Throttle valve and filling device

Abstract

The application provides a throttle valve and a filling device. The throttle valve comprises a driving unit, a driving gear and a driven gear which are engaged with each other, an outer valve body, a valve core and a valve plate. The outer wall of the outer valve body is engaged with the driven gear, and the outer valve body can rotate under the driving of the driven gear. The valve core is connected with the outer valve body through a bearing, and a stop block is arranged on the valve core. The valve core comprises a valve core main body which is a tubular circular truncated cone. The valve plate is located between the valve core main body and the outer valve body, and the valve plate is screw-connected with the outer valve body. The rotation of the outer valve body can drive the valve plate to move up and down along the valve core main body under the limiting of the stop block to control the size of the throttle valve opening. The throttle valve can accurately control the filling flow and realize long-time continuous medicament filling, which is beneficial to meet the process requirements and can meet the needs of continuous and small-dose medicament filling.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of oil and gas production equipment, and particularly relates to a throttle valve and a filling device. BACKGROUND

[0002] With the continuous production of natural gas wells, the water-containing gas well enters the later stage of production, the formation energy decreases year by year, the liquid carrying capacity of gas flow becomes weak, and wellbore liquid loading is easily formed, which leads to the reduction of production capacity. In order to improve the recovery of gas wells, certain measures need to be taken to assist the liquid discharge of gas wells.

[0003] In the prior art, the common auxiliary liquid carrying measures on the well station include filling foam drainage gas recovery agent, production increasing liquid carrying, self-generating foam, gas lifting and the like, in which the filling foam drainage gas recovery agent is the most important drainage gas recovery measure. The foam drainage gas recovery agent can be fully contacted with the wellbore liquid under the stirring action of the gas flow to form a large amount of low-density water-containing foam, the foam has good liquid carrying capacity, the wellbore liquid is carried out of the well by the generated foam, so as to achieve the effect of improving the wellbore environment and ensuring the stable production of the gas well, and then the purpose of increasing the natural gas recovery is achieved.

[0004] The foam drainage gas recovery agent is divided into solid foam drainage gas recovery agent and liquid foam drainage gas recovery agent according to the physical form, and the filling position and method of different foam drainage gas recovery agents are different. Generally, the solid foam drainage gas recovery agent can be directly filled by manual at the wellhead wax valve, and the liquid foam drainage gas recovery agent can be filled by the vehicle-mounted pump or the balance tank. Among them, the filling of the solid foam drainage gas recovery agent and the vehicle-mounted pump filling of the liquid foam drainage gas recovery agent can be controlled by manual control of the amount of the agent.

[0005] However, the existing balance tank filling device of the liquid foam drainage gas recovery agent cannot finely control the filling flow of the agent. Specifically, the agent flows into the natural gas well by using its own gravity. After the liquid foam drainage gas recovery agent is added into the balance tank through the filling port, the filling port valve is closed, the pressure of the balance tank and the pipeline connected to the wellhead is balanced by the wellhead pressure, and after the control valve into the wellhead is opened, the liquid foam drainage gas recovery agent continuously flows into the wellhead through the self-gravity and flows into the well bottom through the sleeve pressure inlet valve of the gas production tree.

[0006] With the progress of gas well production process, some gas wells need continuous and small-dose filling of the agent, the ordinary throttle stop valve is used to control the flow between the balance tank and the wellhead valve in the prior art, which cannot meet the process requirements, and the following technical problems exist. The filling flow cannot be accurately controlled, and the long-time continuous filling of the agent cannot be realized. SUMMARY

[0007] In view of the problems in the prior art, the application provides a throttle valve and a filling device, the throttle valve can accurately control the filling flow and realize long-time continuous filling of medicaments, and is beneficial to meet the process requirements and can meet the requirements of continuous and small-dose filling of medicaments.

[0008] In a first aspect, the application provides a throttle valve, which comprises: a driving unit comprising a driving gear and a driven gear engaged with each other; an outer valve body, the outer wall of which is engaged with the driven gear and can rotate under the driving of the driven gear; a valve core connected with the outer valve body through a bearing, the valve core being provided with a stop block; the valve core comprises a valve core main body, which is a tubular circular truncated cone; and a valve plate located between the valve core main body and the outer valve body, the valve plate being threadedly connected with the outer valve body, and the outer valve body can drive the valve plate to move up and down along the valve core main body under the limiting of the stop block to control the size of the throttle valve opening. By using the throttle valve, the filling flow can be accurately controlled, and long-time continuous filling of medicaments can be realized, which is beneficial to meet the process requirements and can meet the requirements of continuous and small-dose filling of medicaments.

[0009] In one embodiment of the first aspect, the stop block is arranged protruding from the outer wall of the valve core, and the stop block is in contact with the valve plate and blocks the rotation of the valve plate. By this embodiment, the stop block can block the circumferential rotation of the valve plate, so that when the outer valve body rotates, the valve plate can only move up and down along the valve core main body to control the size of the throttle valve opening.

[0010] In one embodiment of the first aspect, the valve plate has two, and the bottom of each of the two valve plates is provided with a matching surface, the matching surface being a vertical surface, and the matching surfaces of the two valve plates can be in pressurized contact to close the throttle valve. By this embodiment, the matching surface is a vertical surface, and when the matching surfaces of the two valve plates are in pressurized contact, the opening of the throttle valve can be closed, so that the filling flow is zero, and the throttle valve is closed.

[0011] In one embodiment of the first aspect, the throttle valve further comprises an adjusting disc for driving the driving gear, and the adjusting disc is marked with a scale. By this embodiment, the adjusting disc can provide convenience for adjusting the opening of the throttle valve and controlling the filling flow.

[0012] In one embodiment of the first aspect, the valve plate is threadedly connected with the outer valve body through a pipe thread. By this embodiment, it is beneficial to realize the fluid-tight connection between the valve plate and the outer valve body.

[0013] In a second aspect, the present application further provides a filling device, which comprises the throttle valve of the first aspect and any of the embodiments thereof. With the filling device, the filling flow can be accurately controlled, and long-time continuous filling of the medicament can be realized, which is beneficial to meet the process requirements and can meet the needs of continuous and small-dose filling of the medicament.

[0014] In an embodiment of the second aspect, the filling device comprises a housing, which comprises a tubular body and a containing cavity in communication with each other; the valve core connecting portion of the throttle valve is threadedly connected with the inner wall of the tubular body, and the valve core connecting portion is connected with the valve core body in an up-down manner; and the driving unit is located in the containing cavity. With this embodiment, the housing provides a containing space for the throttle valve.

[0015] In an embodiment of the second aspect, a connecting rod is connected between the driving unit and the adjusting disc, the connecting rod passes through the containing cavity of the housing, and a sealing cover is arranged at the position where the connecting rod contacts the housing. With this embodiment, the sealing cover can prevent the leakage of natural gas.

[0016] In an embodiment of the second aspect, an observation window is arranged below the throttle valve. With this embodiment, the arrangement of the observation window makes it possible to monitor the filling flow of the medicament in real time, which is beneficial to adjust and control the size of the filling flow.

[0017] In an embodiment of the second aspect, a filter screen is arranged above the throttle valve. With this embodiment, the filter screen can effectively filter the slag and other impurities, which is beneficial to avoid the blockage of the throttle valve.

[0018] In an embodiment of the second aspect, a movable joint is arranged at the top of the filling device, and a liquid outlet assembly is arranged at the bottom of the filling device. With this embodiment, the filling device can be quickly disassembled from the pipeline, which provides convenience for the use of the filling device.

[0019] In an embodiment of the second aspect, the liquid outlet assembly comprises a quick-response valve. With this embodiment, the throttle valve can be quickly closed in the case of abnormal conditions, so as to avoid the loss caused by the untimely closing of the throttle valve.

[0020] The throttle valve and the filling device provided by the present application have the following beneficial effects compared with the prior art.

[0021] 1. The filling flow can be accurately controlled, and long-time continuous filling of the medicament can be realized, which is beneficial to meet the process requirements and can meet the needs of continuous and small-dose filling of the medicament.

[0022] 2. The arrangement of the observation window makes it possible to monitor the filling flow of the medicament in real time, which is beneficial to adjust and control the size of the filling flow.

[0023] 3. The filter screen can effectively filter the slag and other impurities, and is beneficial to avoid the throttle valve from being blocked.

[0024] The above technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present application can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be described in further detail below based on embodiments and with reference to the drawings, in which:

[0026] Figure 1 A structural schematic diagram of a throttle valve according to an embodiment of the present application is shown, and the throttle valve is in a maximum opening state;

[0027] Figure 2 A structural schematic diagram of a throttle valve according to an embodiment of the present application is shown, and the throttle valve is in a closed state;

[0028] Figure 3 A structural schematic diagram of a stop block according to an embodiment of the present application is shown;

[0029] Figure 4 A structural schematic diagram of a filling device according to an embodiment of the present application is shown;

[0030] Figure 5 An installation schematic diagram of a filling device according to an embodiment of the present application is shown.

[0031] LIST OF REFERENCE NUMERALS

[0032] 1 - movable joint; 2 - filter screen; 3 - throttle valve; 4 - housing; 5 - observation window; 6 - quick response valve; 7 - adjusting disc; 8 - sealing cover; 10 - Christmas tree; 20 - balance tank; 21 - balance tank opening; 31 - driving gear; 32 - driven gear; 33 - bearing; 34 - valve core; 35 - valve plate; 36 - outer valve body; 37 - stop block; 38 - valve core main body; 39 - valve core connecting part.

[0033] In the drawings, the same parts are designated by the same reference numerals. The drawings are not drawn according to the actual proportions. DETAILED DESCRIPTION

[0034] The present application will be described in further detail below based on embodiments and with reference to the drawings, in which:

[0035] As Figure 1 and Figure 2As shown, the present application provides a throttle valve 3, which comprises: a driving unit comprising a driving gear 31 and a driven gear 32 engaged with each other; an outer valve body 36, the outer wall of which is engaged with the driven gear 32 and can rotate under the driving of the driven gear 32; a valve core 34 connected with the outer valve body 36 through a bearing 33, the valve core 34 being provided with a stopper 37; the valve core 34 comprising a valve core main body 38 which is a tubular circular truncated cone; and a valve plate 35 located between the valve core main body 38 and the outer valve body 36, the valve plate 35 being threadedly connected with the outer valve body 36, the outer valve body 36 being able to drive the valve plate 35 to move up and down along the valve core main body 38 under the limiting of the stopper 37 to control the size of the opening of the throttle valve 3.

[0036] The valve core 34 remains stationary during the opening and closing of the throttle valve 3. The outer valve body 36 is fixed on the valve core 34 through the bearing 33. The valve core main body 38 is a tubular circular truncated cone, the small-diameter end of which faces the natural gas well.

[0037] The driving gear 31 is able to drive the driven gear 32 engaged therewith to rotate, and the rotating driven gear 32 is able to drive the outer valve body 36 engaged with the driven gear 32 to rotate. The valve plate 35 is clamped between the valve core 34 and the outer valve body 36, the outer wall of which is threadedly connected with the inner wall of the outer valve body 36, and the inner wall of which is in contact with the valve core 34. The valve core 34 is provided with the stopper 37 for blocking the circumferential rotation of the valve plate 35. Therefore, the outer valve body 36 rotates, and the valve plate 35 can only move up and down along the valve core main body 38 to control the size of the opening of the throttle valve 3.

[0038] Since the valve core main body 38 is a tubular circular truncated cone, the small-diameter end of the valve core main body 38 faces the natural gas well. When the plate-shaped valve plate 35 moves downward along the valve core main body 38, the opening of the throttle valve 3 gradually decreases. Conversely, when the valve plate 35 moves upward along the valve core main body 38, the opening of the throttle valve 3 gradually increases.

[0039] Specifically, when the valve plate 35 moves downward, the opening of the throttle valve 3 gradually decreases until it is closed. When the valve plate 35 moves upward, the opening of the throttle valve 3 gradually increases until it reaches the maximum opening. In this embodiment, by adjusting the rotating position of the driving gear 31, the up-and-down position of the valve plate 35 can be controlled to adjust the size of the opening of the throttle valve 3 to accurately control the filling flow rate.

[0040] When continuous filling is required for a long time, if the filling flow rate is constant, the driving gear 31 only needs to be parked at the current position, and the valve plate 35 is stationary at the corresponding position, thereby realizing continuous filling.

[0041] When continuous and small-dose medicament infusion is required, the drive gear 31 is first adjusted to lower the valve plate 35 until the opening of the throttle valve 3 meets the requirement, and the drive gear 31 is stopped at the current position after the flow is adjusted, and the valve plate 35 is static at the corresponding position, so as to realize continuous and small-dose infusion.

[0042] When continuous infusion is not required, the valve plates 35 are lowered to the lowest position and pressurized to contact each other to close the opening of the throttle valve 3.

[0043] The throttle valve 3 can accurately control the infusion flow and realize long-time continuous infusion of medicament, and can meet the requirements of continuous and small-dose infusion of medicament.

[0044] The throttle valve 3 of the embodiment can accurately control the infusion flow and realize long-time continuous infusion of medicament, which is beneficial to meet the process requirements and can meet the requirements of continuous and small-dose infusion of medicament.

[0045] In one embodiment, as shown in Figure 3 The stop block 37 protrudes from the outer wall of the valve core 34, and the stop block 37 contacts the valve plate 35 and blocks the rotation of the valve plate 35.

[0046] The stop block 37 of the embodiment can block the circumferential rotation of the valve plate 35, so that when the outer valve body 36 rotates, the valve plate 35 can only move up and down along the valve core body 38 to control the size of the opening of the throttle valve 3.

[0047] In one embodiment, as shown in Figure 1 and Figure 2 The valve plate 35 has two, and the bottom of each valve plate 35 is provided with a matching surface, which is a vertical surface, and the matching surfaces of the two valve plates 35 can be pressurized to contact to close the throttle valve 3.

[0048] The matching surface of the embodiment is a vertical surface, and when the matching surfaces of the two valve plates 35 are pressurized to contact, the opening of the throttle valve 3 can be closed, so that the infusion flow is zero, and the throttle valve 3 is closed.

[0049] In one embodiment, as shown in Figure 1 , Figure 4 and Figure 5 The throttle valve 3 further comprises an adjusting disc 7, which is used to drive the drive gear 31, and the adjusting disc 7 is marked with a scale.

[0050] The adjusting disc 7 is connected with the drive gear 31 and is used to drive the drive gear 31, and the scale thereon can record the stop position of the drive gear 31.

[0051] When the flow of the throttle valve 3 meets the requirement, the number on the dial can be recorded, so that the next time the drive gear 31 can be directly adjusted to the value to meet the flow requirements.

[0052] The adjusting disc 7 of the embodiment can facilitate the adjustment of the opening of the throttle valve 3 and the control of the filling flow.

[0053] In an embodiment, the valve plate 35 is threadedly connected with the outer valve body 36 through a pipe thread.

[0054] The embodiment is conducive to achieving a fluid-tight connection between the valve plate 35 and the outer valve body 36.

[0055] As shown in Figure 4 and Figure 5 , the application also provides a filling device, the filling device comprising the throttle valve 3 of the first aspect and any one of the embodiments thereof.

[0056] The filling device of the embodiment can accurately control the filling flow and achieve long-time continuous medicament filling, which is conducive to meeting the process requirements and can meet the needs of continuous and small-dose medicament filling.

[0057] In an embodiment, as shown in Figure 4 , Figure 5 , the filling device comprises a housing 4, the housing 4 comprising a tubular body and a containing cavity in communication with each other; the valve core connecting portion 39 of the throttle valve 3 is threadedly connected with the inner wall of the tubular body, and the valve core connecting portion 39 of the throttle valve 3 is connected with the valve core body 38 in an up-down manner; and the driving unit is located in the containing cavity.

[0058] The housing 4 provides a containing space for the throttle valve 3.

[0059] The valve core connecting portion 39 of the throttle valve 3 is threadedly connected with the inner wall of the tubular body, and the valve core connecting portion 39 of the throttle valve 3 is connected with the valve core body 38 in an up-down manner, so as to fix the valve core body 38 on the housing 4.

[0060] The driving unit is located in the containing cavity, so that it can be smoothly connected with the outer valve body 36.

[0061] The housing 4 of the embodiment provides a containing space for the throttle valve 3.

[0062] In an embodiment, as shown in Figure 1 , Figure 4 and Figure 5 , a connecting rod is connected between the driving unit and the adjusting disc 7, the connecting rod passes through the containing cavity of the housing 4, and a sealing cover 8 is arranged at the contact position of the connecting rod and the housing 4.

[0063] The sealing cover 8 of the embodiment can prevent the leakage of natural gas.

[0064] In one embodiment, as shown in Figure 4 and Figure 5 a viewing window 5 is arranged below the throttle valve 3.

[0065] The viewing window 5 can be used to observe the filling flow rate. When the filling flow rate is too large, the valve plate 35 can be moved downward to reduce the opening degree of the throttle valve 3; when the filling flow rate is too small, the valve plate 35 can be moved upward to increase the opening degree of the throttle valve 3, which is beneficial to adjust and control the size of the filling flow rate.

[0066] The arrangement of the viewing window 5 in the embodiment makes it possible to monitor the filling flow rate of the medicament in real time, which is beneficial to adjust and control the size of the filling flow rate.

[0067] In one embodiment, as shown in Figure 4 and Figure 5 a filter screen 2 is arranged above the throttle valve 3.

[0068] There may be corrosion slag and other impurities in the balance tank 20. By arranging the filter screen 2, the slag and other impurities can be effectively filtered out, which is beneficial to avoid blocking the throttle valve 3.

[0069] The embodiment can effectively filter out the slag and other impurities by arranging the filter screen 2, which is beneficial to avoid blocking the throttle valve 3.

[0070] In one embodiment, as shown in Figure 4 and Figure 5 The top of the filling device is provided with a movable joint 1, and the bottom of the filling device is a liquid outlet assembly.

[0071] The bottom of the filling device is directed to the natural gas well. The top of the filling device is provided with a movable joint 1, which is also called an oil joint. The movable joint 1 is beneficial to quickly disassemble and assemble the filling device from the pipeline, which provides convenience for the use of the filling device.

[0072] In one embodiment, as shown in Figure 4 and Figure 5 The liquid outlet assembly includes a quick response valve 6.

[0073] Optionally, the quick response valve 6 is a manual regulating valve. When an abnormal situation occurs, the throttle valve 3 can be quickly closed through the quick response valve 6 to avoid the loss caused by the untimely closing of the throttle valve 3.

[0074] The embodiment is beneficial to quickly close the throttle valve 3 when an abnormal situation occurs, so as to avoid the loss caused by the untimely closing of the throttle valve 3.

[0075] Example one

[0076] AsFigure 1 and Figure 2 As shown in the figure, the throttle valve 3 of the embodiment comprises a driving unit including a driving gear 31 and a driven gear 32 engaged with each other, an outer valve body 36 engaged with the driven gear 32 and capable of rotating under the driving of the driven gear 32, a valve core 34 connected with the outer valve body 36 through a bearing 33, the valve core 34 being provided with a stopper 37, the valve core 34 including a valve core main body 38 which is a tubular circular truncated cone, and a valve plate 35 located between the valve core main body 38 and the outer valve body 36, the valve plate 35 being threadedly connected with the outer valve body 36, the outer valve body 36 being capable of driving the valve plate 35 to move up and down along the valve core main body 38 under the limiting of the stopper 37 to control the size of the opening of the throttle valve 3.

[0077] The valve core 34 remains stationary during the opening and closing of the throttle valve 3. The outer valve body 36 is fixed on the valve core 34 through the bearing 33. The valve core main body 38 is a tubular circular truncated cone, and the small-diameter end of the valve core main body 38 faces the natural gas well.

[0078] The driving gear 31 is capable of driving the driven gear 32 engaged with the driving gear 31 to rotate, and the rotating driven gear 32 is capable of driving the outer valve body 36 engaged with the driven gear 32 to rotate. The valve plate 35 is clamped between the valve core 34 and the outer valve body 36, the outer wall of the valve plate 35 is threadedly connected with the inner wall of the outer valve body 36, and the inner wall of the valve plate 35 is in contact with the valve core 34. The valve core 34 is provided with the stopper 37 for blocking the circumferential rotation of the valve plate 35. Therefore, when the outer valve body 36 rotates, the valve plate 35 can only move up and down along the valve core main body 38 to control the size of the opening of the throttle valve 3.

[0079] Since the valve core main body 38 is a tubular circular truncated cone, the small-diameter end of the valve core main body 38 faces the natural gas well. When the plate-shaped valve plate 35 moves downward along the valve core main body 38, the opening of the throttle valve 3 will gradually decrease. Conversely, when the valve plate 35 moves upward along the valve core main body 38, the opening of the throttle valve 3 will gradually increase.

[0080] Specifically, when the valve plate 35 moves downward, the opening of the throttle valve 3 gradually decreases until it is closed. When the valve plate 35 moves upward, the opening of the throttle valve 3 gradually increases until it reaches the maximum opening. In the embodiment, the up-and-down position of the valve plate 35 can be controlled by adjusting the rotating position of the driving gear 31, so as to adjust the size of the opening of the throttle valve 3 to accurately control the filling flow rate.

[0081] When continuous filling is required for a long time, if the filling flow rate is unchanged, the driving gear 31 only needs to be parked at the current position, and the valve plate 35 is stationary at the corresponding position, so as to realize continuous filling.

[0082] When continuous, small-dose medicament is needed, the drive gear 31 is first adjusted to make the valve plate 35 move downward until the opening degree of the throttle valve 3 meets the requirement, and the drive gear 31 is stopped at the current position after the flow regulation is completed, and the valve plate 35 is static at the corresponding position, so that continuous, small-dose medicament is achieved.

[0083] When continuous, small-dose medicament is needed, the drive gear 31 is first adjusted to make the valve plate 35 move downward until the opening degree of the throttle valve 3 meets the requirement, and the drive gear 31 is stopped at the current position after the flow regulation is completed, and the valve plate 35 is static at the corresponding position, so that continuous, small-dose medicament is achieved.

[0084] The throttle valve 3 can accurately control the flow of medicament and achieve long-time continuous medicament, which can meet the needs of continuous, small-dose medicament.

[0085] The throttle valve 3 of the embodiment can accurately control the flow of medicament and achieve long-time continuous medicament, which is beneficial to meet the process requirements and can meet the needs of continuous, small-dose medicament.

[0086] Embodiment Two

[0087] As shown in Figure 4 and Figure 5 , the filling device comprises a housing 4, which comprises a tubular body and a containing cavity in communication with each other; the valve core connecting part 39 of the throttle valve 3 is threadedly connected with the inner wall of the tubular body, and the valve core connecting part 39 of the throttle valve 3 is connected with the valve core body 38 in an up-down manner; the drive unit is located in the containing cavity.

[0088] The housing 4 provides a containing space for the throttle valve 3.

[0089] The valve core connecting part 39 of the throttle valve 3 is threadedly connected with the inner wall of the tubular body, and the valve core connecting part 39 of the throttle valve 3 is connected with the valve core body 38 in an up-down manner, so as to fix the valve core body 38 on the housing 4.

[0090] The drive unit is located in the containing cavity, so that it can be smoothly connected with the outer valve body 36.

[0091] The housing 4 of the embodiment provides a containing space for the throttle valve 3.

[0092] The filling device of the embodiment can accurately control the flow of medicament and achieve long-time continuous medicament due to the use of the above-mentioned throttle valve 3, which is beneficial to meet the process requirements and can meet the needs of continuous, small-dose medicament.

[0093] Embodiment Three

[0094] The filling device is used to fill medicament.

[0095] Firstly, the filling device is installed into the pipeline through the movable joint 1. As shown in Figure 5As shown, upstream of the pipeline is a balance tank 20, and downstream of the pipeline is a gas production tree 10. The balance tank 20 is provided with a balance tank 20 filling opening 21 at the top.

[0096] The medicament is filtered by the filter screen 2, enters the throttle valve 3, and is filtered of slag and other impurities.

[0097] The opening of the throttle valve 3 is adjusted by the adjusting disc 7, and the filling flow rate is monitored in real time by using the observation window 5. When the filling flow rate is too large, the valve plate 35 can be moved downward to reduce the opening of the throttle valve 3; when the filling flow rate is too small, the valve plate 35 can be moved upward to increase the opening of the throttle valve 3.

[0098] If an abnormal situation occurs, the throttle valve 3 can be quickly closed by the quick response valve 6 to avoid losses caused by the throttle valve 3 not being closed in time. Alternatively, the quick response valve 6 is a manually adjusted valve.

[0099] In the description of the present application, it should be understood that the terms “upper”, “lower”, “bottom”, “top”, “front”, “back”, “inner”, “outer”, “left”, “right” and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0100] Although the present application is described herein with reference to particular embodiments, it should be understood that these examples are merely illustrative of the principles and applications of the present application. It should therefore be understood that numerous modifications can be made to the illustrative embodiments, and that other arrangements can be devised without departing from the spirit and scope of the present application as defined by the appended claims. It should be understood that the features described in connection with one embodiment can be used in conjunction with other embodiments described herein. It should also be understood that features described in connection with separate embodiments can be used in combination.

Claims

1. A filling device, characterized in that The utility model relates to a filling device, including: a shell and a throttle valve, the shell includes a tubular body and a containing cavity in communication with each other; the throttle valve includes: a drive unit including a driving gear and a driven gear in mesh with each other; an outer valve body, the outer wall of which is in mesh with the driven gear and can rotate under the driving of the driven gear; a valve core connected with the outer valve body through a bearing, the valve core is provided with a stopper; the valve core includes a valve core body which is a tubular circular truncated cone; and a valve plate between the valve core body and the outer valve body, the valve plate is connected with the outer valve body through a pipe thread, the outer valve body can drive the valve plate to move up and down along the valve core body under the limiting of the stopper to control the size of the throttle valve opening; the valve plate has two, the bottom of the two valve plates is provided with a matching surface, the matching surface is a vertical surface, and the matching surfaces of the two valve plates can be pressurized to contact to close the throttle valve; the stopper is arranged protruding from the outer wall of the valve core, the stopper is in contact with the valve plate and blocks the rotation of the valve plate; the driving gear is connected to an adjusting disc, the adjusting disc is used for driving the driving gear, the adjusting disc is marked with a scale, the scale is used for recording the parking position of the driving gear, and the driving gear is directly adjusted to the position for the next time filling; the valve core connecting part of the throttle valve is threadedly connected with the inner wall of the tubular body, the valve core connecting part of the throttle valve is connected with the valve core body up and down, so that the valve core body is fixed on the shell; the drive unit is located in the containing cavity.

2. The filling device according to claim 1, characterized in that a connecting rod is connected between the drive unit and the adjusting disc, the connecting rod passes through the containing cavity of the shell, and a sealing cover is arranged at the contact position of the connecting rod and the shell.

3. The filling device of claim 1, wherein an observation window is arranged below the throttle valve.

4. The fill 'n go device according to claim 1, characterized in that a filter screen is arranged above the throttle valve.

5. The fill 'n go device according to claim 1, characterized in that a movable joint is arranged at the top of the filling device, and a liquid outlet assembly is arranged at the bottom of the filling device.

6. The filling device of claim 5, wherein the liquid outlet assembly includes a quick response valve.

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