A multifunctional cultivation frame for phalaenopsis

Abstract

This invention discloses a multifunctional cultivation rack for Phalaenopsis orchids, comprising: a main support frame; a lifting shelf, horizontally mounted on the main support frame, with sliding blocks at both ends of the lifting shelf, the sliding blocks being embedded in vertical adjustment slots, and locking knobs on the sliding blocks; a rotating bracket, slidably mounted on the lifting shelf, with a slot at its top; a water diversion and collection system, including a water collection tray and a water storage tank; and a supplemental lighting and spraying module, mounted above the lifting shelf, including a lifting crossbeam, with both ends of the lifting crossbeam slidably connected to the uprights. This invention, with its foldable main support frame and infinitely adjustable lifting shelf, allows for on-demand adjustment of the interlayer height, adapting to the cultivation needs of Phalaenopsis orchids throughout their entire growth cycle, from seedlings to mature plants with tall flower stalks, and catering to both large-scale greenhouse production and home balcony use.

Description

Technical Field

[0001] This invention relates to the field of flower cultivation equipment technology, and in particular to a multifunctional cultivation rack for Phalaenopsis orchids. Background Technology

[0002] Currently, large-scale greenhouse cultivation of Phalaenopsis orchids commonly uses integrated single-layer fixed seedbeds. These seedbeds only provide basic pot placement; the supporting sprinkler, supplemental lighting, drainage, and maintenance accessories are all separate, independent units. In actual production and operation, this results in several structural defects. First, the seedbed height is fixed, and the platform only accommodates a single size pot, failing to meet the cultivation needs of seedlings, medium-sized seedlings, large seedlings, and mature plants with tall flower stalks throughout their entire growth cycle. Pots laid flat have poor stability and are prone to tipping over, leading to low space utilization per unit cultivation area. Second, the seedbed lacks a plant rotation mechanism. Phalaenopsis orchids have strong phototropism; prolonged exposure to light from one side easily leads to etiolation and uneven plant shape. Manually rotating each pot is labor-intensive, and the flower stalks and leaves are easily damaged during handling. Third, the seedbed lacks a tiered drainage and water collection structure; excess water from the sprinkler drips directly onto the ground, preventing water and fertilizer recycling. The constantly damp ground is prone to bacterial growth, and water accumulation at the bottom of the pots easily leads to aerial root rot, resulting in low seedling survival rates. Fourth, the supplemental lighting and sprinkler pipes are fixed and separate, and their height cannot be dynamically adjusted according to plant growth. This results in blind spots for light and water mist on the inner side of the seedbed, leading to uneven growth among orchids of the same batch. Fifth, the seedbed lacks an integrated flower stalk support mechanism, requiring separate external flower rods to fix the flower spikes. These rigid rods easily scratch the flower stalk surface, resulting in a high breakage rate for finished products sold externally. Sixth, the seedbed lacks temperature and humidity sensors and automatic pest control modules, relying entirely on manual inspection for environmental management and pest control, leading to high labor costs. Seventh, the seedbed is welded and fixed as a whole, making it impossible to fold or disassemble. During the off-season, it occupies a significant amount of space, hindering transportation and storage. The continuous platform structure requires moving all potted seedlings on the outer side to access plants on the inner side, resulting in low efficiency in separating and screening seedlings and increased risk of plant damage. In summary, the existing single-layer seedbeds have limited functionality, related maintenance equipment is incompatible, labor costs are high, and product loss is significant, making it difficult to meet the needs of high-quality, large-scale cultivation of orchids. Summary of the Invention

[0003] The purpose of this invention is to provide a multifunctional cultivation rack for Phalaenopsis orchids to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a multifunctional cultivation rack for Phalaenopsis orchids, comprising: The main support frame includes two columns, a load-bearing base, and a horizontal connecting rod. The two columns are vertically arranged on both sides of the load-bearing base, and the bottom of the columns is hinged to the load-bearing base. The horizontal connecting rod is horizontally connected between the two columns. Several sets of vertical adjustment slots are opened on the surface of the columns. A cross connecting rod is provided between the two columns, and the two ends of the cross connecting rod are hinged to the two columns. A lifting shelf is horizontally mounted on the main support frame. Sliding blocks are provided at both ends of the lifting shelf. The sliding blocks are embedded in the vertical adjustment slots. Locking knobs are provided on the sliding blocks. A rotating bracket, which is slidably mounted on the lifting shelf, has a slot on its top; A water diversion and collection system is installed below the lifting platform. The water diversion and collection system includes a water collection tray and a water storage tank, and the water collection tray and the water storage tank are connected by a water diversion hose. A supplementary lighting spray module is installed above the lifting shelf. The supplementary lighting spray module includes a lifting beam, and both ends of the lifting beam are slidably sleeved with the column. The lifting rack has several layers, and the lifting racks are arranged at vertical intervals along the column.

[0005] According to the multifunctional cultivation rack for Phalaenopsis orchids provided by the present invention, the main support frame further includes a spring-locking buckle, which is disposed at the hinge node of the cross link and engages with the cross link; the column is made of aluminum alloy profile and the surface of the column is coated with an anti-ultraviolet coating.

[0006] According to the multifunctional cultivation rack for Phalaenopsis orchids provided by the present invention, the lifting rack includes a hollow mesh frame, the two ends of the hollow mesh frame are connected to the sliding block, the hollow mesh frame has a plurality of hollow gaps, and the front and rear sides of the hollow mesh frame are respectively provided with sliding grooves, and the rotating bracket is slidably assembled with the hollow mesh frame through the sliding grooves.

[0007] According to the multifunctional cultivation rack for Phalaenopsis orchids provided by the present invention, the rotating rack includes a rack body, a rotating motor and a conductive slip ring. The rotating motor is disposed at the bottom of the rack body, and the conductive slip ring is disposed at the rotating shaft of the rotating motor. A bidirectional elastic telescopic clamping arm is disposed inside the rack body, and a soft silicone cushioning pad is disposed on the inner side of the clamping arm.

[0008] According to the multifunctional cultivation rack for Phalaenopsis orchids provided by the present invention, the water collection tray is an inclined structure, a guide groove is provided at one end of the water collection tray, a plurality of partitioned water-blocking protrusions are provided inside the water collection tray, a handle is provided on the side of the water collection tray, a water level sensor is provided inside the water storage tank, and the guide hose is vertically arranged, the guide hose connecting each layer of the water collection tray and the water storage tank.

[0009] According to the multifunctional cultivation rack for Phalaenopsis orchids provided by the present invention, an LED supplemental light and a spray pipe are provided on the lifting beam. The LED supplemental light is fixed at the bottom of the lifting beam. The spray pipe is arranged along the length of the lifting beam and is provided with a plurality of atomizing nozzles. The spray pipe is connected to the water storage tank through a water pipe and is provided with a booster water pump and a solenoid valve.

[0010] According to the multifunctional cultivation rack for Phalaenopsis orchids provided by the present invention, a flower stalk support mechanism is inserted into the slot. The flower stalk support mechanism includes a vertical telescopic main rod and a horizontal binding branch. The bottom of the telescopic main rod is inserted into the slot, and the horizontal binding branch is disposed on the telescopic main rod. The horizontal binding branch is provided with a soft silicone buckle.

[0011] According to the multifunctional cultivation rack for Phalaenopsis orchids provided by the present invention, an environmental monitoring module is provided on the lifting beam. The environmental monitoring module includes a temperature and humidity sensor, a carbon dioxide sensor, and an ozone atomizing sterilization nozzle. The temperature and humidity sensor, the carbon dioxide sensor, and the ozone atomizing sterilization nozzle are all located on the lifting beam. A single-chip microcomputer control board is also provided on the lifting beam. The single-chip microcomputer control board is electrically connected to the temperature and humidity sensor, the carbon dioxide sensor, and the ozone atomizing sterilization nozzle, respectively.

[0012] The present invention discloses the following technical effects: This invention features a foldable main support frame combined with a steplessly adjustable lifting shelf, allowing for on-demand adjustment of the height between layers. This adapts to the cultivation needs of Phalaenopsis orchids throughout their entire growth cycle, from seedlings to mature plants with tall flower stalks. The multi-layered, three-dimensional arrangement significantly increases the number of plants cultivated per unit area, while the folded storage reduces the overall footprint, balancing large-scale greenhouse production with home balcony usage scenarios.

[0013] The layered inclined water collection structure of this invention enables the residual water from the spraying to be recycled to the water storage tank layer by layer, reducing water and fertilizer waste. The water collection tray is set separately from the bottom of the pot to avoid water accumulation and soaking the roots, reducing the incidence of root rot and stem rot. The multi-layer independent water collection arrangement improves the environment inside the rack and reduces the problem of damp ground breeding bacteria.

[0014] This invention's synchronously lifting and lowering integrated supplemental lighting and spraying module ensures uniform light and water mist coverage for each layer of plants, eliminating weak light and spray dead zones on the inner side. The pull-out bracket simplifies daily maintenance operations, reducing the workload of manual seedling separation and plant handling. The rotating bracket ensures even light exposure for the plants, improving overall maintenance efficiency and finished product quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments 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.

[0016] Figure 1 is a schematic diagram of the overall structure of a multifunctional cultivation rack for Phalaenopsis orchids according to the present invention.

[0017] The components include: 1. Main support frame; 2. Lifting shelf; 3. Rotating bracket; 4. Water collection tray; 5. Supplemental lighting spray module; 6. Water storage tank; 7. Flower stem support mechanism; 8. Spring locking buckle; 9. Load-bearing base; 10. Cross linkage; 11. Vertical adjustment slot; 12. Locking knob; 13. Flow guide channel; 14. Sliding block; 15. Rotary motor; and 16. Conductive slip ring. Detailed Implementation

[0018] 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.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figure 1 This invention provides a multifunctional cultivation rack for Phalaenopsis orchids, comprising: The main support frame 1 includes two columns, a load-bearing base 9, and a horizontal connecting rod. The two columns are vertically arranged on both sides of the load-bearing base 9, and the bottom of the columns is hinged to the load-bearing base 9. The horizontal connecting rod is horizontally connected between the two columns. Several sets of vertical adjustment slots 11 are opened on the surface of the columns. A cross connecting rod 10 is provided between the two columns, and the two ends of the cross connecting rod 10 are hinged to the two columns. The lifting shelf 2 is horizontally set on the main support frame 1. The lifting shelf 2 has sliding blocks 14 at both ends. The sliding blocks 14 are embedded in the vertical adjustment slots 11. The sliding blocks 14 are equipped with locking knobs 12. Rotary bracket 3 is slidably mounted on lifting shelf 2, and a slot is provided on the top of rotary bracket 3; A water diversion and collection system is installed below the lifting platform 2. The water diversion and collection system includes a water collection tray 4 and a water storage tank 6. The water collection tray 4 and the water storage tank 6 are connected by a water diversion hose. The supplementary lighting spray module 5 is installed above the lifting shelf 2. The supplementary lighting spray module 5 includes a lifting beam, and the two ends of the lifting beam are slidably connected to the columns. The lifting rack 2 has several layers, and the lifting rack 2 is arranged at vertical intervals along the column.

[0021] In use, first unfold the main support frame 1. The two uprights rotate outwards around the hinge axis on the bottom load-bearing base 9 until they are vertical. The cross link 10 unfolds synchronously with the uprights. The two ends of the cross link 10 slide along the uprights to the set position and then lock, ensuring the overall frame remains stable and upright. The horizontal connecting rod enhances the lateral stability between the two uprights. Adjust the height of the lifting shelf 2 according to the cultivation needs of different growth stages of the Phalaenopsis orchid. Loosen the locking knob 12 on the sliding block 14, move the sliding block 14 up and down along the vertical adjustment slot 11 on the surface of the upright to the target height, and tighten the locking knob 12 to fix the shelf height. Several lifting shelves 2 can be adjusted to different heights to accommodate plants at different growth stages. Place the Phalaenopsis orchid pots on the rotating bracket 3. The rotating bracket 3 slides onto the lifting shelf 2 and can be pulled back and forth along the shelf surface. Pots in the inner layers can be removed without moving the outer plants, facilitating daily seedling division and screening. During the spraying process, excess water seeps from the bottom of the flowerpot and falls into the water collection tray 4 below. The water collection tray 4 is arranged at an angle, and the water flows along the slope to the end of the water collection tray 4. Then, it flows down layer by layer through the vertical guide hose and finally flows into the water storage tank 6 at the bottom for collection and storage. The lifting beam of the supplemental lighting and spraying module 5 slides up and down along the column to adjust its height, so that the lifting beam maintains a suitable distance from the top of the plants below. The supplemental lighting and spraying components carried on the lifting beam provide light and water mist spray to the plants below. The lifting beam adjusts its height synchronously with the shelf to ensure that each layer of plants receives uniform light and water mist coverage.

[0022] Further optimizing the design, the main support frame 1 also includes a spring locking buckle 8, which is set at the hinge node of the cross link 10 and engages with the cross link 10; the column is made of aluminum alloy profile and the surface of the column is coated with an anti-ultraviolet coating.

[0023] When the cross link 10 is extended to the set angle, the latch, under the action of the spring, engages in the slot of the hinge node, restricting the reverse rotation of the cross link 10 and keeping the frame in the unfolded state; pressing the latch compresses the spring to release the lock, allowing for folding and storage. The aluminum alloy profile is lightweight and high-strength, and the surface anti-UV coating blocks ultraviolet radiation, slowing down the oxidation and degradation rate of the profile surface and extending its service life in high-humidity environments.

[0024] Further optimization of the scheme: the lifting shelf 2 includes a hollow grid frame, the two ends of which are connected to the sliding block 14. Several hollow gaps are opened on the hollow grid frame, and sliding grooves are opened on the front and rear sides of the hollow grid frame respectively. The rotating bracket 3 is slidably assembled with the hollow grid frame through the sliding grooves.

[0025] The perforated grid frame, through its grid-like perforated structure, creates a continuous airflow channel while ensuring load-bearing strength. Air circulates freely between layers through the perforated gaps, improving ventilation at the base of the plant. The front and rear side rails provide sliding guide tracks for the rotating bracket 3. The bracket moves linearly along the rails, and the sidewalls of the rails constrain it to prevent tilting during movement, enabling pull-out and drop-out of the bracket without moving the outer plants to access the inner layers.

[0026] Further optimization of the design: the rotating bracket 3 includes a bracket body, a rotating motor 15 and a conductive slip ring 16. The rotating motor 15 is located at the bottom of the bracket body, and the conductive slip ring 16 is located at the rotating shaft of the rotating motor 15. A bidirectional elastic telescopic clamping arm is provided inside the bracket body, and a soft silicone cushioning pad is provided on the inner side of the clamping arm.

[0027] A rotary motor 15 drives the bracket body to rotate at a constant speed around a vertical axis, causing the flowerpots on the bracket to rotate synchronously. A conductive slip ring 16 maintains continuous circuitry during rotation through sliding contact between the rotating ring and the stationary brush, preventing wires from twisting and tangling with the bracket. A bidirectional elastic telescopic clamping arm applies radial clamping force to the flowerpots from both sides using spring force, automatically adapting to flowerpots of different diameters. A soft silicone buffer pad increases friction on the clamping surface and cushions vibrations, preventing the flowerpots from slipping or scratching the surface.

[0028] The scheme is further optimized. The water collection tray 4 is an inclined structure. A guide groove 13 is provided at one end of the water collection tray 4. Several partition water-proof protrusions are provided inside the water collection tray 4. A handle is provided on the side of the water collection tray 4. A water level sensor is provided inside the water storage tank 6. The guide hose is set vertically and connects the water collection trays 4 of each layer with the water storage tank 6.

[0029] The inclined water collection tray 4 utilizes gravity to allow residual water from the spray to flow downwards along the slope, and the guide channel 13 collects the water flow from the slope to form a concentrated flow path. Partitioned water-blocking ridges divide the water collection tray 4 into several independent areas, with each flowerpot corresponding to an independent water collection area, preventing water from overflowing horizontally within the tray. A flexible guide tube vertically connects each layer of the water collection tray 4, allowing water to flow from top to bottom, layer by layer, into the bottom water storage tank 6. A handle provides a pull point for easy disassembly and cleaning of the water collection tray 4. A water level sensor detects and provides feedback on the water level in the water storage tank 6.

[0030] The design was further optimized by installing LED supplementary lights and spray pipes on the lifting beam. The LED supplementary lights were fixed at the bottom of the lifting beam, and the spray pipes were arranged along the length of the lifting beam. Several atomizing nozzles were installed on the spray pipes, which were connected to the water storage tank 6 via water pipes. A booster pump and a solenoid valve were installed on the water pipes.

[0031] LED supplemental lighting emits full-spectrum light downwards, providing the plants with the necessary illumination for photosynthesis. The sprinkler system runs along the length of the crossbeam. A booster pump pumps water from the storage tank 6 into the system, creating a high-pressure water flow. This high-pressure water is broken into fine mist particles by the tiny nozzles of the atomizing spray head, spraying downwards to cover the plant leaves and aerial roots. A solenoid valve controls the flow of water, automatically switching between timed spraying and water / fertilizer supply.

[0032] The design is further optimized by inserting a flower stem support mechanism 7 into the slot. The flower stem support mechanism 7 includes a vertical telescopic main rod and a horizontal binding branch. The bottom of the telescopic main rod is inserted into the slot, and the horizontal binding branch is set on the telescopic main rod. The horizontal binding branch is equipped with a soft silicone buckle.

[0033] The vertical telescopic main pole achieves height adjustment through the relative sliding of the connecting pole sections, accommodating flower stems of different lengths. Horizontal binding branches extend radially along the main pole, providing lateral support points for the flower stems. Soft silicone clips, through elastic deformation, firmly hold the flower stems; the flexible contact surface prevents scratches on the stem's surface from rigid support components, while providing sufficient grip to prevent slippage, achieving upright fixation and directional guidance of the flower stems.

[0034] The design has been further optimized by installing an environmental monitoring module on the lifting beam. The environmental monitoring module includes a temperature and humidity sensor, a carbon dioxide sensor, and an ozone atomizing sterilization nozzle. The temperature and humidity sensor, carbon dioxide sensor, and ozone atomizing sterilization nozzle are all installed on the lifting beam. A microcontroller control board is also installed on the lifting beam. The microcontroller control board is electrically connected to the temperature and humidity sensor, carbon dioxide sensor, and ozone atomizing sterilization nozzle, respectively.

[0035] Temperature and humidity sensors, along with carbon dioxide sensors, collect real-time data on temperature, humidity, and gas concentration within the microenvironment of the rack, transmitting electrical signals to a microcontroller control board. The microcontroller compares the detected data with preset thresholds and triggers corresponding actions: it activates atomizing spray humidification when humidity is too low, activates supplemental lighting when light is insufficient, and activates ozone atomizing sterilization nozzles to release low-concentration ozone water mist when the timer cycle is reached, disinfecting the interlayer air and plant surfaces, thus achieving closed-loop automatic control of environmental parameters.

[0036] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0037] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A multifunctional cultivation rack for Phalaenopsis orchids, characterized in that, include: The main support frame (1) includes two columns, a load-bearing base (9) and a horizontal connecting rod. The two columns are vertically arranged on both sides of the load-bearing base (9). The bottom of the columns is hinged to the load-bearing base (9). The horizontal connecting rod is horizontally connected between the two columns. Several sets of vertical adjustment slots (11) are opened on the surface of the columns. A cross connecting rod (10) is provided between the two columns. The two ends of the cross connecting rod (10) are hinged to the two columns. The lifting rack (2) is horizontally set on the main support frame (1). The lifting rack (2) has sliding blocks (14) at both ends. The sliding blocks (14) are embedded in the vertical adjustment slot (11). The sliding blocks (14) are equipped with locking knobs (12). A rotating bracket (3) is slidably mounted on the lifting shelf (2), and a slot is provided on the top of the rotating bracket (3); A water diversion and collection system is provided below the lifting platform (2). The water diversion and collection system includes a water collection tray (4) and a water storage tank (6). The water collection tray (4) and the water storage tank (6) are connected by a water diversion hose. A supplementary lighting spray module (5) is provided above the lifting shelf (2). The supplementary lighting spray module (5) includes a lifting beam, and the two ends of the lifting beam are slidably connected to the column. The lifting rack (2) has several layers, and several lifting racks (2) are arranged at vertical intervals along the column.

2. The multifunctional cultivation rack for Phalaenopsis orchids according to claim 1, characterized in that, The main support frame (1) also includes a spring locking buckle (8), which is located at the hinge node of the cross link (10) and engages with the cross link (10); the column is made of aluminum alloy profile and the surface of the column is coated with an anti-ultraviolet coating.

3. The multifunctional cultivation rack for Phalaenopsis orchids according to claim 1, characterized in that, The lifting rack (2) includes a hollow mesh frame. The two ends of the hollow mesh frame are connected to the sliding block (14). The hollow mesh frame has several hollow gaps. The front and rear sides of the hollow mesh frame are respectively provided with sliding grooves. The rotating bracket (3) is slidably assembled with the hollow mesh frame through the sliding grooves.

4. A multifunctional cultivation rack for Phalaenopsis orchids according to claim 1, characterized in that, The rotating bracket (3) includes a bracket body, a rotating motor (15) and a conductive slip ring (16). The rotating motor (15) is located at the bottom of the bracket body, and the conductive slip ring (16) is located at the shaft of the rotating motor (15). A bidirectional elastic telescopic clamping arm is provided inside the bracket body, and a soft silicone cushioning pad is provided on the inner side of the clamping arm.

5. A multifunctional cultivation rack for Phalaenopsis orchids according to claim 1, characterized in that, The water collection tray (4) is an inclined structure. A guide groove (13) is provided at one end of the water collection tray (4). Several partitioned water-blocking protrusions are provided inside the water collection tray (4). A handle is provided on the side of the water collection tray (4). A water level sensor is provided inside the water storage tank (6). The guide hose is set vertically and connects the water collection trays (4) of each layer with the water storage tank (6).

6. A multifunctional cultivation rack for Phalaenopsis orchids according to claim 1, characterized in that, The lifting beam is equipped with LED supplementary lights and spray pipes. The LED supplementary lights are fixed at the bottom of the lifting beam. The spray pipes are arranged along the length of the lifting beam. Several atomizing nozzles are provided on the spray pipes. The spray pipes are connected to the water storage tank (6) through water pipes. A booster pump and a solenoid valve are provided on the water pipes.

7. A multifunctional cultivation rack for Phalaenopsis orchids according to claim 1, characterized in that, A flower stem support mechanism (7) is inserted into the slot. The flower stem support mechanism (7) includes a vertical telescopic main rod and a horizontal binding branch. The bottom of the telescopic main rod is inserted into the slot. The horizontal binding branch is set on the telescopic main rod and is provided with a soft silicone buckle.

8. A multifunctional cultivation rack for Phalaenopsis orchids according to claim 1, characterized in that, An environmental monitoring module is installed on the lifting beam. The environmental monitoring module includes a temperature and humidity sensor, a carbon dioxide sensor, and an ozone atomizing sterilization nozzle. The temperature and humidity sensor, the carbon dioxide sensor, and the ozone atomizing sterilization nozzle are all installed on the lifting beam. A microcontroller control board is also installed on the lifting beam. The microcontroller control board is electrically connected to the temperature and humidity sensor, the carbon dioxide sensor, and the ozone atomizing sterilization nozzle, respectively.

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