Anti-climbing operation platform of tower crane

Abstract

The utility model discloses an anti-climbing operation platform for a tower crane, which is characterized in that a supporting rod is arranged on a basic section and supports a concave protective screen frame, the supporting rod is connected with the basic section through a first connecting mechanism, and the first connecting mechanism comprises a cross connecting rod and a first one-way clamping table; the supporting rods are connected with the protective net frame and the inner protective frame through second connecting mechanisms. The first connecting mechanism and the second connecting mechanism are locked through the fastening mechanism, the fastening mechanism is composed of a fixed sleeve, a movable sleeve and a fastening sleeve, and the first connecting mechanism or the second connecting mechanism is locked through an internal wedge block. By the adoption of the technical scheme, bolt connection or welding is not adopted, work such as drilling or hole aligning or welding in the early stage is reduced, locking can be achieved by pushing the fastening mechanism in the length direction of the first connecting mechanism or the second connecting mechanism during installation, disassembling can be conducted by slightly screwing the fastening sleeve during disassembling, and the disassembling and assembling efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of tower crane protection equipment, specifically to a tower crane anti-climbing operating platform. Background Technology

[0002] Tower cranes are essential large-scale lifting machinery on construction sites. Tower crane anti-climbing platforms are protective systems designed to prevent accidents caused by unauthorized personnel climbing tower cranes. They primarily ensure the safety of the area surrounding the tower crane and prevent unauthorized personnel from climbing and causing safety hazards. Currently, tower crane anti-climbing platforms consist of a perimeter enclosure at the base of the tower crane with a passageway for workers in the middle. For safety, the components of the guardrail and passageway are welded together. The tower crane and anti-climbing platform are then welded together. The erection and dismantling process is complex and requires a significant amount of manpower.

[0003] Chinese utility model patent application number 202120928791.X discloses a tower crane anti-climbing device, including support rods, plates, and railings. The support rods consist of two or more sets arranged horizontally, each mounted on a crossbar of the tower crane via a connecting mechanism to form a frame. The plates consist of two or more sets placed on the frame. The connecting mechanism includes a U-shaped plate with an opening facing downwards, and a first bolt vertically mounted on the U-shaped plate below the crossbar. The support rods are placed on the U-shaped plates, which are connected to the support rods via a fastening mechanism. Vertical square tubes are provided on the plates, and the vertical tubes at the lower end of the railings are inserted into the square tubes. This design is more convenient for assembly and disassembly compared to traditional welding.

[0004] However, this solution uses a large number of bolts for connection. The bolts need to be drilled and positioned during installation, and they need to be tightened or loosened. In addition, the anti-climbing frame is set on the standard section of the tower crane. Due to the limited space, it is not easy to exert force, which makes disassembly and assembly inconvenient. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the above-mentioned technologies by proposing a tower crane anti-climbing operation platform, which aims to solve the problems of drilling, positioning, and poor spatial adaptability during assembly and disassembly of the bolted connections.

[0006] This utility model provides a tower crane anti-climbing operating platform, including a base section and several support rods parallel to the ground and erected on the upper edge of the base section. The base section and the support rods are connected by a first connecting mechanism. The support rods located on the periphery of the tower crane are movably connected to a protective net frame. The inner frame of the base section is provided with an internal protective frame, which is located on the outside of the tower crane ladder. The support rods are movably connected to the protective net frame and the internal protective frame through a second connecting mechanism. Both the first connecting mechanism and the second connecting mechanism are locked by a fastening mechanism.

[0007] Preferably, the support rod is a square tube, and the protective mesh frame consists of two identical and symmetrically arranged concave mesh frames. A protective mesh is fastened inside the protective mesh frame, and the two protective mesh frames are connected by fasteners. The internal protective frame includes a frame and a protective plate, which is fastened to the frame. The protective plate has several through holes.

[0008] Preferably, the first connecting mechanism includes a cross connecting rod, the end of which is inserted into the gap formed by the intersection of the support rod and the base section. Each end of the cross connecting rod is provided with a plurality of first one-way locking platforms at equal intervals, and the working surface of the first one-way locking platforms points towards the cross connecting side.

[0009] Preferably, the second connecting mechanism includes a cross-connecting belt, the end of which is inserted into the gap formed by the intersection of the support rod and the protective mesh frame or frame. The cross-section of the cross-connecting belt is fan-shaped, and a plurality of second one-way latches are fixed at equal intervals at the end of the cross-connecting belt. The second one-way latches fit against the arc surface of the cross-connecting belt, and the working surface of the second one-way latches points to the cross-connecting side of the cross-connecting belt.

[0010] Preferably, the fastening mechanism includes a fixed sleeve that slides around the periphery of the first one-way locking platform or the periphery of the second one-way locking platform. The bottom end of the fixed sleeve has a groove, and a slider slides in the groove. The end of the slider away from the groove is fixedly connected to a movable sleeve. The movable sleeve consists of two identical and symmetrical semi-cylinders. Both movable sleeves have corresponding slots. A telescopic rod is fixedly connected to the inner wall of the slot. A wedge is fixedly connected to the other end of the telescopic rod. A first spring is sleeved on the telescopic rod. The horizontal surface of the wedge movably abuts against the horizontal surface of the first one-way locking platform or the second one-way locking platform. The bottom end of each movable sleeve is fixedly connected to a threaded semi-ring. The two threaded semi-rings are combined to form a ring.

[0011] The two movable sleeves have blind holes on their interlocking surfaces. One end of a sliding rod is fixedly connected to the bottom wall of the blind hole. The other end of the two sliding rods is fitted with a sleeve. A second spring is fitted inside the sleeve. The two ends of the second spring are fixedly connected to the ends of the sliding rods. The fastening mechanism also includes a fastening sleeve. The inner wall of the fastening sleeve has a threaded semi-ring that engages with the two fused pieces.

[0012] A fastening rod is fixedly connected between two fixed sleeves symmetrical to the center of the cross connecting rod, and the fastening rod and the support rod are movably pressed together.

[0013] Preferably, the ends of the cross connecting rod and the cross connecting strip are movably fitted with protective covers, and the protective cover wall has a protruding retaining ring, which is interference-fitted with the first one-way retaining platform or the second one-way retaining platform.

[0014] Compared with existing technologies, it has the following beneficial effects:

[0015] This utility model provides a tower crane anti-climbing operating platform. A support rod is mounted on a foundation section, supporting a concave protective mesh frame. The support rod and the foundation section are connected by a first connecting mechanism, which includes a cross-shaped connecting rod and a first one-way locking platform. Similarly, the support rod is connected to the protective mesh frame and the internal protective frame by a second connecting mechanism. Both the first and second connecting mechanisms are locked by a fastening mechanism, which consists of a fixed sleeve, a movable sleeve, and a fastening sleeve. Internal wedges lock either the first or second connecting mechanism in place. This technical solution eliminates the need for bolts or welding, reducing the need for drilling, hole alignment, or welding. During installation, the fastening mechanism can be locked by pushing along the length of the first or second connecting mechanism. Disassembly is achieved by slightly twisting the fastening sleeve, effectively improving assembly and disassembly efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of a tower crane anti-climbing operating platform according to the present invention;

[0018] Figure 2 This is a schematic diagram of the support rod and foundation section of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective mesh frame and protective mesh of this utility model;

[0020] Figure 4 This is a schematic diagram of the first connecting mechanism and the fastening mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the second connecting mechanism of this utility model;

[0022] Figure 6 This is an unfolded view of the second connecting mechanism of this utility model;

[0023] Figure 7 This is an exploded view of the fastening mechanism of this utility model;

[0024] Figure 8 This is a diagram showing the internal structure of the fastening mechanism of this utility model;

[0025] Figure 9 This is a diagram of the internal structure of the movable sleeve of this utility model;

[0026] Figure 10This is a schematic diagram of the protective cover of this utility model.

[0027] In the diagram, the components are: base section-11; support rod-12; protective mesh frame-13; protective mesh-131; fastener-132; internal protective frame-14; frame-141; protective plate-142; through hole-143; first connecting mechanism-2; cross connecting rod-21; first one-way locking platform-22; second connecting mechanism-3; cross connecting belt-31; second one-way locking platform-32; fastening mechanism-4; fixing sleeve-41; slide groove-411; slider-412; movable sleeve-42; slot-421; telescopic rod-422; wedge-423; first spring-424; blind hole-425; sliding rod-426; sleeve-427; second spring-428; threaded half ring-429; fastening sleeve-43; fastening rod-44; protective cover-5; and retaining ring-51. Detailed Implementation

[0028] To better understand the structure, functional features, and advantages of this utility model, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0029] Example:

[0030] like Figures 1 to 10 As shown, this utility model provides a tower crane anti-climbing operating platform, including a base section 11 and several support rods 12 parallel to the ground and erected on the upper edge of the base section 11. The base section 11 is an important part for increasing the height of the tower crane and provides support for the tower crane. The support rods 12 are set on the flat frame on the upper edge of the base section 11. The base section 11 and the support rods 12 are connected by a first connecting mechanism 2. The support rods 12 located on the periphery of the tower crane are movably connected to a protective net frame 13. The inner frame of the base section 11 is provided with an internal protective frame 14, which is located on the outside of the tower crane ladder. The support rods 12 are movably connected to the protective net frame 13 and the internal protective frame 14 by a second connecting mechanism 3. Both the first connecting mechanism 2 and the second connecting mechanism 3 are locked by a fastening mechanism 4.

[0031] The support rod 12 is a square tube. In this application, two parallel square steel tubes are used as the support rod 12. The protective mesh frame 13 consists of two identical and symmetrically arranged concave mesh frames. A protective mesh 131 is fastened inside the protective mesh frame 13. The connection between the two protective mesh frames 13 is achieved by fasteners 132. The fasteners 132 here are bolted connections. The internal protective frame 14 includes a frame 141 and a protective plate 142. The protective plate 142 is fastened to the frame 141. The protective plate 142 has several through holes 143, which allow water to pass through. The protective plate 142 can also be replaced with a protective mesh. The protective plate 142 is U-shaped, and the gaps are for the passage of the ladder, through which workers climb up and down the tower crane.

[0032] As another embodiment, such as Figures 2 to 6 As shown, the first connecting mechanism 2 of this application includes a cross connecting rod 21. The end of the cross connecting rod 21 is inserted into the gap formed by the intersection of the support rod 12 and the base section 11. Each end of the cross connecting rod 21 is fixed with a plurality of first one-way latches 22 at equal intervals. The working surface of the first one-way latches 22 points towards the cross connecting side. The cross connecting rod 21 is a metal rod, that is, two concave folded rods that intersect each other at a right angle. The support rod 12 and the base section 11 intersect in a cross shape, and the cross connecting rod 21 is inserted into the gap next to it to limit the support rod 12 and the base section 11. The first one-way latches 22 are table-shaped latches, with the wide surface pointing towards the intersection direction of the cross connecting rod 21. The first one-way latches 22 and the cross connecting rod 21 are integrally formed.

[0033] The second connecting mechanism 3 includes a cross-connecting band 31. The end of the cross-connecting band 31 is inserted into the gap formed by the intersection of the support rod 12 and the protective net frame 13 or frame 141. The cross-connecting band 31 has a fan-shaped cross section. Several second one-way clamps 32 are fixed at equal intervals at the ends of the cross-connecting band 31. The second one-way clamps 32 fit against the arc surface of the cross-connecting band 31, and the working surface of the second one-way clamps 32 points towards the cross-connecting side of the cross-connecting band 31. The cross-connecting band 31 is a tough plastic band that crosses each other. The material is the same as that of high-strength binding tape, such as PET. The cross section of each end of the cross-connecting band 31 is a quarter circle. The four ends form a complete cylinder. Similarly, the second one-way clamps 32 are combined to form a complete cylinder. The shape of the second one-way clamps 32 is the same as that of the first one-way clamps 22. They are integrally formed with the cross-connecting band 31.

[0034] Because the connection between the support rod 12 and the base section 11 is relatively thick and plays a major supporting role, a corresponding cross-connecting rod 21 is set according to the model of the support rod 12 and the base section 11. The protective mesh frame 13, connected to the support rod 12, does not play a major supporting role, and its assembly space is limited due to the influence of the base section 11 and the protective mesh 131. Therefore, a cross-connecting strap 31 is more flexible, and its material also provides sufficient support.

[0035] As another embodiment, such as Figures 7 to 9As shown, the fastening mechanism 4 of this application includes a fixing sleeve 41 that slides around the periphery of the first one-way locking platform 22 or the periphery of the second one-way locking platform 32. The fixing sleeve 41 has a central through hole, and the diameter of the through hole is larger than the diameter of the thick part of the first one-way locking platform 22 or the second one-way locking platform 32. The bottom end of the fixed sleeve 41 is provided with a groove 411, and a slider 412 slides in the groove 411. The end of the slider 412 away from the groove 411 is fixedly connected to a movable sleeve 42. The movable sleeve 42 consists of two identical and symmetrical semi-cylinders. Both movable sleeves 42 are provided with corresponding slots 421. The inner wall of the slot 421 is fixedly connected to a telescopic rod 422. The other end of the telescopic rod 422 is fixedly connected to a wedge 423. The telescopic rod 422 is fitted with a first spring 424. The horizontal surface of the wedge 423 is in contact with the horizontal surface of the first one-way locking platform 22 or the second one-way locking platform 32. The bottom end of each movable sleeve 42 is fixedly connected to a threaded half-ring 429. The two threaded half-rings 429 are combined to form a ring.

[0036] The movable sleeve 42 and the slider 412 can slide along the groove 411 to increase or decrease the distance between the two movable sleeves 42. A through hole is also formed at the center of the movable sleeve 42 along its thickness direction, with the same diameter as the through hole in the fixed sleeve 41. The telescopic rod 422 consists of two or three sleeves that interlock, each with rolled edges to prevent slippage between the sleeves. The top of the wedge block 423 is inclined, and the bottom is horizontal. When the horizontal surface of the wedge block 423 abuts against the horizontal surface of the first one-way locking platform 22 or the second one-way locking platform 32, the first spring 424 extends. When the inclined surface of the wedge block 423 abuts against the inclined surface of the first one-way locking platform 22 or the second one-way locking platform 32, the spring compresses, forming a one-way lock. The two movable sleeves 42 snap together to form a complete cylinder, and the two threaded half-rings 429 combine to form a ring, with the threads located on the periphery of the threaded half-rings 429.

[0037] Both movable sleeves 42 have blind holes 425 on their interlocking surfaces. One end of a sliding rod 426 is fixedly connected to the bottom wall of each blind hole 425. A sleeve 427 is fitted onto the other end of each sliding rod 426. A second spring 428 is fitted inside the sleeve 427, and both ends of the second spring 428 are fixedly connected to the ends of the sliding rods 426. The fastening mechanism 4 also includes a fastening sleeve 43. The inner wall of the fastening sleeve 43 has a threaded half-ring 429 that engages with the two merged pieces. The two merged threaded half-rings 429 are fastened by the fastening sleeve 43. When the fastening sleeve 43 rotates and separates from the threaded half-rings 429, the two threaded half-rings 429 are pushed open by the second spring 428 at the connecting part, causing the distance between the wedges 423 to increase. The wedges 423 disengage from the horizontal plane of the first one-way locking platform 22 or the second one-way locking platform 32, thus separating the fastening mechanism 4 from the cross connecting rod 21 or the cross connecting band 31 for easy subsequent disassembly.

[0038] A fastening rod 44 is fixedly connected between two fixing sleeves 41 symmetrically positioned at the center of the cross connecting rod 21. Specifically, the fastening rod 44 is fixedly connected between the fixing sleeves 41 at both ends of the concave folding rod, and the fastening rod 44 is movably pressed against the support rod 12. When the support rod 12 and the base section 11 are locked, the cross connecting rod 21 is pressed against the top end, and the fastening rod 44 and the fixing sleeves 41 are pressed against the bottom end, making the fastening more stable.

[0039] As another embodiment, such as Figure 10 As shown, the ends of the cross connecting rod 21 and the cross connecting strap 31 are movably fitted with protective covers 5. A retaining ring 51 protrudes from the wall of the protective cover 5, and the retaining ring 51 is press-fitted with either the first one-way retaining platform 22 or the second one-way retaining platform 32. The retaining ring 51 and the protective cover 5 are integrally formed. When protecting the cross connecting rod, the protective covers 5 can be mounted on a single protective cover plate. The protective covers 5 are made of rubber to prevent the ends of the cross connecting rod 21 and the cross connecting strap 31 from causing abrasions to workers.

[0040] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A tower crane anti-climbing operating platform, comprising a base section (11) and a plurality of support rods (12) parallel to the ground and erected on the upper edge of the base section (11), characterized in that, The base section (11) is connected to the support rod (12) through a first connecting mechanism (2). The support rod (12) is movably connected to a protective net frame (13) on the outer side of the tower crane. The inner frame of the base section (11) is provided with an internal protective frame (14). The internal protective frame (14) is located on the outside of the tower crane ladder. The support rod (12), the protective net frame (13), and the internal protective frame (14) are all movably connected through a second connecting mechanism (3). The first connecting mechanism (2) and the second connecting mechanism (3) are both locked by a fastening mechanism (4).

2. The tower crane anti-climbing operating platform according to claim 1, characterized in that, The support rod (12) is a square tube, and the protective mesh frame (13) consists of two identical and symmetrically arranged concave mesh frames. A protective mesh (131) is fastened inside the protective mesh frame (13), and the connection between the two protective mesh frames (13) is achieved by fasteners (132). The internal protective frame (14) includes a frame (141) and a protective plate (142). The protective plate (142) is fastened to the frame (141), and the protective plate (142) has several through holes (143).

3. The tower crane anti-climbing operating platform according to claim 2, characterized in that, The first connecting mechanism (2) includes a cross connecting rod (21), the end of which is inserted into the gap formed by the intersection of the support rod (12) and the base section (11). Each end of the cross connecting rod (21) is provided with a plurality of first one-way clamps (22) at equal intervals, and the working surface of the first one-way clamps (22) points to the cross connecting side.

4. The tower crane anti-climbing operating platform according to claim 3, characterized in that, The second connecting mechanism (3) includes a cross connecting strip (31), the end of which is inserted into the gap formed by the intersection of the support rod (12) and the protective net frame (13) or the frame (141). The cross section of the cross connecting strip (31) is fan-shaped. Several second one-way clamps (32) are fixed at equal intervals at the end of the cross connecting strip (31). The second one-way clamps (32) are in contact with the arc surface of the cross connecting strip (31). The working surface of the second one-way clamps (32) points to the cross connecting side of the cross connecting strip (31).

5. The tower crane anti-climbing operating platform according to claim 4, characterized in that, The fastening mechanism (4) includes a fixed sleeve (41) that slides around the first one-way latch (22) or the second one-way latch (32). The bottom end of the fixed sleeve (41) is provided with a groove (411). A slider (412) slides in the groove (411). A movable sleeve (42) is fixedly connected to the end of the slider (412) away from the groove (411). The movable sleeve (42) consists of two identical and symmetrical semi-cylinders. Both movable sleeves (42) are provided with corresponding... A slot (421) is made, and a telescopic rod (422) is fixedly connected to the inner wall of the slot (421). A wedge (423) is fixedly connected to the other end of the telescopic rod (422). A first spring (424) is sleeved on the telescopic rod (422). The horizontal plane of the wedge (423) is in movable contact with the horizontal plane of the first one-way locking platform (22) or the second one-way locking platform (32). A blind hole (425) is fixedly connected to the bottom end of the movable sleeve (42). The two blind holes (425) are combined to form a ring.

6. The tower crane anti-climbing operating platform according to claim 5, characterized in that, The two movable sleeves (42) have blind holes (425) on their interlocking surfaces. One end of a sliding rod (426) is fixedly connected to the bottom wall of the blind hole (425). The other end of the two sliding rods (426) is fitted with a sleeve (427). A second spring (428) is fitted inside the sleeve (427). The two ends of the second spring (428) are fixedly connected to the ends of the sliding rods (426). The fastening mechanism (4) also includes a fastening sleeve (43). The inner wall of the fastening sleeve (43) is threaded to engage with the two merged threaded half-rings (429).

7. The tower crane anti-climbing operating platform according to claim 5, characterized in that, A fastening rod (44) is fixedly connected between two fixing sleeves (41) symmetrical to the center of the cross connecting rod (21), and the fastening rod (44) is movably pressed against the support rod (12).

8. The tower crane anti-climbing operating platform according to claim 4, characterized in that, The ends of the cross connecting rod (21) and the cross connecting strip (31) are movably fitted with protective covers (5), and the protective cover (5) has a retaining ring (51) protruding from its wall. The retaining ring (51) is interference-fitted with the first one-way retaining table (22) or the second one-way retaining table (32).

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