on the outside of the fuel injection pipe and abuts against the fuel injector head and the fuel injection pipe.

[0016] Furthermore, the oil inlet is located at the bottom of the piston, and a second one-way flow restrictor is installed inside the piston cavity, which is installed above the oil inlet.

[0017] Furthermore, the first and second unidirectional current limiting components are spheres.

[0018] Furthermore, the diameter of the first unidirectional flow restrictor is 1.2-1.5 times the opening size of the oil inlet.

[0019] Furthermore, the cylinder oiling fixture also includes an oil can, with one end of the oil suction pipe extending into the inner cavity of the oil can. The oil can includes an oil can body and an oil can cover. The oil can cover is fixedly installed on the upper end face of the oil can body, and an installation hole is opened on the upper end face of the oil can cover. The top end of the oil suction pipe is fixedly installed on the installation hole.

[0020] Furthermore, the oil can lid includes a lid body and an outer shell. The mounting hole is provided on the lid body. The upper end face of the oil can body has an upwardly extending boss. The boss has a pair of opposing notches. The outer edges of the lid body are provided with a pair of protrusions. The pair of protrusions can slide into the bottom of the boss through the pair of notches. The lid body is installed below the outer shell.

[0021] Furthermore, the oil can also include an oil can handle, which is fixedly installed on the upper surface of the oil can body.

[0022] Furthermore, the outer diameter of the piston is larger than the opening size of the mounting hole.

[0023] Furthermore, the piston is fixedly mounted on the bottom end of the fuel injection pipe by a pin. The pin is arranged horizontally in the radial direction inside the fuel injection pipe and is mounted above the second ball. The joint between the pin and the fuel injection pipe is filled with a sealing coating.

[0024] The advantages of the cylinder oiling fixture provided in this application compared to the prior art are as follows: by using the above-mentioned cylinder oiling fixture, engine oil can be directly added into the oil reservoir. The cylinder is fitted onto the fuel injector. When the fuel injector is pressed down, a negative pressure is formed in the oil suction pipe. The engine oil in the oil reservoir enters the oil inlet pipe, fuel injector pipe and fuel injector in sequence through the oil inlet hole and is sprayed out, covering the inner wall of the cylinder. The overall structure has high stability and uniform coating. Moreover, the oil quantity and oil speed can be adjusted and controlled by different pressing times and rates. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of a cylinder oiling fixture in one embodiment of this application.

[0027] Figure 2 This is an exploded view of the installation and assembly of the cylinder oiling fixture in one embodiment of this application.

[0028] Figure 3 This is a three-dimensional structural diagram of the cylinder liner to be lubricated on the cylinder oiling fixture in one embodiment of this application.

[0029] Figure 4 This is a top view of the structure of the cylinder liner to be lubricated on the cylinder oiling fixture in one embodiment of this application.

[0030] Figure 5 for Figure 4 A schematic diagram of the AA-direction cross-section structure.

[0031] Figure 6 This is a three-dimensional structural diagram of the oil can body in one embodiment of this application.

[0032] Figure 7 This is an exploded view of the assembly and installation structure between the bottom of the sucker pipe and the bottom cover in one embodiment of this application.

[0033] Figure 8 This is a longitudinal cross-sectional view of the mounting structure between the fuel injection pipe and the piston in one embodiment of this application.

[0034] Figure 9 This is a top view of the structure of an oil reservoir with an injection pipe installed in one embodiment of this application.

[0035] Figure 10 for Figure 9 A schematic diagram of the BB-direction cross-sectional structure.

[0036] Figure 11 This is an exploded view of the assembly and disassembly of the oil can in one embodiment of this application.

[0037] Figure 12 for Figure 10 A magnified schematic diagram of the structure at point C. Detailed Implementation

[0038] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] Reference Figure 1 as well as Figure 2 A cylinder oiling fixture 10 includes an oil can 100 and an oil extraction assembly 200. The oil extraction assembly 200 is mounted on the oil can 100 and communicates with the inner cavity of the oil can. The function of the oil extraction assembly 200 is to extract the oil contained in the oil can 100 and spray it outward to deliver the oil to the inner wall of the cylinder 20 mounted on the oil extraction assembly 200, thereby achieving the lubrication function of the inner wall of the cylinder 20.

[0040] Reference Figure 9 , Figure 10 as well as Figure 11 As shown, the oil can 100 includes an oil can body 101, an oil can lid, and an oil can handle 104. The oil can body 101 has an inner cavity for storing engine oil. The oil can lid is fixedly installed on the upper end face of the oil can body 101. An installation hole is provided on the upper end face of the oil can lid. The oil extraction assembly 200 is installed in the installation hole and communicates with the inner cavity of the oil can body 101.

[0041] Reference Figure 6 As shown, an opening 108 is provided at the center of the upper end face of the oil can body 101. The oil extraction assembly 200 passes through the mounting hole on the oil can lid and extends into the inner cavity of the oil can body 101 through the opening 108. The oil can body 101 has an upwardly extending boss 106 on the outer edge of the opening 108. The boss 106 has a pair of opposing notches 107. The notches 107 are provided to facilitate the subsequent protrusion 105 to slide into the bottom end of the boss 106 through the notches 107.

[0042] Combined with reference Figure 6 , Figure 10 as well as Figure 11 As shown, the oil can lid includes a lid body 102 and a housing 103. Mounting holes are provided on the lid body 102. A pair of protrusions 105 are provided on the outer edges of the lid body 102. The pair of protrusions 105 can be horizontally rotated and slid into the bottom end of the boss 106 from the pair of notches 107. For example, the protrusions 105 can be screws.

[0043] When closing the oil can lid, first align the protrusion 105 on the lid 102 with the notch 107 on the oil can body 101, and screw the lid 102 tightly onto the upper surface of the oil can body 101. When the lid 102 is rotated horizontally, the pair of protrusions 105 on the lid 102 slide horizontally into the bottom of the boss 106 from the pair of notches 107 respectively. The boss 106 then limits the protrusions 105, preventing them from moving upwards (see reference). Figure 12 As shown), this ensures that the cover 102 is reliably fixed to the oil can body 101.

[0044] Reference Figure 10 and Figure 11 As shown, the outer shell 103 is installed around the cover 102 to shield the outer peripheral surface of the cover 102 and prevent external dust from adhering to the outer surface of the cover 102.

[0045] Reference Figure 1 and Figure 3 As shown, the oil can handle 104 is fixedly installed on the upper end face of the oil can body 101. The oil can handle 104 is designed to make it easy for the operator to hold the oil can body 101.

[0046] Reference Figure 1 and Figure 2 As shown, the oil extraction assembly 200 includes an oil extraction pipe 204, an oil injection pipe 202, an oil injection head 201, a piston 209, a first one-way flow restrictor 207, and an elastic reset member 203. The upper end of the oil extraction pipe 204 is installed in the mounting hole on the cover 102. For example, the upper end of the oil extraction pipe 204 is fixedly installed on the cover 102 by a threaded connection. The bottom end of the oil extraction pipe 204 extends into the inner cavity of the oil reservoir body 101. The bottom end of the oil extraction pipe 204 has an oil inlet 210. The engine oil stored in the inner cavity of the oil reservoir body 101 can enter the interior of the oil extraction pipe 204 through the oil inlet 210.

[0047] Reference Figure 4 and Figure 5 As shown, the first one-way flow restrictor 207 is installed in the inner cavity of the oil extraction pipe 204, and is positioned above the oil inlet 210. The first one-way flow restrictor 207 functions as a one-way valve. It is understood that in this embodiment, the function of the first one-way flow restrictor 207 (and the second one-way flow restrictor 213 mentioned below) is to allow external lubricating grease to flow in only through the oil inlet 210 (oil inlet hole 212), and to prevent the lubricating grease from flowing out in the opposite direction. In some embodiments, the first one-way flow restrictor 207 and the second one-way flow restrictor 213 are spherical.

[0048] Specifically, during forward suction, the negative pressure formed inside the oil suction pipe 204 and the oil pressure formed by the oil in the oil reservoir body 101 push the first one-way flow restrictor 207 upward, causing the oil inlet 210 to open. The oil in the oil reservoir body 101 can then enter the interior of the oil suction pipe 204 through the oil inlet 210. During reverse cutoff, the oil pressure blocks the first one-way flow restrictor 207 at the oil inlet 210, preventing the oil from flowing back into the interior of the oil reservoir body 101 and ensuring one-way flow of the oil. The opening and closing state of the first one-way flow restrictor 207 is automatically controlled by the pressure difference inside and outside the oil suction pipe 204.

[0049] In some embodiments, the diameter of the first one-way flow restrictor 207, which is spherical in shape, is 1.2-1.5 times the opening size of the oil inlet 210. This ensures that the first one-way flow restrictor 207 completely seals the oil inlet 210 while preventing the first one-way flow restrictor 207 from being too large and causing jamming during oil extraction.

[0050] Reference Figure 5 and Figure 7 As shown, the oil extraction assembly 200 also includes a bottom cover 208, which is installed at the bottom end of the oil extraction tube 204. A filter hole 211 is provided on the end face of the bottom end, and the filter hole 211 is connected to the oil inlet 210. The filter hole 211 on the bottom cover 208 serves a filtering function, preventing impurities in the oil can body 101 from entering the oil inlet 210 and causing the first ball 207 to become stuck. It is understood that the bottom cover 208 can also adopt other common filtering structures such as a filter screen, and is not limited thereto.

[0051] Reference Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, piston 209 is fixedly installed at the bottom end of injection pipe 202. Piston 209 is installed in the inner wall of sucker pipe 204 with a sliding seal. That is, piston 209 and the inner wall of sucker pipe 204 form a vertical sliding connection. The outer diameter of piston 209 is not less than the inner diameter of sucker pipe 204. Piston 209 forms a seal with the inner wall of sucker pipe 204 below it.

[0052] Reference Figure 5 As shown, the fuel injector 201 is fixedly installed at the top of the fuel injection pipe 202. The fuel injector 201 has a fuel outlet 205. The elastic reset member 203 is fitted onto the outer circumferential surface of the fuel injection pipe 202 and abuts against the fuel injector 201 and the fuel injection pipe 202. The piston 209 has a fuel inlet 212, which communicates with the inner cavity of the fuel extraction pipe 204. The function of the elastic reset member 203 is that after the fuel injector 201 is pressed down, the elastic reset member 203 deforms under pressure, which can drive the fuel injector 201 to reset and move upward. In some embodiments, the elastic reset member 203 is a spring.

[0053] Reference Figure 5 As shown, the outer diameter of piston 209 is larger than the opening size of mounting hole 108 to ensure that piston 209 will not slide out of mounting hole.

[0054] Continue to refer to Figure 5 and Figure 8 As shown, the oil inlet 212 is located at the bottom end of the piston 209. A second ball 213 is installed inside the piston 209, positioned above the oil inlet 212. The piston 209 is fixedly mounted at the bottom end of the injection pipe 202 by a pin 214. The pin 214 is horizontally positioned radially inside the injection pipe 202, positioned above the second ball 213. The joint between the pin 214 and the injection pipe 202 is filled with a sealing coating. Oil from the suction pipe 204 can be pumped into the injection pipe 202 through the oil inlet 212. The piston 209 and the injection pipe 202 are fitted with an interference fit.

[0055] The fuel injector 201 has at least one fuel outlet 205 along the circumferential direction, and the fuel pumped out from the fuel outlet 205 can be automatically coated onto the inner wall of the cylinder.

[0056] Reference Figure 8 As shown, there is a height difference between the pin 214 and the second ball 213. The installation height of the pin 214 is higher than that of the second ball 213, providing space for the second ball 213 to be lifted and pressed down. While connecting the fuel injection pipe 202 and the piston 209, the pin 214 can also provide a limit for the second ball 213.

[0057] Reference Figure 3 As shown, when the cylinder is operated, the fuel injector 201 connected to it moves downward. At this time, the second ball 213 is pushed upward by the pressure from below, and the oil in the oil extraction pipe 204 is pumped into the fuel injection pipe 202. Then, through the fuel injector 201 above the fuel injection pipe 202, it is pumped out from the oil outlet 205 on the fuel injector 201 to the inner wall of the cylinder.

[0058] Reference Figure 2 As shown, the oil extraction tube 204 is provided with a pressure relief hole 206 to prevent airlock from occurring inside the oil extraction tube 204 during the oil extraction process. Airlock refers to the accumulation of gas inside the oil extraction tube 204, which prevents the smooth flow of oil and hinders oil extraction. The pressure relief hole 206 ensures stable and smooth oil extraction within the oil extraction tube 204, providing reliability and efficiency for oil extraction. Specifically, the pressure relief hole 206 is located at the upper part of the oil extraction tube 204 near the top. During oil extraction, when the piston 209 is pulled up to its highest position, its lower end face is below the position of the pressure relief hole 206, preventing oil leakage from the pressure relief hole 206.

[0059] By using the aforementioned cylinder oiling fixture 10, engine oil can be directly added into the oil reservoir 100. The cylinder 20 is fitted onto the fuel injector 201. Pressing down on the fuel injector 201 creates a negative pressure in the oil extraction pipe 204. The engine oil in the oil reservoir 100 enters the oil inlet pipe 204, the fuel injection pipe 202, and the fuel injector 201 sequentially through the oil inlet hole 212 and is sprayed out, covering the inner wall of the cylinder 20. The overall structure has high stability and uniform coating. Furthermore, the oil quantity and speed can be adjusted and controlled by varying the number of presses and the rate of press.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cylinder oiling fixture, characterized in that, include: The oil extraction assembly includes an oil extraction tube, an oil injection tube, an oil injection head, a piston, and a first one-way flow restrictor; The oil extraction tube is used to draw lubricating grease. The oil extraction tube is provided with an oil inlet. The first one-way flow restrictor is installed in the inner cavity of the oil extraction tube and above the oil inlet. The first one-way flow restrictor is used to allow lubricating grease to flow into the inner cavity of the oil extraction tube only from the oil inlet. The piston is installed at the bottom end of the fuel injection pipe and extends into the inner cavity of the fuel extraction pipe. The piston and the inner wall of the fuel extraction pipe form a sliding seal fit. The piston is provided with the fuel inlet hole, which communicates with the inner cavity of the fuel extraction pipe. The fuel injector is installed at the end of the fuel injection pipe, and the fuel injector has an oil outlet.

2. The cylinder oiling fixture according to claim 1, characterized in that, The oil extraction pipe is equipped with a pressure relief hole.

3. A cylinder oiling fixture according to claim 1 or 2, characterized in that, The oil extraction assembly also includes a bottom cover, which is installed at the bottom end of the oil extraction tube. A filter hole is provided on the end face of the bottom end, and the filter hole is connected to the oil inlet.

4. The cylinder oiling fixture according to claim 1, characterized in that, It also includes an elastic reset member, which is fitted on the outside of the fuel injection pipe and abuts between the fuel injector and the fuel injection pipe.

5. The cylinder oiling fixture according to claim 1, characterized in that, The oil inlet is located at the bottom end of the piston, and a second one-way flow restrictor is installed in the inner cavity of the piston. The second one-way flow restrictor is installed above the oil inlet adjacent to it.

6. The cylinder oiling fixture according to claim 5, characterized in that, The first unidirectional current limiting element and the second unidirectional current limiting element are spheres.

7. The cylinder oiling fixture according to claim 1, characterized in that, The diameter of the first unidirectional flow restrictor is 1.2-1.5 times the opening size of the oil inlet.

8. The cylinder oiling fixture according to claim 1, characterized in that, It also includes an oil container, one end of which extends into the inner cavity of the oil container. The oil container includes an oil container body and an oil container lid. The oil container lid is fixedly installed on the upper end face of the oil container body. An installation hole is opened on the upper end face of the oil container lid, and the top end of the oil container is fixedly installed on the installation hole.

9. A cylinder oiling fixture according to claim 8, characterized in that, The oil can lid includes a lid body and an outer shell. The mounting hole is provided on the lid body. The upper end face of the oil can body has an upwardly extending boss. The boss has a pair of opposing notches. The outer edges of the lid body are provided with a pair of protrusions. The pair of protrusions can slide into the bottom of the boss through the pair of notches. The lid body is installed below the outer shell.

10. A cylinder oiling fixture according to claim 9, characterized in that, The oil can also include an oil can handle, which is fixedly installed on the upper surface of the oil can body.

11. A cylinder oiling fixture according to claim 8, characterized in that, The outer diameter of the piston is larger than the opening size of the mounting hole.

12. A cylinder oiling fixture according to claim 5, characterized in that, The piston is fixedly mounted on the bottom end of the fuel injection pipe by a pin. The pin is arranged horizontally in the radial direction inside the fuel injection pipe. The pin is installed above the second one-way flow restrictor. The joint between the pin and the fuel injection pipe is filled with a sealing coating.

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