Integrated quantitative oil filling oil filling gun

Abstract

The utility model discloses an integrated quantitative oil injection's engine oil filling gun, including the gun body, with the fixed flowmeter of gun body, with the gun tube of flowmeter connection, the injection entrance for engine oil transmission is shaped to the rear end of gun body, the trigger for extruding setting is possessed to the gun body, the in pipe and the out pipe are possessed to the gun body, the installation cavity is possessed to the gun body, the in pipe and the out pipe are connected respectively at installation cavity both sides, are used for the transmission of engine oil, install the switch control part in installation cavity, and the switch control part includes: the pipe body no.

Description

Technical Field

[0001] This utility model relates to the field of engine oil filling technology, and in particular to an integrated quantitative oil filling gun. Background Technology

[0002] Oil filler nozzles are professional tools commonly used in auto repair and maintenance workshops. They replace the method of directly pouring oil from a can, allowing for more precise control of the amount of oil added each time. For situations requiring a specific amount or multiple top-ups, they allow for more precise operation, preventing overfilling or underfilling. Secondly, directly pouring oil easily spills into the engine compartment, on the floor, or onto oneself, causing waste and stains. Filler nozzles significantly reduce these issues. The nozzle and nozzle typically avoid direct contact with the filler neck or surrounding dust and oil, and also help prevent dust and impurities from the bottle opening from flowing into the engine with the oil. Reduced spillage means less cleanup work and a cleaner working environment.

[0003] However, in integrated metered oil filling guns, sealing is a key factor in ensuring accurate, efficient, and safe filling. Especially during the opening and closing of the oil filling gun, the internal sealing components need to move. Repeated and prolonged movement will affect the sealing ring, causing it to age, crack, or deform, thus reducing its sealing performance. Based on this, improvements are proposed for integrated metered oil filling guns to enhance the sealing performance of the sealing ring and extend its service life. Utility Model Content

[0004] To address the aforementioned problems, the present invention aims to provide an integrated quantitative oil filling gun.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an integrated quantitative oil filling gun, including a gun body, a flow meter fixed to the gun body, a gun barrel connected to the flow meter, an injection port for oil transfer formed at the rear end of the gun body, a trigger for pressing on the gun body, an inlet pipe and an outlet pipe inside the gun body, and a mounting cavity inside the gun body. The inlet pipe and the outlet pipe are respectively connected to both sides of the mounting cavity for oil transfer. A switch control unit is installed inside the mounting cavity. The switch control unit includes: The first tube is threaded into the installation cavity and has an upper end cap. The outer wall of the first tube has an outlet that communicates with its interior. The outside of the outlet is connected to the outlet pipe. The upper part of the first tube is set with upper and lower sealing layers. A connecting rod is integrally formed between the two sealing layers. Both sealing layers are sealed and squeezed with the installation cavity. The outside of the connecting rod is connected to the inlet pipe. The control shaft is installed inside the tube body. The upper end has a spring that abuts against the inner wall of the upper end cover, and the lower end extends out of the mounting cavity to abut against the trigger. Pressing the trigger controls the movement of the control shaft.

[0006] A further preferred embodiment of this utility model is: the connecting rod has several rods, which are fixed in a circular pattern between the sealing layers on both sides, and there is a gap between the connecting rods and the adjacent connecting rods to control the inward movement of the engine oil.

[0007] A further preferred embodiment of this utility model is: the inlet pipe and the outlet pipe are arranged in parallel vertically, and the control shaft is used to control the switch for connecting the two.

[0008] A further preferred embodiment of this utility model is as follows: the control shaft includes a through pipe located inside the tube body. The outer wall of the through pipe is integrally formed with a thickened layer one and a thickened layer two. The thickened layer one is located inside a connecting rod. The outer wall of the thickened layer one has two annular grooves. The outer side of the thickened layer two has an annular groove. The annular groove has a sealing ring that is squeezed against the tube body. The three sealing rings are arranged one ring apart from the connecting rod and the outlet, respectively, for sealing the upper and lower surfaces of the connecting rod and the outlet.

[0009] A further preferred embodiment of this utility model is as follows: a concave layer is formed between the first thickened layer and the second thickened layer, the concave layer is connected to the outlet, and when the control shaft moves upward, the sealing ring in the middle position moves to the upper end of a connecting rod, the connecting rod and the outlet are both connected to the concave layer, which is used to connect the inlet pipe and the outlet pipe.

[0010] A further preferred embodiment of this utility model is: the inner ring of the sealing ring has an inner annular opening, and the inner wall of the annular groove has an inner connecting hole that communicates with the inside of the through pipe, and the inner connecting hole communicates with the inner annular opening. The inside of the tube is pressurized to push the sealing ring outward.

[0011] A further preferred embodiment of this utility model is: the lower end of the tube has a lower sealing layer and the upper end has an upper sealing layer, which are used to seal the upper and lower ends of the tube.

[0012] A further preferred embodiment of this utility model is: the inside of the tube has an integral inner abutment layer, the upper end of the lower sealing layer is a threaded end, the thread is connected to the lower end of the tube, and its upper end is sealed and squeezed with the inner abutment layer.

[0013] A further preferred embodiment of this utility model is: the upper sealing layer has an I-shaped cross-section, the lower end is a threaded end that is threaded to the inner wall of the through pipe near the upper end, and the upper end is a sealing end that is squeezed and sealed to the inner wall of the through pipe.

[0014] A further preferred embodiment of this utility model is: the upper end of the upper sealing layer has a hexagonal groove for controlling the rotation of the upper sealing layer.

[0015] Compared with the prior art, the advantages of this utility model are: 1. The sealed pipe is pressurized with gas, which enters the inner annular opening through the inner connecting hole, pushing the sealing ring to expand outward, enhancing the compression and sealing of the inner wall of the pipe, causing the sealing ring to deform and press against the upper and lower side walls of the annular groove, compensating for the decrease in deformation capacity caused by the aging of the sealing ring, and enhancing the sealing effect.

[0016] 2. The upper sealing layer is adjusted by threaded pressure to compress the gas inside the pipe and adjust the sealing ring pressure in real time. It can be operated by rotating the upper sealing layer with a hex wrench to ensure that the sealing ring is in a sealed state. It eliminates the need for disassembly and maintenance, significantly reducing the frequency of downtime for maintenance.

[0017] 3. The connecting rods are arranged in a circular array. The middle layer of the sealing ring is always constrained by the connecting rods when it moves up and down, which prevents the sealing ring from falling out of the ring groove due to excessive air pressure and keeps the sealing ring stable. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of a half-section of the gun body of this utility model; Figure 3 This is a schematic diagram of the switch control unit and trigger structure of this utility model; Figure 4 This is a schematic diagram of a half-section of the tube body in the switch control unit of this utility model; Figure 5 This is an exploded view of the internal and external structure of the switch control unit of this utility model; Figure 6 This is a schematic diagram of a half-section of the control shaft of this utility model; Figure 7 This utility model Figure 6 A magnified schematic diagram of the structure of part A in the diagram; Figure 8 This is a schematic diagram of the planar structure of the switch control unit of this utility model being pressed by the trigger.

[0020] In the diagram: 1. Gun body; 11. Inlet; 12. Trigger; 13. Inlet tube; 14. Outlet tube; 15. Mounting cavity; 2. Flow meter; 3. Gun barrel; 4. Switch control unit; 41. Tube body; 42. Outlet; 43. Sealing layer; 44. Connecting rod; 45. Upper end cap; 5. Control shaft; 51. Through tube; 52. Thickened layer one; 53. Thickened layer two; 54. Concave layer; 55. Annular groove; 56. Sealing ring; 561. Inner annular opening; 562. Inner connecting hole; 57. Lower sealing layer; 571. Inner abutment layer; 58. Upper sealing layer. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0023] This embodiment mainly describes an integrated metering oil filling gun. Please refer to [link / reference]. Figures 1-8 Specifically, in an integrated metered oil filling gun, oil needs to be added in measured quantities. During the opening and closing of the oil filling gun, a sealing function needs to be maintained, and the oil also needs to be transferred. Therefore, the internal sealing components of the oil filling gun need to move to control the opening and closing of the oil filling gun. When the sealing components operate for a long time or reach a certain lifespan, the sealing rings may age, crack, or deform, leading to a decrease in sealing performance. Based on this problem, an improvement is proposed: an integrated metered oil filling gun, such as... Figures 1-4 As shown, the device includes a gun body 1, a flow meter 2 fixed to the gun body 1, and a gun barrel 3 connected to the flow meter 2. The rear end of the gun body 1 has an injection port 11 for oil transfer. The gun body 1, flow meter 2, and gun barrel 3 are essential components of an integrated quantitative oil filling gun. The flow meter 2 is existing technology and is used to detect the flow rate. The gun body 1 has a trigger 12 for pressing. The gun body 1 has an inlet pipe 13 and an outlet pipe 14. The gun body 1 also has a mounting cavity 15. The inlet pipe 13 and outlet pipe 14 are connected to both sides of the mounting cavity 15 for oil transfer. A switch control unit 4 is installed inside the mounting cavity 15. The switch control unit 4 includes: The tube body 41 is threaded into the mounting cavity 15 and has an upper end cap 45 at its upper end. The outer wall of the tube body 41 has an outlet 42 that communicates with its interior. The outer side of the outlet 42 is connected to the outlet tube 14. The upper part of the tube body 41 is provided with upper and lower sealing layers 43. A connecting rod 44 is integrally formed between the two sealing layers 43. Both sealing layers 43 are sealed and squeezed with the mounting cavity 15. The outer side of the connecting rod 44 is connected to the inlet tube 13. The control shaft 5 is installed inside the tube body 41. The upper end has a spring that abuts against the inner wall of the upper end cover 45, and the lower end extends out of the mounting cavity 15 to abut against the trigger 12. Pressing the trigger 12 controls the movement of the control shaft 5.

[0024] Specifically, the switch control unit 4 is used to disconnect the connection between the inlet tube 13 and the outlet tube 14. When the trigger 12 is pressed, the switch control unit 4 controls the inlet tube 13 and the outlet tube 14 to be in a connected state. It should be noted that the mounting cavity 15 is an integrally formed chamber inside the gun body 1, and the tube body 41 is installed inside the mounting cavity 15, such as... Figure 2 As shown, it should be noted that both the inlet pipe 13 and the outlet pipe 14 are only connected to the pipe body 41. The positions where the inlet pipe 13 and the outlet pipe 14 are connected to the pipe body 41 are fixed. Therefore, under this fixed, sealed condition, they have a long service life. It should also be noted that the control shaft 5 is used to control the switch of the switch control unit 4. Since the control shaft 5 is a sealed component in motion, it is a vulnerable part.

[0025] like Figure 5 As shown, the connecting rod 44 is the end that is connected to the inlet pipe 13. There are several connecting rods 44, which are fixed in a circular pattern between the two sealing layers 43. There is a gap between the connecting rods 44 and the adjacent connecting rods 44 to control the inward movement of the oil.

[0026] Specifically, the connecting rods 44 are distributed in a circle. When the sealing ring 56 in the middle position moves upward, the sealing ring 56 in the middle position presses against the connecting rod 44 outward, so that the sealing ring 56 in the middle position will not move outward under the action of the air pressure inside the pipe 51 or cause the gas inside the pipe 51 to leak.

[0027] like Figure 4 As shown, the inlet pipe 13 and the outlet pipe 14 are arranged in parallel, one above the other, and the control shaft 5 is used to control the switch of the two connecting positions.

[0028] Specifically, the inlet pipe 13 and the outlet pipe 14 are arranged one above the other. The control shaft 5 blocks the connection between the inlet pipe 13 and the outlet pipe 14. When the control shaft 5 moves upward, the inlet pipe 13 and the outlet pipe 14 are connected. Based on this, the movement of the control shaft 5 is controlled by the operation of the trigger 12. It should be noted that the upper end of the control shaft 5 has a spring for resetting, and the spring is supported in the upper end cover 45. It should also be noted that the upper end cover 45 is located in the mounting cavity 15 and is sealed with the lower end pipe body 41. The vertical movement of the control shaft 5 will not cause oil leakage.

[0029] like Figures 5-8 The diagram shows the specific structure of the control shaft part 5. The control shaft part 5 includes a through pipe 51 located inside the tube body 41. The outer wall of the through pipe 51 is integrally formed with a first thickening layer 52 and a second thickening layer 53. The first thickening layer 52 is located inside a ring connecting rod 44. The outer wall of the first thickening layer 52 has two annular grooves 55. The outer side of the second thickening layer 53 has an annular groove 55. The annular groove 55 has a sealing ring 56 that is pressed against the tube body 41. The three sealing rings 56 are arranged alternately with the ring connecting rod 44 and the outlet 42 to seal the upper and lower surfaces of the connecting rod 44 and the outlet 42.

[0030] Specifically, the through pipe 51 has a first thickening layer 52 and a second thickening layer 53. The first thickening layer 52 is used to block the connecting rod 44. The annular groove 55 on the outer side of the first thickening layer 52 and the second thickening layer 53 has three layers in total, arranged from top to bottom, located at the upper end of the connecting rod 44, the lower end of the outlet 42, and between the connecting rod 44 and the outlet 42, respectively, forming a sealing effect.

[0031] like Figure 6 As shown, a concave layer 54 is formed between the first thickened layer 52 and the second thickened layer 53. The concave layer 54 is connected to the outlet 42. When the control shaft 5 moves upward, the sealing ring 56 in the middle position moves to the upper end of the connecting rod 44. The connecting rod 44 and the outlet 42 are both connected to the concave layer 54, which is used to connect the inlet pipe 13 and the outlet pipe 14.

[0032] Specifically, when the control shaft 5 is reset, the recessed layer 54 is connected to the outlet 42; when the control shaft 5 is in motion, the recessed layer 54 is connected to the outlet 42 and a connecting rod 44.

[0033] like Figure 7 As shown, the inner ring of the sealing ring 56 has an inner annular opening 561, and the inner wall of the annular groove 55 has an inner connecting hole 562 that communicates with the inside of the through pipe 51. The inner connecting hole 562 communicates with the inner annular opening 561. The inside of the through pipe 51 is pressurized to push the sealing ring 56 outward.

[0034] Specifically, the inner side of the sealing ring 56 has an outward compressive force, causing the sealing ring 56 to press against the inner wall of the tube body 41. Furthermore, this compression generates a deformation force, also causing the upper and lower sides of the sealing ring 56 to press against the inner wall of the annular groove 55, resulting in a better seal. It should be noted that the sealing ring 56 is made of rubber.

[0035] The lower end of the tube 51 has a lower sealing layer 57 and the upper end has an upper sealing layer 58, which are used to seal the upper and lower ends of the tube 51. Specifically, the lower sealing layer 57 and the upper sealing layer 58 seal the lower and upper ends of the tube 51, so that there is air pressure inside the tube 51.

[0036] The inner part of the tube 51 has an integral inner abutment layer 571. The upper end of the lower sealing layer 57 is a threaded end, which is threaded to the lower end of the tube 51, and its upper end is sealed and squeezed with the inner abutment layer 571. Specifically, the tube 51 is squeezed by the thread and is in a sealed state.

[0037] The upper sealing layer 58 has an I-shaped cross-section, with a threaded end at the bottom that is threaded to the inner wall of the through pipe 51 near the top, and a sealing end at the top that is squeezed and sealed to the inner wall of the through pipe 51.

[0038] Specifically, the upper sealing layer 58 is threadedly connected to the inner wall of the tube 51 near the upper end, and rotating the upper sealing layer 58 causes it to move downwards, compressing the gas in the tube 51. It should be noted that the upper end of the upper sealing layer 58 is a sealing end, which is made of metal and has a layer of rubber material on the outside to achieve a seal at the upper end of the tube 51.

[0039] The upper end of the upper sealing layer 58 has a hexagonal groove for controlling the rotation of the upper sealing layer 58. Specifically, the movement of the upper sealing layer 58 is controlled by a hexagonal wrench, causing the upper sealing layer 58 to move along the axial direction of the through pipe 51, thereby changing the air pressure inside the through pipe 51.

[0040] Working principle: The switch control unit 4 is used to connect the inlet tube 13 and the outlet tube 14 and to disconnect the connection position between the two. When the trigger 12 is squeezed, the control shaft 5 in the switch control unit 4 moves upward to connect the inlet tube 13 and the outlet tube 14.

[0041] It should be noted that the switch control unit 4 in the reset state is as follows: Figure 4 As shown, the thickened layer 52 is located inside the connecting rod 44, and both the upper and lower sides of the connecting rod 44 have sealing rings 56 for sealing. The upper end of the outlet 42 is isolated by the sealing ring 56 at the lower end of the connecting rod 44, and the lower end also has a sealing ring 56, so that the connecting rod 44 and the upper and lower sides of the outlet 42 are sealed to prevent oil leakage.

[0042] Next, the upward-moving switch control unit 4, such as Figure 8As shown, among the three layers of sealing rings 56, the upper two layers move to the upper end of the connecting rod 44, while the lower sealing ring 56 remains at the lower end of the outlet 42, connecting the connecting rod 44 and the outlet 42, while keeping the upper end of the connecting rod 44 and the lower end of the outlet 42 sealed, allowing the oil to move from the inlet pipe 13 to the outlet pipe 14.

[0043] Additionally, it should be noted that the lower sealing layer 57 seals the lower end of the through pipe 51, and then the hexagonal groove at the upper end of the upper sealing layer 58 is driven to rotate by a hexagonal wrench, causing the upper sealing layer 58 to rotate downwards and extend into the through pipe 51, where it seals. As the upper sealing layer 58 moves downwards, the gas inside the through pipe 51 is compressed. The compressed gas compresses the inner annular opening 561 of the inner ring surface of the sealing ring 56, causing the sealing ring 56 to compress the inner wall of the pipe body 41, resulting in a certain deformation of the sealing ring 56. This compresses the inner walls of the upper and lower sides of the annular groove 55, thereby enhancing the sealing effect.

[0044] It is also important to know that by setting a connecting rod 44, when the middle sealing ring 56 moves from the lower end of the connecting rod 44 to the upper end of the connecting rod 44, the outer side of the middle sealing ring 56 is kept in a squeezing effect, so as to maintain a certain degree of air pressure inside the pipe 51.

[0045] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] The above provides a detailed description of the integrated quantitative oil filling gun provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An integrated quantitative oil filling gun, comprising a gun body, a flow meter fixed to the gun body, a gun barrel connected to the flow meter, and an injection port for oil transfer formed at the rear end of the gun body, characterized in that, The gun body has a trigger for pressing, an inlet and an outlet tube, and a mounting cavity. The inlet and outlet tubes are connected to both sides of the mounting cavity for oil transfer. A switch control unit is installed inside the mounting cavity, and the switch control unit includes: The first tube is threaded into the installation cavity and has an upper end cap. The outer wall of the first tube has an outlet that communicates with its interior. The outside of the outlet is connected to the outlet pipe. The upper part of the first tube is set with upper and lower sealing layers. A connecting rod is integrally formed between the two sealing layers. Both sealing layers are sealed and squeezed with the installation cavity. The outside of the connecting rod is connected to the inlet pipe. The control shaft is installed inside the tube body. The upper end has a spring that abuts against the inner wall of the upper end cover, and the lower end extends out of the mounting cavity to abut against the trigger. Pressing the trigger controls the movement of the control shaft.

2. The integrated quantitative oil filling gun according to claim 1, characterized in that, The connecting rod has several rods, which are fixed in a circular pattern between the two sealing layers. There is a gap between the connecting rods and the adjacent connecting rods to control the inward movement of the engine oil.

3. The integrated quantitative oil filling gun according to claim 1, characterized in that, The inlet and outlet pipes are arranged in parallel, one above the other, and the control shaft is used to control the switch that connects the two pipes.

4. The integrated quantitative oil filling gun according to claim 1, characterized in that, The control shaft includes a through pipe located inside the tube body. The outer wall of the through pipe is integrally formed with a thickened layer one and a thickened layer two. The thickened layer one is located inside a connecting rod ring. The outer wall of the thickened layer one has two annular grooves. The outer side of the thickened layer two has an annular groove. The annular grooves contain sealing rings that are pressed against the tube body. The three sealing rings are arranged one ring apart from the connecting rod ring and the outlet, respectively, to seal the upper and lower surfaces of the connecting rod and the outlet.

5. The integrated quantitative oil filling gun according to claim 4, characterized in that, A concave layer is formed between the first thickened layer and the second thickened layer. The concave layer is connected to the outlet. When the control shaft moves upward, the sealing ring in the middle position moves to the upper end of the connecting rod. The connecting rod and the outlet are both connected to the concave layer, which is used to connect the inlet pipe and the outlet pipe.

6. The integrated quantitative oil filling gun according to claim 4, characterized in that, The inner ring of the sealing ring has an inner annular opening, and the inner wall of the annular groove has an inner connecting hole that communicates with the inside of the pipe. The inner connecting hole communicates with the inner annular opening. The inside of the tube is pressurized to push the sealing ring outward.

7. The integrated quantitative oil filling gun according to claim 6, characterized in that, The lower end of the conduit has a lower sealing layer and the upper end has an upper sealing layer, which are used to seal the upper and lower ends of the conduit.

8. The integrated quantitative oil filling gun according to claim 7, characterized in that, The inside of the tube has an integral inner abutment layer, and the upper end of the lower sealing layer is a threaded end, which is threaded to the lower end of the tube, and its upper end is sealed and squeezed with the inner abutment layer.

9. The integrated quantitative oil filling gun according to claim 7, characterized in that, The upper sealing layer has an I-shaped cross-section, with a threaded end at the bottom that is threaded to the inner wall of the pipe near the top, and a sealing end at the top that is squeezed and sealed against the inner wall of the pipe.

10. The integrated quantitative oil filling gun according to claim 9, characterized in that, The upper end of the upper sealing layer has a hexagonal groove for controlling the rotation of the upper sealing layer.

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