CN113530422B

CN113530422B - Three-purpose maintenance equipment

Info

Publication number: CN113530422B
Application number: CN202110738376.2A
Authority: CN
Inventors: 史晓明; 邵维嘉; 陶磊
Original assignee: Changshu Tongrun Auto Accessory Co Ltd
Current assignee: Changshu Tongrun Auto Accessory Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2023-03-07
Anticipated expiration: 2041-06-30
Also published as: CN113530422A

Abstract

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 when utilizing the bracing piece downstream and carry out the motion in opposite directions rather than inside rubber piston, and then can extract the air in its bottom rubber suction cup, and rubber suction cup combines supporting baseplate can fix the stable absorption of maintenance of equipment of ladder form at this moment and places subaerially, and then can prevent effectively that trapezoidal attitude equipment from taking place the universal wheel phenomenon of skidding and leading to the staff injured in the course of the work.

Description

Three-purpose maintenance equipment

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 beneficial effects of the invention are:

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 fixed square pipe and the second fixed square pipe, the rear-end stool surface can be combined to form a ladder shape when being overturned to the front-end stool surface, a worker can be clamped into the clamping groove in the first angle steel by using the clamping rod and the reset spring in the second angle steel, 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 follow-up 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 rack, 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 central part at the bracing piece is connected to the threaded rod, and circular gear's diameter is less than the inner space width of spread groove, and the height of inside spread groove face 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 the gear tooth bar configuration 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 stool surface 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 locating 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 fig. 1-4, a three way maintenance of equipment, including first fixed side's 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 the first fixed side's pipe 1, bolted connection has front end bench face 3 on the first angle steel 2, bolted connection has first locating pin 5 and sixth locating pin 32 on first fixed side's pipe 1 and the second fixed side's pipe 8, bolted connection has second locating pin 6 and third locating pin 7 on the first fixed side's pipe 1, bolted connection has fourth locating pin 9 on the second fixed side's pipe 8, fifth locating pin 10 and second angle steel 11, bolted connection has rear end bench face 12 and fixed backplate 13 on the second angle steel 11, first angle steel 2 and second angle steel 11 are symmetric distribution respectively in first fixed side's pipe 1 and the both sides of second fixed side's pipe 8, distance between the second angle steel 11 of both sides is greater than the distance between the first angle steel 2 of both sides, the top of front end bench face 3 and the top of rear end bench face 12 are located on the same horizontal plane, rear end bench face 12 and rear end bench face 12's structure's both sides's effective stability influence of the effective use of this bench face of the front end bench face 3 and the stability of the effective use of the front end bench face of this bench face 3 of the structure can be avoided, and the stability of this bench face to the effective use of the stability of this bench face.

In this embodiment, as shown in fig. 1 to 4 and fig. 10 to 15, in order to further improve the stability of placing the ladder-shaped state, a clamping rod 14 is connected to the upper portion of the second angle steel 11 in a limited 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, a clamping groove 16 is formed in the first angle steel 2, the clamping rod 14 is connected to the middle portion of the second angle steel 11, the cross section of the clamping rod 14 is in a "T" shape, 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 greater than the distance from the second angle steel 11 to 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, so that the clamping rod 14 can perform stable clamping and fixing work in the clamping groove 16, and further can ensure that when the ladder-shaped state of the device is converted into the ladder-shaped state, the working state is stable and safe, and the convenience of the device is increased.

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 state, the fixed back plate 13 is connected with the mounting plate 17 in a limited sliding manner, the mounting plate 17 is connected with the main magnetic block 18 and the rubber rod 19 in a screwed manner, the rubber rod 19 is connected with the fixed back plate 13 in a bottom screwed manner, the fixed back plate 13 is connected with the auxiliary magnetic block 20 and the toothed wheel rod 21 in a screwed manner, the toothed wheel rod 21 is connected with the circular gear 22 in a meshed manner, the circular gear 22 is welded and fixed on the top end of the threaded rod 23, the threaded rod 23 is movably connected with the supporting rod 24 in a screwed manner, the bottom end of the supporting rod 24 is welded and fixed with the supporting bottom plate 25, the supporting rod 24 is connected with the mounting plate 17 in a limited sliding manner, the mounting plate 17 is connected with the fixing frame 26 in a screwed manner, the fixing frame 26 is connected with the threaded rod 23 in a rotating manner, so that the threaded rod 23 can be conveniently controlled to perform stable rotating operation on the fixing frame 26, and further ensure stable supporting operation 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, the circular gears 22 are equidistantly distributed on the gear rod 21, the circular gears 22 are in one-to-one correspondence with the support rods 24 through the threaded rods 23, the threaded rods 23 are connected to the support rods 24, the threaded rods 23 are connected to the central portion of the support rod 24, the diameter of the circular gear 22 is smaller than the width of the internal space of the connection groove 31, the height of the top end surface of the inside the connection groove 31 is greater than the top end surface of the circular gear 22, thereby effectively avoiding the adverse effect of the connection groove 31 on the circular gear 22, and further ensuring that the circular gear 22 can stably pass through the connection groove, and increasing the variety of the device.

In this embodiment, as shown in fig. 1 and fig. 5 to fig. 9, in order to further improve the stable control work of the rubber suction cup 30, a linking rod 27 is welded and fixed on the fixing frame 26, a rubber piston 28 is screwed and connected to the bottom end of the linking rod 27, the rubber piston 28 is connected in a limiting sliding manner in a conveying pipe 29, the conveying pipe 29 is screwed and connected to the supporting base plate 25, the bottom end of the conveying pipe 29 is bolted and connected to the rubber suction cup 30, a connecting groove 31 is formed in the fixed back plate 13, the conveying pipes 29 are symmetrically distributed on the left and right sides of the supporting base plate 25, a supporting rod 24 is fixed to the central portion of the supporting base plate 25, the height of the bottom end face of the supporting base plate 25 is smaller than that of the rubber suction cup 30, the outer end face 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 linking rod 27, so as to ensure the stable work effect of the rubber piston 28 in the conveying pipe 29, and further ensure the stable adsorption and fixation work of the subsequent rubber suction cup 30 to the ground, thereby increasing the safety and stability of the device.

The specific working process of the invention is as follows:

(1) Is converted into a ladder shape

When this maintenance of equipment began the during operation, the initial form of this equipment is the bench form, and need convert the bench form into the trapezoidal form when carrying out the use, at first, the staff can dismantle front end bench face 3, the staff accessible is dismantled first locating pin 32 that first fixed side's pipe 1 and second fixed side's pipe 8 connect jointly afterwards, rear end bench face 12 can carry out stable clockwise rotation through first fixed side's pipe 1 and the common first locating pin 5 of connecting in second fixed side's pipe 8 tops this moment, 12 upset of rear end bench face 3 departments of front end bench face can make up the formation ladder form this moment, meanwhile, staff's accessible stimulates outside card pole 14 on the second angle steel 11 this moment, second angle steel 11 on the rear end bench face 12 can drive card pole 14 upset 16 departments to first angle steel 2 afterwards, card pole 14 this moment can drive card pole 14 block to the draw-in groove 16 on first angle steel 2 under reset spring 15's effect, through being fixed with first angle steel 2 and the second angle steel 11 block this moment, and then the convenient fixed equipment's fixed position fixing of the stationary ladder form of accomplishing.

(2) Perform stable placement of ladder shape

After the maintenance equipment is converted into the ladder shape, a worker can push the mounting plate 17 to slide towards the universal wheels 4 at the bottom of the maintenance equipment on the fixed back plate 13 by using feet 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, each circular gear 22 and the gear rack 21 on the fixed back plate 13 can be driven 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 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, each supporting rod 24 can be driven to stably move downwards 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, the whole maintenance equipment can be conveniently and stably lifted up until each universal wheel 4 is contacted with the ground, the maintenance equipment can be ensured to be stably placed in the ladder shape, and the conveying rod 29 can be driven to move downwards while the supporting bottom of the supporting bottom plate 25 moves downwards, the conveying pipe 29, the air sucking disc 29 can be effectively prevented from sliding in the process of adsorbing rubber piston 29, and the maintenance equipment, the rubber suction disc 29 can be prevented from sliding in the process of the bottom of the maintenance equipment, and the conveying pipe 29, and the maintenance equipment, the rubber.

(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 simultaneously pushing the front end bench surface 3 towards the left near the inclined upright column, because the first positioning pin 5 and the second positioning pin 6 need to be fixed again after the bench shape is changed, 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 end bench surface 3 can be stably folded, and similarly, the bench shape can be changed by pulling out the fourth positioning pin 9 and simultaneously pushing the rear end bench surface 12 towards the left near the second fixed square pipe 8, because become behind the board form, fourth locating pin 9 need 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 folding, 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 equipment is through using the board form, ladder form and bench form can guarantee follow-up can be convenient stable to multiple maintenance environment the transform of carrying out the using-way, labor intensity and cost of maintenance have effectively been reduced, simultaneously, 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-end stool surface 12 can stably rotate clockwise through the first positioning pin 5 which is jointly connected with the tops of the first fixed square pipe 1 and the second fixed square pipe 8, the rear-end stool surface 12 can be combined into a ladder shape after being turned over to the front-end stool surface 3, the first fixed square pipe 1, the first angle steel 2 and the front-end stool surface 3 can be folded by pulling out the first positioning pin 5 and the second positioning pin 6, and similarly, the second fixed square pipe 8, the second angle steel 11 and the rear-end stool surface 12 can be folded by pulling out the fourth positioning pin 9, and then the folded front stool and the folded rear stool can be spliced and fixed to form a plate shape.

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 can carry out stable absorption, in mounting panel 17's motion process, gear rack 21 can drive the supporting baseplate 25 steady motion downwards 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.

Claims

1. The three-purpose maintenance equipment is characterized by comprising a first fixed square pipe (1), a first positioning pin (5), a rear-end stool surface (12) and a fixed back plate (13), wherein the first fixed square pipe (1) is connected with a first angle steel (2) and a universal wheel (4) through bolts, the first angle steel (2) is connected with a front-end stool surface (3) through bolts, the first fixed square pipe (1) and a second fixed square pipe (8) are connected with a first positioning pin (5) and a sixth positioning pin (32) through bolts, the first fixed square pipe (1) is connected with a second positioning pin (6) and a third positioning pin (7) through bolts, the second fixed square pipe (8) is connected with a fourth positioning pin (9), a fifth positioning pin (10) and a second angle steel (11) through bolts, and the second angle steel (11) is connected with the rear-end stool surface (12) and the fixed back plate (13) through bolts; 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 the two sides is larger than that between the first angle steels (2) on the two sides, the top end face of the front stool face (3) and the top end face of the rear stool face (12) are located on the same horizontal plane, and the integral structure of the rear stool face (12) is the same as that of the front stool face (3); a clamping rod (14) is connected to the second angle steel (11) in a limiting sliding mode, a return spring (15) is sleeved on the clamping rod (14), the top end of the return spring (15) is fixedly welded to the top end of the clamping rod (14), the bottom end of the return spring (15) is fixedly welded to the second angle steel (11), and a clamping groove (16) is formed in the first angle steel (2); the fixing backboard (13) is connected with a mounting plate (17) in a limiting sliding mode, a main magnetic block (18) and a rubber rod (19) are connected to the mounting plate (17) through screws, the bottom end of the rubber rod (19) is connected to the fixing backboard (13) through screws, an auxiliary magnetic block (20) and a gear tooth rod (21) are connected to the fixing backboard (13) through screws, a round gear (22) is connected to the gear tooth rod (21) in a meshing mode, the round gear (22) is fixedly welded to the top end of a threaded rod (23), a supporting rod (24) is movably connected to the threaded rod (23), a supporting bottom plate (25) is fixedly welded to the bottom end of the supporting rod (24), the supporting rod (24) is connected to the mounting plate (17) in a limiting sliding mode, a fixing frame (26) is connected to the mounting plate (17) through screws, and the threaded rod (23) is rotatably connected to the fixing frame (26); the clamping rod (14) is connected to the middle 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); the central axis of the mounting plate (17) and the central axis of the fixed backboard (13) are positioned on the same horizontal central line, the width of the mounting plate (17) is smaller than that of the fixed backboard (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 backboard (13), the main magnetic block (18) and the auxiliary magnetic block (20) are positioned 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; the circular gears (22) are equidistantly distributed on the gear tooth rods (21), the circular gears (22) correspond to the support rods (24) one by one through 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 parts 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 face of the inner part of the connecting grooves (31) is larger than that of the top end face of the circular gears (22); welded fastening has the pole (27) that links up on mount (26), and the bottom screwed connection that links up pole (27) has rubber piston (28), and rubber piston (28) spacing sliding connection is in conveyer pipe (29), and conveyer pipe (29) screwed connection is on supporting baseplate (25), and the bottom bolted connection of conveyer pipe (29) has rubber suction cup (30), connecting groove (31) have been seted up on fixed backplate (13).

2. The three-purpose service apparatus according to claim 1, 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).