A smart toilet with a smart cover plate base bottom ceramic easy to clean
By incorporating a lifting mechanism into the ceramic flushing smart toilet, which uses hinges and a motor-driven screw or hook unit to lift the lid, the problem of cleaning the bottom of the smart toilet seat base is solved, enabling a convenient cleaning process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BESTTER XIAMEN TECH
- Filing Date
- 2022-06-06
- Publication Date
- 2026-06-09
AI Technical Summary
The base of the existing ceramic flushing smart toilet seat is difficult to clean, requiring the entire seat to be removed, making the installation and removal process cumbersome.
A lifting mechanism is set between the ceramic body and the smart cover base. The cover is lifted by hinge pivot and motor-driven screw or hook unit, which makes it easy to clean the gap between the bottom of the base and the ceramic body.
It enables convenient cleaning of the bottom of the smart cover base, simplifies the disassembly process, and improves cleaning efficiency.
Smart Images

Figure CN115559396B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a smart toilet with an easy-to-clean smart toilet seat base ceramic bottom. Background Technology
[0002] Existing ceramic flushing smart toilets consist of a ceramic body and a smart seat. The smart seat includes a top cover, a seat ring, a body assembly, and a base. The body assembly houses various functional units, such as a flushing nozzle and a drying unit. The top cover and seat ring are pivotally connected to the body assembly, which is mounted on the base, which in turn is mounted on the ceramic body. Smart toilets tend to get dirty easily after daily use, thus requiring regular cleaning. In existing designs, the exposed parts of the ceramic body, seat ring, and top cover are relatively easy to clean. However, the area where the smart seat base meets the upper surface of the ceramic body is not easy to clean. Cleaning this area requires removing the entire smart seat, which is cumbersome. Summary of the Invention
[0003] The main objective of this invention is to provide a smart toilet with an easy-to-clean ceramic base for the smart toilet seat.
[0004] The technical solution adopted by this invention to solve its technical problem is:
[0005] A smart toilet with an easy-to-clean smart toilet seat base ceramic, comprising a ceramic body and a smart toilet seat, including a seat ring, a top cover, a body assembly, and a base; wherein, the rear end of the smart toilet seat base is pivotally connected to the rear end of the ceramic body, and a lifting mechanism is provided between the ceramic body and the bottom of the smart toilet seat base to lift the smart toilet seat, so that the smart toilet seat can rotate relative to the ceramic body about the pivot axis between the rear end of the base and the rear end of the ceramic body.
[0006] In this invention, the pivoting method may include one or more hinges, hinges, etc.
[0007] Preferably, the pivot connection is as follows: a hinge is provided at the rear end of the smart toilet, one leaf of which is fixed to the rear end of the ceramic body, and the other leaf is fixed to the rear end of the smart toilet seat base, so that the smart toilet seat can rotate relative to the ceramic body about the hinge axis.
[0008] Preferably, the lifting mechanism is located in the middle or near the front end of the smart cover base. More preferably, it is located in the middle-front end.
[0009] In one embodiment, the lifting mechanism includes a lifting base and a housing disposed on the lifting base. A lead screw is vertically inserted into the lifting base and is driven by a motor to move up and down. Preferably, the housing is fastened to the lifting base.
[0010] In one embodiment, the motor is located inside the lifting base on one side. The motor output shaft is fixedly connected to the first bevel gear, and the first bevel gear and the second bevel gear mesh. The second bevel gear is sleeved on the outside of the lead screw, and the second bevel gear and the lead screw are screw-fitted. The upper and lower ends of the second bevel gear are respectively provided with rotating shafts, and a bearing is sleeved on each rotating shaft. The clamping cover presses the two bearings and the second bevel gear between the lower surface of the clamping cover and the inside of the lifting base. Thus, the second bevel gear can only rotate around its own axis and cannot move up and down.
[0011] In one embodiment, the lifting base is provided with a rectangular guide groove, and the lower end of the lead screw is provided with a corresponding trapezoidal platform, so that the lead screw can only move up and down relative to the guide groove and cannot rotate.
[0012] In one embodiment, the upper end of the lead screw is movably connected to a top plate; wherein the top plate includes a horizontal plate, and the bottom left and right sides of the horizontal plate are respectively provided with first extension plates in the front-to-back direction, each of the first extension plates being provided with a lower through hole; the top middle of the horizontal plate is provided with a second extension plate in the left-to-right direction, the second extension plate being provided with an upper through hole; wherein the upper end of the lead screw is inserted between the two first extension plates, and a bolt passes through the lower through hole on one side, then through the insertion hole at the upper end of the lead screw, and then out through the lower through hole on the other side, thereby connecting the upper end of the lead screw to the top plate.
[0013] In one embodiment, a first through hole and a second through hole are provided on the base at intervals, and an upward-facing column is provided next to the first through hole; a hook is provided between the first through hole and the second through hole; the hook is elongated, with one end extending downward to provide a hook and the other end being a latch, and an upward-facing column is provided on the upper surface of the hook on the side with the latch, and the column is provided with a tension spring fixing groove.
[0014] The second extension plate on the top plate passes upward through the first through hole, and the latch of the hook passes through the upper through hole of the second extension plate, while the other end of the hook is hooked into the second through hole; one end of a tension spring is hooked onto the upright of the hook, and the other end is hooked onto the upright.
[0015] In another embodiment, the lifting mechanism includes a motor, a mounting frame, bearings, a lead screw, a slide, a housing, and a lifting rod. The mounting frame is an inverted "V" shape, with the housing located in the middle of the mounting frame. The motor is located on the lower surface of the mounting frame, and its output shaft passes through the bottom plate of the mounting frame from bottom to top. The output shaft of the motor and the lower end of the lead screw are fixed to form a synchronous rotational connection. The lead screw is sleeved onto the slide, and the lifting rod is a hollow column with an open bottom, sleeved onto the upper end of the lead screw. The slide and the lead screw are screwed together, and the lower end of the lifting rod is simultaneously sleeved onto the upper half of the slide, with the two fixedly connected. The inner cavity of the lifting rod is without a helix. The outer surface of the lifting rod is provided with axial guide ribs, forming a connection with the top opening of the housing that allows only vertical movement and prevents rotation.
[0016] In another embodiment, a hook unit is provided between the base and the ceramic body, the hook unit including a drive mechanism and a pull rope mechanism;
[0017] The drive mechanism includes a motor, a motor bracket, a gear, a rack and pinion rod, and a return spring. The motor's drive shaft is inserted into the shaft of the gear, forming a synchronous rotational connection. The rack and pinion rod has a toothed portion and a pull rod portion, with the toothed portion meshing with the gear. The cable pulling mechanism includes a cable reel box, one end of which has two cable pulls. Each cable pull is connected to a telescopic buckle at its end. Each telescopic buckle includes a body with a latch that can extend or retract relative to the body. The other end of the cable pulls has a manual control cable and an automatic control cable. The other end of the automatic control cable is connected to a cable box, which has a cover. The end of the gear pull rod also enters the cable box, and the gear pull rod can drive a wrench inside the cable box, thereby tightening or loosening the automatic control cable relative to the cable box. The latch of the telescopic buckle can extend into or disengage from the fixing plate of the ceramic body, thereby fixing or disengaging the base plate relative to the fixing plate.
[0018] Compared with the prior art, this technical solution has the following advantages:
[0019] 1. The rear end of the base of the smart cover plate of the present invention is pivotally connected to the rear end of the ceramic body. A lifting mechanism is provided between the ceramic body and the bottom ceramic of the smart cover plate base, which can lift the base. Thus, when the lifting mechanism is lifted, the smart cover plate can be flipped upward to form an angle, which facilitates the rinsing of dirt accumulated between the bottom of the smart cover plate base and the ceramic body.
[0020] 2. This invention provides two lifting mechanisms, both of which can be controlled by a motor for lifting.
[0021] 3. This invention provides two snap-fit structures for fixing the base and the ceramic body, which helps to stabilize the position between the base and the ceramic body. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a three-dimensional schematic diagram of the smart toilet with an easy-to-clean smart toilet seat base ceramic bottom, as shown in Example 1.
[0024] Figure 2 for Figure 1 Side view.
[0025] Figure 3 This is a schematic diagram of the exploded structure of Example 1.
[0026] Figure 4 This is a cross-sectional structural diagram of Example 1.
[0027] Figure 5for Figure 4 A magnified view of a portion of point A in the middle.
[0028] Figure 6 for Figure 4 A magnified view of point B in the middle.
[0029] Figure 7 This is a three-dimensional structural diagram of the lifting mechanism in Example 1.
[0030] Figure 8 This is a cross-sectional structural schematic diagram of the lifting mechanism in Example 1.
[0031] Figure 9 This is a schematic diagram of the exploded structure of the lifting mechanism in Example 1.
[0032] Figure 10 This is a three-dimensional structural diagram of the top plate in the lifting mechanism of Example 1.
[0033] Figure 11 This is a schematic diagram of the hook structure in Example 1.
[0034] Figure 12 This is a schematic diagram of the tension spring in Example 1.
[0035] Figure 13 This is a top view of the lifting base in Embodiment 1.
[0036] Figure 14 This is a schematic diagram of the lead screw in Example 1.
[0037] Figure 15 This is an exploded structural diagram of the smart cover plate in Example 1.
[0038] Figure 16 This is a schematic diagram of the exploded structure of Example 2.
[0039] Figure 17 This is a three-dimensional structural diagram of the ceramic body in Example 2.
[0040] Figure 18 This is a three-dimensional structural diagram of the lifting mechanism in Example 2.
[0041] Figure 19 This is the second schematic diagram of the explosive structure of the lifting mechanism in Example 2.
[0042] Figure 20 This is a combined cross-sectional view of the lifting mechanism in Example 2.
[0043] Figure 21 This is a schematic diagram of the drive mechanism of the hook unit in Example 2.
[0044] Figure 22 This is a schematic diagram of the structure of several components in Example 2.
[0045] Figure 23 This is a schematic diagram of the rope pulling mechanism of the hook unit in Example 2.
[0046] Figure 24 A schematic diagram of the upper surface structure after the hook unit has been installed on the base.
[0047] Figure 25 A schematic diagram of the lower surface structure after the hook unit has been installed on the base.
[0048] Figure 26 This is a side view of a smart toilet.
[0049] Figure 27 for Figure 26 A cross-sectional view along the AA direction. Detailed Implementation
[0050] Example 1
[0051] Please refer to Figures 1 to 6 as well as Figure 15 A smart toilet with an easy-to-clean ceramic base for the smart toilet seat includes a ceramic body 100 and a smart toilet seat 200. The smart toilet seat 200 includes an upper cover 220, a seat ring 230, a body assembly 210, and a base 400. The body assembly is equipped with various functional units, such as a flushing nozzle and a drying unit. The upper cover 220 and the seat ring 230 are pivotally connected to the body assembly 210, which is mounted on the base 400, which is installed on the upper rear half of the ceramic body 100. A hinge 500 is located at the rear end of the smart toilet. One leaf of the hinge 500 is fixed to the rear end of the ceramic body 100, and the other leaf is fixed to the rear end of the base 400. This allows the smart toilet seat 200 to rotate relative to the ceramic body 100 about the hinge 500's axis 510. A decorative cover 520 is used to decorate the area behind the hinge.
[0052] The ceramic body 100 is provided with a lifting mechanism 300 for lifting the base 400.
[0053] See Figures 7 to 10The lifting mechanism 300 includes a lifting base 310 and a housing 390 that interlock. A lead screw 370 is vertically inserted into the lifting base 310 and is driven by a motor. Specifically, a DC motor 320 is located inside the lifting base 310 and its lifting position is limited by a micro switch 321. The output shaft of the DC motor 320 is fixedly connected to a first bevel gear 330, which meshes with a second bevel gear 350. The second bevel gear 350 is sleeved on the lead screw 370, and the second bevel gear 350 and the lead screw 370 are connected by a transmission thread. The upper and lower ends of the second bevel gear 350 are respectively provided with rotating shafts, and a bearing 340 is sleeved on each rotating shaft. A clamping cover 360 presses the two bearings 340 and the second bevel gear 350 between the lower surface of the clamping cover and the interior of the lifting base. Thus, the second bevel gear 350 can only rotate around its own axis and cannot move up and down.
[0054] See Figure 13 and Figure 14 The lifting base 310 is provided with a rectangular guide groove 311, and the lower end of the lead screw 370 is provided with a corresponding trapezoidal platform, so that the lead screw 370 can only move up and down relative to the guide groove 110 and cannot rotate. When the DC motor 320 is working, it drives the first bevel gear 330 to rotate, thereby driving the second bevel gear 350 meshing with the first bevel gear 330 to rotate, and then driving the lead screw in the second bevel gear 350 to move up and down.
[0055] The upper end of the lead screw 370 is connected to a top plate 380. The upper end of the lead screw 370 has a socket 371. (See also...) Figure 9 The top plate 380 includes a horizontal plate 381. The bottom left and right sides of the horizontal plate 381 are respectively provided with first extension plates 382 in the front-to-back direction. Each first extension plate 382 has a downward through hole 383. The top center of the horizontal plate 381 is provided with a second extension plate 384 in the left-to-right direction, and the second extension plate 384 has an upward through hole 385. The upper end of the lead screw 370 is inserted between the two first extension plates 382. The bolt 381 passes through the downward through hole 383 on one side, then through the insertion hole 371 at the upper end of the lead screw 370, and then exits through the downward through hole 383 on the other side, thus connecting the upper end of the lead screw to the top plate 380. The upward through hole 385 and the downward through hole 383 are both horizontally extending elongated shapes, thus providing a front-to-back and left-to-right tolerance zone between the lead screw and the top plate, thereby overcoming the inevitable deformation of the ceramic body during firing.
[0056] The base 400 has a first through hole 401 and a second through hole 402 spaced apart, and an upward-facing post 403 is provided next to the first through hole 401. A hook 410 is provided between the first through hole 401 and the second through hole 402. See also Figure 11The hook is long and narrow, with one end extending downward to form a hook 411 and the other end forming a latch 414. The upper surface of the hook on the side with the latch 414 has an upward-facing post 412, and the post 412 has a tension spring fixing groove 413.
[0057] See Figure 6 The second extension plate 384 on the top plate 380 passes upward through the first through hole 401. The latch 414 of the hook 410 passes through the upper through hole 385 of the second extension plate 384, and the hook 411 at the other end hooks into the second through hole 402. A tension spring 420 ( Figure 12 One end of the hook is hooked onto the post 412 of the pull hook, and the other end is hooked onto the post 403.
[0058] The invention is used as follows:
[0059] Pressing the remote control button activates the DC motor 320, driving the lead screw 370 upwards, which in turn lifts the base 400 (the lifting position can be set in the middle or near the front of the base 400). The base 400 then rotates around a hinge. After lifting approximately 15 degrees, microswitch 321 is triggered, stopping the lifting. At this point, the gap between the smart cover's base and the ceramic body can be cleaned. Once cleaning is complete, the DC motor 320 reverses direction, driving the lead screw 370 downwards, resetting the base 400, and triggering another microswitch to stop the downward movement.
[0060] The hook is normally attached to the top plate 380. When disassembly is required, the hook can be manually detached from the top plate 380 from the base, thereby quickly separating the base from the lifting mechanism.
[0061] Example 2
[0062] Please refer to Figure 16 and Figure 17 Similar to Embodiment 1, this embodiment describes a smart toilet with an easily cleanable ceramic base for the smart toilet seat. It includes a ceramic body 100 and a smart toilet seat 200. The smart toilet seat 200 includes an upper cover 220, a seat ring 230, a body assembly 210, and a base 400. The body assembly is equipped with various functional units, such as a flushing nozzle and a drying unit. The upper cover 220 and the seat ring 230 are pivotally connected to the body assembly 210, which is mounted on the base 400. The base 400 is located on the upper surface of the rear half of the ceramic body 100. A hinge 500 is located at the rear end of the smart toilet. One leaf of the hinge 500 is fixed to the rear end of the ceramic body 100, and the other leaf is fixed to the rear end of the base 210. This allows the smart toilet seat 200 to rotate relative to the ceramic body 100 about the hinge 500's axis 510. A decorative cover 520 is used to decorate the rear of the hinge.
[0063] Preferably, the angle between the bottom of the base 400 of the smart cover and the ceramic body 100 is between 0 and 15 degrees when it is open or closed.
[0064] The rear end of the ceramic body 100 is provided with a hinge mounting hole 120. The middle and rear portion is provided with two lifting mechanism mounting posts 130, each with a mounting hole. The two lifting mechanism mounting posts 130 are equipped with a lifting mechanism 800 for lifting the base 400.
[0065] See Figures 17 to 19 The lifting mechanism 800 includes a motor 810, a mounting bracket 820, a sealing gasket 830, a bearing 840, a lead screw 850, a slide 860, a housing 870, a lifting rod 880, and a waterproof sleeve 890. The mounting bracket 820 is an inverted "V" shape. The housing 870 is located in the middle of the mounting bracket 810. The motor 810 is located on the lower surface of the mounting bracket 810, and its output shaft passes through the bottom plate of the mounting bracket 810 from bottom to top. The output shaft of the motor 820 is fixed to the lower end of the lead screw 850, forming a synchronous rotational connection. The lead screw 870 is sleeved on the slide 860, and the lifting rod 880 is a hollow column with an open bottom, sleeved on the upper end of the lead screw 870. The slide 860 is threaded to the lead screw, while the lower end of the lifting rod 880 is simultaneously sleeved on the upper half of the slide; the two are fixed by screws. The inner cavity of the lifting rod 880 is unthreaded. The lifting rod 880 has axial guide ribs on its exterior, forming a connection with the top opening of the housing 870 that allows only vertical movement but not rotation. Therefore, when the motor 810 operates, it drives the lead screw 370 to rotate, which in turn drives the lifting rod 880 and the slide table 860 to move upwards or downwards. The top of the lifting rod 880 can be located in the middle of the base 400 or near the front end.
[0066] See Figures 20 to 26 A hook unit is provided between the base 400 and the ceramic body 100, and the hook unit includes a drive mechanism 600 and a rope pulling mechanism 700.
[0067] The drive mechanism 600 includes a motor 610, a motor bracket 620, a gear 630, a rack and pinion rod 640, and a return spring 650. The drive shaft 611 of the motor 610 is inserted into the shaft of the gear 630, forming a synchronous rotational connection. The rack and pinion rod 640 has a toothed portion 641 and a connecting rod portion 642, with the toothed portion 641 meshing with the gear 630. When the motor 610 operates, it drives the gear 630 to rotate, thereby causing the rack and pinion rod 640 to move.
[0068] The cable pulling mechanism 700 includes a cable reel 710. One end of the cable reel 710 has two cable pulls 740, each cable end connected to a telescopic buckle 750. Each telescopic buckle 750 includes a body with a latch 751 that can extend or retract relative to the body. The other end of the cable pulls 740 has a manual control cable 760 and an automatic control cable 770. The other end of the automatic control cable 770 is connected to a cable box 730, which has a cover 720. The end of a gear lever 640 also enters the cable box 730. The gear lever 640 can drive a wrench inside the cable box, thereby tightening or loosening the automatic control cable 770 relative to the cable box 730.
[0069] See Figure 25 and Figure 26 The latch 751 of the telescopic buckle 750 can extend into or out of the fixing plate 140 of the ceramic body, thereby fixing or disengaging the base plate 400 relative to the fixing plate 140 on the ceramic body.
[0070] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.
Claims
1. A smart toilet with an easily cleanable ceramic base for the smart toilet seat, comprising a ceramic body and a smart toilet seat, wherein the smart toilet seat includes a seat ring, a top cover, a body assembly, and a base; characterized in that: The rear end of the smart toilet seat base is pivotally connected to the rear end of the ceramic body. A lifting mechanism is provided between the bottom of the ceramic body and the smart toilet seat base to lift the base, so that the smart toilet seat can rotate relative to the ceramic body about the pivot axis between the rear end of the base and the rear end of the ceramic body. The pivot connection is as follows: a hinge is provided at the rear end of the toilet, one leaf of which is fixed to the rear end of the ceramic body, and the other leaf is fixed to the rear end of the smart toilet seat base. The lifting mechanism is located in the middle of the smart toilet seat base or near the front end.
2. The smart toilet with an easy-to-clean smart toilet seat base ceramic bottom as described in claim 1, characterized in that: The lifting mechanism includes a lifting base and a housing mounted on the lifting base. A lead screw is vertically inserted into the lifting base and is driven by a motor to move up and down.
3. The smart toilet with an easy-to-clean smart toilet seat base ceramic bottom as described in claim 2, characterized in that: The motor is located inside the lifting base on one side. The motor output shaft is fixedly connected to the first bevel gear. The first bevel gear and the second bevel gear mesh. The second bevel gear is sleeved on the outside of the lead screw. The second bevel gear and the lead screw are screwed together. The upper and lower ends of the second bevel gear are respectively provided with rotating shafts, and a bearing is sleeved on each rotating shaft. The clamping cover presses the two bearings and the second bevel gear between the lower surface of the clamping cover and the inside of the lifting base. Thus, the second bevel gear can only rotate around its own axis and cannot move up and down.
4. The smart toilet with an easy-to-clean smart toilet seat base ceramic bottom as described in claim 3, characterized in that: The ceramic body has a rectangular guide groove, and the lower end of the lead screw has a corresponding guide part. The lead screw can only move up and down relative to the guide groove and cannot rotate.
5. A smart toilet with an easily cleanable smart toilet seat base ceramic bottom as described in claim 2, characterized in that: The upper end of the lead screw is movably connected to a top plate; wherein the top plate includes a horizontal plate, and the bottom left and right sides of the horizontal plate are respectively provided with first extension plates in the front-to-back direction, each of the first extension plates having a lower through hole; the top middle of the horizontal plate is provided with a second extension plate in the left-to-right direction, the second extension plate having an upper through hole; wherein the upper end of the lead screw is inserted between the two first extension plates, and the bolt passes through the lower through hole on one side, then through the insertion hole at the upper end of the lead screw, and then out through the lower through hole on the other side, thereby connecting the upper end of the lead screw to the top plate.
6. A smart toilet with an easily cleanable smart toilet seat base ceramic bottom as described in claim 5, characterized in that: The base has a first and second perforation spaced apart, and an upward-facing column is provided next to the first perforation; a hook is provided between the first and second perforations; the hook is long and narrow, with one end extending downward to provide a hook and the other end being a latch; the upper surface of the hook on the side with the latch is provided with an upward-facing column, and the column is provided with a tension spring fixing groove. The second extension plate on the top plate passes upward through the first through hole, and the latch of the hook passes through the upper through hole of the second extension plate, while the other end of the hook is hooked into the second through hole; one end of a tension spring is hooked onto the upright of the hook, and the other end is hooked onto the upright.
7. A smart toilet with an easily cleanable smart toilet seat base ceramic bottom as described in claim 1, characterized in that: The described lifting mechanism includes a motor, a mounting frame, a bearing, a screw rod, a sliding table, a housing, and a jacking rod; among them, the mounting frame is in an inverted "U" shape, the housing is arranged in the middle of the mounting frame, the motor is arranged on the lower surface of the mounting frame and the output shaft passes through the bottom plate of the mounting frame from bottom to top; the output shaft of the motor and the lower end of the screw rod are fixed to form a synchronous rotation connection relationship; the screw rod is sleeved with the sliding table, the jacking rod is a hollow column with an open bottom, and it is sleeved on the upper end of the screw rod; the sliding table and the screw rod are in a spiral fit, and the lower end of the jacking rod is simultaneously sleeved on the upper half of the sliding table, and the two are fixedly connected; the inner cavity of the jacking rod has no spiral; the outer part of the jacking rod is provided with axial guide ribs, and a connection relationship that can only move up and down and cannot rotate is formed between the guide ribs and the top opening of the housing.
8. A smart toilet with an easily cleanable ceramic base for the smart toilet seat as described in claim 7, characterized in that: A hook unit is provided between the base and the ceramic body, and the described hook unit includes a driving mechanism and a pulling rope mechanism; Among them, the driving mechanism includes a motor, a motor bracket, a gear, a rack pull rod, and a return spring; the driving shaft of the motor is inserted into the center of the gear to form a synchronous rotation connection relationship; the rack pull rod has a tooth part and a pull rod part, and the tooth part meshes with the gear; the pulling rope mechanism includes a wire winding box, one end of the wire winding box has two pulling ropes, each end of the pulling rope is respectively connected to a telescopic buckle, each telescopic buckle includes a body, and a tongue that can extend or retract relative to the body is arranged in the body; the other end of the pulling rope is provided with a manual control rope and an automatic control rope, the other end of the automatic control rope is connected to a wire pulling box, and the wire pulling box has a box cover; the end of the gear pull rod also enters the wire pulling box, and the gear pull rod can drive a wrench arranged in the wire pulling box, so that the automatic control rope is tightened or relaxed relative to the wire pulling box; the tongue of the telescopic buckle can extend into or脱离下方 the fixing plate of the ceramic body, so that the bottom plate is fixed to or separated from the fixing plate.