CN210180162U

CN210180162U - High-efficiency dirty coal gas fired steel-pushing type heating furnace for processing angle steel

Info

Publication number: CN210180162U
Application number: CN201920826760.6U
Authority: CN
Inventors: Jianming Li; 李建明; Zhiyu Chen; 陈之玉
Original assignee: Qingxian Jifeng Steel Co Ltd
Current assignee: Qingxian Jifeng Steel Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-03-24
Anticipated expiration: 2029-06-03

Abstract

The utility model relates to the technical field of steel processing accessories, in particular to a high-efficiency dirty gas fired steel-pushing type heating furnace for processing angle steel; the air content in the working cavity can be conveniently adjusted, and the influence of the air content factor on the heating combustion effect in the working cavity is prevented; the machine comprises a machine body, a first fan, a supporting plate, a movable motor, a placing frame and a machine case, wherein a working cavity is arranged in the machine body, a taking and placing opening is formed in the front side wall of the machine body, and a fixing groove is formed in the front end of the placing frame; the top of the machine body is provided with a ventilation opening, and the machine body further comprises a connecting plate, a connecting frame, a mounting frame, servo motors, a fixed plate, a top plate and four groups of springs, wherein the output ends of the four groups of servo motors are provided with connecting rollers, the connecting rollers are provided with first driving frames, the top ends of the fixed plate are provided with second driving frames, the bottom ends of the fixed plate are provided with fixed rods, the fixed rods are connected with the top end of the top plate, and the bottom ends of the four groups of springs are.

Description

High-efficiency dirty coal gas fired steel-pushing type heating furnace for processing angle steel

Technical Field

The utility model relates to a steel processing auxiliary device's technical field especially relates to an efficient angle steel processing is with burning dirty coal gas push away steel formula heating furnace of heat.

Background

As is well known, a hot dirty gas fired pusher furnace for processing angle steel is a device which heats a steel plate raw material for processing angle steel at a high temperature to appropriately change the shape and form of the steel plate raw material, so that the steel plate raw material can be conveniently rolled or otherwise processed at a later stage, and is widely used in the field of steel processing and production; the existing hot and dirty coal gas fired steel-pushing type heating furnace for processing the angle iron comprises a machine body, a fan, a supporting plate, a movable motor, a placing frame and a machine case, wherein a working chamber is arranged in the machine body, a taking and placing opening is formed in the front side wall of the machine body, a baffle is hinged to the side wall of the taking and placing opening, a connecting groove is formed in the bottom end of the working chamber, the movable motor is fixedly installed in the connecting groove, a transmission shaft is arranged at the output end of the movable motor and connected with the bottom end of the supporting plate, a purifying chamber is arranged in the machine case, an opening is formed in the front end of the machine case and communicated with the purifying chamber, a cover plate is arranged at the opening, a communicating pipe is communicated with the machine case and communicated with the working chamber, the fan and the placing frame are; when the existing hot dirty gas-fired steel-pushing type heating furnace for processing the angle iron is used, a user opens a baffle and places an angle iron raw material product used for processing in a working cavity, active carbon used for adsorption and purification is placed in a placing groove, fuel is ignited to heat the angle iron in the working cavity at high temperature, the active carbon is used for purifying waste gas generated in the working process, and after the working is finished, the baffle is opened and the high-temperature heated angle iron in the working cavity is taken out; however, the dirty gas of current angle steel processing is with burning heat pushes away steel formula heating furnace in use and discovers that the use limitation of device is higher, and it is inconvenient to adjust the air content in the working chamber, easily causes the influence to the heating combustion effect in the working chamber, leads to the work efficiency of device lower, causes the result of use of device relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can effectual reduction device's use limitation, the convenience is adjusted the air content in the work chamber, prevents that the air content factor from causing the influence to the heating combustion effect in the work chamber, can effectual improvement device's work efficiency to improve device's result of use's efficient angle iron processing is with burning hot dirty coal gas push away steel formula heating furnace.

The utility model relates to a high-efficiency hot and dirty gas-fired steel-pushing type heating furnace for processing angle iron, which comprises a machine body, a first fan, a supporting plate, a movable motor, a placing frame and a machine case, wherein a working chamber is arranged in the machine body, a taking and placing opening is arranged on the front side wall of the machine body, a baffle plate is hinged on the side wall of the taking and placing opening, the bottom end of the working cavity is provided with a connecting groove, the movable motor is fixedly arranged in the connecting groove, the output end of the movable motor is provided with a transmission shaft, the transmission shaft is connected with the bottom end of the supporting plate, a purifying chamber is arranged in the case, an opening is arranged at the front end of the case and communicated with the purifying chamber, a cover plate is arranged at the opening, a communicating pipe is communicated with the case and communicated with the working chamber, the first fan and the placing rack are arranged in the placing groove, a fixing groove is arranged at the front end of the placing rack, and a plurality of groups of through holes are arranged on the side wall of the placing rack; the top end of the machine body is provided with a vent, the machine body further comprises a connecting plate, a connecting frame, a mounting frame, a servo motor, a fixing plate, a top plate and four groups of springs, the left front side, the right front side, the left rear side and the right rear side of the top end of the machine body are respectively provided with four groups of connecting rods, the top ends of the four groups of connecting rods are all connected with the bottom end of the connecting plate, the connecting frame is fixedly arranged at the bottom end of the connecting plate, the bottom end of the connecting frame is provided with a connecting groove, the mounting frame is fixedly arranged at the top end of the connecting groove, the bottom end of the mounting frame is provided with a mounting groove, the servo motor is fixedly arranged on the side wall of the mounting frame, the output end of the four groups of servo motors is provided with a connecting roller, the connecting roller is provided with a first, and the dead lever is connected with the top of roof, and the top of four groups of springs is connected with the left front side, right front side, left rear side and the right rear side on spread groove top respectively, four groups of spring bottom all are connected with the fixed plate.

The utility model discloses an efficient angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace still includes hydraulic means, mounting panel and multiunit second fan, is provided with the shrink groove on the working chamber lateral wall, and hydraulic means fixed mounting is in the shrink groove, hydraulic means's bottom is provided with the driving plate, and mounting panel fixed mounting is in drive the plate bottom, multiunit second fan fixed mounting is in the mounting panel bottom.

The utility model discloses an efficient angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace still includes two sets of first bracing pieces and two sets of second bracing pieces, and left side and right side in the work chamber are provided with two sets of regulating plates respectively, and two sets of first bracing pieces articulate respectively to be installed on two sets of regulating plates, and two sets of second bracing pieces articulate respectively and install left side and right side on two sets of baffle tops, insert respectively to two sets of second bracing piece tops two sets of first bracing piece bottoms.

The utility model discloses an efficient angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace still includes two sets of sealed pads, two sets of sealed pads are fixed mounting respectively on lateral wall behind roof bottom and the baffle.

The utility model discloses an efficient angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace still includes the arm-tie, the preceding lateral wall of baffle is provided with the kerve, the left end and the right-hand member of arm-tie respectively with the left side wall and the right side of kerve are connected.

The utility model discloses an efficient angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace still includes controller and transparent plate, controller fixed mounting is on the lateral wall of organism and is connected with servo motor, first fan and second fan electricity.

The utility model discloses an efficient angle iron processing is with burning hot dirty coal gas push away steel formula heating furnace still includes thermometer and glass board, is provided with movable groove on the lateral wall of organism, thermometer fixed mounting in movable groove and the temperature sensing position of thermometer contacts with the lateral wall in movable groove, glass board fixed mounting in movable groove and the glass board is located the right side of thermometer.

The utility model discloses an efficient angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace still includes four group's landing legs and two sets of pull rods, and four group's landing legs are installed respectively in left front side, right front side, left rear side and the right rear side of organism bottom, four group's landing leg bottoms are provided with four group's bases respectively, and the left end and the right-hand member of organism are provided with two sets of supports respectively, two sets of pull rods are fixed respectively on two sets of supports.

Compared with the prior art, the beneficial effects of the utility model are that: servo motor can drive the connecting roller rotatory drive first drive frame simultaneously and remove, first drive frame removes and can drive the connecting band and remove and make its winding on the lateral wall of connecting roller, the connecting band can undetermined second drive frame drives the fixed plate simultaneously and removes in order to extrude the energy storage to four group's springs, open servo motor reversal once more and rotate in order to drive the connecting roller, the spring takes place elastic deformation and can drive the fixed plate and drive the roof simultaneously and remove, circulate by the vent with the air-conditioning, can effectual reducing mechanism's use limitation, conveniently adjust the air content in the work chamber, prevent that the air content factor from causing the influence to the heating combustion effect in the work chamber, can effectual improvement device's work efficiency, thereby improve device's result of use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure within the holder;

FIG. 3 is a schematic view of the structure of the first support bar and the second support bar;

FIG. 4 is a front view of the body;

FIG. 5 is a schematic view of the hydraulic device, the actuator plate and the second fan;

in the drawings, the reference numbers: 1. a body; 2. a first fan; 3. a support plate; 4. a movable motor; 5. Placing a rack; 6. a chassis; 7. a baffle plate; 8. a connecting plate; 9. a connecting frame; 10. a mounting frame; 11. a servo motor; 12. a top plate; 13. a spring; 14. a connecting rod; 15. a connecting roller; 16. A second driving frame; 17. fixing the rod; 18. a connecting belt; 19. a hydraulic device; 20. a second fan; 21. driving the plate; 22. a first support bar; 23. a second support bar; 24. a gasket; 25. pulling a plate; 26. a controller; 27. a transparent plate; 28. a thermometer; 29. a glass plate; 30. A support leg; 31. a pull rod; 32. a base.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 5, the utility model discloses a high efficiency dirty coal gas fired steel-pushing type heating furnace for angle iron processing, which comprises a machine body 1, a first fan 2, a support plate 3, a movable motor 4, a placing frame 5 and a machine box 6, wherein the machine body 1 is internally provided with a working chamber, the front side wall of the machine body 1 is provided with a taking and placing opening, the side wall of the taking and placing opening is hinged with a baffle 7, the bottom end of the working chamber is provided with a connecting groove, the movable motor 4 is fixedly arranged in the connecting groove, the output end of the movable motor 4 is provided with a transmission shaft, the transmission shaft is connected with the bottom end of the support plate 3, the machine box 6 is internally provided with a purifying chamber, the front end of the machine box 6 is provided with an opening, the opening is communicated with the purifying chamber, the cover plate is arranged at the opening, the machine box 6 is communicated with a, a fixing groove is formed in the front end of the placing frame 5, and a plurality of groups of through holes are formed in the side wall of the placing frame 5; the top end of the machine body 1 is provided with a vent, the machine body also comprises a connecting plate 8, a connecting frame 9, a mounting frame 10, a servo motor 11, a fixing plate, a top plate 12, four groups of springs 13 and a connecting belt 18, the left front side, the right front side, the left rear side and the right rear side of the top end of the machine body 1 are respectively provided with four groups of connecting rods 14, the top ends of the four groups of connecting rods 14 are all connected with the bottom end of the connecting plate 8, the connecting frame 9 is fixedly arranged at the bottom end of the connecting plate 8, the bottom end of the connecting frame 9 is provided with a connecting groove, the mounting frame 10 is fixedly arranged at the top end of the connecting groove, the bottom end of the mounting frame 10 is provided with a mounting groove, the servo motor 11 is fixedly arranged on the side wall of the mounting frame 10, the output end of the four groups of servo motors 11 is provided with a connecting, the bottom end of the fixed plate is provided with a fixed rod 17, the fixed rod 17 is connected with the top end of the top plate 12, the top ends of the four groups of springs 13 are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the top end of the connecting groove, and the bottom ends of the four groups of springs 13 are connected with the fixed plate; servo motor can drive the connecting roller rotatory drive first drive frame simultaneously and remove, first drive frame removes and can drive the connecting band and remove and make its winding on the lateral wall of connecting roller, the connecting band can undetermined second drive frame drives the fixed plate simultaneously and removes in order to extrude the energy storage to four group's springs, open servo motor reversal once more and rotate in order to drive the connecting roller, the spring takes place elastic deformation and can drive the fixed plate and drive the roof simultaneously and remove, circulate by the vent with the air-conditioning, can effectual reducing mechanism's use limitation, conveniently adjust the air content in the work chamber, prevent that the air content factor from causing the influence to the heating combustion effect in the work chamber, can effectual improvement device's work efficiency, thereby improve device's result of use.

The utility model discloses a high efficiency angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace, still include hydraulic means 19, mounting panel and multiunit second fan 20, be provided with the shrinkage pool on the working chamber lateral wall, hydraulic means 19 fixed mounting is in the shrinkage pool, the bottom of hydraulic means 19 is provided with driving plate 21, the mounting panel fixed mounting is in driving plate 21 bottom, multiunit second fan 20 fixed mounting is in the mounting panel bottom; the hydraulic device can drive the driving plate and drive the mounting plate and drive the second fan to move, the working output wind power of the second fan can improve the gas flowing speed of the nearby working environment, and the processed steel plate raw material can be cooled.

The utility model discloses a high efficiency angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace, still include two sets of first bracing pieces 22 and two sets of second bracing pieces 23, left side and right side in the working chamber are provided with two sets of regulating plates respectively, two sets of first bracing pieces 22 are articulated respectively on two sets of regulating plates, two sets of second bracing pieces 23 are articulated respectively on left side and right side of two sets of baffles 7 tops, two sets of first bracing pieces 22 bottom is inserted respectively to two sets of second bracing pieces 23 tops; the first supporting rod and the second supporting rod can support the baffle, so that the baffle can be prevented from sliding when a user opens the baffle, and the practicability of the device can be improved.

The utility model discloses a high-efficiency dirty gas-fired steel-pushing type heating furnace for angle steel processing, which also comprises two groups of sealing gaskets 24, wherein the two groups of sealing gaskets 24 are respectively and fixedly arranged at the bottom end of the top plate 12 and on the rear side wall of the baffle 7; the sealing gasket can improve the sealing degree of gas in the working cavity and can prevent the combustion work in the working cavity from being influenced.

The utility model discloses a high efficiency angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace, still include arm-tie 25, the preceding lateral wall of baffle 7 is provided with the kerve, the left end and the right-hand member of arm-tie 25 are connected with the left side wall and the right side of kerve respectively; the user pulls the pulling plate to drive the pulling plate to move, so that the user can open or close the baffle conveniently.

The utility model discloses a high efficiency angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace, still include controller 26 and transparent plate 27, controller 26 is fixed mounting on the lateral wall of organism 1 and is connected with servo motor 11, first fan 2 and second fan 20 electricity; the convenience of a user adjusts the work of the servo motor through the controller, and the transparent plate can protect the controller.

The utility model discloses a high efficiency angle steel processing is with burning hot dirty gas push away steel formula heating furnace, still include thermometer 28 and glass board 29, be provided with the movable groove on the lateral wall of organism 1, thermometer 28 fixed mounting is in the movable groove and the temperature sensing position of thermometer 28 contacts with the lateral wall of movable groove, glass board 29 fixed mounting is in the movable groove and glass board 29 is located the right side of thermometer 28; the thermometer can measure the temperature of work in the working cavity, and a user can conveniently adjust the working mode of the device.

The utility model discloses a high efficiency angle steel processing is with burning hot dirty coal gas push away steel formula heating furnace, still include four group's landing legs 30 and two sets of pull rods 31, four group's landing legs 30 are installed respectively in the left front side, right front side, left rear side and the right rear side of organism 1 bottom, four group's landing legs 30 bottoms are provided with four group's bases 32 respectively, the left end and the right-hand member of organism 1 are provided with two sets of supports respectively, two sets of pull rods 31 are fixed respectively on two sets of supports; the four groups of supporting legs and the four groups of bases can support the machine body, the stability of the device in the working process can be improved, and a user can use related hoisting equipment to move the pull rods so as to drive the two groups of supports to integrally move the device to a proper working position.

The utility model discloses a high efficiency angle iron processing is with burning hot dirty coal gas push away steel formula heating furnace, it is at work, the user can utilize relevant lifting device to remove the pull rod at first so as to drive two sets of supports thereby wholly move the device to suitable operating position, four groups of landing legs and four groups of bases can support the organism, can improve the stability of device in the course of the work, the user opens the baffle and places the angle iron raw materials product that processing used in the work intracavity, place the active carbon that absorption purification used in the standing groove, light the fuel and carry out high temperature heating to the angle iron in the work intracavity, utilize active carbon to purify the waste gas that produces in the course of the work, open the baffle and take out the angle iron of high temperature heating in the work intracavity after the work is finished, servo motor can drive the connecting roller rotation and drive first drive frame and move, first drive frame moves and can drive the connecting band and move and make it twine on the lateral wall of connecting roller, the connecting belt can undetermined the second driving frame to simultaneously drive the fixed plate to move so as to extrude and store energy for four groups of springs, the servo motor is opened again to reversely rotate so as to drive the connecting roller to rotate, the springs are elastically deformed to drive the fixed plate to simultaneously drive the top plate to move so as to adjust the air to circulate through the ventilation opening, the use limitation of the device can be effectively reduced, the air content in the working cavity can be conveniently adjusted, the influence of the air content factor on the heating and burning effect in the working cavity is prevented, the hydraulic device can drive the driving plate to simultaneously drive the mounting plate to simultaneously drive the second fan to move, the air flow speed of the working environment of the second fan can be improved by the working output wind power of the second fan, the processed steel plate raw material can be cooled, the first supporting rod and the second supporting rod can support the baffle plate, and the baffle, can improve device's practicality, sealed the pad can improve the gas seal degree in the work chamber, can prevent that the burning work in the work chamber from receiving the influence, the user stimulates the arm-tie and can drive the arm-tie and remove, the person of facilitating the use opens or closes the baffle, the person of facilitating the use adjusts servo motor's work through the controller, the transparent plate can protect the controller, the thermometer can measure the temperature of work intracavity work, the person of facilitating the use adjusts the working method of device.

The present invention relates to a high-efficiency hot and dirty gas pusher furnace for angle iron processing, and in particular, to a hot and dirty gas pusher furnace for angle iron processing, wherein the terms "vertical, horizontal, front, rear, inside, outside, and vertical and horizontal" are used only for the orientation of the term in the normal use state or are commonly understood by those skilled in the art, and should not be construed as limiting the term, and the terms "first", "second", and "()" are not used for the specific number and sequence, but are used only for name differentiation, and the terms "include", or any other variations thereof are intended to cover the nonexclusive inclusion, such that a process, method, article, or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes the process, method, article, or apparatus including such elements, A method, article, or apparatus that is inherent to the element.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A high-efficiency hot and dirty gas-fired steel-pushing type heating furnace for processing angle iron comprises a machine body (1), a first fan (2), a supporting plate (3), a movable motor (4), a placing frame (5) and a machine box (6), wherein a working cavity is arranged in the machine body (1), a taking and placing opening is formed in the front side wall of the machine body (1), a baffle (7) is hinged to the side wall of the taking and placing opening, a connecting groove is formed in the bottom end of the working cavity, the movable motor (4) is fixedly installed in the connecting groove, a transmission shaft is arranged at the output end of the movable motor (4) and is connected with the bottom end of the supporting plate (3), a purifying chamber is arranged in the machine box (6), an opening is formed in the front end of the machine box (6) and is communicated with the purifying chamber, a cover plate is arranged at the opening, a communicating pipe is arranged on the, the first fan (2) and the placing rack (5) are arranged in the placing groove, the front end of the placing rack (5) is provided with a fixing groove, and the side wall of the placing rack (5) is provided with a plurality of groups of through holes; the air conditioner is characterized in that a ventilation opening is formed in the top end of the machine body (1), the air conditioner further comprises a connecting plate (8), a connecting frame (9), a mounting frame (10), a servo motor (11), a fixing plate, a top plate (12), four groups of springs (13) and connecting belts (18), wherein four groups of connecting rods (14) are respectively arranged on the left front side, the right front side, the left rear side and the right rear side of the top end of the machine body (1), the top ends of the four groups of connecting rods (14) are respectively connected with the bottom end of the connecting plate (8), the connecting frame (9) is fixedly arranged at the bottom end of the connecting plate (8), a connecting groove is formed in the bottom end of the connecting frame (9), the mounting frame (10) is fixedly arranged at the top end of the connecting groove, the servo motor (11) is fixedly arranged on the side wall of the mounting frame, and be provided with first drive frame on connecting roller (15), be provided with second drive frame (16) on the top of fixed plate, the top and the bottom of connecting band (18) are fixed respectively on first drive frame and second drive frame (16), and the bottom of fixed plate is provided with dead lever (17), and dead lever (17) are connected with the top of roof (12), and the top of four group's springs (13) is connected with the left front side, right front side, left rear side and the right rear side on spread groove top respectively, four group's springs (13) bottom all are connected with the fixed plate.

2. The high efficiency dirty coal fired gas pusher furnace for angle iron processing as claimed in claim 1, further comprising a hydraulic device (19), a mounting plate and a plurality of sets of second fans (20), wherein the side wall of the working chamber is provided with a shrinking slot, the hydraulic device (19) is fixedly mounted in the shrinking slot, the bottom end of the hydraulic device (19) is provided with a driving plate (21), the mounting plate is fixedly mounted at the bottom end of the driving plate (21), and the plurality of sets of second fans (20) are fixedly mounted at the bottom end of the mounting plate.

3. The high efficiency hot and dirty gas pusher furnace for angle iron processing as set forth in claim 2, further comprising two sets of first support rods (22) and two sets of second support rods (23), wherein two sets of adjusting plates are respectively disposed on the left and right sides of the working chamber, the two sets of first support rods (22) are respectively and hingedly mounted on the two sets of adjusting plates, the two sets of second support rods (23) are respectively and hingedly mounted on the left and right sides of the top ends of the two sets of baffle plates (7), and the bottom ends of the two sets of first support rods (22) are respectively inserted into the top ends of the two sets of second support rods (23).

4. The high efficiency hot dirty gas pusher furnace for angle iron processing according to claim 3, further comprising two sets of gaskets (24), wherein the two sets of gaskets (24) are fixedly mounted on the bottom end of the top plate (12) and the rear side wall of the baffle plate (7), respectively.

5. The high efficiency hot dirty gas pusher furnace for angle iron processing according to claim 4, further comprising a pulling plate (25), wherein the front side wall of the baffle (7) is provided with a pulling groove, and the left end and the right end of the pulling plate (25) are connected to the left side wall and the right side wall of the pulling groove, respectively.

6. The high efficiency dirty gas powered furnace for angle iron working according to claim 5, further comprising a controller (26) and a transparent plate (27), wherein the controller (26) is fixedly installed on the sidewall of the machine body (1) and electrically connected to the servo motor (11), the first fan (2) and the second fan (20).

7. The high efficiency hot dirty gas pusher furnace for angle iron working according to claim 6, further comprising a thermometer (28) and a glass plate (29), wherein a movable groove is provided on the side wall of the body (1), the thermometer (28) is fixedly installed in the movable groove and the temperature sensing portion of the thermometer (28) is in contact with the side wall of the movable groove, the glass plate (29) is fixedly installed in the movable groove and the glass plate (29) is located on the right side of the thermometer (28).

8. The high efficiency hot and dirty gas powered furnace for angle iron working according to claim 7, further comprising four sets of legs (30) and two sets of rods (31), wherein the four sets of legs (30) are respectively mounted on the front left side, the front right side, the rear left side and the rear right side of the bottom end of the machine body (1), the four sets of legs (30) are respectively provided with four sets of bases (32) at the bottom end, the left end and the right end of the machine body (1) are respectively provided with two sets of brackets, and the two sets of rods (31) are respectively fixed on the two sets of brackets.