CN112477475A

CN112477475A - Human resource management teaching device

Info

Publication number: CN112477475A
Application number: CN202011457570.5A
Authority: CN
Inventors: 张燕; 符臻臻; 李静
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-03-12

Abstract

A human resource management teaching device is characterized in that a chalk box is fixedly connected to the left side of the upper end of an operating plate, an opening is formed in the lower end of the interior of the chalk box, a roller is rotatably connected to the opening, a driving device capable of controlling the roller to rotate forwards and backwards repeatedly is mounted at the left end of the chalk box, a first display plate is fixedly connected to the outer end of a mounting plate respectively, and a second display plate capable of being turned over is hinged to the joint of the first display plate and the mounting plate respectively; when the device uses chalk, the roller can be controlled to rotate to enable the chalk in the roller to fall out of the chalk box, then the roller resets when rotating reversely, the next chalk can enter the roller again to wait for the next use, the chalk box can fully protect the chalk, and the use of the chalk can be greatly saved; first show board and second show board are used for writing and show the data through the chalk, and clamping device can carry out the centre gripping to the paper data and fix, and the user can remove clamping device, convenience simple to use according to the size of data.

Description

Human resource management teaching device

Technical Field

The invention relates to the field of medical equipment, in particular to a human resource management teaching device.

Background

Human resource management is an upgrade of personnel management, which refers to a general term of a series of activities for effectively utilizing relevant human resources inside and outside an organization through management forms such as recruitment, selection, training, consideration and the like under the guidance of economics and human thought, meeting the requirements of the current and future development of the organization and ensuring the achievement of an organization target and the maximization of member development, a human resource management subject is also established in a teaching scheme of university at present in order to cultivate corresponding talents, a teaching board used in teaching is usually fixed and immovable, as more students are oversize, students with poorer eyesight or lower height cannot conveniently and completely watch and learn the knowledge taught on the teaching board, and in order to enable the students to clearly see the knowledge taught by teachers, a movable display board is placed in a classroom to facilitate the study of students at present, but the removal show board structure that uses at present is fairly simple, and the function is comparatively single to still generally use the chalk teaching at present, remove the show board when the removal chalk very easily drop and lead to the chalk fracture, lead to many chalks to become the chalk end and can't use, caused the waste of a large amount of teaching resources.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the human resource management teaching device which has various functions and simple operation, can fully avoid the waste of teaching resources and effectively solves the problems in the background technology.

In order to solve the problems, the invention adopts the technical scheme that:

a human resource management teaching device comprises a bottom plate, wherein an operation plate is fixedly connected to the upper side of the bottom plate, an outer box is fixedly connected to the middle of the upper end of the operation plate, a placing box capable of sliding outwards is slidably connected to the inside of the outer box, a chalk box is fixedly connected to the left side of the upper end of the operation plate, an opening is formed in the lower end of the inside of the chalk box, a roller is rotatably connected to the opening, a driving device capable of controlling the roller to rotate forwards and backwards repeatedly is installed at the left end of the chalk box, a rotating plate capable of rotating intermittently is rotatably connected to the upper end of the outer box, a central rod is fixedly connected to the middle of the rotating plate, three installation rods are respectively arranged on the periphery of the central rod, the bottoms of the installation rods are respectively fixedly connected with the rotating plate, installation plates are respectively rotatably connected to the surfaces of the installation rods, and first display, the joint of the first display board and the mounting plate is respectively hinged with a second display board which can turn over, the upper end of the central rod is rotatably connected with a rotating connecting plate, and when the rotating connecting plate rotates, a structure that a plurality of second display boards turn over synchronously can be formed; the upper side and the lower side of the first display board and the second display board are respectively connected with a plurality of clamping devices in a sliding mode.

Preferably, the driving device comprises a swinging rod capable of swinging back and forth, the middle part of the swinging rod is rotatably connected with the surface of the chalk box, a reciprocating rack is arranged on the lower side of the swinging rod, the reciprocating rack is slidably connected with the surface of the chalk box, a first matching pin shaft is fixedly connected with the middle part of the left end of the reciprocating rack, the first matching pin shaft is slidably connected with the lower side of the surface of the swinging rod, and a structure that the reciprocating rack moves back and forth in a reciprocating manner can be formed when the swinging rod swings back and forth; the downside meshing of reciprocal rack has reciprocating gear, reciprocating gear rotates to be connected the surface of chalk box, reciprocating gear's the coaxial rigid coupling of right-hand member has the second driving pulley, the surface cover of second driving pulley has the second drive belt, the coaxial rigid coupling in left side of cylinder has first driving pulley, first driving pulley is located the outside of chalk box, the other end of second drive belt with first driving pulley cup joints.

Preferably, a spring coiling box is fixedly connected to the upper side of the left end of the chalk box, an outer shell is fixedly connected to the left end of the spring coiling box, a coil spring is arranged in the spring coiling box, an inner shaft is fixedly connected to the middle of the coil spring, the outer end of the coil spring is fixedly connected to the inner wall of the spring coiling box, two ends of the inner shaft are respectively rotatably connected to the inner wall of the spring coiling box, the left end of the inner shaft penetrates through the spring coiling box and the outer shell, and a contraction knob is fixedly connected to the left end of the inner shaft; the surface of the inner shaft is fixedly connected with a ratchet wheel, the ratchet wheel is positioned in the shell, a ratchet block is meshed with the upper side of the ratchet wheel and is in sliding connection with the inner wall of the shell, the upper end of the ratchet block is in sliding connection with a sliding rod, the upper end of the sliding rod is fixedly connected with the inner wall of the shell, a meshing spring is sleeved on the surface of the sliding rod, two ends of the meshing spring are respectively in contact with the ratchet block and the inner wall of the shell, a first one-way bearing is fixedly connected to the surface of the inner shaft on the left side of the ratchet wheel, a poking rod is fixedly connected to the surface of the first one-way bearing, and the upper end of the poking rod is in sliding connection with the upper;

the left end fixedly connected with of ratchet piece has first cooperation rack, the left end meshing of first cooperation rack has the switching-over gear, the switching-over gear rotates to be connected the shell inner wall, the left side meshing of switching-over gear has second cooperation rack, second cooperation rack sliding connection be in the inner wall of shell, the upper end fixedly connected with connecting axle of second cooperation rack, run through the upper end of connecting axle the shell and the upper end fixedly connected with button of connecting axle.

Preferably, the closing cap has been placed to the upper end of chalk box, the inside bottom of chalk box with the opening downside chalk box inner wall all is the inclined plane structure, the lower extreme rear side of chalk box is opened and is equipped with the storage storehouse, the opening part sliding connection of storing the storehouse has the shielding plate that can remove to the left side.

Preferably, the upper end of the mounting plate is respectively connected with a moving plate in a sliding manner, the inner end of the moving plate is respectively hinged with a first linkage rod, the other end of the first linkage rod is respectively hinged with the rotating connecting plate, and the hinged joint of the first linkage rod and the rotating connecting plate is respectively coaxial with the mounting rod; the upper end of the movable plate is fixedly connected with a stop rack respectively, the upper end surface of the movable plate is connected with a stop box respectively in a sliding manner, a second stop block meshed with the stop rack is connected in the stop box in a sliding manner, the front end and the rear end of the second stop block are connected with limit rods respectively in a sliding manner, the upper end and the lower end of each limit rod are fixedly connected with the inner wall of the stop box respectively, second stop springs are sleeved on the surfaces of the limit rods respectively, and the two ends of each second stop spring are in contact with the surface of the second stop block and the inner wall of the stop box respectively; the upper end of the locking box is hinged with a second linkage rod, the other end of the second linkage rod is hinged with an installation sliding block, the upper end of the second display board and the position of the central rod in the opposite direction are fixedly connected with protruding blocks, the upper ends of the protruding blocks are respectively provided with inclined installation sliding grooves, the installation sliding blocks are respectively in sliding connection with the installation sliding grooves, the upper ends of the installation sliding blocks are provided with threaded holes up and down, and the installation sliding blocks are in threaded connection with second fixing bolts through the threaded holes.

Preferably, the surface middle part of mounting panel is close to the rectangular hole has been seted up to one side of installation pole, the surface difference fixedly connected with stop gear of installation pole, stop gear is located respectively between the rectangular hole, the surface of stop gear meshes respectively has first stop block, first stop block respectively with rectangular hole surface sliding connection, the outer end of first stop block respectively fixedly connected with first stop spring, the other end of first stop spring respectively with rectangular hole inner wall fixed connection.

Preferably, a grooved pulley is coaxially and fixedly connected to the middle of the lower end of the rotating plate, a driving thumb wheel is engaged with the right side of the grooved pulley, the driving thumb wheel is rotatably connected with the upper end surface of the outer box, a second connecting belt pulley is coaxially and fixedly connected to the lower side of the driving thumb wheel, a first connecting belt pulley is rotatably connected to the lower side of the right end surface of the outer box, a first transmission belt is sleeved on the surface of the second connecting belt pulley, the other end of the first transmission belt is sleeved with the surface of the first connecting belt pulley, a transition belt pulley is arranged between the first connecting belt pulley and the second connecting belt pulley, two transition belt pulleys are rotatably connected to the surface of the outer box, and the surface of the first transmission belt is matched with the surface of the transition belt pulley; a second one-way bearing is coaxially and fixedly connected to the left side of the first connecting belt wheel, a driven gear is fixedly connected to the surface of the second one-way bearing, a driving rack is meshed to the surface of the driven gear, the driving rack is connected to the surface of the right end of the outer box in a sliding mode, a through hole is formed in the surface, corresponding to the driving rack, of the operating plate, and the lower end of the driving rack extends to the lower side of the operating plate through the through hole; a pillar is fixedly connected between the bottom plate and the operating plate, an installation arm is fixedly connected to the surface of the pillar, a control rod is hinged to the right end of the installation arm, and the lower end of the active rack is in sliding connection with the rear side of the surface of the control rod; the right side of the driving rack is provided with a spring shaft, the upper end of the spring shaft is fixedly connected with the bottom of the operating plate, a reset spring is sleeved on the surface of the spring shaft, and the driving rack is connected with the spring shaft in a sliding mode.

Preferably, clamping device includes sliding connection in the removal box of both sides about first show board with the second show board, the lower extreme inboard of removing the box is fixedly connected with link block respectively, first show board with the connection spout has been seted up respectively to the upper and lower both sides on the surface of second show board, connect the spout with connect spout sliding connection, the upper and lower both ends of first show board and second show board are located remove the inside of box, both ends surface difference fixedly connected with first magnetic path around removing the box, the surface of first magnetic path adsorbs respectively has the second magnetic path.

Preferably, clamping plates are respectively arranged on two sides inside the moving box, the clamping plates are respectively contacted with the surfaces of the first display plate and the second display plate, first hinge rods are respectively hinged to two ends of the lower side of the outer end surfaces of the two corresponding clamping plates, the other ends of the first hinge rods are respectively inclined upwards, the other ends of the first hinge rods are respectively hinged to the inner wall of the moving box, second hinge rods which are parallel to each other are respectively arranged on the upper sides of the first hinge rods, and two ends of each second hinge rod are respectively hinged to the surface of the clamping plate and the inner wall of the moving box; a second connecting rod is fixedly connected between two adjacent first hinged rods, a push rod is hinged to the surface of the second connecting rod, the other end of the push rod is inclined downwards, a supporting sliding block is hinged to the other end of the push rod, a supporting sliding groove in sliding connection with the supporting sliding block is formed in the surface of the moving box, the supporting sliding groove is in sliding connection with the supporting sliding block, a supporting spring is arranged inside the supporting sliding groove, and the upper end and the lower end of the supporting spring are respectively in contact with the supporting sliding block and the inner wall of the supporting sliding groove; two adjacent fixedly connected with head rod between the second articulated rod, the inside upper end sliding connection of removal box has the slurcam, fixedly connected with keyway board respectively is distinguished to slurcam lower extreme both sides, the keyway board is located respectively the upside of head rod, the head rod respectively with keyway board sliding connection, the upper end fixedly connected with shift knob of head rod, shift knob respectively with the upper end surface sliding connection of removal box, shift knob's upper end is located respectively the upside of removal box.

The invention has novel structure, ingenious conception and simple and convenient operation, and compared with the prior art, the invention has the following advantages:

when the device uses the chalks, the roller can be controlled to rotate to enable the chalks in the roller to fall out of the chalk box, then the roller resets when rotating reversely, the next chalks can enter the roller again to wait for next use, the chalk box can fully protect the chalks and move out when needed, a user can control the roller to rotate repeatedly for several times by using several chalks, and the use of the chalks can be greatly saved; the first display board and the second display board are used for writing and displaying data through chalk, the clamping device can clamp and fix paper data, the clamping device can move, a user can move the clamping device according to the size of the data, and the use is simple and convenient; the second display boards can be turned outwards when a large amount of data are written and displayed, the use range is enlarged, all the second display boards can be controlled to be turned outwards simultaneously by controlling the rotating connecting plate, the operation of a user is facilitated, a single second display board can be independently rotated for use, the use mode is diversified, a single mounting plate can be rotated according to the requirement of the user, the angles of the first display board and the second display board are further adjusted, and the user can conveniently watch the display; can realize the conversion of the first show board of multiunit and second show board through control rotor plate intermittent type rotation when writing with the centre gripping data, the person of facilitating the use operation.

Drawings

FIG. 1 is a first schematic view of the overall structure of a human resource management teaching apparatus according to the present invention.

FIG. 2 is a second schematic view of the overall structure of a human resource management teaching apparatus according to the present invention.

FIG. 3 is a first schematic view of the internal structure of a chalk box of the human resource management teaching device of the present invention.

FIG. 4 is a schematic view of a drum rotation structure of the human resource management teaching device of the present invention.

FIG. 5 is a first schematic view of a driving device structure of a human resource management teaching device according to the present invention.

FIG. 6 is a second schematic view of a driving device structure of a human resource management teaching device according to the present invention.

FIG. 7 is a second schematic view of the internal structure of a chalk box of the human resource management teaching device of the present invention.

Fig. 8 is a schematic view of a mounting structure of a shielding plate of the human resource management teaching device according to the present invention.

FIG. 9 is a first schematic view of a clamping device structure of the human resource management teaching device according to the present invention.

FIG. 10 is a second schematic view of a clamping device structure of the human resource management teaching device according to the present invention.

FIG. 11 is a first schematic view of a rotation driving structure of a rotation plate of the human resource management teaching device according to the present invention.

FIG. 12 is a second schematic view of a rotation driving structure of a rotation plate of the human resource management teaching device according to the present invention.

FIG. 13 is a third schematic view of a rotation driving structure of a rotation plate of the human resource management teaching device according to the present invention.

FIG. 14 is a schematic view of an active thumbwheel rotating structure of the human resource management teaching device of the present invention.

Fig. 15 is a schematic view of a meshing structure between a driving rack and a driven gear of the human resource management teaching device according to the present invention.

FIG. 16 is a schematic view of a first stop block mounting structure of the human resource management teaching device of the present invention.

FIG. 17 is a schematic view of an internal structure of a locking box of the human resource management teaching device of the present invention.

FIG. 18 is a schematic view of a second fixing bolt mounting structure of the human resource management teaching device of the present invention.

FIG. 19 is a schematic view of a connection structure between a rotating connection plate and a first linkage rod of the human resource management teaching device of the present invention.

FIG. 20 is a schematic view of an auxiliary ring installation structure of the human resource management teaching device of the present invention.

Fig. 21 is a schematic view of a connection structure between a second linking rod and a second display board of the human resource management teaching device of the present invention.

Reference numbers in the figures: 1-bottom plate, 2-operation plate, 3-outer box, 4-placing box, 5-chalk box, 6-roller, 7-spring coiling box, 8-outer shell, 9-shrinking knob, 10-coil spring, 11-inner shaft, 12-ratchet wheel, 13-ratchet block, 14-meshing spring, 15-first matching rack, 16-reversing gear, 17-second matching rack, 18-poking rod, 19-first one-way bearing, 20-swinging rod, 21-reciprocating rack, 22-reciprocating gear, 23-first driving pulley, 24-second driving pulley, 25-shielding plate, 26-moving box, 27-first magnetic block, 28-second magnetic block, 29-clamping plate, 30-pushing plate, 31-moving button, 32-first hinge rod, 33-second hinge rod, 34-first connection rod, 35-keyway plate, 36-second connection rod, 37-push rod, 38-support slider, 39-support spring, 40-rotation plate, 41-installation rod, 42-center rod, 43-grooved wheel, 44-driving thumb wheel, 45-transition pulley, 46-first transmission belt, 47-first connection pulley, 48-driven gear, 49-second one-way bearing, 50-driving rack, 51-spring shaft, 52-return spring, 53-control rod, 54-stop gear, 55-first stop block, 56-first stop spring, 57-auxiliary ring, 58-first fixing bolt, 59-rotation connection plate, 60-first connection rod, 61-moving plate, 62-stopping rack, 63-stopping box, 64-second stopping block, 65-limiting rod, 66-second stopping spring, 67-second linkage rod, 68-mounting slide block, 69-second fixing bolt, 70-mounting plate, 71-first display plate, 72-second display plate, 73-closing cover and 74-second connecting belt wheel.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 21, the present invention provides a human resource management teaching device, which comprises a bottom plate 1, wherein an operation plate 2 is fixedly connected to the upper side of the bottom plate 1, an outer box 3 is fixedly connected to the middle of the upper end of the operation plate 2, a placing box 4 capable of sliding outwards is slidably connected to the inside of the outer box 3, a chalk box 5 is fixedly connected to the left side of the upper end of the operation plate 2, an opening is formed in the lower end of the chalk box 5, a roller 6 is rotatably connected to the opening, a driving device capable of controlling the roller 6 to rotate forward and backward repeatedly is installed at the left end of the chalk box 5, a rotating plate 40 capable of rotating intermittently is rotatably connected to the upper end of the outer box 3, a central rod 42 is fixedly connected to the middle of the rotating plate 40, three mounting rods 41 are respectively arranged on the periphery of the central rod 42, the bottoms of the mounting rods 41 are respectively, the surfaces of the mounting rods 41 are respectively and rotatably connected with mounting plates 70, the outer ends of the mounting plates 70 are respectively and fixedly connected with first display plates 71, the joints of the first display plates 71 and the mounting plates 70 are respectively hinged with second display plates 72 which can be turned over, the upper end of the central rod 42 is rotatably connected with a rotating connecting plate 59, and when the rotating connecting plate 59 rotates, a structure that a plurality of second display plates 72 can be turned over synchronously is formed; a plurality of clamping devices are respectively connected to the upper and lower sides of the first display board 71 and the second display board 72 in a sliding manner.

When the device is used, the roller 6 can be controlled to rotate forwards and backwards repeatedly by operating the driving device, as shown in fig. 3 and 4, an inlet corresponding to the opening is formed in the surface of the roller 6, only one piece of chalk can be contained in the roller 6, when the device is used, all the chalks can be placed in the chalk box 5, one piece of chalk can enter the roller 6, when the chalk is used, the roller 6 can be controlled to rotate to enable the chalks in the roller 6 to fall out of the chalk box 5, then the roller 6 is reset when the roller 6 rotates backwards, the next piece of chalk can enter the roller 6 again to wait for next use, the chalk box 5 can fully protect the chalks, when needed, the chalks can be moved out, when a user needs to use a plurality of chalks, the roller 6 can be controlled to rotate repeatedly for a plurality of times, and the use of the chalks can; the placing box 4 can place the personal articles of the user; the first display board 71 and the second display board 72 are used for writing and displaying data through chalk, the clamping device can clamp and fix paper data, the clamping device can move, and a user can move the clamping device according to the size of the data, so that the use is simple and convenient; when a large amount of data is written and displayed, the second display boards 72 can be turned outwards, as shown in fig. 2, the use range is enlarged, all the second display boards 72 can be controlled to be turned outwards simultaneously by controlling the rotating connecting board 59, the operation of a user is facilitated, a single second display board 72 can be independently rotated for use, the use mode is diversified, a single mounting board 70 can be rotated according to the requirements of the user, the angles of the first display board 71 and the second display board 72 are further adjusted, and the user can conveniently watch the display; when writing and clamping data, the conversion of a plurality of groups of first display plates 71 and second display plates 72 can be realized by controlling the rotating plate 40 to rotate intermittently, so that the operation of a user is facilitated, the upper end surface of the rotating connecting plate 59 is fixedly connected with an auxiliary ring 57, and a plurality of strip-shaped bulges are arranged on the surface of the auxiliary ring 57 and used for facilitating the user to control the rotating connecting plate to rotate; the bottom of bottom plate 1 is fixedly connected with a plurality of service brake universal wheels for the auxiliary user removes this device.

The driving device comprises a swinging rod 20 capable of swinging back and forth, the middle part of the swinging rod 20 is rotatably connected with the surface of the chalk box 5, a reciprocating rack 21 is arranged at the lower side of the swinging rod 20, the reciprocating rack 21 is slidably connected with the surface of the chalk box 5, a first matching pin shaft is fixedly connected with the middle part of the left end of the reciprocating rack 21, the first matching pin shaft is slidably connected with the lower side of the surface of the swinging rod 20, and when the swinging rod 20 swings back and forth, a structure that the reciprocating rack 21 moves back and forth in a reciprocating manner can be formed; the downside meshing of reciprocal rack 21 has reciprocating gear 22, reciprocating gear 22 rotates to be connected the surface of chalk box 5, the coaxial rigid coupling of reciprocating gear 22's right-hand member has second driving pulley 24, the surface cover of second driving pulley 24 has the second drive belt, the coaxial rigid coupling in left side of cylinder 6 has first driving pulley 23, first driving pulley 23 is located the outside of chalk box 5, the other end of second drive belt with first driving pulley 23 cup joints.

As shown in fig. 5, a first matching chute is provided on the lower side of the surface of the swing plate, and a first matching pin is slidably connected to the first matching chute, so that when the swing lever 20 swings repeatedly around a connection point rotatably connected to the chalk box 5, the reciprocating rack 21 can be driven to reciprocate, and when the reciprocating rack 21 reciprocates, the reciprocating gear 22 can be driven to rotate repeatedly forward and backward by meshing with the reciprocating gear 22, and the roller 6 can be driven to rotate repeatedly forward and backward by the transmission of the first transmission belt pulley 23, the second transmission belt pulley 24 and the transmission belt, thereby achieving the effect of moving out the chalk.

A coil spring box 7 is fixedly connected to the upper side of the left end of the chalk box 5, an outer shell 8 is fixedly connected to the left end of the coil spring box 7, a coil spring 10 is arranged inside the coil spring box 7, an inner shaft 11 is fixedly connected to the middle of the coil spring 10, the outer end of the coil spring 10 is fixedly connected to the inner wall of the coil spring box 7, two ends of the inner shaft 11 are rotatably connected to the inner wall of the coil spring box 7 respectively, the left end of the inner shaft 11 penetrates through the coil spring box 7 and the outer shell 8, and a retraction knob 9 is fixedly connected to the left end of the inner shaft 11; a ratchet wheel 12 is fixedly connected to the surface of the inner shaft 11, the ratchet wheel 12 is located inside the outer shell 8, a ratchet block 13 is meshed with the upper side of the ratchet wheel 12, the ratchet block 13 is connected with the inner wall of the outer shell 8 in a sliding manner, a sliding rod is connected to the upper end of the ratchet block 13 in a sliding manner, the upper end of the sliding rod is fixedly connected with the inner wall of the outer shell 8, a meshing spring 14 is sleeved on the surface of the sliding rod, two ends of the meshing spring 14 are respectively in contact with the ratchet block 13 and the inner wall of the outer shell 8, a first one-way bearing 19 is fixedly connected to the surface of the inner shaft 11 on the left side of the ratchet wheel 12, a poking rod 18 is fixedly connected to the surface of the first one-way bearing 19, and the upper end;

the left end fixedly connected with of ratchet piece 13 has first cooperation rack 15, the left end meshing of first cooperation rack 15 has reversing gear 16, reversing gear 16 rotates to be connected 8 inner walls of shell, reversing gear 16's left side meshing has second cooperation rack 17, second cooperation rack 17 sliding connection be in the inner wall of shell 8, the upper end fixedly connected with connecting axle of second cooperation rack 17, run through the upper end of connecting axle shell 8 and the upper end fixedly connected with button of connecting axle.

The coil spring 10 is used for driving the inner shaft 11 to rotate through the self-contraction and expansion function and driving the poke rod 18 to rotate, a second matching chute is formed in the upper end of the swing rod 20, a second matching pin shaft is fixedly connected to the upper end of the poke rod 18, the second matching pin shaft is in sliding connection with the second matching chute, and the swing rod 20 can be driven to swing by taking a connecting point connected with the chalk box 5 in a grabbing and installing manner as a center through the sliding matching of the second matching pin shaft and the second matching chute when the poke rod 18 rotates; when the ratchet block 13 is matched with the ratchet wheel, the inner shaft 11 can only rotate in one direction, the inner shaft 11 can shrink the coil spring 10 when rotating in one direction, the inner shaft 11 can be driven to rotate in one direction by rotating the shrink knob 9, the first one-way bearing 19 can only rotate the first one-way bearing 19 when the inner shaft 11 can rotate in one direction and cannot drive the poke rod 18 to rotate, the poke rod 18 can be driven to rotate when the coil spring 10 can drive the inner shaft 11 to rotate, the coil spring 10 can be driven to shrink when the shrink knob 9 is rotated, when chalk needs to be removed, the second matching rack 17 can be driven to move downwards by pressing the button, the first matching rack 15 is driven to move upwards by the reversing gear 16, the ratchet block 13 can be driven to move upwards and compress the meshing spring 14, and the coil spring 10 can drive the inner shaft 11 to rotate after the limitation of the ratchet block 13 of the ratchet wheel is lost, the poke rod 18 is driven to rotate to drive the swinging rod 20 to swing, so that the chalks can be moved out, and a plurality of chalks can be moved out by continuously pressing the button; the slide bar is used for limiting the ratchet block 13, so that the ratchet block 13 can only move up and down.

Closing cap 73 has been placed to the upper end of chalk box 5, the inside bottom of chalk box 5 with the opening downside chalk box 5 inner wall all is the inclined plane structure, the lower extreme rear side of chalk box 5 is opened and is equipped with the storage storehouse, the opening part sliding connection of storing the storehouse has the shielding plate 25 that can remove to the left side.

The closing cap 73 is used for sealing the opening of chalk box 5, place in debris fall into chalk box 5, the egress opening has been seted up to the front end downside of chalk box 5, be used for the outflow of chalk, the inclined plane of the inside lower extreme of chalk box 5 and the inclined plane of the 5 inner walls of chalk box of opening downside all are the structure to the direction slope of egress opening, a direction slope for making things convenient for the chalk to flow in cylinder 6 and roll out chalk box 5, it is used for placing reserve chalk to store the storehouse, and seal and store the storehouse through using shielding plate 25, prevent that inside chalk from rolling out.

The upper ends of the mounting plates 70 are respectively connected with a moving plate 61 in a sliding manner, the inner ends of the moving plates 61 are respectively hinged with a first linkage rod 60, the other ends of the first linkage rods 60 are respectively hinged with the rotating connecting plates 59, and hinged joints of the first linkage rods 60 and the rotating connecting plates 59 are respectively coaxial with the mounting rods 41; the upper end of the moving plate 61 is fixedly connected with a stop rack 62, the upper end surface of the moving plate 61 is slidably connected with a stop box 63, the inside of the stop box 63 is slidably connected with a second stop block 64 meshed with the stop rack 62, the front end and the rear end of the second stop block 64 are slidably connected with a limit rod 65, the upper end and the lower end of the limit rod 65 are fixedly connected with the inner wall of the stop box 63, the surface of the limit rod 65 is sleeved with a second stop spring 66, and the two ends of the second stop spring 66 are respectively contacted with the surface of the second stop block 64 and the inner wall of the stop box 63; the upper end of the stopping box 63 is hinged with a second linkage rod 67, the other end of the second linkage rod 67 is hinged with a mounting sliding block 68, the upper end of the second display board 72 and the position of the central rod 42 in the opposite direction are fixedly connected with a convex block, the upper end of the convex block is provided with an inclined mounting sliding groove, the mounting sliding block 68 is connected with the mounting sliding groove in a sliding manner, the upper end of the mounting sliding block 68 is provided with a threaded hole up and down, and the mounting sliding block 68 is in threaded connection with a second fixing bolt 69 through the threaded hole.

The second stopping block 64 is engaged with the stopping rack 62 to temporarily fix the stopping box 63, and when all the second display boards 72 need to be simultaneously turned and unfolded outwards, the rotating connecting plate 59 can be controlled to rotate and the moving plate 61 is driven to move under the action of the first linkage rod 60, and then the second display boards 72 are driven to move through the second linkage rod 67, as shown in fig. 21, when the second linkage rod 67 is influenced by the moving plate 61 to move, the mounting sliding block 68 is preferably driven to slide along the mounting sliding groove to conveniently drive the second display boards 72 to turn outwards, and when the second display boards 72 are turned to be consistent with the first display boards 71, the mounting sliding block 68 can be fixed through rotating the second fixing bolt 69, so that all the second display boards 72 can be conveniently reset again when the rotating plate 40 is controlled to rotate reversely; the upper end of the rotating connecting plate 59 is in threaded connection with a first fixing bolt 58, the lower end of the first fixing bolt 58 is in contact with the upper end of the central rod 42, and a user can temporarily fix the rotating connecting rod by hand and then clamp the rotating connecting plate 59 by rotating the first fixing bolt 58, so that the rotating connecting plate 59 can be fixed; if a second display board 72 needs to be displayed independently, the rotating connecting plate 59 can be firstly fixed, and then the moving plate 61 cannot move, a user can directly turn the second display board 72 outwards, the stop box 63 is driven to move under the linkage of the second linkage rod 67, and the second stop block 64 is continuously meshed with the stop rack 62, when the second display board 72 rotates to a specified position, the force is stopped, and the second display board 72 can be temporarily fixed through the meshing of the second stop block 64 and the stop rack 62; the second stop spring 66 serves to urge the second stop block 64 into engagement with the stop rack 62.

The surface middle part of mounting panel 70 is close to the rectangular hole has been seted up to one side of installation pole 41, the surface of installation pole 41 is fixedly connected with stop gear 54 respectively, stop gear 54 is located respectively between the rectangular hole, stop gear 54's surface meshes respectively has first stopper 55, first stopper 55 respectively with rectangular hole surface sliding connection, first stopper 55's outer end is first stop spring 56 of fixedly connected with respectively, first stop spring 56's the other end respectively with rectangular hole inner wall fixed connection.

The first stop block 55 is meshed with the stop gear 54 to temporarily fix the mounting plate 70, since the hinged point of the first linkage rod 60 and the rotary connecting plate 59 is coaxial with the mounting rod 41, the connection between the first linkage rod 60 and the moving plate 61 is not affected when the mounting plate 70 is rotated, the mounting plate 70 is directly rotated when the angle of the mounting plate 70 needs to be adjusted, and the second stop block 64 is meshed with the stop gear 54 under the pushing of the second stop spring 66 after being rotated to a proper position, so that the mounting plate 70 is fixed.

A grooved wheel 43 is coaxially and fixedly connected to the middle of the lower end of the rotating plate 40, a driving thumb wheel 44 is engaged on the right side of the grooved wheel 43, the driving thumb wheel 44 is rotatably connected to the upper end surface of the outer box 3, a second connecting belt wheel 74 is coaxially and fixedly connected to the lower side of the driving thumb wheel 44, a first connecting belt wheel 47 is rotatably connected to the lower side of the right end surface of the outer box 3, a first transmission belt 46 is sleeved on the surface of the second connecting belt wheel 74, the other end of the first transmission belt 46 is sleeved on the surface of the first connecting belt wheel 47, a transition belt wheel 45 is arranged between the first connecting belt wheel 47 and the second connecting belt wheel 74, two transition belt wheels 45 are rotatably connected to the surface of the outer box 3, and the surface of the first transmission belt 46 is matched with the surface of the transition belt wheel 45; a second one-way bearing 49 is coaxially and fixedly connected to the left side of the first connecting belt wheel 47, a driven gear 48 is fixedly connected to the surface of the second one-way bearing 49, a driving rack 50 is meshed to the surface of the driven gear 48, the driving rack 50 is slidably connected to the surface of the right end of the outer box 3, a through hole is formed in the surface of the operating panel 2 corresponding to the driving rack 50, and the lower end of the driving rack 50 extends to the lower side of the operating panel 2 through the through hole; a pillar is fixedly connected between the bottom plate 1 and the operating plate 2, an installation arm is fixedly connected to the surface of the pillar, a control rod 53 is hinged to the right end of the installation arm, and the lower end of the active rack 50 is in sliding connection with the rear side of the surface of the control rod 53; the right side of the driving rack 50 is provided with a spring shaft 51, the upper end of the spring shaft 51 is fixedly connected with the bottom of the operating plate 2, a return spring 52 is sleeved on the surface of the spring shaft 51, and the driving rack 50 is connected with the spring shaft 51 in a sliding manner.

The control rod 53 is used for facilitating a user to control the rotating plate 40 to rotate and facilitating the realization of the transposition of each group of the first display plate 71 and the second display plate 72, the first display plate 71 and the second display plate 72 are three groups in total, as shown in fig. 13, when the driving thumb wheel 44 rotates for one circle, the grooved wheel 43 is driven to rotate for 120 degrees, and each time the control rod 53 is operated, one group of the first display plate 71 and the second display plate 72 can be moved to the front of the user, thereby facilitating the use of the user; the front end of the control rod 53 is fixedly connected with a handle for facilitating a user to press the control rod 53 downwards, the middle part of the control rod 53 is hinged with the mounting arm, when one end of the control rod 53 moves downwards, the other end can move upwards, the rear side surface of the control rod 53 is provided with a sliding groove, the lower end of the driving rack 50 is fixedly connected with a sliding rod which is in sliding connection with the sliding groove, when the rear end of the control rod 53 moves upwards, the driving rack 50 can be driven to move upwards and extrude the return spring 52 through the matching of the sliding rod and the sliding groove, the second one-way bearing 49 is used for realizing the effect of one-way rotation of the driven gear 48, when the driving rack 50 moves upwards, the first connecting belt wheel 47 can be driven to rotate through the meshing with the driven gear 48, when the driving rack 50 moves downwards, only the driven gear 48 can be driven to rotate, the first connecting belt wheel 47 cannot be driven to rotate, and further, when the control rod 53 is repeatedly pressed upwards and downwards, the first connecting belt wheel, the driving thumb wheel 44 is driven to rotate by the transmission of the first transmission belt 46 and the second connecting belt wheel 74, so that the driving thumb wheel 44 can be meshed with the grooved wheel 43 and drive the grooved wheel 43 to intermittently rotate, the rotating plate 40 is controlled to rotate, and the transition belt wheel 45 is used for enabling the first transmission belt 46 to stably transmit without being influenced by the edge angle of the outer box 3.

Clamping device includes sliding connection in the removal box 26 of both sides about first show board 71 with second show board 72, the lower extreme inboard of removing box 26 is fixedly connected with link block respectively, first show board 71 with the connection spout has been seted up respectively to the upper and lower both sides on the surface of second show board 72, connect the spout with connect spout sliding connection, the upper and lower both ends of first show board 71 and second show board 72 are located remove the inside of box 26, both ends surface difference fixedly connected with first magnetic path 27 around removing box 26, the surface of first magnetic path 27 adsorbs second magnetic path 28 respectively.

Clamping plates 29 are respectively arranged on two sides of the interior of the movable box 26, the clamping plates 29 are respectively in contact with the surfaces of the first display plate 71 and the second display plate 72, two corresponding lower ends of the outer end surfaces of the clamping plates 29 are respectively hinged with first hinge rods 32, the other ends of the first hinge rods 32 are respectively inclined upwards, the other ends of the first hinge rods 32 are respectively hinged with the inner wall of the movable box 26, second hinge rods 33 which are parallel to each other are respectively arranged on the upper sides of the first hinge rods 32, and two ends of each second hinge rod 33 are respectively hinged with the surfaces of the clamping plates 29 and the inner wall of the movable box 26; a second connecting rod 36 is fixedly connected between two adjacent first hinge rods 32, a push rod 37 is hinged to the surface of the second connecting rod 36, the other end of the push rod 37 inclines downwards, a supporting slide block 38 is hinged to the other end of the push rod 37, a supporting slide groove in sliding connection with the supporting slide block 38 is formed in the surface of the movable box 26, the supporting slide groove is in sliding connection with the supporting slide block 38, a supporting spring 39 is arranged inside the supporting slide groove, and the upper end and the lower end of the supporting spring 39 are respectively in contact with the supporting slide block 38 and the inner wall of the supporting slide groove; two adjacent fixedly connected with head rod 34 between second articulated pole 33, the inside upper end sliding connection of removal box 26 has push plate 30, fixedly connected with keyway board 35 respectively in push plate 30 lower extreme both sides, keyway board 35 is located respectively the upside of head rod 34, head rod 34 respectively with keyway board 35 sliding connection, the upper end fixedly connected with of push rod moves button 31, move button 31 respectively with the upper end surface sliding connection who removes box 26, the upper end of moving button 31 is located respectively the upside of removal box 26.

The first magnetic block 27 and the second magnetic block 28 are used for fixing the paper therapy through mutual attraction and are convenient to take; the movable box 26 can be controlled to move due to different sizes of paper materials, the two movable boxes 26 are matched to fix the paper materials, the clamping plate 29 is used for clamping the first display plate 71 and the second display plate 72, and further fixing the movable box 26 is realized, as shown in fig. 1 and 9, a gap is formed in the middle of the lower end of the movable box 26, the supporting slide block 38 is fixedly connected inside the gap, and the upper end and the lower end of the first display plate 71 and the lower end of the second display plate 72 are both positioned inside the movable box 26 when the supporting slide block 38 is slidably connected with the supporting slide groove, as shown in fig. 9 and 10, the first hinge rod 32 and the second hinge rod 33 form a parallelogram structure, a slide hole is formed in the middle of the supporting slide block 38, a first stabilizing shaft is slidably connected in the slide hole, the supporting spring 39 is sleeved on the surface of the first stabilizing shaft for preventing the supporting spring 39 from bending and deforming when compressed, when the portable electronic device is used, the supporting sliding block 38 is pushed to move upwards through the supporting spring 39, the second connecting rod 36 is pushed to move upwards through the push rod 37, the two clamping plates 29 are driven to move inwards simultaneously under the linkage of the first hinge rod 32 and the second hinge rod 33 to clamp the first display plate 71 or the second display plate 72, the mobile box 26 is fixed, the mobile button 31 can be pressed to control the push plate 30 to move downwards when the mobile box 26 is controlled to move, the first connecting rod 34 is driven to move downwards under the sliding fit of the key groove plate 35 and the first connecting rod 34, the two clamping plates 29 are driven to move outwards under the linkage of the first hinge rod 32 and the second hinge rod 33, and then the mobile box 26 can be moved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a manpower resources management teaching device, includes bottom plate (1), its characterized in that: the upper side of the bottom plate (1) is fixedly connected with an operation plate (2), the upper end middle part of the operation plate (2) is fixedly connected with an outer box (3), the inner part of the outer box (3) is connected with a placing box (4) capable of sliding outwards, the upper end left side of the operation plate (2) is fixedly connected with a chalk box (5), the inner lower end of the chalk box (5) is provided with an opening, the opening is rotatably connected with a roller (6), the left end of the chalk box (5) is provided with a driving device capable of controlling the roller (6) to repeatedly rotate forwards and backwards, the upper end of the outer box (3) is rotatably connected with a rotating plate (40) capable of rotating intermittently, the middle part of the rotating plate (40) is fixedly connected with a central rod (42), the periphery of the central rod (42) is respectively provided with three installation rods (41), the bottoms of the installation rods (41) are respectively fixedly connected with the rotating plate (, the surface of the mounting rod (41) is respectively and rotatably connected with a mounting plate (70), the outer end of the mounting plate (70) is respectively and fixedly connected with a first display plate (71), the joint of the first display plate (71) and the mounting plate (70) is respectively hinged with a second display plate (72) which can be turned over, the upper end of the central rod (42) is rotatably connected with a rotating connecting plate (59), and when the rotating connecting plate (59) rotates, a structure that a plurality of second display plates (72) are synchronously turned over can be formed; the upper side and the lower side of the first display plate (71) and the second display plate (72) are respectively connected with a plurality of clamping devices in a sliding manner.

2. The human resources management teaching device of claim 1, wherein: the driving device comprises a swinging rod (20) capable of swinging back and forth, the middle part of the swinging rod (20) is rotatably connected with the surface of the chalk box (5), a reciprocating rack (21) is arranged on the lower side of the swinging rod (20), the reciprocating rack (21) is slidably connected with the surface of the chalk box (5), a first matching pin shaft is fixedly connected with the middle part of the left end of the reciprocating rack (21), the first matching pin shaft is slidably connected with the lower side of the surface of the swinging rod (20), and when the swinging rod (20) swings back and forth, a structure that the reciprocating rack (21) moves back and forth in a reciprocating manner can be formed; the downside meshing of reciprocal rack (21) has reciprocating gear (22), reciprocating gear (22) rotate to be connected the surface of chalk box (5), the coaxial rigid coupling of right-hand member of reciprocating gear (22) has second driving pulley (24), the surface cover of second driving pulley (24) has the second drive belt, the coaxial rigid coupling in left side of cylinder (6) has first driving pulley (23), first driving pulley (23) are located the outside of chalk box (5), the other end of second drive belt with first driving pulley (23) cup joint.

3. The human resources management teaching device of claim 2, wherein: a coil spring box (7) is fixedly connected to the upper side of the left end of the chalk box (5), an outer shell (8) is fixedly connected to the left end of the coil spring box (7), a coil spring (10) is arranged inside the coil spring box (7), an inner shaft (11) is fixedly connected to the middle of the coil spring (10), the outer end of the coil spring (10) is fixedly connected with the inner wall of the coil spring box (7), two ends of the inner shaft (11) are respectively rotatably connected with the inner wall of the coil spring box (7), the left end of the inner shaft (11) penetrates through the coil spring box (7) and the outer shell (8), and a contraction knob (9) is fixedly connected to the left end of the inner shaft (11); a ratchet wheel (12) is fixedly connected to the surface of the inner shaft (11), the ratchet wheel (12) is positioned inside the outer shell (8), a ratchet block (13) is meshed with the upper side of the ratchet wheel (12), the ratchet block (13) is connected with the inner wall of the shell (8) in a sliding way, the upper end of the ratchet block (13) is connected with a sliding rod in a sliding way, the upper end of the sliding rod is fixedly connected with the inner wall of the shell (8), the surface of the sliding rod is sleeved with an engaging spring (14), two ends of the engaging spring (14) are respectively contacted with the ratchet block (13) and the inner wall of the shell (8), the surface of the inner shaft (11) at the left side of the ratchet wheel (12) is fixedly connected with a first one-way bearing (19), a poke rod (18) is fixedly connected to the surface of the first one-way bearing (19), and the upper end of the poke rod (18) is in sliding connection with the upper side of the surface of the swing rod;

the left end fixedly connected with of ratchet piece (13) first cooperation rack (15), the left end meshing of first cooperation rack (15) has reversing gear (16), reversing gear (16) rotate to be connected shell (8) inner wall, the left side meshing of reversing gear (16) has second cooperation rack (17), second cooperation rack (17) sliding connection be in the inner wall of shell (8), the upper end fixedly connected with connecting axle of second cooperation rack (17), run through the upper end of connecting axle shell (8) and the upper end fixedly connected with button of connecting axle.

4. The human resources management teaching device of claim 1, wherein: closing cap (73) have been placed to the upper end of chalk box (5), the inside bottom of chalk box (5) with the opening downside chalk box (5) inner wall all is the inclined plane structure, the lower extreme rear side of chalk box (5) is opened and is equipped with the storage storehouse, the opening part sliding connection of storing the storehouse has shielding plate (25) that can remove to the left side.

5. The human resources management teaching device of claim 1, wherein: the upper end of the mounting plate (70) is respectively connected with a moving plate (61) in a sliding manner, the inner end of the moving plate (61) is respectively hinged with a first linkage rod (60), the other end of the first linkage rod (60) is respectively hinged with the rotating connecting plate (59), and hinged joints of the first linkage rod (60) and the rotating connecting plate (59) are respectively coaxial with the mounting rod (41); the upper end of the moving plate (61) is fixedly connected with a stop rack (62) respectively, the upper end surface of the moving plate (61) is connected with a stop box (63) respectively in a sliding manner, a second stop block (64) meshed with the stop rack (62) is connected in the stop box (63) in a sliding manner, the front end and the rear end of the second stop block (64) are connected with limit rods (65) respectively in a sliding manner, the upper end and the lower end of each limit rod (65) are fixedly connected with the inner wall of the stop box (63) respectively, second stop springs (66) are sleeved on the surfaces of the limit rods (65) respectively, and the two ends of each second stop spring (66) are in contact with the surfaces of the second stop blocks (64) and the inner wall of the stop box (63) respectively; the upper end of locking box (63) articulates there is second trace (67), the other end of second trace (67) articulates respectively has installation slider (68), the upper end of second show board (72) with the opposite direction's of well core rod (42) position fixedly connected with protruding piece, the installation spout of slope is seted up respectively to the upper end of protruding piece, installation slider (68) respectively with installation spout sliding connection, threaded hole has been seted up from top to bottom in the upper end of installation slider (68), installation slider (68) pass through threaded hole threaded connection has second fixing bolt (69).

6. The human resources management teaching device of claim 1, wherein: the surperficial middle part of mounting panel (70) is close to the rectangular hole has been seted up to one side of installation pole (41), the surperficial fixedly connected with stop gear (54) respectively of installation pole (41), stop gear (54) are located respectively between the rectangular hole, the surface of stop gear (54) meshes respectively has first stopper (55), first stopper (55) respectively with rectangular hole surface sliding connection, the outer end of first stopper (55) is the first retaining spring (56) of fixedly connected with respectively, the other end of first retaining spring (56) respectively with rectangular hole inner wall fixed connection.

7. The human resources management teaching device of claim 1, wherein: a grooved wheel (43) is coaxially and fixedly connected with the middle part of the lower end of the rotating plate (40), the right side of the grooved wheel (43) is engaged with a driving thumb wheel (44), the driving thumb wheel (44) is rotationally connected with the upper end surface of the outer box (3), a second connecting belt wheel (74) is coaxially and fixedly connected with the lower side of the driving thumb wheel (44), a first connecting belt wheel (47) is rotationally connected with the lower side of the right end surface of the outer box (3), the surface of the second connecting belt wheel (74) is sleeved with a first transmission belt (46), the other end of the first transmission belt (46) is sleeved with the surface of the first connecting belt wheel (47), a transition belt wheel (45) is arranged between the first connecting belt wheel (47) and the second connecting belt wheel (74), two transition pulleys (45) are arranged and are rotationally connected with the surface of the outer box (3), the first drive belt (46) surface mating with the transition pulley (45) surface; a second one-way bearing (49) is coaxially and fixedly connected to the left side of the first connecting belt wheel (47), a driven gear (48) is fixedly connected to the surface of the second one-way bearing (49), a driving rack (50) is meshed to the surface of the driven gear (48), the driving rack (50) is slidably connected to the surface of the right end of the outer box (3), a through hole is formed in the surface of the operating board (2) corresponding to the driving rack (50), and the lower end of the driving rack (50) extends to the lower side of the operating board (2) through the through hole; a supporting column is fixedly connected between the bottom plate (1) and the operating plate (2), an installation arm is fixedly connected to the surface of the supporting column, a control rod (53) is hinged to the right end of the installation arm, and the lower end of the active rack (50) is in sliding connection with the rear side of the surface of the control rod (53); the right side of the driving rack (50) is provided with a spring shaft (51), the upper end of the spring shaft (51) is fixedly connected with the bottom of the operating plate (2), a return spring (52) is sleeved on the surface of the spring shaft (51), and the driving rack (50) is connected with the spring shaft (51) in a sliding mode.

8. The human resources management teaching device of claim 1, wherein: clamping device includes sliding connection first show board (71) with removal box (26) of both sides about second show board (72), the lower extreme inboard of removing box (26) is fixedly connected with link block respectively, first show board (71) with the connection spout has been seted up respectively to the upper and lower both sides on the surface of second show board (72), connect the spout with connect spout sliding connection, the upper and lower both ends of first show board (71) and second show board (72) are located the inside of removing box (26), both ends surface difference fixedly connected with first magnetic path (27) around removing box (26), the surface of first magnetic path (27) adsorbs respectively has second magnetic path (28).

9. The human resources management teaching device of claim 8, wherein: clamping plates (29) are respectively arranged on two sides of the interior of the movable box (26), the clamping plates (29) are respectively in contact with the surfaces of the first display plate (71) and the second display plate (72), two ends of the lower side of the outer end surfaces of the two corresponding clamping plates (29) are respectively hinged with first hinge rods (32), the other ends of the first hinge rods (32) are respectively inclined upwards, the other ends of the first hinge rods (32) are respectively hinged with the inner wall of the movable box (26), second hinge rods (33) which are parallel to each other are respectively arranged on the upper side of the first hinge rods (32), and two ends of each second hinge rod (33) are respectively hinged with the surface of the clamping plate (29) and the inner wall of the movable box (26); a second connecting rod (36) is fixedly connected between two adjacent first hinged rods (32), a push rod (37) is hinged to the surface of the second connecting rod (36), the other end of the push rod (37) inclines downwards, a supporting sliding block (38) is hinged to the other end of the push rod (37), a supporting sliding groove in sliding connection with the supporting sliding block (38) is formed in the surface of the movable box (26), the supporting sliding groove is in sliding connection with the supporting sliding block (38), a supporting spring (39) is arranged inside the supporting sliding groove, and the upper end and the lower end of the supporting spring (39) are respectively in contact with the supporting sliding block (38) and the inner wall of the supporting sliding groove; two adjacent fixedly connected with head rod (34) between second articulated rod (33), the inside upper end sliding connection that removes box (26) has slurcam (30), slurcam (30) lower extreme both sides are fixedly connected with keyway board (35) respectively, keyway board (35) are located respectively the upside of head rod (34), head rod (34) respectively with keyway board (35) sliding connection, the upper end fixedly connected with of slurcam removes button (31), remove button (31) respectively with the upper end surface sliding connection who removes box (26), the upper end of removing button (31) is located respectively the upside of removing box (26).