CN112678049B - Special transportation equipment convenient to connect and take fixed goods - Google Patents

Abstract

The invention relates to the technical field of special transportation equipment, and discloses special transportation equipment convenient for receiving and taking fixed goods, which comprises a push plate, wherein the surface of the front side of the push plate is fixedly connected with a supporting plate, a front supporting mechanism is arranged outside the supporting plate, the front supporting mechanism comprises a rotating rod, the rotating rod is movably sleeved inside the supporting plate, two ends of the rotating rod are fixedly sleeved with long columns, a transmission mechanism and the front supporting mechanism are arranged, a user movable column is plugged into a movable groove, the longitudinal column can collide against a trapezoidal block while rotating, the trapezoidal block drives the long columns to rotate on the rotating rod and enables the abutting columns to be rotatably overlapped to the upper side of the front side of a goods box, and the upper side and the lower side of the front side of the goods box can be supported and fixed by matching with a bottom layer fixing mechanism, so that the goods box can be prevented from shifting when the cart stops moving, and the situation that the goods box can slide down can be avoided when the cart stops, and the user can conveniently perform parking operation at any time when the cart stops.

Description

Special transportation equipment convenient to connect and get fixed goods

Technical Field

The invention relates to the technical field of special transportation equipment, in particular to special transportation equipment convenient for receiving and taking fixed goods.

Background

The special transportation equipment is used for conveying articles to a proper position in a transmission or moving mode, wherein a trolley is a conveying vehicle which is pushed and pulled by people and is the ancestor of all vehicles, although the trolley material conveying technology is continuously developed, the trolley is still used as an indispensable conveying tool, at present, when a cargo box is conveyed by the trolley, the trolley is in an L shape, so that the cargo is shaken to be outwards fallen off when the trolley is conveyed, meanwhile, a user can stop the trolley midway for rest when the trolley is conveyed, and when the trolley is at rest, the position of the cargo on the trolley can be deviated, so that the inconvenience is brought to the user for conveying the cargo.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides special transportation equipment convenient for receiving and taking fixed goods, which has the advantages of avoiding the situation that a goods box slides off, facilitating the operation of stopping the cart at any time by a user during the operation of the cart and the like, and solves the problems that the user possibly stops the cart for rest midway during the consignment of the cart and the position of the goods on the cart is possibly deviated during the rest of the cart, so that the inconvenience is brought to the consignment of the user.

(II) technical scheme

In order to realize the situation that the cargo box can be prevented from slipping off, thereby facilitating the operation of parking at any time when a user operates the cart, the invention provides the following technical scheme: the utility model provides a transportation professional equipment convenient to connect and get fixed goods, including the push pedal, the last fixed surface of push pedal is connected with the upper prop, the inside fixedly connected with round roller of upper prop, the lower surface of push pedal rotates and is connected with the wheel, the fixed surface of push pedal front side is connected with the layer board, the layer board becomes the slope form setting at push pedal left side surface, the outside of layer board is provided with preceding supporting mechanism, preceding supporting mechanism is including the dwang, the dwang activity cup joints in the inside of layer board, and the both ends of dwang all fixedly cup joint the long post, the long post passes through the dwang and rotates the both sides of connecting outside the layer board, the elongated slot has all been seted up to the inside of every long post, the equal sliding connection in inside of every elongated slot has the square pole, be provided with the support post between two square poles, fixed connection is on the one side that two square poles are close to mutually respectively at the both ends of support post, the rear side of two long posts all is provided with drive mechanism.

Preferably, every the equal fixedly connected with trapezoidal piece in rear end of long post, isosceles trapezoid shape is set to the trapezoidal piece, and the dovetail groove has been seted up to the rear end of trapezoidal piece, and the shape of trapezoidal piece sets to the fork form.

Preferably, one side of each long column far away from each other is provided with a threaded rod, the inner end of each threaded rod penetrates through the outer part of each long column and extends into the corresponding long column, the outer end of each threaded rod is fixedly connected with a circular plate, and each circular plate drives the corresponding threaded rod to be connected to the outer part of each long column in a rotating mode.

Preferably, every drive mechanism all includes indulges the post, indulges the inboard of post and has seted up the side channel, and the inside of side channel is provided with the round bar, and the round bar rotates to cup joint in the inside of indulging the post, and the round bar is located the side channel, and the outside activity of round bar has cup jointed torsional spring two, and the one end fixed connection of torsional spring two is on the outer wall of push pedal, and torsional spring two keeps away from the one end fixed connection of push pedal on the inner wall of side channel, indulges the post and rotates through torsional spring two and round bar and connect outside the push pedal, and the front end of indulging the post is located the top of trapezoidal piece.

Preferably, indulge the outside fixedly connected with roof of post, indulge and seted up the activity groove in post and the roof, the inside and the surface of indulging the post inboard of activity groove are linked together, and the inside sliding connection of activity groove has the activity post, and the outer end fixedly connected with pressure spring two of activity post, and one end fixed connection that the activity post was kept away from to pressure spring two is in the activity inslot, and the activity post passes through two sliding connection of pressure spring in the activity inslot.

Preferably, the inboard of indulging the post is provided with prismatic, and prismatic inner runs through the outer wall of push pedal and the activity extends in the push pedal, and the chute has been seted up on the surface of prismatic rear side, and the chute is the slope form and sets up, prismatic inner fixedly connected with pressure spring one, and pressure spring one keeps away from prismatic one end fixed connection in O.

Preferably, the layer board upper surface is provided with bottom fixed establishment, bottom fixed establishment is including preceding notch, baffle and two dead slots down, both sides in the layer board are seted up respectively to two dead slots, the upper surface in the layer board is seted up to preceding notch, and preceding notch is located the front end of layer board, the fixed cover of inside of baffle has connect the pivot down, the both ends of pivot run through preceding intraoral both sides wall of groove respectively and extend in two dead slots, the baffle rotates through the pivot down and connects in the dead slot, the equal fixedly connected with short column in both ends of pivot, the equal fixedly connected with torsional spring in outside at the both ends of pivot, the one end fixed connection of torsional spring is in the lateral surface of short column, the other end fixed connection of torsional spring is on the inner wall of dead slot, the equal fixedly connected with stay cord of upper surface of every short column.

Preferably, bottom fixed establishment is still including two pulling mechanisms, and every pulling mechanism all includes the spout, and the upper surface at the layer board is seted up to the spout, and the shape of spout sets to native word form, and the inside sliding connection of spout has the slide, and the shape setting of slide is the same with the shape of spout, and the upper end fixedly connected with movable plate of slide, the inside of movable plate has seted up logical groove, and the movable plate passes through slide sliding connection on the layer board, and the stay cord is kept away from the one end of short column and is run through the inner wall of dead slot and extend and the front side fixed connection of slide.

Preferably, bottom fixed establishment is still including the spreader, the rear end of spreader runs through the front surface of push pedal and extends in the rear side of push pedal, the inside groove has been seted up to the inside of spreader, the notch has all been seted up to the both sides of inside groove upper surface, the notch is located the front side and the rear side of push pedal respectively, sliding connection has the triangle cardboard in the notch of front side, sliding connection has the compression leg in the notch of rear side, the lower extreme fixedly connected with connecting plate of compression leg and triangle cardboard, connecting plate swing joint is in the inside groove, the lower extreme fixedly connected with compression spring of connecting plate, compression spring keeps away from the one end fixed connection of connecting plate on the diapire in the inside groove.

(III) advantageous effects

Compared with the prior art, the invention provides the special transportation equipment convenient for receiving and taking fixed goods, which has the following beneficial effects:

1. this transportation professional equipment convenient to connect and get fixed goods, through setting up drive mechanism and preceding supporting mechanism, the user can be after the goods case dress is on the layer board, borrow and hold the round roller and rotate the push pedal to become the slope form with ground by the wheel as the axle center, the mobile post of user is filled in the movable groove simultaneously, and will indulge the post and regard the round bar as the axle center to rotate forward afterwards, can strike on trapezoidal piece when indulging the post pivoted, and drive the long post by trapezoidal piece and rotate on the dwang and make support the post and rotate the overlap joint to the top of goods case front side, and cooperate bottom fixed establishment can all support fixedly to the upper and lower both sides of goods case front side, can avoid the goods case skew when the shallow stops to remove like this, when the shallow stops to place simultaneously, also can avoid the goods case to produce the situation of landing, thereby the operation of stopping at any time of user when the shallow operation of being convenient for the user.

2. This transportation professional equipment convenient to connect and get fixed goods, place on the layer board through with the cargo tank, and promote the cargo tank to the rear side on the layer board, the cargo tank strikes to two pushing mechanism on, the cargo tank drives the movable plate and removes in the spout, it makes the pivot carry out ninety degrees rotations to drive the short column when the spout removes, and it can the right angle form to drive down the baffle at the notch internal rotation in the front by the pivot, and drive logical inslot by the movable plate simultaneously and remove to the triangle cardboard in, fix the movable plate by the triangle cardboard, the baffle right angle setting is spacing to the front side surface of cargo tank on the layer board under the deuterogamying, avoid the situation production of cargo tank landing.

3. This transportation professional equipment convenient to connect and get fixed goods, through setting up connecting plate and compression leg cooperation compression spring, the user is being fixed the back with the position of movable plate by the triangle cardboard, it is fixed to the movable plate to loosen at needs, and make the movable plate drive the goods case and carry out the landing when getting goods, borrow by pressing down the compression leg, the compression leg drives the connecting plate downwards and makes compression spring compress, and drive the triangle cardboard to shrink to the inside groove when the connecting plate downstream, with this make the triangle cardboard break away from logical inslot, the movable plate separates with the triangle cardboard this moment, and can drive the goods case forward on the layer board by the elasticity that resets of torsional spring, and the gravity of cooperation layer board itself hypotenuse, reach the effect of taking out the goods case that can relax.

4. This transportation professional equipment convenient to connect and get fixed goods, support post and two square poles through setting up the threaded rod and plectane cooperation, two square poles slide in two long posts, and the drive supports the post and removes forward between two long posts, after controlling to support the post position well, can drive two long posts to rotate outside the layer board to become perpendicular form with the goods case to supporting the post, and fix the upper portion of goods case by supporting the post, the user can be controlled the fixing to not co-altitude goods case by adjusting the position of supporting post and two long posts like this, the fixed effect of goods case on the layer board has been guaranteed.

5. This transportation professional equipment convenient to connect and get fixed goods, through setting up trapezoidal piece cooperation dovetail groove, when long post borrows the extrusion of indulging the post and rotates downwards, and can drive trapezoidal piece synchronous rotation downwards simultaneously, rotate two long posts this moment to become vertically with the cargo tank, the rear end and the ground contact of trapezoidal piece this moment, and cooperate the forked form that trapezoidal piece formed, use the lower extreme of trapezoidal piece and push pedal to support the cargo tank for the fulcrum point, the stability of cargo tank when placing has further been consolidated.

6. This transportation professional equipment convenient to connect and get fixed goods through setting up movable post and activity groove cooperation pressure spring two, the user will indulge the post when rotating downwards, indulge the post and can drive the downward synchronous rotation of movable post, the movable post can strike to the compression leg when rotating downwards on to drive the triangle cardboard by the compression leg and make the movable plate break away from the spreader, can reach the effect that makes movable plate and spreader separation fast like this.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is a side cross-sectional structural view of the cross-post of FIG. 1 in accordance with the present invention;

FIG. 4 is a side cross-sectional view of the pallet of FIG. 1 according to the present invention;

FIG. 5 is a schematic perspective view of the moving plate of FIG. 1 according to the present invention;

FIG. 6 is a schematic top cross-sectional view of the longitudinal column of FIG. 1 in accordance with the present invention;

FIG. 7 is a schematic perspective view of the prism of FIG. 1 according to the present invention.

In the figure: 1. pushing a plate; 11. a pallet; 12. putting the column on; 13. a round roller; 14. a wheel; 2. a bottom layer fixing mechanism; 21. a front notch; 22. a lower baffle plate; 23. a rotating shaft; 24. an empty groove; 25. a short column; 26. a torsion spring; 27. pulling a rope; 28. a through groove; 29. moving the plate; 31. a slide plate; 32. a chute; 33. a triangular clamping plate; 34. grooving; 35. a connecting plate; 36. an inner tank; 37. a compression spring; 38. a cross post; 39. pressing the column; 4. a front support mechanism; 41. a long column; 42. a long groove; 43. a square bar; 44. a support column; 45. a threaded rod; 46. a circular plate; 47. rotating the rod; 48. a trapezoidal block; 49. a trapezoidal groove; 5. a transmission mechanism; 51. a longitudinal column; 52. a movable post; 53. a top plate; 54. a second torsion spring; 55. a side groove; 56. a round bar; 57. a prism; 58. a chute; 59. a first pressure spring; 61. a movable groove; 62. and a second pressure spring.

Detailed Description

The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular element.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a transportation professional equipment convenient to connect and get fixed goods, including push pedal 1, the last fixed surface of push pedal 1 is connected with upper prop 12, the inside fixedly connected with round roller 13 of upper prop 12, the lower surface of push pedal 1 rotates and is connected with wheel 14, the fixed surface of push pedal 1 front side is connected with layer board 11, layer board 11 becomes the slope form setting at push pedal 1 left side surface, the outside of layer board 11 is provided with preceding supporting mechanism 4, preceding supporting mechanism 4 is including dwang 47, dwang 47 activity cup joints in the inside of layer board 11, and the both ends of dwang 47 all fixedly cup joint long post 41, long post 41 rotates through dwang 47 and connects in the outer both sides of layer board 11, long slot 42 has all been seted up to the inside of every long post 41, the equal sliding connection in inside of every long slot 42 has square bar 43, be provided with between two square bars 43 and support post 44, support post 44's both ends are fixed connection respectively on the one side that two square bars 43 are close to mutually, the rear side of two long posts 41 all is provided with drive mechanism 5.

The equal fixedly connected with trapezoidal piece 48 in rear end of every long post 41, trapezoidal piece 48 sets up to isosceles trapezoid shape, and trapezoidal groove 49 has been seted up to trapezoidal piece 48's rear end, and trapezoidal piece 48's shape sets up to the fork form.

One side of each long column 41, which is far away from each other, is provided with a threaded rod 45, the inner end of the threaded rod 45 penetrates through the outside of the long column 41 and extends into the long groove 42, the outer end of the threaded rod 45 is fixedly connected with a circular plate 46, and the circular plate 46 drives the threaded rod 45 to be rotatably connected outside the long column 41.

Every drive mechanism 5 all includes indulging post 51, indulge the inboard of post 51 and seted up the side channel 55, the inside of side channel 55 is provided with round bar 56, round bar 56 rotates to cup joint in the inside of indulging post 51, and round bar 56 is located the side channel 55, the outside activity of round bar 56 has cup jointed two torsion springs 54, the one end fixed connection of two torsion springs 54 is on the outer wall of push pedal 1, and two torsion springs 54 keep away from the one end fixed connection of push pedal 1 on the inner wall of side channel 55, indulge post 51 and rotate through two torsion springs 54 and round bar 56 and connect outside push pedal 1, the front end of indulging post 51 is located trapezoidal piece 48's top.

The outer side of the vertical column 51 is fixedly connected with a top plate 53, movable grooves 61 are formed in the vertical column 51 and the top plate 53, the inner portion of each movable groove 61 is communicated with the surface of the inner side of the vertical column 51, the movable column 52 is slidably connected to the inner portion of each movable groove 61, the outer end of each movable column 52 is fixedly connected with a second pressure spring 62, one end, far away from the movable column 52, of the second pressure spring 62 is fixedly connected into the corresponding movable groove 61, and the movable column 52 is slidably connected into the corresponding movable groove 61 through the second pressure spring 62.

Indulge post 51's inboard and be provided with prismatic 57, prismatic 57's the inner outer wall that runs through push pedal 1 and activity extend in push pedal 1, and the chute 58 has been seted up on the surface of prismatic 57 rear side, and the chute 58 is the slope form and sets up, prismatic 57's the inner fixedly connected with pressure spring 59, one end fixed connection that pressure spring 59 kept away from prismatic 57 in 1O.

The 11 upper surface of layer board is provided with bottom fixed establishment 2, bottom fixed establishment 2 is including preceding notch 21, lower baffle 22 and two dead slots 24, two both sides in layer board 11 are seted up respectively to two dead slots 24, preceding notch 21 is seted up in the upper surface of layer board 11, and preceding notch 21 is located the front end of layer board 11, the fixed cover in inside of lower baffle 22 has connect pivot 23, both ends of pivot 23 run through before both sides wall in notch 21 respectively and extend in two dead slots 24, lower baffle 22 rotates through pivot 23 and connects in dead slots 24, the equal fixedly connected with short column 25 in both ends of pivot 23, the outside at the both ends of pivot 23 all fixedly connected with torsional spring 26, the one end fixed connection of torsional spring 26 is in the lateral surface of short column 25, the other end fixed connection of torsional spring 26 is on the inner wall of dead slot 24, the equal fixedly connected with stay cord 27 of the upper surface of every short column 25.

The bottom layer fixing mechanism 2 further comprises two pulling mechanisms, each pulling mechanism comprises a sliding groove 32, each sliding groove 32 is formed in the upper surface of the supporting plate 11, the sliding groove 32 is shaped like a Chinese character 'tu', a sliding plate 31 is slidably connected to the inside of each sliding groove 32, the shape of each sliding plate 31 is the same as that of each sliding groove 32, a moving plate 29 is fixedly connected to the upper end of each sliding plate 31, a through groove 28 is formed in the moving plate 29, the moving plate 29 is slidably connected to the supporting plate 11 through each sliding plate 31, and one end, far away from the short column 25, of each pulling rope 27 penetrates through the inner wall of the corresponding hollow groove 24 and extends to be fixedly connected with the front side of each sliding plate 31.

Bottom fixed establishment 2 is still including spreader 38, the rear end of spreader 38 runs through the front surface of push pedal 1 and extends in push pedal 1's rear side, interior groove 36 has been seted up to spreader 38's inside, notch 34 has all been seted up to the both sides of interior groove 36 upper surface, notch 34 is located the front side and the rear side of push pedal 1 respectively, sliding connection has triangle cardboard 33 in the notch 34 of front side, sliding connection has compression leg 39 in the notch 34 of rear side, compression leg 39 and triangle cardboard 33's lower extreme fixedly connected with connecting plate 35, connecting plate 35 swing joint is in interior groove 36, the lower extreme fixedly connected with compression spring 37 of connecting plate 35, the one end fixed connection that compression spring 37 kept away from connecting plate 35 is on the diapire in interior groove 36.

When in use, the utility model is used,

first step, place the cargo tank on layer board 11, and promote the cargo tank to the rear side on layer board 11, the cargo tank strikes to two pushing mechanism on, the cargo tank drives movable plate 29 and removes in spout 32, it makes pivot 23 carry out ninety degrees rotations to drive short column 25 when spout 32 removes, and baffle 22 is rotated into meeting right angle form in notch 21 in the front by pivot 23 drive down, and it removes to triangular cardboard 33 in to drive logical groove 28 by movable plate 29 simultaneously, it fixes movable plate 29 by triangular cardboard 33, baffle 22 right angle setting is spacing to the front side surface of cargo tank on layer board 11 under the deuterogamying, avoid the condition production of cargo tank landing.

Secondly, by arranging the connecting plate 35 and the pressing column 39 to cooperate with the compression spring 37, after the position of the moving plate 29 is fixed by the triangular clamping plate 33, when the moving plate 29 needs to be loosened and fixed and the moving plate 29 drives the cargo box to slide down and pick up the cargo, by pressing the pressing column 39 downwards, the pressing column 39 drives the connecting plate 35 downwards and compresses the compression spring 37, and the connecting plate 35 moves downwards and simultaneously drives the triangular clamping plate 33 to contract into the inner groove 36, so that the triangular clamping plate 33 is separated from the through groove 28, at this moment, the moving plate 29 is separated from the triangular clamping plate 33, and the cargo box can be driven to move forwards on the supporting plate 11 by means of the restoring elasticity of the torsion spring 26, and the effect of easily taking out the cargo box is achieved by cooperating with the gravity of the inclined edge of the supporting plate 11.

Thirdly, by arranging the threaded rod 45 and the circular plate 46 to be matched with the two abutting columns 44 and the two square rods 43, the two square rods 43 slide in the two long columns 41 and drive the abutting columns 44 to move forwards between the two long columns 41, after the positions of the abutting columns 44 are controlled, the abutting columns 44 can drive the two long columns 41 to rotate outside the supporting plate 11 to be vertical to the cargo box, and the abutting columns 44 fix the upper part of the cargo box, so that a user can control the fixation of the cargo boxes with different heights by adjusting the positions of the abutting columns 44 and the two long columns 41, and the fixation effect of the cargo box on the supporting plate 11 is ensured.

Fourthly, by arranging the transmission mechanism 5 and the front support mechanism 4, after the goods box is arranged on the supporting plate 11, a user can hold the round roller 13 and rotate the push plate 1 to be inclined with the ground by taking the wheel 14 as an axis, meanwhile, the movable column 52 of the user is plugged into the movable groove 61, and then the longitudinal column 51 rotates forwards by taking the round rod 56 as an axis, the longitudinal column 51 collides with the trapezoidal block 48 while rotating, the trapezoidal block 48 drives the long column 41 to rotate on the rotating rod 47 and enables the abutting column 44 to rotate and overlap the upper side of the front side of the goods box, and the bottom layer fixing mechanism 2 is matched to support and fix the upper side and the lower side of the front side of the goods box, so that the goods box can be prevented from shifting when the cart stops moving, and the goods box can be prevented from sliding when the cart stops being placed, and the user can conveniently perform parking operation at any time during the cart operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a transportation professional equipment convenient to connect and get fixed goods, includes push pedal (1), the last fixed surface of push pedal (1) is connected with upper prop (12), the inside fixedly connected with round roller (13) of upper prop (12), the lower surface of push pedal (1) rotates and is connected with wheel (14), the fixed surface of push pedal (1) front side is connected with layer board (11), layer board (11) become slope form setting, its characterized in that at push pedal (1) left side surface: the supporting plate is characterized in that a front supporting mechanism (4) is arranged outside the supporting plate (11), the front supporting mechanism (4) comprises a rotating rod (47), the rotating rod (47) is movably sleeved inside the supporting plate (11), two ends of the rotating rod (47) are fixedly sleeved with long columns (41), the long columns (41) are rotatably connected to two sides outside the supporting plate (11) through the rotating rod (47), a long groove (42) is formed in each long column (41), a square rod (43) is slidably connected to the inside of each long groove (42), a support column (44) is arranged between the two square rods (43), two ends of the support column (44) are fixedly connected to one side, close to the two square rods (43), of the two square rods (43) respectively, and a transmission mechanism (5) is arranged on the rear sides of the two long columns (41);

the rear end of each long column (41) is fixedly connected with a trapezoidal block (48), the trapezoidal block (48) is arranged into an isosceles trapezoid shape, a trapezoidal groove (49) is formed in the rear end of the trapezoidal block (48), and the trapezoidal block (48) is arranged into a fork shape;

a threaded rod (45) is arranged on one side, far away from each long column (41), the inner end of the threaded rod (45) penetrates through the outer part of each long column (41) and extends into the long groove (42), a circular plate (46) is fixedly connected to the outer end of each threaded rod (45), and the circular plate (46) drives the threaded rod (45) to be rotationally connected to the outer part of each long column (41);

each transmission mechanism (5) comprises a longitudinal column (51), a side groove (55) is formed in the inner side of the longitudinal column (51), a round rod (56) is arranged inside the side groove (55), the round rod (56) is rotatably sleeved inside the longitudinal column (51), the round rod (56) is located inside the side groove (55), a second torsion spring (54) is movably sleeved outside the round rod (56), one end of the second torsion spring (54) is fixedly connected to the outer wall of the push plate (1), one end, far away from the push plate (1), of the second torsion spring (54) is fixedly connected to the inner wall of the side groove (55), the longitudinal column (51) is rotatably connected to the outside of the push plate (1) through the second torsion spring (54) and the round rod (56), and the front end of the longitudinal column (51) is located above the trapezoidal block (48);

the outer side of the longitudinal column (51) is fixedly connected with a top plate (53), movable grooves (61) are formed in the longitudinal column (51) and the top plate (53), the inner parts of the movable grooves (61) are communicated with the surface of the inner side of the longitudinal column (51), the movable columns (52) are connected to the inner parts of the movable grooves (61) in a sliding mode, the outer ends of the movable columns (52) are fixedly connected with second pressure springs (62), one ends, far away from the movable columns (52), of the second pressure springs (62) are fixedly connected into the movable grooves (61), and the movable columns (52) are connected into the movable grooves (61) in a sliding mode through the second pressure springs (62);

the inner side of the longitudinal column (51) is provided with a prism (57), the inner end of the prism (57) penetrates through the outer wall of the push plate (1) and movably extends into the push plate (1), a chute (58) is formed in the surface of the rear side of the prism (57), the chute (58) is formed in an inclined shape, the inner end of the prism (57) is fixedly connected with a pressure spring I (59), and one end, far away from the prism (57), of the pressure spring I (59) is fixedly connected into the push plate (1);

the upper surface of the supporting plate (11) is provided with a bottom layer fixing mechanism (2), the bottom layer fixing mechanism (2) comprises a front notch (21), a lower baffle plate (22) and two empty slots (24), the two empty slots (24) are respectively arranged on two sides in the supporting plate (11), the front notch (21) is arranged on the upper surface of the supporting plate (11), the front notch (21) is located at the front end of the supporting plate (11), a rotating shaft (23) is fixedly sleeved inside the lower baffle plate (22), two ends of the rotating shaft (23) respectively penetrate through two side walls in the front notch (21) and extend into the two empty slots (24), the lower baffle plate (22) is rotatably connected in the empty slots (24) through the rotating shaft (23), two ends of the rotating shaft (23) are fixedly connected with short columns (25), the outer parts of two ends of the rotating shaft (23) are respectively connected with torsion springs (26), one end of each torsion spring (26) is fixedly connected to the outer side face of each short column (25), the other end of each torsion spring (26) is fixedly connected with a stay rope (27);

the bottom layer fixing mechanism (2) further comprises two pulling mechanisms, each pulling mechanism comprises a sliding groove (32), each sliding groove (32) is formed in the upper surface of the supporting plate (11), the sliding grooves (32) are arranged in a shape like a Chinese character 'tu', sliding plates (31) are connected inside the sliding grooves (32) in a sliding mode, the sliding plates (31) are arranged in a shape the same as that of the sliding grooves (32), a moving plate (29) is fixedly connected to the upper ends of the sliding plates (31), through grooves (28) are formed inside the moving plate (29), the moving plate (29) is connected to the supporting plate (11) in a sliding mode through the sliding plates (31), and one end, far away from the short column (25), of each pulling rope (27) penetrates through the inner wall of the corresponding empty groove (24) and extends to be fixedly connected with the front sides of the sliding plates (31);

bottom fixed establishment (2) are still including spreader (38), the rear end of spreader (38) runs through the front surface of push pedal (1) and extends in the rear side of push pedal (1), interior groove (36) have been seted up to the inside of spreader (38), notch (34) have all been seted up to the both sides of interior groove (36) upper surface, notch (34) are located the front side and the rear side of push pedal (1) respectively, sliding connection has triangle cardboard (33) in notch (34) of front side, sliding connection has compression leg (39) in notch (34) of rear side, lower extreme fixedly connected with connecting plate (35) of compression leg (39) and triangle cardboard (33), connecting plate (35) swing joint is in interior groove (36), the lower extreme fixedly connected with compression spring (37) of connecting plate (35), the one end fixed connection that connecting plate (35) were kept away from in compression spring (37) is on the diapire in interior groove (36).

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