CN211998568U

CN211998568U - Standard knot and tower crane

Info

Publication number: CN211998568U
Application number: CN202020390562.2U
Authority: CN
Inventors: 赵圣佞
Original assignee: Hunan Zhonglian Zhongke Construction Hoisting Machinery Co ltd; Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Hunan Zhonglian Zhongke Construction Hoisting Machinery Co ltd; Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-24
Anticipated expiration: 2030-03-24

Abstract

The utility model relates to a tower crane component discloses a standard festival, including pylon (1), cat ladder (2) and platform (3), platform (3) set up the bottom of pylon (1), cat ladder (2) set up the inside of pylon (1), and the bottom of this cat ladder (2) is located the platform (3) near on the region, the bottom of pylon (1) is equipped with diagonal brace piece (16), cat ladder (2) slope sets up, and the bottom of this cat ladder (2) supports on diagonal brace piece (16); the periphery of the platform (3) is provided with a safety baffle (31). The utility model discloses a standard festival simple structure, the climbing is convenient, safety. The utility model also discloses a tower crane who contains this standard festival.

Description

Standard knot and tower crane

Technical Field

The utility model relates to a tower crane component, concretely relates to standard festival. Furthermore, the utility model discloses still relate to a tower crane.

Background

The tower crane is a common hoisting device in the engineering construction process. When a constructor carries out high-altitude operation, the constructor generally goes up and down the high-altitude operation platform through a tower crane. The tower crane is internally provided with a ladder stand for an operator to climb up and down. The tower crane is usually formed by connecting a plurality of standard sections with the same structure, and the crawling ladders in the standard sections are mutually matched to form a channel for constructors to go up and down. A small platform is usually arranged in the standard section and is used for temporary rest during the climbing process of constructors, so that the constructors have enough physical strength to climb to high altitude.

The ladder stand of the existing standard section of the tower crane usually adopts a vertical structure, namely the ladder stand and a platform form an angle of 90 degrees. This kind of vertical type cat ladder climbing is comparatively hard, and the security of climbing is lower, needs to set up safety device such as protective shroud on the upper portion of cat ladder. Especially when tower crane's height is higher, constructor's the upper and lower can lead to serious physical demands for constructor's climbing ability descends, and easily causes the safety risk. And less rest platform sets up the one side at the cat ladder usually, does not have protective structure on the platform, and easy foot is stepped on smoothly when constructor physical power descends, causes the safety risk. Although some standard sections adopting the inclined ladder stand also exist, the ladder stand and the platform matched with the ladder stand are complex in structure, the weight of the standard sections is additionally increased, and the bearing and high-altitude building of the tower crane are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a tower crane standard festival is provided, simple structure, the climbing is convenient, safety.

The utility model discloses a further technical problem that will solve provides a tower crane, builds the convenience, and the climbing is convenient, safe.

In order to solve the technical problem, an aspect of the present invention provides a standard knot, including a tower, a ladder stand and a platform, wherein the platform is disposed at the bottom of the tower, the ladder stand is disposed inside the tower, the bottom of the ladder stand is located in a region adjacent to the platform, a diagonal support member is disposed at the bottom of the tower, the ladder stand is disposed in an inclined manner, and the bottom of the ladder stand is supported on the diagonal support member; safety baffles are arranged on the periphery of the platform.

Preferably, the tower further comprises chords, diagonal web members, horizontal web members and cross bars; the chords are vertically arranged, the horizontal web members are connected between the adjacent chords to form a frame-shaped structure, the inclined web members are connected between opposite angles of the frame-shaped structure, the cross rods are horizontally connected between the chords and the inclined web members, and the inclined supporting members are connected to the bottoms of the two nonadjacent chords; the top of the ladder stand is fixed on the top of the tower frame in the chord rod area which is not connected with the diagonal support piece. Through this preferred technical scheme, chord member, oblique web member and horizontal web member interconnect have formed the bearing structure of pylon provides support intensity for the pylon. The oblique web members, the horizontal web members and the cross bars further form a periphery protection structure of the tower, and constructors can be prevented from falling from the periphery of the tower. The inclined support piece can support the ladder stand, can also enhance the inclined connection strength of the tower and improve the stability of the tower. The fixed position at the top of the ladder stand is convenient for constructors to climb up a platform with a standard knot from the top of the ladder stand and also convenient for constructors to use the tower as a support when climbing on the ladder stand.

Preferably, the tower still includes the bar rest, the bar rest is vertical to be set up the cat ladder both sides horizontal web member with between the oblique web member. In this preferred technical scheme, the grab bar supplies constructor to be in prop up when climbing on the cat ladder and lean on the use, can alleviate climbing personnel's shank heavy burden, improves the stability and the security of climbing.

Preferably, the chords are four in a square arrangement, and the horizontal web members are respectively connected between the tops, the middle parts and the bottoms of two adjacent chords; the diagonal bracing member is connected to the bottoms of a set of opposite chords. Through the preferred technical scheme, the tower structure formed by the four chords arranged in the square shape is simple, and the stability is high. Two adjacent between the chord member the connection structure of horizontal web member with oblique web member connection structure cooperatees, has formed the equal higher bearing structure of support intensity and stability. The diagonal support members connected to opposite corners of the square improve the stability of the square structure while supporting the ladder stand.

Preferably, the top of the ladder stand is connected with a first lug plate, and the first lug plate is connected to two adjacent horizontal web members on the top of the tower frame; the bottom of the ladder stand is connected with a second ear plate, and the second ear plate is connected with the middle part of the inclined support piece. Through the preferable technical scheme, the bottom of the ladder stand is positioned close to the middle of the bottom of the tower and is positioned in the area adjacent to the platform, so that a constructor can conveniently go up and down the ladder stand from the platform; the top of the ladder stand is positioned at the corner part on one side of the top of the tower, so that the ladder stand can be inclined, and a constructor can go up and down the platform of the upper standard knot. The arrangement of the first ear plate and the second ear plate is not only beneficial to the fixing of the ladder stand, but also convenient for adjusting the inclination angle of the ladder stand.

Preferably, one end of the first ear plate is connected to the top of the ladder stand through a connecting bolt, and the other end of the first ear plate is welded on the horizontal web member; one end of the second ear plate is connected to the bottom of the ladder stand through a connecting bolt, and the other end of the second ear plate is welded to the middle of the diagonal support piece. In this preferred technical scheme, welded connection's joint strength and connection stability are all than higher, and bolted connection's connection is all comparatively convenient with the dismantlement, and is convenient for adjust the hookup location.

Preferably, the platform is arranged at the upper part of one side of the diagonal support member and is respectively connected to two adjacent horizontal web members at the bottom of the tower. In this preferred embodiment, the platform is fixed to two adjacent horizontal web members to form a fixed structure. The diagonal support piece supports the middle part of the platform, so that the strength of the platform is improved.

Preferably, a triangular gap is formed between the chord connected with the diagonal stay and the platform. In this preferred embodiment, the triangular gap can reserve a sufficient space inside the chord member, so as to prevent the platform from interfering with the connecting member of the chord member for connecting different standard knots and affecting the assembly of the standard knots.

Preferably, the included angle formed by the ladder stand and the bottom surface of the tower is 70-80 degrees. In the preferred technical scheme, when the ladder stand and the horizontal plane form an included angle of 70-80 degrees, the stress state of a human body accords with the principle of ergonomics, fatigue is not easy to generate during climbing, and the climbing is labor-saving.

The utility model discloses the second aspect provides a tower crane, and this tower crane includes the utility model discloses the standard festival that the first aspect provided.

Through the technical scheme, the utility model discloses a cat ladder slope in the standard festival sets up for constructor's climbing is more convenient, laborsaving. Meanwhile, the climbing safety is improved, so that safety facilities such as guard rings do not need to be arranged on the ladder stand, and the weight of the standard knot is reduced. The bottom sprag of cat ladder is on the piece is supported to one side for the support of cat ladder is comparatively firm, and the climbing is comparatively convenient, has also alleviateed bearing structure's weight. The safety shield that the platform periphery set up can prevent that the foot from landing on the platform when constructor from the platform, has improved the security of climbing.

The utility model discloses a tower crane is owing to adopted the utility model discloses a standard festival, therefore the dead weight is lighter, builds comparatively conveniently, and the climbing is also more convenient, safe.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic side view of one embodiment of a tower crane standard section of the present invention;

FIG. 2 is a schematic top view of an embodiment of a tower crane standard section of the present invention;

FIG. 3 is a schematic perspective view of one embodiment of a tower crane standard section of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the tower crane of the present invention.

Description of the reference numerals

1 pylon 11 chord

12 inclined web member and 13 horizontal web member

14 crossbar 15 grab rail

16 diagonal bracing piece 2 ladder

21 first ear plate 22 second ear plate

3 platform 31 safety barrier

Detailed Description

In the present invention, in the case where no explanation is given to the contrary, the position or positional relationship indicated by the use of the positional words such as "up and down" is based on the position or positional relationship of the standard knot or the tower crane in normal use of the present invention.

In the present description, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, so that the features defined "first", "second" may explicitly or implicitly include one or more of said features.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly, and for example, the term "connected" may be a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 to 3, one embodiment of a standard knot of the present invention comprises a tower 1, a ladder 2 and a platform 3. The platform 3 is arranged at the bottom of the tower 1. The ladder 2 is obliquely arranged in the tower 1 and communicated with the top of the tower 1 from the bottom of the tower 1. The bottom of cat ladder 2 sets up the neighborhood at platform 3, is convenient for constructor from platform 3 cat ladder. Platform 3 uses the material that can bear human weight to make, the utility model discloses do not injecing the structural style of platform 3, it can be network structure, can be platelike structure, also can be strip seam column structure. The periphery of platform 3 is provided with safety shield 31, and safety shield 31's height is higher than the platform slightly for platform 3 has formed a relative low concave area, is difficult for following platform 3 landing when constructor's foot steps on platform 31. The bottom of the tower frame 1 is provided with a diagonal support piece 16, the diagonal support piece 16 can be a strip-shaped structure with certain support strength, the diagonal support piece 16 penetrates through the inside of the tower frame 1, the bottom of the ladder stand 2 is supported on the diagonal support piece 16, and the ladder stand 2 is supported by the diagonal support piece 16, so that the support structure is simplified, and the weight of a standard knot is reduced.

In some embodiments of the standard knot of the present invention, as shown in fig. 1 to 3, the tower 1 is formed by connecting chords 11, diagonal web members 12 and horizontal web members 13. The vertical setting of chord member 11, horizontal web member 13 are connected and are formed the frame structure between adjacent chord member 11, and oblique web member 12 is connected between a diagonal angle of frame structure, strengthens the stability of frame structure to can improve the bearing capacity of frame. Horizontal connection has horizontal pole 14 between chord 11 and the oblique web member 12 of neighbouring, and horizontal pole 14 sets up as required in the triangle-shaped frame of constituteing by chord 11, oblique web member 12 and horizontal web member 13, can reduce frame hole area, forms certain protection to climbing personnel. The diagonal brace 16 is connected between two chords 11 that are not adjacent at the bottom of the tower 1 such that the diagonal brace 16 passes through the interior of the tower 1. The top of the ladder 2 is fixed to the top region of the chord 11, which is not connected to the diagonal support 16, and to two horizontal web members 13 attached to the top of the chord 11.

As an embodiment of the standard knot of the present invention, as shown in fig. 1 and 3, a grab bar 15 is further provided on the tower 1 on both sides of the ladder 2. The grab bar 15 is vertically arranged between the horizontal web member 13 and the diagonal web member 12. Preferably set up in the both sides of the top relative position of the lower part of pylon 1 and cat ladder 2, like this, when a plurality of the utility model discloses a standard festival assembles from top to bottom, and the climbing personnel on the cat ladder 2 upper portion of next standard festival can hold the handrail 15 of last standard festival, improve the stability of climbing.

In some embodiments of the standard knot of the present invention, as shown in fig. 1 to 3, there are four chords 11, and the four chords 11 are arranged in a square on a horizontal plane to form a tower 1 having a square cross section. The horizontal web members 13 are connected between two adjacent chords 11, respectively, to form four sides of a square. Three horizontal web members 13 are connected between each pair of adjacent chords 11, and the three horizontal web members 13 are respectively connected to the top, the middle and the bottom of the chords 11. Horizontal web members 13 connected between the four chords 11 form the four sides of a square at the top, middle and bottom of the tower 1, respectively. Of course, more horizontal web members 11 may be disposed at different positions on the tower frame 1, or the horizontal web members 13 connected between different chord members 11 may be disposed at different horizontal positions, but in this embodiment, the horizontal web members 13 are disposed in such a manner that the mechanical strength of the tower frame 1 is higher, and the self weight of the tower frame 1 is not too large. The diagonal supports 16 are attached to the chords 11 at a set of diagonal positions of the square at the bottom of the tower 1 so that the diagonal supports 16 pass through the middle of the square to facilitate the setting up of the ladder 2. Only set up diagonal bracing piece 16 in the bottom of pylon 1 simultaneously, can also form the reinforcement to the square of pylon 1 bottom, after the standard festival assembles, can also form the reinforcement to the square at the top of the standard festival of equipment in its lower part, when the at utmost performance reinforcing effect, alleviateed the utility model discloses a weight of standard festival.

In some embodiments of the standard knot of the present invention, as shown in fig. 2 and 3, the top of the ladder 2 is fixedly connected to one end of two first ear plates 21, and the other ends of the two first ear plates 21 are respectively fixedly connected to two horizontal web members 13 adjacent to the top of the tower 1, so that the top of the ladder 2 is fixed to the corner of the tower 1. The bottom of the ladder stand 2 is fixedly connected with one end of the two second ear plates 22, and the other ends of the two second ear plates 22 are respectively fixed at the middle part of the diagonal support piece 16, so that the bottom of the ladder stand 2 is fixed at the middle part of the diagonal support piece 16. The arrangement of the ladder stand 2 enables a climber to conveniently climb up the bottom of the ladder stand 2 from the adjacent platform 3, and is also convenient for the climber to climb up the platform 3 at the bottom of one standard knot from the top of the ladder stand 2. The connection of the first and

second ear plates

21, 22 to the ladder 2, the horizontal web 13 or the diagonal support 16 may be any of the various possible fixed connections commonly used in the art, including but not limited to welding, riveting, fastening or bolting.

As an embodiment of the standard knot of the present invention, the ladder 2 is connected to the first ear plate 21 and the second ear plate 22 by connecting bolts, which facilitates the detachment and the adjustment of the fixed position. The first ear plate 21 and the horizontal web member 13 are connected to each other by welding, and the second ear plate 22 and the diagonal support member 16 are connected to each other by welding, so that the connection firmness is high.

In some embodiments of the standard knot of the present invention, the platform 3 is disposed beside the ladder 2 and on the upper portion of one side of the diagonal member 16, the diagonal member 16 supports the middle of the platform 3, the platforms 3 on both sides of the diagonal member 16 are respectively fixed on two adjacent horizontal web members 13 at the bottom of the tower 1, and the horizontal web members 13 are fixed and supported on two sides of the platform 3. The platform 3 can adopt a plate-shaped platform structure, a net-shaped platform mechanism or a platform structure formed by arranging a plurality of rod pipes in a clearance mode. The platform 3 in this embodiment adopts a metal net with light dead weight and sufficient strength as the platform, and the periphery of the platform 3 is provided with a safety barrier 31. The lower part of the safety barrier 31 is connected to the platform 3 or the lower part of the safety barrier 31 forms a bend supporting the edge of the platform 3.

As a preferred embodiment of the standard knot of the present invention, a triangular space is left between the platform 3 and the chord 11 connected to the diagonal stay 16. The triangular gaps facilitate interconnection between chords 11 of different standard knots when assembled between different standard knots.

In some embodiments of the standard knot of the present invention, the inclined ladder 2 forms an angle of 70-80 ° with the bottom surface of the tower 1. The specific setting may be 70 °, 72 °, 75 °, 78 °, 80 ° or any value between the above-mentioned angle values. The cat ladder angle that this embodiment set up is when constructor scrambles, and human atress situation is more reasonable, and more laborsaving during constructor scrambles, and the human body is difficult to produce tired.

The utility model discloses a standard festival, the atress state when cat ladder 2's slope setting mode has changed constructor climbing has improved the security of climbing to make the climbing process more laborsaving. The included angle of 70-80 degrees formed by the included angle and the bottom surface of the tower frame 1 is beneficial to the arrangement of the ladder stand 2 in the tower frame 1, the stress condition of climbing personnel is optimized, the climbing safety and convenience are further improved, and particularly, the included angle of 75 degrees is the best included angle. The inclined support part 16 is arranged to support the ladder stand 2 with a simple structure, and can support the platform 3, thereby simplifying the structure of the standard knot and reducing the dead weight thereof. The peripheral safety shield 31 of platform 3 sets up, and when can prevent constructor from climbing ladder 2 from top to bottom, the foot has improved the security of climbing from platform 3's marginal landing.

The utility model discloses an implementation of tower crane, its tower body is by at least one the utility model discloses any kind of implementation's standard festival equipment forms. Fig. 4 shows a tower section of a tower crane assembled from two standard sections according to the present invention. The upper standard knot and the lower standard knot are assembled together through a connecting structure on the chord member 11, the ladder stand 2 is obliquely arranged in the middle of the bottom of the standard knot and at one corner of the top, the bottom of the ladder stand 2 is close to one side of the platform 3, and the top of the ladder stand 2 is close to one side of the platform 3 of the previous standard knot.

When the constructor climbs upwards, the constructor can conveniently climb up the ladder stand 2 through the platform 3 because the platform 3 is close to the bottom of the ladder stand 2. Because cat ladder 2 slope sets up, constructor safety, laborsaving when climbing on cat ladder 2. When the constructor climbs the upper part of the ladder stand 2, the hand part can hold the grab rail 15 of the previous standard knot, and the climbing safety of the constructor is improved. Because the top of the ladder stand 2 is close to the platform 3 of the previous standard section, constructors can conveniently climb on the platform 3 of the previous standard section at the top of the ladder stand 2 of the next standard section and climb on the ladder stand 2 of the previous standard section continuously by the platform 3. Because must pass through platform 3 at the climbing in-process, make things convenient for constructor at the rest of climbing in-process, avoided constructor to look after physical power, the potential safety hazard that the blind climbing brought often appearing climbing traditional vertical type cat ladder of climbing simultaneously.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an implementation," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present disclosure, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. A standard knot comprises a tower (1), a ladder (2) and a platform (3), wherein the platform (3) is arranged at the bottom of the tower (1), the ladder (2) is arranged inside the tower (1), and the bottom of the ladder (2) is positioned at the adjacent area of the platform (3), and is characterized in that a diagonal support piece (16) is arranged at the bottom of the tower (1), the ladder (2) is obliquely arranged, and the bottom of the ladder (2) is supported on the diagonal support piece (16); the periphery of the platform (3) is provided with a safety baffle (31).

2. A standard knot according to claim 1, characterised in that the tower (1) further comprises chords (11), diagonal web members (12), horizontal web members (13) and cross-bars (14); the chords (11) are vertically arranged, the horizontal web members (13) are connected between the adjacent chords (11) to form a frame-shaped structure, the inclined web members (12) are connected between opposite angles of the frame-shaped structure, the cross rod (14) is horizontally connected between the chords (11) and the inclined web members (12), and the inclined supporting members (16) are connected to the bottoms of the two nonadjacent chords (11); the top of the ladder stand (2) is fixed on the top of the tower (1) in the area of the chord (11) which is not connected with the diagonal support (16).

3. A standard knot according to claim 2, characterised in that the tower (1) further comprises a grab bar (15), which grab bar (15) is arranged vertically between the horizontal web members (13) and the diagonal web members (12) on both sides of the ladder (2).

4. The standard knot of claim 2, wherein the chords (11) are four in a square arrangement, and the horizontal web members (13) are connected between the top, middle and bottom of two adjacent chords (11), respectively; the diagonal bracing piece (16) is connected to the bottom of a group of opposite chords (11).

5. A standard knot according to claim 2, characterized in that a first ear plate (21) is connected to the top of the ladder (2) and connected to two horizontal web members (13) adjacent to the top of the tower (1) via the first ear plate (21); the bottom of the ladder stand (2) is connected with a second ear plate (22) and is connected with the middle part of the inclined supporting piece (16) through the second ear plate (22).

6. A standard knot according to claim 5, characterised in that the first ear plate (21) is connected at one end to the top of the ladder (2) by means of a connecting bolt and at the other end is welded to the horizontal web member (13); one end of the second ear plate (22) is connected to the bottom of the ladder stand (2) through a connecting bolt, and the other end of the second ear plate is welded to the middle part of the inclined support piece (16).

7. A modular segment according to claim 2, characterized in that the platform (3) is arranged on the upper part of one side of the diagonal support (16) and is connected to two adjacent horizontal web members (13) at the bottom of the tower (1).

8. The standard knot of claim 7, wherein the chord (11) connected to the diagonal stay (16) has a triangular clearance from the platform (3).

9. A modular segment according to any one of claims 1-8, characterised in that the ladder (2) is angled with respect to the bottom surface of the tower (1) by an angle of 70-80 °.

10. A tower crane, comprising a standard knot according to any one of claims 1 to 9.