CN211143676U - Lifting inner and outer frame of tower mast structure - Google Patents
Lifting inner and outer frame of tower mast structure Download PDFInfo
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- CN211143676U CN211143676U CN201921101206.8U CN201921101206U CN211143676U CN 211143676 U CN211143676 U CN 211143676U CN 201921101206 U CN201921101206 U CN 201921101206U CN 211143676 U CN211143676 U CN 211143676U
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Abstract
The utility model discloses an inside and outside shelf of tower mast structure lift, including interior support body, the outer support body, interior support body is including interior upper ring frame and interior lower ring frame, the outer support body is including outer upper ring frame and outer lower ring frame, be provided with a plurality of interior racks between interior upper ring frame and the interior lower ring frame, be provided with a plurality of outer racks between outer upper ring frame and the outer lower ring frame, the meshing is connected with the internal gear on every interior rack, internal gear and outer lower ring frame fixed connection, the meshing has the external gear on every outer rack, external gear and interior upper ring frame fixed connection, interior upper ring frame, all install the flexible oil pump of interior frame on the interior lower ring frame, outer upper ring frame, all install the flexible oil pump of exterior frame on the interior lower ring frame. The utility model discloses an inner frame body realizes climbing or moving down with the alternating motion of outer support body, can be fixed in the not co-altitude position of tower mast structure with lift operation platform according to the construction needs, and the constructor of being convenient for repairs the outside of tower mast structure, has improved work efficiency greatly, has saved manpower and materials.
Description
Technical Field
The utility model belongs to the technical field of construction and maintenance equipment, concretely relates to inside and outside shelf of tower mast structure lift.
Background
The tower mast structure refers to a structure with a larger height and a smaller cross section. Nowadays, tower mast structures are generally applied in the construction industry at home and abroad, are mostly arranged at the top of a super high building layer, and have extremely high aesthetic value. The tower mast structure with the steel structure is widely applied to the field of buildings due to light structure, attractive appearance and industrial production. In order to improve the decoration performance of the tower mast structure, a decorative material is required to be attached to the surface of the tower mast structure or an artistic construction is required to be additionally arranged on the tower mast structure, and the outer surface of the tower mast structure is required to be repaired irregularly due to the fact that the tower mast structure is exposed to the external environment for a long time and is eroded by the atmosphere, rain and snow.
The traditional scaffold building repair process is complex in steps and long in time consumption, and is not suitable for repairing a tower mast structure, so that a lifting mechanism is urgently needed at the present stage to drive a lifting operation platform to move up and down outside the tower mast structure, and the repair work efficiency is improved.
SUMMERY OF THE UTILITY MODEL
Problem to exist among the prior art, the utility model provides an inside and outside shelf of tower mast structure lift, the utility model discloses can climb or move down in the tower mast structure, and can be fixed in the not co-altitude position of tower mast structure, improve the efficiency of the work of repairing.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an inner and outer lifting frame of a tower mast structure, which comprises an inner frame body and an outer frame body, wherein the inner frame body is arranged at the inner side of the outer frame body, the inner frame body comprises an inner upper ring frame and an inner lower ring frame, the outer frame body comprises an outer upper ring frame and an outer lower ring frame, a plurality of inner racks are arranged between the inner upper ring frame and the inner lower ring frame, a plurality of outer racks are arranged between the outer upper ring frame and the outer lower ring frame, the inner racks and the outer racks are alternately arranged, each inner rack is engaged and connected with an inner gear, the inner gear is fixedly connected with the outer lower ring frame, each outer rack is engaged with an outer gear, the outer gears are fixedly connected with the inner upper ring frame, the inner gears and the outer gears are driven by a driving motor, the inner upper ring frame and the inner lower ring frame are both provided with an inner frame telescopic oil pump, and the outer upper ring frame and the outer lower ring frame are respectively provided with an outer frame telescopic oil pump.
As a preferred technical scheme, the inner frame telescopic oil pump is installed at the joint of the inner rack and the inner upper ring frame as well as the joint of the inner lower ring frame, and the outer frame telescopic oil pump is installed at the joint of the outer rack and the outer upper ring frame as well as the joint of the outer lower ring frame.
As a preferable technical scheme, a storage battery box is arranged at the joint of the inner upper ring frame and the inner rack and the joint of the outer lower ring frame and the outer rack.
As a preferable technical scheme, the distances between every two adjacent inner racks are equal, and the distances between every two adjacent outer racks are equal.
As a preferred technical scheme, an inner frame supporting column is installed between the inner upper ring frame and the inner lower ring frame, the inner frame supporting column and the inner rack are alternately arranged, an outer frame supporting column is installed between the outer upper ring frame and the outer lower ring frame, and the outer frame supporting column and the outer rack are alternately arranged.
As a preferred technical scheme, baffles are respectively arranged on two sides of the inner gear and two sides of the outer gear, the baffles on two sides of the inner gear are parallel to a plane where the inner gear is located, the baffles on two sides of the outer gear are parallel to a plane where the outer gear is located, and the driving shaft sequentially penetrates through the baffles.
As a preferable technical scheme, the inner frame telescopic oil pump and the outer frame telescopic oil pump have the same structure and comprise an oil pump main body, an electromagnet, a transmission mechanism and a guide mechanism,
the oil pump main body comprises an oil pump base and an output shaft, the oil pump base is fixed on the lifting auxiliary frame, the output shaft is connected with the electromagnet through the transmission mechanism,
the guide mechanism comprises a first guide plate, a second guide plate and a guide post, the first guide plate is arranged at one end of the oil pump base far away from the output shaft, the second guide plate is arranged at one end of the oil pump base connected with the output shaft, guide holes are respectively arranged on the first guide plate and the second guide plate, one end of the guide post sequentially penetrates through the guide holes on the first guide plate and the second guide plate and is fixed with the electromagnet, the guide post is parallel to the output shaft,
drive mechanism includes driving plate, crossing arm and linking arm, the driving plate is located the second deflector with between the electro-magnet and with the second deflector is parallel, output shaft fixed connection the driving plate, the plane at crossing arm place with the perpendicular and crossing central point fixed connection of driving plate the driving plate, four tip of crossing arm respectively with the one end of linking arm is articulated, four the other end of two linking arms in the linking arm with the second deflector is articulated, the other end of two other linking arms fixed with the electro-magnet is articulated.
According to a preferable technical scheme, the end face, far away from the oil pump main body, of the electromagnet is in a straight face shape, a circular arc shape or a folded face shape.
As a preferable technical scheme, the number of the cross arms is two, the two cross arms are arranged on two opposite sides of the transmission plate, and a connecting line of cross center points of the two cross arms penetrates through a central axis of the output shaft.
Preferably, the first guide plate and the second guide plate are respectively provided with two guide holes, and the two guide holes are symmetrically arranged along a straight line where the output shaft is located.
As a preferable technical scheme, the driving motor, the oil pump main body and the electromagnet are powered by a storage battery or an external power supply.
As a preferred technical scheme, the inner frame body, the outer frame body, the inner rack, the outer rack, the inner gear and the outer gear are made of steel materials.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an inner frame body realizes climbing or moving down with the alternating motion of outer frame body to the outside that the outer shelf was fixed in tower mast mechanism will go up and down through the flexible oil pump of inner frame, the flexible oil pump of outer frame, can be fixed in the not co-altitude position of tower mast structure with lift operation platform according to the construction needs, the constructor of being convenient for repairs the outside of tower mast structure, has improved work efficiency greatly, has saved manpower and materials.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the inner and outer lifting frames of the tower mast structure of the present invention.
Fig. 2 is a schematic structural view of the inner and outer frames of the tower mast structure at another angle.
Fig. 3 is a partial enlarged view of the inner and outer lifting frames of the tower mast structure of the present invention.
Fig. 4 is a schematic structural diagram of the telescopic oil pump (inner frame telescopic oil pump, outer frame telescopic oil pump) of the present invention.
Fig. 5 is a schematic structural view of the telescopic oil pump of the present invention at another angle.
Fig. 6 is a schematic structural view of a transmission mechanism in the telescopic oil pump of the present invention.
Fig. 7 is a schematic structural view of the transmission mechanism of the telescopic oil pump at another angle.
Fig. 8 is a simplified schematic diagram of the first working state of the inner and outer frames of the tower mast structure.
Fig. 9 is a simplified schematic diagram of the second working state of the inner and outer lifting frames of the tower mast structure of the present invention.
Wherein the reference numerals are specified as follows: the oil pump comprises an outer upper ring frame 1, an outer lower ring frame 2, an inner upper ring frame 3, an inner lower ring frame 4, an outer rack 5, an outer gear 6, an inner rack 7, an inner gear 8, an outer frame telescopic oil pump 9, an inner frame telescopic oil pump 10, a baffle plate 11, an oil pump base 12, an output shaft 13, a first guide plate 14, a second guide plate 15, a guide column 16, a transmission plate 17, an electromagnet 18, a cross arm 19, a connecting arm 20, a guide hole 21, a driving motor 22, a driving shaft 23, an outer frame supporting column 24 and an inner frame supporting column 25.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-3, the present embodiment provides an inner and outer lifting frame for a tower mast structure, which includes an inner frame body and an outer frame body, wherein the inner frame body is disposed inside the outer frame body, the inner frame body includes an inner upper ring frame 3 and an inner lower ring frame 4, the outer frame body includes an outer upper ring frame 1 and an outer lower ring frame 2, and the inner upper ring frame 3, the inner lower ring frame 4, the outer upper ring frame 1, and the outer lower ring frame 2 are regular octagons. Four inner racks 7 are arranged between the inner upper ring frame 3 and the inner lower ring frame 4, the four inner racks 7 are distributed at equal intervals, and the two ends of each inner rack 7 are respectively connected with the angular points of the inner upper ring frame 3 and the inner lower ring frame 4, so that the stability of the structure is improved. Four outer racks 5 are arranged between the outer upper ring frame 1 and the outer lower ring frame 2, the four outer racks 5 are distributed at equal intervals, and two ends of each outer rack 5 are respectively connected with angular points of the outer upper ring frame 1 and the outer lower ring frame 2. The inner racks 7 and the outer racks 5 are alternately arranged. The meshing is connected with internal gear 8 on every interior rack 7, internal gear 8 and outer 2 fixed connection of lower ring frame, the meshing has external gear 6 on every outer rack 5, external gear 6 and interior 3 fixed connection of upper ring frame, internal gear 8, external gear 6 is driven by driving motor 22, the both sides of internal gear 8, the both sides of external gear 6 are provided with baffle 11 respectively, the baffle 11 of internal gear 8 both sides is parallel with the plane at internal gear 8 place, the baffle 11 of external gear 6 both sides is parallel with the plane at external gear 6 place, baffle 11 is passed in proper order to drive shaft 23. The inner upper ring frame 3 and the inner lower ring frame 4 are both provided with inner frame telescopic oil pumps 10, and the outer upper ring frame 1 and the outer lower ring frame 2 are both provided with outer frame telescopic oil pumps 9. The inner frame telescopic oil pump 10 is arranged at the joint of the inner rack 7 and the inner upper ring frame 3 and the inner lower ring frame 4, and the outer frame telescopic oil pump 9 is arranged at the joint of the outer rack 5 and the outer upper ring frame 1 and the outer lower ring frame 2. And a storage battery box 25 is arranged at the joint of the inner upper ring frame 3 and the inner rack 7 and the joint of the outer lower ring frame 2 and the outer rack 5. The battery case 25 is used to supply power to the telescopic oil pumps (the inner frame telescopic oil pump 10 and the outer frame telescopic oil pump 9) and the drive motor 22.
In order to improve the stability of the whole structure, an inner frame supporting column 25 is arranged between the inner upper ring frame 3 and the inner lower ring frame 4, the inner frame supporting column 25 and the inner rack 7 are alternately arranged, an outer frame supporting column 24 is arranged between the outer upper ring frame 1 and the outer lower ring frame 2, and the outer frame supporting column 24 and the outer rack 5 are alternately arranged. The inner frame body, the outer frame body, the inner rack 7, the outer rack 5, the inner gear 8 and the outer gear 6 are made of steel materials.
As shown in fig. 4 to 5, the telescopic oil pump (inner frame telescopic oil pump 10, outer frame telescopic oil pump 9) includes an oil pump main body, an electromagnet 18, a transmission mechanism, and a guide mechanism.
Wherein, the oil pump main part includes oil pump base 12 and output shaft 13, and in the in-process of installation use, oil pump base 12 is fixed in on the inner frame body or the outer frame body, and output shaft 13 passes through drive mechanism and connects electro-magnet 18. The oil pump main body and the electromagnet 18 can be connected with a storage battery box 25 or can be connected with an external power supply according to requirements. The end face of the electromagnet 18 far away from the oil pump main body is in a folded surface shape (can also be designed into a straight surface shape and an arc surface shape), and the specific shape of the electromagnet is designed according to the shape of the tower mast structure, so that the end face of the electromagnet 18 is completely attached to the outer surface of the tower mast structure, and the stability of the whole structure is improved.
The guide mechanism comprises a first guide plate 14, a second guide plate 15 and a guide post 16, the first guide plate 14 is installed at one end, far away from the output shaft 13, of the oil pump base 12, the second guide plate 15 is installed at one end, connected with the output shaft 13, of the oil pump base 12, guide holes 21 are formed in the first guide plate 14 and the second guide plate 15 respectively, one end of the guide post 16 sequentially penetrates through the guide holes 21 in the first guide plate 14 and the second guide plate 15 and is fixed with the electromagnet 18, and the guide post 16 is parallel to the output shaft 13. The first guide plate 14 and the second guide plate 15 are respectively provided with two guide holes 21, and the two guide holes 21 are symmetrically arranged along a straight line where the output shaft 13 is located. The two guide posts 16 ensure that the motion track of the output shaft 13 is a straight line, and the output shaft 13 is prevented from shaking in the stretching process.
As shown in fig. 6 and 7, the transmission mechanism includes a transmission plate 17, a cross arm 19 and a connecting arm 20, the transmission plate 17 is located between the second guide plate 15 and the electromagnet 18 and is parallel to the second guide plate 15, the output shaft 13 is fixedly connected to the transmission plate 17, and the transmission plate 17 is provided with a guide hole 21 for the guide post 16 to pass through. The plane of the cross arm 19 is perpendicular to the transmission plate 17, the center point of the cross is fixedly connected with the transmission plate 17, four end portions of the cross arm 19 are respectively hinged with one end of a connecting arm 20, the other ends of two connecting arms 20 in the four connecting arms 20 are hinged with the second guide plate 15, and the other ends of the other two connecting arms 20 are fixedly hinged with the electromagnet 18. The two cross arms 19 are arranged in two, the two cross arms 19 are arranged on two opposite sides of the transmission plate 17, and a connecting line of cross center points of the two cross arms 19 penetrates through a central axis of the output shaft 13. When the output shaft 13 drives the electromagnet 18 to extend or retract, the two symmetrically arranged cross arms 19 play a role in buffering on one hand, and on the other hand, the electromagnet 18 is prevented from shaking in the movement process.
The plane of the cross arm 19 is parallel to the plane of the two guide posts 16, so that the output shaft 13 is positioned at the center of the cross arm 19 and the guide posts 16, and the movement stability of the output shaft 13 is improved.
Referring to fig. 1, 2, 8 and 9, the operation principle of the present embodiment will be further described with reference to an octagon-shaped tower mast structure (an octagon-shaped tower structure with a narrow top and a wide bottom) in the upper sea exhibition center. As shown in fig. 8, when the inner and outer frames need to climb up during the lifting of the tower mast structure of the present embodiment, the electromagnet 18 of the inner frame telescopic oil pump 10 is powered off, and the inner frame telescopic oil pump 10 is far away from the tower mast structure, the electromagnet 18 of the outer frame telescopic oil pump 9 is powered on and adsorbed on the outer wall of the tower mast structure, the inner gear 8 and the outer gear 6 are driven by the driving motor 22 to rotate, since the inner gear 8 is fixed with the outer lower ring frame 2, the position of the inner gear 8 does not move during the rotation process, the inner rack 7 moves up under the driving of the inner gear 8 until the inner gear 8 is located at the bottom of the inner rack 7, the outer gear 6 is located at the top of the outer rack 5, and the positional relationship between the inner rack 7 and the outer rack 5 is. Then, the driving motor 22 driving the inner gear 8 and the outer gear 6 to move stops working, the electromagnet of the outer frame telescopic oil pump 9 is powered off, the electromagnet of the outer frame telescopic oil pump 9, which is far away from the inner frame telescopic oil pump 10 of the tower mast structure, is powered on and is adsorbed on the outer wall of the tower mast structure, the inner gear 8 and the outer gear 6 rotate under the driving of the driving motor 22, the outer gear 6 is fixed with the inner upper ring frame 3, the position of the outer gear 6 does not move in the rotating process, the outer rack 5 moves upwards under the driving of the outer gear 6 until the outer gear 6 is positioned at the bottom of the outer rack 5, and the position relation between the outer rack 5 and the inner rack 7 is as shown in fig. 8, so that the climbing process of lifting the inner and outer. The same principle is adopted, and the downward moving process of the inner and outer racks during the lifting of the tower mast structure can be realized.
As shown in fig. 4 and 5, the telescopic oil pump operates as follows: the terminal surface shape of electro-magnet 18 is the face of book shape in this embodiment, and the contained angle that forms between the contained angle that forms and adjacent two sides on the tower body between the face of book is the same, and the terminal surface of electro-magnet 18 is towards the tower body, and when needs were fixed elevating system on the tower body, output shaft 13 stretched out for the terminal surface and the tower body contact of electro-magnet 18, electro-magnet 18 circular telegram makes electro-magnet 18 can adsorb on the tower body, and when needs removed elevating system, electro-magnet 18 outage, output shaft 13 withdrawal. Because the tower body is a structure with a narrow top and a wide bottom, and the electromagnet 18 is a folded surface and is matched with the shape of the tower body, when the electromagnet 18 is powered off in an unexpected situation, the electromagnet 18 cannot slide down along the tower body in a short time.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention can be made without departing from the spirit and scope of the present invention, and these modifications and improvements are within the spirit and scope of the present invention.
Claims (12)
1. A tower mast structure lifting inner and outer frame is characterized by comprising an inner frame body and an outer frame body, wherein the inner frame body is arranged on the inner side of the outer frame body, the inner frame body comprises an inner upper ring frame and an inner lower ring frame, the outer frame body comprises an outer upper ring frame and an outer lower ring frame, a plurality of inner racks are arranged between the inner upper ring frame and the inner lower ring frame, a plurality of outer racks are arranged between the outer upper ring frame and the outer lower ring frame, the inner racks and the outer racks are alternately arranged, each inner rack is engaged and connected with an inner gear, the inner gears are fixedly connected with the outer lower ring frame, each outer rack is engaged with an outer gear, the outer gears are fixedly connected with the inner upper ring frame, the inner gears and the outer gears are driven by a driving motor, inner frame telescopic oil pumps are arranged on the inner upper ring frame and the inner lower ring frame, and the outer upper ring frame and the outer lower ring frame are respectively provided with an outer frame telescopic oil pump.
2. The tower mast structure lifting inner and outer frames according to claim 1, wherein the inner frame oil pump is installed at the connection of the inner rack and the inner upper ring frame and the inner lower ring frame, and the outer frame oil pump is installed at the connection of the outer rack and the outer upper ring frame and the outer lower ring frame.
3. The tower mast structure lifting inner and outer frames according to claim 2, wherein a battery box is installed at the connection of the inner upper ring frame and the inner rack and at the connection of the outer lower ring frame and the outer rack.
4. A tower mast structure lifting inner and outer tower of claim 1, wherein the inner spline is equally spaced from each other and the outer spline is equally spaced from each other.
5. The tower mast structure lifting inner and outer frames according to claim 4, wherein inner frame support columns are installed between the inner upper ring frame and the inner lower ring frame, the inner frame support columns and the inner racks are alternately arranged, outer frame support columns are installed between the outer upper ring frame and the outer lower ring frame, and the outer frame support columns and the outer racks are alternately arranged.
6. The inner and outer elevating frames for a tower mast structure according to claim 1, wherein the inner gear and the outer gear are provided with blocking plates at both sides thereof, respectively, the blocking plates at both sides of the inner gear are parallel to a plane of the inner gear, the blocking plates at both sides of the outer gear are parallel to a plane of the outer gear, and a driving shaft of the driving motor sequentially passes through the blocking plates.
7. The tower mast structure lifting inner and outer frames of claim 1, wherein the inner frame telescopic oil pump and the outer frame telescopic oil pump have the same structure and comprise an oil pump body, an electromagnet, a transmission mechanism and a guide mechanism,
the oil pump main body comprises an oil pump base and an output shaft, the oil pump base is fixed on the lifting auxiliary frame, the output shaft is connected with the electromagnet through the transmission mechanism,
the guide mechanism comprises a first guide plate, a second guide plate and a guide post, the first guide plate is arranged at one end of the oil pump base far away from the output shaft, the second guide plate is arranged at one end of the oil pump base connected with the output shaft, guide holes are respectively arranged on the first guide plate and the second guide plate, one end of the guide post sequentially penetrates through the guide holes on the first guide plate and the second guide plate and is fixed with the electromagnet, the guide post is parallel to the output shaft,
drive mechanism includes driving plate, crossing arm and linking arm, the driving plate is located the second deflector with between the electro-magnet and with the second deflector is parallel, output shaft fixed connection the driving plate, the plane at crossing arm place with the perpendicular and crossing central point fixed connection of driving plate the driving plate, four tip of crossing arm respectively with the one end of linking arm is articulated, four the other end of two linking arms in the linking arm with the second deflector is articulated, the other end of two other linking arms fixed with the electro-magnet is articulated.
8. The inner and outer lifting frames for tower mast structure of claim 7, wherein the end surface of the electromagnet away from the main body of the oil pump is straight, circular or folded.
9. The tower mast structure lifting inner and outer frame of claim 7, wherein said cross arms are provided in two, two of said cross arms are provided on opposite sides of said drive plate, and a line connecting cross center points of said two cross arms passes through a central axis of said output shaft.
10. The inner and outer tower frames for lifting a tower mast structure according to claim 7, wherein the first and second guide plates are provided with two guide holes, respectively, and the two guide holes are symmetrically arranged along a line on which the output shaft is located.
11. The tower mast structure lifting inner and outer frames according to claim 7, wherein the driving motor, the oil pump body, the electromagnet are powered by a battery or an external power source.
12. The tower mast structure lifting inner and outer frames according to claim 1, wherein the inner frame, the outer frame, the inner rack, the outer rack, the inner gear and the outer gear are made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101206.8U CN211143676U (en) | 2019-07-15 | 2019-07-15 | Lifting inner and outer frame of tower mast structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101206.8U CN211143676U (en) | 2019-07-15 | 2019-07-15 | Lifting inner and outer frame of tower mast structure |
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| Publication Number | Publication Date |
|---|---|
| CN211143676U true CN211143676U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921101206.8U Active CN211143676U (en) | 2019-07-15 | 2019-07-15 | Lifting inner and outer frame of tower mast structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469097A (en) * | 2019-07-15 | 2019-11-19 | 上海市建筑装饰工程集团有限公司 | A kind of inside and outside shelf of tower mast structure lifting |
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2019
- 2019-07-15 CN CN201921101206.8U patent/CN211143676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469097A (en) * | 2019-07-15 | 2019-11-19 | 上海市建筑装饰工程集团有限公司 | A kind of inside and outside shelf of tower mast structure lifting |
| CN110469097B (en) * | 2019-07-15 | 2024-06-04 | 上海市建筑装饰工程集团有限公司 | Lifting inner and outer frame of tower mast structure |
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