A fuel injection device for a valve body

Abstract

The utility model discloses a kind of oil injection devices for valve body, belong to valve body assembly technical field, including the fixture for placing the oil injection valve body to be sprayed, moving assembly and oil injection component, moving assembly is provided with oil injection component, and can drive oil injection component along preset path moves;The oil injection component includes a proportional valve, the outlet of the proportional valve is provided with oil injection nozzle, the oil injection nozzle can be inserted into the oil injection valve body to be sprayed under the driving of moving assembly;Heater is provided on the proportional valve, and the heater is connected with butter filling machine through pipeline, for heating and liquefying butter into proportional valve;The proportional valve is connected with high-pressure gas source through air pipe, for liquefied butter into proportional valve is sprayed from oil injection nozzle. Relies on the application of heater makes the liquefaction of butter into proportional valve, cooperates high-pressure gas drive, successfully realizes the oil injection operation of butter on production line, improves oil injection efficiency and quality.

Description

Technical Field

[0001] This utility model belongs to the field of valve body assembly technology and relates to an oil injection device for valve bodies. Background Technology

[0002] An oil spraying device is a lubrication system that supplies lubricant to lubrication points. In the assembly process of a gate valve, the area within the valve body containing the O-ring must be lubricated, typically by spraying grease or similar substances. However, grease exists in a semi-solid state, which presents challenges for lubrication. Existing conventional oil spraying devices are primarily designed for liquid lubricants and are ineffective against semi-solid grease. Therefore, current production lines still rely on manual methods for lubricating the valve body, resulting in high labor intensity and low efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an oil spraying device for valve bodies. By improving the oil spraying device, grease can be used for oil spraying on the production line, thereby improving oil spraying efficiency and quality.

[0004] The objective of this utility model is achieved through the following technical solution: An oil injection device for a valve body, comprising: A fixture for placing a valve body to be injected with fuel, the fixture having a cavity adapted to the valve body to be injected with fuel, the valve body to be injected with fuel being disposed in the cavity; A movable component, wherein a fuel injection component is provided on the movable component and can drive the fuel injection component to move along a preset path; The oil injection assembly includes a metering valve with an injector nozzle at its outlet. The injector nozzle is inserted into the valve body to be injected by a moving component. A heater is provided on the metering valve and is connected to a grease dispenser via a pipe to heat and liquefy the grease entering the metering valve. The metering valve is connected to a high-pressure air source via an air pipe to spray the liquefied grease from the injector nozzle.

[0005] As a further improvement of one embodiment of the present invention, the moving component is disposed on a substrate, a side plate is disposed on one side of the substrate, and a positioning component is disposed on the side plate for fixing the fixture.

[0006] As a further improvement of one embodiment of the present utility model, the positioning component includes an upper pressure plate and a lower pressure plate fixed on the side plate, and the upper pressure plate and the lower pressure plate define a fixture placement area. A spring plunger is provided on both the upper pressure plate and the lower pressure plate, and the fixture is provided with a positioning hole corresponding to the spring plunger.

[0007] As a further improvement of one embodiment of the present invention, a set of sensing sensors are provided on both sides of the side plate, and channels for sensing light to pass through are provided on the back and side plate of the fixture. When the fuel injector is inserted into the valve body to be injected, it will block the sensing light.

[0008] As a further improvement of one embodiment of the present invention, the moving component includes an electric cylinder disposed on a base plate, a support plate is disposed on the output shaft of the electric cylinder, and the oil injection component is disposed on the support plate.

[0009] As a further improvement of one embodiment of the present invention, handrails are provided on both sides of the substrate to facilitate manual handling of the nozzle device.

[0010] The above technical solution has the following advantages: the movement of the oil injection components can be controlled in an orderly manner by the electric cylinder, the grease entering the metering valve is liquefied by the application of the heater, and with the help of high-pressure gas, the oil injection operation with grease on the production line is successfully realized, thereby improving the oil injection efficiency and quality. Attached Figure Description

[0011] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0012] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0013] Figure 1 A three-dimensional structural diagram of this utility model.

[0014] Figure 2 A three-dimensional structural diagram of the first state of this utility model (hidden protective cover).

[0015] Figure 3 A schematic diagram of the second state three-dimensional structure (hidden protective cover) provided for this utility model.

[0016] Figure 4 This is a schematic diagram of the first orientation of the fixture provided by this utility model.

[0017] Figure 5 This is a second-position schematic diagram of the fixture provided by this utility model.

[0018] In the picture: 1. Fixture; 101. Cavity; 102. Channel; 103. Protective cover; 2. Fuel injection valve body; 3. Metering valve; 4. Fuel injectors; 5. Heater; 6. Substrate; 61. Handrail; 7. Side panels; 81. Upper pressure plate; 82. Lower pressure plate; 83, 84, Spring plungers; 85. Inductive sensor; 9. Electric cylinder; 10. Support plate. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0022] See Figures 1-5As shown, a grease injection device for a valve body includes a fixture 1, a moving assembly, and a grease injection assembly. The fixture 1 is used to hold the valve body 2 to be greased. The moving assembly is equipped with the grease injection assembly and can drive the grease injection assembly to move along a preset path. The grease injection assembly includes a metering valve 3, and a grease nozzle 4 is provided at the outlet of the metering valve 3. The grease nozzle 4 can be inserted into the valve body 2 to be greased under the action of the moving assembly. A heater 5 (using resistance wire heating or PTC ceramic heating element heating) is provided on the metering valve 3. The heater 5 is connected to a grease dispenser through a pipe to heat and liquefy the grease entering the metering valve 3. The temperature range is usually controlled between 60 and 120°C to ensure that the grease is fully liquefied. The metering valve 3 is connected to a high-pressure air source through an air pipe to spray the liquefied grease entering the metering valve 3 from the grease nozzle.

[0023] Furthermore, the outlet of the fuel injector 4 and the metering valve 3 are connected by a quick-release connector, which makes it easy to replace nozzles of different diameters to adapt to the differences in valve body orifice diameter; the fuel injector 4 can be designed as a straight-through type or a conical structure with an expansion angle to optimize the grease spray diffusion effect.

[0024] Furthermore, the high-pressure air source generally uses clean compressed air at 0.3~0.6MPa. Pressure regulating valves and filter devices can be added to the air pipeline to prevent impurities from clogging the oil injection channel.

[0025] In this design, the moving assembly is mounted entirely on the base plate 6. The base plate 6 serves as the fundamental support component of the oil spraying device, with a side plate 7 vertically fixed to one side. The side plate 7 is equipped with a positioning assembly for fixing the fixture 1. The main function of the positioning assembly is to stably position the fixture 1 on the front side of the side plate 7, ensuring accurate relative positioning between the fixture 1 and the oil spraying assembly during the oil spraying process.

[0026] Specifically, the positioning component includes an upper pressure plate 81 and a lower pressure plate 82, both of which are fixed to the same vertical plane of the side plate 7 by bolts or other conventional fasteners, and a certain distance is maintained between the upper pressure plate 81 and the lower pressure plate 82. This distance forms the placement area of ​​the fixture 1—that is, the fixture 1 can be placed horizontally between the upper pressure plate 81 and the lower pressure plate 82.

[0027] To further ensure the precise positioning of fixture 1 within the placement area and prevent displacement during use, spring plungers 83 and 84 are respectively installed on the upper pressure plate 81 and the lower pressure plate 82. Positioning holes corresponding to spring plungers 83 and 84 are opened at corresponding positions on fixture 1 (spring plunger 83 of upper pressure plate 81 corresponds to the positioning hole on the upper surface of fixture 1, and spring plunger 84 of lower pressure plate 82 corresponds to the positioning hole on the lower surface of fixture 1).

[0028] When the fixture 1 is placed in the placement area between the upper pressure plate 81 and the lower pressure plate 82, the pins of the spring plungers 83 and 84 will be embedded into the corresponding positioning holes on the fixture 1 by pushing the fixture 1 horizontally, thereby limiting the horizontal displacement of the fixture 1 and achieving fast and reliable positioning. The fixture 1 has a cavity 101 that matches the shape of the valve body 2 to be injected. After the valve body 2 is placed in the cavity 101, the overall positioning of the fixture 1 can indirectly ensure the coaxiality of the valve body and the injector 4, thereby improving the accuracy of the injection operation.

[0029] In this design, a set of sensing sensors 85 (typically photoelectric sensors, including a transmitter and a receiver) are symmetrically installed on both sides of the side plate 7 to detect whether the fuel injector 4 is accurately inserted into the valve body 2 to be injected. Correspondingly, channels 102 (strips) for sensing light to pass through are provided on the back of the fixture 1 and the side plate 7. These channels 102 are aligned with the transmitter / receiver ends of the sensing sensors 85 to form a light path. When the fuel injector 4 is not inserted into the valve body, the sensing light can pass unobstructed along the channel 102, and the sensor outputs an unobstructed signal. When the fuel injector 4 is inserted into the valve body 2 to the predetermined position, the fuel injector 4 blocks the light path, the sensor detects the light being blocked, and thus outputs a position signal to trigger the fuel injection action or confirm that the fuel injector is in the correct position.

[0030] In this design, the moving component uses an electric cylinder 9 as the driving mechanism. The electric cylinder 9 is fixedly mounted on the base plate 6, and its output shaft is connected to a support plate 10. The fuel injection component is fixed on the support plate 10. The electric cylinder 9 receives control commands and drives the support plate and the fuel injection component to move precisely along a preset straight path, thereby achieving the positioning and resetting of the fuel injector 4.

[0031] Preferably, handrails 61 are symmetrically arranged on both sides of the base plate 6. The handrails 61 are fixed structures, which facilitates the manual handling of the entire oil spraying device by the operator.

[0032] Furthermore, a protective cover 103 is fixedly installed on the substrate 6. The protective cover 103 covers the outside of the fuel injection assembly, forming a closed or semi-closed space to prevent external dust and impurities from entering the inside of the fuel injection assembly, ensuring a clean working environment for the fuel injector 4 and the metering valve 3, and maintaining stable fuel injection quality.

[0033] The oil injection device provided by this utility model is a component of the valve body assembly equipment. It is closely integrated with other parts of the valve body assembly equipment and shares the control system, power supply system, air supply system, vacuum system, etc. of the valve body assembly equipment. Through a unified interface and operation instructions, it realizes the coordinated operation of each link and achieves automated production.

[0034] This invention precisely controls the linear movement trajectory of the oil spraying assembly via an electric cylinder 9 mounted on the base plate 6, ensuring that the oil nozzle 4 accurately reaches the spraying position on the valve body 2 along a preset path, achieving precise positioning and good repeatability in the oil spraying process. Simultaneously, the heater 5 liquefies the grease entering the metering valve 3, and the airflow from the high-pressure air source connected to the air pipe effectively reduces the grease flow resistance, allowing the liquefied grease to be smoothly and evenly sprayed from the oil nozzle 4. This structural design solves the technical problem of traditional grease's difficulty in atomizing and spraying at room temperature, realizing automated grease spraying operations on the production line and significantly improving spraying efficiency, atomization uniformity, and production quality stability.

[0035] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fuel injection device for a valve body, characterized in that, include: A fixture for placing a valve body to be injected with fuel, the fixture having a cavity adapted to the valve body to be injected with fuel, the valve body to be injected with fuel being disposed in the cavity; A movable component, wherein a fuel injection component is provided on the movable component and can drive the fuel injection component to move along a preset path; The oil injection assembly includes a metering valve with an injector nozzle at its outlet. The injector nozzle is inserted into the valve body to be injected by a moving component. A heater is provided on the metering valve and is connected to a grease dispenser via a pipe to heat and liquefy the grease entering the metering valve. The metering valve is connected to a high-pressure air source via an air pipe to spray the liquefied grease from the injector nozzle.

2. The fuel injection device according to claim 1, characterized in that, The movable component is mounted on a base plate, and a side plate is provided on one side of the base plate. A positioning component is provided on the side plate for fixing the fixture.

3. The fuel injection device according to claim 2, characterized in that, The positioning assembly includes an upper pressure plate and a lower pressure plate fixed to the side plate, and the upper pressure plate and the lower pressure plate define a fixture placement area. Both the upper pressure plate and the lower pressure plate are provided with spring plungers, and the fixture is provided with positioning holes corresponding to the spring plungers.

4. The fuel injection device according to claim 3, characterized in that, A set of sensing sensors is provided on both sides of the side plate. The back and side plate of the fixture are provided with channels for the sensing light to pass through. When the fuel injector is inserted into the fuel injection valve body, it will block the sensing light.

5. The fuel injection device according to claim 2, characterized in that, The moving component includes an electric cylinder mounted on a base plate, a support plate being mounted on the output shaft of the electric cylinder, and an oil injection component being mounted on the support plate.

6. The fuel injection device according to claim 2, characterized in that, Handrails are provided on both sides of the substrate to facilitate manual handling of the nozzle device.

Images