Angle steel tower with a liftable construction platform

Abstract

The present invention provides an angle steel tower with a liftable construction platform, which belongs to the technical field of steel tower construction equipment. The present invention provides an angle steel tower with a liftable construction platform, comprising an angle steel tower body, several groups of climbing devices, and several construction platforms; the angle steel tower body is provided with a plurality of limit blocks arranged at intervals along the height direction; the back plate of the climbing device is provided with a mounting hook, which is hung on the limit block; the construction platform comprises a first load-bearing frame and a second load-bearing frame respectively provided on two climbing devices in the same group, and the first load-bearing frame and the second load-bearing frame are horizontally slidably connected. The present invention provides an angle steel tower with a liftable construction platform, which is connected to the limit climbing device by means of a limit block; the climbing device is connected to the construction platform to adapt to construction requirements of different heights; the first load-bearing frame and the second load-bearing frame of the construction platform slide horizontally, thereby adapting to the different height requirements of the angle steel tower body, avoiding the problem of replacing multiple sets of platforms.

Description

Technical Field

[0001] The invention belongs to the technical field of steel tower construction equipment, and in particular relates to an angle steel tower with a liftable construction platform. Background Art

[0002] During power construction, steel towers are often used for tension poles, corner poles, and terminal poles. They are an indispensable component of power line reconstruction. However, corner steel towers present shortcomings during daily operation and maintenance: the upper and lower rows of steel towers are 80 cm apart and perpendicular to each other. This makes the middle phase disconnector difficult to operate after installation. Currently, the disconnector can only be opened and closed with the aid of a ladder. If it's too low, the operation becomes impossible, and if it's too high, the safe distance cannot be achieved.

[0003] Existing lifting platforms are either composite retractable platforms or multiple lifting platforms for tower hoisting operations. Composite retractable platforms are expensive, complex in structure, difficult to operate, and prone to failure. Multiple platforms are also relatively complex to replace. Summary of the Invention

[0004] The purpose of the present invention is to provide an angle steel tower with a liftable construction platform, aiming to solve the problem of complex replacement of multiple sets of platforms.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide an angle steel tower with a liftable construction platform, comprising:

[0006] An angle steel tower body, wherein the angle steel tower body has a plurality of limit blocks spaced apart in the height direction;

[0007] A plurality of groups of climbing devices, each group of the climbing devices comprising two climbing devices spaced apart and arranged on two side frames on the same side of the angle steel tower body; a mounting hook is provided on the back plate of the climbing device, and the mounting hook is hung on the limit block to fix the climbing device;

[0008] Several construction platforms include a first load-bearing frame and a second load-bearing frame respectively arranged on two climbing devices in the same group. The first load-bearing frame and the second load-bearing frame are horizontally slidably connected. The first load-bearing frame and the second load-bearing frame move toward or oppositely to adapt to the distance between the two climbing devices.

[0009] In one possible implementation, the first supporting frame includes a first mounting seat connected to the climbing device and a plurality of first extension rods provided on the first mounting seat; the second supporting frame includes a second mounting seat connected to another climbing device and a plurality of second extension rods provided on the second mounting seat; the plurality of second extension rods and the plurality of first extension rods are arranged one by one in an staggered manner, and the second extension rods are slidably connected to the first extension rods.

[0010] In a possible implementation, sliding grooves are formed on both sides of the first extension rod, and both sides of the second extension rod are slidably connected to the sliding grooves.

[0011] In one possible implementation, the first extension rod is a hollow rod; a plurality of third extension rods are further provided on the second mounting seat, the third extension rods corresponding one-to-one to the first extension rod, and the free ends of the third extension rods extend into the first extension rod and are slidably connected to the first extension rod.

[0012] In a possible implementation, the cross-section of the third extension rod is I-shaped; a sliding portion extending inward is provided on the inner side wall of the first extension rod, and the sliding portion has a ball bearing that fits in the middle of the third extension rod.

[0013] In one possible implementation, the first mounting seat includes a main seat connected to the climbing device, a mounting frame parallel to the first extension rod, and an auxiliary seat connected to the mounting frame, and the upper end surface of the auxiliary seat is attached to the free ends of multiple first extension rods.

[0014] In one possible implementation, the climbing device includes an upper shell, a lower shell, and a telescopic assembly connecting the upper shell and the lower shell. The back plates of the upper shell and the lower shell are provided with mounting hooks, and the mounting hooks are hooked on the limit block to fix the climbing device; the first mounting seat and the second mounting seat are both installed on the lower shell.

[0015] In one possible implementation, a guide rod is provided at the upper end of the lower shell, and a first abutment block protruding outward is provided at the end of the guide rod; a guide groove is provided at the lower part of the upper shell, and the guide groove is used to accommodate the guide rod, and a second abutment block extending toward the inside of the guide groove is provided at the end of the guide groove, and the second abutment block is used to limit the first abutment block.

[0016] In one possible implementation, the first carrier and the second carrier are both rotatably connected to the lower shell, and the ends of the first carrier and the second carrier are each provided with a lifting hook, and the lifting hook is connected to the corresponding upper shell by means of a steel wire rope; a self-locking device is provided on the steel wire rope.

[0017] In a possible implementation, a fastening plate is provided on the side walls of the upper shell and the lower shell, the fastening plate is provided with a bolt hole, and the fastening plate is connected to the angle steel tower body by means of bolts.

[0018] The beneficial effects of the angle steel tower with a liftable construction platform provided by the present invention are as follows: compared with the prior art, the angle steel tower body is provided with several groups of climbing devices, each group including two climbing devices symmetrically arranged on two side frames on one side of the angle steel tower body, and the two climbing devices in a group are connected to the two ends of the same construction platform. The two climbing devices rise or fall simultaneously, driving the construction platform to rise or fall; by providing a limit block on the angle steel tower body, the limit block is used to connect and limit the climbing device; the climbing device is connected to the construction platform and drives the construction platform to rise or fall to adapt to construction requirements of different heights; when rising or falling, the first and second bearing frames of the construction platform slide horizontally to adapt to different distances of the climbing device, thereby adapting to the different height requirements of the angle steel tower body, avoiding the problem of replacing multiple sets of platforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of an angle steel tower provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the connection between the climbing device and the construction platform provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the connection between the climbing device and the first mounting base provided in an embodiment of the present invention;

[0023] Figure 4 A cross-sectional view of a climbing device provided in an embodiment of the present invention;

[0024] Figure 5 A top view of a construction platform provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the connection between the first extension rod and the third extension rod provided in an embodiment of the present invention;

[0026] Figure 7 A schematic cross-sectional view of a first extension rod provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 10. Angle steel tower body; 11. Limit block;

[0029] 12. Bolt mounting plate; 20. Climbing device;

[0030] 20a, upper housing; 20b, lower housing;

[0031] 21. Mounting hook; 22. Limiting plate;

[0032] 23. Telescopic assembly; 24. Guide rod;

[0033] 25. First support plate; 26. Ear plate;

[0034] 27. First mounting base; 28. Steel wire rope;

[0035] 29. First extension rod; 30. Second mounting base;

[0036] 31. Third extension rod; 32. Second support plate;

[0037] 33. Second extension rod; 40. Self-locking device;

[0038] 41. Fastening plate; 50. Ball bearing. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] Please refer to Figures 1 to 7 , a specific embodiment of an angle steel tower with a liftable construction platform provided by the present invention is now described, comprising: an angle steel tower body 10, several groups of climbing devices 20, and several construction platforms; the angle steel tower body 10 is provided with a plurality of limit blocks 11 arranged at intervals along the height direction; each group of climbing devices 20 includes two climbing devices 20 arranged at intervals on two side frames on the same side of the angle steel tower body 10; a mounting hook 21 is provided on the back plate of the climbing device 20, and the mounting hook 21 is hung on the limit block 11 to fix the climbing device 20; the construction platform comprises a first load-bearing frame and a second load-bearing frame respectively arranged on the two climbing devices 20 of the same group, the first load-bearing frame and the second load-bearing frame are horizontally slidably connected, and the first load-bearing frame and the second load-bearing frame move toward or oppositely to adapt to the distance between the two climbing devices 20.

[0041] The present invention provides an angle steel tower with a liftable construction platform. Compared with the prior art, the angle steel tower body 10 is provided with several groups of climbing devices 20, each group including two climbing devices 20 symmetrically arranged on two side frames on one side of the angle steel tower body 10, and the two climbing devices 20 in a group are connected to the two ends of the same construction platform.

[0042] The two climbing devices 20 rise or fall simultaneously, driving the construction platform to rise or fall.

[0043] The front end of the climbing device 20 is connected to the construction platform, the back plate of the climbing device 20 is close to the side frame of the angle steel tower body 10, and a mounting hook 21 is provided on the back plate of the climbing device 20. The mounting hook 21 is hung on the limit block 11 to fix the climbing device 20 on the angle steel tower body 10.

[0044] Because the spacing between the two side frames on the same side of the angle steel tower body 10 varies, the spacing between the two climbing devices 20 in the same group gradually decreases from bottom to top. The construction platform is connected to two climbing devices 20 at each end, and the spacing between them gradually changes as the two climbing devices 20 move. Therefore, the first and second support frames of the construction platform slide horizontally, allowing the construction platform's length to accommodate the different distances between the two climbing devices 20.

[0045] The present invention provides an angle steel tower with a liftable construction platform, which is equipped with a limit block 11 on the angle steel tower body 10, and is connected and limited by the limit block 11 to a climbing device 20; the climbing device 20 is connected to the construction platform and drives the construction platform to rise or fall to adapt to construction requirements at different heights; when rising or falling, the first load-bearing frame and the second load-bearing frame of the construction platform slide horizontally to adapt to different distances of the climbing device 20, thereby adapting to different height requirements of the angle steel tower body 10, avoiding the problem of replacing multiple sets of platforms.

[0046] As a specific embodiment of the angle steel tower with a liftable construction platform provided by the present invention, please refer to Figure 5 and Figure 6 The first supporting frame includes a first mounting seat 27 connected to the climbing device 20 and a plurality of first extension rods 29 provided on the first mounting seat 27; the second supporting frame includes a second mounting seat 30 connected to another climbing device 20 and a plurality of second extension rods 33 provided on the second mounting seat 30; the plurality of second extension rods 33 and the plurality of first extension rods 29 are arranged one by one in an staggered manner, and the second extension rods 33 are slidably connected to the first extension rods 29.

[0047] The two climbing devices 20 located on the same side of the angle steel tower body 10 are respectively a first climbing device 20 and a second climbing device 20 .

[0048] The first supporting frame and the second supporting frame are slidably connected. The first mounting seat 27 of the first supporting frame is mounted on the first climbing device 20 , and the second mounting seat 30 of the second supporting frame is mounted on the second climbing device 20 .

[0049] The first extension rod 29 connected to the first mounting seat 27 and the second extension rod 33 connected to the second mounting seat 30 are arranged opposite to each other and are interlaced and slidably connected to each other.

[0050] The plurality of first extension rods 29 are arranged at equal intervals, and the interval between two adjacent first extension rods 29 is consistent with the width of the second extension rod 33 .

[0051] Sliding grooves are defined on both sides of the first extension rod 29, and the second extension rod 33 is slidably connected to the sliding grooves on both sides. The sliding grooves are rectangular in cross section, and the second extension rod 33 has outwardly protruding sliding connection portions on both sides. The sliding connection portions are located within the sliding grooves and slidably connected to the inner sidewalls of the sliding grooves.

[0052] As a specific embodiment of the angle steel tower with a liftable construction platform provided by the present invention, please refer to Figure 5 , the first extension rod 29 is a hollow rod; the second mounting seat 30 is also provided with a plurality of third extension rods 31, the third extension rods 31 and the first extension rod 29 correspond one to one, and the free end of the third extension rod 31 extends into the first extension rod 29 and is slidably connected to the first extension rod 29.

[0053] A plurality of third extension rods 31 are also provided on the second mounting base 30. The third extension rods 31 are arranged alternately with the second extension rods 33 and are parallel to the second extension rods 33. The first extension rod 29 is a hollow rod. The third extension rods 31 extend from the end of the first extension rod 29 into the first extension rod 29 and slide along the length of the first extension rod 29.

[0054] Specifically, the cross section of the third extension rod 31 is I-shaped. A sliding portion extending inward is provided on the inner side wall of the first extension rod 29 . The sliding portion has a ball bearing fitted in the middle of the third extension rod 31 .

[0055] like Figure 6 As shown, the cross section of the third extension rod 31 is I-shaped, and inwardly recessed connecting portions are provided on both sides of the third extension rod 31. Inwardly protruding sliding portions are provided on both sides of the inner cavity of the first extension rod 29, and the sliding portions and the connecting portions fit together.

[0056] A plurality of balls are installed on the inner side of the sliding part. The balls abut against the connecting part and are used to reduce the friction between the connecting part and the sliding part.

[0057] As a specific embodiment of the angle steel tower with a liftable construction platform provided by the present invention, please refer to Figure 3 The first mounting seat 27 includes a main seat connected to the climbing device 20, a mounting frame parallel to the first extension rod 29, and an auxiliary seat connected to the mounting frame. The upper end surface of the auxiliary seat is attached to the free ends of multiple first extension rods 29.

[0058] Specifically, the main seat is mounted on the climbing device 20, a mounting frame is extended from one side of the main seat, an auxiliary seat is provided on the mounting frame, and the auxiliary seat is connected to the free end of the first extension rod 29. The main seat and the auxiliary seat cooperate to support the first extension rod 29.

[0059] The second extension rod 33 and the third extension rod 31 are both arranged on the second mounting seat 30. The free ends of the second extension rod 33 and the third extension rod 31 are both connected to the first extension rod 29. The second extension rod 33 and the third extension rod 31 are both maintained in a horizontal state by the first extension rod 29.

[0060] As a specific embodiment of the angle steel tower with a liftable construction platform provided by the present invention, please refer to Figure 4 The climbing device 20 includes an upper shell 20a, a lower shell 20b and a telescopic assembly 23 connecting the upper shell 20a and the lower shell 20b. The back plates of the upper shell 20a and the lower shell 20b are both provided with mounting hooks 21, and the mounting hooks 21 are hooked on the limit block 11 to fix the climbing device 20; the first mounting seat 27 and the second mounting seat 30 are both installed on the lower shell 20b.

[0061] At least two mounting hooks 21 are provided on the back plates of the upper shell 20 a and the lower shell 20 b , and the mounting hooks 21 are connected to the limiting blocks 11 on the angle steel tower body 10 .

[0062] The upper and lower housings 20a and 20b are connected by a telescopic assembly 23. When the telescopic assembly 23 extends, the lower housing 20b remains stationary due to the action of the mounting hook 21 and the stop block 11, while the upper housing 20a moves upward under the action of the telescopic assembly 23 until the telescopic assembly 23 reaches its longest position. The telescopic assembly 23 then retracts, and after the mounting hook 21 on the back panel of the upper housing 20a hooks onto the stop block 11, the upper housing 20a remains stationary, while the lower housing 20b moves upward under the action of the telescopic assembly 23 until the telescopic assembly 23 retracts to its shortest position. At this point, the climbing device 20 completes one upward climb.

[0063] Optionally, the mounting hook 21 is hinged on the back plate, and a limit plate 22 is provided above the mounting hook 21. The limit plate 22 is fixedly mounted on the back plate and limits the rotation angle of the mounting hook 21. Under the action of the limit plate 22, the mounting hook 21 can only rotate downward.

[0064] An elastic member is further provided between the mounting hook 21 and the back plate, and is located below the limit plate 22. When the climbing device 20 moves upward, when the mounting hook 21 passes the limit block 11, the mounting hook 21 is blocked by the limit block 11 and rotates downward. When the mounting hook 21 rotates, the mounting hook 21 compresses the spring. When the mounting hook 21 passes the limit block 11, the spring drives the mounting hook 21 to return to the open state. At this time, the mounting hook 21 is located above the limit block 11. When the telescopic assembly 23 is shortened downward, the mounting hook 21 abuts against the upper end of the limit block 11.

[0065] When the climbing device 20 moves downward, the spring can be controlled to be in a compressed state, and with the help of the telescopic component 23 and the state of the spring, the connection state of the upper shell 20a and the lower shell 20b and the limit block 11 is switched to complete the downward movement of the climbing device 20.

[0066] First, compress the spring on the mounting hook 21 on the lower shell 20b to drive the telescopic assembly 23 to extend, then open the spring on the lower shell 20b, and continue to extend the telescopic assembly 23 until the mounting hook 21 on the lower shell 20b is connected to the limit block 11; then retract the spring on the upper shell 20a, and then drive the telescopic assembly 23 to shorten, and the upper shell 20a moves downward; then release the spring on the upper shell 20a, and shorten the telescopic assembly 23 until the mounting hook 21 on the upper shell 20a is connected to the limit block 11.

[0067] Optionally, the angle between the upper end surface of the limiting block 11 and the outer side wall of the side frame of the angle steel tower is an acute angle.

[0068] As a specific embodiment of the angle steel tower with a liftable construction platform provided by the present invention, please refer to Figure 4 A guide rod 24 is provided at the upper end of the lower shell 20b, and a first abutment block protruding outward is provided at the end of the guide rod 24; a guide groove is provided at the lower part of the upper shell 20a, and the guide groove is used to accommodate the guide rod 24 and the end of the guide groove is provided with a second abutment block extending toward the inside of the guide groove, and the second abutment block is used to limit the first abutment block.

[0069] The upper end of the lower shell 20b is provided with a guide rod 24, which extends into the guide groove of the upper shell 20a and slides along the length direction of the guide groove. During the telescopic assembly 23 telescopic process, the guide rod 24 slides along the length direction of the guide groove.

[0070] A first abutment block and a second abutment block are respectively provided at the end of the guide rod 24 and the outlet end of the guide groove. During sliding, when the first abutment block is in contact with the second abutment block, the distance between the upper shell 20a and the lower shell 20b is kept at the maximum, and the telescopic assembly 23 is in the longest state.

[0071] Optionally, the telescopic component 23 is a cylinder.

[0072] As a specific embodiment of the angle steel tower with a liftable construction platform provided by the present invention, please refer to Figure 4 The first carrier and the second carrier are both rotatably connected to the lower shell 20b. The ends of the first carrier and the second carrier are provided with lifting hooks, which are connected to the corresponding upper shell 20a by means of a wire rope 28; a self-locking device 40 is provided on the wire rope 28.

[0073] Specifically, the lower housing 20b is fixedly connected to a first mounting seat 27 or a second mounting seat 30. The lower housings 20b of the first and second climbing devices 20 and 20 are both provided with lugs 26. The first mounting seat 27 is hingedly connected to the lugs 26 of the first climbing device 20, and the second mounting seat 30 is hingedly connected to the lugs 26 of the second climbing device 20.

[0074] Optionally, a support plate is provided at the lower end of the lower shell 20 b , and the support plate is located below the ear plate 26 .

[0075] A first supporting plate 25 is installed on the first climbing device 20 , and a second supporting plate 32 is installed on the second climbing device 20 . The first supporting plate 25 and the second supporting plate 32 are used to support the first mounting seat 27 and the second mounting seat 30 respectively.

[0076] The first mounting seat 27 or the second mounting seat 30 rotates downward until its lower end surface is respectively in contact with the upper end surface of the first supporting plate 25 and the second supporting plate 32 .

[0077] A fastening plate 41 is provided on the side walls of the upper shell 20a and the lower shell 20b. The fastening plate 41 is provided with bolt holes. The fastening plate 41 is connected to the angle steel tower body 10 by means of bolts.

[0078] Optionally, the self-locking device 40 is a JHFZQ anti-fall self-locking device 40.

[0079] A bolt mounting plate 12 is provided on one side of the angle steel tower body 10 , and the fastening plate 41 is attached to the bolt mounting plate 12 and connected to the bolt mounting plate 12 by means of bolts, so as to improve the connection strength between the climbing device 20 and the angle steel tower body 10 .

[0080] During construction, when the climbing device 20 climbs to the desired construction position, it stops moving and the fastening plate 41 and the bolt mounting plate 12 are fixed by bolts.

[0081] After the construction is completed, the bolts are first removed, and then the climbing device 20 is driven to rise or fall.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An angle steel tower with a liftable construction platform, characterized in that: include: An angle steel tower body, wherein the angle steel tower body has a plurality of limit blocks spaced apart in the height direction; A plurality of groups of climbing devices, each group of the climbing devices comprising two climbing devices spaced apart and arranged on two side frames on the same side of the angle steel tower body; a mounting hook is provided on the back plate of the climbing device, and the mounting hook is hung on the limit block to fix the climbing device; A plurality of construction platforms, each comprising a first load-bearing frame and a second load-bearing frame respectively provided on two climbing devices in the same group, the first load-bearing frame and the second load-bearing frame being horizontally slidably connected, and the first load-bearing frame and the second load-bearing frame moving toward or away from each other to adapt to the spacing between the two climbing devices; Due to the different spacing between the two side frames on the same side of the angle steel tower body, the spacing between the two climbing devices in the same group gradually decreases from bottom to top; and the two ends of the construction platform are respectively connected to the two climbing devices. As the two climbing devices move, the spacing between the two climbing devices gradually changes; therefore, the first load-bearing frame and the second load-bearing frame of the construction platform slide horizontally, so that the length of the construction platform can adapt to the two climbing devices at different distances.

2. The angle steel tower with a liftable construction platform according to claim 1, characterized in that: The first supporting frame includes a first mounting seat connected to the climbing device and a plurality of first extension rods provided on the first mounting seat; the second supporting frame includes a second mounting seat connected to another climbing device and a plurality of second extension rods provided on the second mounting seat; The plurality of second extension rods and the plurality of first extension rods are staggered and arranged one by one, and the second extension rods are slidably connected to the first extension rods.

3. The angle steel tower with a liftable construction platform as claimed in claim 2, characterized in that: Both sides of the first extension rod are provided with sliding grooves, and both sides of the second extension rod are slidably connected to the sliding grooves.

4. The angle steel tower with a liftable construction platform as claimed in claim 3, characterized in that: The first extension rod is a hollow rod; a plurality of third extension rods are further provided on the second mounting seat, the third extension rods corresponding to the first extension rods one by one, and the free ends of the third extension rods extend into the first extension rod and are slidably connected to the first extension rod.

5. The angle steel tower with a liftable construction platform as claimed in claim 4, characterized in that: The cross section of the third extension rod is I-shaped; a sliding portion extending inward is provided on the inner side wall of the first extension rod, and the sliding portion has a ball bearing fitted in the middle of the third extension rod.

6. The angle steel tower with a liftable construction platform as claimed in claim 2, characterized in that: The first mounting seat includes a main seat connected to the climbing device, a mounting frame parallel to the first extension rod, and an auxiliary seat connected to the mounting frame, and the upper end surface of the auxiliary seat is attached to the free ends of multiple first extension rods.

7. The angle steel tower with a liftable construction platform as claimed in claim 2, characterized in that: The climbing device includes an upper shell, a lower shell and a telescopic assembly connecting the upper shell and the lower shell. The back plates of the upper shell and the lower shell are provided with mounting hooks, and the mounting hooks are hooked on the limit blocks to fix the climbing device; the first mounting seat and the second mounting seat are both installed on the lower shell.

8. The angle steel tower with a liftable construction platform as claimed in claim 7, characterized in that: A guide rod is provided at the upper end of the lower shell, and a first abutment block protruding outward is provided at the end of the guide rod; a guide groove is provided at the lower part of the upper shell, and the guide groove is used to accommodate the guide rod, and a second abutment block extending toward the inner side of the guide groove is provided at the end of the guide groove, and the second abutment block is used to limit the first abutment block.

9. The angle steel tower with a liftable construction platform according to claim 7, characterized in that: The first carrier and the second carrier are both rotatably connected to the lower shell, and the ends of the first carrier and the second carrier are each provided with a lifting hook, and the lifting hook is connected to the corresponding upper shell by means of a steel wire rope; a self-locking device is provided on the steel wire rope.

10. The angle steel tower with a liftable construction platform according to claim 7, characterized in that: The side walls of the upper shell and the lower shell are both provided with fastening plates, the fastening plates are provided with bolt holes, and the fastening plates are connected to the angle steel tower body by means of bolts.

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