Interactive question answering device for peasant training

Abstract

The invention discloses an interactive question answering device for peasant training, which solves the problem that peasants do not know the use of an operation panel and influence the training progress, and comprises a base, the top end of the base is provided with an operation table, the top end of the operation table is provided with an operation panel, and the operation panel is used for training interaction with the peasants. A seat control assembly is installed at the top end of the base and used for facilitating starting of the operation panel, and an operation control assembly is installed at the top end of the operation table and used for operating the operation panel, facilitating starting of interactive question and answer software and facilitating shutdown. During work, after a user sits on the seat body, startup is carried out, when a pen holder is taken, the pen holder clicks on an interactive question and answer icon to facilitate software opening, when the pen holder is put back, the pen holder clicks on a shutdown icon to facilitate shutdown of an operation panel, operation of the operation panel is integrated into necessary operation, and the operation panel is convenient to use. And peasant training is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of farmer training, and in particular relates to an interactive question-answering device for farmer training. Background Art

[0002] In order to improve farmers' technical methods of planting, farmers need to be trained. Now it is specially designed for farmer training. The knowledge base content is closely centered on practical problems in agricultural production, and training is carried out through animated interactive questions and answers. Both novice farmers and experienced farmers can obtain valuable information from it. For example, for farmers who are new to greenhouse planting, it can provide answers to a series of detailed questions from greenhouse construction, temperature and humidity control to suitable crop varieties for planting. The window for farmers to interact with the device includes an operation panel, but there are the following defects during use: When training is conducted through the operation panel, it is necessary to turn the panel on and off, open the interactive software, etc. However, farmers do not understand the use of the operation panel and may not be proficient in its use, which affects the training process. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an interactive question-and-answer device for farmer training, which effectively solves the problem that farmers do not understand the use of the operation panel, affecting the training process.

[0004] To achieve the above object, the present invention provides the following technical solutions: an interactive question-and-answer device for farmer training, comprising a base, an operating table is installed on the top of the base, an operating panel is installed on the top of the operating table, the operating panel is used for training interaction with farmers, a seat control component is installed on the top of the base, the seat control component is used to facilitate the startup of the operating panel, and an operation control component is installed on the top of the operating table, the operation control component is used to operate the operation panel; The seat control assembly includes a fixed cylinder fixedly installed on the top of the base, a movable block movably installed inside the fixed cylinder, guide grooves are symmetrically opened on the inner wall of the fixed cylinder, guide blocks are symmetrically installed on both sides of the movable block, the guide blocks are slidably connected to the guide grooves, a lower contact is installed at the bottom end of the side wall of the guide groove, and an upper contact is installed on the movable block. When the bottom end of the guide block contacts the inner bottom wall of the guide groove, the two ends of the upper contact respectively contact the two lower contacts, so that the operation panel is powered on and turned on.

[0005] Preferably, a support rod is installed at the top of the movable block, a seat body is installed at the top of the support rod, a support spring is fixedly installed at the bottom end of the support rod, and the bottom end of the support spring is fixedly connected to the inner bottom wall of the fixed cylinder.

[0006] Preferably, the operation control component includes a fixed frame arranged on one side above the operating table, the fixed frame and the operating table are fixedly connected by a support column, a rotating shaft is rotatably installed on the fixed frame, an icon clicking unit is installed at the bottom end of the rotating shaft, and a rotating driving member is installed at the top end of the rotating shaft.

[0007] Preferably, the icon click unit includes side blocks symmetrically installed on both sides of the bottom end of the rotating shaft, a longitudinal slide groove is opened inside the side block, a longitudinal slider is slidably installed inside the longitudinal slide groove, a horizontal plate is installed on the side where the two longitudinal sliders are away from each other, a return spring is symmetrically installed at the bottom end of the longitudinal slider, the bottom end of the return spring is fixedly connected to the inner bottom wall of the longitudinal slide groove, a limiting unit is installed on the horizontal plate, and a top block is installed on the top of the horizontal plate.

[0008] Preferably, an interactive question-and-answer software icon and a shutdown icon are provided on the operation interface of the operation panel. The interactive question-and-answer software icon is located below the placement limit unit on the side away from the fixed cylinder, and the shutdown icon is located below the placement limit unit on the side close to the fixed cylinder.

[0009] Preferably, the placement limit unit includes a placement cylinder arranged on the horizontal plate, the placement cylinder is located on the side of the top block away from the side block, two side boxes are symmetrically installed on both sides of the side block, the side boxes are connected to the placement cylinder, a limit block is movably installed inside the side box, a compression spring is installed at one end of the limit block located inside the side box, one end of the compression spring is fixedly connected to the inner wall of the end of the side box, a pressure inclined surface is opened on the top of the other end of the limit block, and a click pen unit is placed in the placement cylinder away from the side of the fixed cylinder.

[0010] Preferably, the click pen unit includes a pen shaft, which is inserted between two limit blocks on the inner side of the placement tube. A hanging plate is installed on the top of the pen shaft, and the hanging plate is located between the upper and lower limit blocks. Extrusion blocks are symmetrically installed on the bottom end of the hanging plate. The two extrusion blocks correspond to the two limit blocks respectively, and an extrusion slope is opened at the bottom end of the extrusion block.

[0011] Preferably, a top limit plate is fixedly installed at the bottom end of the fixing frame, the top limit plate includes a plate body, one end of the plate body is provided with an end inclined surface, the bottom wall of the plate body is tightly attached to the top of the top block on the horizontal plate on one side close to the fixing tube, and the bottom limit plate is fixedly installed at the bottom end of the fixing frame, and the bottom limit plate is in contact with the bottom wall of the horizontal plate on the other side.

[0012] Preferably, the rotating drive member includes a driven gear fixedly mounted on the top of the rotating shaft, one side of the driven gear is meshedly connected with a driving gear, the driving gear is fixedly connected to the output shaft of the driving motor, the driving motor is fixedly mounted on a fixed frame, and an operating button is installed on the front of the operating table.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1) During work, after sitting on the seat body, the upper contact point contacts the lower contact point to start the machine. When taking the pen holder, the pen holder clicks on the interactive question-and-answer icon to open the software. When putting the pen holder back, the pen holder clicks on the shutdown icon to shut down the operation panel. The operation of the operation panel is integrated into the necessary operation, which is convenient for farmers to use in training; 2) During operation, the placing cylinder is provided with side boxes on both sides, and the limit block is movably installed in the limit block. A pressure-bearing inclined surface is provided on the top of one end of the limit block, so that when the extrusion block exerts pressure on the limit block from top to bottom, the limit block can enter the side box, and the pen holder cannot be taken out upward, so that the pen holder can only be taken out and put in downward, so that the pen holder can click on the icon on the operation panel, which is convenient for farmers to operate; 3) During operation, when the rotating shaft is rotated, the positions of the two horizontal plates are swapped, and the horizontal plate located on the side away from the fixed tube moves to above the bottom limit plate, while the other horizontal plate moves to below the plate body under the action of the end inclined surface and the top block, so that the horizontal plate close to the fixed tube is lower than the horizontal plate away from the fixed tube, so that when the pen holder is taken away, it can move downward to click the icon, and when the pen holder is put back, the pen holder enters the placement tube, and the bottom end of the pen holder contacts the shutdown icon, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0015] In the attached picture: Figure 1 It is a structural schematic diagram of an interactive question-and-answer device for farmer training of the present invention; Figure 2 It is a schematic diagram of the structure of the seat control assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the operation control component of the present invention; Figure 4 This is a schematic diagram of the icon click unit structure of the present invention; Figure 5 It is a schematic diagram of the structure of the placement limit unit of the present invention; Figure 6 It is a schematic diagram of the structure of the click pen unit of the present invention; Figure 7 It is a schematic diagram of the structure of the top limiting plate and the bottom limiting plate of the present invention.

[0016] In the figure: 1, base; 2, operating table; 3, operating panel; 4, seat control assembly; 401, fixed cylinder; 402, movable block; 403, support rod; 404, seat body; 405, support spring; 406, guide groove; 407, lower contact; 408, guide block; 409, upper contact; 5, operation control assembly; 501, fixed frame; 502, rotating shaft; 503, driven gear; 504, driving gear; 505, icon click unit; 5051, side block; 5052, longitudinal slide groove; 5053, longitudinal slide Block; 5054, horizontal plate; 5055, return spring; 5056, top block; 506, placement limit unit; 5061, placement tube; 5062, side box; 5063, limit block; 5064, pressure inclined surface; 5065, compression spring; 507, click pen unit; 5071, pen holder; 5072, hanging plate; 5073, extrusion block; 5074, extrusion inclined surface; 508, top limit plate; 5081, plate body; 5082, end inclined surface; 509, bottom limit plate; 510, drive motor; 6, operation button. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Depend on Figure 1-7 The present invention relates to an interactive question-and-answer device for farmer training, comprising a base 1, an operating table 2 is installed on the top of the base 1, an operating panel 3 is installed on the top of the operating table 2, the operating panel 3 is used for training interaction with farmers, a seat control component 4 is installed on the top of the base 1, the seat control component 4 is used to facilitate the startup of the operating panel 3, an operation control component 5 is installed on the top of the operating table 2, the operation control component 5 is used to operate the operating panel 3, and it is convenient to open the interactive question-and-answer software and conveniently shut it down; The seat control assembly 4 includes a fixed cylinder 401 fixedly mounted on the top of the base 1, a movable block 402 is movably mounted inside the fixed cylinder 401, a guide groove 406 is symmetrically opened on the inner wall of the fixed cylinder 401, guide blocks 408 are symmetrically mounted on both sides of the movable block 402, the guide blocks 408 are slidably connected to the guide groove 406, a lower contact 407 is mounted at the bottom end of the side wall of the guide groove 406, an upper contact 409 is mounted on the movable block 402, when the bottom end of the guide block 408 contacts the inner bottom wall of the guide groove 406, the two ends of the upper contact 409 contact the two lower contacts 407 respectively, so that the operation panel 3 is powered on and turned on, a support rod 403 is mounted on the top of the movable block 402, a seat body 404 is mounted on the top of the support rod 403, a support spring 405 is fixedly mounted on the bottom end of the support rod 403, and the bottom end of the support spring 405 is fixedly connected to the inner bottom wall of the fixed cylinder 401.

[0019] The operation control assembly 5 includes a fixed frame 501 arranged on one side above the operating table 2, the fixed frame 501 and the operating table 2 are fixedly connected via a support column, a rotating shaft 502 is rotatably mounted on the fixed frame 501, an icon clicking unit 505 is mounted at the bottom end of the rotating shaft 502, a rotating driving member is mounted at the top end of the rotating shaft 502, the icon clicking unit 505 includes side blocks 5051 symmetrically mounted on both sides of the bottom end of the rotating shaft 502, a longitudinal slide groove 5052 is provided inside the side block 5051, a longitudinal slider 5053 is slidably mounted inside the longitudinal slide groove 5052, and the two longitudinal sliders 5053 are mutually A horizontal plate 5054 is installed on the side away from the fixed cylinder 401, and a reset spring 5055 is symmetrically installed at the bottom end of the longitudinal slider 5053. The bottom end of the reset spring 5055 is fixedly connected to the inner bottom wall of the longitudinal slide groove 5052. A placement limit unit 506 is installed on the horizontal plate 5054, and a top block 5056 is installed on the top of the horizontal plate 5054. An interactive question and answer software icon and a shutdown icon are set on the operation interface of the operation panel 3. The interactive question and answer software icon is located below the placement limit unit 506 on the side away from the fixed cylinder 401, and the shutdown icon is located below the placement limit unit 506 on the side close to the fixed cylinder 401.

[0020] The placement limit unit 506 includes a placement tube 5061 arranged on the horizontal plate 5054, the placement tube 5061 is located on the side of the top block 5056 away from the side block 5051, two side boxes 5062 are symmetrically installed on both sides of the side block 5051, the side boxes 5062 are connected to the placement tube 5061, and a limit block 5063 is movably installed inside the side box 5062. The limit block 5063 is located at one end of the side box 5062 and is installed with a compression spring 5065. One end of the compression spring 5065 is fixedly connected to the inner wall of the end of the side box 5062, and a compression slope 5064 is opened on the top of the other end of the limit block 5063. The click pen unit 507 is placed in the placement tube 5061 away from the side of the fixed tube 401.

[0021] The click pen unit 507 includes a pen holder 5071, which is inserted between two limit blocks 5063 on the inner side of the placement tube 5061. A hanging plate 5072 is installed on the top of the pen holder 5071, and the hanging plate 5072 is located between the upper and lower limit blocks 5063. Extrusion blocks 5073 are symmetrically installed on the bottom end of the hanging plate 5072. The two extrusion blocks 5073 correspond to the two limit blocks 5063 respectively. An extrusion slope 5074 is provided on the bottom end of the extrusion block 5073. After sitting on the seat body 404, the upper contact 409 is brought into contact with the lower contact 407 to start the machine. At the same time, when taking the pen holder 5071, the pen holder 5071 clicks on the interactive question and answer icon to open the software conveniently. When the pen holder 5071 is put back, the pen holder 5071 clicks On the shutdown icon, it is convenient to shut down the operation panel 3, and the operation of the operation panel 3 is integrated into the necessary operation, which is convenient for farmers to train and use. Side boxes 5062 are installed on the upper and lower sides of the placement tube 5061. A limit block 5063 is movably installed in the side box 5062, and a pressure inclined surface 5064 is opened on the top of one end of the limit block 5063, so that when the extrusion block 5073 exerts pressure on the limit block 5063 from top to bottom, the limit block 5063 can enter the side box 5062, and the pen holder 5071 cannot be taken out upwards, so that the pen holder 5071 can only be taken out and put in downwards, so that the pen holder 5071 can click on the icon on the operation panel 3, which is convenient for farmers to operate. The bottom end of the fixing frame 501 is fixedly installed with a top limit plate 50 8. The top limit plate 508 includes a plate body 5081, one end of which is provided with an end inclined surface 5082, the bottom wall of the plate body 5081 is in close contact with the top of the top block 5056 on the horizontal plate 5054 on one side close to the fixed cylinder 401, the bottom end of the fixed frame 501 is fixedly installed with a bottom limit plate 509, the bottom limit plate 509 is in contact with the bottom wall of the horizontal plate 5054 on the other side, the rotating driving member includes a driven gear 503 fixedly installed on the top of the rotating shaft 502, one side of the driven gear 503 is meshedly connected with a driving gear 504, the driving gear 504 is fixedly connected with the output shaft of the driving motor 510, the driving motor 510 is fixedly installed on the fixed frame 501, and an operation button 6 is installed on the front of the operating table 2, and the operation button 6 is pressed once , control the drive motor 510 to start once, and make the rotating shaft 502 rotate one hundred and eighty degrees clockwise. When the rotating shaft 502 rotates, the two horizontal plates 5054 are driven to swap positions. The horizontal plate 5054 located on the side away from the fixed cylinder 401 moves to above the bottom limit plate 509, and the other horizontal plate 5054 moves to below the plate body 5081 under the action of the end inclined surface 5082 and the top block 5056, so that the horizontal plate 5054 close to the side of the fixed cylinder 401 is lower than the horizontal plate 5054 away from the side of the fixed cylinder 401, so that the pen holder 5071 can move downward to click the icon when it is taken away, and when the pen holder 5071 is put back, the pen holder 5071 enters the placement cylinder 5061, and the bottom end of the pen holder 5071 contacts the shutdown icon, which is convenient for use.

[0022] Working principle: When it is necessary to conduct interactive Q&A for farmer training, the user sits on the seat body 404 and conducts interactive Q&A through the operation panel 3. After sitting on the seat body 404, the seat body 404 moves downward under pressure until the bottom wall of the guide block 408 contacts the inner bottom wall of the guide groove 406, so that the upper contact 409 contacts the lower contact 407, so that the operation panel 3 is powered on. When it is not needed, the user leaves the seat body 404, and the seat body 404 moves back upward under the elastic force of the support spring 405, so that the upper contact 409 is separated from the lower contact 407, so that the operation panel 3 is turned off. Since clicking is required, the pen holder 5071 is required. The pen holder 5071 is located in the placement tube 5061 on the horizontal plate 5054 on the side away from the fixed tube 401. The pen holder 5071 is pulled downward, so that the extrusion block 5073 generates pressure on the pressure inclined surface 5064 on the two limit blocks 5063 below the placement tube 5061 through the extrusion inclined surface 5074, and pushes the two limit blocks 5063 below into the side box 5062, so that the pen holder 5071 is taken out downward. When the pen holder 5071 is downwardly separated from the placement tube 5061, the pen holder 5071 clicks on the interactive question-and-answer software icon on the operation panel 3, so that the interactive question-and-answer software is opened, which is convenient for farmers to use; After use, the pen holder 5071 is inserted into the placement tube 5061 on the horizontal plate 5054 close to the fixed tube 401. During the insertion, the extrusion slope 5074 on the extrusion block 5073 exerts pressure on the pressure slope 5064 on the two limit blocks 5063 above the placement tube 5061, so that the hanging plate 5072 enters between the upper and lower limit blocks 5063. At this time, the pen holder 5071 clicks on the shutdown icon on the operation panel 3 to shut down the operation panel 3. The farmer then presses the operating button 6 once, so that the drive motor 510 is energized, causing the active gear 504 to rotate, and the active gear 504 is meshed with the driven gear 503 at the top of the rotating shaft 502, thereby driving the rotating shaft 502 to rotate, so that the horizontal plate 5054 with the pen holder 5071 inserted is rotated to the side away from the fixed cylinder 401, which is convenient for subsequent use, and the horizontal plate 5054 is moved back upward under the action of the return spring 5055, and moves to above the bottom limit plate 509, while the other horizontal plate 5054 moves to the side close to the fixed cylinder 401, and when the top block 5056 at the top of the horizontal plate 5054 passes under the board body 5081, under the action of the end inclined surface 5082, the horizontal plate 5054 moves downward to below the board body 5081, so that the two horizontal plates 5054 are at different heights, and the pen holder 5071 can be clicked on the interactive question and answer icon when it is taken out, and can be clicked on the shutdown icon when the pen holder 5071 is put back, which is convenient for use.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An interactive question-and-answer device for farmer training, comprising a base (1), characterized in that: An operating table (2) is installed on the top of the base (1), an operating panel (3) is installed on the top of the operating table (2), and the operating panel (3) is used for training and interacting with farmers; a seat control component (4) is installed on the top of the base (1), and the seat control component (4) is used to facilitate the startup of the operating panel (3); an operating control component (5) is installed on the top of the operating table (2), and the operating control component (5) is used to operate the operating panel (3); The seat control assembly (4) comprises a fixed cylinder (401) fixedly mounted on the top of the base (1), a movable block (402) being movably mounted inside the fixed cylinder (401), a guide groove (406) being symmetrically provided on the inner wall of the fixed cylinder (401), guide blocks (408) being symmetrically mounted on both sides of the movable block (402), the guide blocks (408) being slidably connected to the guide groove (406), a lower contact (407) being mounted on the bottom end of the side wall of the guide groove (406), and an upper contact (409) being mounted on the movable block (402), and when the bottom end of the guide block (408) contacts the inner bottom wall of the guide groove (406), the two ends of the upper contact (409) respectively contact the two lower contacts (407), so that the operation panel (3) is powered on and turned on.

2. The interactive question-and-answer device for farmer training according to claim 1, characterized in that: A support rod (403) is installed at the top end of the movable block (402), a seat body (404) is installed at the top end of the support rod (403), a support spring (405) is fixedly installed at the bottom end of the support rod (403), and the bottom end of the support spring (405) is fixedly connected to the inner bottom wall of the fixed cylinder (401).

3. The interactive question-answering device for farmer training according to claim 1, characterized in that: The operation control assembly (5) comprises a fixed frame (501) arranged on one side above the operating table (2); the fixed frame (501) and the operating table (2) are fixedly connected via a support column; a rotating shaft (502) is rotatably mounted on the fixed frame (501); an icon clicking unit (505) is mounted at the bottom end of the rotating shaft (502); and a rotating driving member is mounted at the top end of the rotating shaft (502).

4. The interactive question-and-answer device for farmer training according to claim 3, characterized in that: The icon click unit (505) comprises side blocks (5051) symmetrically mounted on both sides of the bottom end of the rotating shaft (502); a longitudinal slide groove (5052) is provided inside the side block (5051); a longitudinal slider (5053) is slidably mounted inside the longitudinal slide groove (5052); a transverse plate (5054) is mounted on the sides of the two longitudinal sliders (5053) that are away from each other; a return spring (5055) is symmetrically mounted on the bottom end of the longitudinal slider (5053); the bottom end of the return spring (5055) is fixedly connected to the inner bottom wall of the longitudinal slide groove (5052); a placement limit unit (506) is mounted on the transverse plate (5054); and a top block (5056) is mounted on the top end of the transverse plate (5054).

5. The interactive question-answering device for farmer training according to claim 4, characterized in that: An interactive question-and-answer software icon and a shutdown icon are provided on the operation interface of the operation panel (3); the interactive question-and-answer software icon is located below the placement limit unit (506) on the side away from the fixed cylinder (401), and the shutdown icon is located below the placement limit unit (506) on the side close to the fixed cylinder (401).

6. The interactive question-answering device for farmer training according to claim 4, characterized in that: The placement limiting unit (506) comprises a placement tube (5061) arranged on the horizontal plate (5054), the placement tube (5061) being located on a side of the top block (5056) away from the side block (5051), two side boxes (5062) being symmetrically installed on both sides of the side block (5051), the side boxes (5062) being connected to the placement tube (5061), a limiting block (5063) being movably installed inside the side box (5062), a compression spring (5065) being installed at one end of the limiting block (5063) located inside the side box (5062), one end of the compression spring (5065) being fixedly connected to the inner wall of the end of the side box (5062), a pressure inclined surface (5064) being provided on the top of the other end of the limiting block (5063), and a click pen unit (507) being placed in the placement tube (5061) on the side away from the fixed tube (401).

7. The interactive question-answering device for farmer training according to claim 6, characterized in that: The click pen unit (507) comprises a pen holder (5071), the pen holder (5071) being inserted between two limit blocks (5063) inside the placement tube (5061), a hanging plate (5072) being installed at the top end of the pen holder (5071), the hanging plate (5072) being located between the upper and lower limit blocks (5063), an extrusion block (5073) being symmetrically installed at the bottom end of the hanging plate (5072), the two extrusion blocks (5073) respectively corresponding to the two limit blocks (5063), and an extrusion inclined surface (5074) being provided at the bottom end of the extrusion block (5073).

8. The interactive question-answering device for farmer training according to claim 4, characterized in that: A top stop plate (508) is fixedly mounted on the bottom end of the fixing frame (501), the top stop plate (508) comprising a plate body (5081), one end of the plate body (5081) being provided with an end inclined surface (5082), the bottom wall of the plate body (5081) being in close contact with the top end of a top block (5056) on a side of a horizontal plate (5054) close to the fixing cylinder (401), and a bottom stop plate (509) is fixedly mounted on the bottom end of the fixing frame (501), the bottom stop plate (509) being in contact with the bottom wall of the other side horizontal plate (5054).

9. The interactive question-answering device for farmer training according to claim 3, characterized in that: The rotary drive member comprises a driven gear (503) fixedly mounted on the top of the rotating shaft (502); one side of the driven gear (503) is meshedly connected with a driving gear (504); the driving gear (504) is fixedly connected to an output shaft of a driving motor (510); the driving motor (510) is fixedly mounted on a fixing frame (501); and an operating button (6) is mounted on the front of the operating table (2).

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