A flowerpot with a rotating function

Abstract

The utility model discloses a flowerpot with rotation function, including pot body, power transmission subassembly and drive arrangement, pot body includes fixed setting shell and inner shell, the shell is equipped with the embedded cavity of upward opening, the top of inner shell is equipped with the planting cavity, the inside of shell is equipped with the installation cavity, power transmission subassembly includes the circuit board as control center, the touch detection module of electric connection on the circuit board, the touch response stick of installation in the planting cavity bottom and with touch detection module electric connection and the loudspeaker of installation in the installation cavity and with circuit board electric connection, drive arrangement installs in the installation cavity and with circuit board electric connection, when the human body touches the plant, the circuit board controls the loudspeaker to play corresponding prompt sound, and the circuit board controls drive arrangement to be used for driving inner shell to rotate activity, the utility model discloses a touch response stick and drive arrangement to make the human body touch the plant, and the flowerpot rotates, simultaneously, the loudspeaker will play the sound, that is, the flowerpot can realize the interaction between the plant and the people.

Description

Technical Field

[0001] This utility model relates to the field of intelligent flower pot technology, specifically to a flower pot with a rotating function. Background Technology

[0002] In modern life, people are paying more and more attention to the quality of life and the creation of a pleasant environment, and bringing plants indoors has become a popular trend. To cater to people's needs, a variety of smart flower pots have appeared on the market.

[0003] Application No. 202522569229.3 discloses a multifunctional smart flowerpot, specifically comprising a pot body and electronic components; an installation cavity is provided inside the pot body, and an upward-opening planting cavity is provided at the top of the pot body; the electronic components include a circuit board installed in the installation cavity and serving as the control center, a touch detection module electrically connected to the circuit board, a touch sensor rod installed at the bottom of the planting cavity and electrically connected to the touch detection module, and a speaker installed in the installation cavity and electrically connected to the circuit board; the touch sensor rod is used to interact with the soil and plants placed in the planting cavity; when a human touches the plant, a capacitance signal is formed between the human body and the plant, which is detected by the touch detection module and ultimately collected by the circuit board, and then the circuit board controls the speaker to play a corresponding prompt tone.

[0004] However, there is still room for improvement in the aforementioned smart flowerpot: for example, when touched, the flowerpot can only emit a corresponding sound through a speaker, and the plant in the flowerpot cannot rotate to change direction, so its fun factor needs to be improved.

[0005] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a flowerpot with a rotating function, which is equipped with a touch detection module, a touch sensor, and a driving device that work together. When a person touches the plant in the flowerpot, the capacitance signal formed between the person and the plant is collected by the control center, which then controls the driving device to rotate the flowerpot. At the same time, a speaker plays a corresponding prompt tone. In other words, the flowerpot can interact with people through the plant it is planted in, making it more fun.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A flowerpot with a rotating function includes a pot body, a power transmission assembly, and a drive device; the pot body includes a fixedly disposed outer shell and an inner shell; the outer shell is provided with an upward-opening embedding cavity for matching installation of the inner shell; the top of the inner shell is provided with an upward-opening planting cavity; the interior of the outer shell is provided with an installation cavity; the power transmission assembly includes a circuit board mounted in the installation cavity and serving as a control center, a touch detection module electrically connected to the circuit board, a touch sensor rod vertically mounted at the bottom of the planting cavity and electrically connected to the touch detection module, and a speaker mounted in the installation cavity and electrically connected to the circuit board; The driving device is installed inside the mounting cavity and electrically connected to the circuit board; the driving device can be used to drive the inner shell to rotate; the touch sensor and the driving device are respectively used to cooperate with the soil and plants placed in the planting cavity; when a human touches the plant, a capacitance signal is formed between the human and the plant, the capacitance signal is detected by the touch detection module and finally collected by the circuit board, and then the circuit board uses the collected signal to control the driving device and the speaker respectively; the driving device can be used to drive the inner shell to rotate a certain distance; the circuit board controls the speaker to play a corresponding prompt tone.

[0009] Furthermore, the driving device includes a drive motor electrically connected to the circuit board and a movable base connected to the output end of the drive motor; a magnet is provided on the inner side of the top surface of the movable base and the inner side of the bottom of the inner shell; the magnets are magnetically coupled to transmit power simultaneously; when the movable base rotates, the attraction between the magnets on the top surface of the movable base and the bottom of the inner shell will drive the inner shell to rotate to a preset position.

[0010] Furthermore, a first mounting groove is provided on the inner side of the top surface of the movable base; a second mounting groove is provided on the inner side of the bottom of the inner shell; and the magnets are respectively installed inside the first mounting groove and the second mounting groove.

[0011] Furthermore, the touch sensing rod has a first inner cavity and a conductive assembly vertically mounted in the first inner cavity; the conductive assembly includes a long spring, an iron shell, a short spring, and a metal ball; the iron shell has a second inner cavity; the upper end of the long spring is connected to the top of the touch sensing rod, and the lower end of the long spring is connected to the top of the iron shell; the short spring and the metal ball are matched and mounted in the second inner cavity; the upper end of the short spring is connected to the top of the second inner cavity, and the lower end of the short spring is connected to the upper end of the metal ball; the lower end of the metal ball is electrically connected to the touch detection module on the circuit board.

[0012] Furthermore, the top of the outer casing is provided with a through hole communicating with the mounting cavity; a metal block is provided at the top of the through hole; the metal block is stepped, and the upper diameter of the metal block is larger than the lower diameter of the metal block; the lower end of the metal block is matched and locked in the through hole, thereby preventing the metal block from falling downward; the metal ball is installed in the second inner cavity that can move up and down; the upper end of the metal block abuts against the lower end of the metal ball of the conductive assembly, and the short spring can keep the metal ball with a downward tendency so that the metal ball and the metal block remain in contact; the metal block is electrically connected to the touch detection module.

[0013] Furthermore, a control panel is provided on the outer wall of the basin; a light sensor electrically connected to the circuit board is installed on the control panel to continuously detect changes in the light around the basin.

[0014] Furthermore, the control panel is also equipped with a button assembly, a recording microphone, and a recording indicator light that are electrically connected to the circuit board; the button assembly includes a recording button and a power switch button that respectively cooperate with the recording microphone and the recording indicator light; when the recording button is pressed, the recording indicator light lights up, and people can record through the recording microphone, and the recorded sound can be played back through the speaker.

[0015] Furthermore, a battery electrically connected to the circuit board and used to provide power is also provided in the mounting cavity.

[0016] Furthermore, a first water outlet hole is provided on the bottom surface of the planting cavity, extending vertically; a second water outlet hole is provided in the embedding cavity at a position corresponding to the first water outlet hole; the second water outlet hole extends downward from the bottom surface of the embedding cavity to the bottom surface of the basin.

[0017] Furthermore, a roller is installed at the bottom of the inner shell; the lower end of the roller abuts against the bottom surface of the embedded cavity, and the roller can rotate along the moving direction of the inner shell. The roller can mitigate the impact of the inner shell during movement, prevent the inner shell from directly contacting the outer shell and causing wear or jamming, and improve the stability of the structure.

[0018] The beneficial effects of this utility model are as follows:

[0019] The purpose of this invention is to provide a flowerpot with a rotating function, which is equipped with a touch detection module, a touch sensor, and a driving device that work together. When a person touches the plant in the flowerpot, the capacitance signal formed between the person and the plant is collected by the control center, which then controls the driving device to rotate the flowerpot. At the same time, a speaker plays a corresponding prompt tone. In other words, the flowerpot can interact with people through the plant it is planted in, making it more fun. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0021] Figure 2 yes Figure 1 Cross-sectional view along the middle AA;

[0022] Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0023] Figure 4 yes Figure 3 Cross-sectional view along the middle BB;

[0024] Figure 5 This is a top view of the present invention;

[0025] Figure 6 This is a bottom view of the present invention;

[0026] Figure 7 This is an internal view of the present invention after the outer shell has been removed;

[0027] Figure 8 This is an exploded view of the interior of this utility model after the outer shell has been removed.

[0028] Figure Labels

[0029] 1. Basin body; 11. Outer shell; 111. Embedding cavity; 112. Mounting cavity; 113. Through hole; 12. Inner shell; 121. Planting cavity; 122. Second embedding groove; 13. First water outlet; 14. Second water outlet;

[0030] 2. Drive unit; 21. Drive motor; 22. Movable base; 221. First mounting slot; 23. Magnet;

[0031] 3. Circuit board;

[0032] 4. Touch sensor rod; 41. First inner cavity; 42. Conducting component; 421. Long spring; 422. Iron shell; 4221. Second inner cavity; 423. Short spring; 424. Metal ball; 43. Metal block;

[0033] 5. Speaker;

[0034] 6. Control panel; 61. Light sensor; 62. Button assembly; 621. Recording button; 622. Power button; 63. Recording microphone; 64. Recording indicator light;

[0035] 7. Battery; 8. Roller. Detailed Implementation

[0036] The utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely exemplary and does not limit the scope of protection of the utility model.

[0037] like Figures 1-8 As shown, a flowerpot with a rotating function includes a pot body 1, a power transmission assembly, and a drive device 2. The pot body 1 includes a fixedly disposed outer shell 11 and an inner shell 12. The outer shell 11 is provided with an upward-opening embedding cavity 111 for mounting the inner shell 12. The top of the inner shell 12 is provided with an upward-opening planting cavity 121. An installation cavity 112 is provided inside the outer shell 11. The power transmission assembly includes a circuit board 3 mounted in the installation cavity 112 and serving as the control center, a touch detection module (not shown) electrically connected to the circuit board 3, a touch sensor 4 vertically mounted at the bottom of the planting cavity 121 and electrically connected to the touch detection module, and a speaker 5 mounted in the installation cavity 112 and electrically connected to the circuit board 3. Specifically, the circuit board 3 is mounted on the wall of the installation cavity 112.

[0038] like Figure 2 , Figure 4 As shown, the drive device 2 is installed in the mounting cavity 112 and is electrically connected to the circuit board 3; the drive device 2 can be used to drive the inner shell 12 to rotate.

[0039] like Figures 1-7 As shown, the touch sensor 4 and the drive device 2 are used to interact with the soil and plants placed in the planting cavity 121, respectively. When a person touches the plant, a capacitance signal is formed between the person and the plant. This capacitance signal is detected by the touch detection module and finally collected by the circuit board 3. Then, the circuit board 3 uses the collected signal to control the drive device 2 and the speaker 5, respectively. The drive device 2 can be used to rotate the inner shell 12 a certain distance. The circuit board 3 controls the speaker 5 to play corresponding prompts, such as "hello" or "welcome". Therefore, the naturally conductive mediums such as soil and plants in this smart flowerpot are actually equivalent to touch sensors.

[0040] In summary, this invention triggers a specific prompt sound by human touch on a plant. When a user touches the plant in the flowerpot, a capacitive signal is generated between the human body and the plant. This signal is detected by the touch detection module and ultimately collected by the circuit board 3. The circuit board 3 then uses the collected signal to control the drive device 2 and the speaker 5. The drive device 2 rotates the inner shell 12, causing the plant to rotate simultaneously. The circuit board 3 also controls the speaker 5 to play the corresponding prompt sound. In other words, with this design, touching the plant not only produces a prompt sound but also causes the plant to rotate accordingly, enhancing the overall enjoyment.

[0041] like Figures 1-4 As shown, the drive device 2 includes a drive motor 21 electrically connected to the circuit board 3 and a movable base 22 connected to the output end of the drive motor 21. In other embodiments, a reducer (not shown in the figure) can also be provided between the drive motor 21 and the movable base 22. A magnet 23 is provided on the inner side of the top surface of the movable base 22 and the inner side of the bottom surface of the inner shell 12. The magnets 23 are magnetically coupled to transmit power simultaneously. When the movable base 22 rotates, the attraction between the magnets 23 on the top surface of the movable base 22 and the bottom surface of the outer wall of the inner shell 12 will drive the inner shell 12 to rotate to a preset position.

[0042] like Figures 1-4 As shown, a first mounting groove 221 is provided on the inner side of the top surface of the movable base 22; a second mounting groove 122 is provided on the inner side of the bottom surface of the inner shell 12; magnets 23 are respectively installed inside the first mounting groove 221 and the second mounting groove 122; two of each of the first mounting groove 221 and the second mounting groove 122 are provided, and the two first mounting grooves 221 and the two second mounting grooves 122 are respectively arranged symmetrically on both sides; magnets 23 are respectively installed inside the first mounting groove 221 and the second mounting groove 122; thus, two magnets 23 are provided on the inner side of the top surface of the movable base 22 and two magnets 23 are provided on the inner side of the bottom surface of the inner shell 12. Through the above arrangement, the magnetic coupling connection formed between the magnets 23 realizes non-contact power transmission, so that when the movable base 22 rotates under the drive of the drive motor 21, it can synchronously drive the inner shell 12 to rotate to a preset position by means of magnetic coupling force.

[0043] like Figure 2As shown, the touch sensor 4 has a first inner cavity 41 and a conductive assembly 42 vertically mounted in the first inner cavity 41. The conductive assembly 42 includes a long spring 421, an iron shell 422, a short spring 423, and a metal ball 424. The iron shell 422 has a second inner cavity 4221 inside. The upper end of the long spring 421 is connected to the top of the touch sensor 4, and the lower end of the long spring 421 is connected to the top of the iron shell 422. The short spring 423 and the metal ball 424 are matched and mounted in the second inner cavity 4221. The upper end of the short spring 423 is connected to the top of the second inner cavity 4221, and the lower end of the short spring 423 is connected to the upper end of the metal ball 424. The lower end of the metal ball 424 is electrically connected to the touch detection module on the circuit board 3. Through the above arrangement, the conductive assembly 42 can be pre-assembled, reducing the overall assembly difficulty.

[0044] like Figure 2 As shown, the top of the outer casing 11 is provided with a through hole 113 communicating with the mounting cavity 112; a metal block 43 is provided on the top of the through hole 113; the metal block 43 is stepped, and the diameter of the upper end of the metal block 43 is larger than the diameter of the lower end of the metal block 43; the lower end of the metal block 43 is fitted into the through hole 113. Through the above arrangement, the metal block 43 can be prevented from falling downwards, and moisture can be effectively prevented from seeping into the through hole 113 and affecting other electronic components.

[0045] like Figure 2 As shown, in this embodiment, the metal ball 424 is movably mounted in the second inner cavity 4221; the upper end of the metal block 43 abuts against the lower end of the metal ball 424 in the conductive assembly 42; the short spring 423 keeps the metal ball 424 in a downward moving tendency so that the metal ball 424 remains in contact with the metal block 43; the metal block 43 is electrically connected to the touch detection module. Through the above arrangement, the elastic force of the short spring 423 keeps the metal ball 424 pressed firmly against the metal block 43 at all times. This elastic force is automatically maintained regardless of how the inner shell 12 rotates, thereby avoiding signal interruption due to poor contact.

[0046] It can be seen that by using the combination of conductive component 42 and metal block 43, a stable electrical connection structure can be formed between circuit board 3, touch detection module and touch sensing rod 4, which helps to maintain signal stability.

[0047] like Figure 1 As shown, a control panel 6 is also provided on the outer wall of the basin 1; a light sensor 61 electrically connected to the circuit board 3 is installed on the control panel 6 to continuously detect changes in the light around the basin 1.

[0048] The optical sensor 61 has multiple functions:

[0049] 1. Regardless of whether the surrounding environment is day or night, the circuit board 3 controls the touch detection module to maintain the detection state. When a person touches the plant, the circuit board 3 uses the touch detection module to collect the capacitance signal and then sends the signal to the drive motor 21. After receiving the signal, the drive motor 21 drives the movable base 22 to rotate a certain distance. The movable base 22 will drive the inner shell 11 to rotate, and then the plant will also adjust a certain angle.

[0050] 2. When the light sensor 61 senses that the surrounding environment of the pot 1 is in daytime, the pot 1 will automatically adjust the direction of the plant according to the preset light intensity. Specifically, when the light intensity reaches the preset intensity, the circuit board 3 controls the drive motor 21 to drive the movable base 22 to rotate a certain distance, so that the inner shell 12 also rotates. At this time, the direction of the plant will also automatically rotate and adjust by a certain angle.

[0051] 3. When the light sensor 61 senses that the surrounding environment of the pot 1 is a daytime environment, after a person touches the plant, the circuit board 3 uses the touch detection module to collect the capacitance signal, and then the circuit board 3 controls the speaker 5 to emit the corresponding prompt sound.

[0052] 4. When the light sensor 61 senses that the surrounding environment of the pot 1 is at night, the pot 1 will not automatically adjust the direction of the plant. Specifically, when the light intensity is lower than the preset threshold, even if the circuit board 3 collects the capacitor signal, the circuit board 3 will not control the drive motor 21. At this time, the drive motor 21 cannot drive the movable base 22 to rotate, and the direction of the plant will not automatically rotate to adjust the angle.

[0053] 5. When the light sensor 61 senses that the surrounding environment of the pot 1 is at night, even if the circuit board 3 collects the capacitance signal after a person touches the plant, the circuit board 3 will not control the speaker 5 to emit a prompt sound.

[0054] In summary, through the above settings, the circuit board 2 controls the light sensor 131 to achieve ambient light mode switching, which can extend the life of the basin 1 and avoid disturbing the user at night.

[0055] like Figure 1As shown, the control panel 6 also includes a button assembly 62, a recording microphone 63, and a recording indicator light 64, all electrically connected to the circuit board 3. The button assembly 62 includes a recording button 621 that corresponds to the recording microphone 63 and the recording indicator light 64, and a power switch 622. The power switch 622 acts as the main power switch for the basin 1, controlling the power on and off of the entire circuit system. When the recording button 621 is pressed, the recording indicator light 64 illuminates, allowing users to record audio using the recording microphone 63. The recorded audio can then be played back through the speaker 5. Specifically, the recording indicator light 64 illuminates for 15 seconds, after which it turns off, indicating the end of recording. This configuration provides immediate feedback to the user, allowing them to see the current recording status and preventing accidental operation. Furthermore, the addition of voice recording functionality enhances the product's interactivity, fun, and user experience.

[0056] like Figure 2 , Figure 4 As shown, a battery 7, electrically connected to the circuit board 3 and used to provide power, is also provided in the mounting cavity 112. This arrangement ensures that the battery 7 continuously supplies power to the circuit board 3, guaranteeing that the basic functions of the basin 1 are not affected.

[0057] like Figure 2 , Figure 5 As shown, a first water outlet 13 penetrating vertically is provided on the bottom surface of the planting cavity 121; a second water outlet 14 corresponding to the first water outlet 13 is provided in the embedding cavity 111; the second water outlet 14 extends downward from the bottom surface of the embedding cavity 111 to the bottom surface of the pot body 1. Through the above arrangement, excess water in the planting cavity 121 can fall into the embedding cavity 111 through the first water outlet 13 and finally be discharged through the second water outlet 14.

[0058] like Figure 2 As shown, a roller 8 is installed at the bottom of the inner shell 12; the lower end of the roller 8 abuts against the bottom surface of the embedded cavity 111, and the roller 8 can rotate along the moving direction of the inner shell 12. In this embodiment, in order to ensure the moving stability of the inner shell 12, three rollers 8 are provided, and each roller 8 is installed at the bottom of the inner shell 12 and evenly distributed. Through the above arrangement, the rollers 8 can mitigate the impact brought by the inner shell 12 during movement, avoid direct contact between the inner shell 12 and the outer shell 11, which would lead to wear or jamming, and improve the stability of the structure.

[0059] As a preferred configuration, the touch sensor 4 is made of conductive material. There are no specific limitations on the material used, as long as it can be used to form an electrical connection with the circuit board 3 and the touch detection module.

[0060] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A flowerpot with a rotating function, characterized in that: Includes basin, power transmission components, and drive unit; The basin body includes a fixed outer shell and an inner shell; the outer shell is provided with an upward-opening embedding cavity for fitting the inner shell; the top of the inner shell is provided with an upward-opening planting cavity; and the interior of the outer shell is provided with an installation cavity. The power transmission assembly includes a circuit board installed in the mounting cavity and serving as the control center, a touch detection module electrically connected to the circuit board, a touch sensor rod vertically installed at the bottom of the implantation cavity and electrically connected to the touch detection module, and a speaker installed in the mounting cavity and electrically connected to the circuit board. The drive device is installed inside the mounting cavity and electrically connected to the circuit board; the drive device can be used to drive the inner shell to rotate. The touch sensor and the drive device are respectively used to cooperate with the soil and plants placed in the planting cavity; when a human touches the plant, a capacitance signal is formed between the human and the plant. The capacitance signal is detected by the touch detection module and finally collected by the circuit board. Then, the circuit board uses the collected signal to control the drive device and the speaker respectively; the drive device can be used to drive the inner shell to rotate a certain distance; the circuit board controls the speaker to play corresponding prompt sounds.

2. The flowerpot with a rotating function according to claim 1, characterized in that: The driving device includes a drive motor electrically connected to the circuit board and a movable base connected to the output end of the drive motor; a magnet is provided on the inner side of the top surface of the movable base and the inner side of the bottom of the inner shell; the magnets are magnetically coupled to transmit power simultaneously; when the movable base rotates, the attraction between the magnets on the top surface of the movable base and the bottom of the inner shell will drive the inner shell to rotate to a preset position.

3. The flowerpot with a rotating function according to claim 2, characterized in that: The inner side of the top surface of the movable base is provided with a first mounting groove; the inner side of the bottom of the inner shell is provided with a second mounting groove; the magnets are respectively installed inside the first mounting groove and the second mounting groove.

4. The flowerpot with a rotating function according to claim 1, characterized in that: The touch sensor bar has a first inner cavity and a conductive assembly vertically mounted in the first inner cavity. The conductive assembly includes a long spring, an iron shell, a short spring, and a metal ball. The iron shell has a second inner cavity. The upper end of the long spring is connected to the top of the touch sensor bar, and the lower end of the long spring is connected to the top of the iron shell. The short spring and the metal ball are matched and mounted in the second inner cavity. The upper end of the short spring is connected to the top of the second inner cavity, and the lower end of the short spring is connected to the upper end of the metal ball. The lower end of the metal ball is electrically connected to the touch detection module on the circuit board.

5. The flowerpot with a rotating function according to claim 4, characterized in that: The top of the outer casing is provided with a through hole communicating with the mounting cavity; a metal block is provided at the top of the through hole; the metal block is stepped, and the upper diameter of the metal block is larger than the lower diameter of the metal block; the lower end of the metal block is matched and locked in the through hole, thereby preventing the metal block from falling downward; a metal ball is installed in the second inner cavity that can move up and down; the upper end of the metal block abuts against the lower end of the metal ball of the conductive assembly, and the short spring can keep the metal ball with a downward tendency so that the metal ball and the metal block remain in contact; the metal block is electrically connected to the touch detection module.

6. The flowerpot with a rotating function according to claim 1, characterized in that: A control panel is also provided on the outer wall of the basin; a light sensor electrically connected to the circuit board is installed on the control panel to continuously detect changes in the light around the basin.

7. The flowerpot with a rotating function according to claim 6, characterized in that: The control panel is also equipped with a button assembly, a recording microphone, and a recording indicator light that are electrically connected to the circuit board. The button assembly includes a recording button and a power switch button that respectively cooperate with the recording microphone and the recording indicator light. When the recording button is pressed, the recording indicator light lights up, and people can record through the recording microphone. The recorded sound can then be played back through the speaker.

8. The flowerpot with a rotating function according to claim 1, characterized in that: A battery electrically connected to the circuit board and used to provide power is also provided in the mounting cavity.

9. The flowerpot with a rotating function according to claim 1, characterized in that: A first water outlet hole is provided on the bottom surface of the planting cavity, extending vertically; a second water outlet hole is provided in the embedding cavity at a position corresponding to the first water outlet hole; the second water outlet hole extends downward from the bottom surface of the embedding cavity to the bottom surface of the basin.

10. The flowerpot with a rotating function according to claim 1, characterized in that: A roller is installed at the bottom of the inner shell; the lower end of the roller abuts against the bottom surface of the embedded cavity. The roller can rotate along the moving direction of the inner shell. The roller can alleviate the impact brought by the inner shell during the movement, avoid the inner shell from directly contacting the outer shell and causing wear or jamming, and improve the stability of the structure.

Images