CN113349189A

CN113349189A - Electric power tower clamping device for bird repeller

Info

Publication number: CN113349189A
Application number: CN202110788902.6A
Authority: CN
Inventors: 戴一宁
Original assignee: Shenyang Electric Industry Co ltd; Sheyang Power Supply Branch State Grid Jiangsu Electric Power Co ltd; Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Current assignee: Shenyang Electric Industry Co ltd; Sheyang Power Supply Branch State Grid Jiangsu Electric Power Co ltd; Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-09-07
Anticipated expiration: 2041-07-13
Also published as: CN113349189B

Abstract

The invention discloses an electric power tower clamping device for a bird repeller, which comprises a bottom plate and a mounting plate, wherein the mounting plate is fixed above the bottom plate through four upright posts, a dust blowing hole is formed in the middle position of the bottom plate, a dust blowing device is arranged in the dust blowing hole, the dust blowing device can move up and down under the driving of a lifting mechanism, clamping devices are arranged on the left side and the right side of the bottom plate, and the clamping devices can be driven by a power device to fix bird repeller equipment on an electric power tower.

Description

Electric power tower clamping device for bird repeller

Technical Field

The invention relates to the technical field of electric bird repellers, in particular to an electric tower clamping device for a bird repeller.

Background

Along with the consciousness of human love birds is constantly strengthened, and then make the quantity of birds also constantly increase, and then cause more farmland bird pest easily, in order to avoid mankind and birds to take place the interests conflict, it also becomes more and more popular to drive the bird ware, drives the damage of bird not only can less birds to the farmland, but also can avoid birds to nest on the power tower to cause circuit short circuit and tripping operation.

However, the existing bird repeller has some problems, for example, chinese patent document discloses a bird repeller capable of being mounted on the power tower and its working method, application No. CN202011310519.1, the clamping device of the bird repeller has complex structure and poor stability, when in clamping, the bird repeller is firstly contacted with the square tube of the power tower by the connecting plate (the bird repeller is arranged on the connecting plate), then the clamping component works to drive the clamping part to clamp the bird repeller on the square tube of the power tower, and the clamping of the bird repeller has the following defects that firstly, the power tower is arranged outdoors all the year round, the square tube part to be clamped is easy to have much dust, the connecting plate is placed on the square tube through the connecting plate, the connecting plate is inevitably uneven and is clamped and fixed under the condition of unevenness, the stability is poor, and the opening range of the clamping component cannot be adjusted, so that the adaptability is poor.

Disclosure of Invention

According to the defects of the prior art, the invention provides a power tower clamping device for a bird repeller.

In order to solve the technical problems, the solar panel adjusting bracket provided by the invention comprises a bottom plate, a mounting plate, a soot blowing device, a lifting mechanism, a clamping device, a power device and a controller, wherein the mounting plate is fixed above the bottom plate through four upright posts, a soot blowing hole is formed in the middle of the bottom plate, the soot blowing device is arranged in the soot blowing hole and can move up and down under the driving of the lifting mechanism, the clamping device is arranged on the left side and the right side of the bottom plate, and the clamping device can clamp the bird repeller on a square tube of an electric power tower under the driving of the power device.

Preferably, hoist mechanism includes fixed disk, first spring, first armature, first electro-magnet and locking mechanism, the fixed disk is fixed on soot blower's up end, fixed disk up end intermediate position department is fixed with first armature, and the terminal surface corresponds first armature position department fixed mounting and has first electro-magnet under the mounting panel, first spring one end is fixed on the fixed disk, and the other end is fixed on the mounting panel, locking mechanism includes two, and the symmetry sets up in soot blower both sides, and locking mechanism includes dove shaped plate, first riser, axis of rotation, second armature, second electro-magnet and second spring, the axis of rotation supports between two first risers, first riser and bottom plate fixed connection, dove shaped plate fixed suit is in the axis of rotation, and the dove shaped plate is provided with the latch by the one end of fixed disk, and integrated into one piece has the draw-in groove on the outer face of fixed disk, the latch joint is on the draw-in groove, the lower terminal surface of the other end of dove shaped plate is fixed with second armature, and the corresponding second armature position department of bottom plate up end installs the second electro-magnet, the second spring coupling is between dove shaped plate and bottom plate, and when the latch joint was on the draw-in groove, the spring force of second spring was greater than the spring force of first spring.

Preferably, the clamping device comprises a fixed clamping plate, a movable clamping plate, a clamping shaft, an L-shaped plate, a fixed bolt and a third spring, the fixed splint and the movable splint are both fixed with T-shaped sliding blocks, both two side surfaces of the bottom plate are both provided with T-shaped grooves which are penetrated through, the T-shaped sliding blocks are arranged in the T-shaped grooves in a sliding way, a threaded plate is fixed at one end of the front side of the T-shaped groove, a threaded hole is formed in the threaded plate, the fixing bolt is matched with the threaded hole, the fixing bolt is abutted against the T-shaped sliding block of the fixing clamp plate through the threaded hole, an L-shaped plate is fixed at one end of the rear side of the T-shaped groove, a thread part and a light part are arranged on the clamping shaft, the fixed clamping plate is connected with the thread part in a threaded way, the movable clamping plate is movably connected on the light part, one end of the clamping shaft far away from the fixed clamping plate is rotatably connected on the L-shaped plate, the third spring is an extension spring and is detachably connected between the fixed clamping plate and the movable clamping plate through a hook ring.

Preferably, the fixed clamping plate and the movable clamping plate are respectively fixed with a movable block on the side surface close to the bottom plate, and the upper end surface of the movable block is contacted with the bottom surface of the bottom plate.

Preferably, power device includes belt, first belt pulley, first belt shaft, second belt pulley, second belt shaft, third belt pulley, third belt shaft and motor, first belt shaft, second belt shaft and third belt shaft are crisscross to be fixed on the bottom surface of bottom plate, rotate the cover on the first belt shaft and are equipped with first belt pulley, rotate the cover on the second belt shaft and are equipped with the second belt pulley, rotate the cover on the third belt shaft and are equipped with the third belt pulley, the motor is fixed on the bottom plate, and the output shaft of motor is vertical downwards, and fixed clamping wheel, belt one end is fixed on the movable block of movable clamp plate, and the other end is walked around first belt pulley, second belt pulley and third belt pulley in proper order and is fixed on clamping wheel.

Preferably, the length of the third spring in the initial state is smaller than the width of the square tube of the power tower.

Preferably, the bottom plate further comprises a sucker and a sucker rod, the sucker rod is symmetrically fixed to the bottom surface of the bottom plate and located on two sides of the soot blowing hole, and the sucker is fixed to the tail end of the sucker rod.

Preferably, the opposite surfaces of the fixed clamping plate and the movable clamping plate are respectively fixed with a buffer gasket.

Preferably, the sootblower is a blower.

Preferably, a hand wheel is fixedly arranged on the end face of the clamping shaft close to the threaded part.

The gain effect of the invention is as follows: the electric power tower clamping device for the bird repeller is an improvement on a clamping part of the bird repeller based on the prior art, can blow dust on a square tube of the clamping part by arranging the soot blower capable of moving up and down, and then fixes the clamping device on the square tube of the electric power tower by the sucking disc, so that the electric power tower clamping device is more stable and firm compared with a fixing method in the prior art.

Drawings

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

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

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the lifting mechanism of the present invention;

FIG. 4 is a schematic view of the clamping device and power unit of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

in the figure: 1 bottom plate, 2 mounting plates, 3 upright posts, 4 soot blowers, 401 soot blowing holes, 501 fixed disks, 502 first armatures, 503 first electromagnets, 504 first springs, 601 first risers, 602 rotating shafts, 603 pigeon-shaped plates, 604 latches, 605 clamping grooves, 606 second springs, 607 second armatures, 608 second electromagnets, 701 movable clamping plates, 702 fixed clamping plates, 703 clamping shafts, 7031 threaded parts, 7032 light parts, 704 third springs, 705 hooked rings, 706L plates, 707 threaded plates, 708 fixed bolts, 709 movable blocks, 7010T-shaped sliding blocks, 7011T-shaped grooves, 801 first belt shafts, 802 second belt shafts, 803 third shafts, 804 belts, 901 first belt pulleys, 902 second belt pulleys, 903 third belt pulleys, 904 clamping wheels, 10 motors, 11 handwheels, 12 square tubes, 1301 suckers and sucker rods 1302.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In this embodiment, as shown in fig. 1 to 5, the electric power tower clamping device for a bird repeller provided in this embodiment includes a bottom plate 1, a mounting plate 2, a soot blower 4, a lifting mechanism, a clamping device, a power device and a controller;

upright posts 3 are vertically and upwards fixed at four corners of the upper end surface of the bottom plate 1, and a dust blowing hole 401 is formed in the middle of the bottom plate 1;

the mounting plate 2 is fixed above the bottom plate 1 through four upright posts 3, the bird repeller is arranged on the mounting plate 2, and the specific structure of the bird repeller can refer to the prior art;

the soot blowing device 4 is arranged in the soot blowing hole 401, and the soot blowing device 4 can move up and down under the driving of the lifting mechanism;

as shown in fig. 3, the lifting mechanism includes a fixed plate 501, a first spring 504, a first armature 502, a first electromagnet 503, and a locking mechanism;

the fixed disc 501 is fixed on the upper end face of the soot blower 4, a first armature 502 is fixed in the middle of the upper end face of the fixed disc 501, a first electromagnet 503 is fixedly installed in the position, corresponding to the first armature 502, of the lower end face of the mounting plate 2, one end of the first spring 504 is fixed on the fixed disc 501, the other end of the first spring is fixed on the mounting plate 2, the locking mechanisms comprise two positions and are symmetrically arranged on two sides of the soot blower 4, each locking mechanism comprises a dove-shaped plate 603, a first vertical plate 601, a rotating shaft 602, a second armature 607, a second electromagnet 608 and a second spring 606, the rotating shaft 602 is rotatably supported between the two first vertical plates 601, the first vertical plates 601 are fixedly connected with the bottom plate 1, the dove-shaped plate 603 is fixedly sleeved on the rotating shaft 602, a latch 604 is arranged at one end, close to the fixed disc 501, of the dove-shaped plate 603, a clamping groove 605 is integrally formed on the outer cylindrical face of the fixed disc 501, and the latch 604 is clamped on the clamping groove 605, a second armature 607 is fixed on the lower end face of the other end of the dove-tail shaped plate 603, a second electromagnet 608 is installed on the upper end face of the bottom plate 1 corresponding to the second armature 607, the second spring 504 is connected between the dove-tail shaped plate 603 and the bottom plate 1, and when the latch 604 is clamped on the clamping groove 605, the spring force of the second spring 606 is greater than that of the first spring 504;

the working principle of the lifting mechanism is as shown in fig. 3, in the initial position, the first electromagnet 503 is not energized, the first spring 504 is compressed, the fixed disk 501 is clamped on the latch 604 through the clamping groove 605, it should be noted that the spring force of the second spring 606 is greater than that of the first spring 504, so the fixed disk 501 cannot move downwards under the spring force of the first spring 504, in the working position, the second electromagnet 608 is energized to attract the second armature 607, in this state, the dove-shaped plate 603 rotates outwards, the clamping groove 605 on the fixed disk 501 is separated from the latch 604, the fixed disk 501 drives the soot blower 4 to move downwards under the spring force of the first spring 504, the soot blower 4 is located at the 2-3CM position above the power tower square tube 12 through the dust removing hole 401, and the soot blower 4 is energized to blow off dust at the position to be clamped, after blowing is finished, the soot blower 4 is powered off, the first electromagnet 503 is powered on to attract the first armature 502, the fixed disc 501 moves upwards until the fixed disc is located at the initial position, at the moment, the second electromagnet 608 is powered off to release the second armature 607, the pigeon shaped plate 603 returns to the initial position again under the action of the spring force to clamp the fixed disc 501, and after the fixed disc is clamped, the first electromagnet 503 is powered off to finish locking of the soot blower 4.

Clamping devices are arranged on the left side and the right side of the bottom plate 1, and the clamping devices can clamp the bird repeller on a square tube of the power tower under the driving of a power device;

the clamping device comprises a fixed clamping plate 702, a movable clamping plate 701, a clamping shaft 703, an L-shaped plate 706, a fixed bolt 708, a third spring 704, a movable block 709 and a power device;

a T-shaped sliding block 7010 is fixed on each of the fixed clamp plate 702 and the movable clamp plate 701, a T-shaped groove 7011 is formed on each of two side surfaces of the base plate 1, the T-shaped sliding block 7010 is slidably mounted in the T-shaped groove 7011, a threaded plate 707 is fixed at one end of the front side of the T-shaped groove 7011, a threaded hole is formed in the threaded plate 707, a fixing bolt 708 is adapted to the threaded hole, the fixing bolt 708 abuts against the T-shaped sliding block 7010 of the fixed clamp plate 702 through the threaded hole to limit the fixed clamp plate 702 to move toward the threaded plate 707, it should be noted that, as shown in the figure, the fixing bolt 708 of the present embodiment is slightly longer to reserve an adjustment range of the fixed clamp plate 702, an L plate 706 is fixed at one end of the rear side of the T-shaped groove 7011, the base plate of the L plate 706 is fixedly connected, a threaded portion 7031 and a light portion 7032 are provided on the clamping shaft 703, the fixed clamp plate 702 is threadedly connected to 7031, the movable clamping plate 701 is movably connected to the light portion 7032, one end of the clamping shaft 703, which is far away from the fixed clamping plate 702, is rotatably connected to the L plate 706, that is, the clamping shaft 703 is rotatably supported between the movable clamping plate 701 and the L plate 706, the third spring 704 is an extension spring, the third spring 704 is detachably connected between the fixed clamping plate 702 and the movable clamping plate 701 through a hook ring 705, the length of the third spring 704 in a normal state is smaller than the width of the square pipe 12, specifically, the appropriate third spring 704 is selected according to the required clamping force, the movable blocks 709 are fixed on the side surfaces of the fixed clamping plate 702 and the movable clamping plate 701, which are close to the bottom plate 1, and the upper end surfaces of the movable blocks 709 are in contact with the bottom surface;

the power device comprises a belt 804, a first belt pulley 901, a first belt shaft 801, a second belt pulley 902, a second belt shaft 802, a third belt pulley 903, a third belt shaft 803 and a motor 10;

the first belt shaft 801, the second belt shaft 802 and the third belt shaft 803 are fixed on the bottom surface of the bottom plate 1 in a staggered manner, a first belt pulley 901 is rotatably sleeved on the first belt shaft 801, a second belt pulley 902 is rotatably sleeved on the second belt shaft 802, a third belt pulley 903 is rotatably sleeved on the third belt shaft 803, the motor 10 is fixed on the bottom plate 1, an output shaft of the motor 10 faces downwards vertically, a clamping wheel 904 is fixedly sleeved on the output shaft, one end of the belt 804 is fixed on a movable block 709 of the movable clamping plate 701, and the other end of the belt 804 sequentially bypasses the first belt pulley 901, the second belt pulley 902 and the third belt pulley 903 and is fixed on the clamping wheel 904;

the working principle of the clamping device and the power device is as follows: as shown in fig. 4, in the initial position, under the spring force of the third spring 704, the distance between the fixed clamp plate 702 and the movable clamp plate 701 is smaller than the width of the square pipe to be clamped, when the bird repeller needs to be clamped, the motor 10 starts to work, the belt 804 is wound by the clamping wheel 904, the belt 804 sequentially passes through the third belt pulley 903, the second belt pulley 902 and the first belt pulley 901 to pull the movable clamping plate 701, so that the movable clamping plate 701 is far away from the fixed clamping plate 702, then the clamping device, which is lowered as a whole, positions the square tube 12 between the fixed clamp 702 and the movable clamp 701, after which the motor stops working, the movable clamp 701 moves toward the fixed clamp 702 under the spring force, clamping the square tube 12, and it should be noted that, when clamping, because the motor 10 is not electrified, the output shaft of the motor 10 will rotate reversely under the action of the spring force, the belt 804 is loosened, and the problem that the belt 804 is locked by the motor 10 does not exist; the above is the working principle of the present invention during clamping, and in addition, the present invention can also adjust the position of the fixed clamp plate 702, and during the specific adjustment, only the clamping shaft 703 needs to be rotated, the fixed clamp plate 702 is driven by the thread pair, and the rotational freedom degree of the fixed clamp plate is limited by the T-shaped groove 7011 and the T-shaped sliding block 7010, so that the fixed clamp plate can move along the axial direction of the clamping shaft 703, and after being adjusted to a proper position, the fixed bolt 708 is screwed, and the third spring 704 is selected again.

Further, the bottom plate 1 further comprises a suction cup 1301 and a suction cup rod 1302, the suction cup rod 1302 is symmetrically fixed on the bottom surface of the bottom plate 1 and located on two sides of the dust blowing hole 401, and the suction cup 1301 is fixed at the tail end of the suction cup rod 1302.

Further, in order to further ensure the stability during clamping, a buffer washer is fixed on the opposite surfaces of the fixed clamping plate 702 and the movable clamping plate 701.

Further, the soot blower 4 is a blower in this embodiment.

Further, in the present embodiment, in order to facilitate rotation of the clamp shaft 703, the hand wheel 11 is fixedly provided on the end surface of the clamp shaft 703 near the threaded portion 70331.

The invention is the general technical proposal of the invention, which is mainly the improvement of the clamping structure of the bird repeller in the prior art, other structures can refer to the prior art, and are not described again, when the bird scarer works, the bird scarer flies and is suspended above a part needing to be clamped, then the soot blower 4 is driven by the lifting mechanism to move downwards, after the soot blower moves to a proper position, the soot blower works to clean dust on the square pipe 12, after the cleaning is finished, the bird repeller moves downwards until the sucker 1301 is firmly sucked on the square pipe, in the process, the soot blower 4 works all the time to buffer and ensure the stability during downward movement, after the sucking disc 1301 firmly sucks the square tube 12, the soot blower 4 stops working, and returns to the initial position under the driving of the lifting mechanism, and then the clamping device starts to work to fix the bird repeller on the square tube 12.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a drive bird utensils power tower clamping device which characterized in that: including bottom plate (1), mounting panel (2), soot blower (4), hoist mechanism, clamping device, power device and controller, mounting panel (2) are fixed in bottom plate (1) top through four stands (3), bottom plate (1) intermediate position department is opened there is soot blowing hole (401), is provided with soot blower (4) in soot blowing hole (401), and up-and-down motion can be realized in soot blower (4) under hoist mechanism's drive, bottom plate (1) left and right sides is provided with clamping device, and clamping device can realize pressing from both sides the bird ware tight on square pipe (12) of electric power tower under power device's drive.

2. The electric power tower clamping device for the bird repeller of claim 1, wherein: the lifting mechanism comprises a fixed disc (501), a first spring (504), a first armature (502), a first electromagnet (503) and a locking mechanism, wherein the fixed disc (501) is fixed on the upper end face of a soot blower (4), a first armature (502) is fixed at the middle position of the upper end face of the fixed disc (501), the first electromagnet (503) is fixedly arranged at the position of the mounting plate (2) corresponding to the first armature (502) on the lower end face, one end of the first spring (504) is fixed on the fixed disc (501), the other end of the first spring is fixed on the mounting plate (2), the locking mechanism comprises two parts, the two parts are symmetrically arranged at two sides of the soot blower (4), the locking mechanism comprises a pigeon-shaped plate (603), a first vertical plate (601), a rotating shaft (602), a second armature (607), a second electromagnet (608) and a second spring (606), and the rotating shaft (602) is rotatably supported between the two first vertical plates (601), first riser (601) and bottom plate (1) fixed connection, the fixed suit of pigeon shaped plate (603) is on axis of rotation (602), and pigeon shaped plate (603) is provided with latch (604) by the one end of fixed disk (501), and integrated into one piece has draw-in groove (605) on the outer face of cylinder of fixed disk (501), latch (604) joint is on draw-in groove (605), the lower terminal surface of the other end of pigeon shaped plate (603) is fixed with second armature (607), and second electro-magnet (608) are installed to bottom plate (1) up end corresponding second armature (607) position department, second spring (606) are connected between pigeon shaped plate (603) and bottom plate (1), and when latch (604) joint is on draw-in groove (605), and the spring force of second spring (606) is greater than the spring force of first spring (504).

3. The electric power tower clamping device for the bird repeller of claim 1, wherein: the clamping device comprises a fixed clamping plate (702), a movable clamping plate (701), a clamping shaft (703), an L plate (706), a fixed bolt (708) and a third spring (704), wherein T-shaped sliding blocks (7010) are fixed on the fixed clamping plate (702) and the movable clamping plate (701), two side surfaces of the bottom plate (1) are respectively provided with a T-shaped groove (7011) which penetrates through the two side surfaces, the T-shaped sliding blocks (7010) are slidably mounted in the T-shaped grooves (7011), one end of the front side of each T-shaped groove (7011) is fixedly provided with a threaded plate (707), the threaded plate (707) is provided with a threaded hole, the fixed bolt (708) is matched with the threaded hole, the fixed bolt (708) abuts against the T-shaped sliding blocks (7010) of the fixed clamping plate (702) through the threaded hole, one end of the rear side of each T-shaped groove (7011) is fixedly provided with the L plate (706), and the clamping shaft (703) is provided with a threaded part (7031) and a light part (7032), the fixed clamping plate (702) is in threaded connection with the threaded portion (7031), the movable clamping plate (701) is movably connected to the light portion (7032), one end, far away from the fixed clamping plate (702), of the clamping shaft (703) is rotatably connected to the L plate (706), the third spring (704) is an extension spring, and the third spring (704) is detachably connected between the fixed clamping plate (702) and the movable clamping plate (701) through a hook ring (705).

4. The electric power tower clamping device for the bird repeller of claim 1, wherein: the movable blocks (709) are fixed on the side faces, close to the bottom plate (1), of the fixed clamping plate (702) and the movable clamping plate (701), and the upper end faces of the movable blocks (709) are in contact with the bottom face of the bottom plate (1).

5. The electric power tower clamping device for the bird repeller of claim 1, wherein: the power device comprises a belt (804), a first belt pulley (901), a first belt shaft (801), a second belt pulley (902), a second belt shaft (802), a third belt pulley (903), a third belt shaft (803) and a motor (10), wherein the first belt shaft (801), the second belt shaft (802) and the third belt shaft (803) are fixed on the bottom surface of the bottom plate (1) in a staggered manner, the first belt shaft (801) is rotatably sleeved with the first belt pulley (901), the second belt shaft (802) is rotatably sleeved with the second belt pulley (902), the third belt shaft (803) is rotatably sleeved with the third belt pulley (903), the motor (10) is fixed on the bottom plate (1), the output shaft of the motor (1) is vertically downward and is clamped with the tightening pulley (904), one end of the belt (804) is fixed on a movable block (709) of the movable clamping plate (701), the other end of the belt passes through a first belt pulley (901), a second belt pulley (902) and a third belt pulley (903) in sequence and is fixed on a clamping wheel (904).

6. The electric power tower clamping device for the bird repeller of claim 1, wherein: the length of the third spring (704) in the initial state is smaller than the width of the square tube (12) of the power tower.

7. The electric power tower clamping device for the bird repeller of claim 1, wherein: the bottom plate (1) is further provided with a sucker (1301) and a sucker rod (1302), the sucker rod (1302) is symmetrically fixed to the bottom surface of the bottom plate (1) and located on two sides of the dust blowing hole (401), and the sucker (1301) is fixed to the tail end of the sucker rod (1302).

8. The electric power tower clamping device for the bird repeller of claim 1, wherein: buffer gaskets are fixed on the opposite surfaces of the fixed clamping plate (702) and the movable clamping plate (701).

9. The electric power tower clamping device for the bird repeller of claim 1, wherein: the soot blower (4) is a blower.

10. The electric power tower clamping device for the bird repeller of claim 1, wherein: a hand wheel (11) is fixedly arranged on the end surface of the clamping shaft (703) close to the threaded part (7031).