Anti-climbing device adaptive to various types of tower cranes

Abstract

The utility model belongs to the technical field of tower cranes, and particularly provides an anti-climbing device adaptive to tower cranes of various models, which comprises a support mechanism and a plurality of screen plates, the screen plates are uniformly distributed on the support mechanism and are fixed through a locking mechanism, the support mechanism comprises a support rod, a sleeve, a connecting rod and a spring, and the sleeve is sleeved on the support rod. The four supporting rods are placed on a cross beam of a crane rack, the two ends of each supporting rod are slidably sleeved with sleeves respectively, the two sleeves located on the same side are connected through a connecting rod, the two ends of the spring are fixedly connected with the connecting rod and the supporting rods respectively, and the faces, close to each other, of the supporting rods and the connecting rods abut against the inner faces and the outer faces of stand columns of the crane rack. Through the arrangement of the supporting rod, the sleeve, the connecting rod and the spring, the size of the supporting mechanism can be conveniently adjusted, the supporting mechanism is suitable for tower cranes of different models and types, meanwhile, the supporting mechanism and a crane rack can be fixed through the elastic force of the spring, use of bolts is reduced, and the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, in particular to an anti-climbing device suitable for various types of tower cranes. Background Art

[0002] Tower crane is also called tower crane, which originated in Western Europe. It is a rotating crane with a boom mounted on the top of a tall tower. It has a large working space and is mainly used for vertical and horizontal transportation of materials and installation of building components in house construction. It consists of three parts: metal structure, working mechanism and electrical system. The metal structure includes the tower, boom and base.

[0003] At present, there are many types of tower cranes, with different cross-sectional sizes and ladder positions. Therefore, the existing anti-climbing devices need to be processed according to the actual size, which cannot meet the use of tower cranes of different models and types, is not convenient for turnover, and is more troublesome to produce on site. In addition, the existing anti-climbing devices are usually installed and fixed with a large number of bolts, and the disassembly and assembly process is cumbersome and inefficient. Utility Model Content

[0004] In view of the technical problems in the prior art, the utility model provides an anti-climbing device suitable for various models of tower cranes, comprising a supporting mechanism and a plurality of mesh plates, wherein the supporting mechanism is placed on a crossbeam of a crane frame and extends out of the crane frame, the plurality of mesh plates are evenly arranged on the supporting mechanism and fixed by a locking mechanism, a through hole for a ladder to pass through is provided on the mesh plate inside the crane frame, and a movable door is rotatably provided in the through hole for facilitating personnel to crawl, the supporting mechanism comprises a supporting rod, a sleeve, a connecting rod and a spring, four of the supporting rods are surrounded in a square shape and placed on the crossbeam of the crane frame, the two ends of the supporting rod extend out of the crane frame, the two ends of the supporting rod are respectively slidably sleeved with sleeves, the two sleeves on the same side are connected by a connecting rod, the spring is installed between the two sleeves, and the two ends of the spring are respectively fixedly connected to the connecting rod and the supporting rod, and the sides of the supporting rod and the connecting rod that are close to each other abut against the inner and outer surfaces of the crane frame column under the elastic force of the spring.

[0005] Furthermore, the spring comprises a plurality of springs, and the plurality of springs are arranged at equal intervals along the length direction of the connecting rod.

[0006] Furthermore, a first telescopic rod is installed in the spring, and two ends of the first telescopic rod are fixedly connected to the connecting rod and the supporting rod respectively.

[0007] Furthermore, the supporting mechanism also includes a first reinforcing rod and a second reinforcing rod, a plurality of the first reinforcing rods are crisscrossedly placed on the four supporting rods, and the two ends of the first reinforcing rods are respectively fixedly connected to the two opposite supporting rods, a plurality of the second reinforcing rods are spaced apart and placed on the two sleeves on the same side, and the two ends of the second reinforcing rods are respectively fixedly connected to the two sleeves, and the mesh plate is fixedly connected to the supporting rods, sleeves, first reinforcing rods and second reinforcing rods through a locking mechanism.

[0008] Furthermore, the support rod and the sleeve are both provided with a plurality of limiting grooves along their length directions, and the first reinforcing rod and the second reinforcing rod are both placed in the limiting grooves.

[0009] Furthermore, the locking mechanism includes a plurality of second telescopic rods, a plurality of compression springs and a plurality of square pressure plates, the mesh plate is provided with a plurality of square holes matching the square pressure plates, the square holes correspond to the square pressure plates one by one, one end of the second telescopic rod is welded to the support rod, the sleeve, the first reinforcing rod or the second reinforcing rod, and the other end is rotatably connected with the square pressure plate, the compression spring is sleeved outside the second telescopic rod, one end of the compression spring is fixedly connected to the support rod, the sleeve, the first reinforcing rod or the second reinforcing rod, and the other end is fixedly connected to the square pressure plate through a rotating bearing, when the long side of the square pressure plate is parallel to the long side of the square hole, the mesh plate and the support rod, the sleeve, the first reinforcing rod or the second reinforcing rod are movably connected, otherwise the mesh plate and the support rod, the sleeve, the first reinforcing rod or the second reinforcing rod are fixedly connected.

[0010] Beneficial effects:

[0011] 1. In the utility model, the size of the support mechanism can be conveniently adjusted through the arrangement of the support rod, sleeve, connecting rod and spring to adapt to the use of tower cranes of different models and types. At the same time, the elastic force of the spring can be used to fix the support mechanism to the crane frame, thereby reducing the use of bolts and improving the efficiency of disassembly and assembly. During specific use, the area of ​​the support mechanism can be changed through the sliding connection between the support rod and the sleeve, thereby meeting the installation requirements of crane frames of different sizes. Combined with the coordinated arrangement of the connecting rod and the spring, on the one hand, the elastic force of the spring can be used to fix the connecting rod and the support rod to the two columns of the crane frame to prevent the support rod from moving in the horizontal direction. Combined with the crossbeam of the crane frame, it can prevent it from moving in the vertical direction, thereby achieving effective fixation. On the other hand, the elastic force of the spring can also be used to fix the adjacent support rods and the sleeve to prevent the sleeve from falling off the support rod. Combined with the arrangement of the locking mechanism, the fixation of the mesh plate and the support mechanism can be facilitated.

[0012] 2. In the present invention, by setting up multiple springs, the connection strength can be improved to prevent loosening; by setting up the first telescopic rod, the linear movement of the spring can be ensured, the effective elastic force and service life of the spring can be improved, and the connection strength can be further improved.

[0013] 3. In the utility model, by setting the first reinforcing rod and the second reinforcing rod, it is possible to prevent the square structure formed by the four support rods from being deformed, thereby improving the structural strength of the support mechanism and at the same time improving the supporting strength of the mesh plate to ensure safety; by setting the limiting groove, on the one hand, it is possible to facilitate the positioning and installation of the first reinforcing rod and the second reinforcing rod to improve the installation efficiency, and on the other hand, it is possible to prevent the first reinforcing rod and the second reinforcing rod from sliding and shifting.

[0014] 4. In the utility model, by setting a plurality of second telescopic rods, a plurality of compression springs, a plurality of square pressure plates and square holes, the mesh plate can be quickly disassembled and assembled, which further reduces the use of bolts and improves efficiency. Specifically, during installation, the mesh plate is first placed on the support rod, the sleeve, the first reinforcing rod and the second reinforcing rod, so that the square hole and the square pressure plate are matched, that is, the long side of the square pressure plate is parallel to the long side of the square hole, and then the square pressure plate is pulled up from the square hole so that the square pressure plate is higher than the mesh plate. At this time, the spring is in a stretched state, and then the square pressure plate is rotated so that its long side forms a certain acute angle or right angle with the long side of the square hole. Finally, the external force is removed. The square pressure plate will be tightly pressed on the mesh plate under the elastic force of the spring to fix it. During disassembly, the square pressure plate is pulled up with external force, and the square pressure plate is rotated so that its long side is parallel to the long side of the square hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the support mechanism of the utility model;

[0018] Figure 3 for Figure 2 Detailed structural diagram at A in the middle;

[0019] Figure 4 This is a schematic diagram of the mesh plate structure of the utility model;

[0020] Figure 5This is a schematic diagram of the locking mechanism structure of the utility model.

[0021] Description of reference numerals:

[0022] 1. mesh plate; 2. crane frame; 3. locking mechanism; 31. second telescopic rod; 32. compression spring; 33. square pressure plate; 4. support rod; 5. sleeve; 6. connecting rod; 7. spring; 8. first telescopic rod; 9. first reinforcing rod; 10. second reinforcing rod; 11. limit groove; 12. square hole; 13. guardrail. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0029] The utility model provides an anti-climbing device suitable for various types of tower cranes, such as Figure 1 , Figure 2 and Figure 3As shown, it includes a support mechanism and a plurality of mesh plates 1, the support mechanism is placed on the crossbeam of the crane frame 2 and extends out of the crane frame 2, the plurality of mesh plates 1 are evenly arranged on the support mechanism and fixed by a locking mechanism 3, to ensure safety, a guardrail 13 can be arranged at the edge of the support mechanism, the guardrail 13 is a retractable structure, and is convenient for cooperation with the support mechanism, a through hole for a ladder to pass through is opened on the mesh plate 1 located in the crane frame 2, and the through hole is rotatably provided with a movable door for people to crawl, the support mechanism includes a support rod 4, a sleeve 5, a connecting rod 6 and a spring 7, and the four support rods 4 form a square , and placed on the crossbeam of the crane frame 2, the two ends of the support rod 4 extend out of the crane frame 2, the two ends of the support rod 4 are respectively slidably sleeved with sleeves 5, and the two sleeves 5 on the same side are connected by a connecting rod 6, wherein the connection position of the connecting rod 6 and the sleeve 5 can be freely placed according to actual conditions, such as placed on the upper surface, lower surface or middle part of the sleeve 5, the spring 7 is installed between the two sleeves 5, and the two ends of the spring 7 are respectively fixedly connected to the connecting rod 6 and the support rod 4, and the side of the support rod 4 and the connecting rod 6 that are close to each other abuts against the inner and outer surfaces of the crane frame 2 column under the elastic force of the spring 7.

[0030] In this embodiment, by setting the support rod 4, sleeve 5, connecting rod 6 and spring 7, the size of the support mechanism can be conveniently adjusted to adapt to the use of tower cranes of different models and types. At the same time, the elastic force of the spring 7 can be used to fix the support mechanism to the crane frame 2, reduce the use of bolts, and improve the efficiency of disassembly and assembly. During specific use, the area of ​​the support mechanism can be changed by the sliding connection between the support rod 4 and the sleeve 5, so as to meet the installation of crane frames 2 of different sizes. Combined with the coordinated setting of the connecting rod 6 and the spring 7, on the one hand, the elastic force of the spring 7 can be used to fix the connecting rod 6 and the support rod 4 to the two columns of the crane frame 2 to prevent the support rod 4 from moving in the horizontal direction. Combined with the crossbeam of the crane frame 2, it can prevent it from moving in the vertical direction, thereby achieving effective fixation. On the other hand, the elastic force of the spring 7 can also be used to fix the adjacent support rods 4 and the sleeve 5 to prevent the sleeve 5 from falling off the support rod 4. Combined with the setting of the locking mechanism 3, the fixation of the mesh plate 1 and the support mechanism can be facilitated.

[0031] In the present invention, preferably, Figure 1 , Figure 2 and Figure 3 As shown, the spring 7 includes multiple springs 7, which are arranged at equal intervals along the length direction of the connecting rod 6; a first telescopic rod 8 is installed in the spring 7, and both ends of the first telescopic rod 8 are fixedly connected to the connecting rod 6 and the support rod 4 respectively.

[0032] In this embodiment, by providing multiple springs 7, the connection strength can be improved to prevent loosening; by providing the first telescopic rod 8, the linear movement of the spring 7 can be ensured, the effective elastic force and service life of the spring 7 can be improved, and the connection strength can be further improved.

[0033] In the present invention, preferably, Figure 1 , Figure 2 and Figure 3 As shown, the support mechanism also includes a first reinforcing rod 9 and a second reinforcing rod 10, and multiple first reinforcing rods 9 are crisscrossed and placed on the four support rods 4, and the two ends of the first reinforcing rod 9 are respectively fixedly connected to the two opposite support rods 4, and multiple second reinforcing rods 10 are spaced apart and placed on the two sleeves 5 on the same side, and the two ends of the second reinforcing rod 10 are respectively fixedly connected to the two sleeves 5, and the mesh plate 1 is fixedly connected to the support rods 4, the sleeves 5, the first reinforcing rod 9 and the second reinforcing rod 10 through the locking mechanism 3; the support rods 4 and the sleeves 5 are each provided with a plurality of limiting grooves 11 along their length directions, and the first reinforcing rods 9 and the second reinforcing rods 10 are both placed in the limiting grooves 11, wherein the sizes of the first reinforcing rods 9, the second reinforcing rods 10 and the limiting grooves 11 can be adjusted according to actual conditions to ensure that the mesh plate 1 can be in a horizontal state after installation.

[0034] In this embodiment, by setting the first reinforcing rod 9 and the second reinforcing rod 10, the square structure formed by the four support rods 4 can be prevented from deformation, thereby improving the structural strength of the support mechanism, and at the same time improving the supporting strength of the mesh plate 1 to ensure safety; by setting the limiting groove 11, on the one hand, it is convenient to position and install the first reinforcing rod 9 and the second reinforcing rod 10 to improve the installation efficiency, and on the other hand, it is also possible to prevent the first reinforcing rod 9 and the second reinforcing rod 10 from sliding and shifting.

[0035] In the present invention, preferably, Figure 1 , Figure 4 and Figure 5As shown, the locking mechanism 3 includes a plurality of second telescopic rods 31, a plurality of compression springs 32 and a plurality of square pressure plates 33. The mesh plate 1 is provided with a plurality of square holes 12 that cooperate with the square pressure plates 33. The square holes 12 correspond to the square pressure plates 33 one by one. One end of the second telescopic rod 31 is welded to the support rod 4, the sleeve 5, the first reinforcing rod 9 or the second reinforcing rod 10, and the other end is rotatably connected with the square pressure plate 33. The compression spring 32 is sleeved outside the second telescopic rod 31, one end of the compression spring 32 is fixedly connected to the support rod 4, the sleeve 5, the first reinforcing rod 9 or the second reinforcing rod 10, and the other end is fixedly connected to the square pressure plate 33 through a rotating bearing. When the long side of the square pressure plate 33 is parallel to the long side of the square hole 12, the mesh plate 1 is movably connected to the support rod 4, the sleeve 5, the first reinforcing rod 9 or the second reinforcing rod 10; otherwise, the mesh plate 1 is fixedly connected to the support rod 4, the sleeve 5, the first reinforcing rod 9 or the second reinforcing rod 10.

[0036] In this embodiment, by setting a plurality of second telescopic rods 31, a plurality of compression springs 32, a plurality of square pressure plates 33 and square holes 12, the mesh plate 1 can be quickly disassembled and assembled, further reducing the use of bolts and improving efficiency. At the same time, the locking mechanism 3 can only be opened from above to prevent climbing personnel from opening it. Specifically, during installation, Figures 1 to 5 As shown, first place the mesh plate 1 on the support rod 4, the sleeve 5, the first reinforcing rod 9 and the second reinforcing rod 10, so that the square hole 12 cooperates with the square pressure plate 33, that is, the long side of the square pressure plate 33 is parallel to the long side of the square hole 12, and then pull up the square pressure plate 33 from the square hole 12 so that the square pressure plate 33 is higher than the mesh plate 1. At this time, the spring 7 is in a stretched state. Then, rotate the square pressure plate 33 so that its long side forms a certain acute angle or right angle with the long side of the square hole 12, preferably a right angle. Finally, remove the external force. The square pressure plate 33 will be tightly pressed on the mesh plate 1 under the elastic force of the spring 7 to fix it. When disassembling, use external force to pull up the square pressure plate 33, and rotate the square pressure plate 33 so that its long side is parallel to the long side of the square hole 12.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An anti-climbing device suitable for various types of tower cranes, comprising a support mechanism and a plurality of mesh panels (1), wherein the support mechanism is placed on a crossbeam of a crane frame (2) and extends out of the crane frame (2), wherein the plurality of mesh panels (1) are evenly arranged on the support mechanism and fixed by a locking mechanism (3), wherein a through hole for a ladder to pass through is provided on the mesh panel (1) located in the crane frame (2), and a movable door is rotatably provided in the through hole for facilitating climbing of personnel, wherein the plurality of mesh panels (1) are evenly arranged on the support mechanism and fixed by a locking mechanism (3), wherein the through hole is rotatably provided with a movable door for facilitating climbing of personnel, and wherein the plurality of mesh panels (1) are evenly arranged on the support mechanism and fixed by a locking mechanism (3), wherein the plurality of mesh panels (1) are evenly arranged on the support mechanism and fixed by a locking mechanism (3), wherein the plurality of mesh panels (1) located in the crane frame (2) are provided with a through hole for a ladder to pass through, and the through hole is rotatably provided with a movable door for facilitating climbing of personnel, and wherein the plurality of mesh panels (1) are evenly arranged on the support mechanism and fixed by a locking mechanism (3), ... The support mechanism comprises a support rod (4), a sleeve (5), a connecting rod (6) and a spring (7). Four support rods (4) are arranged in a square shape and are placed on a crossbeam of a crane frame (2). Both ends of the support rod (4) extend out of the crane frame (2). Both ends of the support rod (4) are respectively slidably sleeved with a sleeve (5). Two sleeves (5) located on the same side are connected by a connecting rod (6). The spring (7) is installed between the two sleeves (5), and both ends of the spring (7) are respectively fixedly connected to the connecting rod (6) and the support rod (4). The side of the support rod (4) and the connecting rod (6) that is close to each other abuts against the inner and outer surfaces of the crane frame (2) column under the elastic force of the spring (7).

2. The anti-climbing device adapted to various types of tower cranes according to claim 1, characterized in that: The spring (7) comprises a plurality of springs, and the plurality of springs (7) are arranged at equal intervals along the length direction of the connecting rod (6).

3. The anti-climbing device adapted to various types of tower cranes according to claim 2, characterized in that: A first telescopic rod (8) is installed in the spring (7), and two ends of the first telescopic rod (8) are respectively fixedly connected to the connecting rod (6) and the supporting rod (4).

4. An anti-climbing device adapted to various types of tower cranes according to any one of claims 1 to 3, characterized in that: The support mechanism further comprises a first reinforcing rod (9) and a second reinforcing rod (10); a plurality of the first reinforcing rods (9) are crisscrossedly arranged on the four support rods (4), and the two ends of the first reinforcing rod (9) are respectively fixedly connected to two opposite support rods (4); a plurality of the second reinforcing rods (10) are spaced apart and arranged on two sleeves (5) on the same side, and the two ends of the second reinforcing rod (10) are respectively fixedly connected to the two sleeves (5); and the mesh plate (1) is fixedly connected to the support rods (4), the sleeves (5), the first reinforcing rods (9) and the second reinforcing rods (10) via a locking mechanism (3).

5. The anti-climbing device adapted to various types of tower cranes according to claim 4, characterized in that: The support rod (4) and the sleeve (5) are both provided with a plurality of limiting grooves (11) along their length direction, and the first reinforcing rod (9) and the second reinforcing rod (10) are both placed in the limiting grooves (11).

6. The anti-climbing device adapted to various types of tower cranes according to claim 5, characterized in that: The locking mechanism (3) comprises a plurality of second telescopic rods (31), a plurality of compression springs (32) and a plurality of square pressure plates (33). The mesh plate (1) is provided with a plurality of square holes (12) that match the square pressure plates (33). The square holes (12) correspond to the square pressure plates (33) one by one. One end of the second telescopic rod (31) is welded to the support rod (4), the sleeve (5), the first reinforcing rod (9) or the second reinforcing rod (10), and the other end is rotatably connected to the square pressure plate (33). The compression spring (32) is sleeved outside the second telescopic rod (31). One end of the compression spring (32) is fixedly connected to the support rod (4), the sleeve (5), the first reinforcing rod (9) or the second reinforcing rod (10), and the other end is fixedly connected to the square pressure plate (33) via a rotating bearing. When the long side of the square pressure plate (33) is parallel to the long side of the square hole (12), the mesh plate (1) and the support rod (4), the sleeve (5), the first reinforcing rod (9) or the second reinforcing rod (10) are movably connected. Otherwise, the mesh plate (1) and the support rod (4), the sleeve (5), the first reinforcing rod (9) or the second reinforcing rod (10) are fixedly connected.

Images