CN109493689B - Fan-shaped statistical chart demonstration teaching board for management - Google Patents
Fan-shaped statistical chart demonstration teaching board for management Download PDFInfo
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- CN109493689B CN109493689B CN201811530713.3A CN201811530713A CN109493689B CN 109493689 B CN109493689 B CN 109493689B CN 201811530713 A CN201811530713 A CN 201811530713A CN 109493689 B CN109493689 B CN 109493689B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
Abstract
The invention relates to a statistical chart demonstration teaching board, in particular to a management sector statistical chart demonstration teaching board. Therefore, the technical problems of the invention are as follows: the utility model provides a can be clearer, fast and convenient with the fan-shaped statistical chart demonstration teaching board of management of data expression. The technical implementation scheme of the invention is as follows: a sector statistical chart demonstrating teaching board for management comprises a mounting frame, a fixing frame, a compression cylinder, a first piston, a sleeve, a lifting rod, a mounting plate, a clamping rod, a first spring, a bearing seat and the like; the compression cylinder is connected with the leading flank bottom of mounting bracket, and the top of mounting bracket is connected with the mount, and the top right part of mounting bracket is equipped with the bearing frame. According to the invention, the user steps down on the pedal to enable the first piston to compress liquid in the compression cylinder to enter the connecting cylinder, so that the liquid pushes up the second piston, the second piston drives the first movable rod to move upwards, the first movable rod moves upwards to drive the third piston to move upwards, and the liquid in the cylindrical cylinder enters the conveying pipe.
Description
Technical Field
The invention relates to a statistical chart demonstration teaching board, in particular to a management sector statistical chart demonstration teaching board.
Background
In order to enable employees of a company to know the change of the data of the company more clearly, a boss of the company generally changes the sector statistical chart to express the data more intuitively, a circular sector statistical disk is generally installed in a conference room of the company, a pointer and a mark point are arranged on the circular sector statistical disk, the boss moves the pointer to the mark position when wanting to express certain data, and therefore the efficiency is too low when moving the pointer at a next time, and the position of the pointer can be moved by external factors.
Disclosure of Invention
In order to overcome the defects that the efficiency is too low and the position of the pointer can be moved by external factors after the boss moves the pointer one by one, the technical problem of the invention is as follows: the utility model provides a can be clearer, fast and convenient with the fan-shaped statistical chart demonstration teaching board of management of data expression.
The technical implementation scheme of the invention is as follows: a sector statistical chart demonstrating teaching board for management comprises a mounting frame, a fixing frame, a compression cylinder, a first piston, a sleeve, a lifting rod, a mounting plate, a clamping rod, a first spring, a bearing seat, a rotating shaft, a gear, a pedal, an elastic piece, a slide rail, a slide block, a connecting cylinder, a second piston, a guide cylinder, a first moving rod, a cylindrical cylinder, a third piston, a second spring, an annular cylinder, a baffle, a fourth piston, a connecting pipe, a conveying pipe and a marking sticker, wherein the compression cylinder is connected to the bottom of the front side face of the mounting frame, the fixing frame is connected to the top of the mounting frame, the bearing seat is arranged on the right portion above the mounting frame, the rotating shaft is in interference connection with the bearing seat, the gear is connected to the rotating shaft, the pedal is located on the rear side face of the gear, the, one end of a first spring is connected with the mounting frame, the clamping rod is matched with the gear, a slide rail is arranged at the left part of the pedal, a slide block is connected on the slide rail in a sliding mode, an elastic part is connected below the pedal, the bottom of the elastic part is connected with the mounting frame, a lifting rod is connected on the slide block in a rotating mode, a sleeve is embedded in the middle of the mounting frame, the lifting rod penetrates through the sleeve and the top of a compression cylinder, the lifting rod is located in the compression cylinder, a first piston is connected at the bottom end of the lifting rod, a connecting cylinder is connected at the lower part of the left side of the compression cylinder, a cylindrical cylinder is connected at the right part of the mounting frame, the bottom of the cylindrical cylinder is communicated with the top of the connecting cylinder, a second piston is arranged in the connecting cylinder, a guide cylinder is connected at the upper part of the connecting cylinder, a first moving rod is connected above the second piston, the first moving rod penetrates through the guide cylinder, a, the top and the third piston of second spring are connected, and the left part of mount is connected with annular jar, and upper portion is connected with the baffle in the annular jar, is equipped with the fourth piston in the annular jar, and the top intermediate junction of annular jar has the connecting pipe, and the connecting pipe passes annular jar, and the top of cylindricality jar is connected with the conveyer pipe, and the one end and the top of connecting pipe of conveyer pipe are connected, and the even interval connection in front side of annular jar has the mark sticker.
In a preferred embodiment of the invention, the device further comprises a mounting seat, a swinging rod, a foot plate, an elastic tube, a conveying tube, a fifth piston, a second movable rod, a square cylinder, a sixth piston and a roller, wherein the right side of the bottom of the mounting seat is provided with a groove, the right side of the inner bottom of the groove is connected with the mounting seat, the mounting seat is rotatably provided with the swinging rod, the right end of the swinging rod is connected with the foot plate, the left part below the swinging rod is connected with the elastic tube, the bottom end of the elastic tube is connected with the left side of the inner bottom of the groove, the mounting seat above the groove is embedded with the conveying tube, the conveying tube is communicated with the groove, the left part of the swinging rod is rotatably connected with the second movable rod, the top end of the second movable rod is rotatably connected with the fifth piston, the fifth piston is positioned in the conveying tube, the top of the conveying tube is connected, the roller is contacted with the clamping rod.
When the invention is needed to be used, a user steps down on the pedal to extrude the elastic piece, the pedal moves downwards to drive the rotating shaft to rotate reversely, the rotating shaft rotates reversely to drive the gear to rotate reversely, the clamping rod is clamped on the tooth corresponding to the gear under the action of the first spring, the pedal moves downwards to drive the lifting rod to move downwards through the sliding block, the sliding block slides on the sliding rail, the sleeve plays a role in guiding, the lifting rod moves downwards to drive the first piston to move downwards so as to extrude the liquid in the compression cylinder, the liquid is extruded to enter the connecting cylinder so as to push the second piston upwards, the second piston moves upwards to drive the first moving rod, the first moving rod moves upwards to drive the third piston to move upwards and stretch the second spring, so that the liquid in the cylindrical cylinder enters the conveying pipe upwards, then enters the connecting pipe, then enters the annular cylinder through the connecting pipe, and the fourth piston moves along with the increase of the liquid, when the fourth piston moves to a proper position, the user does not step down the pedal any more, and thus the user can display the data which the user wants to express. After the show is accomplished, the user pulls the kelly right, tensile first spring, make the kelly break away from the gear, this moment under the effect of elastic component, the footboard and above parts reset, the lifter drives the piston upwards and resets, no longer extrude the liquid in the compression jar, under the effect of second spring, first carriage release lever and upper portion spare reset, the liquid in the extrusion cylindricality jar that makes progress again, liquid in the annular jar can get back to the cylindricality jar through connecting pipe and conveyer pipe this moment, make the position of fourth piston reset, the user loosens the kelly this moment, under the effect of first spring, the kelly resets left and cooperates with the gear, so can more clearly quick express data.
When the pedal is reset, a user steps down the right part of the foot plate to tilt the left part of the foot plate upwards and stretch the elastic tube, the left part of the foot plate tilts upwards to drive the second movable rod to move upwards, the second movable rod moves upwards to drive the fifth piston to move upwards, thereby compressing the gas in the conveying pipe to cause the sixth piston to move rightwards, the sixth piston moves rightwards to drive the roller to move rightwards, so as to push the clamping rod to the right, make the clamping rod separate from the gear and stretch the first spring, when the pedal is reset, the user can not step down the right part of the pedal any more, under the action of the elastic tube, the left part of the foot plate drives the fifth piston to move downwards through the second movable rod, so as to drive the sixth piston and the roller to move leftwards and reset, under the effect of first spring, the kelly resets and cooperates with the gear, so can replace the user with the hand pulling kelly, messenger's fourth piston that can be more convenient resets.
The invention has the beneficial effects that: according to the invention, the user steps down on the pedal to enable the first piston to compress liquid in the compression cylinder to enter the connecting cylinder, so that the liquid pushes up the second piston, the second piston drives the first movable rod to move upwards, the first movable rod moves upwards to drive the third piston to move upwards, the liquid in the cylindrical cylinder enters the conveying pipe and is conveyed into the connecting pipe through the conveying pipe, the liquid is conveyed into the annular cylinder through the connecting pipe, the fourth piston moves to a proper position through the liquid, and then the user steps on the foot plate to enable the clamping rod to be separated from the gear, so that the pedal is reset, and the data can be more clearly, quickly and conveniently expressed.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a partially enlarged schematic view of the present invention.
Fig. 3 is a partial schematic front view of the present invention.
Wherein the figures include the following reference numerals: 1. mounting frame, 101, fixing frame, 2, compression cylinder, 3, first piston, 4, sleeve, 5, lifting rod, 6, mounting plate, 7, clamping rod, 8, first spring, 9, bearing seat, 10, rotating shaft, 11, gear, 12, pedal, 13, elastic part, 14, sliding rail, 15, sliding block, 151, connecting cylinder, 16, second piston, 17, guide cylinder, 18, first moving rod, 19, cylindrical cylinder, 20, third piston, 21, second spring, 22, annular cylinder, 23, baffle, 24, fourth piston, 25, connecting pipe, 26, conveying pipe, 27, marking sticker, 28, groove, 29, mounting seat, 30, swinging rod, 31, foot plate, 32, elastic pipe, 33, conveying pipe, 34, fifth piston, 35, second moving rod, 36, square cylinder, 37, sixth piston, 38, roller.
Detailed Description
It is to be noted that, in the case of the different described embodiments, identical components are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to identical components having the same reference numerals or the same component names in a meaningful manner. The positional references selected in the description, such as upper, lower, lateral, etc., refer also to the directly described and illustrated figures and are to be read into the new position in the sense of a change in position.
Example 1
A sector statistical chart demonstrating teaching board for management science is shown in figures 1-3 and comprises an installation frame 1, a fixed frame 101, a compression cylinder 2, a first piston 3, a sleeve 4, a lifting rod 5, an installation plate 6, a clamping rod 7, a first spring 8, a bearing seat 9, a rotating shaft 10, a gear 11, a pedal 12, an elastic part 13, a sliding rail 14, a sliding block 15, a connection cylinder 151, a second piston 16, a guide cylinder 17, a first moving rod 18, a cylindrical cylinder 19, a third piston 20, a second spring 21, an annular cylinder 22, a baffle 23, a fourth piston 24, a connection pipe 25, a conveying pipe 26 and a mark sticker 27, wherein the compression cylinder 2 is connected to the bottom of the front side face of the installation frame 1, the fixed frame 101 is connected to the top of the installation frame 1, the bearing seat 9 is arranged on the right portion above the installation frame 1, a rotating shaft 10 is connected in the bearing seat 9 in an interference mode, the rotating shaft, the pedal 12 is positioned on the rear side surface of the gear 11, the upper part of the right side of the mounting rack 1 is connected with the mounting board 6, the mounting board 6 is rotatably connected with the clamping rod 7, the clamping rod 7 is connected with the first spring 8, one end of the first spring 8 is connected with the mounting rack 1, the clamping rod 7 is matched with the gear 11, the left part of the pedal 12 is provided with the slide rail 14, the slide rail 14 is slidably connected with the slide block 15, the lower part of the pedal 12 is connected with the elastic part 13, the bottom part of the elastic part 13 is connected with the mounting rack 1, the slide block 15 is rotatably connected with the lifting rod 5, the middle part of the mounting rack 1 is embedded with the sleeve 4, the lifting rod 5 penetrates through the sleeve 4 and the top part of the compression cylinder 2, the lifting rod 5 is positioned in the compression cylinder 2, the bottom end of the lifting rod 5 is connected with the first piston 3, the lower part of the left side of, the connecting cylinder 151 is internally provided with a second piston 16, the upper part of the connecting cylinder 151 is connected with a guide cylinder 17, the upper part of the second piston 16 is connected with a first moving rod 18, the first moving rod 18 penetrates through the guide cylinder 17, the top part of the first moving rod 18 is connected with a third piston 20, the upper part of the first moving rod 18 is wound with a second spring 21, the bottom end of the second spring 21 is connected with the guide cylinder 17, the top end of the second spring 21 is connected with the third piston 20, the left part of the fixing frame 101 is connected with an annular cylinder 22, the upper part in the annular cylinder 22 is connected with a baffle 23, the annular cylinder 22 is internally provided with a fourth piston 24, the middle part of the top part of the annular cylinder 22 is connected with a connecting pipe 25, the connecting pipe 25 penetrates through the annular cylinder 22, the top part of the cylindrical cylinder 19 is connected with a conveying pipe 26, one end of the conveying pipe 26 is connected with.
Example 2
A sector statistical chart demonstrating teaching board for management science is shown in figures 1-3 and comprises an installation frame 1, a fixed frame 101, a compression cylinder 2, a first piston 3, a sleeve 4, a lifting rod 5, an installation plate 6, a clamping rod 7, a first spring 8, a bearing seat 9, a rotating shaft 10, a gear 11, a pedal 12, an elastic part 13, a sliding rail 14, a sliding block 15, a connection cylinder 151, a second piston 16, a guide cylinder 17, a first moving rod 18, a cylindrical cylinder 19, a third piston 20, a second spring 21, an annular cylinder 22, a baffle 23, a fourth piston 24, a connection pipe 25, a conveying pipe 26 and a mark sticker 27, wherein the compression cylinder 2 is connected to the bottom of the front side face of the installation frame 1, the fixed frame 101 is connected to the top of the installation frame 1, the bearing seat 9 is arranged on the right portion above the installation frame 1, a rotating shaft 10 is connected in the bearing seat 9 in an interference mode, the rotating shaft, the pedal 12 is positioned on the rear side surface of the gear 11, the upper part of the right side of the mounting rack 1 is connected with the mounting board 6, the mounting board 6 is rotatably connected with the clamping rod 7, the clamping rod 7 is connected with the first spring 8, one end of the first spring 8 is connected with the mounting rack 1, the clamping rod 7 is matched with the gear 11, the left part of the pedal 12 is provided with the slide rail 14, the slide rail 14 is slidably connected with the slide block 15, the lower part of the pedal 12 is connected with the elastic part 13, the bottom part of the elastic part 13 is connected with the mounting rack 1, the slide block 15 is rotatably connected with the lifting rod 5, the middle part of the mounting rack 1 is embedded with the sleeve 4, the lifting rod 5 penetrates through the sleeve 4 and the top part of the compression cylinder 2, the lifting rod 5 is positioned in the compression cylinder 2, the bottom end of the lifting rod 5 is connected with the first piston 3, the lower part of the left side of, the connecting cylinder 151 is internally provided with a second piston 16, the upper part of the connecting cylinder 151 is connected with a guide cylinder 17, the upper part of the second piston 16 is connected with a first moving rod 18, the first moving rod 18 penetrates through the guide cylinder 17, the top part of the first moving rod 18 is connected with a third piston 20, the upper part of the first moving rod 18 is wound with a second spring 21, the bottom end of the second spring 21 is connected with the guide cylinder 17, the top end of the second spring 21 is connected with the third piston 20, the left part of the fixing frame 101 is connected with an annular cylinder 22, the upper part in the annular cylinder 22 is connected with a baffle 23, the annular cylinder 22 is internally provided with a fourth piston 24, the middle part of the top part of the annular cylinder 22 is connected with a connecting pipe 25, the connecting pipe 25 penetrates through the annular cylinder 22, the top part of the cylindrical cylinder 19 is connected with a conveying pipe 26, one end of the conveying pipe 26 is connected with.
The device also comprises a mounting seat 29, a swing rod 30, a foot plate 31, an elastic tube 32, a conveying tube 33, a fifth piston 34, a second moving rod 35, a square cylinder 36, a sixth piston 37 and a roller 38, wherein the right side of the bottom of the mounting seat 1 is provided with a groove 28, the right side of the inner bottom of the groove 28 is connected with the mounting seat 29, the swing rod 30 is rotatably mounted on the mounting seat 29, the right end of the swing rod 30 is connected with the foot plate 31, the left part below the swing rod 30 is connected with the elastic tube 32, the bottom end of the elastic tube 32 is connected with the left side of the inner bottom of the groove 28, the conveying tube 33 is embedded on the mounting seat 1 above the groove 28, the conveying tube 33 is communicated with the groove 28, the left part of the swing rod 30 is rotatably connected with the second moving rod 35, the top end of the second moving rod 35 is rotatably connected with the fifth piston 34, the fifth piston 34 is positioned in the conveying tube 33, the top of the conveying, a roller 38 is rotatably connected to the right side of the sixth piston 37, and the roller 38 is in contact with the catch lever 7.
When the invention is needed to be used, a user steps down on the pedal 12 to extrude the elastic piece 13, the pedal 12 moves downwards to drive the rotating shaft 10 to rotate reversely, the rotating shaft 10 rotates reversely to drive the gear 11 to rotate reversely, the clamping rod 7 is clamped on the tooth corresponding to the gear 11 under the action of the first spring 8, the pedal 12 moves downwards to drive the lifting rod 5 to move downwards through the slide block 15, the slide block 15 slides on the slide rail 14, the sleeve 4 plays a guiding role, the lifting rod 5 moves downwards to drive the first piston 3 to move downwards so as to extrude the liquid in the compression cylinder 2, the liquid is extruded to enter the connecting cylinder 151 so as to push the second piston 16 upwards, the second piston 16 moves upwards to drive the first moving rod 18, the first moving rod 18 moves upwards to drive the third piston 20 to move upwards and stretch the second spring 21, so that the liquid in the cylindrical cylinder 19 enters the conveying pipe 26 upwards and then enters the connecting pipe 25 through the conveying pipe 26, and then enters the annular cylinder 22 through the connecting pipe 25, the fourth piston 24 moves along with the increase of the liquid, and when the fourth piston 24 moves to a proper position, the user does not step down the pedal 12 any more, so that the user can display the data which the user wants to express. After the exhibition is completed, the user pulls the clamping rod 7 rightwards, the first spring 8 is stretched, the clamping rod 7 is separated from the gear 11, at the moment, under the action of the elastic part 13, the pedal 12 and the parts above the pedal are reset, the lifting rod 5 drives the piston to reset upwards, the liquid in the compression cylinder 2 is not extruded any more, under the action of the second spring 21, the first moving rod 18 and the parts above the first moving rod reset, the liquid in the cylindrical cylinder 19 is not extruded upwards, at the moment, the liquid in the annular cylinder 22 returns to the cylindrical cylinder 19 through the connecting pipe 25 and the conveying pipe 26, the position of the fourth piston 24 is reset, at the moment, the clamping rod 7 is loosened by the user, under the action of the first spring 8, the clamping rod 7 resets leftwards and is matched with the gear 11, and the data can be expressed more clearly and more rapidly.
When the pedal 12 is reset, the user steps down on the right part of the foot plate 31 to tilt the left part of the foot plate 31 upwards, the elastic tube 32 is stretched, the left part of the foot plate 31 tilts upwards to drive the second movable rod 35 to move upwards, the second movable rod 35 moves upwards to drive the fifth piston 34 to move upwards, so that the gas in the conveying tube 33 is compressed to drive the sixth piston 37 to move rightwards, the sixth piston 37 moves rightwards to drive the roller 38 to move rightwards, so that the clamping rod 7 is separated from the gear 11 and stretches the first spring 8, after the pedal 12 is reset, the user does not step down on the right part of the foot plate 31, the left part of the foot plate 31 drives the fifth piston 34 to move downwards through the second movable rod 35 under the action of the elastic tube 32 to drive the sixth piston 37 and the roller 38 to move leftwards to reset, the clamping rod 7 resets and is matched with the gear 11 under the action of the first spring 8, therefore, the clamping rod 7 can be pulled by a user, and the fourth piston 24 can be reset more conveniently.
While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (1)
1. A sector statistical chart demonstration teaching board for management comprises an installation frame (1), a fixed frame (101), a compression cylinder (2), a first piston (3), a sleeve (4), a lifting rod (5), an installation plate (6), a clamping rod (7), a first spring (8), a bearing seat (9), a rotating shaft (10), a gear (11), a pedal (12), an elastic piece (13), a sliding rail (14) and a sliding block (15), wherein the compression cylinder (2) is connected to the bottom of the front side face of the installation frame (1), the fixed frame (101) is connected to the top of the installation frame (1), the bearing seat (9) is arranged on the right portion above the installation frame (1), the rotating shaft (10) is connected in an interference mode, the gear (11) is connected to the rotating shaft (10), the pedal (12) is located on the rear side face of the gear (11), the installation plate (6), rotatable formula is connected with kelly (7) on mounting panel (6), be connected with first spring (8) on kelly (7), the one end and the mounting bracket (1) of first spring (8) are connected, kelly (7) and gear (11) cooperation, the left part of footboard (12) is equipped with slide rail (14), slidable connection has slider (15) on slide rail (14), elastic component (13) are connected to the below of footboard (12), the bottom and mounting bracket (1) of elastic component (13) are connected, rotatable connection has lifter (5) on slider (15), sleeve (4) have been inlayed at the middle part of mounting bracket (1), lifter (5) pass the top of sleeve (4) and compression cylinder (2), lifter (5) are located compression cylinder (2), the bottom of lifter (5) is connected with first piston (3), a serial communication port, still including connecting cylinder (151), second piston (16), The compression cylinder comprises a guide cylinder (17), a first moving rod (18), a cylindrical cylinder (19), a third piston (20), a second spring (21), an annular cylinder (22), a baffle (23), a fourth piston (24), a connecting pipe (25), a conveying pipe (26) and a mark sticker (27), wherein the lower part of the left side of the compression cylinder (2) is connected with a connecting cylinder (151), the right part of the mounting frame (1) is connected with the cylindrical cylinder (19), the bottom of the cylindrical cylinder (19) is communicated with the top of the connecting cylinder (151), the second piston (16) is arranged in the connecting cylinder (151), the upper part of the connecting cylinder (151) is connected with the guide cylinder (17), the first moving rod (18) is connected above the second piston (16), the first moving rod (18) penetrates through the guide cylinder (17), the top of the first moving rod (18) is connected with the third piston (20), the second spring (21) is wound on the upper part of the first moving rod (18), the bottom end of a second spring (21) is connected with a guide cylinder (17), the top end of the second spring (21) is connected with a third piston (20), the left part of a fixing frame (101) is connected with an annular cylinder (22), the upper part in the annular cylinder (22) is connected with a baffle (23), a fourth piston (24) is arranged in the annular cylinder (22), the middle of the top of the annular cylinder (22) is connected with a connecting pipe (25), the connecting pipe (25) penetrates through the annular cylinder (22), the top of a cylindrical cylinder (19) is connected with a conveying pipe (26), one end of the conveying pipe (26) is connected with the top of the connecting pipe (25), and mark stickers (27) are uniformly connected to the front side of the annular cylinder (22) at intervals; the device is characterized by further comprising a mounting seat (29), a swing rod (30), a foot plate (31), an elastic pipe (32), a conveying pipe (33), a fifth piston (34), a second moving rod (35), a square cylinder (36), a sixth piston (37) and rollers (38), wherein a groove (28) is formed in the right side of the bottom of the mounting frame (1), the mounting seat (29) is connected to the right side of the inner bottom of the groove (28), the swing rod (30) is rotatably mounted on the mounting seat (29), the foot plate (31) is connected to the right end of the swing rod (30), the elastic pipe (32) is connected to the left portion of the lower portion of the swing rod (30), the bottom end of the elastic pipe (32) is connected to the left side of the inner bottom of the groove (28), the conveying pipe (33) is embedded on the mounting frame (1) above the groove (28), the conveying pipe (33) is communicated with the groove (28), the second moving rod (35) is rotatably, the top end of the second moving rod (35) is rotatably connected with a fifth piston (34), the fifth piston (34) is located in the conveying pipe (33), the top of the conveying pipe (33) is connected with a square cylinder (36), a sixth piston (37) is arranged in the square cylinder (36), a roller (38) is rotatably connected to the right side of the sixth piston (37), and the roller (38) is in contact with the clamping rod (7).
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| CN207380945U (en) * | 2017-04-12 | 2018-05-18 | 陕西服装工程学院 | A kind of Financial Management Teaching shows device with figure |
| CN206907292U (en) * | 2017-05-24 | 2018-01-19 | 云南师范大学 | A kind of economy class cake chart analytical equipment |
| CN107437355A (en) * | 2017-09-30 | 2017-12-05 | 张坤 | Statistics figure shows instructional device |
| CN207008904U (en) * | 2017-09-30 | 2018-02-13 | 邯郸学院 | Statistical graph exhibiting device |
| CN207676559U (en) * | 2017-10-24 | 2018-07-31 | 济宁市技师学院 | Hydraulic transmission principle apparatus for demonstrating |
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| CN109493689A (en) | 2019-03-19 |
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Effective date of registration: 20220506 Address after: 528300 room 1301, building B2, Zongde Service Center (German port), No. 6, Baihe Road, Foshan new town, Lecong Town, Shunde District, Foshan City, Guangdong Province (residence declaration) Patentee after: Foshan Shidai Nianhua advertising media Co.,Ltd. Address before: 510403 room 2601, 26 / F, 268 Sanyuanli Avenue, Baiyun District, Guangzhou City, Guangdong Province Patentee before: Li Zhijie |