Accident oil drain valve with mechanical lock
By introducing mechanical locking components into the accident oil discharge valve, the safety hazards caused by external impact or misoperation are solved, ensuring that the oil discharge channel can only be opened when necessary, avoiding abnormal failures and improving the transformer security.
Patent Information
- Application Number
- CN202420527218.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-03-18
AI Technical Summary
The accidental oil discharge valve is susceptible to external impact or incorrect operation, causing the handle to rotate, causing the oil discharge channel to be opened under abnormal conditions, causing the transformer to fail, and poses safety hazards.
An accident oil discharge valve with mechanical locking is designed. The locking member is plugged or disconnected from the rotating shaft assembly through the locking assembly to avoid external impact or misoperation to drive the handle rotation, including the handle assembly, the rotating shaft assembly and the locking assembly. The locking assembly includes a locking box, a locking member and a movable member, which is inserted or disconnected from the shaft assembly by applying force to ensure that the oil drainage passage can be opened only if necessary.
It effectively avoids external impact or accidental operation to drive the handle to rotate, reduces safety hazards, and can open the oil drainage channel normally when needed, control the development of accidents, and protect the transformer.
Smart Images
Figure CN222334646U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of emergency oil drain valves, and in particular to an emergency oil drain valve with a mechanical lock. Background Art
[0002] Transformers are often installed in large power stations, such as new energy stations. In high temperature environments, transformer oil is prone to continuous combustion and explosion, causing huge losses to the station. Therefore, an emergency oil drain valve is installed on the transformer. The main function of the emergency oil drain valve is to open the emergency oil drain valve to quickly drain the transformer oil when an accident occurs in the transformer, lower the transformer oil level, prevent re-ignition, control the development of the accident, and protect the transformer and the surrounding environment.
[0003] In the prior art, a person can open the emergency oil drain valve by rotating a handle, thereby opening the oil drain passage, allowing the transformer to drain oil quickly, lowering the transformer oil level and preventing re-ignition.
[0004] However, since the handle of the emergency oil drain valve is often arranged on the outside of the shell, it is easy to be hit by a sudden external impact or accidentally rotate the handle due to misoperation, causing the emergency oil drain valve to open under abnormal circumstances, causing transformer failure and posing a safety hazard. Utility Model Content
[0005] The present application provides an emergency oil drain valve with a mechanical lock, which is used to solve the problem that the emergency oil drain valve is susceptible to sudden external impact or misoperation, which may cause the handle to rotate accidentally, causing the emergency oil drain valve to open under abnormal circumstances, causing transformer failure and posing a safety hazard.
[0006] In order to achieve the above purpose, the technical solution of this application is as follows:
[0007] The present application provides an emergency oil drain valve with a mechanical lock, comprising: a handle assembly, a rotating shaft assembly and a lock assembly;
[0008] The handle assembly is connected to the shaft assembly, and the handle assembly drives the shaft assembly to rotate to open or close the oil drain channel;
[0009] The locking assembly comprises a locking box, a locking member and a movable member, wherein the locking box has a locking cavity, the locking member is located in the locking cavity and partially passes through the locking cavity, and the movable member is arranged along the extending direction of the locking cavity;
[0010] The movable member is configured to drive the locking member to move along the extension direction of the locking cavity so as to enable the locking member to be plugged into or out of the rotation shaft assembly;
[0011] The locking member includes a stopper and an insertion rod. The stopper is arranged in the locking cavity. One end of the stopper is used to be connected with the movable member, and the other end is connected with the insertion rod. The insertion rod is used to be plugged in or out of the rotation shaft assembly.
[0012] An indicator line is arranged on the movable part, and the indicator line is used to indicate the abutment position between the locking part and the locking cavity.
[0013] In some possible implementations, the emergency oil drain valve with mechanical lock provided in the present application has a spring disposed in the locking chamber, the spring being sleeved on the movable part, one end of the spring being connected to the block, and the other end being connected to the locking chamber; the spring is configured so that the movable part moves along the extension direction of the locking chamber, driving the spring to compress or stretch, so that the locking part and the rotating shaft assembly are disconnected or connected.
[0014] In some possible implementations, the emergency oil drain valve with mechanical lock provided in the present application has a groove provided on the shaft assembly, and the plug rod is plugged into or out of the groove.
[0015] In some possible implementations, the emergency oil drain valve with mechanical lock provided in the present application is provided with a through hole at one end of the locking box facing the shaft assembly, the through hole is arranged opposite to the groove, the through hole is connected to the locking cavity, and part of the insertion rod passes through the through hole and out of the locking cavity.
[0016] In some possible implementations, the emergency oil drain valve with mechanical lock provided by the present application has an insert rod that is a rectangular rod and a through hole that is a rectangular hole that matches the insert rod.
[0017] In some possible implementations, the emergency oil drain valve with mechanical lock provided by the present application, the lock assembly also includes a pull ring, and the pull ring is arranged at an end of the movable part away from the lock part.
[0018] In some possible implementations, the emergency oil drain valve with mechanical lock provided by the present application has an access hole provided at one end of the lock box away from the shaft assembly, and the movable part enters and exits the lock cavity through the access hole;
[0019] The size of the access hole is smaller than the size of the pull ring.
[0020] In some possible implementations, the emergency oil drain valve with mechanical lock provided by the present application, the locking assembly also includes a magnetic member, the magnetic member is arranged on the side of the locking member facing the movable member, the movable member has a first magnetic pole, and the magnetic member is configured so that the second magnetic pole of the magnetic member is opposite to or the same in polarity as the first magnetic pole of the movable member, driving the locking member to move along the extension direction of the locking cavity, so that the locking member and the rotating shaft assembly are disconnected or connected.
[0021] The present application provides an emergency oil drain valve with mechanical lock, comprising: a handle assembly, a rotating shaft assembly and a locking assembly; the handle assembly is connected to the rotating shaft assembly, and the handle assembly drives the rotating shaft assembly to rotate to open or close the oil drain channel; the locking assembly comprises a locking box, a locking member and a movable member, the locking box has a locking cavity, the locking member is located in the locking cavity and partially passes through the locking cavity, and the movable member is arranged along the extension direction of the locking cavity. By applying force to the movable member, it moves along the extension direction of the locking cavity, driving the locking member to move along the extension direction of the locking cavity, so that the locking member is plugged into the rotating shaft assembly, so that the handle assembly cannot be rotated, and the handle assembly is prevented from being accidentally driven to rotate and open the oil drain channel due to sudden external impact or misoperation; or when necessary, the operator disengages the locking member from the rotating shaft assembly to facilitate the rotation of the handle assembly to open the oil drain channel, allowing the transformer oil to flow into the accident oil pool, controlling the development of the accident and protecting the transformer. Therefore, the present application can prevent the handle assembly from accidentally rotating due to sudden external impact or misoperation by plugging or unplugging the locking member and the rotating shaft assembly, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0023] Figure 1 A schematic diagram of the structure of an emergency oil drain valve with mechanical lock provided in an embodiment of the present application;
[0024] Figure 2 for Figure 1 A schematic diagram of the structure in which the middle locking member and the rotating shaft assembly are disengaged from each other;
[0025] Figure 3 for Figure 1 A schematic diagram of the structure of the middle plug rod;
[0026] Figure 4 A schematic diagram of the structure of a magnetic attraction component in an emergency oil drain valve with mechanical lock provided in an embodiment of the present application;
[0027] Figure 5 for Figure 4 A schematic diagram of a structure in which the magnetic poles of the central magnetic attraction part and the movable part are opposite;
[0028] Figure 6 for Figure 5 Schematic diagram of the structure of the middle locking member and the shaft assembly being plugged in.
[0029] Description of reference numerals:
[0030] 100-handle assembly;
[0031] 200-shaft assembly;
[0032] 210-groove;
[0033] 300-locking assembly;
[0034] 310-locking box; 311-locking cavity; 312-through hole;
[0035] 320-locking member; 321-stopper; 322-insertion rod;
[0036] 330-moving parts;
[0037] 400-spring;
[0038] 500-magnetic parts;
[0039] 600-indicator line;
[0040] 700-Pull ring.
[0041] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0042] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.
[0043] It should be noted that in the description of the embodiments of the present application, terms such as "upper", "lower", "inside" and "outside" indicating orientation or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description, and do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.
[0044] In addition, it should be noted that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0045] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0046] As mentioned in the background technology, in order to prevent the transformer oil from continuously exploding under high temperature environment and causing huge losses to the station, an emergency oil drain valve is installed on the transformer. When an accident occurs in the transformer, the emergency oil drain valve opens the emergency oil drain valve to drain the transformer oil quickly, lower the transformer oil level, prevent re-ignition, control the development of the accident, and protect the transformer and the surrounding environment. The personnel can open the emergency oil drain valve by rotating the handle, thereby opening the oil drain channel, allowing the transformer to drain oil quickly, lower the transformer oil level, and prevent re-ignition. Since the handle of the emergency oil drain valve is often set on the outside of the shell, it is easy to be hit by a sudden impact from the outside or the handle is accidentally rotated by misoperation. For example, during the daily maintenance process of the operator, the disassembled parts are easy to bump into the handle and drive the handle to rotate, which is easy to cause the emergency oil drain valve to be opened under abnormal circumstances, causing transformer failure, and posing a safety hazard.
[0047] In view of this, the present application provides an emergency oil drain valve with mechanical lock, including: a handle assembly, a rotating shaft assembly and a locking assembly; the handle assembly is connected to the rotating shaft assembly, and the handle assembly drives the rotating shaft assembly to rotate to open or close the oil drain channel; the locking assembly includes a locking box, a locking member and a movable member, the locking box has a locking cavity, the locking member is located in the locking cavity and partially passes through the locking cavity, and the movable member is arranged along the extension direction of the locking cavity. By applying force to the movable member, it moves along the extension direction of the locking cavity, driving the locking member to move along the extension direction of the locking cavity, so that the locking member is plugged into the rotating shaft assembly, so that the handle assembly cannot be rotated, avoiding sudden external impact or misoperation to accidentally drive the handle assembly to rotate and open the oil drain channel; or when necessary, the operator disengages the locking member from the rotating shaft assembly, which is convenient for rotating the handle assembly to open the oil drain channel, allowing the transformer oil to flow into the accident oil pool, controlling the development of the accident, and protecting the transformer. Therefore, the present application can prevent the handle assembly from accidentally rotating due to sudden external impact or misoperation by plugging or unplugging the locking member and the rotating shaft assembly, thereby reducing safety hazards.
[0048] Combine the following Figures 1 to 6 The present application is described in detail with reference to the accompanying drawings and specific embodiments.
[0049] Figure 1 A schematic diagram of the structure of an emergency oil drain valve with mechanical lock provided in an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the structure in which the middle locking member and the rotating shaft assembly are disengaged from each other; Figure 3 for Figure 1 A schematic diagram of the structure of the middle plug rod; Figure 4 A schematic diagram of the structure of a magnetic attraction component in an emergency oil drain valve with mechanical lock provided in an embodiment of the present application; Figure 5 for Figure 4 A schematic diagram of a structure in which the magnetic poles of the central magnetic attraction part and the movable part are opposite; Figure 6 for Figure 5 Schematic diagram of the structure of the middle locking member and the shaft assembly being plugged in.
[0050] The present application provides an emergency oil drain valve with a mechanical lock, comprising: a handle assembly 100, a shaft assembly 200 and a locking assembly 300; the handle assembly 100 is connected to the shaft assembly 200, and the handle assembly 100 drives the shaft assembly 200 to rotate to open or close the oil drain channel; the locking assembly 300 comprises a locking box 310, a locking member 320 and a movable member 330, the locking box 310 has a locking cavity 311, the locking member 320 is located in the locking cavity 311 and partially passes through the locking cavity 311, and the movable member 330 is arranged along the extension direction of the locking cavity 311; the movable member 330 is configured to drive the locking member 320 to move along the extension direction of the locking cavity 311, so that the locking member 320 is plugged in or out of the rotating shaft assembly 200.
[0051] In specific implementation, the handle assembly 100 drives the shaft assembly 200 to rotate to open or close the oil drain channel. For example, the handle assembly 100 rotates clockwise to open the oil drain channel so that the transformer oil flows into the accident oil pool; the handle assembly 100 rotates counterclockwise to close the oil drain channel so that the transformer oil stops flowing into the accident oil pool.
[0052] In order to prevent the handle assembly 100 from being turned by mistake, the present application further provides a locking assembly 300, which includes a locking box 310, a locking member 320 and a movable member 330. The locking box 310 has a locking cavity 311, the locking member 320 is located in the locking cavity 311 and partially passes through the locking cavity 311, and the movable member 330 is arranged along the extension direction of the locking cavity 311. When in use, force is applied to the movable member 330 to make it move along the extension direction of the locking cavity 311, driving the locking member 320 to move along the extension direction of the locking cavity 311, so that the locking member 320 is plugged into or out of the rotation shaft assembly 200.
[0053] The emergency oil drain valve with mechanical lock in the embodiment of the present application includes: a handle assembly 100, a shaft assembly 200 and a locking assembly 300; the handle assembly 100 is connected to the shaft assembly 200, and the handle assembly 100 drives the shaft assembly 200 to rotate to open or close the oil drain channel; the locking assembly 300 includes a locking box 310, a locking member 320 and a movable member 330, the locking box 310 has a locking cavity 311, the locking member 320 is located in the locking cavity 311 and partially passes through the locking cavity 311, and the movable member 330 is arranged along the extension direction of the locking cavity 311. By applying force to the movable part 330, the movable part 330 moves along the extension direction of the locking cavity 311, driving the locking part 320 to move along the extension direction of the locking cavity 311, so that the locking part 320 is plugged into the rotating shaft assembly 200, thereby preventing the handle assembly 100 from being rotated and opening the oil drain channel due to sudden external impact or misoperation; or when necessary, the operator disengages the locking part 320 from the rotating shaft assembly 200 to facilitate rotating the handle assembly 100, so that the oil drain channel is opened and the transformer oil flows into the accident oil pool, thereby controlling the development of the accident and protecting the transformer. Therefore, the present application can prevent the handle assembly 100 from being rotated due to sudden external impact or misoperation by plugging or disengaging the locking part 320 from the rotating shaft assembly 200, thereby reducing safety hazards.
[0054] In some embodiments, the emergency oil drain valve with mechanical lock provided by the present application, the locking member 320 includes a block 321 and a plug rod 322, the block 321 is arranged in the locking cavity 311, one end of the block 321 is used to connect with the movable part 330, and the other end is connected with the plug rod 322, and the plug rod 322 is used to connect with or disconnect the shaft assembly 200.
[0055] In specific implementation, the block 321 is arranged in the locking cavity 311, and the two ends of the block 321 abut against the locking cavity 311. Applying force to the block 321 can make the block 321 move along the extension direction of the locking cavity 311. One end of the block 321 is used to connect with the movable part 330, and the other end is connected with the plug rod 322. The block 321 drives the plug rod 322 to move along the extension direction of the locking cavity 311. When the plug rod 322 is plugged into the rotating shaft assembly 200, the handle assembly 100 cannot drive the rotating shaft assembly 200 to rotate and close the oil drain pipe; when the plug rod 322 is disconnected from the rotating shaft assembly 200, the handle assembly 100 can drive the rotating shaft assembly 200 to rotate to open the oil drain pipe and allow the transformer oil to flow into the accident oil pool.
[0056] In some other embodiments, the emergency oil drain valve with mechanical lock provided by the present application has a spring 400 disposed in the lock chamber 311, the spring 400 is sleeved on the movable part 330, one end of the spring 400 is connected to the stopper 321, and the other end is connected to the lock chamber 311;
[0057] The spring 400 is configured such that the movable member 330 moves along the extension direction of the locking cavity 311 to drive the spring 400 to compress or stretch, so that the locking member 320 and the rotating shaft assembly 200 are disconnected or connected.
[0058] In specific implementation, the spring 400 is sleeved on the movable part 330, and the movable part 330 moves along the extension direction of the locking cavity 311, driving the block 321 to move synchronously along the extension direction of the locking cavity 311. Since one end of the spring 400 is connected to the block 321, and the other end is connected to the locking cavity 311, when the block 321 moves toward the shaft assembly 200, it drives the spring 400 to extend so that the locking part 320 is plugged into the shaft assembly 200; when the block 321 moves away from the shaft assembly 200, it drives the spring 400 to compress so that the locking part 320 is disengaged from the shaft assembly 200.
[0059] In some embodiments, the emergency oil drain valve with mechanical lock provided by the present application has a groove 210 disposed on the shaft assembly 200 , and the insertion rod 322 is plugged into or out of the groove 210 .
[0060] In a specific implementation, the groove 210 is arranged on the side of the shaft assembly 200 facing the locking member 320, and the insertion rod 322 is plugged into the groove 210. At this time, the handle assembly 100 can drive the shaft assembly 200 to rotate. It should be noted that when the insertion rod 322 is plugged into the groove 210, one end of the insertion rod 322 can abut against the groove 210, or a certain gap can be left with the groove 210 to reduce the wear of the insertion rod 322 and the groove 210.
[0061] In some embodiments, the emergency oil drain valve with mechanical lock provided by the present application has a through hole 312 provided at one end of the locking box 310 facing the shaft assembly 200, the through hole 312 is arranged opposite to the groove 210, the through hole 312 is connected to the locking cavity 311, and a part of the insertion rod 322 passes through the through hole 312 and out of the locking cavity 311.
[0062] In a specific implementation, the through hole 312 is arranged opposite to the groove 210, and the through hole 312 is connected to the locking cavity 311 along the extension direction of the locking cavity 311, and part of the insertion rod 322 passes through the locking cavity 311 through the through hole 312 and is plugged into the groove 210. It should be noted that in order to facilitate the insertion rod 322 to quickly pass through the through hole 312, a certain margin is left between the insertion rod 322 and the through hole 312.
[0063] In some embodiments, the emergency oil drain valve with mechanical lock provided by the present application has the plug rod 322 as a rectangular rod, and the through hole 312 as a rectangular hole matching the plug rod 322 .
[0064] In a specific implementation, the insertion rod 322 is a rectangular rod, which includes a longer side and a shorter side. The longer side is larger than the aperture of the through hole 312, and the longer side is used to abut against the locking cavity 311 to keep the spring 400 compressed. When the shorter side is less than or equal to the aperture of the through hole 312, the insertion rod 322 can pass through the through hole 312 to connect with the shaft assembly 200.
[0065] During use, the movable part 330 drives the spring 400 to compress, so that the insertion rod 322 is disengaged from the groove 210, and the movable part 330 is rotated to drive the insertion rod 322 to rotate, so that the longer side of the insertion rod 322 abuts against the locking cavity 311, so that the spring 400 remains in a compressed state. At this time, the handle assembly 100 can drive the shaft assembly 200 to rotate to open the oil drain pipeline and allow the transformer oil to flow into the accident oil pool; the movable part 330 is rotated to drive the insertion rod 322 to rotate, so that the shorter side of the insertion rod 322 passes through the hole 312 on the locking cavity 311, so that the spring 400 stretches, releasing the elastic force to connect the insertion rod 322 with the groove 210. At this time, the handle assembly 100 cannot drive the shaft assembly 200 to rotate, and the oil drain pipeline is closed.
[0066] In some embodiments, the emergency oil drain valve with mechanical lock provided by the present application, the lock assembly 300 further includes a pull ring 700 , and the pull ring 700 is arranged at one end of the movable part 330 away from the lock part 320 .
[0067] In a specific implementation, the pull ring 700 is connected to the movable member 330 and is disposed at one end of the movable member 330 away from the locking member 320. The present application does not limit the shape of the pull ring 700. For example, the pull ring can be annular, square, etc.
[0068] In some embodiments, after the pull ring 700 is released, the spring 400 extends quickly, driving the locking member 320 and the movable member 330 to move quickly. The pull ring 700 connected to the movable member 330 moves too fast, which may easily cause an impact on the locking box 310. Therefore, a protective layer may be provided on the side of the locking box 310 facing the pull ring 700 to mitigate the impact.
[0069] In some embodiments, the emergency oil drain valve with mechanical lock provided by the present application has an access hole 313 provided at one end of the locking box 310 away from the shaft assembly 200, and the movable part 330 enters and exits the locking cavity 311 through the access hole 313; the size of the access hole 313 is smaller than the size of the pull ring 700.
[0070] In a specific implementation, the end of the locking box 310 away from the rotating shaft assembly 200 is provided with an access hole 313, and the movable member 330 is detachably connected to the locking member 320, and the movable member 330 can enter and exit the locking cavity 311 through the access hole 313. In some embodiments, the movable member 330 can be a connecting rod, a magnetic key, etc., and the present application does not limit this.
[0071] It should be noted that the size of the access hole 313 is smaller than the size of the pull ring 700, so that the pull ring 700 is outside the locking box 310, which is convenient for applying force.
[0072] In some embodiments, the emergency oil drain valve with mechanical lock provided by the present application, the locking assembly 300 also includes a magnetic component 500, which is arranged on the side of the locking component 320 facing the movable component 330, and the movable component 330 has a first magnetic pole. The magnetic component 500 is configured so that the second magnetic pole of the magnetic component 500 is opposite to or the same as the polarity of the first magnetic pole of the movable component 330, driving the locking component 320 to move along the extension direction of the locking cavity 311, so that the locking component 320 and the shaft assembly 200 are disconnected or connected.
[0073] In a specific implementation, the second magnetic pole of the magnetic member 500 is arranged on the side of the locking member 320 facing the movable member 330, and the movable member 330 has a first magnetic pole. The magnetic attraction principle of the magnetic member 500 and the movable member 330 is utilized to realize the disconnection or connection between the locking member 320 and the rotating shaft assembly 200.
[0074] For example, the second magnetic pole of the magnetic attraction member 500 can be an N pole or an S pole. Taking the second magnetic pole as an example, Figures 4 to 6 , using the mutual repulsion of like-named magnetic poles, at this time, the first magnetic pole of the movable part 330 is the N pole, and the N pole of the movable part 330 is aligned with the N pole of the magnetic attraction part 500, driving the plug rod 322 to move away from the movable part 330, so that the plug rod 322 is plugged into the groove 210. At this time, the handle assembly 100 cannot drive the shaft assembly 200 to rotate, and the oil drain pipeline is closed; using the mutual attraction of different-named magnetic poles, the S pole of the movable part 330 is aligned with the N pole of the magnetic attraction part 500, driving the plug rod 322 to move toward the movable part 330, so that the plug rod 322 is disconnected from the groove 210. At this time, the handle assembly 100 can drive the shaft assembly 200 to rotate to open the oil drain pipeline and allow the transformer oil to flow into the accident oil pool.
[0075] In some other embodiments, the emergency oil drain valve with mechanical lock provided in the present application has an indicator line 600 disposed on the movable part 330 , and the indicator line 600 is used to indicate the abutment position between the locking part 320 and the locking cavity 311 .
[0076] In a specific implementation, in order to facilitate intuitive judgment of whether the locking member 320 and the rotating shaft assembly 200 are detached or connected, an indicator line 600 is provided on the movable member 330, and the indicator line 600 is used to indicate the abutment position between the locking member 320 and the locking cavity 311. It should be noted that the indicator line 600 can be a line, an indicator arrow, etc., and the present application does not impose any restrictions on this.
[0077] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.
[0078] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. An emergency oil drain valve with mechanical lock, characterized in that: It comprises: a handle assembly (100), a rotating shaft assembly (200) and a locking assembly (300); The handle assembly (100) is connected to the rotating shaft assembly (200), and the handle assembly (100) drives the rotating shaft assembly (200) to rotate so as to open or close the oil drain channel; The locking assembly (300) comprises a locking box (310), a locking member (320) and a movable member (330); the locking box (310) has a locking cavity (311) therein; the locking member (320) is located in the locking cavity (311) and partially passes through the locking cavity (311); and the movable member (330) is arranged along an extending direction of the locking cavity (311); The movable member (330) is configured to drive the locking member (320) to move along the extension direction of the locking cavity (311) so as to enable the locking member (320) to be plugged into or out of the rotation shaft assembly (200); The locking member (320) comprises a stopper (321) and an insertion rod (322); the stopper (321) is arranged in the locking cavity (311); one end of the stopper (321) is used to be connected to the movable member (330), and the other end is connected to the insertion rod (322); the insertion rod (322) is used to be plugged into or out of the rotation shaft assembly (200); An indication line (600) is provided on the movable member (330), and the indication line (600) is used to indicate the abutment position between the locking member (320) and the locking cavity (311).
2. The emergency oil drain valve with mechanical lock according to claim 1, characterized in that: A spring (400) is arranged in the locking cavity (311), and the spring (400) is sleeved on the movable part (330). One end of the spring (400) is connected to the stopper (321), and the other end is connected to the locking cavity (311); The spring (400) is configured such that the movable member (330) moves along the extension direction of the locking cavity (311), driving the spring (400) to compress or stretch, so that the locking member (320) and the rotating shaft assembly (200) are disconnected or connected.
3. The emergency oil drain valve with mechanical lock according to claim 2, characterized in that: The rotating shaft assembly (200) is provided with a groove (210), and the insertion rod (322) is plugged into or out of the groove (210).
4. The emergency oil drain valve with mechanical lock according to claim 3, characterized in that: A through hole (312) is provided at one end of the locking box (310) facing the rotating shaft assembly (200); the through hole (312) is arranged opposite to the groove (210); the through hole (312) is communicated with the locking cavity (311); a portion of the insertion rod (322) passes through the through hole (312) and out of the locking cavity (311).
5. The emergency oil drain valve with mechanical lock according to claim 4, characterized in that: The insertion rod (322) is a rectangular parallelepiped rod, and the through hole (312) is a rectangular hole matching the insertion rod (322).
6. The emergency oil drain valve with mechanical lock according to any one of claims 1 to 5, characterized in that: The locking assembly (300) further comprises a pull ring (700), wherein the pull ring (700) is arranged at one end of the movable member (330) away from the locking member (320).
7. The emergency oil drain valve with mechanical lock according to claim 6, characterized in that: An access hole (313) is provided at one end of the locking box (310) away from the rotating shaft assembly (200), and the movable member (330) enters and exits the locking cavity (311) through the access hole (313); The size of the access hole (313) is smaller than the size of the pull ring (700).
8. The emergency oil drain valve with mechanical lock according to claim 1, characterized in that: The locking assembly (300) further includes a magnetic member (500), wherein the magnetic member (500) is disposed on a side of the locking member (320) facing the movable member (330), and the movable member (330) has a first magnetic pole. The magnetic member (500) is configured such that the second magnetic pole of the magnetic member (500) is opposite to or the same in polarity as the first magnetic pole of the movable member (330), thereby driving the locking member (320) to move along the extension direction of the locking cavity (311), so that the locking member (320) and the shaft assembly (200) are disconnected or connected.