Adjustable attachment pull rod of tower crane

Abstract

The utility model relates to the technical field of tower cranes, and particularly discloses a tower crane adjustable attachment pull rod which comprises a lattice type pull rod connector, a supporting rod and an adjusting assembly, the lattice type pull rod connector is detachably connected to one end of the supporting rod, the other end of the supporting rod is detachably connected with the adjusting assembly, and the adjusting assembly comprises a fixed pull rod section and a telescopic pull rod section. The telescopic pull rod section is sleeved with the fixed pull rod section, adjusting lead screws are arranged at the end of the lattice type pull rod connector and the end of the telescopic pull rod section respectively, square boxes are arranged at the ends of the adjusting lead screws respectively, and the square boxes are used for being connected with a tower crane and lug plates embedded in an external building respectively. According to the scheme, the problem that the length of an existing lattice type attachment pull rod cannot be adjusted according to the construction site condition can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, in particular to an adjustable attachment pull rod of a tower crane. Background Art

[0002] Tower cranes are one of the commonly used equipment in construction sites. They are used to vertically transport various building materials and workers, which can greatly improve the efficiency of construction. The attachment tie rod of the tower crane fixes the crane to the structure of the building. It is an important component used to connect and fix the cantilever beam and main beam of the crane. It plays a role of attachment, rigid support and stability. It can reduce the swing amplitude of the cantilever beam and prevent the crane from tilting or shaking, thereby improving the safety of the crane's work. It is an important component to ensure construction safety.

[0003] The conventional wall-attached tie rods of tower cranes are made of channel steel. When the wall-attached force is large, the cost of processing the tie rods in this way is relatively high. The Chinese utility model patent with the announcement number CN207618925U discloses a new type of lattice-type wall-attached tie rod structure, including a tie rod head (i.e., the lattice tie rod connector in this scheme) and a rod (strut). The number of the tie rod heads is two, and the two tie rod heads are fixedly installed on both sides of the rod; the rod includes angle steel, oblique tie plates, transverse tie plates and pasting plates. The number of angle steels is four, and the oblique tie plates and transverse tie plates are fixedly spliced ​​with four angle steels. It is fixedly connected to the two sides of the pier through pin holes, and the four installed angle steels are fixed by oblique tie plates and transverse tie plates. The strength and stability of the rod are increased by increasing the turning radius, thereby achieving the purpose of cost saving; the overall structure is stable and cost saving.

[0004] The defect of the above scheme is that: due to the various types of cranes on the market, the construction buildings and site conditions are different, and the installation positions of various cranes on site are also different. Therefore, the installation position and length of the attachment rod connecting the tower crane and the building must also be adjusted according to the site conditions. The strength of the lattice attachment rod in the scheme is improved, but its length cannot be adjusted according to actual requirements. If attachment rods of different lengths are made according to different requirements, the construction cost is high. If the lattice attachment rod is directly cut and modified, the construction period will be affected, and the stability of the structure will be at risk and the installation will be cumbersome and inconvenient. Utility Model Content

[0005] The utility model provides an adjustable attachment tie rod for a tower crane, so as to solve the problem that the length of the existing lattice-type attachment tie rod cannot be adjusted according to the conditions of the construction site.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is as follows: an adjustable attachment tie rod of a tower crane, comprising a lattice tie rod connector and a support rod, wherein the lattice tie rod connector is detachably connected to the end of the support rod, and a detachable adjustment component is connected to the end of the support rod away from the lattice tie rod connector, wherein the adjustment component comprises a fixed tie rod section and a telescopic tie rod section, wherein the telescopic tie rod section is sleeved in the fixed tie rod section, and the upper and lower end surfaces of the telescopic tie rod section and the fixed tie rod section are respectively provided with a plurality of through holes along the length, and a pin can be passed through the through hole for fixing the telescopic tie rod section and the fixed tie rod section;

[0007] The ends of the lattice pull rod joint away from the telescopic pull rod section are respectively threadedly connected with adjusting screws, and the opposite ends of the two adjusting screws are respectively threadedly connected with square boxes, and the square boxes are used to be fixed to the ear plates embedded in the external building.

[0008] The basic principle of this scheme is: to modify the existing lattice tie rod, retain the support rod and one of the connecting parts of the lattice tie rod, and change the other connecting part of the support rod into a telescopic adjustment component. The telescopic tie rod section in the adjustment component slides in the fixed tie rod section to retract and extend the length. After the length is determined, the two stretching rods are connected as a whole through the pin shaft, and then fine-tuned through the adjusting screw rods at the ends. The square boxes at the ends of the two adjusting screw rods are used to connect the tower body and the building respectively, so that the attached tie rod is horizontally supported between the tower body and the building.

[0009] The beneficial effects of this program are:

[0010] 1. The existing attachment tie rod is designed into a lattice structure to improve the structural strength, but the length cannot be adjusted according to the site requirements. This solution adds an adjustment component on the basis of the lattice structure, so that the length of the entire attachment tie rod can be adjusted to adapt to various construction conditions. At the same time, the adjustment component is detachable and can be directly installed on the existing lattice tie rod, saving construction costs.

[0011] Furthermore, a double shear structure is provided on the opposite end of the lattice tie rod joint and the support rod, and the double shear structure is distributed on the four vertices of the end surface, and the double shear structure includes a large double-ear plate, a small ear plate, a connecting shaft, and a split pin, and the connecting shaft can pass through the large double-ear plate and the small ear plate at the same time, and the split pin can horizontally pass through the bottom end of the connecting shaft to limit the connecting shaft in the large double-ear plate and the small ear plate. The double shear structure realizes the detachability of the adjustment component, is easy to install, and has a simple structure.

[0012] Furthermore, the fixed tie rod section and the telescopic tie rod section respectively include two C-shaped steels and a plurality of steel sheets, the two C-shaped steels are arranged with their openings facing each other, the plurality of steel sheets are arranged at intervals along the length of the C-shaped steels and connect the two C-shaped steels into one, the steel sheets are arranged symmetrically along the upper and lower end surfaces of the C-shaped steels, the through holes correspond to the steel sheets one by one, and the through holes are all located at the center of the steel sheets. The fixed tie rod section adopts a structure with both ends through, which is conducive to moving the telescopic tie rod section as a whole into the fixed tie rod section.

[0013] Furthermore, the number of steel sheets on the fixed tie rod section is two groups, and the number of steel sheets on the telescopic tie rod section is five groups.

[0014] Furthermore, two pin holes are respectively opened along the length of the front and rear side walls of the square box to connect the ear plates embedded in the building wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the square box 1 in this embodiment;

[0017] Figure 3 Schematic diagram of adjusting screw rod 2 in this embodiment;

[0018] Figure 4 Schematic diagram of the lattice tie rod connector 3 in this embodiment;

[0019] Figure 5 is a schematic diagram of the support rod 4 in this embodiment;

[0020] Figure 6 Schematic diagram of the pin 7 and the cotter pin 8 in this embodiment;

[0021] Figure 7 It is a side view of the fixed tie rod section 5 in this embodiment;

[0022] Figure 8 It is a top view of the joint part between the fixed tie rod section and the telescopic tie rod section;

[0023] Fig. 9 It is a schematic diagram of the telescopic pull rod section 6. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The figure marks in the drawings of the specification include: square box 1, first through hole 101, adjusting screw rod 2, lattice pull rod connector 3, first large double ear plate 31, support rod 4, small ear plate 41, second large double ear plate 42, fixed pull rod section 5, first steel sheet 51, telescopic pull rod section 6, second steel sheet 61, internal thread 62, connecting pin 7, cotter pin 8.

[0026] The embodiment is basically as shown in the attached Figure 1 To Attachment Fig. 9 As shown:

[0027] An adjustable attachment tie rod of a tower crane comprises, from left to right, a square box 1, an adjusting screw rod 2, a lattice tie rod connector 3, a support rod 4, a fixed tie rod section 5, and a telescopic tie rod section 6.

[0028] like Figure 2 As shown, the left end of the square box 1 is open, and the right end of the square box 1 is provided with an axially horizontal internal threaded opening. Two first through holes 101 are sequentially provided along the length of the two opposite side walls of the square box 1. A pin is passed through the first through hole 101 to fix the attachment rod to the ear seat of the peripheral device.

[0029] The screw rod 2 with the threaded pin axially horizontally arranged at the right end of the square box 1 is as follows: Figure 3 As shown, both ends of the adjusting screw rod 2 are respectively processed with external threads, and a through hole is provided in the middle of the adjusting screw rod 2, through which a C-shaped steel can be externally connected as needed, thereby supporting the end of the attached pull rod.

[0030] The right end of the adjusting screw rod 2 is threadedly connected to the lattice pull rod connector 3, and the left end of the lattice pull rod connector 3 is provided with an internal thread groove matching the adjusting screw rod 2. The right end of the lattice pull rod connector 3 is respectively provided with a first large double-ear plate 31 at the four vertices, and the first large double-ear plate 31 can be connected to the support rod 4 at the right end.

[0031] The support rod 4 is of a lattice structure, and small ear plates 41 are respectively arranged at the four vertices of the left end of the support rod 4. After the support rod 4 is aligned with the lattice tie rod connector 3, the first large double ear plate 31 and the small ear plate 41 form a double shear structure, and the connecting pin 7 is passed through the two ear plates at the same time, and the lower end of the connecting pin 7 is laterally installed into the cotter pin 8, and then the ends of the cotter pin 8 are broken apart so that the cotter pin 8 is stuck at the lower end of the connecting pin 7, and the connecting pin 7 is prevented from slipping out of the two ear plates.

[0032] The second large double-ear plate 42 is also arranged at the four vertices of the right end of the support rod 4. The right end of the support rod 4 is connected to the fixed tie rod section 5. The left end of the fixed tie rod section 5 is provided with a small ear plate, and the second large double-ear plate 42 and the small ear plate are connected by a double shear structure. The left end of the fixed tie rod section 5 is connected to the outside, and the right end of the fixed tie rod section 5 is a square tube welded by two C-shaped steels and a first steel sheet 51. The two C-shaped steels are arranged back to back and horizontally, and a gap is left in the middle of the two C-shaped steels facing each other. A number of square first steel sheets 51 are welded at intervals along the length of the upper and lower surfaces of the C-shaped steel, that is, the first steel sheet 51 is overlapped on both sides of the gap, so that the first steel sheet 51 and the C-shaped steel are connected together to form the fixed tie rod section 5. The first steel sheets 51 on the upper and lower ends of the fixed tie rod section 5 are arranged symmetrically, and a vertical through hole is machined at the center of the first steel sheet 51.

[0033] The fixed tie rod section 5 is internally sleeved with the telescopic tie rod section 6, which is also welded by two C-shaped steels and a plurality of second steel sheets 61. The outer diameter of the telescopic tie rod section 6 matches the inner diameter of the fixed tie rod section 5, so that the telescopic tie rod section 6 can slide left and right of the fixed tie rod section 5. Fig. 9 As shown, the number of the second steel sheets 61 of the telescopic tie rod section 6 in this embodiment is 5 groups. Align the first steel sheet 51 of the fixed tie rod section 5 with the second steel sheet 61 of the telescopic tie rod section 6, use a pin to pass through the through holes of the first steel sheet 51 and the second steel sheet 61 at the same time, and then lock the end of the pin, so that the fixed tie rod section 5 and the telescopic tie rod section 6 can be connected and fixed. The right end of the telescopic tie rod section 6 is provided with an internal thread 62 arranged along the axial direction, and the internal thread is threadedly connected to the adjusting screw 2, and the right end of the adjusting screw 2 is threadedly connected to a square box 1.

[0034] The specific implementation process is as follows:

[0035] After each component is moved to the designated location, it is assembled. The entire attachment rod is hoisted horizontally to the position where it needs to be installed. During installation, the square box 1 at the left end is first fixed to the tower crane, the extension degree of the telescopic tie rod section 6 is adjusted according to the required length, the fixed tie rod section 5 is connected and fixed to the telescopic tie rod section 6, and then the square box 1 at the right end is connected to the ear plate embedded in the external building. The adjustment screw rods 2 at both ends can be fine-tuned during this process. Multiple attachment rods in different directions are set around the tower crane, and the tower crane can be fixed from different directions. At the same time, in the process of erecting the tower crane upward, multiple layers of attachment rods are set along different heights of the tower crane to ensure the circumferential and longitudinal stability of the tower crane.

[0036] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An adjustable attachment tie rod for a tower crane, comprising a lattice tie rod connector and a support rod, characterized in that: The lattice tie rod connector is detachably connected to the end of the support rod, and a detachable adjustment assembly is connected to the end of the support rod away from the lattice tie rod connector, and the adjustment assembly includes a fixed tie rod section and a telescopic tie rod section, and the telescopic tie rod section is sleeved in the fixed tie rod section. The upper and lower end surfaces of the telescopic tie rod section and the fixed tie rod section are respectively provided with a plurality of through holes along the length, and the pins can pass through the through holes for fixing the telescopic tie rod section and the fixed tie rod section; The ends of the lattice pull rod joint away from the telescopic pull rod section are respectively threadedly connected with adjusting screws, and the opposite ends of the two adjusting screws are respectively threadedly connected with square boxes, and the square boxes are used to be fixed to the ear plates embedded in the external building.

2. The adjustable attachment tie rod of a tower crane according to claim 1, characterized in that: A double shear structure is provided on the opposite end of the lattice pull rod connector and the support rod, and the double shear structure is distributed on the four vertices of the end face. The double shear structure includes a large double-ear plate, a small ear plate, a connecting shaft, and a cotter pin. The connecting shaft can pass through the large double-ear plate and the small ear plate at the same time, and the cotter pin can horizontally pass through the bottom end of the connecting shaft to limit the connecting shaft within the large double-ear plate and the small ear plate.

3. The adjustable attachment tie rod of a tower crane according to claim 2, characterized in that: The fixed tie rod section and the telescopic tie rod section respectively include two C-shaped steels and a number of steel sheets. The openings of the two C-shaped steels are arranged back to back. The several steel sheets are arranged at intervals along the length of the C-shaped steels and connect the two C-shaped steels into one. The steel sheets are symmetrically arranged along the upper and lower end surfaces of the C-shaped steels. The through holes correspond to the steel sheets one by one, and the through holes are all located at the center of the steel sheets.

4. The adjustable attachment tie rod of a tower crane according to claim 3, characterized in that: The number of steel sheets on the fixed tie rod section is two groups, and the number of steel sheets on the telescopic tie rod section is five groups.

5. The adjustable attachment tie rod of a tower crane according to claim 4, characterized in that: Two pin holes are respectively provided along the length of the front and rear side walls of the square box.

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