Variable height open gravity infusion device and method of positioning an infusion

Abstract

The application discloses a variable-height open gravity infusion device and a positioning infusion method thereof. The device comprises a lifting structure and an open gravity infusion mechanism. The open gravity infusion mechanism comprises a suspension flow guide structure and a reversing liquid discharge tank. The suspension flow guide structure comprises a plurality of flow guides, a flexible suspension member and a sway-preventing guide. Adjacent flow guides are not in pressure-tight sealed connection and form intervals for liquid to freely fall under gravity in an unfolded state. The flexible suspension member limits the unfolding interval of each flow guide, and the sway-preventing guide limits the lateral swing of the flow guide. When the lifting structure drives the reversing liquid discharge tank to move, the reversing liquid discharge tank supports or releases the flow guides in sequence, so that the flow guides are switched between a telescopic folding state and an interval unfolding state, the length of a medium conveying channel of the open gravity infusion mechanism is changed, and liquid can be selectively conveyed from one fixed liquid source to multiple target liquid discharge positions.

Description

Technical Field

[0001] This invention belongs to the field of liquid gravity transport and new energy battery safety protection technology, and particularly relates to a variable height open gravity transport device and its positioning transport method between a fixed liquid source and multiple target discharge positions at different heights. Background Technology

[0002] In the production, assembly, storage, and maintenance environments of new energy batteries, there are often situations where numerous new energy batteries are stored simultaneously. This is especially true in new energy battery repair areas, where batteries of different brands and capacities may be stored together. Storage is typically multi-level, and in such scenarios, it is usually necessary to transport fire-fighting or cooling fluids from a fixed liquid source at the top to target drainage locations at different heights. The solutions used for this transport include installing fixed branch pipes and control valves at each level, or using flexible hoses that move with the outlet. The solution using fixed branch pipes and control valves results in a large number of pipes and valves, leading to numerous maintenance points. The solution using flexible hoses that move with the outlet is prone to hose bending, swaying, aging, and fluid-laden movement risks during long periods of standby and repeated raising and lowering.

[0003] In the field of battery-powered fire suppression, technologies such as top-mounted liquid storage tanks, fixed piping networks, tiered nozzles, and mobile nozzles have emerged. However, when only a mobile outlet is installed, a follow-up hose, long pipeline, or layered fixed branches are still required between the fixed liquid source and the mobile outlet. Therefore, a structure is needed that can complete positioning when the liquid source is closed, keep the main components stationary during drainage, and change the effective liquid delivery height through lightweight open-type fluid guides. Summary of the Invention

[0004] This invention provides a variable-height open gravity infusion device, which enables a fixed liquid source to selectively deliver liquid to multiple target drainage locations at different heights without setting up complete fixed pipelines and control valves for each target level; at the same time, it reduces repeated bending and liquid movement of the follow-up pressure hose, and reduces the weight, space occupation and jamming risk of the variable-height infusion structure.

[0005] The technical solution adopted in this invention is as follows: A variable-height open-type gravity infusion device, characterized in that it includes a lifting structure and an open-type gravity infusion mechanism. The open-type gravity infusion mechanism includes a suspended flow guiding structure and a reversing discharge hopper. The suspended flow guiding structure includes multiple flow guides, a flexible suspension component, and an anti-sway guide component. The multiple flow guides are fixed sequentially and at intervals along the vertical direction on the flexible suspension component, and the flexible suspension component limits the maximum deployment distance of the multiple flow guides. Adjacent flow guides do not form a pressure-bearing sealed connection and form a gap for free liquid fall in the spaced-out deployment state. Each flow guide has a through flow guiding cavity with an upward-facing liquid inlet and a downward-facing liquid outlet. Each flow guide slides in cooperation with the anti-sway guide component, and the anti-sway guide component is set in a direction parallel to the lifting direction of the lifting structure. The reversing discharge hopper is located below the end guide fluid. The reversing discharge hopper is fixedly connected to the lifting part of the lifting structure. When the lifting structure moves the reversing discharge hopper between each target discharge position, the reversing discharge hopper sequentially supports or releases at least part of the guide fluid, so that the guide fluid switches between a stacked and retracted state and an intermittently unfolded state, thereby changing the length of the medium delivery channel of the open gravity infusion mechanism.

[0006] The suspended flow guide structure is mainly used to receive liquid discharged from a fixed liquid source and transfer it to the reversing discharge hopper for directional discharge. The lifting structure raises and lowers the reversing discharge hopper, which can change the length of the medium conveying channel to meet the filling needs of different target discharge locations. Furthermore, there is no need to form a continuous closed pressurized pipeline between the solid liquid source and the reversing discharge hopper; the liquid is transferred step by step by gravity only when the flow guide is deployed.

[0007] As a preferred embodiment of the present invention, between adjacent guide fluids, the outlet of the upstream guide fluid is located within the receiving projection range of the inlet of the downstream guide fluid; and the inlet area of ​​the downstream guide fluid is larger than the outlet area of ​​the upstream guide fluid; the guide fluids together form an adjustable length medium conveying channel, which is open and there is no risk of repeated bending of the hose.

[0008] In a preferred embodiment of the present invention, the guiding fluid is a receiving hopper that is larger at the top and smaller at the bottom, and adjacent receiving hoppers can be stacked on top of each other. The guiding cavity of the receiving hopper is also larger at the top and smaller at the bottom, allowing adjacent receiving hoppers to be stacked. The receiving port area of ​​the downstream receiving hopper is larger than the outlet area of ​​the upstream receiving hopper, allowing liquid to fall freely from the upstream guiding fluid into the downstream guiding fluid by gravity, thus realizing the transfer of liquid.

[0009] In a preferred embodiment of the present invention, the liquid receiving hopper has symmetrically bent outer edges on opposite sides of the liquid receiving port. Each bent outer edge on the same side is fixed at intervals to the same flexible suspension member. The flexible suspension member is provided with positioning supports corresponding to each liquid guide at intervals. Each bent outer edge on the same side is connected to the same anti-sway guide and can slide along the anti-sway guide. The anti-sway guides on both sides of the liquid receiving hopper restrict the suspended liquid receiving hopper, preventing lateral swaying during the stacking process and during liquid transfer. The anti-sway guide can be a wire rope, guide rod, or guide rail. The bent outer edges serve to fix the hopper to the flexible suspension member, cooperate with the anti-sway guide to prevent swaying, and limit the stacking depth of adjacent liquid guides to prevent complete embedding and wedging. The positioning supports are used to fix the suspended liquid receiving hopper, creating an open gap between the liquid receiving hoppers.

[0010] In a preferred embodiment of the present invention, the liquid receiving hopper is further provided with a baffle at the liquid receiving port, the baffle being adjacent to the outer edge of the bend. The baffle and the outer edge of the bend work together to double limit the overlapping depth of the guiding fluid, preventing complete embedding and wedging. Both the baffle and the outer edge of the bend adopt an upwardly inclined edge structure.

[0011] As a preferred embodiment of the present invention, a positioning hole and an anti-sway guide hole are provided on the outer edge of the bend; the positioning support is located on the flexible suspension member below the positioning hole, and the anti-sway guide extends through the anti-sway guide hole.

[0012] In a preferred embodiment of the present invention, the anti-sway guide hole has an open outer side, and the liquid receiving bucket is secured to the anti-sway guide member through the anti-sway guide hole. The open anti-sway guide hole facilitates assembly.

[0013] In a preferred embodiment of the present invention, the reversing discharge hopper has an upwardly opening liquid receiving chamber and a directional discharge port. The discharge direction of the directional discharge port intersects with the cavity direction of the liquid receiving chamber, and the liquid receiving chamber, located away from the directional discharge port, is fixedly connected to the lifting part of the lifting structure. The liquid receiving chamber can support at least one stacked and retracted fluid guide, and a flow guide transition section is provided between the liquid receiving chamber and the directional discharge port. The liquid receiving chamber, on the one hand, receives the liquid transported from above as comprehensively as possible, and on the other hand, facilitates the stacking of the upper liquid receiving hoppers, allowing the directional discharge port to change the transport direction of the liquid, discharging it to the target discharge position. Furthermore, the flow guide transition section is arc-shaped or inclined, preferably arc-shaped, to reduce the impact of the liquid on the reversing discharge hopper.

[0014] As a preferred embodiment of the present invention, the reversing discharge hopper is also slidably connected to the lifting guide structure; the lifting guide structure includes a slider and a guide rail, and the guide rail is fixedly provided on both sides of the reversing discharge hopper. The direction of the guide rail is parallel to the moving direction of the lifting structure. The slider is fixed on both sides of the reversing discharge hopper, and the slider is slidably connected to the guide rail; the lifting guide structure further ensures the linearity of the movement of the receiving hopper and the reversing discharge hopper and the stability during discharge.

[0015] As a preferred embodiment of the present invention, the lifting structure may be at least one of chain drive, belt drive, screw and nut drive or linear actuator.

[0016] As a preferred embodiment of the present invention, a position detection element is provided for determining whether the reversing discharge hopper has reached the target discharge position; the position detection element detects whether the reversing discharge hopper has reached the target discharge position.

[0017] In a preferred embodiment of the present invention, a fixed liquid source is provided above the suspended guide structure. The discharge outlet of the fixed liquid source is equipped with a discharge control mechanism, and the discharge outlet of the fixed liquid source corresponds to the upstream guide fluid inlet. When the reversing discharge hopper is at the target discharge position, the liquid discharged from the discharge outlet of the fixed liquid source is transferred to the reversing discharge hopper via the guide fluid and discharged to the target discharge position. The discharge control mechanism controls the discharge of liquid from the fixed liquid source, and the discharge control mechanism can be linked with the position detection element.

[0018] This invention also provides a positioning infusion method using the aforementioned variable-height open gravity infusion device. The method employs dry positioning and fixed-point infusion. First, the drain outlet of the fixed liquid source is kept open and closed. Based on the target drain position, a lifting structure is controlled to move the reversing drain bucket, causing at least some of the guide fluids to sequentially overlap or unfold, bringing the reversing drain bucket to the target drain position. After confirming the target drain position is in place, the drain outlet of the fixed liquid source is opened. The liquid discharged from the drain outlet of the fixed liquid source passes sequentially through the unfolded guide fluids by gravity and is discharged into the target drain position by the reversing drain bucket. During the draining process, the positions of the reversing drain bucket and the guide fluids remain unchanged.

[0019] As a preferred embodiment of the present invention, when the reversing drain hopper is not in place, the liquid receiving container at the target drain position is missing, the fixed liquid source has insufficient liquid storage, the lifting structure is faulty, or the position detection signal of the reversing drain hopper is conflicted, the automatic opening of the drain outlet of the fixed liquid source and the output of an alarm are prohibited.

[0020] This invention uses a vertically connected liquid receiving hopper as a medium transport channel to transfer the medium to a reversing discharge hopper for reversing discharge. The liquid receiving hopper is wider at the top and narrower at the bottom, and the liquid receiving cavity of the reversing discharge hopper provides space for stacking the liquid receiving hoppers.

[0021] Moreover, each liquid receiving hopper is suspended and fixed by two flexible suspension components. The flexible suspension components can be folded up and extended, which limits the unfolding distance of each liquid receiving hopper. The reversing discharge hopper, driven by the lifting structure, stacks the liquid receiving hoppers suspended in the same vertical plane, changes the length of the medium conveying channel, and then discharges the liquid to different target discharge positions through the reversing discharge hopper, which facilitates selective cooling or immersion in multi-layer battery trays.

[0022] Furthermore, this invention uses discontinuous liquid receiving hoppers as medium transport channels, eliminating the need to form continuous pressurized pipelines. A fixed liquid source can cover multiple target drainage positions at different heights. When each liquid receiving hopper is deployed, it utilizes the gravity of the liquid itself to achieve step-by-step transfer, reducing the amount of consumable materials used in the medium transport channel. It also allows for the use of locally sourced materials, reducing costs and the weight of the liquid receiving hoppers. Moreover, when the liquid receiving hoppers are folded up, they are stacked on top of each other, occupying little space.

[0023] The anti-sway guide restricts the lateral swaying of the guide fluid, the baffle and the bent outer edge reduce the probability of overlapping and jamming, and the reversing discharge hopper completes the movement of the target discharge position in the state of fixed liquid source closed. During discharge, the receiving hopper and the reversing discharge hopper are stationary, reducing the risk of liquid movement. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 for Figure 1 Enlarged view of a portion of region A in the middle.

[0027] Figure 3 for Figure 1 Enlarged view of a portion of region B in the middle.

[0028] Figure 4 for Figure 1 Enlarged view of a portion of region C.

[0029] Figure 5 This is a side view of the present invention.

[0030] Figure 6 This is a schematic diagram of the liquid receiving funnel of the present invention.

[0031] Figure 7 for Figure 6 Enlarged view of a portion of region D.

[0032] Figure 8 This is a three-dimensional structural diagram of the suspension guide structure of the present invention. Figure 1 .

[0033] Figure 9 This is a three-dimensional structural diagram of the suspension guide structure of the present invention. Figure 2 .

[0034] Figure 10 This is a schematic diagram of the three-dimensional structure of the reversing discharge hopper of the present invention. Figure 1 .

[0035] Figure 11 This is a schematic diagram of the three-dimensional structure of the reversing discharge hopper of the present invention. Figure 2 .

[0036] Figure 12 This is a schematic diagram of the assembly of the device of the present invention applied to a multi-layer battery storage rack. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides an embodiment of a variable-height open-type gravity infusion device, such as... Figure 1-5 As shown, it includes a lifting structure and an open gravity infusion mechanism. The open gravity infusion mechanism includes a suspension guide structure and a reversing drain hopper 4, which is located below the suspension guide structure. Figure 6-9 As shown, the suspended flow guiding structure includes multiple flow guides 1, flexible suspension components 2, and anti-sway guide components 3. In this embodiment, six liquid receiving hoppers are used as an example. The anti-sway guide components 3 can be steel wire ropes, guide rods, or guide rails. In this embodiment, steel wire ropes are used, and the steel wire ropes are fixed vertically.

[0039] Multiple guides 1 are fixed sequentially and at intervals along the vertical direction on the flexible suspension component 2, and the flexible suspension component 2 limits the maximum spread distance of the multiple guides 1; no pressure-bearing sealing connection is formed between adjacent guides 1, and no flange, hose or sealing ring is required to form a pressure-bearing connection.

[0040] When adjacent guide fluids 1 are in an open state, they form a gap where liquid can fall freely. The outlet of the upstream guide fluid 1 is located within the receiving projection range of the inlet of the downstream guide fluid 1. Therefore, liquid can fall freely from the upstream guide fluid into the downstream guide fluid by gravity.

[0041] The various guide fluids 1 together, as well as the downstream guide fluid 1 and the reversing discharge hopper 4, form a media transport channel with adjustable length.

[0042] like Figure 6 and 7As shown, the guide fluid 1 is a liquid receiving hopper that is larger at the top and smaller at the bottom, and the liquid receiving hopper is provided with a guide cavity 11 that runs vertically through it. The guide cavity 11 has an upward-facing liquid receiving port and a downward-facing liquid outlet. Adjacent liquid receiving hoppers can be stacked on top of each other, and the liquid receiving port area of ​​the downstream liquid receiving hopper is larger than the liquid outlet area of ​​the upstream liquid receiving hopper. In this embodiment, the liquid receiving hopper is a trapezoidal hopper that is larger at the top and smaller at the bottom. It can also be a conical hopper, a rectangular hopper, an arc-shaped groove, or other structures that can be stacked on top of each other.

[0043] The uppermost receiving hopper receives the liquid discharged from the fixed liquid source, and the fixed liquid source is located above the uppermost receiving hopper. The gap between the uppermost receiving hopper and the outlet of the fixed liquid source also serves as part of the medium transport channel. The liquid can be water, fire-fighting liquid, coolant, or other liquids that can be transported by gravity. The uppermost receiving hopper falls freely into the reversing discharge hopper 4 step by step by the gravity of the liquid.

[0044] The liquid receiving hopper has symmetrically arranged bent outer edges 12 on both sides of the liquid receiving port. Each bent outer edge 12 on the same side is fixed at intervals on the same flexible suspension member 2. The flexible suspension member 2 is provided with positioning support members 5 corresponding to each guide fluid 1 at intervals.

[0045] The flexible suspension component 2 is not limited to ropes, but can also be chains, steel strips, webbing or flexible connectors. In this embodiment, a suspension rope is used. The positioning support 5 can be fixed by a fixing block, a pressure sleeve, a knot, a buckle, or directly fixing the flexible suspension component to the bent outer edge. In this embodiment, a fixing block is used.

[0046] In other words, the flexible suspension components 2 are arranged on both sides of the liquid receiving hopper, and each fluid guide 1 is fixed at intervals on the flexible suspension components 2. Positioning holes 121 and anti-sway guide holes 122 are provided on the outer edge 12 of the bend.

[0047] Specifically, a positioning support 5 is fixedly installed below each outer edge 12 of the flexible suspension component 2. One end of the flexible suspension component 2 passes through the positioning holes 121 on each outer edge 12 of the same side and is fixed to the installation position. The positioning support 5 corresponds to the outer edge of the bend one by one. The other end of the flexible suspension component 2 hangs down naturally. The positioning support 5 limits the position and maximum spacing of each liquid receiving hopper in the fully extended state.

[0048] Each bend 12 on the same side is connected to the same anti-sway guide 3 and can slide along the anti-sway guide 3. For easy disassembly and assembly, the anti-sway guide hole 122 is open on the outside and is locked onto the anti-sway guide 3. In this embodiment, the anti-sway guide is made of steel wire rope, which is fixed outside the liquid receiving hopper and moves in the same direction as the lifting structure. Steel wire rope is easy to obtain, inexpensive, and has a long service life. The anti-sway guide 3 is used to limit the lateral sway of the guide fluid 1 during stacking and drainage.

[0049] The bent outer edge 12 serves to fix the flexible suspension component, cooperate with the anti-sway guide component to prevent swaying, and limit the overlapping depth of adjacent guides to avoid complete embedding and wedging.

[0050] like Figure 10 and 11 As shown, the reversing discharge hopper 4 has an upwardly open liquid receiving cavity 41 and a directional discharge port 42. The discharge direction of the directional discharge port 42 intersects with the cavity direction of the liquid receiving cavity 41, thereby realizing the reversal and directional discharge of the liquid. The liquid receiving cavity 41 can support and contain the stacked guide fluid 1.

[0051] In this embodiment, the directional drain port is arranged horizontally, and the liquid receiving cavity 41 is fixedly connected to the lifting part of the lifting structure at the position away from the directional drain port 42; that is, the directional drain port 42 is provided at the end of the liquid receiving cavity 41 away from the lifting structure, and a flow guiding transition part is provided between the liquid receiving cavity 41 and the directional drain port 42. The flow guiding transition part adopts an arc-shaped surface or a slope, preferably an arc-shaped surface, so that the vertically falling liquid is turned to discharge and splashing is reduced.

[0052] The reversing discharge hopper 4 is fixedly connected to the lifting part of the lifting structure 5, and changes the length of the medium conveying channel of the suspended guide structure under the action of the lifting structure.

[0053] The lifting structure is located in a direction away from the drain outlet 42, and the lifting structure adopts a linear guide rail, such as a motor screw and nut structure. The nut is fixedly connected to the reversing drain bucket, and the screw is fixedly installed by two bearing seats. The motor drives the screw to rotate, and the rotation of the screw causes the nut to move up and down. The reversing drain bucket, which is fixedly connected to the nut, moves up and down accordingly, realizing the stacking and suspension between the reversing drain bucket and the receiving bucket.

[0054] Alternatively, a motor-chain drive structure can be used. This embodiment uses a motor-chain drive as an example. The motor 51 is fixedly mounted, and its output shaft drives the drive gear 52 to rotate. The drive gear 52 drives the chain 53, and the lower part of the chain 53 meshes with the driven gear 54. The driven gear 54 is hinged to the storage housing, and a tensioning structure is provided at the driven gear. The reversing discharge hopper 4 is fixed to the chain 53 and moves with the chain 53. The forward and reverse rotation of the motor realizes the up and down movement of the reversing discharge hopper 4. Synchronous belts, racks and pinions, or linear actuators can also be used.

[0055] To further limit the stacking depth of adjacent receiving hoppers and prevent wedge-tightening, the receiving hopper is also provided with a retaining edge 13 at the receiving port. The retaining edge 13 is adjacent to the bent outer edge 12. The combined effect of the retaining edge and the bent outer edge can prevent the stacked receiving hoppers from being completely stuck into the receiving hopper below or the reversing discharge hopper. Both the retaining edge and the bent outer edge adopt an upwardly inclined edge structure.

[0056] Furthermore, in order to further ensure the linearity of the movement of the receiving hopper and the reversing discharge hopper and the stability during discharge, a lifting guide structure is set up. The lifting guide structure includes a slider 81 and a guide rail 82. The guide rail 82 is fixedly set on both sides of the reversing discharge hopper 4. In this embodiment, the guide rail 82 can be made of steel plate locally. The slider 81 is made of steel welded to the reversing discharge hopper to form a groove structure. The guide rail passes through the groove.

[0057] The suspended flow guiding structure is mainly used to receive the fire extinguishing medium and transfer it to the reversing drain hopper for directional discharge. The lifting structure with the reversing drain hopper can change the length of the medium delivery channel to meet the filling needs of different battery storage locations.

[0058] The receiving hoppers are suspended and fixed by suspension ropes along the bent outer edges on both sides. When fully suspended, adjacent receiving hoppers do not contact each other, and the flow direction is maintained by the weight and inertia of the water.

[0059] Under normal conditions, the reversing discharge hopper is in a high position and supports multiple nested guide tubes 1. When the reversing discharge hopper descends, the guide tubes that have reached the suspension distance upstream are suspended by flexible suspension components. The reversing discharge hopper continues to move downward until it reaches the target discharge position. During the movement of the reversing discharge hopper, the remaining guide tubes 1 leave the nested body in sequence and unfold, thereby increasing the effective liquid delivery height. The liquid discharged from the fixed liquid source outlet is discharged into the reversing discharge hopper through the receiving hopper and discharged to the required position. After the discharge is completed, the reversing discharge hopper rises up to support the nested body again in sequence. During the discharge, both the reversing discharge hopper and the guide tubes are stationary.

[0060] Alternatively, under normal conditions, the entire guide fluid 1 can be suspended and deployed, with the reversing discharge hopper at a low position. When the target discharge position is at a higher level, the reversing discharge hopper rises up and stacks the upper receiving hoppers in sequence until the target discharge position is reached. The discharged liquid is discharged through the receiving hopper into the reversing discharge hopper and then discharged to the target discharge position.

[0061] This invention features a fixed liquid source 9 positioned above the suspended flow guide structure. The fixed liquid source supplies liquid and is installed on top of the multi-layer battery storage rack. Figure 12 As shown, the drain outlet 91 of the fixed liquid source corresponds to the upstream fluid inlet. The fixed liquid source can be a flexible storage bag, a rigid water tank, or an external fire water source. The drain outlet of the fixed liquid source is equipped with a drain control mechanism (not shown in the figure). When the reversing drain hopper is at the target drain position, the liquid discharged from the drain outlet of the fixed liquid source is transferred to the reversing drain hopper via the fluid and discharged to the target drain position.

[0062] The target drain position is the battery tray vertically positioned on the multi-layer battery storage rack. The liquid receiving area of ​​the battery tray is the target drain position. The reversing drain hopper moves in a dry state and drains the liquid after reaching the target drain position.

[0063] To prevent liquid from being discharged into the wrong layer, position detection devices can be installed at each target discharge position. The position detection devices can be connected to the discharge control mechanism. The fixed liquid source outlet must not be opened when the reversing discharge hopper 4 is not in position.

[0064] If a multi-layer battery storage rack has multiple rows of battery trays, each row of battery trays can be equipped with a variable-height open-gravity infusion device, or multiple rows of battery trays can share a single variable-height open-gravity infusion device. However, the variable-height open-gravity infusion device and each battery tray must be able to move relatively laterally and longitudinally. This can be achieved by keeping the variable-height open-gravity infusion device stationary while the individual battery trays of the battery storage rack move laterally, or by keeping the battery storage rack stationary while the entire variable-height open-gravity infusion device moves laterally left and right. Regardless of the expansion method used, positioning is completed when the fixed liquid source drain outlet is closed, and the guide fluid and reversing drain hopper remain stationary during the draining process.

[0065] This invention also provides a positioning infusion method using a variable-height open gravity infusion device, the steps of which are: Step S1: Keep the drain outlet of the fixed liquid source open or closed.

[0066] Step S2: The target drainage position can be determined according to the manual selection instruction or abnormal status detection signal. The lifting structure is controlled to drive the reversing drainage bucket (4) to move, so that at least part of the guide fluid 1 is stacked or unfolded in sequence and the reversing drainage bucket (4) reaches the target drainage position.

[0067] Step S3: Confirm that the reversing drain hopper 4 has reached the target drain position; in battery applications, it is also necessary to confirm that the target battery tray is in place and that the fixed liquid source storage volume meets the requirements.

[0068] Step S4: Open the drain outlet of the fixed liquid source. The liquid falls sequentially into the unfolded guide fluid 1 under gravity, then enters the reversing drain hopper 4 and is discharged into the target drain position through the directional drain port 42. During the draining process, keep the positions of the reversing drain hopper 42 and the guide fluid 1 unchanged.

[0069] Step S5: Determine that the drainage is complete based on the liquid level, flow rate, weight, drainage time, or remaining liquid in the liquid source, and close the drainage outlet of the fixed liquid source. When the reversing drainage hopper (4) is not in place, the liquid receiving container at the target drainage position is missing, the fixed liquid source has insufficient liquid storage, the lifting structure is faulty, or the position detection signal of the reversing drainage hopper (4) conflicts, the drainage outlet of the fixed liquid source shall not be automatically opened and an alarm shall be output.

[0070] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A variable-height open-type gravity infusion device, characterized in that: The system includes a lifting structure and an open gravity infusion mechanism. The open gravity infusion mechanism includes a suspension guide structure and a reversing drain hopper (4). The suspension guide structure includes multiple guides (1), a flexible suspension component (2), and an anti-sway guide component (3). Multiple guides (1) are fixed to the flexible suspension component (2) in a vertical direction at intervals. The flexible suspension component (2) limits the maximum spread distance of the multiple guides (1). There is no pressure-bearing sealed connection between adjacent guides (1), and the liquid falls freely in the spaced-out spread state. Each guide (1) has a through guide cavity (11). The guide cavity (11) has an upward liquid inlet and a downward liquid outlet. Each guide (1) slides with the anti-sway guide component (3). The setting direction of the anti-sway guide component (3) is parallel to the lifting direction of the lifting structure. The reversing discharge bucket (4) is located below the end guide fluid (1). The reversing discharge bucket (4) is fixedly connected to the lifting part of the lifting structure. When the lifting structure moves the reversing discharge bucket (4) between each target discharge position, the reversing discharge bucket (4) sequentially supports or releases at least part of the guide fluid (1), so that the guide fluid (1) switches between the stacked and retracted state and the spaced-out state, thereby changing the length of the medium delivery channel of the open gravity infusion mechanism.

2. The variable height open-type gravity infusion device according to claim 1, characterized in that: Between adjacent guide fluids (1), the outlet of the upstream guide fluid (1) is located within the receiving projection range of the receiving port of the downstream guide fluid (1), and the receiving port area of ​​the downstream guide fluid (1) is larger than the outlet area of ​​the upstream guide fluid (1); each guide fluid (1) and the downstream guide fluid (1) and the reversing discharge hopper (4) together form a medium transport channel with adjustable length.

3. The variable height open-type gravity infusion device according to claim 2, characterized in that: The fluid guide (1) is a liquid receiving hopper that is larger at the top and smaller at the bottom, and adjacent liquid receiving hoppers can be stacked on top of each other.

4. The variable height open-type gravity infusion device according to claim 3, characterized in that: The liquid receiving hopper is symmetrically provided with bent outer edges (12) on both sides of the liquid receiving port. Each bent outer edge (12) on the same side is fixed at intervals on the same flexible suspension member (2). The flexible suspension member (2) is provided at intervals with positioning support members (5) corresponding to each guide fluid (1). Each bent outer edge (12) on the same side is connected to the same anti-sway guide member (3) and can slide along the anti-sway guide member (3).

5. The variable height open-type gravity infusion device according to claim 4, characterized in that: The liquid receiving hopper is also provided with a baffle (13) at the liquid receiving port, and the baffle (13) is adjacent to the bent outer edge (12).

6. The variable height open-type gravity infusion device according to claim 1, characterized in that: The reversing discharge hopper (4) has an upward-opening liquid receiving cavity (41) and a directional discharge port (42). The discharge direction of the directional discharge port (42) intersects with the cavity direction of the liquid receiving cavity (41), and the position of the liquid receiving cavity (41) away from the directional discharge port (42) is fixedly connected to the lifting part of the lifting structure. The liquid receiving cavity (41) can support at least one collapsible guide fluid (1), and a flow guide transition part is provided between the liquid receiving cavity (41) and the directional discharge port (42).

7. The variable height open-type gravity infusion device according to claim 6, characterized in that: The reversing discharge hopper (4) is also slidably connected to the lifting guide structure.

8. The variable height open gravity infusion device according to any one of claims 1-7, characterized in that: A fixed liquid source is set above the suspended guide structure. The liquid outlet of the fixed liquid source is equipped with a liquid discharge control mechanism. The liquid outlet of the fixed liquid source corresponds to the liquid inlet of the upstream guide. When the reversing liquid discharge hopper (4) is in the target liquid discharge position, the liquid discharged from the liquid outlet of the fixed liquid source is transferred to the reversing liquid discharge hopper through the guide and discharged to the target liquid discharge position.

9. A positioning infusion method using the variable height open gravity infusion device as described in claim 8, characterized in that, Keep the outlet of the fixed liquid source open and closed. Control the lifting structure to move the reversing discharge bucket (4) according to the target discharge position, so that at least part of the guide fluid is stacked or unfolded in sequence and the reversing discharge bucket (4) reaches the target discharge position. After confirming that the target discharge position is in place, open the outlet of the fixed liquid source. The liquid discharged from the outlet of the fixed liquid source passes through the unfolded guide fluid in sequence by gravity and is discharged into the target discharge position by the reversing discharge bucket (4). Keep the position of the reversing discharge bucket (4) and the guide fluid unchanged during the discharge process.

10. The positioning infusion method according to claim 9, characterized in that, When the reversing drain hopper (4) is not in place, the liquid receiving container at the target drain position is missing, the fixed liquid source has insufficient liquid storage, the lifting structure is faulty, or the position detection signal of the reversing drain hopper (4) is conflicted, the drain outlet of the fixed liquid source shall not be automatically opened and an alarm shall be output.

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