An ozone catalyst preparation device

Abstract

The present invention relates to the technical field of ozone catalyst production, and specifically discloses an ozone catalyst preparation device, including: an installation pipeline and a discharging member. The installation pipeline is connected to the discharging end. The discharging member includes six groups of transmission structures, six shielding belts, and six universal joint couplings. The six groups of transmission structures are all connected inside the installation pipeline. The six shielding belts are respectively drivingly connected to the six groups of transmission structures. The six shielding belts can form a discharging channel. The bottom end of the discharging end is inserted into the discharging channel. The six universal joint couplings can be connected between the six groups of transmission structures so that the six groups of transmission structures can operate synchronously, thereby driving the six shielding belts to operate synchronously. In the ozone catalyst preparation device of the present invention, by continuously changing the position of the inner wall of the discharging channel, it is possible to prevent the end of the discharging channel close to the pelletizer from being soaked by humid air for a long time, resulting in raw materials adhering to the end of the discharging channel.

Description

Technical Field

[0001] The present invention relates to the technical field of ozone catalyst production, and specifically relates to a device for preparing an ozone catalyst. Background Art

[0002] An ozone catalyst is a catalyst used to improve the efficiency of ozone oxidation. The ozone catalytic oxidation technology combines the strong oxidizing property of ozone with the adsorption and catalytic characteristics of the catalyst, and can more effectively solve the problem of incomplete degradation of organic substances. According to the morphology, ozone catalysts can be divided into two categories: homogeneous catalysts and heterogeneous catalysts. Homogeneous catalysts utilize the catalytic action of metal ions in solution, while heterogeneous catalysts use solid metals, metal oxides, or metals or metal oxides supported on carriers. Common ozone catalysts on the market are divided into categories such as ceramsite / clay, activated carbon, silicon-aluminum composite materials, and activated alumina according to different carriers. Among them, the activated alumina matrix and the catalytic component are chemically bonded, with a long service life and strong anti-pollution ability. When preparing ozone catalysts, the ozone catalysts are often made into spherical shapes for subsequent use.

[0003] A Chinese patent document with the publication number CN219334107U discloses a ball-forming machine production line for ozone catalysts, including a base platform and a steel frame platform. A ball-forming machine is arranged at the rear side of the base platform, a raw material bin is arranged above the ball-forming machine, the raw material bin penetrates through the steel frame platform, a screw feeder is installed at the lower end of the raw material bin, and the outlet end of the screw feeder extends into the ball-forming machine. A feeding machine pit is opened at the right end of the base platform, a feeding machine is arranged in the feeding machine pit, a mixer is arranged below the output port of the feeding machine, a hoist pit is arranged below the discharge pipe on one side of the mixer, a bucket elevator extending vertically upward is arranged in the hoist pit, and a screw distributor is connected to one side of the upper end of the bucket elevator, and a plurality of pneumatic valves are evenly arranged on the screw distributor.

[0004] However, the above patent still has the following deficiencies: When the screw feeder conveys raw materials into the ball-forming machine, the distance between the discharge end of the screw feeder and the feed inlet of the ball-forming machine is relatively close. When water and adhesive are subsequently conveyed into the ball-forming machine from the feed inlet of the ball-forming machine, the water content in the air at the feed inlet of the ball-forming machine is relatively high, which easily causes the discharge end of the screw feeder to be wet and adhere to raw materials, blocking the discharge end, thereby affecting the feeding of the screw feeder. Summary of the Invention

[0005] The present invention provides a device for preparing an ozone catalyst, aiming to solve the problem in the related technology that when water and adhesive are subsequently conveyed into the ball-forming machine from the feed inlet of the ball-forming machine, the water content in the air at the feed inlet of the ball-forming machine is relatively high, which easily causes the discharge end of the screw feeder to be wet and adhere to raw materials, blocking the discharge end, thereby affecting the feeding of the screw feeder.

[0006] The ozone catalyst preparation device of the present invention includes a feeding mechanism with a discharge end, and also includes an installation pipeline and a discharge member. The installation pipeline is connected to the discharge end. The discharge member includes six sets of transmission structures, six shielding belts, and six universal joint couplings. The six sets of transmission structures are all connected inside the installation pipeline. The six shielding belts are respectively drivingly connected to the six sets of transmission structures. The six shielding belts can form a discharge channel. The bottom end of the discharge end is inserted into the discharge channel. The six universal joint couplings can be connected between the six sets of transmission structures so that the six sets of transmission structures can operate synchronously, thereby driving the six shielding belts to operate synchronously.

[0007] Beneficial effects: After the feeding mechanism transports the raw materials to the discharge channel, the six sets of transmission structures and the six universal joint couplings drive the six shielding belts to operate synchronously, which can continuously change the position of the inner wall of the discharge channel to prevent the end of the discharge channel close to the pelletizer from being soaked by humid air for a long time, resulting in the adhesion and blockage of raw materials at the end of the discharge channel, thereby avoiding the influence on the feeding of the screw feeder after the raw materials adhere to the discharge channel.

[0008] Preferably, the transmission structure includes a first frame, a second frame, a driving roller, and a driven roller. The first frame and the second frame are both connected inside the installation pipeline. The driving roller is rotatably connected inside the first frame, and the driven roller is rotatably connected inside the second frame. The six shielding belts are respectively drivingly connected between the driving rollers and the driven rollers of the six sets of transmission structures. The effect is that the driving roller can rotate, thereby driving the transmission between the driving roller, the driven roller, and the shielding belt.

[0009] Preferably, the six shielding belts are all arc-shaped, and the inner diameter of the discharge channel is larger than the outer diameter of the discharge end. The effect is that the six arc-shaped shielding belts can form a discharge channel and the inner wall of the discharge channel does not contact the discharge end to avoid affecting the normal operation of the shielding belt.

[0010] Preferably, the universal joint coupling is connected to the driven rollers of adjacent two sets of transmission structures so that the driven rollers of the six sets of transmission structures can rotate synchronously. The effect is that the synchronous rotation of the driven rollers of the six sets of transmission structures can drive the six shielding belts to operate synchronously, thereby enabling the position of the inner wall of the discharge channel to change continuously.

[0011] Preferably, it further includes a cleaning mechanism for cleaning the raw materials adhering to the shielding belt.

[0012] Preferably, the cleaning mechanism includes a cleaning member and a driving member. The cleaning member is provided in six sets. The six sets of cleaning members are all connected to the bottom end of the installation pipeline, and the six sets of cleaning members can respectively clean the raw materials adhering to the six shielding belts. The driving member is connected to the installation pipeline and the six sets of cleaning members, and the driving member can drive the six sets of cleaning members one by one.

[0013] Preferably, the cleaning member includes a scraping plate, a connecting portion, a receiving portion, a pushing portion, and a first elastic portion. The scraping plate is connected to the lower end inside the installation pipe, the top of the scraping plate is in contact with the bottom of the shielding belt, the connecting portion is connected between the scraping plate and the receiving portion, the pushing portion is rotatably connected to the bottom of the scraping plate, the bottom of the pushing portion is inserted into the receiving portion, and the first elastic portion is connected between the pushing portion and the scraping plate. The effect is that the raw materials cleaned slide from the scraping plate and the pushing portion into the receiving portion, so that the raw materials gradually accumulate in the receiving portion. When the driving member passes by this set of cleaning members, it pushes the pushing portion to rotate, and the pushing portion pushes the raw materials in the receiving portion out, so that the raw materials fall into the ball forming machine. Because the raw materials accumulated in the receiving portion gather together and contain moisture, it can increase the weight of the raw materials themselves, so as to avoid the raw materials being affected by the surrounding wind after leaving the receiving portion and being unable to accurately fall into the ball forming machine.

[0014] Preferably, the driving member includes a toothed ring, a second driving source, a gear, a guiding portion, a movable portion, and a second elastic portion. The toothed ring is rotatably connected to the bottom end of the installation pipe, the second driving source is connected to the lower end outside the installation pipe, the gear is connected to the output shaft of the second driving source, the gear and the toothed ring are meshed and connected, the guiding portion is connected to the inside of the toothed ring, both the movable portion and the second elastic portion are provided in six numbers, the six movable portions are respectively inserted on the connecting portions in the six groups of cleaning members, and the six first elastic portions are respectively connected between the six movable portions and the six connecting portions.

[0015] The beneficial effects of the present invention are:

[0016] 1. After the feeding mechanism conveys the raw materials to the discharge channel, the six groups of transmission structures and the six universal joint couplings drive the six shielding belts to run synchronously, which can continuously change the position of the inner wall of the discharge channel, so as to avoid the end of the discharge channel close to the ball forming machine being soaked by humid air for a long time, resulting in raw materials adhering to the end of the discharge channel, thereby avoiding the influence on the feeding of the screw feeder after the discharge channel adheres to the raw materials.

[0017] 2. The cleaned raw materials slide from the scraping plate and the pushing portion into the receiving portion, so that the raw materials gradually accumulate in the receiving portion. When the driving member passes by this set of cleaning members, it pushes the pushing portion to rotate, and the pushing portion pushes the raw materials in the receiving portion out, so that the raw materials fall into the ball forming machine. Because the raw materials accumulated in the receiving portion gather together and contain moisture, it can increase the weight of the raw materials themselves, so as to avoid the raw materials being affected by the surrounding wind after leaving the receiving portion and being unable to accurately fall into the ball forming machine. Brief Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 is a three-dimensional structural schematic diagram of the feeding mechanism of the present invention.

[0020] Figure 3 It is a schematic perspective sectional view of the discharging mechanism of the present invention.

[0021] Figure 4 It is a schematic perspective view of the discharging member of the present invention.

[0022] Figure 5 It is another schematic perspective view of the discharging member of the present invention.

[0023] Figure 6 It is a schematic perspective view of the cleaning mechanism of the present invention.

[0024] Figure 7 It is another schematic perspective view of the cleaning mechanism of the present invention.

[0025] Figure 8 It is a schematic perspective view of the cleaning member of the present invention.

[0026] Figure 9 It is a schematic sectional view of the cleaning member of the present invention.

[0027] Reference signs:

[0028] 1, feeding mechanism; 11, feeding channel; 12, feeding end; 13, discharging end; 14, feeding member; 2, discharging mechanism; 21, installation pipe; 22, discharging member; 221, first frame; 222, second frame; 223, driving roller; 224, driven roller; 225, shielding belt; 226, universal joint coupling; 23, first driving source; 24, discharging channel; 3, cleaning mechanism; 31, cleaning member; 311, scraping plate; 312, connecting part; 313, containing part; 314, pushing part; 315, first elastic part; 32, driving member; 321, toothed ring; 322, second driving source; 323, gear; 324, guiding part; 325, movable part; 326, second elastic part. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] As Figures 1 to 9As shown in the figure, the ozone catalyst preparation device of the present invention includes a feeding mechanism 1, a discharging mechanism 2 and a cleaning mechanism 3. The feeding mechanism 1 is connected to the bottom of the raw material bin (the raw material bin is a prior art and not shown in the figure), and is used to convey the raw materials in the raw material bin into the discharging mechanism 2. The discharging mechanism 2 is connected to the feeding mechanism 1. A discharging channel 24 is provided in the discharging mechanism 2, and the discharging channel 24 is used to guide and convey the raw materials, so as to convey the raw materials into the ball forming machine (the ball forming machine is a prior art and not shown in the figure). Moreover, the position of the inner wall of the discharging channel 24 can be continuously changed to prevent the end of the discharging channel 24 close to the ball forming machine from being soaked by humid air for a long time, resulting in the adhesion and blockage of the raw materials at the end of the discharging channel 24. The cleaning mechanism 3 is connected to the discharging mechanism 2 and is used to clean the raw materials on the inner wall of the discharging channel 24.

[0031] As Figure 1 and Figure 2 shown in the figure, the feeding mechanism 1 includes a feeding channel 11, a feeding end 12, a discharging end 13 and a feeding component 14. The feeding end 12 is connected to the top left end of the feeding channel 11, and the feeding end 12 can be connected to the bottom of the raw material bin, so that the raw materials in the raw material bin enter the feeding channel 11 from the feeding end 12. The discharging end 13 is connected to the bottom right end of the feeding channel 11 and is used to convey the raw materials into the discharging mechanism 2. The feeding component 14 is connected in the feeding channel 11. The feeding component 14 includes a motor, a driving shaft and auger blades. The driving shaft is rotatably connected in the feeding channel 11, and the auger blades are connected to the outside of the driving shaft. The motor is connected to the left end of the feeding channel 11, and the output shaft of the motor is connected to the driving shaft. Starting the motor can drive the driving shaft and the auger blades to rotate, thereby conveying the raw materials.

[0032] The raw materials in the raw material bin enter the feeding channel 11 from the feeding end 12. Start the motor to drive the driving shaft and the auger blades to rotate, and drive the raw materials to the discharging end 13 through the auger blades, so that the raw materials are conveyed into the discharging mechanism 2 from the discharging end 13.

[0033] As Figure 1 、 Figures 3 to 5 shown in the figure, the discharging mechanism 2 includes a mounting pipe 21, a discharging component 22 and a driving source 1 23. The mounting pipe 21 is connected to the discharging end 13. The discharging component 22 is connected in the mounting pipe 21. The discharging component 22 can form a discharging channel 24, and guide the raw materials entering the discharging mechanism 2 through the discharging channel 24, so that the raw materials enter the ball forming machine. The driving source 1 23 is connected to the discharging component 22 and is used to drive the discharging component 22 to operate, so that the position of the inner wall of the discharging channel 24 can be continuously changed to prevent the end of the discharging channel 24 close to the ball forming machine from being soaked by humid air for a long time, resulting in the adhesion of the raw materials at the end of the discharging channel 24.

[0034] Refer to Figure 1 、Figure 3 , Figure 4 , Figure 5 As shown, the discharging member 22 includes six groups of transmission structures, six shielding belts 225 and six universal joint couplings 226. The transmission structure includes a frame 1 221, a frame 222, an active roller 223 and a driven roller 224. The frame 1 221 and the frame 222 are both connected in the installation pipe 21. The frame 1 221 is located directly above the frame 222. The active roller 223 is rotatably connected in the frame 1 221, and the driven roller 224 is rotatably connected in the frame 222. The six shielding belts 225 are respectively transmission-connected between the active rollers 223 and the driven rollers 224 on the six groups of transmission structures, and the six shielding belts 225 are all in an arc shape, so that the six shielding belts 225 form a discharging channel 24, and the inner diameter of the discharging channel 24 is large. At the outer diameter of the discharge end 13, the bottom end of the discharge end 13 is inserted into the discharge channel 24, and the universal joint coupling 226 is connected to the driven rollers 224 on the two adjacent groups of transmission structures, so that the driven rollers 224 on the six groups of transmission structures can rotate synchronously, thereby driving the six shielding belts 225 to run synchronously, and then the inner wall position of the discharge channel 24 can be continuously changed, so as to avoid the end of the discharge channel 24 close to the ball forming machine from being soaked by humid air for a long time, causing the raw materials to adhere to and clog the end of the discharge channel 24. The driving source 23 is a motor, and the driving source 23 is connected to the frame 221 in one of the groups of transmission structures, and the output shaft of the driving source 23 is connected to the active roller 223 in the group of transmission structures.

[0035] Six shielding belts 225 form a discharge channel 24. The raw materials discharged from the discharge end 13 enter the discharge channel 24, and are guided and transported into the ball forming machine by the discharge channel 24. The driving source 23 is started to drive one group of transmission structures and the shielding belts 225 on the group to transmit. At this time, the remaining five groups of transmission structures and the five shielding belts 225 are driven to run synchronously through the six universal joint couplings 226, so that the six shielding belts 225 run synchronously, thereby causing the inner wall position of the discharge channel 24 to change continuously.

[0036] like Figure 1 , Figures 6 to 9 As shown, the cleaning mechanism 3 includes cleaning pieces 31 and driving pieces 32. The cleaning pieces 31 are arranged in six groups. The six groups of cleaning pieces 31 are all connected to the bottom end of the installation pipe 21, and the six groups of cleaning pieces 31 can clean the raw materials attached to the six shielding belts 225 respectively. The driving piece 32 is connected to the installation pipe 21 and the six groups of cleaning pieces 31, and the driving piece 32 can drive the six groups of cleaning pieces 31 one by one.

[0037] Continue to refer Figure 1 , Figures 6 to 9As shown in the figure, the cleaning member 31 includes a scraping plate 311, a connecting portion 312, a containing portion 313, a pushing portion 314, and a first elastic portion 315. The scraping plate 311 is connected to the lower end inside the installation pipe 21. The top of the scraping plate 311 is in contact with the bottom of the shielding belt 225, and is used to clean the raw materials attached to the shielding belt 225. The containing portion 313 is located below the scraping plate 311. The connecting portion 312 is connected between the scraping plate 311 and the containing portion 313, and is used to support the containing portion 313. The containing portion 313 is used to contain the cleaned raw materials. The pushing portion 314 is rotatably connected to the bottom of the scraping plate 311. The bottom of the pushing portion 314 is inserted into the containing portion 313. The first elastic portion 315 is connected between the pushing portion 314 and the scraping plate 311. The first elastic portion 315 is a torsion spring and is used to drive the pushing portion 314 to reset.

[0038] The cleaned raw materials slide from the scraping plate 311 and the pushing portion 314 into the containing portion 313, so that the raw materials gradually accumulate in the containing portion 313. When the driving member 32 passes by this group of cleaning members 31, it pushes the pushing portion 314 to rotate, and the pushing portion 314 pushes out the raw materials in the containing portion 313, so that the raw materials fall into the ball forming machine. Because the raw materials accumulated in the containing portion 313 are gathered together and contain moisture, it can increase the weight of the raw materials themselves, so as to prevent the raw materials from being affected by the surrounding wind force after leaving the containing portion 313 and causing the raw materials to not accurately fall into the ball forming machine.

[0039] Continue to refer to Figure 1 、 Figures 6 to 9 As shown in the figure, the driving member 32 includes a toothed ring 321, a second driving source 322, a gear 323, a guiding portion 324, a movable portion 325, and a second elastic portion 326. The toothed ring 321 is rotatably connected to the bottom end of the installation pipe 21. The second driving source 322 is connected to the lower end outside the installation pipe 21. The second driving source 322 is a motor. The gear 323 is connected to the output shaft of the second driving source 322. The gear 323 and the toothed ring 321 are meshed and connected. The guiding portion 324 is connected to the inside of the toothed ring 321. The guiding portion 324 is inclined. Both the movable portion 325 and the second elastic portion 326 are provided with six. The six movable portions 325 are respectively inserted into the connecting portions 312 in the six groups of cleaning members 31. The six first elastic portions 315 are respectively connected between the six movable portions 325 and the six connecting portions 312. The first elastic portion 315 is a spring and is used to drive the movable portion 325 to reset. The movable portion 325 can push the pushing portion 314 to rotate, so as to push out the raw materials accumulated in the containing portion 313.

[0040] Start the driving source two 322 to drive the gear 323 to mesh with the gear ring 321 for transmission, so as to drive the guiding part 324 to move along a circular track. When the guiding part 324 passes through the movable part 325, it can push the movable part 325 away from the pushing part 314 and stretch the first elastic part 315. After the movable part 325 is separated from the guiding part 324, under the elastic force of the first elastic part 315, it drives the movable part 325 to quickly reset, and pushes the pushing part 314 to rotate, so that the pushing part 314 pushes out the raw materials accumulated in the containing part 313.

[0041] Working principle:

[0042] The raw materials in the raw material bin enter the material conveying channel 11 from the feeding end 12. Start the motor to drive the driving shaft and the auger blades to rotate, and drive the raw materials to the discharging end 13 through the auger blades, so that the raw materials are conveyed from the discharging end 13 to the discharging channel 24.

[0043] Start the driving source one 23 to drive one set of transmission structures and the shielding belt 225 on this set for transmission. At this time, drive the other five sets of transmission structures and the five shielding belts 225 to run synchronously through the six universal joint couplings 226, so that the six shielding belts 225 run synchronously, thereby continuously changing the inner wall position of the discharging channel 24.

[0044] Start the driving source two 322 to drive the gear 323 to mesh with the gear ring 321 for transmission, so as to drive the guiding part 324 to move along a circular track. When the guiding part 324 passes through the movable part 325, it can push the movable part 325 away from the pushing part 314 and stretch the first elastic part 315. After the movable part 325 is separated from the guiding part 324, under the elastic force of the first elastic part 315, it drives the movable part 325 to quickly reset, and pushes the pushing part 314 to rotate, so that the pushing part 314 pushes out the raw materials accumulated in the containing part 313, and the pushed-out raw materials fall into the ball forming machine.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An ozone catalyst preparation device, comprising a feeding mechanism, the feeding mechanism having a discharge end, characterized in that: It also includes a mounting pipe and a discharging member, wherein the mounting pipe is connected to the discharging end, and the discharging member includes six transmission structures, six shielding belts and six universal joint couplings, wherein the six transmission structures are all connected in the mounting pipe, and the six shielding belts are respectively connected to the six transmission structures in a transmission manner, and the six shielding belts can form a discharging channel, and the bottom end of the discharging end is inserted in the discharging channel, and the six universal joint couplings can be connected between the six transmission structures, so that the six transmission structures can run synchronously, thereby driving the six shielding belts to run synchronously; The transmission structure includes a frame body 1, a frame body 2, a driving roller and a driven roller. The frame body 1 and the frame body 2 are both connected in the installation pipeline. The driving roller is rotatably connected in the frame body 1, and the driven roller is rotatably connected in the frame body 2. The six shielding belts are respectively connected between the driving rollers and the driven rollers on the six groups of transmission structures. The six shielding bands are all in arc shape, and the inner diameter of the discharge channel is larger than the outer diameter of the discharge end; It also includes a cleaning mechanism for cleaning the raw materials attached to the masking belt; The cleaning mechanism includes cleaning parts and driving parts. The cleaning parts are arranged in six groups. The six groups of cleaning parts are all connected to the bottom end of the installation pipe, and the six groups of cleaning parts can clean the raw materials attached to the six shielding belts respectively. The driving part is connected to the installation pipe and the six groups of cleaning parts, and the driving part can drive the six groups of cleaning parts one by one.

2. The ozone catalyst production device according to claim 1, characterized in that: The universal joint coupling is connected to the driven rollers on two adjacent groups of transmission structures so that the driven rollers on the six groups of transmission structures can rotate synchronously.

3. The ozone catalyst production device according to claim 1, characterized in that: The cleaning part includes a scraper, a connecting part, a containing part, a pushing part and an elastic part. The scraper is connected to the inner lower end of the installation pipe, the top of the scraper is in contact with the bottom of the shielding belt, the connecting part is connected between the scraper and the containing part, the pushing part is rotatably connected to the bottom of the scraper, the bottom of the pushing part is inserted in the containing part, and the elastic part is connected between the pushing part and the scraper.

4. The ozone catalyst production device according to claim 1, characterized in that: The driving member includes a gear ring, a second driving source, a gear, a guide part, a movable part and a second elastic part. The gear ring is rotatably connected to the bottom end of the installation pipe, the second driving source is connected to the lower end of the outer side of the installation pipe, the gear is connected to the output shaft of the second driving source, the gear and the gear ring are meshed and connected, the guide part is connected to the inner side of the gear ring, the movable part and the second elastic part are each set to six, the six movable parts are respectively inserted into the connecting parts in the six groups of cleaning parts, and the six elastic parts are respectively connected between the six movable parts and the six connecting parts.

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