Automatic oil pouring device for gas-liquid linkage actuating mechanism
By designing an automatic oil pouring device, the oil pump and pipeline system are used to automatically discharge and inject oil from the oil tank, solving the safety and efficiency problems in the oil pouring operation of the pneumatic-hydraulic linkage actuator, and realizing safe and reliable liquid level regulation.
Patent Information
- Application Number
- CN202520190631.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing pneumatic-hydraulic actuators pose significant risks and are time-consuming and labor-intensive for manual high-altitude operations during oil transfer, especially in narrow operating areas, which can easily lead to equipment damage or personal injury.
Design an automatic oil pouring device, including an oil pump, an oil injection pipeline and an oil discharge pipeline. The oil pump realizes the automatic discharge and injection of oil in the oil tank. Combined with a flow meter and a filter, the oil is monitored and filtered to ensure safe and reliable liquid level regulation.
It enables rapid adjustment of the oil level in the tank, avoids manual climbing operations, improves operational safety and efficiency, and reduces the risk of equipment damage.
Smart Images
Figure CN223677583U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to natural gas transportation technical field, concretely relates to a kind of for gas-liquid linkage actuator automatic oil pouring device. BACKGROUND
[0002] Gas-liquid linkage actuator is widely applied to long-distance pipeline gas transmission trunk and station yard in-and-out station key parts, is used with ball valve, does not need external energy source driving, relies on pipeline gas self pressure as power source to drive valve action, belongs to key equipment.Gas-liquid linkage actuator has two open, close gas-liquid tank, tank stores hydraulic oil, in routine maintenance process, oil tank blowdown, oil quality and oil level measurement are needed to check.Wherein the oil level height of oil tank is related to the opening and closing state of valve;When valve is in full open state, the oil level of close position oil tank is higher than that of open position oil tank, otherwise, the oil level of open position oil tank is higher than that of close position oil tank when valve is in full closed state, but the oil level of open and close oil tank in two states has corresponding standard, cannot be too high or too low to affect valve opening and closing action or cause oil injection fault.
[0003] When finding that the oil level of two oil tanks is too large in routine maintenance process, oil pouring operation needs to be carried out to open and close oil tank.Currently, conventional oil pouring operation usually needs to discharge and collect from bottom blowdown of oil tank with oil level too high, then inject from top plug opening of oil tank with oil level too low, to realize oil pouring operation.As the size of trunk valve gas-liquid linkage actuator is large, oil tank is needed to be filled manually, which needs to be climbed to operate;And, operation interface is narrow and limited, personnel is easily caused to fall by manual filling with oil bucket, causes equipment damage or personnel casualty, great danger, and operation is time-consuming and laborious. UTILITY MODEL CONTENTS
[0004] The utility model provides a kind of for gas-liquid linkage actuator automatic oil pouring device, to solve the problems in prior art.
[0005] The technical scheme that the utility model solves the above technical problem is as follows:
[0006] A kind of for gas-liquid linkage actuator automatic oil pouring device, including oil pump, oil injection pipeline one, oil injection pipeline two, oil discharge pipeline one and oil discharge pipeline two, the inlet of the oil pump is communicated with one end of the oil discharge pipeline one, the other end of the oil discharge pipeline one is used to communicate the bottom of oil tank;The outlet of the oil pump is communicated with one end of the oil injection pipeline one, the other end of the oil injection pipeline one is used to communicate the top of oil tank;
[0007] One end of the oil liquid injection pipeline two is communicated with the oil liquid discharge pipeline one, and the other end is used for communicating with an oil supply device; one end of the oil liquid discharge pipeline two is communicated with the oil liquid injection pipeline one, and the other end is used for communicating with an oil collection device; the other end of the oil liquid discharge pipeline one, one end of the oil liquid discharge pipeline two, the oil liquid injection pipeline two and the oil liquid injection pipeline one communicated with the oil liquid discharge pipeline two are respectively fixedly installed with valves.
[0008] The beneficial effect of the utility model is: in the use process, when the oil liquid level in the oil tank is too high, at this moment, part of the oil liquid in the oil tank can be discharged to the set liquid level through the oil liquid discharge pipeline one and the oil liquid discharge pipeline two by using the oil pump;
[0009] When the oil liquid level in the oil tank is too low, at this moment, the oil liquid can be injected into the oil tank to the set liquid level through the oil liquid injection pipeline one and the oil liquid injection pipeline two by using the oil pump.
[0010] The utility model discloses simple structure, reasonable in design can realize the automatic discharge and injection of the oil liquid in the oil tank, thereby realizing the quick regulation of the oil liquid level in the oil tank, convenient operation, high efficiency, and need not manual work to the top of the oil tank and work, safe and reliable.
[0011] On the basis of the above technical scheme, the utility model can also be improved as follows.
[0012] Further, the oil liquid discharge pipeline one is fixedly installed with a flowmeter, and the flowmeter is located between one end of the oil liquid discharge pipeline one and the communication place of the oil liquid injection pipeline two and the oil liquid discharge pipeline one.
[0013] The beneficial effect of adopting the above further scheme is simple structure, reasonable in design, and the flowmeter can be used to monitor the oil liquid amount discharged from the oil tank when the oil liquid level in the oil tank is too high, or the flowmeter can be used to monitor the oil liquid amount injected into the oil tank when the oil liquid level in the oil tank is too low.
[0014] Further, the oil liquid discharge pipeline one is also fixedly installed with an oil discharge filter, and the oil discharge filter is located between the other end of the oil liquid discharge pipeline one and the communication place of the oil liquid injection pipeline two and the oil liquid discharge pipeline one.
[0015] The beneficial effect of adopting the above further scheme is simple structure, reasonable in design, and when the oil liquid level in the oil tank is too high, the oil liquid in the oil tank can be discharged through the oil liquid discharge pipeline one and the oil liquid discharge pipeline two by using the oil pump, and in this process, the discharged oil liquid can be filtered by using the oil discharge filter, so as to avoid that the impurities in the oil liquid block the oil pump and ensure the working performance of the oil pump.
[0016] Further, the oil liquid injection pipeline two is fixedly installed with an oil injection filter.
[0017] The beneficial effect of the above further scheme is simple structure and reasonable design, and when the oil level in the oil tank is too low, the oil pump can be used to inject oil into the oil tank through the oil injection pipeline I and the oil injection pipeline II, and in this process, the oil filter can be used to filter the discharged oil, so as to avoid that impurities in the oil block the oil pump and ensure the working performance of the oil pump.
[0018] Further, an inlet threaded pipe is fixedly communicated at the inlet of the oil pump, and an inlet threaded sleeve is rotatably connected to one end of the oil discharge pipeline I and is threadedly sleeved on the inlet threaded pipe.
[0019] The beneficial effect of the above further scheme is simple structure and reasonable design, and the inlet threaded sleeve and the inlet threaded pipe are used to realize quick disassembly and assembly between the inlet of the oil pump and one end of the oil discharge pipeline I, which is convenient and saves time and effort.
[0020] Further, an outlet threaded pipe is fixedly communicated at the outlet of the oil pump, and an outlet threaded sleeve is rotatably connected to one end of the oil injection pipeline I and is threadedly sleeved on the outlet threaded pipe.
[0021] The beneficial effect of the above further scheme is simple structure and reasonable design, and the outlet threaded sleeve and the outlet threaded pipe are used to realize quick disassembly and assembly between the outlet of the oil pump and one end of the oil injection pipeline I, which is convenient and saves time and effort.
[0022] Further, an injection oil hole is arranged on the oil discharge pipeline I, and an injection oil sleeve is rotatably communicated at the injection oil hole and is detachably sleeved on one end of the oil injection pipeline II.
[0023] The beneficial effect of the above further scheme is simple structure and reasonable design, and the injection oil sleeve is used to realize detachable connection between one end of the oil injection pipeline II and the oil discharge pipeline I, which is convenient to disassemble and assemble.
[0024] Further, the injection oil sleeve is threadedly sleeved on one end of the oil injection pipeline II.
[0025] The beneficial effect of the above further scheme is simple structure and reasonable design, and the injection oil sleeve is threadedly connected to one end of the oil injection pipeline II, which is convenient to disassemble and assemble.
[0026] Further, an oil discharge hole is arranged on the oil injection pipeline I, and an oil discharge sleeve is rotatably communicated at the oil discharge hole and is detachably sleeved on one end of the oil discharge pipeline II.
[0027] The beneficial effect of the above further scheme is simple structure and reasonable design, and the oil discharge sleeve is used to realize detachable connection between one end of the oil discharge pipeline II and the oil injection pipeline I, which is convenient to disassemble and assemble.
[0028] Further, the discharge oil sleeve is sleeved on one end of the oil liquid discharge pipeline two.
[0029] The beneficial effect of the further scheme is simple structure, reasonable design, and convenient disassembly and assembly of the discharge oil sleeve and the oil liquid discharge pipeline two. BRIEF DESCRIPTION OF DRAWINGS
[0030] Fig. 1 It is a whole structure schematic view of the utility model;
[0031] Fig. 2 It is an exploded view of the oil pump and the oil liquid injection pipeline one and the oil liquid discharge pipeline one in the utility model;
[0032] Fig. 3 It is an exploded view of the oil liquid discharge pipeline one and the oil liquid injection pipeline two in the utility model;
[0033] Fig. 4 It is an exploded view of the oil liquid injection pipeline one and the oil liquid discharge pipeline two in the utility model.
[0034] In the drawings, the components represented by each reference numeral are listed as follows:
[0035] 1, oil pump; 2, oil liquid injection pipeline one; 3, oil liquid injection pipeline two; 4, oil liquid discharge pipeline one; 5, oil liquid discharge pipeline two; 6, oil tank; 7, flow meter; 8, oil discharge filter; 9, oil injection filter; 10, inlet threaded pipe; 11, inlet threaded sleeve; 12, outlet threaded pipe; 13, outlet threaded sleeve; 14, injection oil sleeve; 15, discharge oil sleeve; 16, valve. DETAILED DESCRIPTION
[0036] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0040] Example 1
[0041] like Figs. 1 to 4 As shown, this embodiment provides an automatic oil-pouring device for a pneumatic-hydraulic linkage actuator, including an oil pump 1, an oil injection pipeline 2, an oil injection pipeline 3, an oil discharge pipeline 4, and an oil discharge pipeline 5. The inlet of the oil pump 1 is connected to one end of the oil discharge pipeline 4, and the other end of the oil discharge pipeline 4 is used to connect to the bottom of the oil tank 6. The outlet of the oil pump 1 is connected to one end of the oil injection pipeline 2, and the other end of the oil injection pipeline 2 is used to connect to the top of the oil tank 6.
[0042] One end of the oil injection pipeline 3 is connected to the oil discharge pipeline 4, and the other end is used to connect to the oil supply equipment; one end of the oil discharge pipeline 5 is connected to the oil injection pipeline 2, and the other end is used to connect to the oil collection equipment; valves 16 are fixedly installed at the other end of the oil discharge pipeline 4, one end of the oil discharge pipeline 5, the oil injection pipeline 3, and the connection point between the oil injection pipeline 2 and the oil discharge pipeline 5.
[0043] During use, when the oil level in the oil tank 6 is too high, the oil pump 1 can be used to discharge part of the oil in the oil tank 6 to the set level through the oil discharge pipeline one 4 and the oil discharge pipeline two 5 at this time;
[0044] When the oil level in the oil tank 6 is too low, the oil pump 1 can be used to inject oil into the oil tank 6 to the set level through the oil injection pipeline one 2 and the oil injection pipeline two 3 at this time.
[0045] Preferably, in the embodiment, each of the above-mentioned valves 16 is preferably an electromagnetic valve, which is highly automated and easy to use.
[0046] The embodiment has simple structure and reasonable design, and can automatically discharge and inject oil in the oil tank, so as to quickly adjust the oil level in the oil tank, which is convenient and efficient, safe and reliable.
[0047] Embodiment 2
[0048] Based on the embodiment 1, in the embodiment, a flow meter 7 is fixedly installed on the oil discharge pipeline one 4, and the flow meter 7 is located between one end of the oil discharge pipeline one 4 and the communication between the oil injection pipeline two 3 and the oil discharge pipeline one 4.
[0049] The scheme has simple structure and reasonable design, and the flow meter 7 can be used to monitor the amount of oil discharged from the oil tank 6 when the oil level in the oil tank 6 is too high, or the flow meter 7 can be used to monitor the amount of oil injected into the oil tank 6 when the oil level in the oil tank 6 is too low.
[0050] It should be noted that the flow meter 7 is a prior art, and the specific structure and principle will not be described here.
[0051] Embodiment 3
[0052] Based on the above-mentioned embodiments, in the embodiment, an oil discharge filter 8 is also fixedly installed on the oil discharge pipeline one 4, and the oil discharge filter 8 is located between the other end of the oil discharge pipeline one 4 and the communication between the oil injection pipeline two 3 and the oil discharge pipeline one 4.
[0053] The scheme has simple structure and reasonable design, and when the oil level in the oil tank 6 is too high, the oil pump 1 can be used to discharge the oil in the oil tank 6 through the oil discharge pipeline one 4 and the oil discharge pipeline two 5, and in this process, the oil discharge filter 8 can be used to filter the discharged oil, so as to avoid that impurities in the oil block the oil pump 1 and ensure the working performance of the oil pump 1.
[0054] It should be noted that the oil discharge filter 8 is a prior art, and the specific structure and principle will not be described here.
[0055] Embodiment 4
[0056] On the basis of each of the above embodiments, in this embodiment, an oil injection filter 9 is fixedly installed on the oil liquid injection pipeline two 3.
[0057] This scheme has simple structure and reasonable design. When the oil liquid level in the oil tank 6 is too low, the oil liquid can be injected into the oil tank 6 through the oil liquid injection pipeline one 2 and the oil liquid injection pipeline two 3 by using the oil pump 1. In this process, the oil injection filter 9 can be used to filter the discharged oil liquid, so as to avoid that the impurities in the oil liquid block the oil pump 1 and ensure the working performance of the oil pump 1.
[0058] It should be noted that the oil injection filter 9 is a prior art, and the specific structure and principle will not be described here.
[0059] Embodiment 5
[0060] On the basis of each of the above embodiments, in this embodiment, an inlet threaded pipe 10 is fixedly communicated at the inlet of the oil pump 1, an inlet threaded sleeve 11 is rotatably connected to one end of the oil liquid discharge pipeline one 4, and the inlet threaded sleeve 11 is threadedly sleeved on the inlet threaded pipe 10.
[0061] This scheme has simple structure and reasonable design. The inlet threaded sleeve 11 and the inlet threaded pipe 10 are used to realize quick disassembly and assembly between the inlet of the oil pump 1 and one end of the oil liquid discharge pipeline one 4, which is convenient and saves time and effort.
[0062] Embodiment 6
[0063] On the basis of each of the above embodiments, in this embodiment, an outlet threaded pipe 12 is fixedly communicated at the outlet of the oil pump 1, an outlet threaded sleeve 13 is rotatably connected to one end of the oil liquid injection pipeline one 2, and the outlet threaded sleeve 13 is threadedly sleeved on the outlet threaded pipe 12.
[0064] This scheme has simple structure and reasonable design. The outlet threaded sleeve 13 and the outlet threaded pipe 12 are used to realize quick disassembly and assembly between the outlet of the oil pump 1 and one end of the oil liquid injection pipeline one 2, which is convenient and saves time and effort.
[0065] Embodiment 7
[0066] On the basis of each of the above embodiments, in this embodiment, an injection oil hole is arranged on the oil liquid discharge pipeline one 4, an injection oil sleeve 14 is rotatably communicated at the injection oil hole, and the injection oil sleeve 14 is detachably sleeved on one end of the oil liquid injection pipeline two 3.
[0067] This scheme has simple structure and reasonable design. The injection oil sleeve 14 is used to realize detachable connection between one end of the oil liquid injection pipeline two 3 and the oil liquid discharge pipeline one 4, which is convenient to disassemble and assemble.
[0068] It should be noted that the one end of the injection oil sleeve 14 is rotationally connected with the position around the corresponding injection oil hole on the oil liquid discharge pipeline 1, and the one end of the injection oil sleeve 14 is provided with a sealing ring, so that no oil leakage occurs after assembly.
[0069] Embodiment 8
[0070] In the embodiment, the injection oil sleeve 14 is threadedly sleeved on the one end of the oil liquid injection pipeline 2.
[0071] The scheme has simple structure and reasonable design, the injection oil sleeve 14 is threadedly connected with the one end of the oil liquid injection pipeline 2, and is convenient to disassemble and assemble.
[0072] Based on the above scheme, the one end of the oil liquid injection pipeline 2 is provided with a threaded section matched with the injection oil sleeve 14.
[0073] Embodiment 9
[0074] On the basis of the above embodiments, in the embodiment, the oil liquid injection pipeline 1 is provided with a discharge oil hole, a discharge oil sleeve 15 rotationally communicates at the discharge oil hole, and the discharge oil sleeve 15 is detachably sleeved on the one end of the oil liquid discharge pipeline 2.
[0075] The scheme has simple structure and reasonable design, and the discharge oil sleeve 15 can realize detachable connection between the one end of the oil liquid discharge pipeline 2 and the oil liquid injection pipeline 1, and is convenient to disassemble and assemble.
[0076] It should be noted that the one end of the discharge oil sleeve 15 is rotationally connected with the position around the corresponding discharge oil hole on the oil liquid injection pipeline 1, and the one end of the discharge oil sleeve 15 is provided with a sealing ring, so that no oil leakage occurs after assembly.
[0077] Embodiment 10
[0078] On the basis of the embodiment 9, in the embodiment, the discharge oil sleeve 15 is threadedly sleeved on the one end of the oil liquid discharge pipeline 2.
[0079] The scheme has simple structure and reasonable design, the discharge oil sleeve 15 is threadedly connected with the one end of the oil liquid discharge pipeline 2, and is convenient to disassemble and assemble.
[0080] Based on the above scheme, the one end of the oil liquid discharge pipeline 2 is provided with a threaded section matched with the discharge oil sleeve 15.
[0081] The working principle of the utility model is as follows:
[0082] During use, when the oil level in the oil tank 6 is too high, the oil pump 1 can be used to discharge part of the oil in the oil tank 6 to the set level through the oil discharge pipeline one 4 and the oil discharge pipeline two 5; at this time, the valves 16 on the oil discharge pipeline one 4 and the oil discharge pipeline two 5 are opened respectively, and the valves 16 on the oil injection pipeline one 2 and the oil injection pipeline two 3 are closed respectively;
[0083] When the oil level in the oil tank 6 is too low, the oil pump 1 can be used to inject oil into the oil tank 6 to the set level through the oil injection pipeline one 2 and the oil injection pipeline two 3; at this time, the valves 16 on the oil injection pipeline one 2 and the oil injection pipeline two 3 are opened respectively, and the valves 16 on the oil discharge pipeline one 4 and the oil discharge pipeline two 5 are closed respectively.
[0084] It should be noted that the various electronic components involved in the present application all adopt existing technologies, and the above-mentioned components are electrically connected with the controller, and the control circuit between the controller and each component is an existing technology.
[0085] It is apparent to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims to which they relate.
[0086] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
[0087] The above is only the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A device for automatically draining oil from a pneumatic-hydraulic actuator, characterized in that: The oil pump (1), oil injection pipeline one (2), oil injection pipeline two (3), oil discharge pipeline one (4) and oil discharge pipeline two (5), the inlet of the oil pump (1) is communicated with one end of the oil discharge pipeline one (4), the other end of the oil discharge pipeline one (4) is used for communicating the bottom of the oil tank (6); the outlet of the oil pump (1) is communicated with one end of the oil injection pipeline one (2), the other end of the oil injection pipeline one (2) is used for communicating the top of the oil tank (6); The other end of the oil injection pipeline two (3) is communicated with the oil discharge pipeline one (4), the other end is used for communicating the oil supply equipment; one end of the oil discharge pipeline two (5) is communicated with the oil injection pipeline one (2), the other end is used for communicating the oil collecting equipment; the other end of the oil discharge pipeline one (4), one end of the oil discharge pipeline two (5), the oil injection pipeline two (3) and the oil injection pipeline one (2) are respectively fixedly installed with valves (16).
2. The automatic oil draining device for gas-hydraulic actuator according to claim 1, characterized in that: The flowmeter (7) is fixedly installed on the oil discharge pipeline one (4), and the flowmeter (7) is located between one end of the oil discharge pipeline one (4) and the communication place of the oil injection pipeline two (3) and the oil discharge pipeline one (4).
3. The automatic oil draining device for gas-hydraulic actuator according to claim 1, characterized in that: The oil discharge filter (8) is also fixedly installed on the oil discharge pipeline one (4), and the oil discharge filter (8) is located between the other end of the oil discharge pipeline one (4) and the communication place of the oil injection pipeline two (3) and the oil discharge pipeline one (4).
4. The automatic oil draining device for gas-hydraulic actuator according to claim 1, characterized in that: The oil injection filter (9) is fixedly installed on the oil injection pipeline two (3).
5. The automatic oil draining device for gas-hydraulic actuator according to any one of claims 1-4, characterized in that: The inlet threaded pipe (10) is fixedly communicated at the inlet of the oil pump (1), one end of the oil discharge pipeline one (4) is rotatably connected with the inlet threaded sleeve (11), and the inlet threaded sleeve (11) is threadedly sleeved on the inlet threaded pipe (10).
6. The automatic oil draining device for gas-hydraulic actuator according to any one of claims 1-4, characterized in that: The outlet threaded pipe (12) is fixedly communicated at the outlet of the oil pump (1), one end of the oil injection pipeline one (2) is rotatably connected with the outlet threaded sleeve (13), and the outlet threaded sleeve (13) is threadedly sleeved on the outlet threaded pipe (12).
7. The automatic oil draining device for gas-hydraulic actuator according to any one of claims 1-4, characterized in that: The injection oil hole is arranged on the oil discharge pipeline one (4), the injection oil sleeve (14) is rotatably communicated at the injection oil hole, and the injection oil sleeve (14) is detachably sleeved on one end of the oil injection pipeline two (3).
8. The automatic oil draining device for gas-hydraulic actuator according to claim 7, characterized in that: The injection oil sleeve (14) is threadedly sleeved on one end of the oil injection pipeline two (3).
9. The automatic oil draining device for gas-hydraulic actuator according to any one of claims 1-4, characterized in that: The discharge oil hole is arranged on the oil injection pipeline one (2), the discharge oil sleeve (15) is rotatably communicated at the discharge oil hole, and the discharge oil sleeve (15) is detachably sleeved on one end of the oil discharge pipeline two (5).
10. The automatic oil draining device for gas-hydraulic actuator according to claim 9, characterized in that: The discharge oil sleeve (15) is threadedly sleeved on one end of the oil discharge pipeline two (5).