阅读说明：本技术 一种三用维修设备 (Three-purpose maintenance equipment ) 是由 史晓明 邵维嘉 陶磊 于 2021-06-30 设计创作，主要内容包括：本发明涉及维修设备技术领域,具体为一种三用维修设备。一种三用维修设备,包括第一固定方管、第一定位销、后端凳面和固定背板,所述第一固定方管上螺栓连接有第一角钢和万向轮,第一角钢上螺栓连接有前端凳面,所述第一固定方管和第二固定方管上螺栓连接有第一定位销和第六定位销。本发明的有益效果是：该三用维修设备,在现有的基础上进行改进,利用支撑杆向下运动的同时能够带动输送管与其内部的橡胶活塞进行相向运动,进而能够将其底部橡胶吸盘内的空气抽取,此时橡胶吸盘结合支撑底板能够将梯形态的维修设备稳定吸附固定在放置地面上,进而能够有效防止梯形态设备在工作过程中发生万向轮打滑现象导致工作人员受伤。(The invention relates to the technical field of maintenance equipment, in particular to three-purpose maintenance equipment. The utility model provides a three way maintenance of equipment, includes first fixed side's pipe, first locating pin, rear end bench face and fixed backplate, bolted connection has first angle steel and universal wheel on the first fixed side's pipe, and bolted connection has the front end bench face on the first angle steel, bolted connection has first locating pin and sixth locating pin on the first fixed side's pipe and the second fixed side's pipe. The invention has the beneficial effects that: this three way maintenance of equipment improves on current basis, can drive the conveyer pipe and carry out the relative motion rather than inside rubber piston when utilizing the bracing piece downstream, and then can be with the air extraction in its bottom rubber suction cup, and rubber suction cup combines the supporting baseplate to fix the maintenance of equipment of ladder form stably adsorbing and placing subaerially this moment, and then can prevent effectively that ladder form equipment from taking place the universal wheel phenomenon of skidding and leading to the staff injured in the course of the work.)

1. The utility model provides a three way maintenance of equipment, its characterized in that, includes first fixed square pipe (1), first locating pin (5), rear end bench face (12) and fixed backplate (13), bolted connection has first angle steel (2) and universal wheel (4) on first fixed square pipe (1), and bolted connection has front end bench face (3) on first angle steel (2), bolted connection has first locating pin (5) and sixth locating pin (32) on first fixed square pipe (1) and second fixed square pipe (8), and bolted connection has second locating pin (6) and third locating pin (7) on first fixed square pipe (1), and bolted connection has fourth locating pin (9), fifth locating pin (10) and second angle steel (11) on second fixed square pipe (8), and bolted connection has rear end bench face (12) and fixed backplate (13) on second angle steel (11).

2. The three-purpose maintenance equipment according to claim 1, wherein the first angle steel (2) and the second angle steel (11) are symmetrically distributed on two sides of the first fixed square pipe (1) and the second fixed square pipe (8), respectively, the distance between the second angle steels (11) on two sides is greater than the distance between the first angle steels (2) on two sides, the top end surface of the front stool surface (3) and the top end surface of the rear stool surface (12) are located on the same horizontal plane, and the integral structure of the rear stool surface (12) is the same as that of the front stool surface (3).

3. The three-purpose maintenance equipment according to claim 1, characterized in that a clamping rod (14) is connected to the second angle steel (11) in a limiting and sliding manner, a return spring (15) is sleeved on the clamping rod (14), the top end of the return spring (15) is welded and fixed to the top end of the clamping rod (14), the bottom end of the return spring (15) is welded and fixed to the second angle steel (11), and a clamping groove (16) is formed in the first angle steel (2).

4. The three-purpose maintenance equipment according to claim 1, wherein the fixed back plate (13) is slidably connected with a mounting plate (17) in a limited manner, the mounting plate (17) is connected with a main magnetic block (18) and a rubber rod (19) through screws, the bottom end of the rubber rod (19) is connected with the fixed back plate (13) through screws, the fixed back plate (13) is connected with an auxiliary magnetic block (20) and a gear tooth rod (21) through screws, a circular gear (22) is engaged and connected on the gear rack (21), the circular gear (22) is welded and fixed at the top end of a threaded rod (23), a supporting rod (24) is movably connected on the threaded rod (23), a supporting bottom plate (25) is welded and fixed at the bottom end of the supporting rod (24), the support rod (24) is connected to the mounting plate (17) in a limiting sliding mode, the mounting plate (17) is connected with a fixing frame (26) through screws, and the fixing frame (26) is connected with a threaded rod (23) in a rotating mode.

5. The three-purpose maintenance equipment according to claim 3, characterized in that the clamping rod (14) is connected to the middle part of the second angle steel (11), the cross section of the clamping rod (14) is T-shaped, the diameter of the clamping rod (14) is smaller than the diameter of the inner space of the return spring (15), the length of the clamping rod (14) is larger than the distance between the second angle steel (11) and the adjacent first angle steel (2), and the diameter of the clamping rod (14) is smaller than the diameter of the inner space of the clamping groove (16).

6. The three-purpose maintenance equipment according to claim 4, wherein the central axis of the mounting plate (17) and the central axis of the fixed back plate (13) are located on the same horizontal central line, the width of the mounting plate (17) is smaller than the width of the fixed back plate (13), the main magnetic block (18) and the auxiliary magnetic block (20) are respectively fixed at the middle part of the mounting plate (17) and the middle part of the fixed back plate (13), the main magnetic block (18) and the auxiliary magnetic block (20) are located on the same horizontal plane, rubber rods (19) are symmetrically distributed at the left side and the right side of the mounting plate (17), and the cross section of the mounting plate (17) is L-shaped.

7. The three-purpose maintenance equipment according to claim 4, characterized in that the circular gears (22) are equidistantly distributed on the gear rack (21), the circular gears (22) correspond to the support rods (24) one by one through the threaded rods (23), the threaded rods (23) are in threaded connection with the support rods (24), the threaded rods (23) are connected to the central part of the support rods (24), the diameter of the circular gears (22) is smaller than the width of the inner space of the connecting grooves (31), and the height of the top end surface inside the connecting grooves (31) is larger than that of the top end surface of the circular gears (22).

8. The three-purpose maintenance equipment according to claim 4, characterized in that the fixed frame (26) is fixed with a joint rod (27) by welding, the bottom end of the joint rod (27) is connected with a rubber piston (28) by screw, the rubber piston (28) is connected in a conveying pipe (29) in a limiting and sliding manner, the conveying pipe (29) is connected on the supporting bottom plate (25) by screw, the bottom end of the conveying pipe (29) is connected with a rubber suction cup (30) by bolt, and the fixed back plate (13) is provided with a connecting groove (31).

9. The three-purpose service apparatus according to claim 8, wherein the delivery pipes (29) are symmetrically distributed on the left and right sides of the supporting base plate (25), the supporting rod (24) is fixed on the central portion of the supporting base plate (25), the height of the bottom end surface of the supporting base plate (25) is smaller than that of the bottom end surface of the rubber suction cup (30), the outer end surface of the rubber piston (28) is attached to the inner wall of the delivery pipe (29), and the length of the delivery pipe (29) is equal to that of the connecting rod (27).

Technical Field

The invention relates to the technical field of maintenance equipment, in particular to three-purpose maintenance equipment.

Background

In the engineering maintenance in-process, the maintenance personal often need assist with the help of maintenance equipments such as some ladders or stools, still need transport the transportation work to a large amount of instruments and spare part with the help of the shallow occasionally simultaneously, and then can guarantee that the maintenance personal carries out stable convenient maintenance work to the engineering equipment of different positions, and some problems still exist when using for some maintenance equipments on the existing market:

the maintenance of existing market equipment is functional comparatively single, and when the maintenance personal dealt with multiple maintenance environment simultaneously, conventional maintenance equipment can not carry out the transform of using-way to multiple operational environment in the use, therefore the staff need carry and change and use multiple maintenance equipment to assist the maintenance, and intensity of labour is big, cost of maintenance is high to work efficiency is low, and the practicality is relatively poor.

Disclosure of Invention

The invention provides a three-purpose maintenance device aiming at the technical problems in the prior art, and solves the problem that the conventional maintenance device cannot change the use mode aiming at various working environments in the use process.

The technical scheme for solving the technical problems is as follows: the utility model provides a three way maintenance of equipment, includes first fixed side pipe, first locating pin, rear end bench face and fixed backplate, bolted connection has first angle steel and universal wheel on the first fixed side pipe, and bolted connection has the front end bench face on the first angle steel, bolted connection has first locating pin and sixth locating pin on the first fixed side pipe and the second fixed side pipe, and bolted connection has second locating pin and third locating pin on the first fixed side pipe, and bolted connection has fourth locating pin, fifth locating pin and second angle steel on the second fixed side pipe, and bolted connection has rear end bench face and fixed backplate on the second angle steel.

The invention has the beneficial effects that:

1) the three-purpose maintenance equipment has a better effect, the three-purpose maintenance equipment is improved on the existing basis, the sixth positioning pin is disassembled, the rear-end stool surface can stably rotate clockwise through the first positioning pin which is jointly connected with the tops of the first fixing square pipe and the second fixing square pipe, the rear-end stool surface can be combined to form a ladder shape when being overturned to the front-end stool surface, and the staff can be clamped into the clamping groove in the first angle steel by using the clamping rod and the reset spring on the second angle steel, so that the positioning and fixing work of the ladder shape can be conveniently and stably completed, and the stability and the safety of the working state of the subsequent ladder shape can be further ensured.

2) This three way maintenance of equipment effect is better, the device is after converting into the terraced form, the usable foot of staff promotes the mounting panel and slides on fixed backplate, it is fixed to combine main magnetic block and vice magnetic block to carry out stable absorption, in the motion process of mounting panel, the teeth of a cogwheel pole passes through circular gear and threaded rod and can drive the downward steady motion of supporting baseplate of bracing piece bottom, can stably lift this equipment, and then can guarantee this equipment at the stability of the terraced body state of placing, the stability in use of this equipment has been increased.

3) This three way maintenance of equipment effect is better, the device can drive the conveyer pipe and carry out the motion in opposite directions rather than inside rubber piston when the bracing piece downstream, and then can be with the air extraction in its bottom rubber suction cup, and form the negative pressure, rubber suction cup combines supporting baseplate can fix the maintenance of equipment of ladder form stable absorption placing subaerial this moment, and then can prevent effectively that ladder form equipment from taking place the universal wheel phenomenon of skidding and leading to the staff injured at the course of the work, the use variety and the security that have increased this equipment.

4) This three way maintenance of equipment effect is better, the device can be with first fixed side's pipe through extracting first locating pin and second locating pin, first angle steel and front end bench face are folding, the same reason, can be with the fixed side's pipe of second through extracting the fourth locating pin, second angle steel and rear end bench face are folding, can splice fixed and accomplish the board form with the back bench after afterwards after folding preceding bench, this maintenance of equipment is through using the board form, the transform that carries out the user mode that ladder form and bench form can guarantee follow-up to multiple maintenance environment can be convenient stable, and effectively reduced intensity of labour and cost of maintenance, and the work efficiency is effectively improved simultaneously.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, first angle steel and second angle steel respectively symmetric distribution are in the both sides of first fixed square pipe and the fixed square pipe of second, and the distance between the second angle steel of both sides is greater than the distance between the first angle steel of both sides, the top face of front end bench face is located same horizontal plane with the top face of rear end bench face, and the overall structure of rear end bench face is the same with the overall structure of front end bench face, spacing sliding connection has the kelly on the second angle steel, and the cover is equipped with reset spring on the kelly, and reset spring's top welded fastening is on the top of kelly, and reset spring's bottom welded fastening is on the second angle steel, the draw-in groove has been seted up on the first angle steel.

The beneficial effects of adopting above-mentioned further scheme are that, can guarantee reset spring work effect's on the kelly stability, effectively improve the safety in utilization and the stability of this equipment, effectively improved the use convenience of this equipment simultaneously.

Further, spacing sliding connection has the mounting panel on the fixed backplate, and screwed connection has main magnetism piece and rubber pole on the mounting panel, and the bottom screwed connection of rubber pole is on fixed backplate, and screwed connection has vice magnetism piece and teeth of a cogwheel pole on the fixed backplate, the meshing is connected with circular gear on the teeth of a cogwheel pole, and circular gear welded fastening is on the top of threaded rod, and swing joint has the bracing piece on the threaded rod, and the bottom welded fastening of bracing piece has a supporting baseplate, spacing sliding connection of bracing piece is on the mounting panel, and screwed connection has the mount on the mounting panel, and the swing joint has the threaded rod on the mount.

The beneficial effect who adopts above-mentioned further scheme is that, can guarantee the stability of mounting panel slip work on fixed backplate, and then can guarantee the stability of follow-up support work, increased the use convenience of this equipment.

Further, the kelly is connected in the middle part of second angle steel, and the transversal "T" font of personally submitting of kelly, and the diameter of kelly is less than reset spring's inner space diameter, and the length of kelly is greater than the distance between second angle steel to the adjacent first angle steel, and the diameter of kelly is less than the inner space diameter of draw-in groove.

The beneficial effect who adopts above-mentioned further scheme is that, can guarantee that the stable block of kelly is fixed in the draw-in groove, and then can guarantee the stability of the fixed work of block between second angle steel and the adjacent first angle steel, has increased the safety in utilization of this equipment.

Further, the central axis of mounting panel and the central axis of fixed backplate are located same horizontal central line, and the width of mounting panel is less than the width of fixed backplate, main magnetic block and vice magnetic block are fixed respectively at the middle part of mounting panel and the middle part of fixed backplate, and main magnetic block and vice magnetic block are located same horizontal plane, and the left and right sides symmetric distribution of mounting panel has the rubber pole, and the transversal "L" font of personally submitting of mounting panel, circular gear equidistance distributes on the pinion rod, and circular gear passes through threaded rod and bracing piece one-to-one, is threaded connection between threaded rod and the bracing piece, and the threaded rod is connected at the central point of bracing piece, and the diameter of circular gear is less than the inner space width of spread groove, and the height of the inside top face of spread groove is greater than the height of circular gear top face.

The beneficial effect who adopts above-mentioned further scheme is that, can conveniently control the threaded rod and rotate the stability of work on the mount, and then can drive the supporting baseplate of bracing piece bottom and carry out stable support work.

Further, welded fastening has the pole that links up on the mount, and the bottom screwed connection of pole that links up has rubber piston, and the spacing sliding connection of rubber piston is in the conveyer pipe, and conveyer pipe screwed connection is on bottom plate, and the bottom bolted connection of conveyer pipe has the rubber suction cup, the spread groove has been seted up on the solid fixed back plate, conveyer pipe symmetric distribution is in bottom plate's the left and right sides, and bottom plate's central part is fixed with the bracing piece, and the height that highly is less than rubber suction cup bottom face of bottom plate bottom face, the outer terminal surface of rubber piston laminates with the inner wall of conveyer pipe mutually, the length of conveyer pipe equals with the length of linking the pole.

The beneficial effect who adopts above-mentioned further scheme is, can effectively avoid linking up the pole to the harmful effects of conveyer pipe, and then can guarantee follow-up rubber piston operating condition's stability.

Drawings

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

FIG. 2 is a schematic perspective view of a second angle iron of the present invention;

FIG. 3 is a schematic top view of the latch of the present invention;

FIG. 4 is a schematic top view of a card slot of the present invention;

FIG. 5 is a schematic illustration of a cogged bar construction of the present invention;

FIG. 6 is a schematic view of the rubber piston structure of the present invention;

FIG. 7 is a schematic top view of the circular gear of the present invention;

FIG. 8 is a side view of the mounting plate of the present invention;

FIG. 9 is a top view of the support rod of the present invention;

FIG. 10 is a perspective view of the front stool surface of the present invention;

FIG. 11 is a schematic perspective view of a first fixed square tube according to the present invention;

FIG. 12 is a perspective view of the caster of the present invention;

FIG. 13 is a schematic perspective view of a second fixed square tube according to the present invention;

FIG. 14 is a perspective view of the mounting plate of the present invention;

fig. 15 is a schematic perspective view of the rear bench top of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a first fixed square tube; 2. a first angle steel; 3. a front stool surface; 4. a universal wheel; 5. a first positioning pin; 6. a second positioning pin; 7. a third positioning pin; 8. a second fixed square tube; 9. a fourth positioning pin; 10. a fifth positioning pin; 11. a second angle steel; 12. a rear end stool surface; 13. fixing the back plate; 14. a clamping rod; 15. a return spring; 16. a card slot; 17. mounting a plate; 18. a main magnetic block; 19. a rubber rod; 20. a secondary magnetic block; 21. a pinion rod; 22. a circular gear; 23. a threaded rod; 24. a support bar; 25. a support base plate; 26. a fixed mount; 27. a connecting rod; 28. a rubber piston; 29. a delivery pipe; 30. a rubber suction cup; 31. connecting grooves; 32. and a sixth positioning pin.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Conventional maintenance of equipment can not carry out the transform of using-way to multiple operational environment in the use in the existing market, therefore the staff need carry and change and use multiple maintenance of equipment to assist the maintenance, intensity of labour is big, cost of maintenance is high to work efficiency is low, and the practicality is relatively poor.

And conventional maintenance of equipment usually adopts the universal wheel that has brake mechanism to remove and place work, but maintenance of equipment carries out the during operation on comparatively smooth subaerial, and conventional maintenance of equipment can not stabilize effectual absorption to self and fix and place work, and then can not guarantee follow-up staff maintenance work's safety, has proposed a three way maintenance of equipment to this inventor and has solved above-mentioned problem.

The present invention provides the following preferred embodiments

As shown in figures 1-4, a three-purpose maintenance device comprises a first fixed square tube 1, a first positioning pin 5, a rear stool surface 12 and a fixed back plate 13, wherein the first fixed square tube 1 is bolted with a first angle steel 2 and a universal wheel 4, the first angle steel 2 is bolted with a front stool surface 3, the first fixed square tube 1 and the second fixed square tube 8 are bolted with a first positioning pin 5 and a sixth positioning pin 32, the first fixed square tube 1 is bolted with a second positioning pin 6 and a third positioning pin 7, the second fixed square tube 8 is bolted with a fourth positioning pin 9, a fifth positioning pin 10 and a second angle steel 11, the second angle steel 11 is bolted with a rear stool surface 12 and a fixed back plate 13, the first angle steel 2 and the second angle steel 11 are respectively and symmetrically distributed at two sides of the first fixed square tube 1 and the second fixed square tube 8, the distance between the second angle steels 11 at two sides is larger than the distance between the first angle steels 2 at two sides, the top face of front end bench face 3 is located same horizontal plane with the top face of rear end bench face 12, and the overall structure of rear end bench face 12 is the same with the overall structure of front end bench face 3, can effectively avoid front end bench face 3 to the harmful effects of rear end bench face 12, and then can guarantee this equipment at the job stabilization nature of bench form, has increased the stability in use and the security of this equipment.

In this embodiment, as shown in fig. 1 to 4 and fig. 10 to 15, in order to further improve the placement stability of the trapezoid, a clamping rod 14 is slidably connected to the upper limit of the second angle steel 11, a return spring 15 is sleeved on the clamping rod 14, a top end of the return spring 15 is welded and fixed to a top end of the clamping rod 14, a bottom end of the return spring 15 is welded and fixed to the second angle steel 11, a clamping groove 16 is formed in the first angle steel 2, the clamping rod 14 is connected to a middle portion of the second angle steel 11, a cross section of the clamping rod 14 is "T" -shaped, a diameter of the clamping rod 14 is smaller than an inner space diameter of the return spring 15, a length of the clamping rod 14 is larger than a distance between the second angle steel 11 and an adjacent first angle steel 2, a diameter of the clamping rod 14 is smaller than an inner space diameter of the clamping groove 16, so as to ensure that the clamping rod 14 can perform stable clamping and fixing work in the clamping groove 16, and further ensure that the device is converted into the trapezoid, the stability and the safety of operating condition have increased the use convenience of this equipment.

In this embodiment, as shown in fig. 1 and fig. 5 to fig. 9, in order to further improve the working safety of the ladder-shaped structure, the fixed back plate 13 is slidably connected to a mounting plate 17 in a limited manner, the mounting plate 17 is connected to a main magnetic block 18 and a rubber rod 19 by screws, the bottom end of the rubber rod 19 is connected to the fixed back plate 13 by screws, the fixed back plate 13 is connected to an auxiliary magnetic block 20 and a gear rod 21 by screws, the gear rod 21 is connected to a circular gear 22 in a meshed manner, the circular gear 22 is fixedly welded to the top end of a threaded rod 23, the threaded rod 23 is movably connected to a support rod 24, the bottom end of the support rod 24 is fixedly welded to a support base plate 25, the support rod 24 is slidably connected to the mounting plate 17 in a limited manner, the mounting plate 17 is connected to a fixing frame 26 by screws, the fixing frame 26 is rotatably connected to the threaded rod 23, so as to conveniently control the threaded rod 23 to perform stable rotation work on the fixing frame 26, thereby ensuring the stable supporting work of the subsequent supporting rod 24.

In this embodiment, as shown in fig. 1 and fig. 5 to fig. 9, in order to further improve the convenience of using the mounting plate 17, the central axis of the mounting plate 17 and the central axis of the fixed back plate 13 are located on the same horizontal central line, the width of the mounting plate 17 is smaller than the width of the fixed back plate 13, the main magnetic blocks 18 and the auxiliary magnetic blocks 20 are respectively fixed at the middle of the mounting plate 17 and the middle of the fixed back plate 13, the main magnetic blocks 18 and the auxiliary magnetic blocks 20 are located on the same horizontal plane, rubber rods 19 are symmetrically distributed at the left and right sides of the mounting plate 17, the cross section of the mounting plate 17 is in an "L" shape, circular gears 22 are equidistantly distributed on a gear rod 21, the circular gears 22 are in one-to-one correspondence with supporting rods 24 through threaded rods 23, the threaded rods 23 are in threaded connection with the supporting rods 24, the threaded rods 23 are connected to the central portion of the supporting rods 24, the diameter of the circular gears 22 is smaller than the width of the inner space of the connecting groove 31, the height of the inside top of connecting groove 31 is greater than the height of circular gear 22 top terminal surface, can effectively avoid connecting groove 31 to circular gear 22's harmful effects, and then can guarantee that follow-up circular gear 22 can stably pass connecting groove 31, has increased the use variety and the stability of equipment.

In this embodiment, as shown in fig. 1 and fig. 5 to fig. 9, in order to further improve the stable control operation of the rubber suction cup 30, a fixed frame 26 is welded and fixed with a connecting rod 27, a bottom end of the connecting rod 27 is screwed with a rubber piston 28, the rubber piston 28 is connected in a limiting sliding manner in a conveying pipe 29, the conveying pipe 29 is screwed on a supporting bottom plate 25, a bottom end of the conveying pipe 29 is bolted with the rubber suction cup 30, a connecting groove 31 is formed on a fixed back plate 13, the conveying pipes 29 are symmetrically distributed on the left and right sides of the supporting bottom plate 25, a supporting rod 24 is fixed at the central part of the supporting bottom plate 25, the height of the bottom end surface of the supporting bottom plate 25 is smaller than that of the rubber suction cup 30, the outer end surface of the rubber piston 28 is attached to the inner wall of the conveying pipe 29, the length of the conveying pipe 29 is equal to that of the connecting rod 27, so as to ensure the stable operation effect of the rubber piston 28 in the conveying pipe 29, and then can guarantee that follow-up rubber suction cup 30 carries out stable absorption fixed work to ground, has increased the safety in utilization and the stability of this equipment.

The specific working process of the invention is as follows:

(1) is converted into a ladder shape

When the maintenance equipment starts to work, the initial shape of the maintenance equipment is the stool shape, and when the stool shape needs to be converted into the trapezoid shape for use, firstly, a worker can disassemble the front stool surface 3, then the worker can disassemble the sixth positioning pin 32 connected with the first fixed square pipe 1 and the second fixed square pipe 8 together, at the moment, the rear stool surface 12 can rotate clockwise stably through the first positioning pin 5 connected with the top of the first fixed square pipe 1 and the top of the second fixed square pipe 8 together, at the moment, the rear stool surface 12 is turned to the position of the front stool surface 3 to form the trapezoid shape in a combined manner, meanwhile, the worker can pull the clamping rod 14 on the second angle steel 11 outwards, then the second angle steel 11 on the rear stool surface 12 can drive the clamping rod 14 to be turned to the position of the clamping groove 16 on the first angle steel 2, at the moment, the clamping rod 14 can drive the clamping rod 14 to be clamped into the clamping groove 16 on the first angle steel 2 under the action of the reset spring 15, at this moment, the first angle steel 2 and the second angle steel 11 are clamped and fixed, and then the positioning and fixing work of the ladder shape of the cover maintenance equipment can be conveniently and stably completed.

(2) Perform stable placement of ladder shape

After the maintenance equipment is converted into a ladder shape, a worker can push the mounting plate 17 to slide on the fixed back plate 13 to the universal wheel 4 at the bottom of the equipment by using the foot part until the main magnetic block 18 on the mounting plate 17 and the auxiliary magnetic block 20 on the fixed back plate 13 are stably adsorbed and fixed, and can drive each circular gear 22 and the gear rack rod 21 on the fixed back plate 13 to stably move in opposite directions in the movement process of the mounting plate 17, at the moment, each circular gear 22 can be driven to stably engage and rotate under the action of the gear rack rod 21, the threaded rods 23 on each fixing frame 26 can be driven to rotate in the corresponding supporting rods 24 under the rotation action of the circular gears 22, so that each supporting rod 24 can be driven to downwards stably move on the mounting plate 17, each supporting rod 24 is combined with the corresponding supporting bottom plate 25 at the bottom of the supporting rod 24, and the whole equipment can be conveniently and stably lifted, until each universal wheel 4 contacts with ground, and then can guarantee the stability of this equipment at the trapezoidal body state of placing, and can drive the conveyer pipe 29 downstream of supporting baseplate 25 both sides when bracing piece 24 downstream, and in the motion process of conveyer pipe 29, the rubber piston 28 of linking pole 27 bottom carries out the motion in opposite directions with conveyer pipe 29 in conveyer pipe 29, and then can extract the air in the rubber suction cup 30 of conveyer pipe 29 bottom, and form the negative pressure, rubber suction cup 30 combines supporting baseplate 25 to fix the stable absorption of maintenance facility of ladder form on placing subaerial this moment, and then can prevent effectively that trapezoidal attitude equipment from taking place the universal wheel 4 phenomenon of skidding and leading to the staff injured in the course of the work.

(3) Conversion to plate form

The bench shape can be split into a front bench and a rear bench by pulling out the first positioning pin 5 and the sixth positioning pin 32, then the bench shape can be changed into the bench shape by pulling out the second positioning pin 6 of the front bench and pushing the front bench surface 3 towards the left close to the inclined upright column, after the bench shape is changed, the first positioning pin 5 and the second positioning pin 6 need to be fixed again, the hole position is reserved on the first fixed square pipe 1 which needs to be adjusted by the middle universal wheel 4 in consideration of the stress after the subsequent front and rear split, at the moment, the front bench composed of the first fixed square pipe 1, the first angle steel 2 and the front bench surface 3 can be stably folded, similarly, the bench shape can be changed into the bench shape by pulling out the fourth positioning pin 9 and pushing the rear bench surface 12 towards the left close to the second fixed square pipe 8, after the bench shape is changed, the fourth positioning pin 9 needs to be fixed again, front end concatenation department second fixed side pipe 8 is binding off, there is not the interference, second fixed side pipe 8 this moment, the back bench that second angle steel 11 and rear end bench face 12 are constituteed can stabilize foldingly, the preceding bench after will folding splices with the back bench afterwards, and fix and accomplish the board form with first locating pin 5, consequently this maintenance of equipment is through using the board form, the transform that carries out the using-way that ladder form and bench form can guarantee follow-up to multiple maintenance environment can be convenient stable, labor intensity and cost of maintenance have effectively been reduced, simultaneously, the work efficiency is effectively improved.

To sum up: the invention has the advantages that the device is improved on the basis of the prior art, the sixth positioning pin 32 is disassembled, the rear stool surface 12 can stably rotate clockwise through the first positioning pin 5 which is commonly connected with the tops of the first fixed square pipe 1 and the second fixed square pipe 8, the rear stool surface 12 can be combined into a ladder shape after being overturned to the front stool surface 3, the first fixed square pipe 1, the first angle steel 2 and the front stool surface 3 can be folded by pulling out the first positioning pin 5 and the second positioning pin 6, the second fixed square pipe 8, the second angle steel 11 and the rear stool surface 12 can be folded by pulling out the fourth positioning pin 9, the folded front stool and the folded rear stool can be spliced and fixed to form the plate shape, and the ladder shape and the stool shape of the maintenance equipment can ensure that the subsequent convenient and stable use mode change for various maintenance environments can be realized by using the plate shape, the labor intensity and the maintenance cost are effectively reduced, and meanwhile, the working efficiency is effectively improved.

The ladder-shaped state of the invention can be clamped into the clamping groove 16 on the first angle steel 2 by using the clamping rod 14 and the return spring 15 on the second angle steel 11, so that the positioning and fixing work of the ladder-shaped state can be conveniently and stably completed, and the stability and the safety of the subsequent ladder-shaped working state can be further ensured.

The device is after converting into terraced form, the available foot of staff promotes mounting panel 17 and slides on fixed backplate 13, it is fixed to combine main magnetic block 18 and vice magnetic block 20 to carry out stable absorption, in the motion process of mounting panel 17, pinion rack 21 can drive the downward steady motion of supporting baseplate 25 of bracing piece 24 bottom through circular gear 22 and threaded rod 23, can stably lift this equipment, and then can guarantee this equipment at the stability of the trapezoidal body state of placing, the stability in use of this equipment has been increased.

The device is when using, can drive conveyer pipe 29 and inside rubber piston 28 and carry out the motion in opposite directions when bracing piece 24 downstream, and then can be with the air extraction in its bottom rubber suction cup 30, and form the negative pressure, rubber suction cup 30 combines supporting baseplate 25 can fix the stable absorption of maintenance of terraced form equipment on placing subaerial this moment, and then can prevent effectively that terraced form equipment from taking place the universal wheel 4 phenomenon of skidding at the course of the work and leading to the staff injured, the use variety and the security that have increased this equipment.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.