An angle steel tower with anti-fall function

Abstract

The present invention discloses an angle steel tower with an anti-fall function, which belongs to the technical field of angle steel towers and includes an angle steel tower body, a high-protection climbing ladder is radially welded and fixed to the outer side wall of the angle steel tower body, and a limiting slide rail is welded and fixed to one side wall of the high-protection climbing ladder, and the limiting slide rail is provided with a first movable groove and a second movable groove in sequence from the inside to the outside, the interior of the first movable groove is provided with an anti-fall mechanism that can self-lock with low delay, the interior of the second movable groove is provided with a plurality of shielding mechanisms for shielding and protecting the anti-fall mechanism, and the bottom of the limiting slide rail is provided with a protective mechanism for protecting the idle anti-fall mechanism. The present invention has a low locking delay through the provision of the limiting slide rail, the anti-fall mechanism, the limiting assembly, and the self-locking assembly, which reduces the risk of falling impact and improves the efficiency and safety of climbing; the provision of the shielding mechanism and the protective mechanism, the cooperation of the two mechanisms makes the system suitable for all-weather environments and improves the work efficiency of the operator.

Description

Technical Field

[0001] The invention belongs to the technical field of angle steel towers, and in particular relates to an angle steel tower with an anti-falling function. Background Art

[0002] With the rapid development of social economy, the coverage rate of electric power communication is getting higher and higher. In the construction of modern communication and radio and television signal transmission tower projects, no matter the user chooses a ground-level or rooftop tower, it plays the role of raising the communication antenna and increasing the service radius of the communication or television transmission signal. The steel tower is an important communication, lightning protection and decorative facility. The electric power communication equipment can be constructed and installed through the angle steel tower.

[0003] Since the angle steel tower is tens of meters high, workers need to climb to the top of the angle steel tower when inspecting and repairing it. Therefore, certain anti-fall protection measures need to be taken for the workers. Existing angle steel towers are usually equipped with anti-fall structures to protect the workers.

[0004] The existing anti-fall structures of angle steel towers include ladder systems, guide rail protection structures, etc., but their structures have defects when used. For example: the ladder system requires workers to manually unlock the latch, which is cumbersome to operate during the climbing process and requires distraction, posing a safety hazard; when the guide rail protection structure faces rain and ice and snow in low temperature environments, accumulated ice and snow may block the guide rails, pulleys or moving parts of the self-locking device, causing jamming, the slider may not be able to slide normally due to ice, and the mechanical parts of the self-locking device may be deformed due to low temperature and cannot be triggered, resulting in failure of the anti-fall system. In order to solve the above problems, a kind of angle steel tower with anti-fall function is needed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an angle steel tower with an anti-falling function.

[0006] The technical solution adopted to solve the above technical problems is: an angle steel tower with an anti-fall function, comprising an angle steel tower body, a high-protection climbing ladder is radially welded and fixed to the outer wall of the angle steel tower body, a plurality of retaining rings are vertically welded and fixed to the outer wall of the high-protection climbing ladder at equal intervals, and the outer walls of the retaining rings are all covered with protective pads, a mounting seat is provided at the bottom end of the angle steel tower body, and a limited position slide rail is welded and fixed to one side wall of the high-protection climbing ladder;

[0007] The limiting slide rail is provided with a first movable groove and a second movable groove in sequence from the inside to the outside. The interior of the first movable groove is provided with an anti-fall mechanism that can self-lock with low delay. The interior of the second movable groove is provided with a plurality of shielding mechanisms for shielding and protecting the anti-fall mechanism. The bottom of the limiting slide rail is provided with a protective mechanism for protecting the idle anti-fall mechanism.

[0008] Furthermore, the anti-fall mechanism includes a limiting slide groove, limiting teeth, and a movable frame. The limiting slide groove is radially opened on the inner wall of the rear side of the first movable groove, and several limiting teeth are symmetrically opened on the inner walls on both sides of the first movable groove. The movable frame is located in the first movable groove, and the rear wall of the movable frame is integrally formed with a limiting slider. The outer wall of the limiting slider is slidably connected to the inner wall of the limiting slide groove. The interior of the movable frame is provided with a limiting component that locks with the limiting teeth. The front side of the limiting component is connected to a self-locking component that drives the limiting component to automatically lock. The rear inner wall of the movable frame is welded and fixed with a baffle that limits the self-locking component.

[0009] Through the above technical solution, when the operator climbs the high-protection climbing ladder, the limit slider of the mobile frame slides along the limit slide groove, thereby driving the limit component and the self-locking component to move synchronously and smoothly with the operator. When the operator falls accidentally, the self-locking component is quickly mobilized to lock the limit component, and the limit component cooperates with the limit teeth to engage and limit, achieving low delay and fast locking, and reducing the risk of falling impact.

[0010] Furthermore, a rotation groove that rotates with the self-locking component is opened on the front side of the mobile frame, and a guide shell corresponding to the position of the rotation groove is welded and fixed to the front wall of the mobile frame. The upper and lower ends of the guide shell are provided with guide blades that cooperate with the opening and closing of the shielding mechanism. The front wall of the guide shell is connected to a storage box, and the self-locking component is partially stored in the guide shell and the storage box.

[0011] Through the above technical solution, when the mobile frame moves, the guide blade arranged on the guide shell guides the shielding mechanism to open and close on the one hand, and on the other hand, when the shielding mechanism is frozen due to environmental influences, the moving guide blade breaks the ice on the shielding mechanism to ensure the normal operation of the anti-fall mechanism. It is suitable for all-weather environments and improves the efficiency of operators.

[0012] Furthermore, the shielding mechanism includes symmetrically arranged shielding plates, the side walls of the shielding plates are provided with guard edges, the side walls of the shielding plates on both sides are slidingly connected to the inner side walls of the second movable grooves on both sides respectively, and a first spring is fixedly connected between the opposite back surfaces of the two shielding plates and the inner side walls of the second movable grooves, and the upper and lower diagonals of the opposite surfaces of the shielding plates on both sides are fixedly set as chamfers.

[0013] With this technical solution, when idle, the two shielding plates merge to seal the limiting slide rail, preventing rain, dust, and other debris from entering the second movable groove and potentially causing corrosion or jamming of the anti-fall mechanism. This ensures smooth operation of the anti-fall mechanism and further improves the reliability of the anti-fall system. When the anti-fall mechanism is triggered, the guide blades push the shielding plates apart, exposing the anti-fall path. The chamfered edges of the shielding plates facilitate the opening and closing of the shielding plates by the guide housing, reducing the risk of operational jamming.

[0014] Furthermore, the protective mechanism includes a guide rail and a protective shell. The guide rail is symmetrically fixed on the left and right side walls of the limiting slide rail. A first sliding groove is opened on the inner walls of both sides of the protective shell. The inner wall of the first sliding groove is slidably connected to the outer wall of the guide rail. A handle is fixed to the front wall of the protective shell.

[0015] Through the above technical solution, when the limit assembly and the self-locking assembly are located at the bottom, the protective shell surrounds and protects them, preventing the limit assembly and the self-locking assembly from being exposed to the air for a long time, causing foreign objects to interfere with them, further improving the stability of the anti-fall mechanism operation, reducing maintenance frequency, and increasing the service life of the structure.

[0016] Furthermore, the limit assembly includes symmetrically arranged limit plates, the outer side walls of the limit plates are in sliding contact with the inner side walls of the movable frame, the side of the limit plates close to the limit teeth are provided with locking teeth, the opposite surfaces of the limit plates on both sides are symmetrically provided with guide slopes, the surfaces of the guide slopes are fixed with limiting protrusions, the upper and lower ends of the limit plates are welded and fixed with connecting plates, and a telescopic rod and a second spring are fixedly installed between the two connecting plates at the same end.

[0017] Through the above technical solution, when the movable frame moves upward or downward, the limiting teeth squeeze the two limiting plates, the symmetrical limiting plates are elastically reset by the telescopic rod and the second spring, the locking teeth engage with the limiting teeth, and the movable frame is pre-locked, providing positioning conditions for rapid response to the self-locking component drive and reducing the locking delay.

[0018] The top end face of said sliding panel also is provided with an interlock plate, and the interlock plate is fixed with a backing pin on the interlock plate, and the interlock plate is fixed with a backing pin on the interlock plate, and the interlock plate is fixed with a third spring which is fixed to the interlock plate of said sliding panel.

[0019] Through the above technical solution, when the operator climbs up the high-protection climbing ladder, the baffle blocks and limits the pressure block. When the operator falls accidentally, the slide bar is driven to slide downward, pressing one end of the movable bar, and the other end of the movable bar is driven upward with the rotating groove as the fulcrum. The pressure block is driven to slide upward through the movable hole and the pillar until the pressure inclined surface is squeezed and fitted to the guide inclined surface, and the limit plates on both sides can be limited to prevent movement. At this time, the anti-fall function can be completed, and the double engagement of the limiting teeth and the locking teeth can ensure the locking reliability. No unnecessary operations are required during climbing, thereby improving the efficiency and safety of climbing.

[0020] Furthermore, the spring coefficient of the third spring is smaller than the spring coefficients of the first spring and the second spring, and the outer side walls of the first spring, the second spring and the third spring are all covered with a rubber sleeve.

[0021] This technical solution reduces the third spring's coefficient. Under the same force, the third spring is more easily compressed or stretched, triggering it first and activating the self-locking mechanism more quickly in the event of a fall. The rubber sleeve isolates metal contact, adapting to harsh environments and preventing corrosion.

[0022] The beneficial effects of the present invention are as follows:

[0023] (1) Through the set limit rails, anti-fall mechanisms, limit components, and self-locking components, when the operator climbs the high-protection climbing ladder, the limit components and self-locking components are driven to move synchronously and smoothly with the operator. The limit components pre-lock the mobile frame. When the operator falls accidentally, the self-locking components are automatically mobilized under the influence of gravity to lock the limit components. The limit components and the limit teeth cooperate to engage and limit, achieving low delay and fast locking, reducing the risk of falling impact, and no unnecessary operations are required during climbing, thereby improving climbing efficiency and safety;

[0024] (2) Through the setting of the shielding mechanism and the protective mechanism, when in idle state, the shielding mechanism closes the limit slide rail to prevent rain, dust, etc. from entering the limit slide rail and causing corrosion, jamming, etc. of the fall mechanism, thereby ensuring the smooth operation of the anti-fall mechanism. The protective mechanism protects the limit components and self-locking components to prevent foreign objects from interfering with them, further improving the stability of the anti-fall mechanism and reducing the maintenance frequency. The cooperation of the two mechanisms makes the system suitable for all-weather environments and improves the work efficiency of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of an angle steel tower with a fall prevention function according to the present invention;

[0026] Figure 2 It is an enlarged view of point A of the present invention;

[0027] Figure 3This is a structural diagram of a protective mechanism of an angle steel tower with an anti-falling function according to the present invention;

[0028] Figure 4 This is a partial structural diagram of a shielding mechanism of an angle steel tower with an anti-falling function according to the present invention;

[0029] Figure 5 This is a partial three-dimensional diagram of a placement mechanism of an angle steel tower with an anti-falling function according to the present invention;

[0030] Figure 6 This is a three-dimensional diagram of a limiting component of an angle steel tower with an anti-falling function according to the present invention;

[0031] Figure 7 This is a structural diagram of a self-locking component of an angle steel tower with an anti-fall function according to the present invention;

[0032] Figure 8 This is a partial structure of the anti-fall mechanism of an angle steel tower with an anti-fall function. Figure 1 ;

[0033] Figure 9 This is a partial structure of the anti-fall mechanism of an angle steel tower with an anti-fall function. Figure 2 .

[0034] Figure 1: 1. Angle steel tower body; 2. High protection climbing ladder; 3. Mounting seat; 4. Limiting slide rail; 5. Anti-fall mechanism; 6. Shielding mechanism; 7. Protection mechanism; 8. Limiting assembly; 9. Self-locking assembly; 201. Retaining ring; 202. Protection pad; 401. First movable groove; 402. Second movable groove; 501. Limiting slide groove; 502. Limiting teeth; 503. Moving frame; 5031. Limiting slider; 5032. Rotating groove; 5033. Baffle; 504. Guide housing; 5041. Guide blade; 505. Storage box; 601. Shielding plate; 6011. Side rib; 6012. Chamfer; 602, first spring; 701, guide rail; 702, protective shell; 703, first slide groove; 704, handle; 801, limit plate; 8011, locking tooth; 8012, guide slope; 8013, limit protrusion; 802, connecting plate; 803, telescopic rod; 804, second spring; 901, pressure block; 9011, pressure slope; 9012, second slide groove; 9013, mounting groove; 9014, pillar; 902, movable rod; 9021, movable hole; 903, slide rod; 904, fixing ring; 905, top plate; 906, third spring; 907, connecting ring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be 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.

[0036] like Figures 1-9 As shown, an angle steel tower with an anti-fall function in this embodiment includes an angle steel tower body 1, a high-protection climbing ladder 2 is radially welded and fixed to the outer wall of the angle steel tower body 1, and a plurality of retaining rings 201 are vertically and equidistantly welded and fixed to the outer wall of the high-protection climbing ladder 2. The outer walls of the retaining rings 201 are all covered with protective pads 202. The retaining rings 201 surround and protect the operator so that the operator can be blocked when the body leans backward. The high-protection climbing ladder 2 and the retaining rings 201 are both made of stainless steel, which is corrosion-resistant and suitable for humid or salt spray environments. The protective pads 202 provide dual protection of anti-slip and buffering, protect the operator's head, and reduce the risk of falling during high-altitude operations. A mounting seat 3 is provided at the bottom end of the angle steel tower body 1, and a limited slide rail 4 is welded and fixed to one side wall of the high-protection climbing ladder 2.

[0037] The limiting slide rail 4 is provided with a first movable groove 401 and a second movable groove 402 from the inside to the outside. The first movable groove 401 is provided with a low-delay self-locking anti-falling mechanism 5. The second movable groove 402 is provided with a plurality of shielding mechanisms 6 for shielding and protecting the anti-falling mechanism 5. The bottom of the limiting slide rail 4 is provided with a protective mechanism 7 for protecting the idle anti-falling mechanism 5.

[0038] The anti-fall mechanism 5 includes a limiting slide 501, limiting teeth 502, and a movable frame 503. The limiting slide 501 is radially arranged on the inner wall of the rear side of the first movable groove 401, and a plurality of limiting teeth 502 are symmetrically arranged on the inner walls on both sides of the first movable groove 401. The movable frame 503 is located in the first movable groove 401. The rear wall of the movable frame 503 is integrally formed with a limiting slider 5031. The outer wall of the limiting slider 5031 is slidably connected to the inner wall of the limiting slide 501. The interior of the movable frame 503 is provided with a limiting component 8 that locks with the limiting teeth 502. The front side of the limiting component 8 is connected with a self-locking device that drives the limiting component 8 to automatically lock. The fixed assembly 9 and the rear inner wall of the mobile frame 503 are welded and fixed with a baffle 5033 for limiting the self-locking assembly 9. When the operator uses it, he wears a mounting belt and connects it to the self-locking assembly 9 through a lock buckle. When the operator climbs the high-protection climbing ladder 2, the limiting slider 5031 of the mobile frame 503 slides along the limiting slide groove 501, thereby driving the limiting assembly 8 and the self-locking assembly 9 to move synchronously and smoothly with the operator, so that the self-locking assembly 9 can be quickly mobilized to lock the limiting assembly 8 when the operator falls accidentally. The limiting assembly 8 cooperates with the limiting teeth 502 to engage and limit, and a low delay is used to achieve rapid locking, reducing the risk of falling impact;

[0039] The front side of the movable frame 503 is provided with a rotating groove 5032 that rotates with the self-locking component 9. The front wall of the movable frame 503 is welded and fixed with a guide shell 504 corresponding to the position of the rotating groove 5032. The upper and lower ends of the guide shell 504 are provided with guide blades 5041 that cooperate with the opening and closing of the shielding mechanism 6. The front wall of the guide shell 504 is connected with a storage box 505. The self-locking component 9 is partially stored in the guide shell 504 and the storage box 505. When the movable frame 503 moves, it drives the guide shell 504 and the storage box 505 to move. The guide blade 5041 arranged on the guide shell 504 guides the opening and closing of the shielding mechanism 6 on the one hand. On the other hand, when the shielding mechanism 6 is affected by the environment and is frozen, the moving guide blade 5041 breaks the ice for the shielding mechanism 6 to ensure the normal operation of the anti-fall mechanism 5. It is suitable for all-weather environments and improves the efficiency of the operator. The guide housing 504 and the storage box 505 provide protection and activity space for the self-locking component 9, ensuring the stable operation of the self-locking component 9;

[0040] The shielding mechanism 6 includes symmetrically arranged shielding plates 601, which are made of aluminum alloy plates, are lightweight and rust-proof, and reduce the resistance to the movement of the mobile frame 503. The side walls of the shielding plates 601 are provided with retaining edges 6011, and the side walls of the shielding plates 601 on both sides are respectively slidably connected to the inner walls of the second movable grooves 402 on both sides. The opposite back surfaces of the two shielding plates 601 are fixedly connected to the inner walls of the second movable grooves 402 with first springs 602. The upper and lower diagonals of the opposite surfaces of the shielding plates 601 on both sides are fixedly set as chamfers 6012. When in idle state, the first springs 602 on both sides push the two shielding plates 601 to merge, sealing the limiting slide rail 4 Closed to prevent rain, dust, etc. from entering the second movable groove 402 and causing corrosion, jamming, etc. of the anti-fall mechanism 5, ensuring the smooth operation of the anti-fall mechanism 5, and further improving the reliability of the anti-fall system. When the anti-fall mechanism 5 is triggered, the guide blade 5041 pushes the shielding plate 601 to separate, exposing the anti-fall path. After the anti-fall mechanism 5 is triggered, the first spring 602 automatically pushes the shielding plate 601 to reset, and closes the limit slide rail 4 in time to prevent the anti-fall path from being exposed for a long time and causing foreign matter to enter. The chamfer 6012 set on the shielding plate 601 provides convenience for the guide housing 504 to squeeze the shielding plates 601 on both sides to open and close, reducing the risk of operation jamming;

[0041] The protection mechanism 7 includes a guide rail 701 and a protection shell 702. The guide rail 701 is symmetrically fixed to the left and right side walls of the limiting slide rail 4. The inner walls of the two sides of the protection shell 702 are provided with a first slide groove 703. The inner wall of the first slide groove 703 is slidably connected to the outer wall of the guide rail 701. The front wall of the protection shell 702 is fixed with a handle 704. When the limiting component 8 and the self-locking component 9 are at the bottom, the protection shell 702 surrounds and protects them, so as to prevent the limiting component 8 and the self-locking component 9 from being exposed to the air for a long time and causing interference with them by foreign objects, thereby further improving the stability of the anti-fall mechanism 5, reducing the maintenance frequency, and increasing the service life of the structure. When in use, the protection shell 702 can be slid out by sliding the handle 704 to expose the self-locking component 9 to the air, and the operator can then perform subsequent operations, which is convenient to operate and improves work efficiency.

[0042] The limiting assembly 8 includes symmetrically arranged limiting plates 801, the outer side walls of the limiting plates 801 are in sliding contact with the inner side walls of the moving frame 503, and the limiting plates 801 are arranged with locking teeth 8011 on one side close to the limiting teeth 502. The opposite surfaces of the limiting plates 801 on both sides are symmetrically provided with guide inclined surfaces 8012, and the surfaces of the guide inclined surfaces 8012 are fixed with limiting protrusions 8013. The upper and lower ends of the limiting plates 801 are welded and fixed with connecting plates 802, and the two connecting plates 802 at the same end are fixedly installed with telescopic rods 803 and second springs 804. When the moving frame 503 moves upward or downward, the limiting teeth 502 squeeze the two limiting plates 801, and the symmetrical limiting plates 801 are elastically reset by the telescopic rods 803 and the second springs 804. The locking teeth 8011 engage with the limiting teeth 502, and the moving frame 503 is pre-locked, providing positioning conditions for quickly responding to the drive of the self-locking assembly 9 and reducing locking delay;

[0043] The self-locking component 9 includes a pressing block 901, a movable rod 902, and a sliding rod 903. The pressing block 901 is located above the baffle 5033. Both sides of the pressing block 901 are provided with pressing inclined surfaces 9011 that match the slope of the guide inclined surface 8012. The surface of the pressing inclined surface 9011 is provided with a second sliding groove 9012. The inner side walls of the second sliding groove 9012 are slidably connected to the outer side walls of the limiting protrusion 8013. The bottom end of the pressing block 901 is provided with a mounting groove 9013. The inner walls of the two sides of the mounting groove 9013 are fixedly connected with a support 9014. The rear end side wall of the movable rod 902 is provided with a movable hole 9021. The inner side wall of the movable hole 9021 is connected to the outer side wall of the support 9014. The side walls are in sliding contact, the outer side wall of the movable rod 902 passes through the interior of the rotating groove 5032, the bottom end of the sliding rod 903 passes through the top of the storage box 505 and is rotatably connected to the front end of the movable rod 902, the top of the movable rod 902 is fixedly connected to the top plate 905, the bottom end of the top plate 905 is fixedly connected to the third spring 906, the bottom end of the third spring 906 is fixedly connected to the fixing ring 904, the fixing ring 904 is fixedly mounted on the upper surface of the storage box 505, the top end of the sliding rod 903 is welded and fixed with a connecting ring 907, the third spring 906 provides a movable support for the top plate 905, so that under normal circumstances, the pressure block 901 is in contact with the baffle 5033 to ensure the movable space of the limit plate 801;

[0044] When the operator climbs up the high protection climbing ladder 2, the safety rope and the lock are connected to the connecting ring 907, and the movable frame 503 is synchronously driven to move upward. At this time, the baffle 5033 blocks the pressing block 901. When the operator falls accidentally, the safety rope is affected by gravity and pulls the connecting ring 907 downward to drive the slide bar 903 to slide downward, pressing one end of the movable rod 902 with the rotating groove 5032 as a fulcrum to drive the other end of the movable rod 902 to tilt upward, and cooperate with the support 9014 through the movable hole 9021 to drive the pressing block 901 upward. When sliding, the second slide groove 9012 slides steadily along the limiting protrusion 8013 until the pressing inclined surface 9011 presses and fits the guiding inclined surface 8012, so that the limiting plates 801 on both sides can be limited to prevent movement. At this time, the anti-falling function can be completed. The double engagement of the limiting teeth 502 and the locking teeth 8011 ensures the locking reliability, and no unnecessary operation is required when climbing, thereby improving the efficiency and safety of climbing. When climbing down, you only need to hold the storage box 505 in advance and slide the limiting component 8 downward, which is convenient to operate.

[0045] The spring coefficient of the third spring 906 is smaller than the spring coefficients of the first spring 602 and the second spring 804. The outer walls of the first spring 602, the second spring 804 and the third spring 906 are all covered with a rubber sleeve. The coefficient of the third spring 906 is smaller. Under the same force, the third spring 906 is more easily compressed or stretched, thereby being triggered first, and the self-locking mechanism is activated more quickly in the event of a fall. The rubber sleeve isolates metal contact, adapts to harsh environments, and prevents corrosion.

[0046] The working principle of this embodiment is as follows: before use, the protective shell 702 is slid out by sliding the handle 704 to expose the self-locking component 9 to the air. The operator wears a safety belt and a safety rope, which are connected to the connecting ring 907 through the lock buckle. After the connection is completed, the operator climbs up the high-protection climbing ladder 2, and simultaneously drives the mobile frame 503 to move upward. At this time, the baffle 5033 blocks and limits the pressing block 901. While the mobile frame 503 moves, the limiting teeth 502 squeeze the two limiting plates 801. The symmetrical limiting plates 801 are elastically reset by the telescopic rod 803 and the second spring 804. The locking teeth 8011 engage with the limiting teeth 502 to pre-lock the mobile frame 503.

[0047] When the operator falls accidentally, the safety rope is affected by gravity and the connecting ring 907 is pulled downward to drive the sliding rod 903 to slide downward, pressing one end of the movable rod 902, and using the rotating groove 5032 as a fulcrum to drive the other end of the movable rod 902 to tilt upward, and cooperate with the supporting column 9014 through the movable hole 9021 to drive the pressing block 901 to slide upward. At the same time, the second sliding groove 9012 slides steadily along the limiting protrusion 8013 until the pressing inclined surface 9011 presses and fits the guiding inclined surface 8012, thereby limiting the limiting plates 801 on both sides to prevent movement. At this time, the fall prevention is completed, and rapid locking is achieved without delay, reducing the risk of falling impact. When climbing down, you only need to hold the storage box 505 with your hand in advance and slide the limiting component 8 downward;

[0048] When in idle state, the first springs 602 on both sides push the two baffles 601 to merge, closing the limiting slide rail 4 to prevent rain, dust, etc. from entering the second movable groove 402 and causing corrosion, jamming, etc. on the anti-fall mechanism 5, ensuring smooth operation of the anti-fall mechanism 5, suitable for all-weather environments, and improving the work efficiency of operators.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An angle steel tower with an anti-fall function, comprising an angle steel tower body (1), characterized in that: A high-protection climbing ladder (2) is radially welded and fixed to the outer wall of the angle steel tower body (1); a plurality of retaining rings (201) are vertically and equidistantly welded and fixed to the outer wall of the high-protection climbing ladder (2); the outer walls of the retaining rings (201) are all covered with protective pads (202); a mounting seat (3) is provided at the bottom end of the angle steel tower body (1); and a limiting slide rail (4) is welded and fixed to one side wall of the high-protection climbing ladder (2); The limiting slide rail (4) is provided with a first movable groove (401) and a second movable groove (402) in sequence from the inside to the outside; an anti-falling mechanism (5) capable of self-locking with low delay is provided inside the first movable groove (401); a plurality of shielding mechanisms (6) for shielding and protecting the anti-falling mechanism (5) are provided inside the second movable groove (402); and a protective mechanism (7) for protecting the idle anti-falling mechanism (5) is provided at the bottom of the limiting slide rail (4); The anti-fall mechanism (5) includes a limiting slide (501), limiting teeth (502), and a movable frame (503), wherein the limiting slide (501) is radially arranged on the inner wall of the rear side of the first movable groove (401), and a plurality of the limiting teeth (502) are symmetrically arranged on the inner walls on both sides of the first movable groove (401), and the movable frame (503) is located in the first movable groove (401), and the rear wall of the movable frame (503) is integrally formed with a limiting slider (5031), and the outer wall of the limiting slider (5031) is slidably connected to the inner wall of the limiting slide (501), and the interior of the movable frame (503) is provided with a limiting component (8) that locks with the limiting teeth (502), and the front side of the limiting component (8) is connected to a self-locking component (9) that drives the limiting component (8) to automatically lock, and a baffle (5033) for limiting the self-locking component (9) is welded and fixed to the inner wall of the rear side of the movable frame (503); The front side of the movable frame (503) is provided with a rotation groove (5032) that rotates with the self-locking component (9); a guide housing (504) corresponding to the position of the rotation groove (5032) is welded and fixed to the front wall of the movable frame (503); the upper and lower ends of the guide housing (504) are provided with guide blades (5041) that open and close in cooperation with the shielding mechanism (6); the front wall of the guide housing (504) is connected to a storage box (505); and the self-locking component (9) is partially stored in the guide housing (504) and the storage box (505); The limiting assembly (8) comprises symmetrically arranged limiting plates (801), the outer side walls of the limiting plates (801) are in sliding contact with the inner side walls of the movable frame (503), the limiting plates (801) are provided with locking teeth (8011) on one side close to the limiting teeth (502), the opposite surfaces of the limiting plates (801) on both sides are symmetrically provided with guiding inclined surfaces (8012), the surfaces of the guiding inclined surfaces (8012) are fixed with limiting protrusions (8013), the upper and lower ends of the limiting plates (801) are welded and fixed with connecting plates (802), and a telescopic rod (803) and a second spring (804) are fixedly installed between the two connecting plates (802) at the same end; The self-locking assembly (9) includes a pressing block (901), a movable rod (902), and a sliding rod (903). The pressing block (901) is located above the baffle (5033). Both sides of the pressing block (901) are provided with pressing inclined surfaces (9011) that match the slope of the guide inclined surface (8012). The surface of the pressing inclined surface (9011) is provided with a second sliding groove (9012). The inner side walls of the second sliding groove (9012) are slidably connected to the outer side walls of the limiting protrusion (8013). The bottom end of the pressing block (901) is provided with a mounting groove (9013). A support (9014) is fixed between the inner walls of the two sides of the mounting groove (9013). The rear end side wall of the movable rod (902) is provided with a mounting groove (9013). A movable hole (9021) is provided, the inner side wall of the movable hole (9021) is in sliding contact with the outer side wall of the support (9014), the outer side wall of the movable rod (902) passes through the interior of the rotating groove (5032), the bottom end of the sliding rod (903) passes through the top end of the storage box (505) and is rotatably connected to the front end of the movable rod (902), the top end of the movable rod (902) is fixedly connected to a top plate (905), the bottom end of the top plate (905) is fixedly connected to a third spring (906), the bottom end of the third spring (906) is fixedly connected to a fixing ring (904), the fixing ring (904) is fixedly installed on the upper surface of the storage box (505), and the top end of the sliding rod (903) is welded and fixed with a connecting ring (907).

2. The angle steel tower with anti-fall function according to claim 1, characterized in that: The shielding mechanism (6) comprises symmetrically arranged shielding plates (601), the side walls of the shielding plates (601) are each provided with a retaining edge (6011), the side walls of the shielding plates (601) on both sides are respectively slidably connected to the inner side walls of the second movable grooves (402) on both sides, a first spring (602) is fixedly connected between the opposite back surfaces of the two shielding plates (601) and the inner side walls of the second movable grooves (402), and the upper and lower diagonals of the opposite surfaces of the shielding plates (601) on both sides are fixedly set as chamfers (6012).

3. The angle steel tower with anti-falling function according to claim 1, characterized in that: The protective mechanism (7) includes a guide rail (701) and a protective shell (702), wherein the guide rail (701) is symmetrically fixed to the left and right side walls of the limiting slide rail (4), and first sliding grooves (703) are provided on the inner walls of both sides of the protective shell (702), and the inner walls of the first sliding grooves (703) are slidably connected to the outer walls of the guide rail (701), and a handle (704) is fixed to the front wall of the protective shell (702).

4. The angle steel tower with anti-fall function according to claim 1, characterized in that: The spring coefficient of the third spring (906) is smaller than the spring coefficients of the first spring (602) and the second spring (804), and the outer side walls of the first spring (602), the second spring (804), and the third spring (906) are all covered with a rubber sleeve.

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