CN217867833U

CN217867833U - Simple crane for constructional engineering

Info

Publication number: CN217867833U
Application number: CN202220935533.9U
Authority: CN
Inventors: 路大伟; 武瑞宏; 侯晓薇; 焦桦
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-11-22
Anticipated expiration: 2032-04-21

Abstract

The utility model provides a simple crane for constructional engineering, which belongs to the technical field of engineering construction and aims to solve the problems that the existing simple crane is complex to disassemble when moving an operation field, and the steel wire ropes cannot be arranged in order, thereby not only reducing the working efficiency of the crane, but also reducing the service life of the steel wire ropes; the two groups of locking assemblies are respectively arranged at the inner sides of the two groups of driving gears; the two groups of transmission screw rods are respectively arranged at the inner sides of the two groups of locking components; the adjusting support plate is connected to the top end of the support base in a sliding manner; the track support frame is in transmission connection with the transmission lead screw; the roller receiving supporting piece is connected to the lower end of the track supporting frame in a sliding manner; the rope-collecting guide assembly is arranged above the inside of the track support frame; this loop wheel machine not only easy operation when assembling has also saved the very big improvement of staff's of intensity of labour of manpower simultaneously.

Description

Simple crane for construction engineering

Technical Field

The utility model belongs to the technical field of the engineering construction, more specifically say, in particular to plain type loop wheel machine for building engineering.

Background

On some construction ground, because the building materials are all great and comparatively heavy, it is difficult to remove the building materials to the appointed place to rely on the manpower alone, and plain type loop wheel machine mounting structure is simple, and convenient to use receives wide-spread use, but dismantles and reinstallates when plain type loop wheel machine shifts the operation place.

Based on the above, the existing simple crane is troublesome to disassemble when moving an operation field, and mostly depends on the matching of the steel wire rope and the motor to carry out lifting operation, and the steel wire rope cannot be arranged in order when lifting and retracting the rope, so that the working efficiency of the crane is reduced, and the service life of the steel wire rope is also reduced.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a simple crane for construction engineering is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a plain type loop wheel machine for building engineering to it is comparatively loaded down with trivial details to solve current simple and easy loop wheel machine dismantlement when removing the operation place, and mostly relies on the cooperation of wire rope and motor to lift by crane the operation, and the unable neatly arranged of wire rope has not only reduced the work efficiency of loop wheel machine when lifting by crane and receive the rope and has also reduced wire rope's life problem simultaneously.

The utility model discloses purpose and efficiency of plain type loop wheel machine for building engineering are reached by following concrete technological means:

the simple crane for the building engineering comprises a supporting base, a gear transmission assembly, a locking assembly, a transmission screw rod, an adjusting supporting plate, a track supporting frame, a roller receiving supporting piece and a rope receiving guiding assembly; the gear drive subassembly sets up inside supporting pedestal, the gear drive subassembly including: two groups of driving gears are arranged, and the two groups of driving gears are respectively and rotatably connected to the left side and the right side in the supporting base; the two groups of locking assemblies are arranged on the inner sides of the two groups of driving gears respectively; the two groups of transmission screw rods are respectively arranged at the inner sides of the two groups of locking assemblies; the adjusting support plate is connected to the top end of the support base in a sliding manner; the track support frame is in transmission connection with the transmission lead screw; the roller receiving supporting piece is connected to the lower end of the track supporting frame in a sliding manner; the rope-receiving guide assembly is arranged above the inside of the track support frame.

Further, the gear transmission assembly further comprises: a driven gear, a first motor; the driven gears are rotatably connected to the inner sides of the two groups of driving gears and are respectively meshed with the two groups of driving gears; the first motor is arranged at the bottom end of the left driving gear, and the left driving gear is fixedly connected to a rotating shaft of the first motor.

Further, the locking assembly comprises: the elastic adjusting piece, the clamping block, the adjusting bolt and the adjusting nut; the two groups of elastic adjusting pieces are respectively arranged at the front end and the rear end inside the driving gear; the two groups of clamping blocks are respectively and fixedly connected in the two groups of elastic adjusting pieces; the two groups of adjusting bolts are respectively in threaded connection with the left side and the right side of the upper ends of the two groups of clamping blocks; the two groups of adjusting nuts are respectively in threaded connection with the outer sides of the two groups of adjusting bolts;

the regulation backup pad including: a lifting cylinder and a height adjusting rod; the lifting cylinder is arranged at the central position of the end surface of the bottom of the adjusting support plate, the bottom end of the lifting cylinder is fixedly connected with the support base, four groups of height adjusting rods are arranged on the outer side of the adjusting support plate uniformly, and the bottom ends of the height adjusting rods are fixedly connected with the support base;

the track support frame is including: the transmission hole is formed in the right side of the end face of the top of the track supporting frame, the inner side of the transmission hole is in transmission connection with the two groups of transmission lead screws, and the transmission hole and the transmission lead screws jointly form a lead screw nut transmission pair.

Further, the track support frame still includes: the sliding groove, the adjusting screw rod and the second motor are arranged in the sliding groove; the sliding groove is formed in the center of the end face of the bottom of the rail support frame; the adjusting screw rod is rotatably connected to the center position in the track supporting frame; the second motor is arranged on the right side of the adjusting screw rod, and the adjusting screw rod is fixedly connected to a rotating shaft of the second motor;

receive roller support piece including: the guide hole is formed in the center of the top end of the roller receiving supporting piece, the inner side of the guide hole is in transmission connection with the adjusting lead screw, and the adjusting lead screw and the guide hole jointly form a lead screw nut transmission pair.

Further, the roll receiving supporting piece further comprises: a roller collecting motor and a rope collecting roller; the roller collecting motor is arranged at the front end of the roller collecting support piece; the rope winding roller is rotatably connected inside the rope winding roller supporting piece, and the front end of the rope winding roller is fixedly connected with a rotating shaft of the rope winding roller motor.

Further, the receipts rope direction subassembly includes: the gear transmission module, the guide screw rod and the guide piece are arranged on the guide rod; the gear transmission module is rotatably connected above the rope winding roller, and a group of gears at the bottom of the gear transmission module are fixedly connected to the outer side of the rope winding roller; the guide screw rod is concentrically and fixedly connected to the top end of the gear transmission module; the guide piece is connected to the outer side of the guide screw in a transmission manner.

Compared with the prior art, the utility model discloses following beneficial effect has:

when the utility model is used, two groups of driving gears realize the simultaneous rotation through the driven gear when the first motor is started; the track support frame and the roller collecting support piece are assembled and then placed at the upper end of the adjusting support plate, then two groups of transmission lead screws are inserted in the track support frame and the roller collecting support piece in a penetrating manner, the adjusting support plate slides upwards through the lifting cylinder and the height adjusting rod when the lifting cylinder is started, finally, the adjusting nut is rotated to lock the transmission lead screws on the two groups of driving gears through the matching of the adjusting bolt, the elastic adjusting piece and the clamping block, the two groups of transmission lead screws rotate simultaneously through the driving gears when the first motor is started, the track support frame drives upwards through the transmission holes when the transmission lead screws rotate, and the assembly of the crane is completed when the track support frame is driven to a specific position;

when the second motor is started, the screw rod is adjusted to rotate, the roller collecting supporting piece slides left and right through the guide hole and the sliding groove when the screw rod is adjusted to rotate, and the left and right sliding of the lifted heavy object is realized through the left and right sliding of the roller collecting supporting piece, so that the working efficiency of the crane and the use flexibility of the crane are greatly improved;

when a rope collecting roller motor is started, the rope collecting roller realizes rotation, and when the rope collecting roller rotates, the hoisting and rope collecting process of the crane is realized; the gear transmission module is driven to rotate simultaneously when the rope winding roller rotates, the guide screw is driven to rotate by rotation of the gear transmission module, the guide piece is driven to slide back and forth when the guide screw rotates, the steel wire rope neatly arranged when the rope winding roller winds the rope is realized by sliding the guide piece back and forth, the steel wire rope neatly arranged when the rope winding roller winds the rope is improved by neatly arranging the steel wire rope, the working efficiency of the crane during working is improved, the service life of the steel wire rope is prolonged, and the production adding cost of an enterprise is greatly reduced.

Drawings

Fig. 1 is an isometric structural schematic diagram of the present invention.

Fig. 2 is a schematic view of the connection structure of the gear transmission assembly and the transmission screw rod of the present invention.

Fig. 3 is a schematic view of the connection structure between the gear transmission assembly and the locking assembly of the present invention.

Fig. 4 is a schematic structural diagram of the locking assembly of the present invention.

Fig. 5 is a schematic structural view of the rail supporting frame of the present invention.

Fig. 6 is a schematic view of the connection structure of the roll-receiving supporting member and the adjusting screw rod of the present invention.

Fig. 7 is a schematic view of the connection structure of the rope-collecting guiding assembly and the rope-collecting roller of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a support base; 2. a driving gear; 201. a driven gear; 202. an elastic adjustment member; 203. a clamping block; 204. adjusting the bolt; 205. adjusting the nut; 206. a first motor; 3. a drive screw; 4. adjusting the support plate; 401. a lifting cylinder; 402. a height adjusting rod; 5. a rail support frame; 501. a drive bore; 502. a sliding groove; 503. adjusting the lead screw; 504. a second motor; 6. a take-up roll support; 601. a guide hole; 603. a roller collecting motor; 604. a rope reeling roller; 605. a gear transmission module; 606. a guide screw; 607. a guide member.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 7:

the utility model provides a simple crane for constructional engineering, which comprises a supporting base 1, a gear transmission assembly, a locking assembly, a transmission screw rod 3, an adjusting supporting plate 4, a track supporting frame 5, a roller-receiving supporting piece 6 and a rope-receiving guiding assembly; the gear drive subassembly sets up inside support base 1, and the gear drive subassembly is including: two groups of driving gears 2 are arranged, and the two groups of driving gears 2 are respectively and rotatably connected to the left side and the right side inside the support base 1; two groups of locking assemblies are arranged on the inner sides of the two groups of driving gears 2 respectively; two groups of transmission screw rods 3 are arranged, and the two groups of transmission screw rods 3 are respectively arranged at the inner sides of the two groups of locking assemblies; the adjusting support plate 4 is connected to the top end of the support base 1 in a sliding manner; the track support frame 5 is connected with the transmission screw rod 3 in a transmission way; the roller receiving supporting piece 6 is connected to the lower end of the track supporting frame 5 in a sliding manner; receive rope guide assembly and set up in track support frame 5 inside top.

Wherein, gear drive assembly still includes: a driven gear 201, a first motor 206; the driven gear 201 is rotatably connected to the inner sides of the two groups of driving gears 2, and the driven gear 201 is respectively meshed with the two groups of driving gears 2; the first motor 206 is arranged at the bottom end of the driving gear 2 on the left side, and the driving gear 2 on the left side is fixedly connected with the rotating shaft of the first motor 206; in use, the two sets of driving gears 2 are simultaneously rotated via the driven gear 201 when the first motor 206 is activated.

Wherein, locking Assembly includes: the elastic adjusting piece 202, the clamping block 203, the adjusting bolt 204 and the adjusting nut 205; two groups of elastic adjusting pieces 202 are arranged, and the two groups of elastic adjusting pieces 202 are respectively arranged at the front end and the rear end inside the driving gear 2; two groups of clamping blocks 203 are arranged, and the two groups of clamping blocks 203 are respectively and fixedly connected with the inner sides of the two groups of elastic adjusting pieces 202; two groups of adjusting bolts 204 are arranged, and the two groups of adjusting bolts 204 are respectively in threaded connection with the left side and the right side of the upper ends of the two groups of clamping blocks 203; two groups of adjusting nuts 205 are provided, and the two groups of adjusting nuts 205 are respectively connected to the outer sides of the two groups of adjusting bolts 204 in a threaded manner;

the adjusting support plate 4 comprises: a lifting cylinder 401 and a height adjusting rod 402; the lifting cylinder 401 is arranged at the central position of the bottom end face of the adjusting support plate 4, the bottom end of the lifting cylinder 401 is fixedly connected with the support base 1, four groups of height adjusting rods 402 are arranged, the four groups of height adjusting rods 402 are uniformly arranged at the outer side of the adjusting support plate 4, and the bottom end of each height adjusting rod 402 is fixedly connected with the support base 1;

track support frame 5 is including: the transmission hole 501 is formed in the right side of the top end face of the track support frame 5, the inner side of the transmission hole 501 is in transmission connection with the two groups of transmission lead screws 3, and the transmission hole 501 and the transmission lead screws 3 jointly form a lead screw nut transmission pair; in use, the track support frame 5 and the roller collecting support piece 6 are assembled and then placed at the upper end of the adjusting support plate 4, then two groups of transmission screws 3 are inserted in the track support frame 5 and the roller collecting support piece 6, when the lifting cylinder 401 is started, the adjusting support plate 4 slides upwards through the lifting cylinder 401 and the height adjusting rod 402, finally, the transmission screws 3 are locked on the two groups of driving gears 2 by rotating the adjusting nut 205 through the matching of the adjusting bolt 204, the elastic adjusting piece 202 and the clamping block 203, when the first motor 206 is started, the two groups of transmission screws 3 rotate simultaneously through the driving gears 2, when the transmission screws 3 rotate, the track support frame 5 is upwards transmitted through the transmission holes 501, when the track support frame 5 is transmitted to a specific position, the assembling of the crane is completed, the operation is simple, meanwhile, the labor intensity of manpower is saved, and the working efficiency of workers is greatly improved.

Wherein, track support frame 5 is still including: a sliding groove 502, an adjusting screw 503 and a second motor 504; the sliding groove 502 is arranged at the central position of the end surface of the bottom of the track support frame 5; the adjusting screw 503 is rotatably connected to the central position inside the track support frame 5; the second motor 504 is arranged on the right side of the adjusting screw 503, and the adjusting screw 503 is fixedly connected to the rotating shaft of the second motor 504;

the take-up roll support 6 comprises: the guide hole 601 is formed in the center of the top end of the roller receiving support 6, the inner side of the guide hole 601 is in transmission connection with the adjusting lead screw 503, and the adjusting lead screw 503 and the guide hole 601 jointly form a lead screw nut transmission pair; in use, when the second motor 504 is started, the adjusting lead screw 503 is adjusted to rotate, when the adjusting lead screw 503 rotates, the roller receiving supporting piece 6 slides left and right through the guide hole 601 and the sliding groove 502, and the left and right sliding of the lifted heavy object is realized through the left and right sliding of the roller receiving supporting piece 6, so that the working efficiency of the crane and the use flexibility of the crane are greatly improved.

Wherein, receive roller support 6 still including: a take-up roller motor 603 and a take-up roller 604; the roller receiving motor 603 is arranged at the front end of the roller receiving supporting piece 6; the rope collecting roller 604 is rotatably connected inside the rope collecting roller supporting piece 6, and the front end of the rope collecting roller 604 is fixedly connected with a rotating shaft of the rope collecting roller motor 603; in use, when the rope collecting roller motor 603 is started, the rope collecting roller 604 rotates, and when the rope collecting roller 604 rotates, the hoisting rope collecting process of the crane is realized.

Wherein, receive rope guide assembly including: a gear transmission module 605, a guide screw 606 and a guide piece 607; the gear transmission module 605 is rotatably connected above the rope collecting roller 604, and a group of gears at the bottom of the gear transmission module 605 is fixedly connected to the outer side of the rope collecting roller 604; the guide screw 606 is concentrically and fixedly connected to the top end of the gear transmission module 605; the guide piece 607 is in transmission connection with the outer side of the guide screw 606; in use, when the rope winding roller 604 rotates, the gear transmission module 605 is driven to rotate simultaneously, the rotation of the gear transmission module 605 drives the guide screw 606 to rotate, the guide screw 606 drives the guide piece 607 to slide back and forth when rotating, the steel wire ropes are neatly arranged when the rope winding roller 604 winds the rope through the front and back sliding of the guide piece 607, the working efficiency of the crane during working is improved through the neatly arranged steel wire ropes, the service life of the steel wire ropes is prolonged, and the production and adding cost of enterprises is greatly reduced.

The specific use mode and function of the embodiment are as follows:

when the utility model is used, when the first motor 206 is started, the two groups of driving gears 2 realize the simultaneous rotation through the driven gear 201; the track support frame 5 and the roller receiving support piece 6 are assembled and then placed at the upper end of the adjusting support plate 4, then two groups of transmission lead screws 3 are inserted in the track support frame 5 and the roller receiving support piece 6, the adjusting support plate 4 slides upwards through the lifting cylinder 401 and the height adjusting rod 402 when the lifting cylinder 401 is started, finally the transmission lead screws 3 are locked on the two groups of driving gears 2 by rotating the adjusting nuts 205 through the matching of the adjusting bolts 204, the elastic adjusting pieces 202 and the clamping blocks 203, the two groups of transmission lead screws 3 rotate simultaneously through the driving gears 2 when the first motor 206 is started, the track support frame 5 drives upwards through the transmission holes 501 when the transmission lead screws 3 rotate, and the assembly of the crane is completed when the track support frame 5 is driven to a specific position, so that the operation of the crane is simple, the labor intensity of manpower is saved, and the working efficiency of workers is greatly improved; when the second motor 504 is started, the screw 503 is adjusted to rotate, when the screw 503 is adjusted to rotate, the roller-retracting support piece 6 slides left and right through the guide hole 601 and the sliding groove 502, and the left and right sliding of the lifted heavy object is realized through the left and right sliding of the roller-retracting support piece 6, so that the working efficiency of the crane and the use flexibility of the crane are greatly improved; when a rope collecting roller motor 603 is started, a rope collecting roller 604 rotates, and when the rope collecting roller 604 rotates, a hoisting rope collecting process of the crane is realized; when the rope winding roller 604 rotates, the gear transmission module 605 is driven to rotate simultaneously, the rotation of the gear transmission module 605 drives the guide screw 606 to rotate, the guide screw 606 drives the guide piece 607 to slide back and forth when rotating, the steel wire ropes are neatly arranged when the rope winding roller 604 winds the rope through the front and back sliding of the guide piece 607, the working efficiency of the crane during working is improved through the neatly arranged steel wire ropes, the service life of the steel wire ropes is prolonged, and the production and adding cost of an enterprise is greatly reduced.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. Plain type loop wheel machine for building engineering, its characterized in that: the device comprises a supporting base (1), a gear transmission assembly, a locking assembly, a transmission screw rod (3), an adjusting supporting plate (4), a track supporting frame (5), a roller receiving supporting piece (6) and a rope receiving guiding assembly; the gear transmission assembly is arranged inside the supporting base (1), and comprises: two groups of driving gears (2) are arranged, and the two groups of driving gears (2) are respectively and rotatably connected to the left side and the right side inside the supporting base (1); the two groups of locking assemblies are respectively arranged on the inner sides of the two groups of driving gears (2); the two groups of transmission screw rods (3) are arranged, and the two groups of transmission screw rods (3) are respectively arranged at the inner sides of the two groups of locking assemblies; the adjusting support plate (4) is connected to the top end of the support base (1) in a sliding manner; the track support frame (5) is in transmission connection with the transmission screw rod (3); the roller collecting supporting piece (6) is connected to the lower end of the track supporting frame (5) in a sliding manner; the rope winding guide assembly is arranged above the inner part of the track support frame (5).

2. The simple crane for construction engineering as claimed in claim 1, wherein: the gear transmission assembly further comprises: a driven gear (201), a first motor (206); the driven gears (201) are rotatably connected to the inner sides of the two groups of driving gears (2), and the driven gears (201) are respectively meshed with the two groups of driving gears (2); the first motor (206) is arranged at the bottom end of the left driving gear (2), and the left driving gear (2) is fixedly connected to a rotating shaft of the first motor (206).

3. The simple crane for construction engineering as claimed in claim 1, wherein: the locking assembly comprises: the elastic adjusting piece (202), the clamping block (203), the adjusting bolt (204) and the adjusting nut (205); two groups of elastic adjusting pieces (202) are arranged, and the two groups of elastic adjusting pieces (202) are respectively arranged at the front end and the rear end inside the driving gear (2); two groups of clamping blocks (203) are arranged, and the two groups of clamping blocks (203) are respectively and fixedly connected to the inner sides of the two groups of elastic adjusting pieces (202); two groups of adjusting bolts (204) are arranged, and the two groups of adjusting bolts (204) are respectively in threaded connection with the left side and the right side of the upper ends of the two groups of clamping blocks (203); two groups of adjusting nuts (205) are arranged, and the two groups of adjusting nuts (205) are respectively in threaded connection with the outer sides of the two groups of adjusting bolts (204);

the adjusting support plate (4) comprises: a lifting cylinder (401) and a height adjusting rod (402); the lifting cylinder (401) is arranged at the central position of the bottom end face of the adjusting support plate (4), the bottom end of the lifting cylinder (401) is fixedly connected with the support base (1), four groups of height adjusting rods (402) are provided, the four groups of height adjusting rods (402) are uniformly arranged on the outer side of the adjusting support plate (4), and the bottom end of each height adjusting rod (402) is fixedly connected with the support base (1);

track support frame (5) including: the transmission hole (501), set up on the right side of track support frame (5) top terminal surface in transmission hole (501), transmission hole (501) inboard is connected with two sets of drive screw (3) transmission, and drive hole (501) and drive screw (3) constitute screw nut transmission pair jointly.

4. The simplified crane for construction work as set forth in claim 1, wherein: the track support frame (5) further comprises: a sliding groove (502), an adjusting screw rod (503) and a second motor (504); the sliding groove (502) is formed in the center of the end face of the bottom of the track supporting frame (5); the adjusting screw rod (503) is rotatably connected to the center position inside the track support frame (5); the second motor (504) is arranged on the right side of the adjusting screw rod (503), and the adjusting screw rod (503) is fixedly connected with a rotating shaft of the second motor (504);

the take-up roll support (6) comprises: the guide hole (601), the central point that the guide hole (601) was seted up at receipts roller support piece (6) top puts, and the inboard and the adjusting screw (503) transmission of guide hole (601) are connected, and adjusting screw (503) and guide hole (601) constitute screw nut transmission pair jointly.

5. The simplified crane for construction work as set forth in claim 1, wherein: the roll-up support (6) further comprises: a roller collecting motor (603) and a rope collecting roller (604); the roller collecting motor (603) is arranged at the front end of the roller collecting support piece (6); the rope collecting roller (604) is rotatably connected inside the rope collecting roller supporting piece (6), and the front end of the rope collecting roller (604) is fixedly connected with a rotating shaft of the rope collecting roller motor (603).

6. The simplified crane for construction work as set forth in claim 1, wherein: receive rope guide assembly including: the gear transmission module (605), the guide screw rod (606) and the guide piece (607); the gear transmission module (605) is rotatably connected above the rope collecting roller (604), and a group of gears at the bottom of the gear transmission module (605) are fixedly connected to the outer side of the rope collecting roller (604); the guide screw (606) is concentrically and fixedly connected to the top end of the gear transmission module (605); the guide piece (607) is in transmission connection with the outer side of the guide screw rod (606).