Pull rod tensioning mechanism for supporting tower body

Abstract

The utility model discloses a pull rod tensioning mechanism for supporting a tower body, the pull rod tensioning mechanism comprises a pull rod assembly and a tensioning oil cylinder, the tensioning oil cylinder comprises an oil cylinder body, a piston rod piece and a locking nut, the piston rod piece is movably arranged in the oil cylinder body, two ends of the piston rod piece extend out of the oil cylinder body, a first end of the piston rod piece is connected with the pull rod assembly, and a second end of the piston rod piece is connected with the locking nut. The first end of the tensioning oil cylinder is provided with an oil cylinder body, the second end of the tensioning oil cylinder is provided with an external threaded rod body, and the locking nut is sleeved on the external threaded rod body and can be screwed to abut against the oil cylinder body, so that after the oil cylinder body of the tensioning oil cylinder is arranged on the tower crane chassis / fixed foundation and the pull rod assembly is connected with the upper end of the tower body, the tensioning oil cylinder can be firstly controlled to tension and pull the pull rod assembly; and the locking nut is adjusted under the condition that the piston rod piece moves till the tensioning force reaches the preset value, so that the locking nut is screwed to abut against the oil cylinder body, the tensioning force on the piston rod piece can be distributed to the oil cylinder body, the size of the oil cylinder can be obviously reduced, and the purpose of reducing the cost is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting machinery, and in particular relates to a tensioning mechanism of a pull rod for supporting a tower body. Background Art

[0002] When the operating height of a tower crane exceeds the independent height, it is generally necessary to use an attachment device to connect the tower body to the building to ensure the stability of the tower crane. However, there are no buildings near the installation location of some tower cranes (for example, wind power jib tower cranes), and it is impossible to attach and install them. At this time, in order to ensure that the tower crane has a higher independent height, a tower support device can be added to the upper part of the tower body. The tie rod structure in the tower support device can be tensioned and connected between the upper part of the tower body and the tower crane base / fixed foundation through a tensioning cylinder. However, in order to achieve the tensioning of the tie rod structure, a larger-sized cylinder needs to be used to apply the tensioning force, resulting in higher costs. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the utility model provides a tensioning mechanism for a pull rod for tower support, aiming to solve the technical problem of high cost caused by the need to use a larger-sized oil cylinder to apply tensioning force to the pull rod structure.

[0004] To achieve the above-mentioned purpose, the utility model provides a tensioning mechanism for a tower body support rod, wherein the tensioning mechanism for a tower body support rod comprises a tensioning rod assembly and a tensioning cylinder, the tensioning cylinder comprises a cylinder body, a piston rod and a locking nut, the piston rod is movably arranged in the cylinder body and both ends extend out of the cylinder body, the first end of the piston rod is used to connect with the tensioning rod assembly, and the second end is arranged as an externally threaded rod body, the locking nut is sleeved on the externally threaded rod body and can be tightened until it abuts against the cylinder body.

[0005] In an embodiment of the utility model, the tower body supporting tie rod tensioning mechanism also includes at least two pull plate bodies arranged in sequence around the cylinder body, and the at least two pull plate bodies are respectively connected to the cylinder body and can support the first end of the cylinder body to be set upward.

[0006] In the embodiment of the utility model, a force sensor for detecting the tensioning force is provided on the pulling plate body.

[0007] In the embodiment of the utility model, the pulling plate body includes an upper plate body and a lower plate body arranged in sequence from top to bottom, the upper plate body and the lower plate body are connected through a force sensor, and the lower end of the lower plate body is fixedly arranged, and the upper end of the upper plate body is connected to the cylinder body;

[0008] And / or, at least two ear plate parts are sequentially spaced along the circumferential direction on the outer side of the cylinder body, and the at least two ear plate parts are detachably connected to the at least two pulling plate bodies one by one through the cylinder body connecting pieces.

[0009] In the embodiment of the utility model, the inner wall of the oil cylinder body is formed with a step surface arranged toward the external threaded rod body, and the piston body on the piston rod member faces the step surface and is movably arranged in the inner cavity of the oil cylinder body.

[0010] In an embodiment of the utility model, the tie rod assembly includes at least two tie rod monomers, and the at least two tie rod monomers are movably connected in sequence, so that the tie rod assembly can be switched between an extended state and a retracted state.

[0011] In an embodiment of the utility model, at least two pull rod monomers are arranged in sequence along the length direction, and any two adjacent pull rod monomers are connected by a flip connection structure, so that at least two pull rod monomers can be flipped in sequence and can be switched between an unfolded and extended state and a folded and collapsed state, and at least two pull rod monomers are arranged to be horizontally placed when in the folded and collapsed state.

[0012] In an embodiment of the utility model, the flip connection structure is configured as a connection unit, and a first hinge part and a second hinge part are respectively provided at both ends of the connection unit. Two adjacent pull rod units are respectively and one by one movably hinged with the first hinge part and the second hinge part, and at least two pull rod units can be horizontally arranged in sequence along the height direction when in a folded and retracted state.

[0013] In an embodiment of the utility model, the flip connection structure is configured as a pin structure, and at least two pull rod monomers are formed with a folding accommodating space. The end of the rear pull rod monomer can be extended into the folding accommodating space of the front pull rod monomer and can be movably hinged through the pin structure, and the rear pull rod monomer is horizontally placed in the folding accommodating space of the front pull rod monomer when in a folded and retracted state.

[0014] In the embodiment of the utility model, at least two pull rod units are configured as telescopic tube units and are telescopically mounted one after another in the direction from inside to outside, so that the pull rod assembly can be switched between a pulled out extended state and a retracted retracted state.

[0015] Through the above technical solution, the tensioning mechanism for tower support provided by the embodiment of the utility model has the following beneficial effects:

[0016] When using the above-mentioned tower body supporting tie rod tensioning mechanism, since it includes a tie rod assembly and a tensioning cylinder, the piston rod in the tensioning cylinder is movably arranged in the cylinder body and both ends extend out of the cylinder body, the first end of the piston rod is used to connect with the tie rod assembly, and the second end is set as an externally threaded rod body. The tensioning cylinder is also provided with a locking nut, which can be sleeved on the externally threaded rod body. Then, when the cylinder body of the tensioning cylinder is set on the tower crane base / fixed foundation, and the tie rod assembly is connected to the upper end of the tower body, the tensioning cylinder can be controlled to tension the tie rod assembly first, and when the piston rod moves until the tensioning tension reaches a preset value (pre-tightening tension), the locking nut can be adjusted so that the locking nut is tightened to abut against the cylinder body, so that the tensioning tension on the piston rod can be distributed to the cylinder body, thereby significantly reducing the size of the cylinder and achieving the purpose of reducing costs.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the embodiments of the present utility model and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present utility model, but do not constitute a limitation on the embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of a tension rod tensioning mechanism for tensioning and supporting a tower body according to an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a tensioning cylinder in one embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the pull rod assembly in a folded and retracted state according to the first embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a pull plate unit according to the first embodiment of the utility model;

[0023] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 6 It is a schematic diagram of the structure of the connecting monomer according to the first embodiment of the utility model;

[0025] Figure 7 It is a structural schematic diagram of the pull rod assembly in a folded and retracted state according to the second embodiment of the utility model;

[0026] Figure 8 A schematic structural diagram of a pull rod assembly in a second embodiment of the present utility model in an unfolded and extended state;

[0027] Fig. 9 yes Figure 8 A schematic diagram of a local enlarged structure;

[0028] Fig.10 It is a structural schematic diagram of a pull rod assembly according to the third embodiment of the utility model;

[0029] Fig.11 yes Fig.10 Schematic diagram of the local enlarged structure.

[0030] Description of Reference Numerals

[0031] 10 tie rod assembly 100 tie rod monomer

[0032] 110 first pull rod plate 111 first positioning block

[0033] 112 second positioning block 113 block connector

[0034] 114 first hinge hole 120 second tie rod plate

[0035] 121: connecting plate 122: folding accommodation space

[0036] 130 telescopic tube monomer 131 first joint

[0037] 132 second joint 200 flip connection structure

[0038] 210 connecting monomer 211 first connecting plate

[0039] 212 second connecting plate body 213 third connecting plate body

[0040] 214 first clamping space 215 second clamping space

[0041] 216 second hinge hole 217 connecting fastener

[0042] 218 sleeve part 220 pin structure

[0043] 300 tensioning cylinder 310 cylinder body

[0044] 311 ear plate part 312 step surface

[0045] 320 Piston rod 321 External threaded rod

[0046] 330 Locking nut 340 Pull plate body

[0047] 341 force sensor 400 support arm DETAILED DESCRIPTION

[0048] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0049] The tower body supporting tie rod tensioning mechanism of the present utility model will be described below with reference to the accompanying drawings.

[0050] like Figure 1 and Figure 2 As shown, the utility model provides a tensioning mechanism for a tower support rod, wherein the tensioning mechanism for a tower support rod comprises:

[0051] Tie rod assembly 10;

[0052] The tensioning cylinder 300 includes a cylinder body 310, a piston rod 320 and a locking nut 330. The piston rod 320 is movably arranged in the cylinder body 310 and both ends extend out of the cylinder body 310. The first end of the piston rod 320 is used to connect with the pull rod assembly 10, and the second end is set as an externally threaded rod shaft 321. The locking nut 330 is sleeved on the externally threaded rod shaft 321 and can be tightened until it abuts against the cylinder body 310.

[0053] When the above-mentioned tensioning mechanism for tower support is used, since it includes the tensioning rod assembly 10 and the tensioning oil cylinder 300, the piston rod 320 in the tensioning oil cylinder 300 is movably arranged in the oil cylinder body 310 and both ends extend out of the oil cylinder body 310, the first end of the piston rod 320 is used to connect with the tensioning rod assembly 10, and the second end is set as an external threaded rod body 321, and the tensioning oil cylinder 300 is also provided with a locking nut 330, which can be sleeved on the external threaded rod body 321, so that when the oil cylinder of the tensioning oil cylinder 300 is tightened, the locking nut 330 can be tightened. The cylinder body 310 is arranged on the tower crane base / fixed foundation, and the tie rod assembly 10 is connected to the upper end of the tower body. The tensioning cylinder 300 can be controlled to tension the tie rod assembly 10, and the locking nut 330 can be adjusted when the piston rod 320 moves until the tensioning force reaches a preset value (pre-tightening force) so that the locking nut 330 is tightened to abut against the cylinder body 310, so that the tensioning force on the piston rod 320 can be distributed to the cylinder body 310, thereby significantly reducing the size of the cylinder and achieving the purpose of reducing costs.

[0054] In the embodiment of the utility model, the tensioning mechanism for the pull rod for supporting the tower body further includes at least two pull plate bodies 340 which are arranged in sequence and spaced around the oil cylinder body 310, and the at least two pull plate bodies 340 are respectively connected to the oil cylinder body 310, and can support the first end of the oil cylinder body 310 to be arranged upward. That is, the installation of the oil cylinder body 310 on the tower crane base frame / fixed foundation can be achieved by fixing at least two pull plate bodies 340 on the tower crane base frame / fixed foundation, and the stability and reliability of the tensioning movement can be ensured by supporting the first end of the oil cylinder body 310 to be arranged upward. Specifically, the number of the pull plate bodies 340 can be set to two, and the two pull plate bodies 340 are respectively arranged on opposite sides of the oil cylinder body 310, and the lower ends of the two pull plate bodies 340 are arranged on the tower crane base frame / fixed foundation, and the upper ends are respectively detachably connected to the oil cylinder body 310.

[0055] In the embodiment of the utility model, a force sensor 341 for detecting the tensioning force is provided on the pull plate body 340. By adding the force sensor, it is convenient to detect the tensioning force on the pull rod assembly 10 in real time during the operation of the tower crane to ensure the safety of the tower crane. Specifically, since the locking nut 330 is tightened to abut against the cylinder body 310, and the pull plate body 340 is connected to the cylinder body 310, the pull plate body 340 can also share the tensioning force on the pull rod assembly 10, and the force sensor 341 is added to the pull plate body 340 to detect the tensioning force. More specifically, the plate pulling body 340 includes an upper plate and a lower plate that are arranged in order from top to bottom, the lower end of the lower plate is arranged on the tower crane bottom frame / fixed foundation, the upper plate and the lower plate are connected through a plate pulling sensor that is set as a force sensor 341, the upper end of the upper plate is connected to the oil cylinder body 310, and can cooperate with other plate pulling bodies 340 to support the first end of the oil cylinder body 310 to be arranged upward. In addition, the utility model is not limited to this, the force sensor 341 can also be set as a pin sensor, and the plate pulling body 340 and the oil cylinder body 310 can be connected in series through the pin sensor.

[0056] It should be noted that the force-bearing process of the tie rod assembly 10 in the present invention is divided into three steps:

[0057] Step 1: pre-tightening stage, the first end of the piston rod 320 retracts to tighten the pull plate assembly 10;

[0058] Step 2: After the pre-tightening tension of the tensioning cylinder 300 is reached, the locking nut 330 is adjusted so that the locking nut 330 is tightened until it abuts against the cylinder body 310;

[0059] Step 3: When the tower crane is working, due to the deformation of the tower body, additional tension will be generated on the pull plate assembly 10, and the tension at this time can be detected by the force sensor 341.

[0060] In the embodiment of the utility model, at least two ear plate parts 311 are sequentially arranged at intervals along the circumferential direction on the outer side of the oil cylinder body 310, and the at least two ear plate parts 311 are detachably connected to at least two pull plate bodies 340 through cylinder body connectors. The ear plate parts 311 are added to the outer side of the oil cylinder body 310, which can facilitate the detachable connection with the pull plate body 340. Specifically, the upper end of the pull plate body 340 and the ear plate parts 311 are both provided with connection holes, and the ear plate parts 311 of the oil cylinder body 310 can be placed on one side of the upper end of the pull plate body 340, and the connection holes of the two can be arranged to communicate with each other, and then the connection holes of the two can be sequentially penetrated through the cylinder body connector to fasten the connection, and the cylinder body connector can be set as a bolt plus nut structure. More specifically, the upper end of the pulling plate body 340 (upper plate body) is formed with two forked plate portions that are relatively spaced apart, and both forked plate portions are provided with connecting holes. The ear plate portion 311 can be placed between the two forked plate portions, and the ear plate portion 311 and the two forked plate portions can be connected in series in sequence through the cylinder body connecting piece to realize the clamping connection of the upper end of the pulling plate body 340 to the ear plate portion 311.

[0061] In the embodiment of the utility model, the inner peripheral wall of the oil cylinder body 310 is formed with a step surface 312 arranged toward the external threaded rod 321, and the piston body on the piston rod 320 faces the step surface 312 and is movably arranged in the inner cavity of the oil cylinder body 310. That is, the step surface 312 achieves blocking of the piston body in the inner cavity of the oil cylinder body 310, and because the step surface 312 is arranged toward the external threaded rod 321, the maximum extension length of the piston rod 320 extending upward is limited, so that the oil filling port can be arranged in the circumferential direction of the oil cylinder body 310, and there is no need to open the oil filling port in the end direction, thereby ensuring the reliability of the end-to-end seal. Specifically, when the first end of the piston rod 320 is installed upward, the step surface 312 is set to be set downward, and the inner cavity of the cylinder body 310 can be bounded by the step surface 312. The inner cavity above the step surface 312 is a small cavity, and the inner cavity below the step surface 312 is a large cavity. A small cavity oil inlet is opened on the peripheral wall of the cylinder body 310 above the step surface 312, and a large cavity oil inlet is opened on the peripheral wall of the cylinder body 310 below the step surface 312 and close to the lower end. When the tensioning cylinder 300 is controlled to tension and pull the pull rod assembly 10, the small cavity oil inlet can be controlled to fill with oil, so that the piston rod 320 moves downward.

[0062] See also Figure 1 , Figure 3 , Figure 8 and Fig.10In the embodiment of the utility model, the tie rod assembly 10 includes a tie rod monomer 100, and the number of the tie rod monomers 100 is at least two, and at least two tie rod monomers 100 are movably connected in sequence, so that the tie rod assembly 10 can switch between an extended state and a retracted state. The tie rod assembly 10 is configured to be formed by at least two tie rod monomers 100 being movably connected in sequence, so that the tie rod assembly 10 has an extended state and a retracted state, and the tie rod assembly 10 can be in an extended state when performing a tensioning support assembly operation, and the tie rod assembly 10 can be switched from an extended state to a retracted state before assembly and after disassembly, so that the length of the tie rod assembly 10 is reduced, thereby achieving the purpose of facilitating storage and transportation.

[0063] like Figure 3 and Figure 8 As shown, in the first and second embodiments of the utility model, at least two tie rod monomers 100 are arranged in sequence along the length direction, and any two adjacent tie rod monomers 100 are connected by a flip connection structure 200, so that at least two tie rod monomers 100 can be flipped in sequence and can be switched between the unfolded and extended state and the folded and retracted state, and at least two tie rod monomers 100 are used to be arranged horizontally when in the folded and retracted state. By adding the flip connection structure 200, the folding mode of the tie rod assembly 10 can be folded and retracted, which is not only convenient for assembly, but also can quickly realize state switching.

[0064] Specifically, when tension support is required between the upper part of the tower body and the tower crane base frame / fixed foundation, the rod assembly 10 can be switched to an expanded and extended state. The expanded and extended state means that each rod unit 100 in the rod assembly 10 is flipped to the rear side of the previous rod unit 100. At this time, the length of the rod assembly 10 is the largest. When the rod assembly 10 needs to be stored, the rod assembly 10 can be switched to a folded and retracted state. The folded and retracted state means that each rod unit 100 in the rod assembly 10 is folded and flipped to be placed in parallel with the previous rod unit 100. Specifically, each rod unit 100 can be placed horizontally. At this time, the length of the rod assembly 10 is the smallest, which makes it convenient to store and transport the rod assembly 10 before and after assembly.

[0065] In addition, at least two tie rod monomers 100 can be placed horizontally when in a folded and retracted state, which can improve the stability of the tie rod assembly 10 during transportation. In addition, there can be multiple tie rod monomers 100, and multiple tie rod monomers 100 are connected in sequence through the flip connection structure 200. The number of tie rod monomers 100 can be set according to specific circumstances.

[0066] See also Figures 3 to 6In the first embodiment of the utility model, the flip connection structure 200 can be set as a connection monomer 210, and the two ends of the connection monomer 210 are respectively provided with a first hinge and a second hinge, and the two adjacent pull rod monomers 100 are respectively and one by one correspondingly movably hinged with the first hinge and the second hinge, and at least two pull rod monomers 100 can be arranged horizontally in sequence along the height direction in the folded and retracted state. Then, by setting the connection monomer 210, not only the folding and retracting of the pull rod assembly 10 is realized, but also the flip hinge points of the two adjacent pull rod monomers 100 can be set separately, so that the folding and flipping are smoother and more flexible. Specifically, the first hinge hole 114 can be opened at both ends of the pull rod monomer 100, and the second hinge hole 216 can be opened on the first hinge and the second hinge, and the pull rod monomer 100 is movably hinged with the connection monomer 210 through the hinge shaft penetrating the first hinge hole 114 and the second hinge hole 216. In addition, when the tie rod assembly 10 is in the folded and retracted state, the connecting unit 210 connecting two adjacent tie rod units 100 is arranged vertically.

[0067] In the first embodiment of the utility model, the connecting monomer 210 includes a first connecting plate body 211 and a second connecting plate body 212, which are arranged in a relative spacing and connected, and the first ends of the first connecting plate body 211 and the second connecting plate body 212 are set as a first hinge part and form a first clamping space 214, and the second ends of the first connecting plate body 211 and the second connecting plate body 212 are set as a second hinge part and form a second clamping space 215, and the first clamping space 214 and the second clamping space 215 can be inserted into the rod monomer 100, so that the rod monomer 100 and the connecting monomer 210 are connected in series and movable hinged through the hinge axis. That is, the connecting monomer 210 can clamp and connect the rod monomer 100, which plays a role in improving the connection strength and stability, and resisting lateral loads. Furthermore, the first connecting plate body 211 and the second connecting plate body 212 are fixedly connected in the middle area (that is, the area between the first hinge part and the second hinge part), and the first ends of the first connecting plate body 211 and the second connecting plate body 212, as well as the second ends of the first connecting plate body 211 and the second connecting plate body 212 can be provided with second hinge holes 216. After the end of the pull rod monomer 100 extends into the clamping space, the first hinge hole 114 on the pull rod monomer 100 can be connected with the second hinge hole 216 on the first connecting plate body and the second connecting plate body 212, and the hinge axis is sequentially penetrated through all the connected first hinge holes 114 and second hinge holes 216 to connect the pull rod monomer 100 and the connecting monomer 210 in series and realize movable hinge.

[0068] In the first embodiment of the utility model, the tie rod monomer 100 includes two first tie rod plate bodies 110, and the two first tie rod plate bodies 110 are arranged relatively spaced apart and connected. The connecting monomer 210 also includes a third connecting plate body 213. The first connecting plate body 211, the second connecting plate body 212 and the third connecting plate body 213 are arranged relatively spaced apart and connected in sequence, and the first ends of the first connecting plate body 211, the second connecting plate body 212 and the third connecting plate body 213 are set as first hinge parts and form two first clamping spaces 214, and the second ends of the first connecting plate body 211, the second connecting plate body 212 and the third connecting plate body 213 are set as second hinge parts and form two second clamping spaces 215. The two first clamping spaces 214 and the two second clamping spaces 215 can be inserted into by the two first tie rod plate bodies 110 one by one. That is, the rod monomer 100 can be set as a double-plate structure, and the double-plate structure obviously plays a role in strengthening the rod monomer 100. In addition, in order to continue to realize the clamping of the rod monomer 100 with a double-plate structure, the connecting monomer 210 can also be set as a three-plate structure. The two first rod plates 110 in the rod monomer 100 are respectively clamped in different clamping spaces one by one, thereby improving the stability of the flipping movement.

[0069] Specifically, a first hinge hole 114 is provided at the first end of the two first tie rod plate bodies 110 and a second end of the two first tie rod plate bodies 110, and a second hinge hole 216 is provided at the first end of the first connecting plate body 211, the second connecting plate body 212 and the third connecting plate body 213, respectively. After the ends of the two first tie rod plate bodies 110 of the tie rod monomer 100 extend one by one into the two clamping spaces set at the same end, the first hinge holes 114 on the two first tie rod plate bodies 110 can be connected with the second hinge holes 216 on the first connecting plate body, the second connecting plate body 212 and the third connecting plate body 213, and the hinge axis passes through all the connected first hinge holes 114 and the second hinge holes 216 in sequence to connect the tie rod monomer 100 and the connecting monomer 210 in series and realize active hinge.

[0070] In the first embodiment of the utility model, the rod unit 100 further includes a first positioning block 111, a second positioning block 112 and a block connector 113. The first positioning block 111 and the second positioning block 112 are both formed with two positioning slots arranged at intervals. The two positioning slots of the first positioning block 111 can be correspondingly mounted on the first long sides of the two first rod plates 110 of the rod unit 100, and the two positioning slots of the second positioning block 112 can be correspondingly mounted on the second long sides of the two first rod plates 110 of the rod unit 100, and the first positioning block 111 and the second positioning block 112 are detachably connected via the block connector 113. That is, the two first rod plates 110 of the rod unit 100 are detachably connected to facilitate disassembly and replacement. The arrangement of the first positioning block 111 and the second positioning block 112 not only facilitates the positioning of the two first tie rod plates 110 before the detachable connection, but also facilitates the adjustment of the position of the first tie rod plates 110. It should be particularly noted that the first long sides and the second long sides of the two first tie rod plates 110 refer to the two sides of the two first tie rod plates 110 that are arranged opposite to each other along the length direction.

[0071] Specifically, the width of the entity part between the two positioning slots of the first positioning block 111 and the two positioning slots of the second positioning block 112 can be equal to the spacing between the two first tie rod plates 110, so that the two first tie rod plates 110 can achieve stable clamping of the positioning blocks, and the entity part between the two positioning slots can be provided with a connection hole for the block connector 113 to pass through. More specifically, the block connector 113 can be set as a threaded fastener, such as a bolt plus a locking nut 330. Of course, the utility model is not limited to this, and can also be set as a rivet or a pin or other suitable fastener. In addition, the positioning block group on a tie rod monomer 100 includes but is not limited to one, and can be set to at least two.

[0072] In the first embodiment of the utility model, a chamfer is formed on the inner peripheral edge of the first tie rod plate body 110. The addition of the chamfer structure facilitates the installation of the positioning block and the connecting monomer 210. It should be particularly noted that the inner side of the tie rod plate body is relative to the gap between the two tie rod plate bodies, the side facing the gap is the inner side, and the side facing away from the gap is the outer side.

[0073] In the first embodiment of the utility model, the connection monomer 210 also includes a connection fastener 217 and a sleeve member 218. The sleeve member 218 is placed between the first connection plate body 211 and the second connection plate body 212. The connection fastener 217 is sequentially inserted through the first connection plate body 211, the sleeve member 218 and the second connection plate body 212 for fastening connection. That is, the connection monomer 210 is set to be detachably connected, and the addition of the sleeve member 218 can ensure the distance between the two adjacent connection plates to achieve the clamping of the first tie rod plate body 110. Specifically, when the connection unit 210 is set as a three-plate structure, the first connection plate body 211, the second connection plate body 212 and the third connection plate body 213 are all provided with mounting holes that are arranged in a mutual manner, and a sleeve member 218 that is in communication with the mounting holes is provided between the first connection plate body 211 and the second connection plate body 212, and a sleeve member 218 that is in communication with the mounting holes is provided between the second connection plate body 212 and the third connection plate body 213, and the connection fastener 217 passes through all the mounting holes and the sleeve member 218 in sequence and is fastened. More specifically, the connection fastener 217 can be set as a threaded fastener, such as a bolt plus a locking nut 330, of course, the utility model is not limited thereto, and can also be set as a suitable fastener such as a rivet or a pin.

[0074] In the first embodiment of the present invention, the length ratio of the pull rod unit 100 to the connection unit 210 can be set to 30-50, so as to minimize the number of connection units 210 and reduce the manufacturing cost. Preferably, the length ratio can be 40.

[0075] See also Figures 7 to 9 In the second embodiment of the utility model, the flip connection structure 200 can also be set as a pin structure 220, at least two tie rod monomers 100 are formed with a folding accommodating space 122, the end of the rear tie rod monomer 100 can be extended into the folding accommodating space 122 of the front tie rod monomer 100 and movably hinged through the pin structure 220, and the rear tie rod monomer 100 is horizontally placed in the folding accommodating space 122 of the front tie rod monomer 100 when it is in a folded and retracted state. It should be particularly noted that in this embodiment, the structures of all tie rod monomers 100 are consistent, but the frame size needs to be set to decrease in sequence, so that the rear tie rod monomer 100 can always be flipped and folded and stored in the folding accommodating space 122 of the front tie rod monomer 100. After all tie rod monomers 100 are flipped and folded and stored, the outer contour size of the entire tie rod assembly 10 is consistent with the outer contour size of the first tie rod monomer 100, so that the storage size of the tie rod assembly 10 can be further reduced.

[0076] In the second embodiment of the utility model, the arrangement of the pin structure 220 can be that two mutually connected tie rod monomers 100 are each provided with a pin hole that can be arranged in communication with each other, and a pin connecting member is passed through all the communicating pin holes for series connection, thereby realizing a movable hinge, or one of the two mutually connected tie rod monomers 100 can be formed with a shaft mounting portion, and the other tie rod monomer 100 can be formed with a pin hole that can be fitted onto the shaft mounting portion.

[0077] In the second embodiment of the utility model, the tie rod unit 100 includes a fixing plate 121 and two second tie rod plate bodies 120. The two second tie rod plate bodies 120 are arranged relatively spaced apart. The fixing plate 121 connects the two second tie rod plate bodies 120 to enclose a folding accommodating space 122, and the ends of the two second tie rod plate bodies 120 are provided with pin holes for the pin shaft structure 220 to pass through. Specifically, the fixing plate 121 is located on one side of the two second tie rod plate bodies 120 to become the bottom side of the folding accommodating space 122. Then, the rear tie rod monomer 100 is flipped and folded to be stored in the folding accommodating space 122 of the front tie rod monomer 100. The fixing plate 121 can play a bottom side supporting role for the rear tie rod monomer 100. Since the fixing plate 121 will limit the flipping, folding and storage direction of the rear tie rod monomer 100, the rear tie rod monomer 100 can only be folded, flipped and stored from the side where the fixing plate 121 is not provided. It is not limited to that all tie rod monomers 100 have the fixing plate 121. Preferably, the first tie rod monomer 100 has the fixing plate 121, and the number of fixing plates 121 on one tie rod monomer 100 includes but is not limited to one.

[0078] Specifically, the lower end of the tie rod assembly 10 provided by the utility model can be connected to the rod end of the piston rod 320 arranged upwardly in the tensioning cylinder 300, and the upper end can be connected to the support arm 400 installed on the upper part of the tower body to achieve tension support for the tower body.

[0079] In summary, in the first and second embodiments of the tie rod assembly 10 provided by the utility model, the tie rod assembly 10 can be designed as a foldable structure, and has the advantages of simple assembly and manufacturing, and high transportation and transfer efficiency. The tie rod monomer 100 in the first embodiment adopts a double-plate structure, and the connecting monomer 210 adopts a three-plate structure, which can play a role in resisting lateral loads.

[0080] See also Fig.10 and Fig.11In the third embodiment of the utility model, at least two rod units 100 are configured as telescopic tube units 130, and are telescopically mounted in sequence from the inside to the outside, so that the rod assembly 10 can be switched between a pulled-out extended state and a retracted retracted state. The rod assembly 10 can also be configured as a multi-layer telescopic sleeve, and the rod assembly 10 can be switched between an extended state and a retracted state through the telescopic movement of the telescopic tube units 130. When the rod assembly 10 is in the retracted state, all the telescopic tube units 130 in the rod assembly 10 can be stored in the outermost telescopic tube unit 130, thereby ensuring the reliability and stability of the retracted state.

[0081] Specifically, when tension support is required between the upper part of the tower body and the tower crane base frame / fixed foundation, the rod assembly 10 can be switched to a pulled-out and extended state, and the pulled-out and extended state means that each telescopic cylinder unit 130 in the rod assembly 10 is pulled out from the previous telescopic cylinder unit 130, and the length of the rod assembly 10 is at its maximum at this time. When the rod assembly 10 needs to be stored, the rod assembly 10 can be switched to a retracted and gathered state, and the retracted and gathered state means that each telescopic cylinder unit 130 in the rod assembly 10 is retracted into the outermost telescopic cylinder unit 130, and the length of the rod assembly 10 is at its minimum at this time, which facilitates the storage and transportation of the rod assembly 10 before and after assembly.

[0082] Furthermore, the inner end of the telescopic tube unit 130 is provided with a first joint 131 protruding on the outer circumferential wall. The first joint 131 can always be placed in the outer telescopic tube unit 130 and can abut against the outer telescopic tube unit 130 after its own tube unit is extended into place to avoid falling out. The outer end of the telescopic tube unit 130 is provided with a second joint 132 protruding on the inner circumferential wall. The second joint 132 is configured to form an abutment stop for the first joint 131 on the inner telescopic tube unit 130.

[0083] In the description of the present invention, it should be understood that 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0084] In the present invention, 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; 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 the present invention can be understood according to specific circumstances.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tensioning mechanism for a tower support rod, characterized in that: The tower body support tie rod tensioning mechanism comprises: Tie rod assembly (10); The tensioning cylinder (300) comprises a cylinder body (310), a piston rod (320) and a locking nut (330); the piston rod (320) is movably disposed in the cylinder body (310) and both ends extend out of the cylinder body (310); the first end of the piston rod (320) is used to connect with the pull rod assembly (10), and the second end is configured as an externally threaded rod shaft (321); the locking nut (330) is sleeved on the externally threaded rod shaft (321) and can be tightened until it abuts against the cylinder body (310).

2. The tensioning mechanism for tower support according to claim 1, characterized in that: The tower body supporting tie rod tensioning mechanism also includes at least two pull plate bodies (340) arranged in sequence and at intervals around the cylinder body (310); at least two pull plate bodies (340) are respectively connected to the cylinder body (310) and can support the first end of the cylinder body (310) to be arranged upward.

3. The tensioning mechanism for tower support rods according to claim 2, characterized in that: The pulling plate body (340) is provided with a force sensor (341) for detecting the tensioning force.

4. The tensioning mechanism for tower support rods according to claim 2, characterized in that: The pulling plate body (340) comprises an upper plate body and a lower plate body which are sequentially arranged from top to bottom, the upper plate body and the lower plate body are connected via a force sensor (341), the lower end of the lower plate body is fixedly arranged, and the upper end of the upper plate body is connected to the oil cylinder body (310); And / or, at least two ear plate portions (311) are provided on the outer side of the cylinder body (310) in a circumferential direction in sequence and at intervals, and at least two of the ear plate portions (311) are detachably connected to at least two of the pulling plate bodies (340) in a one-to-one correspondence via cylinder body connectors.

5. The tensioning mechanism for tower support rods according to claim 1, characterized in that: The inner wall of the oil cylinder body (310) is formed with a step surface (312) arranged toward the externally threaded rod (321), and the piston body on the piston rod (320) faces the step surface (312) and is movably arranged in the inner cavity of the oil cylinder body (310).

6. The tensioning mechanism for tower support rods according to any one of claims 1 to 5, characterized in that: The pull rod assembly (10) comprises a pull rod monomer (100), the number of the pull rod monomers (100) is at least two, and at least two of the pull rod monomers (100) are movably connected in sequence, so that the pull rod assembly (10) can be switched between an extended state and a retracted state.

7. The tensioning mechanism for tower support rods according to claim 6, characterized in that: At least two of the tie rod monomers (100) are arranged in sequence along the length direction, and any two adjacent tie rod monomers (100) are connected via a flip connection structure (200), so that at least two of the tie rod monomers (100) can be flipped in sequence and can be switched between an unfolded and extended state and a folded and collapsed state, and at least two of the tie rod monomers (100) are arranged to be horizontally arranged when in the folded and collapsed state.

8. The tensioning mechanism for tower support rods according to claim 7, characterized in that: The flip connection structure (200) is configured as a connection unit (210), and the two ends of the connection unit (210) are respectively provided with a first hinge part and a second hinge part, and the two adjacent pull rod units (100) are respectively and one-to-one correspondingly movably hinged with the first hinge part and the second hinge part, and at least two pull rod units (100) can be horizontally arranged in sequence along the height direction when in a folded and retracted state.

9. The tensioning mechanism for tower support rods according to claim 7, characterized in that: The flip connection structure (200) is configured as a pin structure (220), and at least two of the pull rod monomers (100) are each formed with a folding accommodating space (122), and the end of the rear pull rod monomer (100) can be extended into the folding accommodating space (122) of the front pull rod monomer (100) and can be movably hinged through the pin structure (220), and the rear pull rod monomer (100) is horizontally placed in the folding accommodating space (122) of the front pull rod monomer (100) when in a folded and retracted state.

10. The tensioning mechanism for tower support rods according to claim 6, characterized in that: At least two of the pull rod monomers (100) are configured as telescopic tube monomers (130) and are sequentially telescopically arranged in a direction from the inside to the outside, so that the pull rod assembly (10) can be switched between a pulled-out extended state and a retracted retracted state.

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