CN112503930B

CN112503930B - Semi-submersible energy-saving environment-friendly melting furnace

Info

Publication number: CN112503930B
Application number: CN202011351075.6A
Authority: CN
Inventors: 张沛彦
Original assignee: Shandong Hongchang Ferroalloy Co ltd
Current assignee: Shandong Hongchang Ferroalloy Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2022-06-21
Anticipated expiration: 2040-11-26
Also published as: CN112503930A

Abstract

The invention relates to the technical field of melting furnaces, in particular to a semi-submersible energy-saving environment-friendly melting furnace, which comprises a melting mechanism, a placing mechanism, a fixing mechanism, a containing mechanism and a driving mechanism, wherein the placing mechanism is arranged on the melting mechanism; the containing mechanism for containing the liquid for melting the metal is arranged in the melting mechanism, and after the containing mechanism is arranged in the melting mechanism, the fixing mechanism positioned on the side surface of the melting mechanism is rotated, so that the bottom of the fixing mechanism is meshed with the two ends of the containing mechanism, the containing mechanism is installed, the containing mechanism is convenient to disassemble and assemble, and the slag in the containing mechanism is convenient to clean; a placing mechanism is arranged at the edge of the bottom of the melting mechanism, and a material receiving container is placed on the surface of the placing mechanism when the materials are poured, so that the molten water in the receiving mechanism is received; the operation is simple; the driving mechanism is installed to the one end of placement mechanism, can do benefit to and connect the material according to the altitude mixture control placement mechanism's of melting mechanism height, avoids the material to splash, the security is high.

Description

Semi-submersible energy-saving environment-friendly melting furnace

Technical Field

The invention relates to the technical field of melting furnaces, in particular to a semi-submersible energy-saving environment-friendly melting furnace.

Background

A melting furnace aims to solve the problems caused by the detection of a tablet or loose powder sample in X fluorescence analysis, and the problems that the conventional wet chemistry cannot keep up with the production progress in the steel industry, the mine industry, the cement industry, the noble metal industry and the like are used for detecting a large amount of samples, and when X fluorescence detection is carried out, the detection accuracy is hindered by the problems of mineral effect, matrix effect, granularity effect and the like in the detection of X fluorescence due to the complexity of the samples. The melting method basically solves the problems, has simple processing process, and has very important significance for establishing a standard curve of X fluorescence, and the melting furnace is divided into a gas type melting furnace and an electric melting furnace.

The melting barrel of the melting furnace for melting metal at present is fixedly connected with the inner wall of a furnace body, when slag exists in the melting barrel, the melting barrel is difficult to take out from the interior of a box body, the slag in the melting furnace is difficult to clean, and the melting barrel is convenient to mount and dismount; and the furnace body needs to be overturned when the material is placed in the existing melting furnace, because the height of each furnace body is different, the inclined angle is different, the hopper can not be lifted when the material is received, the molten water in the melting barrel is easy to splash and splash, the waste is caused, and the safety is low.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a semi-submersible energy-saving environment-friendly melting furnace.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an energy-concerving and environment-protective melting furnace of semi-submerged formula, includes melting mechanism, placement mechanism, fixed establishment, dress and receives mechanism and actuating mechanism for the realization supports overall structure, heats the material the internally mounted of melting mechanism has and is used for melting to metal material and receives the dress mechanism, the side-mounting of melting mechanism has fixed establishment, fixed establishment with it meshes between the mechanism to receive, the side border department of melting mechanism installs and is used for placing receiving material container placement mechanism, placement mechanism's one end is installed and is used for promoting receiving material container actuating mechanism.

Specifically, melting mechanism includes support, furnace body, pivot and motor, it install in to receive the mechanism the inside of furnace body, two relative welding of lateral wall of furnace body has the pivot, two the pivot all rotate connect in the top of support, just the lateral wall of support is installed the motor, the one end and one of them of motor the end connection of pivot.

Specifically, the mechanism is received to the dress includes staving, mounting groove, standing groove, mounting panel and spacing tooth, the surface of furnace body has been seted up the standing groove is the hollow circular cylinder column structure the staving place in the inside of standing groove for the dress is received and is melted the relative welding of lateral wall of staving has and is the cuboid structure the mounting panel, the surface of staving seted up relatively with the mounting panel corresponds the mounting groove, two the mounting panel runs through two respectively the inside of mounting groove, and two the top of mounting panel has all been welded spacing tooth.

Specifically, fixed establishment includes roof, carousel, fixed plate, clamp plate, connecting plate, handle, latch and traveller, the welding of side center department of furnace body has the roof, the surperficial threaded connection of roof has the carousel, the bottom of carousel is rotated and is connected with the connecting plate, the skin weld of connecting plate has two the traveller, the relative welding in side of furnace body has the fixed plate, two the traveller respectively sliding connection in two the inside of fixed plate, the length of connecting plate is greater than the width of furnace body, the both ends of connecting plate rotate be connected with the lateral wall of furnace body is parallel the clamp plate, two the equal equidistance welding in bottom of clamp plate has the latch, the latch with mesh between the spacing tooth, two the back of the body lateral wall of clamp plate has all welded the handle.

Specifically, the placing mechanism comprises a supporting plate, a placing plate, a non-slip mat, a side plate, a support and a connecting rod, wherein the side surface of the support is welded with the supporting plate, the top of the supporting plate is welded with the support in a rectangular array mode, the support is welded with the connecting rod in a T-shaped structure, the connecting rod is connected with the side wall of the connecting rod in a sliding mode, the side wall of the connecting rod is connected with the side plate in a sliding mode, the side wall of the side plate is welded with one end of the driving mechanism, the top end of the driving mechanism is welded with the side wall of the supporting plate, the side wall of the supporting plate is parallel to the side wall of the placing plate, and the surface of the placing plate is provided with the non-slip mat.

Specifically, actuating mechanism includes actuating lever, first gear, second gear, lead screw, link and attachment strap, the perpendicular welding in surface of backup pad has the attachment strap, the lateral wall of attachment strap rotates to be connected with the actuating lever, the one end welding of actuating lever has first gear, the perpendicular rotation in surperficial center department of backup pad is connected with the lead screw, the lateral wall welding of lead screw have with mesh between the first gear the second gear, the welding in bottom center department of placing the board has the cross-section to be "U" shape structure the link, the lead screw with threaded connection between the link, two the curb plate relatively weld in the lateral wall of link.

The invention has the beneficial effects that:

(1) according to the semi-submersible energy-saving environment-friendly melting furnace, the containing mechanism for containing the liquid for melting the metal is arranged in the melting mechanism, and the fixing mechanism positioned on the side surface of the melting mechanism is rotated after the containing mechanism is arranged in the melting mechanism, so that the bottom of the fixing mechanism is meshed with two ends of the containing mechanism, the containing mechanism is installed, the containing mechanism is convenient to disassemble and assemble, and the slag in the containing mechanism is convenient to clean; namely: the metal is placed into the barrel body when the metal is melted, the metal in the barrel body is melted after the furnace body is heated, the barrel body is placed into the placing groove in the furnace body when the barrel body is installed, the two mounting plates are further inserted into the installing groove, the limiting teeth at the tops of the two mounting plates are clamped with the clamping teeth at the bottom of the pressing plate, and therefore the barrel body is installed and fixed, and the barrel body is convenient and quick to detach and simple to operate during overhauling and slag removal; after placing the inside of two mounting grooves with two mounting panels, rotate the top of mounting panel with two clamp plates at connecting plate both ends, further correspond the latch of two clamp plate bottoms and the spacing tooth at mounting panel top, advance the carousel on the rotation roof of one portion, realized so that the carousel extrudees the connecting plate to the bottom direction of support, and then realized the latch of clamp plate bottom and the spacing tooth block at mounting panel top, and then realized the fixed to the staving, and the operation is thus simple, conveniently dismantle the staving, sliding connection between traveller and the fixed plate when the connecting plate removes, the stability of connecting plate has been increased, avoid the connecting plate to rock when the furnace body pivoted.

(2) According to the semi-submersible energy-saving environment-friendly melting furnace, the placing mechanism is arranged at the edge of the bottom of the melting mechanism, and the material receiving container is placed on the surface of the placing mechanism during material pouring, so that the molten water in the receiving mechanism is received; the operation is simple; namely: when the metal needs to be melted, the metal is placed inside a barrel body inside a furnace body, a heating device of the furnace body is opened to heat the barrel body, the metal inside the barrel body is melted into liquid after the barrel body absorbs heat, a further support supports the furnace body, a motor is started after heating is completed, the motor is driven to rotate, the furnace body is turned over after a rotating shaft rotates, and then the metal molten water inside the barrel body is poured; the container that will connect the material when falling the material places the slipmat of placing the board surface on, and support and connecting rod have realized supporting spacingly placing the board, have realized after the motor switch on power that the furnace body upset pours the inside molten water of staving toward the slipmat surperficial container that connects the material, realize connecing the material.

(3) According to the semi-submersible energy-saving environment-friendly melting furnace, the driving mechanism is mounted at one end of the placing mechanism, the height of the placing mechanism can be adjusted according to the height of the melting mechanism, material receiving is facilitated, splashing of materials is avoided, and safety is high; namely: can clockwise, anticlockwise pass through the rotation actuating lever when connecing the material, the actuating lever has been realized after being rotated that first gear drives the second gear rotation of lead screw lateral wall, the lead screw rotates thereupon simultaneously, it is further because sliding connection between curb plate and the connecting rod of link lateral wall, and spacing by the connecting rod, realized placing the board and go up and down when the lead screw rotates, and then realized going up and down to placing the board according to the furnace body of co-altitude, avoided melting water to splash in the unloading, do benefit to safe processing.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of the overall structure of a preferred embodiment of a semi-submersible energy-saving and environment-friendly melting furnace provided by the present invention;

FIG. 2 is an enlarged view of the part A shown in FIG. 1;

FIG. 3 is a schematic view of the connection structure of the melting mechanism, the rotating rod mechanism and the pressing plate shown in FIG. 1;

FIG. 4 is an enlarged view of the structure of the portion B shown in FIG. 3;

FIG. 5 is a schematic view of the connection structure between the furnace body and the fixing mechanism shown in FIG. 1;

fig. 6 is a schematic view of a connection structure of the placing mechanism and the driving mechanism shown in fig. 1.

In the figure: 1. the melting mechanism 11, the support frame 12, the furnace body 13, the rotating shaft 14, the motor 2, the placing mechanism 21, the support plate 22, the placing plate 23, the non-slip mat 24, the side plate 25, the support frame 26, the connecting rod 3, the fixing mechanism 31, the top plate 32, the rotating disc 33, the fixing plate 34, the pressing plate 35, the connecting plate 36, the handle 37, the latch 38, the sliding column 4, the containing mechanism 41, the barrel 42, the mounting groove 43, the placing groove 44, the mounting plate 45, the limiting tooth 5, the driving mechanism 51, the driving rod 52, the first gear 53, the second gear 54, the screw rod 55, the connecting frame 56 and the butt plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the semi-submersible energy-saving environment-friendly melting furnace of the present invention includes a melting mechanism 1, a placing mechanism 2, a fixing mechanism 3, a holding mechanism 4 and a driving mechanism 5, the inside of the melting mechanism 1 for supporting an integral structure and heating materials is provided with the holding mechanism 4 for melting and holding metal materials, the side surface of the melting mechanism 1 is provided with the fixing mechanism 3, the fixing mechanism 3 is engaged with the holding mechanism 4, the edge of the side surface of the melting mechanism 1 is provided with the placing mechanism 2 for placing a receiving container, and one end of the placing mechanism 2 is provided with the driving mechanism 5 for lifting the receiving container.

Specifically, the melting mechanism 1 includes a support 11, a furnace body 12, a rotating shaft 13 and a motor 14, the accommodating mechanism 4 is installed inside the furnace body 12, the rotating shaft 13 is welded on two side walls of the furnace body 12 relatively, the two rotating shafts 13 are both rotatably connected to the top of the support 11, the motor 14 is installed on the side wall of the support 11, one end of the motor 14 is connected with one end of the rotating shaft 13, when metal needs to be melted, the metal is placed inside the barrel 41 inside the furnace body 12, a heating device of the furnace body 12 is opened to heat the barrel 41, the metal inside the barrel 41 is melted into liquid after the barrel 41 absorbs heat, further the support 11 supports the furnace body 12, and the motor 14 is started after the heating is completed, the motor 14 drives the rotating shaft 13 to rotate, and the furnace body 12 is turned over after the rotating shaft 13 rotates, so that the metal molten water in the barrel body 41 is poured.

Specifically, the containing mechanism 4 includes a barrel body 41, a mounting groove 42, a mounting groove 43, a mounting plate 44 and a limit tooth 45, the mounting groove 43 is formed on the surface of the furnace body 12, the barrel body 41 having a hollow cylindrical structure is placed inside the mounting groove 43, the mounting plate 44 having a rectangular parallelepiped structure is welded to the side wall of the barrel body 41 for containing the molten water, the mounting groove 42 corresponding to the mounting plate 44 is formed on the surface of the barrel body 41, the two mounting plates 44 respectively penetrate through the inside of the two mounting grooves 42, the limit tooth 45 is welded to the top of each of the two mounting plates 44, when the metal is melted, the metal is placed inside the barrel body 41, the furnace body 12 is heated to melt the metal inside of the barrel body 41, when the barrel body 41 is installed, the barrel body 41 is placed inside the mounting groove 43 inside the furnace body 12, further will two the mounting panel 41 inserts the mounting groove 42 inside can, two the mounting panel 44 top spacing tooth 45 with the clamp plate 34 bottom the latch 37 block, and then realized right the staving 41 is installed fixedly, convenient quick dismantlement, easy operation when overhauing, scarfing cinder.

Specifically, the fixing mechanism 3 includes a top plate 31, a rotary table 32, a fixing plate 33, a pressing plate 34, a connecting plate 35, a handle 36, a latch 37 and a sliding column 38, the center of the side surface of the furnace body 12 is welded with the top plate 31, the surface of the top plate 31 is connected with the rotary table 32 through threads, the bottom of the rotary table 32 is connected with the connecting plate 35 through rotation, the surface of the connecting plate 35 is welded with two sliding columns 38, the side surface of the furnace body 12 is welded with the fixing plate 33 relatively, the two sliding columns 38 are respectively connected with the two fixing plates 33 in a sliding manner, the length of the connecting plate 35 is greater than the width of the furnace body 12, two ends of the connecting plate 35 are connected with the pressing plate 34 parallel to the side wall of the furnace body 12 through rotation, the latch 37 is welded at equal intervals at the bottoms of the two pressing plates 34, and the latch 37 is engaged with the limit teeth 45, the handles 36 are welded on the opposite side walls of the two pressing plates 34, after the two mounting plates 44 are placed in the two mounting grooves 42, the two pressing plates 34 at the two ends of the connecting plate 35 are rotated to the top of the mounting plates 44, the latch 37 at the bottom of the two pressing plates 34 is further corresponding to the limit tooth 45 at the top of the mounting plates 44, and the rotating disc 32 on the top plate 31 is rotated, so that the rotating disc 32 extrudes the connecting plate 35 towards the bottom direction of the bracket 11, the latch 37 at the bottom of the pressing plate 34 is clamped with the limit tooth 45 at the top of the mounting plates 44, the barrel body 41 is fixed, the operation is simple, the barrel body 41 is convenient to disassemble, and the sliding column 38 is in sliding connection with the fixing plate 33 when the connecting plate 35 moves, the stability of the connecting plate 35 is increased, and the connecting plate is prevented from shaking when the furnace body 12 rotates.

Specifically, the placing mechanism 2 includes a supporting plate 21, a placing plate 22, non-slip mats 23, side plates 24, brackets 25 and connecting rods 26, the supporting plate 21 is welded to the side surface of the bracket 11, four brackets 25 are welded to the top of the supporting plate 21 in a rectangular array, the connecting rods 26 with T-shaped cross sections are slidably connected to the insides of the four brackets 25, the side walls of the two opposite connecting rods 26 are slidably connected to the side plates 24, the opposite side walls of the two side plates 24 are welded to one end of the driving mechanism 5, the placing plate 22 parallel to the supporting plate 21 is welded to the top end of the driving mechanism 5, the non-slip mats 23 are disposed on the surface of the placing plate 22, a container for receiving materials is placed on the non-slip mats 23 on the surface of the placing plate 22 during material pouring, and the supporting and limiting of the placing plate 22 are realized by the brackets 25 and the connecting rods 26, after the motor 14 is powered on, the furnace body 12 is turned over, and the molten water in the barrel 41 is poured into the material receiving container on the surface of the non-slip mat 23, so that material receiving is realized.

Specifically, the driving mechanism 5 includes a driving rod 51, a first gear 52, a second gear 53, a screw rod 54, a connecting frame 55 and an engaging plate 56, the engaging plate 56 is perpendicularly welded on the surface of the supporting plate 21, the side wall of the engaging plate 56 is rotatably connected with the driving rod 51, the first gear 52 is welded on one end of the driving rod 51, the screw rod 54 is perpendicularly rotatably connected on the center of the surface of the supporting plate 21, the second gear 53 engaged with the first gear 52 is welded on the side wall of the screw rod 54, the connecting frame 55 having a "u" -shaped "shaped cross section is welded on the center of the bottom of the placing plate 22, the screw rod 54 is in threaded connection with the connecting frame 55, the two side plates 24 are relatively welded on the side wall of the connecting frame 55, and the driving rod 51 can be rotated clockwise and counterclockwise during material receiving, after the driving rod 51 is rotated, the first gear 52 drives the second gear 53 on the side wall of the screw rod 54 to rotate, meanwhile, the screw rod 54 rotates along with the rotation, and further, the side plate 24 on the side wall of the connecting frame 55 is connected with the connecting rod 56 in a sliding manner and limited by the connecting rod 26, so that the placing plate 22 is lifted when the screw rod 54 rotates, the furnace body 12 is lifted up and down according to different heights, molten water is prevented from splashing during blanking, and safe processing is facilitated.

When the metal melting furnace is used, firstly, when the metal is required to be melted, the metal is placed inside the barrel body 41 inside the furnace body 12, the heating device of the furnace body 12 is opened to heat the barrel body 41, the metal inside the barrel body 41 is melted into liquid after the barrel body 41 absorbs heat, the support 11 further supports the furnace body 12, the motor 14 is started after the heating is finished, the motor 14 drives the rotating shaft 13 to rotate, the furnace body 12 is turned over after the rotating shaft 13 rotates, and then the metal molten water inside the barrel body 41 is poured; when the materials are poured, the material receiving container is placed on the anti-skid mat 23 on the surface of the placing plate 22, the support 25 and the connecting rod 26 realize the supporting and limiting of the placing plate 22, and after the motor 14 is powered on, the furnace body 12 is turned over to pour the molten water in the barrel body 41 into the material receiving container on the surface of the anti-skid mat 23, so that the materials are received; the driving rod 51 can be rotated clockwise and anticlockwise in material receiving, after the driving rod 51 is rotated, the first gear 52 drives the second gear 53 on the side wall of the screw rod 54 to rotate, meanwhile, the screw rod 54 rotates along with the rotation, and further, because the side plate 24 on the side wall of the connecting frame 55 is in sliding connection with the connecting rod 56 and is limited by the connecting rod 26, the placing plate 22 is lifted and lowered when the screw rod 54 rotates, the furnace bodies 12 with different heights are lifted and lowered, molten water is prevented from splashing in blanking, and safe processing is facilitated; then, when the metal is melted, the metal is placed into the barrel body 41, the metal in the barrel body 41 is melted after the furnace body 12 is heated, the barrel body 41 is placed into the placing groove 43 in the furnace body 12 when the barrel body 41 is installed, the two mounting plates 41 are further inserted into the mounting grooves 42, the limiting teeth 45 at the tops of the two mounting plates 44 are clamped with the clamping teeth 37 at the bottom of the pressing plate 34, the barrel body 41 is further installed and fixed, the disassembly is convenient and rapid when the maintenance and the slag removal are carried out, and the operation is simple; finally, after the two mounting plates 44 are placed inside the two mounting grooves 42, the two pressing plates 34 at the two ends of the connecting plate 35 are rotated to the top of the mounting plate 44, the latch 37 at the bottom of the two pressing plates 34 corresponds to the limit tooth 45 at the top of the mounting plate 44, the rotating disc 32 on the rotating top plate 31 is further rotated, the rotating disc 32 extrudes the connecting plate 35 towards the bottom of the support 11, the latch 37 at the bottom of the pressing plate 34 is clamped with the limit tooth 45 at the top of the mounting plate 44, the barrel 41 is further fixed, the operation is simple, the barrel 41 is convenient to disassemble, the sliding column 38 is connected with the fixing plate 33 in a sliding mode when the connecting plate 35 moves, the stability of the connecting plate 35 is improved, and the connecting plate is prevented from shaking when the furnace body 12 rotates.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The semi-submersible energy-saving environment-friendly melting furnace is characterized by comprising a melting mechanism (1), a placing mechanism (2), a fixing mechanism (3), a containing mechanism (4) and a driving mechanism (5), wherein the melting mechanism (1) for supporting an integral structure and heating materials is internally provided with the containing mechanism (4) for melting and containing metal materials, the fixing mechanism (3) is arranged on the side surface of the melting mechanism (1), the fixing mechanism (3) is meshed with the containing mechanism (4), the placing mechanism (2) for placing a material receiving container is arranged on the edge of the side surface of the melting mechanism (1), and the driving mechanism (5) for lifting the material receiving container is arranged at one end of the placing mechanism (2);

the melting mechanism (1) comprises a support (11), a furnace body (12), rotating shafts (13) and motors (14), the accommodating mechanism (4) is installed inside the furnace body (12), the rotating shafts (13) are welded on two side walls of the furnace body (12) relatively, the two rotating shafts (13) are rotatably connected to the top of the support (11), the motors (14) are installed on the side walls of the support (11), and one end of each motor (14) is connected with the end of one rotating shaft (13);

the containing mechanism (4) comprises a barrel body (41), mounting grooves (42), a placing groove (43), mounting plates (44) and limiting teeth (45), wherein the placing groove (43) is formed in the surface of the furnace body (12), the barrel body (41) which is of a hollow cylindrical structure is placed inside the placing groove (43), the mounting plates (44) which are of a cuboid structure are welded on the side wall of the barrel body (41) for containing molten water oppositely, the mounting grooves (42) which correspond to the mounting plates (44) are formed in the surface of the barrel body (41) oppositely, the two mounting plates (44) penetrate through the inside of the two mounting grooves (42) respectively, and the limiting teeth (45) are welded on the tops of the two mounting plates (44);

the fixed mechanism (3) comprises a top plate (31), a rotary plate (32), a fixed plate (33), a pressing plate (34), a connecting plate (35), a handle (36), a latch (37) and sliding columns (38), the top plate (31) is welded at the center of the side face of the furnace body (12), the rotary plate (32) is in threaded connection with the surface of the top plate (31), the connecting plate (35) is rotatably connected with the bottom of the rotary plate (32), the two sliding columns (38) are welded on the surface of the connecting plate (35), the fixed plate (33) is welded on the side face of the furnace body (12) relatively, the two sliding columns (38) are respectively in sliding connection with the two fixed plates (33), the length of the connecting plate (35) is greater than the width of the furnace body (12), the pressing plate (34) parallel to the side wall of the furnace body (12) is rotatably connected with the two ends of the connecting plate (35), the clamping teeth (37) are welded at the bottoms of the two pressing plates (34) at equal intervals, the clamping teeth (37) are meshed with the limiting teeth (45), and the handles (36) are welded on the side walls, opposite to each other, of the two pressing plates (34);

the placing mechanism (2) comprises a supporting plate (21), a placing plate (22), an anti-skid pad (23), a side plate (24), a bracket (25) and a connecting rod (26), the side of the support (11) is welded with the support plate (21), the top of the support plate (21) is welded with four supports (25) in a rectangular array manner, the insides of the four supports (25) are all connected with the connecting rods (26) with T-shaped sections in a sliding manner, the side walls of two opposite connecting rods (26) are all connected with the side plates (24) in a sliding manner, the opposite side walls of the two side plates (24) are all welded at one end of the driving mechanism (5), the top end of the driving mechanism (5) is welded with the placing plate (22) parallel to the supporting plates (21), and the surface of the placing plate (22) is provided with the anti-skid pad (23);

the driving mechanism (5) comprises a driving rod (51), a first gear (52), a second gear (53), a screw rod (54), a connecting frame (55) and an access board (56), the butt strap (56) is vertically welded on the surface of the supporting plate (21), the side wall of the butt strap (56) is rotatably connected with the driving rod (51), one end of the driving rod (51) is welded with the first gear (52), the surface center of the supporting plate (21) is vertically and rotatably connected with the screw rod (54), the side wall of the screw rod (54) is welded with the second gear (53) which is meshed with the first gear (52), the connecting frame (55) with a U-shaped section is welded at the center of the bottom of the placing plate (22), the screw rod (54) is in threaded connection with the connecting frame (55), and the two side plates (24) are welded to the side walls of the connecting frame (55) oppositely.