CN213998012U

CN213998012U - Bridge steel pipe cutting device is used in bridge construction convenient to adjust

Info

Publication number: CN213998012U
Application number: CN202022096742.2U
Authority: CN
Inventors: 秦先文
Original assignee: Individual
Current assignee: Zuo Hongyuan
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-08-20
Anticipated expiration: 2030-09-23

Abstract

The utility model provides a bridge steel pipe cutting device is used in bridge construction convenient to adjust, comprising a base plate, the bottom symmetry fixed mounting of bottom plate has two supports, the equal fixed mounting in left side right side of bottom plate has first mounting panel, the top fixed mounting of a first mounting panel in two first mounting panels has first electric putter, fixed mounting has first backup pad on first electric putter's the output shaft, the right side fixed mounting of first backup pad has first splint, first backup pad slidable mounting has the second splint, the right side fixed mounting of first backup pad has second electric putter, second electric putter's output shaft and second splint fixed connection, the top symmetry slidable mounting of bottom plate has two fixed plates. The utility model discloses can change the position of curved plate according to the demand of cutting position, the stability at cutting position when can guaranteeing the cutting ensures the cutting effect, and can be to cutting department and cutting knife water spray cooling when the cutting, great improvement the life of device.

Description

Bridge steel pipe cutting device is used in bridge construction convenient to adjust

Technical Field

The utility model relates to a bridge construction technical field especially relates to a bridge steel pipe cutting device is used in bridge construction convenient to adjust.

Background

A bridge is a building erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass through, and is called as a bridge, the bridge generally consists of an upper structure, a lower structure, a support and an accessory structure, the upper structure is also called as a bridge span structure and is a main structure for crossing obstacles, the lower structure comprises a bridge abutment, a bridge pier and a foundation, the support is a force transmission device arranged at the bridge span structure and the bridge pier or the support of the bridge abutment, the accessory structure refers to a bridge head butt strap, a conical slope protection, a revetment, a diversion project and the like, the bridge is actually divided into three categories, namely a beam bridge, an arch bridge, a suspension bridge and a cable-stayed bridge, the beam bridge is generally built at a position with large span and shallow water area and consists of a bridge column and a bridge plate, the weight of an object is transmitted to the bridge column from the bridge plate, the arch bridge is generally built above the water area with small span, the bridge is arched, generally provided with a plurality of bridge openings to play a flood discharge function, and the weight in the middle of the bridge is transmitted to two ends, the suspension bridge is the most practical bridge at present, can be built at a place with large span and water depth and consists of bridge columns, iron cables and a bridge floor, the suspension bridge at the early stage can be blown by wind and rain and cannot be broken, and the existing suspension bridge can be basically turned into 23743 when storm comes.

But in the bridge construction process, the cutting of the bridge steel pipe is inconvenient, the adjustment is troublesome, the service life of the device is short, and the influence is great; and (5) the construction efficiency of the bridge.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the bridge steel pipe cutting device for bridge construction is convenient to adjust and aims to solve the problems that the cutting of bridge steel pipes is inconvenient in the bridge construction process, the adjustment is troublesome, the service life of the device is short, great influence is caused, and the construction efficiency of a bridge is high.

The technical scheme of the utility model is that: a bridge steel pipe cutting device convenient to adjust for bridge construction comprises a base plate, wherein two supports are symmetrically and fixedly installed at the bottom of the base plate, first installation plates are fixedly installed on the right side of the left side of the base plate, a first electric push rod is fixedly installed at the top of one of the two first installation plates, a first support plate is fixedly installed on an output shaft of the first electric push rod, a first clamp plate is fixedly installed on the right side of the first support plate, a second clamp plate is slidably installed on the first support plate, a second electric push rod is fixedly installed on the right side of the first support plate, an output shaft of the second electric push rod is fixedly connected with the second clamp plate, two fixed plates are symmetrically and slidably installed at the top of the base plate, the same placing plate is slidably installed on the two fixed plates, an installation rod is slidably installed at the top of the placing plate, a curved plate is fixedly installed at the top of the installation rod, the left sides of the two fixed plates are fixedly provided with the right sides of the connecting plates, the left sides of the two connecting plates are fixedly arranged on the first supporting plates, the top of the bottom plate is slidably provided with a second supporting plate, the top of the other first mounting plate is fixedly provided with a third electric push rod, the output shaft of the third electric push rod is fixedly connected with the second supporting plate, the right side of the second supporting plate is fixedly provided with a fourth electric push rod, the output shaft of the fourth electric push rod is fixedly provided with a second mounting plate, the second mounting plate is slidably arranged on the second supporting plate, the bottom of the second mounting plate is symmetrically and fixedly provided with two third supporting plates, one of the two third supporting plates is fixedly provided with a second driving motor, the output shaft of the second driving motor is fixedly provided with a driving shaft, the driving shaft is fixedly provided with a cutting knife, and the bottom of the second mounting plate is fixedly provided with a water tank, the top fixed mounting of water tank has the inlet tube, the left side fixed mounting of water tank has the outlet pipe, fixed mounting has the piston valve on the outlet pipe, the left side fixed mounting of outlet pipe has the connecting pipe, the flabellum is installed to the connecting pipe internal rotation, rotate the top of installing the transmission shaft in the drive shaft, the bottom and the flabellum of transmission shaft rotate to be connected, the left side fixed mounting of connecting pipe has the connector.

Preferably, the top of placing the board has seted up the mounting groove, and installation pole slidable mounting is in the mounting groove, and threaded mounting has the screw rod on the installation pole.

Preferably, the right side of the screw rod is rotatably installed on the inner wall of the right side of the installation groove, and the left side of the screw rod is fixedly installed on the output shaft of the first driving motor.

Preferably, the top of the bottom plate is fixedly provided with a baffle plate, and the baffle plate is matched with the placing plate.

Preferably, the spout has all been seted up on two fixed plates, and equal fixed mounting has the gag lever post in two spouts, and equal slidable mounting has the one end of bracing piece on two gag lever posts, and the equal fixed mounting of the other end of two bracing pieces is on placing the board.

Preferably, the inner walls of the two sliding grooves are fixedly provided with one ends of springs, and the other ends of the two springs are fixedly arranged on the two supporting rods respectively.

Preferably, a sliding hole is formed in the second supporting plate, and the second mounting plate is slidably mounted in the sliding hole.

Preferably, the bottom end of the transmission shaft is fixedly provided with a driving gear, the fan blades are fixedly provided with a transmission gear, and the driving gear is meshed with the transmission gear.

Preferably, a bearing is fixedly mounted on the left side of the water tank, and the right side of the driving shaft is fixedly connected with an inner ring of the bearing.

Preferably, one end of a fixing rod is fixedly installed at the bottom of the water tank, and the other end of the fixing rod is fixedly installed on the connecting pipe.

Advantageous effects

1. According to the scheme, the bottom plate, the support, the first mounting plate, the first electric push rod, the first supporting plate, the first clamping plate, the second electric push rod, the fixed plate, the placing plate, the mounting groove, the screw rod, the mounting rod, the curved plate, the first driving motor, the connecting plate, the baffle plate, the sliding groove, the limiting rod, the supporting rod, the spring, the second supporting plate, the third electric push rod, the fourth electric push rod, the second mounting plate, the sliding hole, the second driving motor, the third supporting plate, the cutting knife, the driving shaft, the water tank, the water inlet pipe, the water outlet pipe, the piston valve, the connecting pipe, the fan blade, the driving shaft, the driving gear, the transmission gear and the connector are arranged, the screw rod can be driven to rotate through the first driving motor according to the change of the cutting position, so that the position of the curved plate can be adjusted, the stability of the cutting position during cutting can be ensured, and the cutting is convenient;

2. the scheme is characterized in that a bottom plate, a support, a first mounting plate, a first electric push rod, a first supporting plate, a first clamping plate, a second electric push rod, a fixed plate, a placing plate, a mounting groove, a screw rod, a mounting rod, a curved plate, a first driving motor, a connecting plate, a baffle, a chute, a limiting rod, a supporting rod, a spring, a second supporting plate, a third electric push rod, a fourth electric push rod, a second mounting plate, a sliding hole, a second driving motor, a third supporting plate, a cutting knife, a driving shaft, a water tank, a water inlet pipe, a water outlet pipe, a piston valve, a connecting pipe, a fan blade, a driving shaft, a driving gear, a transmission gear and a connector are arranged, when the cutting is carried out, the second driving motor can drive the driving shaft to rotate, the driving shaft drives the fan blade to rotate, so that water is pumped out from the water tank to be sprayed to the cutting knife and cut out, thereby achieving the cooling effect, the damage of the device is avoided, and the service life of the device is greatly prolonged;

the utility model discloses can change the position of curved plate according to the demand of cutting position, the stability at cutting position when can guaranteeing the cutting ensures the cutting effect, and can be to cutting department and cutting knife water spray cooling when the cutting, great improvement the life of device.

Drawings

Fig. 1 is a schematic structural view of a bridge steel pipe cutting device for bridge construction, which is provided by the utility model and is convenient to adjust;

fig. 2 is a schematic side view of the bridge steel pipe cutting device for bridge construction, which is provided by the utility model and is convenient to adjust;

fig. 3 is a schematic structural view of a placing plate, a curved plate and the like of the bridge steel pipe cutting device for bridge construction, which is convenient to adjust;

fig. 4 is a schematic structural view of a part a of the bridge steel pipe cutting device for bridge construction, which is provided by the utility model and is convenient to adjust;

fig. 5 is a schematic structural diagram of a part B of the bridge steel pipe cutting device for bridge construction, which is provided by the utility model and is convenient to adjust;

fig. 6 is the utility model provides a bridge construction is with bridge steel pipe cutting device's partial structure schematic diagram of C convenient to adjust.

In the figure: 1 bottom plate, 2 supports, 3 first mounting panels, 4 first electric putter, 5 first backup pads, 6 first splint, 7 second splint, 8 second electric putter, 9 fixed plates, 10 place the board, 11 mounting grooves, 12 screw rods, 13 installation poles, 14 curved plates, 15 first driving motors, 16 connecting plates, 17 baffles, 18 chutes, 19 gag lever posts, 20 bracing pieces, 21 springs, 22 second backup pads, 23 third electric putter, 24 fourth electric putter, 25 second mounting panels, 26 sliding holes, 27 second driving motors, 28 third backup pads, 29 cutting knife, 30 driving shaft, 31 water tank, 32 inlet tube, 33 outlet tube, 34 piston valve, 35 connecting tube, 36 flabellum, 37 transmission shaft, 38 driving gear, 39 transmission gear, 40 connector.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Example one

Referring to fig. 1-6, a bridge steel pipe cutting device for bridge construction convenient to adjust comprises a base plate 1, two brackets 2 are symmetrically and fixedly installed at the bottom of the base plate 1 for supporting the stability of the whole device, first mounting plates 3 are fixedly installed at the left side and the right side of the base plate 1, a first electric push rod 4 is fixedly installed at the top of one first mounting plate 3 of the two first mounting plates 3, a first supporting plate 5 is fixedly installed on an output shaft of the first electric push rod 4, a first clamping plate 6 is fixedly installed at the right side of the first supporting plate 5, a second clamping plate 7 is slidably installed on the first supporting plate 5, a second electric push rod 8 is fixedly installed at the right side of the first supporting plate 5, an output shaft of the second electric push rod 8 is fixedly connected with the second clamping plate 7, two fixing plates 9 are symmetrically and slidably installed at the top of the base plate 1, and the same placing plate 10 is slidably installed on the two fixing plates 9, the top of the placing plate 10 is slidably provided with a mounting rod 13, the top of the mounting rod 13 is fixedly provided with a curved plate 14, the curved plate 14 can support the cutting position of the steel pipe to ensure the stability of the steel pipe during cutting, the left side of the placing plate 10 is fixedly provided with a first driving motor 15, the left sides of the two fixing plates 9 are fixedly provided with the right sides of connecting plates 16, the left sides of the two connecting plates 16 are fixedly provided on a first supporting plate 5, the top of the bottom plate 1 is slidably provided with a second supporting plate 22, the top of the other first mounting plate 3 is fixedly provided with a third electric push rod 23, the output shaft of the third electric push rod 23 is fixedly connected with the second supporting plate 22, the right side of the second supporting plate 22 is fixedly provided with a fourth electric push rod 24, the output shaft of the fourth electric push rod 24 is fixedly provided with a second mounting plate 25, the second mounting plate 25 is slidably provided on the second supporting plate 22, and the bottom of the second mounting plate 25 is symmetrically and fixedly provided with two third supporting plates 28, fixed mounting has second driving motor 27 on a third backup pad 28 in two third backup pads 28, fixed mounting has drive shaft 30 on second driving motor 27's the output shaft, fixed mounting has cutting knife 29 on drive shaft 30, the bottom fixed mounting of second mounting panel 25 has water tank 31, the top fixed mounting of water tank 31 has inlet tube 32, the left side fixed mounting of water tank 31 has outlet pipe 33, fixed mounting has piston valve 34 on the outlet pipe 33, the left side fixed mounting of outlet pipe 33 has connecting pipe 35, connecting pipe 35 internal rotation installs flabellum 36, the top of rotating the installation of transmission shaft 37 on the drive shaft 30, the bottom and the flabellum 36 of transmission shaft 37 rotate and are connected, the left side fixed mounting of connecting pipe 35 has connector 40.

In this embodiment, the top of placing board 10 has been seted up mounting groove 11, and installation pole 13 slidable mounting is in mounting groove 11, and threaded mounting has screw rod 12 on installation pole 13, has ensured the stable slip of installation pole 13. In this embodiment, the right side of screw rod 12 is rotated and is installed on the right side inner wall of mounting groove 11, and the left side fixed mounting of screw rod 12 has guaranteed the steady rotation of screw rod 12 on first driving motor 15's the output shaft, and makes first driving motor 15 can drive screw rod 12 and rotate.

In this embodiment, the top of the bottom plate 1 is fixedly provided with a baffle 17, and the baffle 17 is matched with the placing plate 10, so that the baffle 17 can push the placing plate 10 to move.

In this embodiment, all seted up spout 18 on two fixed plates 9, equal fixed mounting has gag lever post 19 in two spout 18, and equal slidable mounting has the one end of bracing piece 20 on two gag lever posts 19, and the equal fixed mounting of the other end of two bracing pieces 20 has ensured the stable slip of placing board 10 on placing board 10.

In this embodiment, the inner walls of the two sliding grooves 18 are fixedly provided with one ends of the springs 21, the other ends of the two springs 21 are fixedly provided on the two supporting rods 20, and the elastic force of the springs 21 ensures that the placing plate 10 can be smoothly reset.

In this embodiment, the second support plate 22 is provided with a sliding hole 26, and the second mounting plate 25 is slidably mounted in the sliding hole 26, so that the second mounting plate 25 can stably slide.

In this embodiment, a driving gear 38 is fixedly installed at the bottom end of the transmission shaft 37, a transmission gear 39 is fixedly installed on the fan blade 36, and the driving gear 38 is engaged with the transmission gear 39, so that the transmission shaft 37 can drive the fan blade 36 to rotate.

In this embodiment, the bearing is fixedly installed on the left side of the water tank 31, and the right side of the driving shaft 30 is fixedly connected with the inner ring of the bearing, so that smooth rotation of the driving shaft 30 is ensured.

In this embodiment, the bottom of the water tank 31 is fixedly provided with one end of the fixing rod, and the other end of the fixing rod is fixedly arranged on the connecting pipe 35, so that the stability of the connecting pipe 35 is ensured.

Example two

Referring to fig. 1 to 6, a bridge steel pipe cutting device for bridge construction convenient to adjust comprises a base plate 1, wherein two brackets 2 are symmetrically and fixedly installed at the bottom of the base plate 1 through welding for supporting the stability of the whole device, first mounting plates 3 are fixedly installed at the left side and the right side of the base plate 1 through welding, a first electric push rod 4 is fixedly installed at the top of one first mounting plate 3 of the two first mounting plates 3 through screws, a first support plate 5 is fixedly installed on an output shaft of the first electric push rod 4 through welding, a first clamping plate 6 is fixedly installed at the right side of the first support plate 5 through welding, a second clamping plate 7 is slidably installed on the first support plate 5, a second electric push rod 8 is fixedly installed at the right side of the first support plate 5 through screws, an output shaft of the second electric push rod 8 is fixedly connected with the second clamping plate 7, and two fixing plates 9 are symmetrically and slidably installed at the top of the base plate 1, the two fixing plates 9 are slidably provided with the same placing plate 10, the top of the placing plate 10 is slidably provided with a mounting rod 13, the top of the mounting rod 13 is fixedly provided with a curved plate 14 through welding, the curved plate 14 can support the cutting position of the steel pipe to ensure the stability of the steel pipe during cutting, the left side of the placing plate 10 is fixedly provided with a first driving motor 15 through screws, the left sides of the two fixing plates 9 are fixedly provided with the right sides of connecting plates 16 through welding, the left sides of the two connecting plates 16 are fixedly arranged on the first supporting plate 5 through welding, the top of the bottom plate 1 is slidably provided with a second supporting plate 22, the top of the other first mounting plate 3 is fixedly provided with a third electric push rod 23 through screws, the output shaft of the third electric push rod 23 is fixedly connected with the second supporting plate 22, the right side of the second supporting plate 22 is fixedly provided with a fourth electric push rod 24 through screws, a second mounting plate 25 is fixedly mounted on an output shaft of a fourth electric push rod 24 through welding, the second mounting plate 25 is slidably mounted on a second support plate 22, two third support plates 28 are fixedly mounted at the bottom of the second mounting plate 25 through welding, a second driving motor 27 is fixedly mounted on one of the two third support plates 28 through screws, a driving shaft 30 is fixedly mounted on an output shaft of the second driving motor 27 through welding, a cutting knife 29 is fixedly mounted on the driving shaft 30 through welding, a water tank 31 is fixedly mounted at the bottom of the second mounting plate 25 through welding, a water inlet pipe 32 is fixedly mounted at the top of the water tank 31 through welding, a water outlet pipe 33 is fixedly mounted at the left side of the water tank 31 through welding, a piston valve 34 is fixedly mounted on the water outlet pipe 33 through welding, and a connecting pipe 35 is fixedly mounted at the left side of the water outlet pipe 33 through welding, the fan blades 36 are rotatably mounted in the connecting pipe 35, the top end of the transmission shaft 37 is rotatably mounted on the driving shaft 30, the bottom end of the transmission shaft 37 is rotatably connected with the fan blades 36, and the connecting head 40 is fixedly mounted on the left side of the connecting pipe 35 through welding.

In this embodiment, the top of placing board 10 has been seted up mounting groove 11, and installation pole 13 slidable mounting is in mounting groove 11, and threaded mounting has screw rod 12 on installation pole 13, has ensured the stable slip of installation pole 13.

In this embodiment, the right side of screw rod 12 is rotated and is installed on the right side inner wall of mounting groove 11, and the left side of screw rod 12 is passed through welded fastening and is installed on first driving motor 15's output shaft, has guaranteed the stable rotation of screw rod 12, and makes first driving motor 15 can drive screw rod 12 and rotate.

In this embodiment, the top of the bottom plate 1 is fixedly provided with a baffle 17 by welding, and the baffle 17 is matched with the placing plate 10, so that the baffle 17 can push the placing plate 10 to move.

In this embodiment, all seted up spout 18 on two fixed plates 9, all installed gag lever post 19 through welded fastening in two spout 18, equal slidable mounting has the one end of bracing piece 20 on two gag lever posts 19, and the other end of two bracing pieces 20 is all installed on placing board 10 through welded fastening, has ensured the stable slip of placing board 10.

In this embodiment, the inner walls of the two sliding grooves 18 are respectively provided with one end of each spring 21 by welding, the other ends of the two springs 21 are respectively arranged on the two supporting rods 20 by welding, and the elastic force of the springs 21 ensures that the placing plate 10 can be smoothly reset.

In this embodiment, the bottom end of the transmission shaft 37 is fixedly welded with the driving gear 38, the fan blade 36 is fixedly welded with the transmission gear 39, and the driving gear 38 is engaged with the transmission gear 39, so that the transmission shaft 37 can drive the fan blade 36 to rotate.

In this embodiment, the bearing is fixedly installed on the left side of the water tank 31 by welding, and the right side of the driving shaft 30 is fixedly connected with the inner ring of the bearing, so that smooth rotation of the driving shaft 30 is ensured.

In this embodiment, the bottom of water tank 31 has the one end of dead lever through welded fastening installation, and the other end of dead lever passes through welded fastening installation on connecting pipe 35, has guaranteed the stability of connecting pipe 35.

In this embodiment, when the steel pipe of the bridge is required to be cut, the steel pipe is placed on the first clamping plate 6, the second electric push rod 8 is started, the second electric push rod 8 drives the second clamping plate 7 to move, the second clamping plate 7 and the first clamping plate 6 cooperate to clamp and fix the steel pipe, the third electric push rod 23 is started according to the movement of the first supporting plate 5 driven by the first electric push rod 4, the third electric push rod 23 drives the second supporting plate 22 to move, the second supporting plate 22 drives the second mounting plate 25 to move, the second supporting plate 22 drives the cutting knife 29 to move, the first supporting plate 5 drives the two fixing plates 9 to move through the two connecting plates 16, the two fixing plates 9 drive the placing plate 10 to move, the placing plate 10 drives the mounting rod 13 to move, the mounting rod 13 drives the curved plate 14 to move, when the placing plate 10 moves, due to the blocking of the baffle 17, so that the placing plate 10 can move upwards, thereby making the curved plate 14 also move upwards, finally making the curved plate 14 support the cutting position of the steel pipe, ensuring the stability of the steel pipe during cutting, at this time, starting the second driving motor 27, the second driving motor 27 drives the driving shaft 30 to rotate, the driving shaft 30 drives the cutting knife 29 to rotate, starting the fourth electric push rod 24, the fourth electric push rod 24 drives the second mounting plate 25 to move downwards, the second mounting plate 25 drives the cutting knife 29 to move downwards to cut the steel pipe, simultaneously, the driving shaft 30 drives the transmission shaft 37 to rotate, the transmission shaft 37 drives the fan blades 36 to rotate through the driving gear 38 and the transmission gear 39, the fan blades 36 draw out the water in the water tank 31 through the connector 40 to spray on the cutting knife 29 and the cutting position through rotation, playing the cooling effect, if the cutting position needs to be changed, starting the first driving motor 15, the first driving motor 15 drives the screw 12 to rotate, the screw rod drives the mounting rod 13 to move, and the mounting rod 13 drives the curved plate 14 to move, so that the purpose of adjusting the position of the curved plate 14 is achieved.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. The utility model provides a bridge steel pipe cutting device for bridge construction convenient to adjust, includes bottom plate (1), its characterized in that: the bottom of the bottom plate (1) is symmetrically and fixedly provided with two brackets (2), the left right side of the bottom plate (1) is fixedly provided with a first mounting plate (3), the top of one first mounting plate (3) of the two first mounting plates (3) is fixedly provided with a first electric push rod (4), an output shaft of the first electric push rod (4) is fixedly provided with a first supporting plate (5), the right side of the first supporting plate (5) is fixedly provided with a first clamping plate (6), the first supporting plate (5) is slidably provided with a second clamping plate (7), the right side of the first supporting plate (5) is fixedly provided with a second electric push rod (8), the output shaft of the second electric push rod (8) is fixedly connected with the second clamping plate (7), the top of the bottom plate (1) is symmetrically and slidably provided with two fixing plates (9), and the two fixing plates (9) are slidably provided with the same placing plate (10), the top of a placing plate (10) is provided with a mounting rod (13) in a sliding manner, the top of the mounting rod (13) is fixedly provided with a curved plate (14), the left side of the placing plate (10) is fixedly provided with a first driving motor (15), the left sides of two fixing plates (9) are fixedly provided with the right sides of connecting plates (16), the left sides of the two connecting plates (16) are fixedly provided on a first supporting plate (5), the top of a bottom plate (1) is provided with a second supporting plate (22) in a sliding manner, the top of the other first mounting plate (3) is fixedly provided with a third electric push rod (23), the output shaft of the third electric push rod (23) is fixedly connected with the second supporting plate (22), the right side of the second supporting plate (22) is fixedly provided with a fourth electric push rod (24), the output shaft of the fourth electric push rod (24) is fixedly provided with a second mounting plate (25), the second mounting plate (25) is slidably mounted on the second supporting plate (22), two third supporting plates (28) are symmetrically and fixedly installed at the bottom of the second mounting plate (25), a second driving motor (27) is fixedly installed on one third supporting plate (28) of the two third supporting plates (28), a driving shaft (30) is fixedly installed on an output shaft of the second driving motor (27), a cutting knife (29) is fixedly installed on the driving shaft (30), a water tank (31) is fixedly installed at the bottom of the second mounting plate (25), a water inlet pipe (32) is fixedly installed at the top of the water tank (31), a water outlet pipe (33) is fixedly installed at the left side of the water tank (31), a piston valve (34) is fixedly installed on the water outlet pipe (33), a connecting pipe (35) is fixedly installed at the left side of the water outlet pipe (33), fan blades (36) are rotatably installed in the connecting pipe (35), the top end of a transmission shaft (37) is rotatably installed on the driving shaft (30), and the bottom end of the transmission shaft (37) is rotatably connected with the fan blades (36), the left side of the connecting pipe (35) is fixedly provided with a connector (40).

2. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 1, characterized in that: the top of the placing plate (10) is provided with a mounting groove (11), a mounting rod (13) is slidably mounted in the mounting groove (11), and a screw rod (12) is mounted on the mounting rod (13) in a threaded manner.

3. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 2, characterized in that: the right side of the screw rod (12) is rotatably installed on the inner wall of the right side of the installation groove (11), and the left side of the screw rod (12) is fixedly installed on an output shaft of the first driving motor (15).

4. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 1, characterized in that: the top of the bottom plate (1) is fixedly provided with a baffle (17), and the baffle (17) is matched with the placing plate (10).

5. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 1, characterized in that: all seted up spout (18) on two fixed plates (9), equal fixed mounting has gag lever post (19) in two spout (18), and equal slidable mounting has the one end of bracing piece (20) on two gag lever posts (19), and the equal fixed mounting of the other end of two bracing pieces (20) is on placing board (10).

6. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 5, characterized in that: the inner walls of the two sliding grooves (18) are fixedly provided with one ends of springs (21), and the other ends of the two springs (21) are fixedly arranged on the two supporting rods (20) respectively.

7. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 1, characterized in that: a sliding hole (26) is formed in the second supporting plate (22), and the second mounting plate (25) is slidably mounted in the sliding hole (26).

8. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 1, characterized in that: the bottom end of the transmission shaft (37) is fixedly provided with a driving gear (38), the fan blades (36) are fixedly provided with a transmission gear (39), and the driving gear (38) is meshed with the transmission gear (39).

9. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 1, characterized in that: and a bearing is fixedly arranged on the left side of the water tank (31), and the right side of the driving shaft (30) is fixedly connected with an inner ring of the bearing.

10. The bridge steel pipe cutting device convenient to adjust for bridge construction of claim 1, characterized in that: one end of a fixing rod is fixedly installed at the bottom of the water tank (31), and the other end of the fixing rod is fixedly installed on the connecting pipe (35).