Shower capable of rotating and switching spray head

Abstract

The invention relates to the technical field of spraying equipment, in particular to a spray head rotating and switching display device which comprises a base, a rotating disc, a rotating driving assembly, a lifting driving assembly, a feeding device and a plurality of spray heads. The rotary driving assembly drives the rotary disc to rotate, so that the different nozzles are sequentially aligned with the feeding device, then the lifting driving assembly controls the feeding device to descend, the exhibition arrangement process is simplified, manual operation is reduced, all the exhibition nozzles can be connected into the system in turn to achieve real spraying operation, and the working performance of products of various models is completely presented; and the limitation of static display is avoided.

Description

Technical Field

[0001] This invention relates to the field of spraying equipment technology, and more particularly to a nozzle rotation switching display. Background Technology

[0002] In the exhibition scene of the spraying equipment industry, a complete spraying system consists of auxiliary equipment such as a signal generator, liquid supply pump, and air source device, as well as nozzles. It is characterized by high cost and large size. Due to space and budget constraints, most exhibitors can only configure a complete system for one nozzle for on-site spraying demonstration. The other nozzles are displayed statically or replaced with promotional pictures, which cannot show the actual working state. A few manufacturers equip multiple nozzles with independent systems, but this greatly increases the transportation weight, exhibition difficulty and space requirements, putting greater pressure on small and medium-sized exhibitors. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to solve at least one of the technical problems mentioned above.

[0004] The solution to the technical problem of this invention is: a nozzle rotation switching display device, comprising a base; a turntable disposed on the base, the turntable being rotatably connected to the base; a plurality of nozzles disposed on the turntable; a rotation drive assembly disposed on the base, the rotation drive assembly driving the turntable to rotate, causing the nozzles to rotate around the rotation axis of the turntable; a lifting drive assembly disposed on the base; and a feeding device disposed at the movable end of the lifting drive assembly, the lifting drive assembly driving the feeding device to move up and down, so that the output end of the feeding device is connected to a single nozzle.

[0005] As a further improvement to the above technical solution, the rotary drive assembly includes a rotary motor, a rotating shaft, a bearing housing, and a bearing. The rotary motor is mounted on the base. One end of the rotating shaft is fixedly connected to the drive end of the rotary motor, and the other end of the rotating shaft is fixedly connected to the turntable. The bearing housing is mounted on the base and is rotatably connected to the rotating shaft through the bearing.

[0006] As a further improvement to the above technical solution, the lifting drive assembly includes a lifting motor, a coupling, a ball screw, a screw nut, a slider, and a guide rail; the lifting motor is mounted on the base, one end of the ball screw is connected to the output shaft of the lifting motor through the coupling, the other end of the ball screw is mounted on the base and can rotate relative to the base, the screw nut is threadedly connected to the ball screw, the slider is fixedly connected to the screw nut, the guide rail is mounted vertically on the base, the slider is slidably connected to the guide rail, and the feeding device is fixedly mounted on the slider.

[0007] As a further improvement to the above technical solution, the slider is provided with a bushing, the guide rail is a guide shaft vertically arranged on the base, the bushing is provided with a through hole, and the guide shaft is inserted into the through hole and slidably connected with the through hole.

[0008] As a further improvement to the above technical solution, a limiting component is also included. The limiting component includes a mounting plate, a position sensor, and a sensing block. The mounting plate is disposed on the base, the sensing block is disposed on the feeding device, and the position sensor is disposed on the mounting plate. The position sensor is used to sense the sensing block and is communicatively connected to the lifting drive component.

[0009] As a further improvement to the above technical solution, a sliding groove extending in the vertical direction is provided on the mounting plate, and the position sensor is connected to the mounting plate through the sliding groove by fasteners, so that the position sensor is fixed relative to the mounting plate.

[0010] As a further improvement to the above technical solution, the feeding device includes a housing disposed at the movable end of the lifting drive assembly and a main air passage and a main liquid passage disposed inside the housing. Each nozzle is provided with a branch air passage and a branch liquid passage. The top of each branch air passage and branch liquid passage is provided with a pagoda connector. The bottom of each main air passage and main liquid passage is provided with a sealing ring and a plug-in port that matches the pagoda connector. The inner wall of the plug-in port is provided with a chamfer and an annular groove for installing the sealing ring.

[0011] As a further improvement to the above technical solution, the feeding device further includes a main signal circuit disposed inside the housing, and each nozzle is also provided with a branch signal circuit. The top of the branch signal circuit is provided with a first metal contact. The main signal circuit includes an elastic element and a second metal contact. A groove is provided on the housing, and the second metal contact is slidably disposed in the groove. One end of the elastic element is fixedly connected to the housing, and the other end of the elastic element is fixedly connected to the second metal contact. The elastic element has a tendency to push the second metal contact toward the opening of the groove, so that when the pagoda connector is inserted into the insertion pipe, the first metal contact and the second metal contact maintain close contact.

[0012] As a further improvement to the above technical solution, it also includes a controller, a liquid supply pump, an air pump, and a signal generator. The liquid supply pump, air pump, and signal generator are respectively connected to the feeding device through pipelines. The controller is electrically connected to the rotary drive assembly and the lifting drive assembly, and the controller is communicatively connected to the liquid supply pump, air pump, and signal generator.

[0013] As a further improvement to the above technical solution, the turntable is provided with 3-6 nozzles arranged in a circumferential array, and the included angle between the centers of adjacent nozzles is equal.

[0014] The beneficial effects of this invention are as follows: the base provides stable support; the turntable carries multiple nozzles, and the nozzle position is switched in conjunction with the rotary drive assembly; the rotary drive assembly drives the turntable to rotate coaxially, adjusting the angular displacement of the turntable so that different nozzles rotate sequentially to the bottom of the feeding device; the lifting drive assembly controls the up and down movement of the feeding device; the feeding device connects to external auxiliary equipment to provide liquid, high-pressure gas, and excitation signals to the selected nozzles; the nozzles achieve spraying operations by connecting to the resources of the feeding device, intuitively presenting product performance. By driving the turntable to rotate through the rotary drive assembly, different nozzles are aligned with the feeding device in sequence, and then the feeding device is lowered by the lifting drive assembly, simplifying the exhibition setup process, reducing manual operation, and allowing all exhibiting nozzles to take turns connecting to the system to achieve real spraying operations, fully presenting the working performance of each model of product, avoiding the limitations of static display; sharing a single feeding device eliminates the need for an independent system for each nozzle, significantly reducing the costs of purchasing, transporting, and renting exhibition equipment, reducing space occupation, and adapting to the needs of small and medium-sized exhibitors. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of an embodiment of the present invention.

[0016] Figure 2 This is a second structural schematic diagram of one embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the docking structure of the feeding device and the nozzle according to one embodiment of the present invention.

[0018] Reference numerals in the attached drawings: 100-Base, 200-Turntable, 300-Rotary drive assembly, 310-Rotary motor, 320-Shaft, 330-Bearing housing, 400-Lifting drive assembly, 410-Lifting motor, 420-Coupling, 430-Ball screw, 440-Screw nut, 450-Slider, 451-Busset, 460-Guide rail, 500-Feeding device, 510-Housing shell, 520-Main air passage, 521-Sealing ring. 522-Connector port, 523-Chamfer, 524-Annular groove, 530-Main liquid path, 540-Main signal circuit, 541-Elastic element, 542-Second metal contact, 543-Groove, 600-Nozzle, 610-Branch signal circuit, 611-First metal contact, 620-Branch air path, 621-Pagoda connector, 630-Branch liquid path, 700-Limiting assembly, 710-Mounting plate, 711-Slide groove, 720-Position sensor. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments have been briefly explained above. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0021] In the exhibition scene of the spraying equipment industry, a complete spraying system consists of auxiliary equipment such as a signal generator, liquid supply pump, and air source device, as well as nozzles. It is characterized by high cost and large size. Due to space and budget constraints, most exhibitors can only configure a complete system for one nozzle for on-site spraying demonstration. The other nozzles are displayed statically or replaced with promotional pictures, which cannot show the actual working state. A few manufacturers equip multiple nozzles with independent systems, but this greatly increases the transportation weight, exhibition difficulty and space requirements, putting greater pressure on small and medium-sized exhibitors.

[0022] Therefore, the present invention proposes a nozzle rotation switching display device, referring to... Figures 1-3 It includes a base 100; a turntable 200 disposed on the base 100, the turntable 200 being rotatably connected to the base 100; a plurality of nozzles 600 disposed on the turntable 200; a rotation drive assembly 300 disposed on the base 100, the rotation drive assembly 300 driving the turntable 200 to rotate, causing the nozzles 600 to rotate around the rotation axis 320 of the turntable 200; a lifting drive assembly 400 disposed on the base 100; and a feeding device 500 disposed at the movable end of the lifting drive assembly 400, the lifting drive assembly 400 driving the feeding device 500 to move up and down, so that the output end of the feeding device 500 docks with a single nozzle 600.

[0023] The base 100 provides stable support; the turntable 200 carries multiple nozzles 600, and works with the rotary drive assembly 300 to switch the position of the nozzles 600; the rotary drive assembly 300 drives the turntable 200 to rotate coaxially, and adjusts the angular displacement of the turntable 200 so that different nozzles 600 rotate sequentially to below the feeding device 500; the lifting drive assembly 400 controls the up and down movement of the feeding device 500; the feeding device 500 is connected to external auxiliary equipment to provide liquid, high-pressure gas and excitation signals to the selected nozzle 600; the nozzles 600 achieve spraying operations by receiving resources from the feeding device 500, and intuitively present the product performance. The rotary drive component 300 drives the turntable 200 to rotate, so that different nozzles 600 are aligned with the feeding device 500 in sequence. Then, the lifting drive component 400 controls the feeding device 500 to descend, simplifying the exhibition setup process and reducing manual operation. All exhibiting nozzles 600 can be connected to the system in turn to realize real spraying operations, fully showcasing the working performance of each model of product and avoiding the limitations of static display. By sharing a set of feeding devices 500, there is no need to configure an independent system for each nozzle 600, which greatly reduces the cost of purchasing, transporting and renting exhibition equipment, reduces space occupation, and is suitable for the needs of small and medium-sized exhibitors.

[0024] During operation, multiple nozzles 600 of different specifications and uses are installed on the spraying station of the turntable 200. The feeding device 500 is connected to external liquid supply, air supply equipment and signal generator. The rotary drive assembly 300 drives the turntable 200 to rotate, rotating the target nozzle 600 to below the feeding device 500 to complete the positioning. The lifting drive assembly 400 drives the feeding device 500 to descend, docking the feeding device 500 with the target nozzle 600 and driving the nozzle 600 to work, realizing on-site spraying demonstration. After the demonstration of one nozzle 600 is completed, the lifting drive assembly 400 drives the feeding device 500 to rise and disconnect. The rotary drive assembly 300 continues to drive the turntable 200 to rotate the next nozzle 600 to the working position, repeating the docking and demonstration steps to realize the automatic rotation display of multiple nozzles 600.

[0025] The motor shaft needs to withstand both torque and radial loads simultaneously, making it prone to bending and deformation, which causes the turntable 200 to wobble and vibrate during rotation. Therefore, in one embodiment, the rotary drive assembly 300 includes a rotary motor 310, a rotating shaft 320, a bearing housing 330, and a bearing. The rotary motor 310 is mounted on the base 100. One end of the rotating shaft 320 is fixedly connected to the drive end of the rotary motor 310, and the other end of the rotating shaft 320 is fixedly connected to the turntable 200. The bearing housing 330 is mounted on the base 100 and is rotatably connected to the rotating shaft 320 via the bearing. The fit between the bearing and the bearing housing 330 provides radial and axial support for the rotating shaft 320, effectively offsetting the gravitational load of the turntable 200 and the nozzle 600, preventing swaying, shaking or axial movement during rotation, and ensuring that the turntable 200 always maintains a stable rotation state; it also provides positional accuracy assurance for the rapid docking of the feeding device 500 and the nozzle 600, reducing leakage and signal interruption problems caused by docking deviation, and improving the reliability of the demonstration process.

[0026] To further improve the rotational positioning accuracy of the turntable 200 and ensure that each nozzle 600 stops accurately directly below the feeding device 500, the rotation drive assembly 300 also includes an angle sensor (not shown in the figure) and a rotation controller (not shown in the figure). The angle sensor can be mounted on the rotating shaft 320 or the bearing housing 330 to detect the rotation angle in real time and feed it back to the rotation controller. The rotation controller is electrically connected to the rotary motor 310. By comparing the feedback angle with a preset angle, the rotation controller controls the start and stop of the rotary motor 310, achieving precise positioning of the nozzle station and avoiding cumulative errors.

[0027] In exhibition settings, the equipment needs to switch nozzles 600 frequently, and deviations in the lifting position may cause coaxiality deviations when the main pipeline and branch pipelines are connected. Therefore, in one embodiment, the lifting drive assembly 400 includes a lifting motor 410, a coupling 420, a ball screw 430, a screw nut 440, a slider 450, and a guide rail 460; the lifting motor 410 is mounted on the base 100, one end of the ball screw 430 is connected to the output shaft of the lifting motor 410 through the coupling 420, the other end of the ball screw 430 is mounted on the base 100 and can rotate relative to the base 100, the screw nut 440 is threadedly connected to the ball screw 430, the slider 450 is fixedly connected to the screw nut 440, the guide rail 460 is mounted vertically on the base 100, the slider 450 is slidably connected to the guide rail 460, and the feeding device 500 is fixedly mounted on the slider 450. The ball screw 430 drives and guides the guide rail 460, ensuring that the feeding device 500 moves smoothly in the vertical direction and accurately docks with the target nozzle 600, avoiding pipeline leakage and poor circuit contact caused by positional deviation; the sliding cooperation between the slider 450 and the guide rail 460 restricts the radial movement of the feeding device 500, ensuring sealing and safety during docking.

[0028] In exhibition settings, equipment requires high-frequency, long-term continuous operation. Direct contact and sliding between the slider 450 and the guide rail 460 could lead to accelerated wear, necessitating frequent maintenance and replacement, thus increasing exhibition costs. Therefore, in one embodiment, the slider 450 is equipped with a bushing 451, and the guide rail 460 is a guide shaft vertically mounted on the base 100. The bushing 451 has a through hole, and the guide shaft is inserted into and slidably connected to the through hole. The bushing 451 and the guide shaft have a surface contact fit, resulting in a large contact area, which helps reduce swaying and wobble during lifting and lowering, ensuring smooth vertical movement of the feeding device 500 and guaranteeing docking accuracy. The bushing 451 is typically made of wear-resistant material, possesses self-lubricating properties, or can store grease, effectively reducing frictional wear with the guide shaft, extending component lifespan, and adapting to high-frequency switching requirements. The elasticity or buffering properties of the bushing 451 can absorb minor impact forces during docking, reducing damage to components and improving the safety and continuity of the demonstration process.

[0029] The descent stroke of the feeding device 500 cannot be precisely controlled, which may lead to overtravel and damage to the pipeline due to pressure. Therefore, in one embodiment, a limiting component 700 is also included. The limiting component 700 includes a mounting plate 710, a position sensor 720, and a sensing block. The mounting plate 710 is disposed on the base 100, the sensing block is disposed on the feeding device 500, and the position sensor 720 is disposed on the mounting plate 710. The position sensor 720 is used to sense the sensing block and is communicatively connected to the lifting drive assembly 400. When the sensing block is detected to have reached a preset position, a position signal is sent to the lifting drive assembly 400 to stop the descent of the lifting drive assembly 400. The position sensor 720 achieves non-contact positioning through the sensing block, avoiding overtravel or undertravel and ensuring reliable connection between the pipeline and the circuit. The sensor provides real-time feedback of the position signal to ensure consistency in each docking action, improving the continuity and professionalism of the demonstration process.

[0030] To provide dual safety protection and prevent damage to the pipeline or nozzle caused by overtravel of the feeding device 500 due to position sensor 720 failure or program error, mechanical hard limiters (not shown in the figure) can be set at the upper and lower limit positions of the guide rail 460. For example, buffer pads or limit bolts can be installed. When the slider 450 moves and touches the hard limiter, it will be physically blocked, thereby forcibly stopping the movement and ensuring equipment safety.

[0031] When changing nozzles 600 at different heights or calibrating positioning deviations, it may be necessary to disassemble the mounting plate 710 and re-drill holes, which is cumbersome and time-consuming, affecting the efficiency of exhibition setup. Therefore, in one embodiment, the mounting plate 710 is provided with a vertically extending groove 711, and the position sensor 720 is connected to the mounting plate 710 through the groove 711 by fasteners, so that the position sensor 720 is relatively fixed to the mounting plate 710. Fasteners can be bolts, with the slide groove 711 extending vertically. The bolts can move up and down along the slide groove 711, driving the position sensor 720 to adjust its height. This allows for quick adaptation to the docking requirements of nozzles 600 of different heights or calibration of positioning deviations without disassembling the mounting plate 710. During adjustment, simply loosen the bolts, move the sensor to the target position, and then tighten them again. The operation is simple, requiring no professional tools, and is suitable for the rapid adjustment needs at exhibition sites, saving setup and debugging time. There is no need to design separate mounting holes or replace the mounting plate 710 for different nozzle 600 specifications. One structure can adapt to multiple scenarios, reducing component processing and replacement costs and improving equipment versatility.

[0032] In exhibition settings, frequent switching of nozzles 600 is required. Ordinary quick-connect fittings may wear down due to repeated insertion and removal, leading to liquid and gas leaks. Therefore, in one embodiment, the feeding device 500 includes a housing 510 disposed at the movable end of the lifting drive assembly 400 and a main air passage 520 and a main liquid passage 530 disposed inside the housing 510. Each nozzle 600 is provided with a branch air passage 620 and a branch liquid passage 630. The top of each branch air passage 620 and branch liquid passage 630 is provided with a pagoda connector 621. The bottom of each main air passage 520 and main liquid passage 530 is provided with a sealing ring 521 and a connector 522 that matches the pagoda connector 621. The inner wall of the connector 522 is provided with a chamfer 523 and an annular groove 524 for installing the sealing ring 521. When the feeding device 500 descends, the pagoda connector 621 inserts into the insertion port 522 and compresses the sealing ring 521, achieving a sealed connection between the liquid and gas circuits, effectively preventing liquid and gas leakage, ensuring a clean demonstration environment and equipment safety; without the need for thread tightening or complex operations, the pagoda connector 621 can be quickly inserted into the insertion port 522 when the feeding device 500 descends, adapting to the switching requirements of the high-frequency nozzle 600 and improving the smoothness of the demonstration process; the chamfer 523 on the inner wall of the insertion port 522 guides the pagoda connector 621 to be inserted smoothly, which can compensate for slight docking deviations, reduce the requirements for equipment positioning accuracy, and reduce the probability of docking failure; the pagoda connector 621 and the insertion port 522 experience minimal wear during insertion and removal, and the sealing ring 521 is installed in the annular groove 524, making it less likely to fall off or be damaged, extending the service life of components and reducing exhibition and maintenance costs.

[0033] High-frequency plugging and unplugging may cause contact wear and oxidation, resulting in poor contact and signal interruption. Especially in high-frequency switching scenarios at exhibitions, the probability of failure increases significantly, affecting the demonstration effect. Therefore, in one embodiment, the feeding device 500 further includes a main signal circuit 540 disposed inside the housing 510, and each nozzle 600 is also provided with a branch signal circuit 610. The top end of the branch signal circuit 610 is provided with a first metal contact 611. The main signal circuit 540 includes an elastic element 541 and a second metal contact 542. A groove 543 is provided on the housing 510. The second metal contact 542 is slidably disposed in the groove 543. One end of the elastic element 541 is fixedly connected to the housing 510, and the other end of the elastic element 541 is fixedly connected to the second metal contact 542. The elastic element 541 has a tendency to push the second metal contact 542 toward the opening direction of the groove 543, so that when the pagoda connector 621 is inserted into the insertion port 522, the first metal contact 611 and the second metal contact 542 maintain close contact. The elastic element 541 can be a spring. When the feeding device 500 descends to the spraying position, the first metal contact 611 and the second metal contact 542 abut against each other to form an electrical connection, transmitting the high-frequency electrical signal output by the external signal generator to the current nozzle 600. The elastic element 541 provides a continuous preload force, ensuring that the first and second metal contacts 542 are always tightly abutted without the need for insertion or removal, thus avoiding mechanical wear. This adapts to the need for frequent switching of multiple nozzles 600 during exhibitions and reduces the risk of signal interruption.

[0034] Manually switching nozzles 600, connecting pipelines, and starting and stopping the equipment involves complex and time-consuming procedures, which cannot meet the high-frequency demonstration needs of multiple nozzles 600 and affects the exhibition experience. Therefore, in one embodiment, a controller, a liquid supply pump, an air pump, and a signal generator are also included. The liquid supply pump, air pump, and signal generator are respectively connected to the feeding device 500 through pipelines. The controller is electrically connected to the rotary drive assembly 300 and the lifting drive assembly 400, and the controller is communicatively connected to the liquid supply pump, air pump, and signal generator. Specifically, the controller is configured to, upon receiving a start command, control the rotary drive assembly 300 to operate, driving the turntable 200 to rotate, causing the next target nozzle 600 to rotate to the spraying station directly below the material supply device 500; after the nozzle 600 is in position, the controller controls the lifting drive assembly 400 to drive the material supply device 500 to descend vertically, and the output end of the material supply device 500 docks with the single nozzle 600; after docking is completed, the liquid supply pump, air pump, and signal generator are turned on to carry out continuous spraying operations; after the operation is completed, all functional units are turned off, and the lifting drive assembly 400 is controlled to drive the material supply device 500 to rise and disengage, returning to the standby position, ready to enter the next switching cycle.

[0035] The following details the specific implementation process of the present invention, especially the sequence of coordinated actions between the components during system operation. When the user turns on the system power, the rotary drive assembly 300 drives the turntable 200 to reset, and the lifting drive assembly 400 drives the feeding device 500 to reset. When the start button is pressed, the rotary motor 310 is controlled to operate, driving the turntable 200 to rotate, rotating the first nozzle 600 directly below the feeding device 500. During rotation, the encoder or limit sensor provides real-time feedback of the angle position to ensure positioning accuracy. After the target nozzle 600 is accurately aligned, the controller sends a descent command to the lifting drive assembly 400, driving the feeding device 500 to continue moving downwards, bringing the feeding device 500 directly below the target nozzle. The standard nozzle 600 is docked; after successful docking, the controller delays for 1-2 seconds to stabilize the connection, then activates the feeding device 500 to supply liquid, high-pressure gas, and high-frequency electrical signals to the selected nozzle 600, initiating the spraying process. The duration is 10 seconds, adjustable from 5 to 30 seconds. After the spraying time ends, the controller shuts off the feeding device 500 and issues a lifting command, controlling the lifting motor 410 to reverse, driving the feeding device 500 to rise and detach from the current nozzle 600, returning to the upper limit standby position. Subsequently, the system determines whether to continue with the next spraying task. If the user does not input a stop command, the controller will continue to control the rotary motor 310 to rotate, switching to the next nozzle 600, and repeating the docking, spraying, and separation process, achieving automatic rotation of multiple nozzles 600. When the system receives an external stop signal, regardless of whether it is currently spraying or in a waiting state, the controller immediately interrupts all actions: firstly, it shuts down the feeding device 500 to prevent liquid leakage or accidental spraying; then, it controls the lifting drive assembly 400 to drive the feeding device 500 to a safe high position, disconnecting it from the nozzle 600. In summary, this system, through the controller coordinating multiple subsystems such as rotation, lifting, fluid supply, and electrical signal transmission, achieves automated, rotating display and safe, reliable shutdown control of multi-station nozzles 600, making it suitable for various application scenarios such as product demonstrations, teaching experiments, and process comparisons.

[0036] An excessive number of nozzles 600 may lead to an increased diameter and uneven inertia of the turntable 200, causing it to wobble during rotation. Therefore, in one embodiment, the turntable 200 is arranged with 3-6 nozzles 600 in a circumferential array, with equal center angles between adjacent nozzles 600. The arrangement of 3-6 nozzles 600 satisfies the display needs of products with multiple specifications and uses, avoiding the limitations of displaying a single nozzle 600; it also prevents excessively long rotation paths due to an excessive number, ensuring fast switching speeds and improving the smoothness of the demonstration process; the circumferential array and equal angle distribution ensure uniform inertia distribution of the nozzles 600, with the center of gravity of the turntable 200 coinciding with the rotation axis 320, reducing sway and vibration during rotation, lowering the load on the rotation drive component 300, and extending the equipment's lifespan; preferably, a layout of 4 nozzles 600 at a 90° angle ensures sufficient display capacity while minimizing the diameter of the turntable 200, reducing booth space occupation, adapting to space constraints in exhibition scenarios, and being particularly beneficial for small and medium-sized exhibitors.

[0037] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A nozzle rotation switching display device, characterized in that, include: Base; A turntable is disposed on the base, and the turntable is rotatably connected to the base; Multiple nozzles are mounted on the rotary table; A rotary drive assembly is mounted on the base. The rotary drive assembly drives the turntable to rotate, causing the nozzle to rotate around the rotation axis of the turntable. A lifting drive assembly is mounted on the base; A feeding device is located at the movable end of the lifting drive assembly. The lifting drive assembly drives the feeding device to move up and down, so that the output end of the feeding device is connected to a single nozzle.

2. The nozzle rotation switching display device according to claim 1, characterized in that, The rotary drive assembly includes a rotary motor, a rotating shaft, a bearing housing, and a bearing. The rotary motor is mounted on the base. One end of the rotating shaft is fixedly connected to the drive end of the rotary motor, and the other end of the rotating shaft is fixedly connected to the turntable. The bearing housing is mounted on the base and is rotatably connected to the rotating shaft via the bearing.

3. The nozzle rotation switching display device according to claim 1, characterized in that, The lifting drive assembly includes a lifting motor, a coupling, a ball screw, a screw nut, a slider, and a guide rail. The lifting motor is mounted on the base. One end of the ball screw is connected to the output shaft of the lifting motor via the coupling, and the other end of the ball screw is mounted on the base and can rotate relative to the base. The screw nut is threadedly connected to the ball screw. The slider is fixedly connected to the screw nut. The guide rail is vertically mounted on the base, and the slider is slidably connected to the guide rail. The feeding device is fixedly mounted on the slider.

4. The nozzle rotation switching display device according to claim 3, characterized in that, The slider is provided with a bushing, the guide rail is a guide shaft vertically arranged on the base, the bushing is provided with a through hole, and the guide shaft is inserted into the through hole and slidably connected with the through hole.

5. The nozzle rotation switching display device according to claim 1, characterized in that, It also includes a limiting component, which includes a mounting plate, a position sensor, and a sensing block. The mounting plate is disposed on the base, the sensing block is disposed on the feeding device, and the position sensor is disposed on the mounting plate. The position sensor is used to sense the sensing block and is communicatively connected to the lifting drive component.

6. The nozzle rotation switching display device according to claim 5, characterized in that, The mounting plate has a vertically extending groove, and the position sensor is connected to the mounting plate through the groove by fasteners, so that the position sensor is fixed relative to the mounting plate.

7. The nozzle rotation switching display device according to claim 1, characterized in that, The feeding device includes a housing disposed at the movable end of the lifting drive assembly and a main air passage and a main liquid passage disposed inside the housing. Each nozzle is provided with a branch air passage and a branch liquid passage. The top of each branch air passage and branch liquid passage is provided with a pagoda connector. The bottom of each main air passage and main liquid passage is provided with a sealing ring and a plug-in port that matches the pagoda connector. The inner wall of the plug-in port is provided with a chamfer and an annular groove for installing the sealing ring.

8. The nozzle rotation switching display device according to claim 7, characterized in that, The feeding device also includes a main signal circuit disposed inside the housing, and each nozzle is also provided with a branch signal circuit. The top of the branch signal circuit is provided with a first metal contact. The main signal circuit includes an elastic element and a second metal contact. A groove is provided on the housing, and the second metal contact is slidably disposed in the groove. One end of the elastic element is fixedly connected to the housing, and the other end of the elastic element is fixedly connected to the second metal contact. The elastic element has a tendency to push the second metal contact toward the opening of the groove, so that when the pagoda connector is inserted into the insertion pipe, the first metal contact and the second metal contact maintain close contact.

9. The nozzle rotation switching display device according to claim 1, characterized in that, It also includes a controller, a liquid supply pump, an air pump, and a signal generator. The liquid supply pump, air pump, and signal generator are respectively connected to the feeding device through pipelines. The controller is electrically connected to the rotary drive assembly and the lifting drive assembly, and the controller is communicatively connected to the liquid supply pump, air pump, and signal generator.

10. The nozzle rotation switching display device according to claim 1, characterized in that, The turntable is arranged in a circumferential array of 3-6 nozzles, and the included angle between the centers of adjacent nozzles is equal.

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