CN218907341U - Handling device for pile body installation - Google Patents

Abstract

The utility model discloses a carrying device for pile body installation, which comprises a platform, wherein two working blocks are symmetrically arranged at the bottom of the platform, each working block is arranged along the length direction of the platform, and a plurality of universal wheels are arranged at the bottom of each working block; further comprises: the two carrying assemblies are respectively arranged at the top of the platform, the first motor is fixed at the top of the platform, the rotating rollers are fixed at the output ends of the first motor, two first fixing plates are symmetrically fixed at the top of the platform, a first fixing rod is fixed at one side of each first fixing plate, and one end of each first fixing rod extends to correspond to the inside of each rotating roller. When the improved conveying device is used, the pile body is directly lifted from the ground or slowly placed on the ground in the pile body conveying process, the pile body is prevented from colliding in the conveying process, the labor cost in the conveying process is reduced, and the pile body quality is guaranteed.

Description

Handling device for pile body installation

Technical Field

The utility model relates to the field of building conveying equipment, in particular to a conveying device for pile body installation.

Background

The pile body is a building matrix which is frequently used in the building industry.

The utility model provides a water conservancy pile foundation handling device for publication number CN112896270A, relates to a handling device, including tote box and side picture peg, the tote box bottom is provided with shock attenuation strutting arrangement, the first spout of bottom fixedly connected with in the tote box, the inside fixedly connected with slope slider of first spout, slope slider top right side is the incline condition, and the tote box lateral wall rotates and is connected with drive screw, and drive screw rotates with the slope slider to be connected with, the spacing fixed block of tote box top left side fixedly connected with, side picture peg bottom fixedly connected with slip inserted bar, slip inserted bar sliding connection is in tote box top right side. During the use through shock attenuation strutting arrangement's the vibrations problem that the in-process that produces of transportation pile foundation of solution that sets up can be fine, ensure the security of pile foundation transportation through the shock attenuation, the device is still separated different pile foundations through spacing baffle device in addition, avoids the collision that produces between the pile foundation, has further improved the safety of pile foundation, and use experience is good. .

In this patent, when placing the pile body on the device in the device body and carrying to the device or carrying to subaerial from the device from ground, not only need spend the manpower transport, and the in-process pile body of carrying touches with device or ground, leads to the pile surface to damage, has reduced the quality of pile body.

So we propose a handling device for pile installation in order to solve the above mentioned problems.

Disclosure of Invention

The utility model aims to provide a conveying device for pile installation, which solves the problems that in the conveying device in the prior market, when a pile placed on the device is conveyed from the ground to the device or from the device to the ground, the pile is conveyed manually, and the pile surface is damaged and the quality of the pile is reduced due to the contact between the pile and the device or the ground in the conveying process.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pile body installs and uses handling device, includes the platform, the bottom symmetry of platform is provided with two working blocks, every working block all is along the platform length direction sets up, every working block's bottom all is provided with a plurality of universal wheels;

further comprises:

the two conveying assemblies are respectively provided with a first motor, the first motors are fixed at the top of the platform, the output ends of the first motors are fixedly provided with rotating rollers, the top of the platform is symmetrically fixedly provided with two first fixing plates, one side of each first fixing plate is fixedly provided with a first fixing rod, one end of each first fixing rod extends to correspond to the inside of each rotating roller, and each first fixing rod is in rotating connection with the corresponding rotating roller;

two first through holes are formed in the top of the platform, reinforcing steel ropes are wound on the outer peripheral surface of each rotating roller, one end of each reinforcing steel rope is fixed to the outer peripheral surface of each rotating roller, the reinforcing steel ropes are wound on the outer peripheral surface of each rotating roller, and the other ends of the reinforcing steel ropes penetrate through the corresponding first through holes and are fixed with annular belts.

Through adopting above-mentioned technical scheme, be provided with two transport subassemblies, two annular area in the transport subassembly, two annular area are held the both ends of pile body and are held, then drive the live-rollers through first motor and rotate, and the live-rollers drive the reinforcing bar rope motion, and the reinforcing bar rope drives the annular area upward movement that corresponds, in the transport pile body in-process, realizes that the pile body directly mentions or slowly puts on ground from ground, avoids the pile body to bump in the handling.

Preferably, two first standing grooves are formed in one side of each working block, a second motor is arranged at the bottom of the inner wall of each first standing groove, a screw pipe is fixed at the output end of each second motor, a screw rod is arranged in each screw pipe and in threaded connection with the screw pipe, a pressing plate is fixed at one end of each screw rod, located on the outer side of each screw pipe, a rubber block is fixed at one end, away from the corresponding screw rod, of each pressing plate, and the position of each rubber block corresponds to the position of the corresponding annular belt.

Through adopting above-mentioned technical scheme, through being provided with second motor, screwed pipe and screw rod, the second motor drives the screwed pipe and rotates, and the screwed pipe drives the screw rod and moves and drive the rubber piece along the rectilinear direction that screwed pipe self is located, and two rubber pieces grip corresponding annular area simultaneously, fix the pile body that two annular area were embraced.

Preferably, a power supply part and a controller are arranged at the top of the platform, and the power supply part is electrically connected with the two first motors and the four second motors;

the controller is electrically connected with the two first motors and the four second motors.

By adopting the technical scheme, the power supply part supplies power to the two first motors and the four second motors, and the control part controls the rotation directions and the rotation speeds of the two first motors and the four second motors.

Preferably, a support plate is disposed in each first placement groove, the coil passes through the corresponding support plate, and the coil is rotationally connected with the corresponding support plate;

each first placing groove is internally and vertically provided with a limiting plate, two guide rods are symmetrically fixed on one side of each pressing plate, which is close to the corresponding screw rod, each guide rod penetrates through the corresponding limiting plate, each guide rod is in sliding connection with each limiting plate, and each screw rod penetrates through the corresponding limiting plate.

Through adopting above-mentioned technical scheme, be provided with the backup pad, the backup pad supports the screwed pipe, keeps the current position of screwed pipe unchanged, through being provided with limiting plate and two guide arms, avoids the screw rod to rotate along with the screwed pipe together.

Preferably, two third through holes are formed in the other side of each working block, the inside of each third through hole is communicated with the inside of the corresponding first placing groove, a movable door is arranged in each third through hole, the movable door is hinged to the corresponding working block, and locks are jointly arranged on the movable door and the corresponding working block.

Through adopting above-mentioned technical scheme, through being provided with the dodge gate, through opening the dodge gate, operating personnel can see parts such as inside second motor of first standing groove, make things convenient for operating personnel to maintain spare parts such as second motor, solenoid and screw rod.

Preferably, a protection shell is arranged at the top of the platform, two fourth through holes are formed in the top of the protection shell, the positions of the fourth through holes correspond to the positions of the corresponding first motors, and the two first motors, the power supply part and the controller are all located in the protection shell;

two shielding assemblies are arranged on the protective shell;

each shielding assembly comprises a sliding plate, the vertical section of each sliding plate is concave, the two sliding plates are arranged on the protective shell in a sliding mode, sliding grooves are formed in two sides of the inner wall of each sliding plate, two sliding blocks are fixed on each side of the protective shell, one end of each sliding block extends into each sliding groove, and the sliding blocks are connected with the sliding grooves in a sliding mode;

two third standing grooves are formed in the top of the protective shell, straight racks are fixed to one side of the inner wall of each third standing groove, rotating rods are vertically arranged on the top of each sliding plate in a rotating mode, one end of each rotating rod extends to correspond to the inside of each third standing groove and is fixedly provided with a first gear, the first gears are meshed with the straight racks, and a knob is fixed to the other end of each rotating rod.

Through adopting above-mentioned technical scheme, be provided with the protective housing, protective housing protection first motor, live roller, power supply unit and control portion improve live life of live roller, first motor, power supply unit and control portion, be provided with the sliding plate, two fourth through-holes have been seted up at the protective housing top, the sliding plate shelters from corresponding fourth through-hole, makes the fourth through-hole shelter from or open through changing the sliding plate, makes things convenient for spare parts such as operating personnel maintenance first motor, live roller and control portion.

Compared with the prior art, the utility model has the beneficial effects that: when the improved conveying device is used, the pile body is directly lifted from the ground or slowly placed on the ground in the pile body conveying process, so that the pile body is prevented from colliding in the conveying process, the labor cost in the conveying process is reduced, the pile body quality is ensured, and the concrete contents are as follows;

1. the pile body lifting device comprises two conveying components, wherein two annular belts in the conveying components are used for holding two ends of a pile body, then a first motor is used for driving a rotating roller to rotate, the rotating roller drives a reinforcing steel rope to move, the reinforcing steel rope drives the corresponding annular belt to move upwards, and in the pile body conveying process, the pile body is directly lifted from the ground or slowly placed on the ground, so that the pile body is prevented from collision in the pile body conveying process;

2. the pile body is provided with a second motor, a screw pipe and a screw rod, wherein the second motor drives the screw pipe to rotate, the screw pipe drives the screw rod to move along the linear direction of the screw pipe and drives the rubber blocks to move, and the two rubber blocks simultaneously clamp the corresponding annular belts to fix the pile body held by the two annular belts;

3. the screw rod is prevented from rotating along with the screw tube by the aid of the limiting plate and the two guide rods;

4. the movable door is arranged, so that an operator can see the parts such as the second motor and the like in the first placing groove by opening the movable door, and the operator can conveniently maintain the parts such as the second motor, the screw tube and the screw rod and the like;

5. the novel electric motor is provided with a protective shell, the protective shell protects a first motor, a rotating roller, a power supply part and a control part, the service lives of the rotating roller, the first motor, the power supply part and the control part are prolonged, a sliding plate is arranged, two fourth through holes are formed in the top of the protective shell, the sliding plate covers the corresponding fourth through holes, the fourth through holes are covered or opened by changing the sliding plate, and an operator can conveniently maintain parts such as the first motor, the rotating roller and the control part.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic view of the left-hand half-section of FIG. 1 according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2B according to the present utility model;

fig. 5 is a schematic view of a portion of the top view of fig. 1 according to the present utility model.

In the figure: 1. a platform; 11. a working block; 12. a universal wheel; 2. a handling assembly; 21. a first motor; 22. a rotating roller; 23. a first fixing plate; 24. a first fixing rod; 25. a third fixing plate; 13. a first through hole; 25. a reinforcing steel bar rope; 26. an endless belt; 3. a first placement groove; 31. a second motor; 32. a solenoid; 33. a screw; 34. a pressing plate; 35. a rubber block; 4. a power supply section; 41. a controller; 5. a support plate; 51. a limiting plate; 52. a guide rod; 6. a third through hole; 61. a movable door; 62. a lock; 7. a protective shell; 71. a fourth through hole; 8. a shielding assembly; 81. a sliding plate; 82. a sliding groove; 83. a sliding block; 84. a third placement groove; 85. a straight rack; 86. a rotating lever; 87. a first gear; 88. and (5) a knob.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: a carrying device for pile body installation comprises a platform 1. The bottom symmetry of platform 1 is provided with two working blocks 11, and every working block 11 all sets up along platform 1 length direction, and the bottom of every working block 11 all is provided with a plurality of universal wheels 12.

Two carrying assemblies 2 are arranged on the platform 1. Each handling assembly 2 comprises a first motor 21. Both first motors 21 are fixed on top of the platform 1. The output end of the first motor 21 is fixed with a rotating roller 22. Two first fixing plates 23 are symmetrically fixed on the top of the platform 1, a first fixing rod 24 is fixed on one side of the first fixing plate 23, one end of the first fixing rod 24 extends into the corresponding rotating roller 22, and the first fixing rod 24 is in rotary connection with the corresponding rotating roller 22. The top of platform 1 is provided with two third fixed plates 25, and the rotor roll 22 passes corresponding third fixed plate 25, and rotor roll 22 and third fixed plate 25 rotate to be connected. The third fixing plate 25 also functions to support the corresponding rotating roller 22.

Two first through holes 13 are provided at the top of the platform 1. The outer circumferential surface of each rotating roller 22 is wound with a reinforcing rope 25, one end of the reinforcing rope 25 is fixed with the outer circumferential surface of the rotating roller 22, the reinforcing rope 25 is wound on the outer circumferential surface of the rotating roller 22, and the other end of the reinforcing rope 25 passes through the corresponding first through hole 13 and is fixed with an annular belt 26. In operation, the two endless belts 26 respectively hang over the ends of the pile body.

Two carrying assemblies 2 are arranged, two annular belts 26 in the carrying assemblies 2 are used for holding two ends of a pile body, then a rotating roller 22 is driven to rotate through a first motor 21, the rotating roller 22 drives a reinforcing steel rope 25 to move, the reinforcing steel rope 25 drives the corresponding annular belts 26 to move upwards, in the pile body carrying process, the pile body is directly lifted from the ground or slowly placed on the ground, and the pile body is prevented from collision in the carrying process.

The top of platform 1 is provided with protective housing 7, and two fourth through-holes 71 have been seted up at the top of protective housing 7, and fourth through-hole 71 position corresponds with corresponding first motor 21 position, and two first motors 21, power supply unit 4 and controller 41 all are located protective housing 7 inside.

Two shielding assemblies 8 are arranged on the protective shell 7. The shielding member 8 shields the corresponding fourth through hole 71.

Each shutter assembly 8 comprises a sliding plate 81, the vertical section of the sliding plate 81 is concave, and two sliding plates 81 are arranged on the protective shell 7 in a sliding manner. Sliding grooves 82 are formed in two sides of the inner wall of the sliding plate 81, two sliding blocks 83 are fixed on each side of the protective shell 7, one end of each sliding block 83 extends into each sliding groove 82, and the sliding blocks 83 are in sliding connection with the sliding grooves 82. The protection shell 7 is arranged, the protection shell 7 protects the first motor 21, the rotating roller 22, the power supply part 4 and the control part, and the service lives of the rotating roller 22, the first motor 21, the power supply part 4 and the control part are prolonged.

Two third standing grooves 84 have been seted up at protective housing 7 top, and every third standing groove 84 inner wall one side all is fixed with straight rack 85, and the dead lever 86 is worn to be equipped with in the top of every sliding plate 81 all vertical rotation, and the one end of dead lever 86 extends to corresponding third standing groove 84 inside and is fixed with first gear 87, and first gear 87 meshes with straight rack 85 mutually, and the other end of dead lever 86 is fixed with knob 88. Two fourth through holes 71 are formed in the top of the protective shell 7, the sliding plate 81 shields the corresponding fourth through holes 71, and the sliding plate 81 is changed to shield or open the fourth through holes 71, so that an operator can conveniently maintain the first motor 21, the rotating roller 22, the control part and other parts.

Two first standing grooves 3 are formed in one side of each working block 11, a second motor 31 is arranged at the bottom of the inner wall of each first standing groove 3, a screw tube 32 is fixed at the output end of the second motor 31, a screw rod 33 is arranged in the screw tube 32, and the screw rod 33 is in threaded connection with the screw tube 32. Each first placing groove 3 is vertically provided with a limiting plate 51, two guide rods 52 are symmetrically fixed on one side, close to the corresponding screw rod 33, of the pressing plate 34, the two guide rods 52 penetrate through the corresponding limiting plates 51, the guide rods 52 are in sliding connection with the limiting plates 51, and the screw rod 33 penetrates through the corresponding limiting plates 51. A limiting plate 51 and two guide rods 52 are provided to prevent the screw 33 from rotating with the screw tube 32.

Each first placing groove 3 is internally provided with a supporting plate 5, the spiral tube 32 penetrates through the corresponding supporting plate 5, and the spiral tube 32 is rotationally connected with the corresponding supporting plate 5. A support plate 5 is provided, the support plate 5 supporting the coil 32, keeping the existing position of the coil 32 unchanged. The coil 32 is kept in a horizontal state all the time.

One end of the screw 33 located outside the screw tube 32 is fixed with a pressing plate 34, one end of the pressing plate 34 away from the corresponding screw 33 is fixed with a rubber block 35, and the position of the rubber block 35 corresponds to the position of the corresponding annular belt 26. Through being provided with second motor 31, screwed pipe 32 and screw rod 33, second motor 31 drives screwed pipe 32 rotation, and screwed pipe 32 drives screw rod 33 along the rectilinear direction that screwed pipe 32 self was located and drives the rubber piece 35 motion, and two rubber pieces 35 simultaneously hold corresponding annular area 26, fix the pile body that two annular area 26 held.

The top of the platform 1 is provided with a power supply part 4 and a controller 41, and the power supply part 4 is electrically connected with two first motors 21 and four second motors 31; the controller 41 is electrically connected to the two first motors 21 and the four second motors 31. The power supply unit 4 supplies power to the two first motors 21 and the four second motors 31, and the control unit controls the rotational directions and rotational speeds of the two first motors 21 and the four second motors 31.

Two third through holes 6 are formed in the other side of each working block 11, the inside of each third through hole 6 is communicated with the inside of the corresponding first placing groove 3, a movable door 61 is arranged in each third through hole 6, the movable door 61 is hinged with the corresponding working block 11, and a lock 62 is arranged on the movable door 61 and the corresponding working block 11 together. By the movable door 61, an operator can see the parts such as the second motor 31 and the like in the first placing groove 3 by opening the movable door 61, and the operator can conveniently maintain the parts such as the second motor 31, the screw tube 32, the screw 33 and the like.

Working principle:

an operator starts two first motors 21 through a remote controller, and the two first motors 21 drive corresponding rotating rollers 22 to rotate. The rotational speeds of the two first motors 21 are the same. The rotating roller 22 drives the reinforcing steel bar ropes 25 to move, and the reinforcing steel bar ropes 25 drive the corresponding annular belts 26 to move downwards.

When the annular band 26 is in contact with the ground for the most part, the operator lifts one end of the pile body and sleeves the annular band 26 over the pile body. Then, the operator lifts the other end of the pile body and puts another endless belt 26 over the other end of the pile body.

Next, the operator activates the remote control. The two first motors 21 are reversed, and the two first motors 21 drive the corresponding rotating rollers 22 to be reversed. The rotating roller 22 drives the reinforcing steel bar rope 25 to move, and the reinforcing steel bar rope 25 drives the corresponding annular belt 26 to move upwards. The two endless belts 26 drive the pile up. And moves the pile between the two working blocks 11.

Next, the operator activates the two second motors 31 via the remote control. The second motor 31 drives the corresponding screw tube 32 to rotate, the screw tube 32 drives the screw rod 33 to move, and the screw rod 33 moves along the screw tube 32 in the self straight line direction. The screw 33 drives the pressing plate 34 to move, and the pressing plate 34 drives the rubber block 35 to move. The rubber block 35 is brought into contact with the annular band 26 and the annular band 26 is brought into close contact with the pile. The position of the pile body is fixed by two rubber blocks 35.

When the trolley is moved into position. When the operator needs to release the pile body. The operator returns the two rubber blocks 35 to the initial position by means of a remote control. The operator then moves the endless belt 26 downwards again by means of the remote control, and the first motor 21 stops rotating when the pile touches the ground.

The operator lifts the ends of the pile respectively and disengages the annular band 26 from the pile.

When the operator needs to repair the second motor 31, the operator opens the movable door 61 to expose the first through hole 13 to the repair person.

In addition, when the operator needs to repair the first motor 21, the operator rotates the knob 88, the knob 88 drives the rotation lever 86 to rotate, and the rotation lever 86 drives the corresponding first gear 87 to rotate. The first gear 87 drives the rotating rod 86 to move, and drives the rotating rod 86 to move along the length direction of the platform 1, so that the fourth through hole 71 is exposed to the front of the maintenance personnel.

Under the condition of no external force, the first gear 87 is meshed with the straight rack 85, so that the rotating rod 86 cannot rotate autonomously, and finally the sliding plate 81 cannot move autonomously under the condition of no external force.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a handling device for pile body installation, includes platform (1), the bottom symmetry of platform (1) is provided with two working blocks (11), every working block (11) all are along platform (1) length direction sets up, every bottom of working block (11) all is provided with a plurality of universal wheels (12);

characterized by further comprising:

the two conveying components (2), each conveying component (2) comprises a first motor (21), the first motors (21) are fixed at the top of the platform (1), the output ends of the first motors (21) are fixedly provided with rotating rollers (22), two first fixing plates (23) are symmetrically fixed at the top of the platform (1), one side of each first fixing plate (23) is fixedly provided with a first fixing rod (24), one end of each first fixing rod (24) extends to the inside of the corresponding rotating roller (22), and the first fixing rods (24) are in rotary connection with the corresponding rotating rollers (22);

two first through holes (13) are formed in the top of the platform (1), reinforcing ropes (25) are wound on the outer peripheral surface of each rotating roller (22), one end of each reinforcing rope (25) is fixed to the outer peripheral surface of each rotating roller (22), each reinforcing rope (25) is wound on the outer peripheral surface of each rotating roller (22), and the other end of each reinforcing rope (25) penetrates through the corresponding first through hole (13) and is fixed with an annular belt (26).

2. A handling device for pile installation according to claim 1, wherein: two first standing grooves (3) have all been seted up to one side of two working piece (11), every first standing groove (3) inner wall bottom all is provided with second motor (31), the output of second motor (31) is fixed with screwed pipe (32), be provided with screw rod (33) in screwed pipe (32), screw rod (33) with screwed pipe (32) threaded connection, screw rod (33) are located one end in the screwed pipe (32) outside is fixed with clamp plate (34), clamp plate (34) keep away from corresponding one end of screw rod (33) is fixed with rubber piece (35), rubber piece (35) position with correspond annular belt (26) position is corresponding.

3. A handling device for pile installation according to claim 2, wherein: the top of the platform (1) is provided with a power supply part (4) and a controller (41), and the power supply part (4) is electrically connected with the two first motors (21) and the four second motors (31);

the controller (41) is electrically connected with the two first motors (21) and the four second motors (31).

4. A handling device for pile installation according to claim 2, wherein: a supporting plate (5) is arranged in each first placing groove (3), the spiral tube (32) penetrates through the corresponding supporting plate (5), and the spiral tube (32) is in rotary connection with the corresponding supporting plate (5);

every all vertically be provided with limiting plate (51) in first standing groove (3), clamp plate (34) are close to corresponding one side symmetry of screw rod (33) is fixed with two guide arms (52), and two guide arms (52) all pass corresponds limiting plate (51), guide arm (52) with limiting plate (51) sliding connection, screw rod (33) pass corresponds limiting plate (51).

5. A handling device for pile installation according to claim 2, wherein: every opposite side of working piece (11) has all seted up two third through-holes (6), third through-hole (6) are inside to correspond inside being linked together of first standing groove (3), be provided with dodge gate (61) in third through-hole (6), dodge gate (61) with correspond working piece (11) are articulated mutually, dodge gate (61) with correspond be provided with tool to lock (62) jointly on working piece (11).

6. A handling device for pile installation according to claim 3, wherein: the top of the platform (1) is provided with a protective shell (7), two fourth through holes (71) are formed in the top of the protective shell (7), the positions of the fourth through holes (71) correspond to the positions of the corresponding first motors (21), and the two first motors (21), the power supply part (4) and the controller (41) are all located inside the protective shell (7);

two shielding assemblies (8) are arranged on the protective shell (7);

each shielding assembly (8) comprises a sliding plate (81), the vertical section of each sliding plate (81) is concave, two sliding plates (81) are arranged on the protective shell (7) in a sliding mode, sliding grooves (82) are formed in two sides of the inner wall of each sliding plate (81), two sliding blocks (83) are fixed on each side of the protective shell (7), one end of each sliding block (83) extends into each sliding groove (82), and each sliding block (83) is connected with each sliding groove (82) in a sliding mode;

two third standing grooves (84) have been seted up at protective housing (7) top, every third standing groove (84) inner wall one side all is fixed with straight rack (85), every the top of sliding plate (81) is all vertical to rotate and wears to be equipped with dwang (86), the one end of dwang (86) extends to corresponds inside third standing groove (84) and is fixed with first gear (87), first gear (87) with straight rack (85) mesh mutually, the other end of dwang (86) is fixed with knob (88).

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