JP2020175138A - Tablecloth maintained automatically - Google Patents

Abstract

To disclose a self-maintaining tablecloth.SOLUTION: A tablecloth comprises a table. A collection chamber whose left and right end walls are communicated to an external space is provided in the table. A drive mechanism is provided in the collection chamber. The drive mechanism comprises a drive motor, plug and socket. When the plug is inserted into the socket, the drive motor can be driven and actuated, and thereby the entire device is operated. The drive mechanism also comprises a fan gear, a moving gear and a movable block. A maintenance mechanism is provided on the right side of the drive mechanism. The maintenance mechanism and the drive mechanism are transmitted so as to be rubbed by a horizontal belt.SELECTED DRAWING: Figure 1

Description

The present invention takes up the field of tablecloths, specifically self-maintaining tablecloths.

The tablecloth is a table surface protection tool that protects the surface of the table and prevents it from getting dirty or scratched, and the tablecloth also has a decorative effect, so the maintenance of the existing tablecloth needs to be artificially maintained. , It is inconvenient to replace and clean.

Chinese Patent Application Publication No. 107007095

An object of the present invention provides a self-maintaining tablecloth, which can solve the problems in the current art described above.

To solve the above problems, the present invention employs the following technical plan: the self-maintaining table cloth of the present invention includes a table, in which the left and right end walls communicate with the external space. A chamber is installed, a drive mechanism is installed in the collection chamber, the drive mechanism includes a drive motor, a plug and an outlet, and drives and operates the drive motor when the plug is inserted into the outlet. The drive mechanism also includes a fan-shaped gear, a moving gear and a moving block, and a maintenance mechanism is installed on the right side of the drive mechanism, and the maintenance mechanism and the drive are operated. The mechanism is transmitted so as to rub against the horizontal belt, the inside of the maintenance mechanism is transmitted so as to rub against the diagonal belt, the maintenance mechanism includes a cam, the cam rotates, and the plug is pushed out from the outlet. A cloth exchange mechanism is installed on the left side of the drive mechanism, and the cloth exchange mechanism includes a hollow gear, a triangular block, and a limiting groove, the fan-shaped gear can mesh with the hollow gear, and the triangular block is the said. When disengaged from the limiting groove, the moving gear is interlocked and moved to the right to disengage from the meshing of the fan-shaped gear, and the cloth changing mechanism also includes a feed wheel, a transmission ring and a table cloth, and the feed wheel and the said. The table cloth can be motion-interlocked by rotation with the transmission wheel, and when the triangular block is located in the limiting groove, the fan-shaped gear can interlock the feed wheel and rotate intermittently.

Preferentially, the drive mechanism includes a fan-shaped gear, a support plate is fixedly connected to the lower end surface of the table, and a drive motor is fixedly connected to the rear end surface of the support plate. A drive shaft is rotatably connected to the rear end surface, a fan-shaped gear is fixedly connected to the drive shaft, and two magnetic grooves are symmetrically installed in the rear end surface of the support plate. An electric magnet is fixedly connected to the front end wall of the magnetic groove, an iron block is connected so as to slide in the magnetic groove, and a magnetic rod is fixedly connected to the rear end surface of the iron block. The rear ends of the magnetic rods are connected, penetrate the rear end wall of the magnetic groove, and are located in the external space, and the plugs are fixedly connected to the rear ends of the two magnetic rods. The plug and the drive motor are communicated with each other by an electric wire, an outlet is installed between the two magnetic rods, and the outlet and the rear end surface of the support plate are fixedly connected to each other in the table. Is provided with a moving groove whose lower end wall communicates with the external space, a moving spring is fixedly connected to the left end wall of the moving groove, and a moving spring is connected to the right end of the moving spring so as to slide with the moving groove. The moving blocks to be moved are fixedly connected, the lower end of the moving block penetrates the lower end wall of the moving groove and is located in the external space, and the moving shaft is attached to the front end surface of the moving block in the external space. Is rotatably connected, a moving gear that meshes with the fan-shaped gear is fixedly connected to the moving shaft, and a moving pulley that is fixedly connected to the moving shaft is installed on the front side of the moving gear. To.

Preferentially, the cloth exchange mechanism includes a hollow gear, a movement groove in which the lower end wall communicates with the external space is installed in the left end wall of the movement groove, and a movement block is installed in the movement groove. Are connected so that they can slide, the lower end of the movement block penetrates the lower end wall of the movement groove, and is located in the external space, and two squares are formed on the front end surface of the movement block in the external space. The blocks are fixedly connected vertically symmetrically, the adjusting shaft is connected so as to be rotatable between the two square blocks, and the diagonal rod is fixedly connected to the adjusting shaft, and the left end of the moving block is connected. Two thin plates are symmetrically and fixedly connected vertically to the surface, and a rotating shaft is connected so as to be rotatable between the two thin plates, and the rotating shaft and the right end of the diagonal rod are fixedly connected. A limiting shaft that is connected and connected to the rear end surface of the support plate so as to be rotatable is installed on the left side of the drive motor, and a hollow gear is connected to the limiting shaft so that it can rotate, and is rear of the hollow gear. A bidirectional gear fixedly connected to the limiting shaft is installed on the side, an annular groove is installed in the hollow gear, and a lower end wall communicates with the annular groove in the upper end wall of the annular groove. A telescopic groove is installed, and a telescopic groove whose upper end wall communicates with the annular groove is installed in the upper end surface of the limiting shaft among the annular grooves, and a telescopic spring is installed on the lower end wall of the telescopic groove. Is fixedly connected to the upper end of the telescopic spring, and a triangular block connected so as to slide with the telescopic groove is fixedly connected, and the upper end of the triangular block is fixedly connected to the upper end wall of the telescopic groove and the limiting groove. A square groove is installed in the rear end surface of the limiting shaft, which penetrates the lower end wall of the frame and is located in the limiting groove, and the rear end wall communicates with the external space. Inside the left and right end walls, pressure grooves that are close to the end walls of the square groove and that communicate with the square grooves are symmetrically installed, and pressure springs are installed on the front end wall of the right side pressure groove. A pressure block that is fixedly connected and is connected to the rear end of the pressure spring so as to slide with the pressure groove is fixedly connected, and the left end of the pressure block penetrates the left end wall of the pressure groove. Moreover, it is located in the square groove, and the drawstring block is fixedly connected between the two pressure blocks, and the front end of the drawstring block and the lower end of the triangular block are fixed by a rope. A localization plate is fixedly connected to the lower end surface of the table, and a feed shaft is connected to the front end surface of the localization plate so that the feed shaft can rotate. A feed wheel is fixedly connected to the feed shaft, and a feed gear that is fixedly connected to the feed shaft is installed on the front side of the feed wheel, and the feed gear and the hollow gear are meshed with each other. A transmission plate is fixedly connected to the right side of the lower end surface of the table, a transmission shaft is fixedly connected to the front end surface of the transmission plate so that the transmission shaft can rotate, and a transmission ring is fixedly connected to the transmission shaft. A table cloth is installed on the table, and the table cloth is transmitted to the feed ring by the transmission ring.

Preferentially, the maintenance mechanism includes a maintenance wheel, a hollow block is fixedly connected to the center of the lower end surface of the table, and left and right end walls communicate with an external space in the hollow block. A collection chamber is installed, a table pedestal is fixedly connected to the lower end surface of the hollow block, a pulley shaft is connected to the rear end wall of the collection chamber so that the pulley shaft can rotate, and an output pulley is connected to the pulley shaft. It is fixedly connected, the output pulley and the moving pulley are transmitted so as to rub against each other by a horizontal belt, and a maintenance wheel fixedly connected to the pulley shaft is installed on the front side of the output pulley to collect the above. An elevating groove is installed in the upper end wall of the chamber so that the lower end wall communicates with the collection chamber, an elevating spring is fixedly connected to the upper end wall of the elevating groove, and the elevating spring is fixedly connected to the lower end of the elevating spring. An elevating rod that is slidably connected to the elevating groove is fixedly connected, and the lower end of the elevating rod penetrates the lower end wall of the elevating groove and is located in the collecting chamber. A horizontal rod is fixedly connected to the lower end of the elevating rod, and a power shaft connected to the rear end wall of the collection chamber is installed on the left side of the horizontal rod so that the right end is connected to the power shaft. An elevating gear that meshes with the left end of the horizontal rod is fixedly connected, an elevating pulley that is fixedly connected to the power shaft is installed on the rear side of the elevating gear, and the support is on the right side of the magnetic rod. A return shaft that is rotatably connected to the rear end surface of the plate is installed, a cam is fixedly connected to the return shaft, and a return pulley is fixedly connected to the rear end of the return shaft. The pulley and the elevating pulley are transmitted so as to rub against each other by the diagonal belt.

The beneficial effect of the present invention is: The device of the present invention designs an annular belt type tablecloth, has a double-sided tablecloth, and automatically cleans the dirty side tablecloth when the user tries to replace it. The table cloth can be replaced quickly, which is advantageous for the development of subsequent work, and the dirty surface is automatically cleaned and maintained, making it convenient for the next use and the surface of the table. The table cannot be replaced by pressing the switch of the device when there is something on the table, avoiding accidental damage to the table surface, the device uses only one power source, is highly automated, and is easy to use. It is convenient.

In order to explain the present invention in detail with reference to FIGS. 1 to 3 below and to explain the present invention in a convenient manner, the following directions are defined as follows: FIG. 1 is a front view of the apparatus of the present invention, and is described above and below. The left-right front-back direction and the up-down, left-right front-back direction of the self-projection relationship in FIG. 1 are the same.

FIG. 1 is a schematic front view of the entire cross section of the self-maintaining tablecloth of the present invention. FIG. 2 is a schematic cross-sectional structure of the upper surface of the drive shaft of the self-maintaining table cloth of the present invention. FIG. 3 is a schematic front cross-sectional structure of a moving block of the self-maintaining tablecloth of the present invention.

All features disclosed in the present invention, or all disclosed methods, steps in the process can be combined in any manner other than features or steps that exclude each other.

All features disclosed in the present invention are replaced by alternative features having other equivalent or similar purposes, unless otherwise stated. That is, unless otherwise stated, all features are just one example of a series of equivalent or similar features.

With reference to FIGS. 1 to 3, the self-maintaining table cloth of the present invention includes the table 11, and a collection chamber 33 in which the left and right end walls communicate with the external space is installed in the table 11, and the collection chamber 33 is installed. A drive mechanism 80 is installed in 33, and the drive mechanism 80 includes a drive motor 56, a plug 64, and an outlet 68, and drives the drive motor 56 when the plug 64 is inserted into the outlet 68. It can be actuated, thereby interlocking the operation of the entire device, the drive mechanism 80 also including a fan gear 42, a moving gear 41 and a moving block 21, and a maintenance mechanism 82 is installed on the right side of the drive mechanism 80. The maintenance mechanism 82 and the drive mechanism 80 are transmitted so as to be rubbed by the horizontal belt 22, and the inside of the maintenance mechanism 82 is transmitted so as to be rubbed by the diagonal belt 23. The maintenance mechanism 82 includes the cam 66. The cam 66 rotates to push the plug 64 out of the outlet 68, and a cloth exchange mechanism 81 is installed on the left side of the drive mechanism 80. The cloth exchange mechanism 81 has a hollow gear 45 and a triangular block 53. And the limiting groove 54, the fan-shaped gear 42 can mesh with the hollow gear 45, and when the triangular block 53 is separated from the limiting groove 54, the moving gear 41 is interlocked and moved to the right to move the fan-shaped gear 42 to the right. The cloth exchange mechanism 81 also includes a feed ring 49, a transmission ring 30, and a table cloth 10, and the table cloth 10 is motion-linked by rotation of the feed ring 49 and the transmission ring 30. When the triangular block 53 is located in the limiting groove 54, the fan-shaped gear 42 can interlock the feed ring 49 and rotate intermittently.

Advantageously, the drive mechanism 80 includes a fan-shaped gear 42, a support plate 69 is fixedly connected to the lower end surface of the table 11, and a drive motor 56 is fixedly connected to the rear end surface of the support plate 69. The drive shaft 18 is connected to the rear end surface of the drive motor 56 so that the drive shaft 18 can rotate, and a fan-shaped gear 42 is fixedly connected to the drive shaft 18 so as to be inside the rear end surface of the support plate 69. Two magnetic grooves 73 are installed symmetrically to the left and right, an electric magnet 71 is fixedly connected to the front end wall of the magnetic groove 73, and an iron block 70 is connected so as to slide in the magnetic groove 73. A magnetic rod 67 is fixedly connected to the rear end surface of the iron block 70, and the rear end of the magnetic rod 67 penetrates the rear end wall of the magnetic groove 73 and is located in an external space. A plug 64 is fixedly connected to the rear ends of the two magnetic rods 67, the plug 64 and the drive motor 56 are communicated with each other by an electric wire 63, and an outlet is provided between the two magnetic rods 67. 68 is installed, the outlet 68 and the rear end surface of the support plate 69 are fixedly connected, and a moving groove 75 in which the lower end wall communicates with the external space is installed in the table 11, and the moving A moving spring 74 is fixedly connected to the left end wall of the groove 75, and a moving block 21 is fixedly connected to the right end of the moving spring 74 so as to be slidable with the moving groove 75. The lower end of the 21 penetrates the lower end wall of the moving groove 75 and is located in the external space, and the moving shaft 39 is connected to the front end surface of the moving block 21 in the external space so as to be rotatable, and the moving A moving gear 41 that meshes with the fan-shaped gear 42 is fixedly connected to the shaft 39, and a moving pulley 40 that is fixedly connected to the moving shaft 39 is installed on the front side of the moving gear 41.

Advantageously, the cloth changing mechanism 81 includes a hollow gear 45, and a moving groove 13 in which the lower end wall communicates with the external space is installed in the left end wall of the moving groove 75, and the moving groove 13 has a moving groove 13. The movement block 12 is connected so as to slide inside, the lower end of the movement block 12 penetrates the lower end wall of the movement groove 13, and is located in the external space, and the movement block in the external space. Two square blocks 16 are fixedly connected vertically symmetrically to the front end surface of 12, an adjusting shaft 14 is connected between the two square blocks 16 so as to be rotatable, and the adjusting shaft 14 is obliquely connected. The rod 17 is fixedly connected, two thin plates 20 are fixedly connected vertically symmetrically to the left end surface of the moving block 21, and a rotating shaft 19 rotates between the two thin plates 20. A limiting shaft that is connected so as to be able to rotate, the rotating shaft 19 and the right end of the diagonal rod 17 are fixedly connected, and the left side of the drive motor 56 is connected to the rear end surface of the support plate 69 so as to be rotatable. 48 is installed, the hollow gear 45 is connected to the limiting shaft 48 so that it can rotate, and a bidirectional gear 72 fixedly connected to the limiting shaft 48 is installed on the rear side of the hollow gear 45. An annular groove 46 is installed in the hollow gear 45, and a limiting groove 54 whose lower end wall communicates with the annular groove 46 is installed in the upper end wall of the annular groove 46. A telescopic groove 43 whose upper end wall communicates with the annular groove 46 is installed in the upper end surface of the limiting shaft 48, and a telescopic spring 47 is fixedly connected to the lower end wall of the telescopic groove 43 to expand and contract. A triangular block 53 that is slidably connected to the telescopic groove 43 is fixedly connected to the upper end of the spring 47, and the upper end of the triangular block 53 is the upper end wall of the telescopic groove 43 and the lower end wall of the limiting groove 54. A square groove 58 is installed in the rear end surface of the limiting shaft 48 and is located in the limiting groove 54, and the rear end wall communicates with the external space. In the left and right end walls of the above, pressure grooves 60 that are close to the end wall of the square groove 58 and communicate with the square groove 58 are symmetrically installed, and the front end wall of the right side pressure groove 60 is installed. A pressure spring 62 is fixedly connected to the pressure spring 62, and a pressure block 61 which is fixedly connected to the rear end of the pressure spring 62 so as to be slidable with the pressure groove 60 is fixedly connected to the left end of the pressure block 61. The two pressure blowers penetrate the left end wall of the pressure groove 60 and are located in the square groove 58. A drawstring block 57 is fixedly connected between the hooks 61, and the front end of the drawstring block 57 and the lower end of the triangular block 53 are fixedly connected by a rope 51, and the lower end surface of the table 11 is fixedly connected. The localization plate 55 is fixedly connected to the position plate 55, the feed shaft 52 is fixedly connected to the front end surface of the localization plate 55 so that the feed shaft 52 can rotate, and the feed ring 49 is fixedly connected to the feed shaft 52. A feed gear 50 fixedly connected to the feed shaft 52 is installed on the front side of the ring 49, and the feed gear 50 and the hollow gear 45 are meshed with each other, and on the right side of the lower end surface of the table 11. The transmission plate 31 is fixedly connected to the front end surface of the transmission plate 31 so that the transmission shaft 32 can rotate, and the transmission ring 30 is fixedly connected to the transmission shaft 32 to the table 11. A table cloth 10 is installed, and the table cloth 10 is transmitted to the feed ring 49 by the transmission ring 30.

Advantageously, the maintenance mechanism 82 includes a maintenance wheel 38, a hollow block 34 is fixedly connected to the center of the lower end surface of the table 11, and left and right end walls are external spaces in the hollow block 34. A collection chamber 33 communicating with the collection chamber 33 is installed, a table pedestal 36 is fixedly connected to the lower end surface of the hollow block 34, and a pulley shaft 37 is connected to the rear end wall of the collection chamber 33 so as to be rotatable. The output pulley 35 is fixedly connected to the pulley shaft 37, and the output pulley 35 and the moving pulley 40 are transmitted so as to rub against each other by the horizontal belt 22, and the pulley is on the front side of the output pulley 35. A maintenance wheel 38 that is fixedly connected to the shaft 37 is installed, and an elevating groove 26 whose lower end wall communicates with the collecting chamber 33 is installed in the upper end wall of the collecting chamber 33. An elevating spring 27 is fixedly connected to the upper end wall of the elevating spring 27, and an elevating rod 28 which is connected to the lower end of the elevating spring 27 so as to be slidable is fixedly connected to the elevating rod 28. The lower end penetrates the lower end wall of the elevating groove 26 and is located in the collecting chamber 33, and the horizontal rod 29 is fixedly connected to the lower end of the elevating rod 28, and the horizontal rod 29 A power shaft 24 that is rotatably connected to the rear end wall of the collection chamber 33 is installed on the left side of the power shaft 24, and a lifting gear 25 whose right end meshes with the left end of the horizontal rod 29 is fixed to the power shaft 24. A lifting pulley 15 is installed on the rear side of the lifting gear 25 and fixedly connected to the power shaft 24, and on the right side of the magnetic rod 67, it can rotate with the rear end surface of the support plate 69. A return shaft 44 connected to the return shaft 44 is installed, a cam 66 is fixedly connected to the return shaft 44, a return pulley 65 is fixedly connected to the rear end of the return shaft 44, and the return pulley 65 is connected to the return pulley 65. The elevating pulley 15 is transmitted so as to rub against the oblique belt 23.

Below, with reference to FIGS. 1-3 and the specific configuration of the self-maintaining tablecloth of the present application described above, the usage of the self-maintaining tablecloth of the present application will be introduced in detail:

When used, the electric magnet 71 is energized to generate magnetism, and the iron block 70 is attracted and moved forward, whereby the magnetic rod 67 is interlocked with the movement forward, and the magnetic rod 67 causes the plug 64. The movement is interlocked before, the plug 64 is inserted into the outlet 68, the drive motor 56 is energized and started by the conduction of the electric wire 63, whereby the drive shaft 18 is rotationally interlocked, and the drive shaft 18 is The fan-shaped gear 42 is rotationally interlocked, and the bidirectional gear 72 is rotationally interlocked through meshing of the fan-shaped gear 42 and the bidirectional gear 72, whereby the limiting shaft 48 is rotationally interlocked, and the limiting shaft 48 is the triangular. When the block 53 is rotationally interlocked and there is something in the table cloth 10, the table cloth 10 cannot move, the triangular block 53 is separated from the limiting groove 54, the telescopic spring 47 is compressed, and the telescopic spring 47 is compressed. The rope 51 is released, the pressure spring 62 returns later, the pull string block 57 is pushed and then moved, whereby the movement block 12 is interlocked with the rear movement, and the movement block 12 moves the diagonal rod 17. The moving block 21 is oscillated and interlocked, thereby pushing the moving block 21 and moving it to the right, and the moving block 21 moves the moving gear 41 to the right to disengage the fan-shaped gear 42 from meshing with the table cloth 10. When there is nothing, the hollow gear 45 is rotationally interlocked by fixing the triangular block 53 and the limiting groove 54, and the feed wheel 49 is rotationally interlocked by meshing the hollow gear 45 and the feed gear 50. As a result, the table cloth 10 is motion-linked, and when the fan-shaped gear 42 rotates until it meshes with the moving gear 41, the moving gear 41 is rotationally linked, whereby the moving shaft 39 is rotationally linked, and the movement The shaft rotates and interlocks the moving pulley 40, and the friction transmission of the horizontal belt 22 causes the output pulley 35 to rotate and interlock, and the output pulley 35 rotates and interlocks the pulley shaft 37, thereby causing the maintenance wheel 38 to rotate. In conjunction with the rotation, the maintenance wheel 38 rotates to remove dust and solid particles on the surface of the table cloth 10, the maintenance wheel 38 rotates to push and raise the horizontal axis 29, and the horizontal axis 29 and the said. By engaging with the elevating gear 25, the elevating gear 25 is rotationally interlocked, and the elevating gear 25 is rotationally interlocked with the power shaft 24, whereby the elevating pulley. 15 is rotationally interlocked, and the return pulley 65 is rotationally interlocked by the friction transmission of the diagonal belt 23, whereby the return shaft 44 is rotationally interlocked, the return shaft 44 is rotationally interlocked with the cam 66, and the plug. 64 is pushed out of the outlet 68 to cut off the electricity of the drive motor 56, thereby completing the replacement of the tablecloth on one side and cleaning the surface of the used tablecloth.

The beneficial effect of the present invention is: The device of the present invention designs an annular belt type tablecloth, has a double-sided tablecloth, and automatically cleans the dirty side tablecloth when the user tries to replace it. The table cloth can be replaced quickly, which is advantageous for the development of subsequent work, and the dirty surface is automatically cleaned and maintained, making it convenient for the next use and the surface of the table. The table cannot be replaced by pressing the switch of the device when there is something on the table, avoiding accidental damage to the table surface, the device uses only one power source, is highly automated, and is easy to use. It is convenient.

The above is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this. Changes and replacements that come to mind through all creative labor are covered by the scope of the invention. Therefore, the scope of protection of the present invention is based on the scope of protection in which the request for rights is limited.

The present invention takes up the field of tablecloths, and specifically, is a tablecloth that can be automatically maintained .

The tablecloth is a table surface protection tool that protects the surface of the table and prevents it from getting dirty or scratched, and the tablecloth also has a decorative effect, so the maintenance of the existing tablecloth needs to be artificially maintained. , It is inconvenient to replace and clean.

Chinese Patent Application Publication No. 107007095

An object of the present invention is to provide a tablecloth that can be automatically maintained, which can solve the problems in the current technology described above.

To solve the above problems, the present invention employs the following technical plan: The automatically maintainable table cloth of the present invention includes a table, and the collection chamber penetrates the table from side to side. A drive mechanism is installed within the collection chamber, which includes a drive motor and a plug and outlet, which can drive and operate the drive motor when the plug is inserted into the outlet. The drive mechanism also includes a fan-shaped gear, a moving gear, and a moving block, a maintenance mechanism is installed on the right side of the drive mechanism, and the maintenance mechanism and the drive mechanism are connected by a horizontal belt. It is transmitted so as to rub, and the mechanical parts included in the maintenance mechanism are transmitted so as to be rubbed by an oblique belt , the maintenance mechanism includes a cam, and the cam can rotate to push the plug out of the outlet. A cloth exchange mechanism is installed on the left side of the drive mechanism, and the cloth exchange mechanism includes a hollow gear, a triangular block and a limiting groove, the fan-shaped gear can mesh with the hollow gear, and the triangular block is the limiting groove. When disengaged from, the moving gear is interlocked and moved to the right to disengage from the meshing of the fan-shaped gear, and the cloth exchange mechanism also includes a feed wheel, a transmission ring and a table cloth, and the feed ring and the transmission ring. The table cloth can be interlocked with the movement by the rotation with, and when the triangular block is located in the limiting groove, the fan-shaped gear can interlock the feed ring and rotate intermittently.

Preferentially, the drive mechanism includes a fan-shaped gear, a support plate is fixedly connected to the lower end surface of the table, and a drive motor is fixedly connected to the rear end surface of the support plate. A drive shaft is rotatably connected to the rear end surface, a fan-shaped gear is fixedly connected to the drive shaft, and two magnetic grooves are symmetrically installed in the rear end surface of the support plate. An electric magnet is fixedly connected to the front end wall of the magnetic groove, an iron block is connected so as to slide in the magnetic groove, and a magnetic rod is fixedly connected to the rear end surface of the iron block. The rear ends of the magnetic rods are connected, penetrate the rear end wall of the magnetic groove, and are located in the external space, and the plugs are fixedly connected to the rear ends of the two magnetic rods. The plug and the drive motor are communicated with each other by an electric wire, an outlet is installed between the two magnetic rods, and the outlet and the rear end surface of the support plate are fixedly connected to each other in the table. Is provided with a moving groove whose lower end wall communicates with the external space, a moving spring is fixedly connected to the left end wall of the moving groove, and a moving spring is connected to the right end of the moving spring so as to slide with the moving groove. The moving blocks to be moved are fixedly connected, the lower end of the moving block penetrates the lower end wall of the moving groove and is located in the external space, and the moving shaft is attached to the front end surface of the moving block in the external space. Is rotatably connected, a moving gear that meshes with the fan-shaped gear is fixedly connected to the moving shaft, and a moving pulley that is fixedly connected to the moving shaft is installed on the front side of the moving gear. To.

Preferentially, the cloth exchange mechanism includes a hollow gear, a movement groove in which the lower end wall communicates with the external space is installed in the left end wall of the movement groove, and a movement block is installed in the movement groove. Are connected so that they can slide, the lower end of the movement block penetrates the lower end wall of the movement groove, and is located in the external space, and two squares are formed on the front end surface of the movement block in the external space. The blocks are fixedly connected vertically symmetrically, the adjusting shaft is connected so as to be rotatable between the two square blocks, and the diagonal rod is fixedly connected to the adjusting shaft, and the left end of the moving block is connected. Two thin plates are symmetrically and fixedly connected vertically to the surface, and a rotating shaft is connected so as to be rotatable between the two thin plates, and the rotating shaft and the right end of the diagonal rod are fixedly connected. A limiting shaft that is connected and connected to the rear end surface of the support plate so as to be rotatable is installed on the left side of the drive motor, and a hollow gear is connected to the limiting shaft so that it can rotate, and is rear of the hollow gear. A bidirectional gear fixedly connected to the limiting shaft is installed on the side, an annular groove is installed in the hollow gear, and a lower end wall communicates with the annular groove in the upper end wall of the annular groove. A telescopic groove is installed, and a telescopic groove whose upper end wall communicates with the annular groove is installed in the upper end surface of the limiting shaft among the annular grooves, and a telescopic spring is installed on the lower end wall of the telescopic groove. Is fixedly connected to the upper end of the telescopic spring, and a triangular block connected so as to slide with the telescopic groove is fixedly connected, and the upper end of the triangular block is fixedly connected to the upper end wall of the telescopic groove and the limiting groove. A square groove is installed in the rear end surface of the limiting shaft, which penetrates the lower end wall of the frame and is located in the limiting groove, and the rear end wall communicates with the external space. Inside the left and right end walls, pressure grooves that are close to the end walls of the square groove and that communicate with the square grooves are symmetrically installed, and pressure springs are installed on the front end wall of the right side pressure groove. A pressure block that is fixedly connected and is connected to the rear end of the pressure spring so as to slide with the pressure groove is fixedly connected, and the left end of the pressure block penetrates the left end wall of the pressure groove. Moreover, it is located in the square groove, and the drawstring block is fixedly connected between the two pressure blocks, and the front end of the drawstring block and the lower end of the triangular block are fixed by a rope. A localization plate is fixedly connected to the lower end surface of the table, and a feed shaft is connected to the front end surface of the localization plate so that the feed shaft can rotate. A feed wheel is fixedly connected to the feed shaft, and a feed gear that is fixedly connected to the feed shaft is installed on the front side of the feed wheel, and the feed gear and the hollow gear are meshed with each other. A transmission plate is fixedly connected to the right side of the lower end surface of the table, a transmission shaft is fixedly connected to the front end surface of the transmission plate so that the transmission shaft can rotate, and a transmission ring is fixedly connected to the transmission shaft. A table cloth is installed on the table, and the table cloth is transmitted to the feed ring by the transmission ring.

Preferentially, the maintenance mechanism includes a maintenance wheel, a hollow block is fixedly connected to the center of the lower end surface of the table, and left and right end walls communicate with an external space in the hollow block. A collection chamber is installed, a table pedestal is fixedly connected to the lower end surface of the hollow block, a pulley shaft is connected to the rear end wall of the collection chamber so that the pulley shaft can rotate, and an output pulley is connected to the pulley shaft. It is fixedly connected, the output pulley and the moving pulley are transmitted so as to rub against each other by a horizontal belt, and a maintenance wheel fixedly connected to the pulley shaft is installed on the front side of the output pulley to collect the above. An elevating groove is installed in the upper end wall of the chamber so that the lower end wall communicates with the collection chamber, an elevating spring is fixedly connected to the upper end wall of the elevating groove, and the elevating spring is fixedly connected to the lower end of the elevating spring. An elevating rod that is slidably connected to the elevating groove is fixedly connected, and the lower end of the elevating rod penetrates the lower end wall of the elevating groove and is located in the collecting chamber. A horizontal rod is fixedly connected to the lower end of the elevating rod, and a power shaft connected to the rear end wall of the collection chamber is installed on the left side of the horizontal rod so that the right end is connected to the power shaft. An elevating gear that meshes with the left end of the horizontal rod is fixedly connected, an elevating pulley that is fixedly connected to the power shaft is installed on the rear side of the elevating gear, and the support is on the right side of the magnetic rod. A return shaft that is rotatably connected to the rear end surface of the plate is installed, a cam is fixedly connected to the return shaft, and a return pulley is fixedly connected to the rear end of the return shaft. The pulley and the elevating pulley are transmitted so as to rub against each other by the diagonal belt.

The beneficial effect of the present invention is: The device of the present invention designs an annular belt type tablecloth, has a double-sided tablecloth, and automatically cleans the dirty side tablecloth when the user tries to replace it. The table cloth can be replaced quickly, which is advantageous for the development of subsequent work, and the dirty surface is automatically cleaned and maintained, making it convenient for the next use and the surface of the table. The table cannot be replaced by pressing the switch of the device when there is something on the table, avoiding accidental damage to the table surface, the device uses only one power source, is highly automated, and is easy to use. It is convenient.

In order to explain the present invention in detail with reference to FIGS. 1 to 3 below and to explain the present invention in a convenient manner, the following directions are defined as follows: FIG. 1 is a front view of the apparatus of the present invention, and is described above and below. The left-right front-back direction and the up-down, left-right front-back direction of the self-projection relationship in FIG. 1 are the same.

FIG. 1 is a schematic front view of the entire cross section of the table cloth that can be automatically maintained according to the present invention. FIG. 2 is a schematic cross-sectional structure of the drive shaft and the left side of the drive shaft in FIG. FIG. 3 is a schematic front view cross-sectional structure of the moving block and the upper part of the moving block in FIG.

All features disclosed in the present invention, or all disclosed methods, steps in the process can be combined in any manner other than features or steps that exclude each other.

All features disclosed in the present invention are replaced by alternative features having other equivalent or similar purposes, unless otherwise stated. That is, unless otherwise stated, all features are just one example of a series of equivalent or similar features.

With reference to FIGS. 1 to 3, the table cloth that can be automatically maintained according to the present invention includes the table 11, and the collection chamber 33 penetrates the table 11 to the left and right, and is driven into the collection chamber 33. A mechanism 80 is installed, the drive mechanism 80 includes a drive motor 56, a plug 64, and an outlet 68, and the drive motor 56 can be driven and operated when the plug 64 is inserted into the outlet 68. As a result, the entire device is operated and interlocked, and the drive mechanism 80 also includes a fan-shaped gear 42, a moving gear 41, and a moving block 21, and a maintenance mechanism 82 is installed on the right side of the drive mechanism 80 with the maintenance mechanism 82. The drive mechanism 80 is transmitted so as to be rubbed by the horizontal belt 22, the mechanical parts included in the maintenance mechanism 82 are transmitted so as to be rubbed by the diagonal belt 23 , and the maintenance mechanism 82 includes the cam 66. The cam 66 rotates to push the plug 64 out of the outlet 68, a cloth exchange mechanism 81 is installed on the left side of the drive mechanism 80, and the cloth exchange mechanism 81 has a hollow gear 45, a triangular block 53, and a limitation. The fan-shaped gear 42 includes the groove 54, and when the triangular block 53 is separated from the limiting groove 54, the moving gear 41 is interlocked and moved to the right to mesh the fan-shaped gear 42. The cloth exchange mechanism 81 also includes a feed ring 49, a transmission ring 30, and a table cloth 10, and the table cloth 10 can be motion-linked by rotation of the feed ring 49 and the transmission ring 30. When the triangular block 53 is located in the limiting groove 54, the fan-shaped gear 42 can interlock the feed ring 49 and rotate it intermittently.

Advantageously, the drive mechanism 80 includes a fan-shaped gear 42, a support plate 69 is fixedly connected to the lower end surface of the table 11, and a drive motor 56 is fixedly connected to the rear end surface of the support plate 69. The drive shaft 18 is connected to the rear end surface of the drive motor 56 so that the drive shaft 18 can rotate, and a fan-shaped gear 42 is fixedly connected to the drive shaft 18 so as to be inside the rear end surface of the support plate 69. Two magnetic grooves 73 are installed symmetrically to the left and right, an electric magnet 71 is fixedly connected to the front end wall of the magnetic groove 73, and an iron block 70 is connected so as to slide in the magnetic groove 73. A magnetic rod 67 is fixedly connected to the rear end surface of the iron block 70, and the rear end of the magnetic rod 67 penetrates the rear end wall of the magnetic groove 73 and is located in an external space. A plug 64 is fixedly connected to the rear ends of the two magnetic rods 67, the plug 64 and the drive motor 56 are communicated with each other by an electric wire 63, and an outlet is provided between the two magnetic rods 67. 68 is installed, the outlet 68 and the rear end surface of the support plate 69 are fixedly connected, and a moving groove 75 in which the lower end wall communicates with the external space is installed in the table 11, and the moving A moving spring 74 is fixedly connected to the left end wall of the groove 75, and a moving block 21 is fixedly connected to the right end of the moving spring 74 so as to be slidable with the moving groove 75. The lower end of the 21 penetrates the lower end wall of the moving groove 75 and is located in the external space, and the moving shaft 39 is connected to the front end surface of the moving block 21 in the external space so as to be rotatable, and the moving A moving gear 41 that meshes with the fan-shaped gear 42 is fixedly connected to the shaft 39, and a moving pulley 40 that is fixedly connected to the moving shaft 39 is installed on the front side of the moving gear 41.

Advantageously, the cloth changing mechanism 81 includes a hollow gear 45, and a moving groove 13 in which the lower end wall communicates with the external space is installed in the left end wall of the moving groove 75, and the moving groove 13 has a moving groove 13. The movement block 12 is connected so as to slide inside, the lower end of the movement block 12 penetrates the lower end wall of the movement groove 13, and is located in the external space, and the movement block in the external space. Two square blocks 16 are fixedly connected vertically symmetrically to the front end surface of 12, an adjusting shaft 14 is connected between the two square blocks 16 so as to be rotatable, and the adjusting shaft 14 is obliquely connected. The rod 17 is fixedly connected, two thin plates 20 are fixedly connected vertically symmetrically to the left end surface of the moving block 21, and a rotating shaft 19 rotates between the two thin plates 20. A limiting shaft that is connected so as to be able to rotate, the rotating shaft 19 and the right end of the diagonal rod 17 are fixedly connected, and the left side of the drive motor 56 is connected to the rear end surface of the support plate 69 so as to be rotatable. 48 is installed, the hollow gear 45 is connected to the limiting shaft 48 so that it can rotate, and a bidirectional gear 72 fixedly connected to the limiting shaft 48 is installed on the rear side of the hollow gear 45. An annular groove 46 is installed in the hollow gear 45, and a limiting groove 54 whose lower end wall communicates with the annular groove 46 is installed in the upper end wall of the annular groove 46. A telescopic groove 43 whose upper end wall communicates with the annular groove 46 is installed in the upper end surface of the limiting shaft 48, and a telescopic spring 47 is fixedly connected to the lower end wall of the telescopic groove 43 to expand and contract. A triangular block 53 that is slidably connected to the telescopic groove 43 is fixedly connected to the upper end of the spring 47, and the upper end of the triangular block 53 is the upper end wall of the telescopic groove 43 and the lower end wall of the limiting groove 54. A square groove 58 is installed in the rear end surface of the limiting shaft 48 and is located in the limiting groove 54, and the rear end wall communicates with the external space. In the left and right end walls of the above, pressure grooves 60 that are close to the end wall of the square groove 58 and communicate with the square groove 58 are symmetrically installed, and the front end wall of the right side pressure groove 60 is installed. A pressure spring 62 is fixedly connected to the pressure spring 62, and a pressure block 61 which is fixedly connected to the rear end of the pressure spring 62 so as to be slidable with the pressure groove 60 is fixedly connected to the left end of the pressure block 61. The two pressure blowers penetrate the left end wall of the pressure groove 60 and are located in the square groove 58. A drawstring block 57 is fixedly connected between the hooks 61, and the front end of the drawstring block 57 and the lower end of the triangular block 53 are fixedly connected by a rope 51, and the lower end surface of the table 11 is fixedly connected. The localization plate 55 is fixedly connected to the position plate 55, the feed shaft 52 is fixedly connected to the front end surface of the localization plate 55 so that the feed shaft 52 can rotate, and the feed ring 49 is fixedly connected to the feed shaft 52. A feed gear 50 fixedly connected to the feed shaft 52 is installed on the front side of the ring 49, and the feed gear 50 and the hollow gear 45 are meshed with each other, and on the right side of the lower end surface of the table 11. The transmission plate 31 is fixedly connected to the front end surface of the transmission plate 31 so that the transmission shaft 32 can rotate, and the transmission ring 30 is fixedly connected to the transmission shaft 32 to the table 11. A table cloth 10 is installed, and the table cloth 10 is transmitted to the feed ring 49 by the transmission ring 30.

Advantageously, the maintenance mechanism 82 includes a maintenance wheel 38, a hollow block 34 is fixedly connected to the center of the lower end surface of the table 11, and left and right end walls are external spaces in the hollow block 34. A collection chamber 33 communicating with the collection chamber 33 is installed, a table pedestal 36 is fixedly connected to the lower end surface of the hollow block 34, and a pulley shaft 37 is connected to the rear end wall of the collection chamber 33 so as to be rotatable. The output pulley 35 is fixedly connected to the pulley shaft 37, and the output pulley 35 and the moving pulley 40 are transmitted so as to rub against each other by the horizontal belt 22, and the pulley is on the front side of the output pulley 35. A maintenance wheel 38 that is fixedly connected to the shaft 37 is installed, and an elevating groove 26 whose lower end wall communicates with the collecting chamber 33 is installed in the upper end wall of the collecting chamber 33. An elevating spring 27 is fixedly connected to the upper end wall of the elevating spring 27, and an elevating rod 28 which is connected to the lower end of the elevating spring 27 so as to be slidable is fixedly connected to the elevating rod 28. The lower end penetrates the lower end wall of the elevating groove 26 and is located in the collecting chamber 33, and the horizontal rod 29 is fixedly connected to the lower end of the elevating rod 28, and the horizontal rod 29 A power shaft 24 that is rotatably connected to the rear end wall of the collection chamber 33 is installed on the left side of the power shaft 24, and a lifting gear 25 whose right end meshes with the left end of the horizontal rod 29 is fixed to the power shaft 24. A lifting pulley 15 is installed on the rear side of the lifting gear 25 and fixedly connected to the power shaft 24, and on the right side of the magnetic rod 67, it can rotate with the rear end surface of the support plate 69. A return shaft 44 connected to the return shaft 44 is installed, a cam 66 is fixedly connected to the return shaft 44, a return pulley 65 is fixedly connected to the rear end of the return shaft 44, and the return pulley 65 is connected to the return pulley 65. The elevating pulley 15 is transmitted so as to rub against the oblique belt 23.

Below, we will introduce in detail how to use the tablecloth that can be automatically maintained in this application by referring to FIGS. 1 to 3 and the specific configuration of the tablecloth that can be automatically maintained in this application described above:

When used, the electric magnet 71 is energized to generate magnetism, and the iron block 70 is attracted and moved forward, whereby the magnetic rod 67 is interlocked with the movement forward, and the magnetic rod 67 causes the plug 64. The movement is interlocked before, the plug 64 is inserted into the outlet 68, the drive motor 56 is energized and started by the conduction of the electric wire 63, whereby the drive shaft 18 is rotationally interlocked, and the drive shaft 18 is The fan-shaped gear 42 is rotationally interlocked, and the bidirectional gear 72 is rotationally interlocked through meshing of the fan-shaped gear 42 and the bidirectional gear 72, whereby the limiting shaft 48 is rotationally interlocked, and the limiting shaft 48 is the triangular. When the block 53 is rotationally interlocked and there is something in the table cloth 10, the table cloth 10 cannot move, the triangular block 53 is separated from the limiting groove 54, the telescopic spring 47 is compressed, and the telescopic spring 47 is compressed. The rope 51 is released, the pressure spring 62 returns later, the pull string block 57 is pushed and then moved, whereby the movement block 12 is interlocked with the rear movement, and the movement block 12 moves the diagonal rod 17. The moving block 21 is oscillated and interlocked, thereby pushing the moving block 21 and moving it to the right, and the moving block 21 moves the moving gear 41 to the right to disengage the fan-shaped gear 42 from meshing with the table cloth 10. When there is nothing, the hollow gear 45 is rotationally interlocked by fixing the triangular block 53 and the limiting groove 54, and the feed wheel 49 is rotationally interlocked by meshing the hollow gear 45 and the feed gear 50. As a result, the table cloth 10 is motion-linked, and when the fan-shaped gear 42 rotates until it meshes with the moving gear 41, the moving gear 41 is rotationally linked, whereby the moving shaft 39 is rotationally linked, and the movement The shaft rotates and interlocks the moving pulley 40, and the friction transmission of the horizontal belt 22 causes the output pulley 35 to rotate and interlock, and the output pulley 35 rotates and interlocks the pulley shaft 37, thereby causing the maintenance wheel 38 to rotate. In conjunction with the rotation, the maintenance wheel 38 rotates to remove dust and solid particles on the surface of the table cloth 10, the maintenance wheel 38 rotates to push and raise the horizontal axis 29, and the horizontal axis 29 and the said. By engaging with the elevating gear 25, the elevating gear 25 is rotationally interlocked, and the elevating gear 25 is rotationally interlocked with the power shaft 24, whereby the elevating pulley. 15 is rotationally interlocked, and the return pulley 65 is rotationally interlocked by the friction transmission of the diagonal belt 23, whereby the return shaft 44 is rotationally interlocked, the return shaft 44 is rotationally interlocked with the cam 66, and the plug. 64 is pushed out of the outlet 68 to cut off the electricity of the drive motor 56, thereby completing the replacement of the tablecloth on one side and cleaning the surface of the used tablecloth.

The beneficial effect of the present invention is: The device of the present invention designs an annular belt type tablecloth, has a double-sided tablecloth, and automatically cleans the dirty side tablecloth when the user tries to replace it. The table cloth can be replaced quickly, which is advantageous for the development of subsequent work, and the dirty surface is automatically cleaned and maintained, making it convenient for the next use and the surface of the table. The table cannot be replaced by pressing the switch of the device when there is something on the table, avoiding accidental damage to the table surface, the device uses only one power source, is highly automated, and is easy to use. It is convenient.

The above is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this. Changes and replacements that come to mind through all creative labor are covered by the scope of the invention. Therefore, the scope of protection of the present invention is based on the scope of protection in which the request for rights is limited.

Claims (4)

When viewed from the front, a collection chamber including a table, in which the left and right end walls communicate with an external space is installed, a drive mechanism is installed in the collection chamber, and the drive mechanism is a drive motor. And, including a plug and an outlet, the drive motor can be driven and actuated when the plug is inserted into the outlet, thereby interlocking the operation of the entire device, the drive mechanism also moving with a fan gear. A maintenance mechanism is installed on the right side of the drive mechanism including gears and moving blocks, and the maintenance mechanism and the drive mechanism are transmitted so as to be rubbed by a horizontal belt, and the inside of the maintenance mechanism is rubbed by an oblique belt. The maintenance mechanism includes a cam, the cam can rotate to push the plug out of the outlet, a cloth exchange mechanism is installed on the left side of the drive mechanism, and the cloth exchange mechanism is a hollow gear. And, including the triangular block and the limiting groove, the fan-shaped gear can mesh with the hollow gear, and when the triangular block separates from the limiting groove, the moving gear is interlocked and moved to the right from the meshing of the fan-shaped gear. Disengaged, the cloth exchange mechanism also includes a feed wheel, a transmission wheel and a table cloth, the table cloth can be motion-linked by rotation of the feed wheel and the transmission wheel, and the triangular block is the limiting groove. A self-maintaining table cloth, characterized in that the fan-shaped gear can interlock and rotate the feed ring intermittently when located in. The drive mechanism includes a fan-shaped gear, a support plate is fixedly connected to the lower end surface of the table, a drive motor is fixedly connected to the rear end surface of the support plate, and the rear end surface of the drive motor is fixedly connected. The drive shafts are connected so as to be rotatable, fan-shaped gears are fixedly connected to the drive shafts, and two magnetic grooves are symmetrically installed left and right in the rear end surface of the support plate. An electric magnet is fixedly connected to the front end wall of the magnet, an iron block is fixedly connected to the magnetic groove so that an iron block can slide, and a magnetic rod is fixedly connected to the rear end surface of the iron block. The rear end of the rod penetrates the rear end wall of the magnetic groove and is located in the external space, and a plug is fixedly connected to both rear ends of the two magnetic rods, and the plug and the drive motor are connected to each other. And are communicated by electric wires, an outlet is installed between the two magnetic rods, the outlet and the rear end surface of the support plate are fixedly connected, and the lower end wall is outside in the table. A moving groove communicating with the space is installed, a moving spring is fixedly connected to the left end wall of the moving groove, and a moving block connected to the right end of the moving spring so as to slide with the moving groove. It is fixedly connected, the lower end of the moving block penetrates the lower end wall of the moving groove, and is located in the external space, so that the moving axis can rotate on the front end surface of the moving block in the external space. A moving gear that is connected and meshes with the fan-shaped gear is fixedly connected to the moving shaft, and a moving pulley that is fixedly connected to the moving shaft is installed on the front side of the moving gear. The self-maintaining table cloth according to claim 1. The cloth exchange mechanism includes a hollow gear, and a movement groove in which the lower end wall communicates with the external space is installed in the left end wall of the movement groove so that the movement block can slide in the movement groove. Connected, the lower end of the movement block penetrates the lower end wall of the movement groove and is located in the external space, and two square blocks are vertically symmetrical on the front end surface of the movement block in the external space. The two square blocks are fixedly connected to each other so that the adjustment shaft can rotate, the diagonal rod is fixedly connected to the adjustment shaft, and two on the left end surface of the movement block. The thin plates are symmetrically and fixedly connected vertically, and the rotating shaft is connected so as to be rotatable between the two thin plates, and the rotating shaft and the right end of the diagonal rod are fixedly connected and the driving. A limiting shaft connected to the rear end surface of the support plate so as to rotate is installed on the left side of the motor, a hollow gear is connected to the limiting shaft so as to rotate, and the limiting shaft is connected to the rear side of the hollow gear so as to rotate. A bidirectional gear that is fixedly connected to the shaft is installed, an annular groove is installed in the hollow gear, and a limiting groove in which the lower end wall communicates with the annular groove in the upper end wall of the annular groove. Is installed, a telescopic groove whose upper end wall communicates with the annular groove is installed in the upper end surface of the limiting shaft among the annular grooves, and a telescopic spring is fixedly connected to the lower end wall of the telescopic groove. A triangular block is fixedly connected to the upper end of the telescopic spring so as to be slidable with the telescopic groove, and the upper end of the triangular block penetrates the upper end wall of the telescopic groove and the lower end wall of the limiting groove. In addition, a square groove is installed in the rear end surface of the limiting shaft, and the rear end wall communicates with the external space, and is inside the left and right end walls of the square groove. A pressure groove that is close to the end wall of the square groove and communicates with the square groove is symmetrically installed, and a pressure spring is fixedly connected to the front end wall of the right side pressure groove. A pressure block that is slidably connected to the pressure groove is fixedly connected to the rear end of the pressure spring, the left end of the pressure block penetrates the left end wall of the pressure groove, and the square groove. Located inside, the drawstring block is fixedly connected between the two pressure blocks, and the front end of the drawstring block and the lower end of the triangular block are fixedly connected by a rope. A localization plate is fixedly connected to the lower end surface of the table, is connected to the front end surface of the localization plate so that the feed shaft can rotate, and is connected to the feed shaft. The feed wheel is fixedly connected, and a feed gear fixedly connected to the feed shaft is installed on the front side of the feed wheel, and the feed gear and the hollow gear are meshed with each other under the table. A transmission plate is fixedly connected to the right side of the end face, a transmission shaft is fixedly connected to the front end face of the transmission plate so that the transmission shaft can rotate, and a transmission ring is fixedly connected to the transmission shaft. The self-maintaining table cloth according to claim 1, wherein a table cloth is installed, and the table cloth is transmitted to the feed wheel by the transmission wheel. The maintenance mechanism includes a maintenance wheel, a hollow block is fixedly connected to the center of the lower end surface of the table, and a collection chamber in which the left and right end walls communicate with an external space is installed in the hollow block. A table pedestal is fixedly connected to the lower end surface of the hollow block, a pulley shaft is fixedly connected to the rear end wall of the collection chamber so that the pulley shaft can rotate, and an output pulley is fixedly connected to the pulley shaft. The output pulley and the moving pulley are transmitted so as to rub against each other by a horizontal belt, and a maintenance wheel fixedly connected to the pulley shaft is installed on the front side of the output pulley, and the upper end wall of the collection chamber is provided. An elevating groove is installed in which the lower end wall communicates with the collection chamber, the elevating spring is fixedly connected to the upper end wall of the elevating groove, and the lower end of the elevating spring can slide with the elevating groove. The elevating rods connected in this way are fixedly connected, and the lower end of the elevating rod penetrates the lower end wall of the elevating groove and is located in the collecting chamber, and is located at the lower end of the elevating rod. The horizontal rod is fixedly connected, and a power shaft connected to the rear end wall of the collection chamber so as to be connected is installed on the left side of the horizontal rod, and the right end of the power shaft is the left end of the horizontal rod. An elevating gear that meshes with the elevating gear is fixedly connected, an elevating pulley that is fixedly connected to the power shaft is installed on the rear side of the elevating gear, and the rear end surface of the support plate is on the right side of the magnetic rod. A return shaft that is connected so that it can rotate is installed, a cam is fixedly connected to the return shaft, a return pulley is fixedly connected to the rear end of the return shaft, and the return pulley and the elevating pulley are fixedly connected. The self-maintaining table cloth according to claim 1, wherein the gears are transmitted so as to be rubbed by an oblique belt.