Liquid aspirator and liquid adding device

Abstract

The application provides a liquid pumping device and a liquid adding device. The liquid pumping device comprises a pump body arranged in a container to pump liquid in the container; a pipe body connected to the pump body to transmit the liquid; a holding part connected to one end of the pipe body away from the pump body, the holding part being connected to the pump body and capable of controlling the pump body; and a mounting part mounted on the pipe body, the mounting part and the pump body being located at different positions of the pipe body, the length of the pipe body between the mounting part and the pump body being variable, and the mounting part being detachably mounted on the container. When the pump body is inserted into the container, the user can flexibly adjust the deep position of the pump body in the container, and no matter the depth of the container is, the pump body can reach the target position such as the bottom of the container through adjustment, so that the liquid can be better pumped.

Description

Technical Field

[0001] This application relates to the field of liquid dispensing tools, and more particularly to a liquid pump and liquid dispensing device. Background Technology

[0002] In the current field of liquid pumps, common pumps typically connect the pump body to external operating components via a fixed-length tube. This structure proves inadequate when dealing with containers of varying depths. If the tube is too long, it may become tangled and coiled inside shallow containers, affecting operation and potentially causing breakage. If the tube is too short, it cannot reach the bottom of deep containers, leaving residual liquid at the bottom unpumped and resulting in waste. Furthermore, existing liquid pumps often lack universal and convenient fixing solutions, typically relying on specific threaded connectors or mounting brackets to connect to the container opening. However, the opening sizes and specifications of containers on the market vary widely, often requiring multiple adapters for a single pump. This not only increases cost and complexity but also makes it difficult to secure the pump to the container effectively when suitable connectors are unavailable. The pump body may wobble or detach from the container during operation, affecting the stability and safety of the pumping process and causing inconvenience to the operator. Summary of the Invention

[0003] This application provides a liquid extractor that can flexibly adapt to container depth and provides a universal fixing method, thereby improving the stability and safety of the liquid extraction process.

[0004] In a first aspect, embodiments of this application provide a liquid extractor, which includes: A pump body, used to be installed inside a container to draw liquid from the container; A pipe body, connected to the pump body, for transporting liquid; A grip, connected to the end of the tube away from the pump body, the grip being connected to the pump body and capable of controlling the pump body; and... The mounting part is installed on the pipe body. The mounting part and the pump body are located at different positions on the pipe body. The length of the pipe body between the mounting part and the pump body is variable. The mounting part is used for detachable installation on the container.

[0005] Optionally, the mounting part includes a connecting part and a clamping part that are connected to each other. The connecting part is movably connected to the tube body, and the clamping part is clamped to the container.

[0006] Optionally, the connecting part is sleeved on the tube body and can slide relative to the tube body. The connecting part has at least one spring piece, which elastically abuts against the tube body to engage with the tube body.

[0007] Optionally, the connecting part includes a sleeve and a spring piece. The sleeve is sleeved on the tube body and has a hollow opening. The spring piece is disposed in the hollow opening and one end of the spring piece is connected to the sleeve.

[0008] Optionally, the tube body is provided with a plurality of limiting grooves along its length direction, and the other end of the spring sheet is provided with a snap-fit ​​part protruding towards one side of the tube body. The snap-fit ​​part can be snapped into different limiting grooves so that the mounting part is limited to different positions of the tube body.

[0009] Optionally, the mounting portion further includes a flexible cover connected to the connecting portion, the flexible cover being disposed around the connecting portion, the flexible cover being used to cover the opening of the container; and / or, The mounting portion further includes a handle connected to the connecting portion, the handle being used to slide the mounting portion by an external force; and / or The clamping part is used to clamp onto the annular wall surrounding the container's outlet.

[0010] Optionally, the mounting part can be detachably installed on the pipe body, so as to be detachably installed and fixed at different positions on the pipe body at any part of the pipe body; or, The pipe body includes a telescopic section located between the mounting portion and the pump body, the length of which is adjustable; or... The mounting part is movably connected to the pipe body, and the mounting part can move relative to the pipe body to be installed at different positions on the pipe body.

[0011] Optionally, the grip includes an operating lever and an automatic control circuit. The operating lever can be operated by external force to control the opening and closing of the pipeline for transmitting liquid, and the automatic control circuit can automatically control the start and stop of the pump body.

[0012] Optionally, the gripping part further includes a handle, a base, and a control switch. The base is connected to the tube body through the handle. The operating lever is movably mounted on the base and is located on the same side of the base as the handle. The control switch is used to be triggered by an external force to control the operating state of the pump. The operating state includes a working state and a stopped state. The control switch is disposed on the base and near the handle; and / or, The grip also includes a liquid inlet tube for dispensing liquid. The liquid inlet tube is connected to the base on the side opposite to the handle. The automatic control circuit includes an electrically connected sensor and a control circuit. The control circuit is electrically connected to the pump body. The sensor is installed at the front end of the liquid inlet tube and is used to detect the amount of liquid dispensed. The control circuit controls the start and stop of the pump body based on the amount of liquid dispensed.

[0013] Secondly, embodiments of this application also provide a liquid adding device, which includes: Containers for storing liquids; and, The pump described above is installed in the container and is used to output the liquid inside the container.

[0014] This application provides a liquid extractor, in which the pump body extracts liquid, and the tubing serves as a liquid transport channel, guiding the liquid extracted by the pump body to the outside of the container. A grip is connected to the end of the tubing away from the pump body, providing a convenient holding point for the user. Furthermore, through its functional connection with the pump body, the user can directly or indirectly control the pump's start / stop and operating status, making operation more convenient. The liquid extractor also includes a mounting section, which is spaced apart from the pump body along the length of the tubing. The effective length of this section of tubing between the mounting section and the pump body is variable. This variable length allows the user to flexibly adjust the depth of the pump body within the container, ensuring that the pump reaches the target position, such as the bottom, regardless of the container's depth. This allows for better liquid extraction and avoids problems such as incomplete extraction or air intake caused by the pump body being suspended in the air. Furthermore, the mounting part can be detachably installed on the container, for example, by clamping or other means to temporarily and securely fix it to the container. This design provides an additional stable support point for the pump and works in conjunction with the grip to effectively prevent the pump body from deviating from its working position or colliding with the container during the pumping process due to the shaking of the tube. At the same time, the detachable connection of the mounting part to the container simplifies the assembly and disassembly process. When it is necessary to change the container or move the pumping position, the pump can be quickly removed from the current container, improving the convenience and efficiency of use.

[0015] A flexible cover is provided at the front end of the mounting part. The flexible cover surrounds the connecting part and is used to cover the opening of the container to prevent liquid from sloshing out and evaporating inside the container. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0018] Figure 1 This is a schematic diagram of the structure of the liquid extractor provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the liquid addition device provided in an embodiment of this application.

[0020] Figure 3 for Figure 1 An enlarged schematic diagram of part A of the pump shown.

[0021] Figure 4 for Figure 1 The diagram shows the structure of the mounting section in the liquid extractor.

[0022] Figure 5 for Figure 4 The shown is a cross-sectional view of the mounting section along the AA direction.

[0023] Figure 6 for Figure 1 An enlarged schematic diagram of part B of the pump shown.

[0024] Explanation of reference numerals in the attached figures: 1. Liquid pump; 11. Pump body; 12. Tube body; 121. Limiting groove; 122. Telescopic part; 13. Grip, 131. Operating lever, 132. Automatic control circuit, 1322. Sensor, 1324. Control circuit, 133. Control switch, 134. Handle, 135. Base, 136. Liquid filling tube; 14. Mounting part; 142. Connecting part; 1422. Sleeving part; 1423. Hollowed-out opening; 1424. Spring piece; 1425. Snap-fit ​​part; 144. Clamping part; 146. Flexible cover; 148. Handle. 2. Container, 21. Outlet, 22. Circular wall. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the liquid extractor provided in the embodiments of this application. Figure 2 This is a schematic diagram of the liquid adding device provided in an embodiment of this application. This application provides a liquid extractor 1, which includes a pump body 11, a tube body 12, a gripping part 13, and a mounting part 14. The pump body 11 is disposed within a container 2 to extract liquid from the container 2; the tube body 12 is connected to the pump body 11 to transfer liquid; the gripping part 13 is connected to the end of the tube body 12 away from the pump body 11, and is connected to and able to control the pump body 11; the mounting part 14 is mounted on the tube body 12, and the mounting part 14 and the pump body 11 are located at different positions on the tube body 12. The length of the tube body 12 between the mounting part 14 and the pump body 11 is variable, and the mounting part 14 is detachably mounted on the container 2.

[0028] In this embodiment, the pump body 11 extracts liquid, and the tube 12 serves as a liquid transfer channel, guiding the liquid extracted by the pump body 11 to the outside of the container 2. The grip 13 is connected to the end of the tube 12 furthest from the pump body 11, providing a convenient gripping point for the user. Furthermore, through its functional connection with the pump body 11, the user can directly or indirectly control the start / stop and operating status of the pump body 11, making operation more convenient. The pump 1 also includes a mounting part 14, which is spaced apart from the pump body 11 along the length of the tube 12. The effective length of this section of the tube 12 between the mounting part 14 and the pump body 11 is variable. This variable length allows the user to flexibly adjust the depth of the pump body 11 within the container 2 when inserting it. Regardless of the depth of the container 2, adjustment ensures that the pump body 11 reaches the target position, such as the bottom of the container 2, thereby better emptying the liquid and avoiding problems such as incomplete extraction or air intake caused by the pump body 11 being suspended in the air.

[0029] Furthermore, the mounting part 14 is movably mounted on the container 2, for example, by clamping or other means, and is temporarily and securely fixed to the opening, edge, or other suitable part of the container 2. This design provides an additional stable support point for the pump 1 and works in conjunction with the grip part 13 to effectively prevent the pump body 11 from deviating from its working position or colliding with the container 2 due to the shaking of the tube body 12 during the pumping process. At the same time, the detachable connection of the mounting part 14 to the container 2 simplifies the assembly and disassembly process. When it is necessary to change the container 2 or move the pumping position, the pump 1 can be quickly removed from the current container 2, improving the convenience and efficiency of use.

[0030] Therefore, the liquid extractor 1 provided in this application, based on the adjustability of the length of the tube 12 between the mounting part 14 and the pump body 11, achieves flexible adaptation to containers 2 of different depths, ensuring that the pump body 11 is always in an effective working position; at the same time, the mounting part 14 is detachably installed on the container 2, which not only achieves quick assembly and disassembly, but also provides stable support for the operation process; together with the grip part 13 that can directly control the pump body 11, the entire liquid extractor 1 is simple and efficient to operate, and stable and reliable in operation.

[0031] It is understandable that container 2 can be a barrel, box, canister, or container, etc. The liquid can be specified as needed; for example, the liquid can be a solvent such as gasoline, diesel, or kerosene. The liquid dispensing device can add liquid to the fuel tanks of equipment such as cars, motorcycles, yachts, and lawnmowers. For example, the liquid dispenser 1 can be a fuel nozzle, and container 2 can be an oil drum.

[0032] In some embodiments, the mounting part 14 is movably connected to the tube body 12, and the mounting part 14 is movable relative to the tube body 12 to be installed at different positions on the tube body 12.

[0033] In this embodiment, by setting the mounting part 14 and the tube body 12 as a movable connection, the mounting part 14 can move relative to the length direction of the tube body 12 and be fixed in different positions, thereby realizing flexible adjustment of the length of the tube body 12 between the mounting part 14 and the pump body 11. For example, the mounting part 14 is sleeved on the outer periphery of the tube body 12, and its inner wall forms a sliding fit structure with the outer wall of the tube body 12. To ensure stability during use, the mounting part 14 can be provided with a locking and unlocking mechanism. When adjustment is required, the user operates the locking and unlocking mechanism to unlock the mounting part 14, allowing it to slide along the axial direction of the tube body 12 to the target position, for example, so that the pump body 11 can just touch the bottom of the current container 2. After reaching the target position, the locking and unlocking mechanism is operated again to firmly fix the mounting part 14 to the tube body 12.

[0034] Therefore, when the mounting part 14 is in the unlocked state, it can slide freely relative to the tube body 12 for quick positioning; while when the mounting part 14 is in the locked state, the relative position between the mounting part 14 and the tube body 12 is fixed, thus ensuring stability during the liquid extraction process. Through this simple sliding, unlocking, and locking operation, the user can accurately and quickly adjust the working depth of the pump body 11 in the container 2 without the aid of tools, enabling the pump 1 to adapt to various sizes of containers 2 from shallow to deep. This not only improves the ease of operation and efficiency of the product, but also effectively prevents performance fluctuations or liquid leakage caused by the displacement of the mounting part 14 during operation through reliable locking, ensuring the stability and safety of the liquid extraction process.

[0035] Please combine Figure 3 , Figure 3 for Figure 1 An enlarged schematic diagram of part A of the liquid extractor shown. In some embodiments, the mounting part 14 includes a connecting part 142 and a clamping part 144 that are connected to each other. The connecting part 142 is movably connected to the tube body 12, and the clamping part 144 is clamped to the container 2.

[0036] In this embodiment, the connecting part 142 is movably connected to the tube body 12, allowing the entire mounting part 14 to move relative to the tube body 12 and be fixed in different positions, thereby adjusting the working depth of the pump body 11. The clamping part 144 is used to fix the pump body 11 to the container 2 by clamping. For example, the clamping part 144 can be a clamp structure that can open to fit the rim or edge of the container 2 of different thicknesses and generate sufficient clamping force when clamped, thereby stably anchoring the entire pump 1 to the container 2. This clamping and fixing method does not depend on the specific thread or size of the container 2 interface, thus having wide applicability, allowing the mounting part 14 to adapt to containers 2 of different diameters and shapes, without the need for special fixing joints for different containers 2, solving the installation problem caused by the different ports of the containers 2. Therefore, in this embodiment, through the cooperative work of the connecting part 142 and the clamping part 144 in the mounting part 14, while ensuring that the mounting part 14 as a whole is easy to adjust and position, it also provides a stable additional support point for the pumping process, independent of hand operation.

[0037] It should be noted that the clamping part 144 can also be replaced by other structures installed on the container 2. For example, the clamping part 144 can also be replaced by a suction cup adsorbed on the surface of the container 2, a magnetic structure adsorbed on the container 2 (for example, a magnet is provided on at least one of the clamping part 144 and the container 2, and a magnetic component or magnetic conductive material is provided on the other), or a snap-fit ​​structure to achieve detachable movable installation. All these methods can achieve the purpose of conveniently fixing the mounting part 14 to the container 2.

[0038] In some embodiments, the clamping part 144 is used to clamp onto the annular wall 22 surrounding the outlet 21 of the container 2.

[0039] In this embodiment, the clamping part 144 does not rely on a specific structure of the container 2 outlet 21, such as a specific thread or protrusion. Instead, it directly and firmly attaches to the annular wall 22 around the opening of the container 2 through its own clamping force. This clamping method avoids the matching problems caused by the wide variety of container 2 interface specifications. Regardless of the size or shape of the container 2 opening, as long as its annular wall 22 can be effectively clamped by the clamping part 144, a stable and reliable fixing point can be provided for the entire pump 1. Users do not need to find or switch any special connectors. They only need to open the clamping part 144 like a clamp and clamp it to the edge of the container 2 opening to complete the quick installation. This clamping method of the annular wall 22 not only ensures the stability of the installation part 14 and prevents the pump body 11 from accidentally shaking or falling off during the pumping process, but also makes it compatible with most common containers 2, thereby improving the versatility and ease of operation of the pump 1 and enhancing the user experience.

[0040] In some embodiments, the connecting portion 142 is sleeved on the tube body 12 and can slide relative to the tube body 12. The connecting portion 142 has at least one spring piece 1424, which elastically abuts against the tube body 12 to engage with the tube body 12.

[0041] For example, the connecting portion 142 includes a sleeve portion 1422 and a spring piece 1424 disposed thereon. The sleeve portion 1422 is directly sleeved onto the outer periphery of the tube body 12, forming a basis for sliding engagement with the tube body 12. The sleeve portion 1422 has a cutout 1423, and the spring piece 1424 is disposed within the space defined by this cutout 1423, with one end of the spring piece 1424 connected to the body of the sleeve portion 1422.

[0042] Correspondingly, please refer to Figure 4 and Figure 5 , Figure 4 for Figure 1 The diagram shows the structure of the mounting section in the liquid extractor. Figure 5 for Figure 4 The diagram shows a cross-sectional view of the mounting portion along the AA direction. The tube body 12 is provided with a plurality of limiting grooves 121 along its length direction. The other end of the spring piece 1424 protrudes with a snap-fit ​​portion 1425 facing one side of the tube body 12. The snap-fit ​​portion 1425 can be snapped into different grooves so that the mounting portion 14 is limited to different positions of the tube body 12.

[0043] In this embodiment, the sleeve portion 1422 is sleeved on the outer periphery of the tube body 12, forming a basis for sliding cooperation with the tube body 12. The sleeve portion 1422 has a hollow opening 1423, and the spring piece 1424 is disposed in the hollow opening 1423. Since one end of the spring piece 1424 is fixedly connected to the sleeve portion 1422, while the other end is a free end, the spring piece 1424 can undergo elastic deformation with the fixed end as the fulcrum when subjected to force, thereby realizing the switching between the locking and unlocking states with the outer wall of the tube body 12.

[0044] Specifically, when the mounting part 14 slides along the tube body 12, the snap-fit ​​part 1425 on the spring piece 1424 can slide sequentially across each limiting groove 121 on the surface of the tube body 12 under its elastic action. When the mounting part 14 moves to the target position, the snap-fit ​​part 1425 will accurately snap into the limiting groove 121 corresponding to that position under the restoring force of the spring piece 1424 itself. By snapping the snap-fit ​​part 1425 into different grooves, the mounting part 14 can be stably limited to different positions in the axial direction of the tube body 12, so as to achieve accurate and reliable positioning of the mounting package and effectively prevent slow sliding or accidental displacement that may occur during the liquid extraction process.

[0045] For example, during operation, the user slides the mounting part 14 relative to the tube body 12 using external force. The spring piece 1424 of the mounting part 14 can deform, causing the locking part 1425 to disengage from the currently engaged limiting groove 121 and slide relative to the tube body 12. After the user removes the external force, the spring piece 1424, by its own elastic restoring force, pushes the locking part 1425 into the limiting groove 121 corresponding to the target position, so that the connecting part 142 and the tube body 12 are mechanically interlocked at that position, and the connecting part 142 is firmly fixed.

[0046] In another example, during operation, when the user applies external force to the spring 1424, forcing it to undergo elastic deformation, the locking part 1425 disengages from the currently engaged limiting groove 121. At this time, the connecting part 142 is in an unlocked state, and the user can easily slide the entire mounting part 14 along the axial direction of the tube 12 until the target position is reached. Once the mounting part 14 has been slid to the target position (e.g., so that the pump body 11 just touches the bottom of the container 2), the user only needs to remove the external force on the spring 1424. The spring 1424, by its own elastic restoring force, pushes the locking part 1425 into the limiting groove 121 corresponding to the target position, so that the connecting part 142 and the tube 12 are mechanically interlocked at that position, and the connecting part 142 is firmly fixed.

[0047] For example, the sleeve portion 1422 and the spring piece 1424 of the connecting portion 142 can be manufactured as a single component, for example, by injection molding, which simplifies the manufacturing process, reduces the number of parts, and lowers assembly complexity and cost. Meanwhile, the design of the cutout 1423 ensures that the spring piece 1424 has the necessary space for movement and elastic travel, while avoiding structural instability or wear problems that may arise from additional parts, resulting in better durability. Furthermore, the sleeve portion 1422 and the spring piece 1424 can also be manufactured separately; this embodiment does not limit this.

[0048] In some embodiments, the mounting portion 14 further includes a flexible cover 146 connected to the connecting portion 142. The flexible cover 146 is disposed around the connecting portion 142 and is used to cover the opening of the container 2.

[0049] In this embodiment, the main function of the flexible cover 146 is to effectively shield and protect the opening of the container 2. When the mounting part 14 is fixed to the container 2 via its connecting part 142 and clamping part 144, the flexible cover 146 can simultaneously cover the opening of the container 2, effectively preventing external dust, debris, or other contaminants from falling into the container 2 through the open opening, thereby keeping the liquid inside the container 2 clean and avoiding potential oil circuit blockage or equipment damage due to impurities. The addition of the flexible cover 146 ensures that the opening of the container 2 is always protected during the liquid extraction operation of the pump 1. This is particularly important for the pump 1 used in complex environments such as outdoors and construction sites, enhancing the safety and hygiene of the pump 1.

[0050] In some embodiments, the mounting portion 14 further includes a handle 148 connected to the connecting portion 142, the handle 148 being used to slide the mounting portion 14 by an external force.

[0051] In this embodiment, the handle 148 provides the user with a clear and comfortable point of force application. When the position of the mounting part 14 needs to be adjusted, the user does not need to forcefully pinch the connecting part 142 or the sleeve part 1422, but can naturally hold or pinch the handle 148 to operate. The design of the handle 148 makes the user's grip more stable, the force application more direct, and the control more precise when performing a series of adjustment actions such as unlocking, sliding, and locking. This makes the entire device easier and more efficient in adapting to different container depths 2, helping to achieve the convenient feature of the liquid extractor 1 that requires no tools and can be operated with one hand, thus improving the ease of operation and user experience.

[0052] In some embodiments, the mounting part 14 is detachably mounted on the tube body 12 so that it can be detachably mounted and fixed at different positions on the tube body 12 at any part of the tube body 12.

[0053] In this embodiment, the mounting part 14 is configured to be completely detachably mounted on the tube body 12. Exemplarily, the mounting part 14 can be separated from and reattached to the tube body 12 via a specific connection structure (e.g., snap-fit, tight fit, binding, etc.). When the user needs to adjust the effective working depth of the pump body 11 in the container 2, the entire mounting part 14 can be removed from the tube body 12 first, and then, depending on the target depth, it can be reinstalled at another suitable position on the tube body 12, closer to or further away from the pump body 11. Finally, the mounting part 14 is fixed to the container 2. This fully detachable and reinstallable adjustment method offers a high degree of adjustment freedom, allowing the user to make large-distance, non-continuous positional changes within the total length of the tube body 12. The fully detachable design also allows the mounting part 14 and that section of the tube body 12 to be completely separated, which not only greatly facilitates cleaning, maintenance, or replacement of individual components but may also simplify the packaging and transportation of the pump 1.

[0054] In some embodiments, the pipe body 12 includes a telescopic portion 122 located between the mounting portion 14 and the pump body 11, and the length of the telescopic portion 122 is adjustable.

[0055] In this embodiment, the telescopic portion 122 is a specific area in the tube body 12 that has telescopic or folding characteristics. Exemplary implementations may include, but are not limited to, a corrugated tube structure, or a telescopic tube structure consisting of multiple layers of tube bodies 12 nested together and capable of relative sliding.

[0056] By adjusting the length of the telescopic part 122, the effective pipe length between the mounting part 14 and the pump body 11 can be directly changed, thereby achieving precise control of the working depth of the pump body 11 within the container 2. For example, when dealing with a deeper container 2, the telescopic part 122 can be stretched to a longer length; when used for a shallower container 2, it can be compressed to a shorter length.

[0057] In this embodiment, since the adjustment function is directly built into the tube body 12 itself, it does not rely on the sliding and locking mechanism of the mounting part 14 on the tube body 12, or the removal of the mounting part 14 from the tube body 12. The user can directly operate the telescopic part 122 to complete the depth adjustment, which is convenient. The telescopic part 122 (such as a corrugated pipe) itself usually has good flexibility, which also enhances the adaptability of the tube body 12 in complex usage environments to a certain extent. Therefore, this embodiment provides a technical solution for directly adjusting the length of the tube body 12, enriching the ways in which the liquid extractor 1 can adapt to containers 2 of different depths.

[0058] It should be noted that the type of the tube body 12 can be set as needed. For example, the tube body 12 can be a corrugated hose, a smooth hose (at least one of the inner and outer sides of the tube body is a smooth structure), a transparent hose, a smooth and transparent tube body, or a rigid tube.

[0059] Please combine Figure 6 , Figure 6 for Figure 1 The diagram shows an enlarged view of part B in the liquid pump. In some embodiments, the grip 13 includes an operating lever 131 and an automatic control circuit 132. The operating lever 131 can be operated by external force to control the opening and closing of the liquid transmission pipeline, and the automatic control circuit 132 can automatically control the start and stop of the pump body 11.

[0060] In this embodiment, the operating lever 131 is a mechanical control component that can respond to external forces applied by the user (such as pressing, pulling, etc.) to produce displacement or state changes. This mechanical action is transmitted or converted into a control signal, thereby controlling the opening and closing of the liquid transmission pipeline, i.e., controlling the pipeline to open or close, or directly controlling the start and stop of the pump body 11, providing the user with the most direct manual operation means. The operating lever has a pipeline connected to the pipe body, which also transmits liquid, and the opening or closing of the pipeline can be controlled by the operating lever.

[0061] In addition, the grip 13 also integrates an automatic control circuit 132, which can automatically monitor specific conditions during the liquid extraction process (such as sensing that the container 2 is full of liquid) and automatically issue a command when the preset conditions are met to control the start and stop of the pump body 11, without requiring or reducing manual intervention.

[0062] By integrating the operating lever 131 and the automatic control circuit 132 into the grip 13, both manual and automatic control capabilities are achieved, allowing users to flexibly choose the control mode during operation: they can use the operating lever 131 for active on / off control to address temporary interruptions or precise flow control needs; or they can rely on the automatic control circuit 132 to achieve automated "stop when full" operation to prevent liquid spillage. This combination of manual and automatic control greatly enhances the convenience, flexibility, and safety of the pump 1, simultaneously meeting the operating habits of different users and the needs of different application scenarios. It should be noted that the grip 13 may also include only the operating lever 131 or the automatic control circuit 132; this embodiment does not limit this.

[0063] In some embodiments, the grip 13 further includes a control switch 133, which is triggered by an external force to control the operating state of the pump, including a working state and a stopped state.

[0064] In this embodiment, the control switch 133 can respond to external triggering operations (such as pressing, flicking, etc.) by the user, directly controlling the working and stopping states of the pump, thus improving operational safety and direct control. For example, when the user triggers the switch to the "working state," the entire pump 1 is powered, putting it into operation mode; while when triggered to the "stop state," the main power supply to the pump 1 is immediately cut off, causing it to stop working.

[0065] The start / stop control of the pump is integrated into the grip 13, allowing the user to easily access and operate the control switch 133 while holding the device. This is beneficial for dealing with emergencies. When it is necessary to stop the pumping operation immediately, the user does not need to look for a switch in another location and can directly and quickly cut off the power on the grip 13, shortening the emergency response time and enhancing the reliability of the pump 1 under different operating conditions.

[0066] In some embodiments, the grip portion 13 further includes a handle 134 and a base 135. The base 135 is connected to the tube body 12 via the handle 134. The operating lever 131 is movably mounted on the base 135 and is located on the same side of the base 135 as the handle 134. The control switch 133 is disposed on the base 135 and is located near the handle 134.

[0067] This embodiment achieves a clear and convenient control center within the limited space of the grip 13. Specifically, the two most critical manual control elements, the lever 131 and the control switch 133, are centrally located in the operating area near the handle 134. This allows the user to easily access and operate these two components when performing refueling operations with one hand on the handle 134. Whether it's precisely controlling the flow rate with the lever 131 or quickly triggering the control switch 133 to cut off the power in an emergency, it can be done quickly without changing the grip posture or using the other hand. It is understood that the handle 134 and the base 135 are provided with channels for liquid transfer, which communicate with the tube 12.

[0068] In some embodiments, the grip portion 13 further includes a liquid inlet tube 136 for discharging liquid. The liquid inlet tube 136 is connected to the side of the base 135 away from the handle 134. The automatic control circuit 132 includes a sensor 1322 and a control circuit 1324 that are electrically connected. The control circuit 1324 is electrically connected to the pump body 11. The sensor 1322 is installed at the front end of the liquid inlet tube 136 and is used to detect the amount of liquid being discharged. The control circuit 1324 controls the start and stop of the pump body 11 according to the amount of liquid.

[0069] In this embodiment, by mounting the sensor 1322 on the liquid filling pipe 136 and placing it at the front end, i.e., the sensor 1322 is located at the end of the liquid filling pipe 136 where the liquid is output, the automatic control circuit 132 can directly and in real time acquire the status information of the output liquid. The control circuit 1324 can automatically determine and control the operation of the pump body 11 in various ways based on the liquid volume parameters detected by the sensor 1322: for example, calculating the total output volume by accumulating the flow rate, indirectly determining the liquid level height of the target container 2 by monitoring the liquid level at the outlet 21 of the liquid filling pipe 136, or triggering the sensor to operate when the liquid level touches the sensor surface. When the control circuit 1324 determines that the liquid is full based on the signal from the sensor 1322, it will automatically cut off the power to the pump body 11 and stop the pumping operation, improving the safety and convenience of operation and effectively avoiding waste and safety hazards caused by liquid overflow. Exemplarily, the automatic control circuit 132 may also include a processing unit and corresponding control logic, etc., but this embodiment does not limit this.

[0070] The liquid extractor 1 may include one or more power supply structures. For example, the liquid extractor 1 may include at least one of battery power, TYPE-C interface power, and DC12V adapter interface power, wherein the battery can be a dry cell battery or a rechargeable battery. To prevent users from using both the TYPE-C and DC12V adapter interfaces simultaneously and to improve product safety, a swing plate is provided at each of the two ports. The swing plate can move relative to the ports, exposing one interface and blocking the other interface. That is, the swing plate can ensure that only one port is exposed at a time, and when using one port, the swing plate can block the other port, thus providing protection.

[0071] Please combine Figures 1 to 6 This application also provides a liquid adding device, which includes a container 2 and a liquid pump 1. The container 2 is used to store liquid; the liquid pump 1 is installed on the container 2 and is used to output the liquid in the container 2. The liquid pump 1 can be the liquid pump 1 in any of the above embodiments, which will not be described in detail here.

[0072] In some embodiments, the container 2 is provided with an outlet 21 and an annular wall 22 that protrudes around the outlet 21, and the mounting portion 14 of the pump 1 is clamped in the annular wall 22.

[0073] In this embodiment, the mounting part 14 does not rely on a specific structure of the container 2 outlet 21, such as a specific thread or protrusion. Instead, it directly and firmly attaches to the annular wall 22 around the opening of the container 2 through its own clamping force. This clamping method avoids the matching problems caused by the wide variety of container 2 interface specifications. Regardless of the size or shape of the container 2 opening, as long as its annular wall 22 can be effectively clamped by the clamping part 144, a stable and reliable fixing point can be provided for the entire pump 1. Users do not need to find or switch any special connectors. They only need to open the clamping part 144 like a clamp and clamp it to the edge of the container 2 opening to complete the quick installation. This clamping method of the annular wall 22 not only ensures the stability of the mounting part 14 and prevents the pump body 11 from accidentally shaking or falling off during the pumping process, but also makes it compatible with most common containers 2, thereby improving the versatility and ease of operation of the pump 1 and enhancing the user experience.

[0074] It is understandable that container 2 can be a barrel, box, canister, or container, etc. The liquid can be specified as needed; for example, the liquid can be a solvent such as gasoline, diesel, or kerosene. The liquid dispensing device can add the liquid to the fuel tank of equipment such as cars, motorcycles, yachts, and lawnmowers. The liquid can also be a solvent such as urea, and the liquid dispensing device can add urea to container 2 of agricultural equipment. For example, the liquid extractor 1 can be a fuel nozzle, container 2 can be an oil drum, and the liquid dispensing device can be a fuel container.

[0075] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0076] The above provides a detailed description of the liquid extractor and liquid addition device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A liquid pump, characterized in that, include: A pump body, used to be installed inside a container to draw liquid from the container; A pipe body, connected to the pump body, for transporting liquid; A grip, connected to the end of the tube away from the pump body, the grip being connected to the pump body and capable of controlling the pump body; and... The mounting part is installed on the pipe body. The mounting part and the pump body are located at different positions on the pipe body. The length of the pipe body between the mounting part and the pump body is variable. The mounting part is used for detachable installation on the container.

2. The liquid extractor according to claim 1, characterized in that, The mounting part includes a connecting part and a clamping part that are connected to each other. The connecting part is movably connected to the tube body, and the clamping part is clamped to the container.

3. The liquid extractor according to claim 2, characterized in that, The connecting part is sleeved on the tube body and can slide relative to the tube body. The connecting part has at least one spring piece, which elastically abuts against the tube body to engage with the tube body.

4. The liquid extractor according to claim 3, characterized in that, The connecting part includes a sleeve and a spring piece. The sleeve is sleeved on the tube body and has a hollow opening. The spring piece is disposed in the hollow opening and one end of the spring piece is connected to the sleeve.

5. The liquid extractor according to claim 4, characterized in that, The tube body is provided with multiple limiting grooves along its length direction, and the other end of the spring sheet is provided with a snap-fit ​​part protruding towards one side of the tube body. The snap-fit ​​part can be snapped into different limiting grooves so that the mounting part is limited to different positions of the tube body.

6. The liquid extractor according to claim 3, characterized in that, The mounting portion further includes a flexible cover connected to the connecting portion, the flexible cover being disposed around the connecting portion, the flexible cover being used to cover the opening of the container; and / or, The mounting portion further includes a handle connected to the connecting portion, the handle being used to slide the mounting portion by an external force; and / or The clamping part is used to clamp onto the annular wall surrounding the container's outlet.

7. The liquid extractor according to claim 1, characterized in that, The mounting part is detachably installed on the pipe body, so that it can be detachably installed and fixed at different positions on the pipe body; or... The pipe body includes a telescopic section located between the mounting portion and the pump body, the length of which is adjustable; or... The mounting part is movably connected to the pipe body, and the mounting part can move relative to the pipe body to be installed at different positions on the pipe body.

8. The liquid extractor according to claim 1, characterized in that, The grip includes an operating lever and an automatic control circuit. The operating lever can be operated by external force to control the opening and closing of the pipe for transmitting liquid, and the automatic control circuit can automatically control the start and stop of the pump body.

9. The liquid extractor according to claim 8, characterized in that, The grip portion also includes a handle, a base, and a control switch. The base is connected to the tube body via the handle. The operating lever is movably mounted on the base and is located on the same side of the base as the handle. The control switch is used to be triggered by an external force to control the operating state of the pump of the pumping device. The operating state includes a working state and a stopped state. The control switch is disposed on the base and near the handle; and / or, The grip also includes a liquid inlet tube for dispensing liquid. The liquid inlet tube is connected to the base on the side opposite to the handle. The automatic control circuit includes an electrically connected sensor and a control circuit. The control circuit is electrically connected to the pump body. The sensor is installed at the front end of the liquid inlet tube and is used to detect the amount of liquid dispensed. The control circuit controls the start and stop of the pump body based on the amount of liquid dispensed.

10. A liquid dispensing device, characterized in that, include: Containers used to store liquids; as well as, The pump as described in any one of claims 1-9 is installed in the container and used to output liquid from the container.

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