CN222614524U - A large-span prestressed string grid structure - Google Patents
A large-span prestressed string grid structure Download PDFInfo
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- CN222614524U CN222614524U CN202421401138.8U CN202421401138U CN222614524U CN 222614524 U CN222614524 U CN 222614524U CN 202421401138 U CN202421401138 U CN 202421401138U CN 222614524 U CN222614524 U CN 222614524U
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Abstract
本实用新型涉及张弦网架技术领域，具体是一种大跨度预应力张弦网架结构，包括多个主桁架，相邻两个所述主桁架之间设置有多个次桁架，所述主桁架的外侧对应次桁架处固定有多个与对应位置处的次桁架插接的固定机构，所述固定机构包括与主桁架固定的固定架，所述固定架的四个侧面固定连接有矩形套一。本实用新型中，该装置通过相对位置处的两个矩形套二的相互靠近可以实现对次桁架进行固定，且便于后期对次桁架进行更换，不需要利用螺栓固定，因此可以减少安装时间，提高该装置的安装效率，且可以对长度相差不多的次桁架安装在相邻的两个主桁架之间，该装置安装过程简单，实用性更高。
The utility model relates to the technical field of tensioned grid, specifically a large-span prestressed tensioned grid structure, including a plurality of main trusses, a plurality of secondary trusses are arranged between two adjacent main trusses, a plurality of fixing mechanisms plugged with the secondary trusses at corresponding positions are fixed to the outer sides of the main trusses at the corresponding secondary trusses, the fixing mechanisms include a fixing frame fixed to the main trusses, and the four sides of the fixing frame are fixedly connected with a rectangular sleeve 1. In the utility model, the device can fix the secondary trusses by bringing two rectangular sleeves 2 at relative positions close to each other, and it is convenient to replace the secondary trusses later, and it is not necessary to fix them with bolts, so the installation time can be reduced, the installation efficiency of the device can be improved, and the secondary trusses with similar lengths can be installed between two adjacent main trusses. The installation process of the device is simple and the practicality is higher.
Description
Technical Field
The utility model relates to the technical field of string net racks, in particular to a large-span prestress string net rack structure.
Background
The string net frame is a structural system, and combines the characteristics of string beams and net frame structures. The structure is generally composed of upper chord rigid members (such as beams or trusses) and high-strength tensioning cables/rods, and is connected through a plurality of supporting rods to form a rigid-flexible mixed structural system, while the large-span prestress tensioning chord grid structure is an advanced space structure form, combines the advantages of the tensioning chord beams and the grid structure, and is suitable for building projects needing large-span coverage.
At present, a string net rack is usually composed of a plurality of main trusses and secondary trusses, because the main trusses and the secondary trusses are usually fixed by bolts, time is wasted in installation, and in the later stage, if the whole net rack is extruded by external force, one or more secondary trusses possibly deform, at the moment, the deformed secondary trusses need to be detached, and because the net frame is extruded by external force, the plurality of secondary trusses are clamped between two adjacent main trusses, so even if the deformed secondary truss bolts are detached, the deformed secondary trusses are still difficult to detach from between the two adjacent main trusses.
Disclosure of utility model
The utility model aims to provide a large-span prestress string-tensioning grid structure so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a large-span prestressing force string grid structure, includes a plurality of main trusss, two adjacent be provided with a plurality of secondary trusss between the main truss, the outside of main truss corresponds secondary truss department and is fixed with a plurality of fixed establishment of pegging graft with the secondary truss of corresponding position department, fixed establishment includes the mount fixed with the main truss, four side fixedly connected with rectangle cover one of mount, the inside of rectangle cover one is provided with installation component, the outside of rectangle cover one is provided with joint subassembly, installation component includes the inside gliding rectangle cover two of rectangle cover one with corresponding position department.
The fixing frame is characterized in that two opposite side surfaces of the first rectangular sleeve are respectively provided with a sliding groove in a penetrating mode, two opposite side surfaces of the first rectangular sleeve are fixedly connected with connecting blocks which slide with the sliding grooves at corresponding positions corresponding to the sliding grooves, and two ends of the four side surfaces of the fixing frame are respectively connected with a first screw rod which penetrates through and is screwed with the connecting blocks at the corresponding positions in a rotating mode.
The novel screw is characterized in that L-shaped holes are formed in four corners of one side face of the fixing frame in a penetrating mode, one end of the first screw penetrates through the L-shaped holes at corresponding positions and is fixedly connected with chain wheels, and a chain is arranged between the two chain wheels at opposite positions in a rolling mode.
The fixing device is characterized in that two opposite side surfaces of the rectangular sleeve I are fixedly connected with fixing blocks which penetrate through and rotate with screw rods I at corresponding positions away from the fixing frame, and nuts I are fixedly connected to one ends of the screw rods I away from the fixing frame.
The connecting plate is fixedly connected with one end of the top surface of the L-shaped inserting block, a round rod penetrates through and rotates between the two supporting blocks at the opposite positions, and two ends of the round rod are fixedly connected with a screw rod II which penetrates through and is screwed with the connecting plate at the corresponding position.
The screw rod is characterized in that one end of the screw rod II is fixedly connected with a nut II, one side surface of the rectangular sleeve I, which is away from the rectangular sleeve I, is fixedly connected with a sliding rod which penetrates through the L-shaped insertion block at the corresponding position, and one end of the sliding rod is fixedly connected with a limiting block.
Compared with the prior art, the utility model has the beneficial effects that:
1. The secondary truss can be fixed through mutual approaching of the two rectangular sleeves II at the opposite positions, the secondary truss is convenient to replace in the later period, and bolts are not required to be used for fixing, so that the installation time can be shortened, the installation efficiency of the device is improved, the secondary truss with little difference in length can be installed between two adjacent main trusses, the installation process of the device is simple, and the practicability is higher;
2. Two L-shaped inserting blocks at corresponding positions can be mutually close through simultaneous rotation of two screw rods at opposite positions until one ends of the two L-shaped inserting blocks opposite to each other are inserted into rectangular holes at the corresponding positions, so that the secondary truss can be stably installed, and the secondary truss caused by rotation of rectangular sleeves at two ends of the secondary truss under the external force factor can be prevented from falling.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of a secondary truss of the present utility model;
FIG. 3 is a schematic view of a fixing mechanism according to the present utility model;
FIG. 4 is a schematic view of a fixing frame according to the present utility model;
FIG. 5 is a schematic view of the mounting assembly of the present utility model;
FIG. 6 is a schematic view of a plug assembly according to the present utility model.
The device comprises a main truss, a secondary truss, a rectangular hole, a fixing mechanism, a fixing frame, a rectangular sleeve I, a fixing groove, a 313L-shaped hole, a fixing block, a 315 supporting block, a 32 mounting component, a 321 rectangular sleeve II, a 322 connecting block, a 323 screw I, a 324 sprocket, a 325, a nut I, a 326, an inserting hole, a33, a clamping component, a 331L-shaped inserting block, a 332 connecting plate, a 333 round rod, a 334, a screw II, a 335, a nut II, a 336, a slide bar, a337 and a limiting block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, in an embodiment of the present utility model, a large-span prestressed truss structure includes a plurality of main trusses 1, a plurality of secondary trusses 2 are disposed between two adjacent main trusses 1, a plurality of fixing mechanisms 3 inserted with the secondary trusses 2 at corresponding positions are fixed at positions corresponding to the secondary trusses 2 on the outer sides of the main trusses 1, the fixing mechanisms 3 include fixing frames 31 fixed with the main trusses 1, four sides of the fixing frames 31 are fixedly connected with a first rectangular sleeve 311, an installation component 32 is disposed inside the first rectangular sleeve 311, a clamping component 33 is disposed on the outer sides of the first rectangular sleeve 311, and the installation component 32 includes a second rectangular sleeve 321 sliding inside the first rectangular sleeve 311 at the corresponding position.
Specifically, a plurality of main trusses 1 are respectively fixed on a plurality of string beams according to construction requirements, rectangular holes 21 are formed through two ends of one side surface of a secondary truss 2, one end of the secondary truss 2 is inserted into one of rectangular sleeves two 321, then the rectangular holes 21 on the secondary truss 2 are aligned with clamping assemblies 33 at corresponding positions by moving the rectangular sleeves two 321, one end of the secondary truss 2 is clamped and fixed by the clamping assemblies 33, the other end of the secondary truss 2 is aligned with the rectangular sleeves two 321 at the corresponding positions, the other end of the secondary truss 2 is inserted into the rectangular sleeves two 321 at the corresponding positions by moving the other rectangular sleeves two 321, the other end of the secondary truss 2 is clamped and fixed by the clamping assemblies 33, then the rectangular sleeves two 321 at two ends of the secondary truss 2 are moved again, the secondary truss 2 is extruded and fixed by the two rectangular sleeves two 321, when the main truss 1 is subjected to excessive external force (such as high wind), pressure is applied to the secondary truss 2, the secondary truss 2 may be bent and deformed, in order to prevent larger accidents, the deformed secondary truss 2 needs to be replaced, the clamping assemblies 33 positioned at two ends of the deformed secondary truss 2 are firstly separated from the secondary truss 2, then the rectangular sleeves 321 at two ends of the secondary truss 2 are separated from each other, so that the rectangular sleeves 321 no longer apply external force to the secondary truss 2, at the moment, the deformed secondary truss 2 can be taken out from between the two rectangular sleeves 321, the device can fix the secondary truss 2 through mutual approaching of the two rectangular sleeves 321 at opposite positions, and is convenient for replacing the secondary truss 2 at later stage without using bolts for fixing, therefore, the installation time can be reduced, and the installation efficiency of the device can be improved, and can the length differ little secondary truss 2 install between two adjacent main trusses 1, the device installation simple process, the practicality is higher.
Example 1
As shown in fig. 3-5, in the present embodiment, the two opposite sides of the first rectangular sleeve 311 are respectively provided with a sliding groove 312 in a penetrating manner, the two opposite sides of the second rectangular sleeve 321 are respectively fixedly connected with a connecting block 322 sliding with the sliding groove 312 at the corresponding position, two ends of the four sides of the fixing frame 31 are respectively rotatably connected with a first screw 323 penetrating and screwed with the connecting block 322 at the corresponding position, four corners of one side of the fixing frame 31 are respectively provided with an L-shaped hole 313 in a penetrating manner, one end of the first screw 323 penetrates through the L-shaped hole 313 at the corresponding position and is fixedly connected with a sprocket 324, a chain is rolled between the two sprockets 324 at the opposite position, two opposite sides of the first rectangular sleeve 311 are respectively fixedly connected with a fixing block 314 penetrating and rotating with the first screw 323 at the corresponding position, and one end of the first screw 323 far from the fixing frame 31 is fixedly connected with a first nut 325.
In this embodiment, the first screws 323 at opposite positions can be rotated by using the driving of the electric wrench, the first screws 323 which are rotated can slide the second rectangular sleeve 321 at the corresponding position in the first rectangular sleeve 311 at the corresponding position, and the second rectangular sleeve 321 at two ends of the secondary truss 2 can be fixed by screwing the first screws 323 with the connecting block 322 at the corresponding position, so that the secondary truss 2 is convenient to fix, and the deformed secondary truss 2 is convenient to replace in later period.
Example two
As shown in fig. 2, fig. 3 and fig. 6, in this embodiment, the two sides of a side surface of the second rectangular sleeve 321 are fixedly connected with the supporting blocks 315, the two side surfaces of the second rectangular sleeve 321, which deviate from each other, are respectively penetrated and provided with the inserting holes 326, the clamping assembly 33 comprises two symmetrically arranged L-shaped inserting blocks 331 which are inserted into the two inserting holes 326, one end of the top surface of each L-shaped inserting block 331 is fixedly connected with the connecting plate 332, a round rod 333 is penetrated and rotated between the two supporting blocks 315 at the opposite positions, two ends of the round rod 333 are respectively fixedly connected with a second screw rod 334 penetrating and screwed with the connecting plate 332 at the corresponding positions, one end of the second screw rod 334 is fixedly connected with a second nut 335, one side surface of the first rectangular sleeve 311, which deviates from each other, is fixedly connected with a sliding rod 336 penetrating and sliding with the L-shaped inserting block 331 at the corresponding positions, and one end of the sliding rod 336 is fixedly connected with the limiting block 337.
In this embodiment, the two screws two 334 can be rotated simultaneously by using the driving of the electric wrench, and the rotating screws two 334 can make the two L-shaped inserts 331 at the corresponding positions close to each other until the opposite ends of the two L-shaped inserts 331 are inserted into the rectangular holes 21 at the corresponding positions, so that the secondary truss 2 can be installed more stably, and therefore the secondary truss 2 can be prevented from falling due to the rotation of the rectangular sleeves two 321 at the two ends of the secondary truss 2 under the external force.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The utility model provides a large-span prestressing force string grid structure, its characterized in that, includes a plurality of main trusses (1), two adjacent be provided with a plurality of secondary trusses (2) between main truss (1), the outside of main truss (1) corresponds secondary truss (2) department and is fixed with a plurality of fixed establishment (3) of pegging graft with secondary truss (2) of corresponding position department, fixed establishment (3) include with main truss (1) fixed mount (31), four side fixedly connected with rectangle cover one (311) of mount (31), the inside of rectangle cover one (311) is provided with installation component (32), the outside of rectangle cover one (311) is provided with joint subassembly (33), installation component (32) include with the inside gliding rectangle cover two (321) of rectangle cover one (311) of corresponding position department.
2. The large-span prestress wire grid structure according to claim 1, wherein two sides of the first rectangular sleeve (311) deviating from are provided with sliding grooves (312) in a penetrating manner, two sides of the second rectangular sleeve (321) deviating from are fixedly connected with connecting blocks (322) sliding with the sliding grooves (312) at corresponding positions corresponding to the sliding grooves (312), and two ends of four sides of the fixing frame (31) are respectively connected with a first screw (323) penetrating and screwed with the connecting blocks (322) at the corresponding positions in a rotating manner.
3. The large-span prestressed wire grid structure according to claim 2, wherein the four corners of one side surface of the fixing frame (31) are respectively provided with an L-shaped hole (313), one end of the screw rod (323) penetrates through the L-shaped hole (313) at the corresponding position and is fixedly connected with a chain wheel (324), and a chain is rolled between the two chain wheels (324) at the opposite position.
4. A large span prestressed wire frame structure according to claim 3, characterized in that, two opposite sides of the rectangular sleeve one (311) and far from the fixing frame (31) are fixedly connected with a fixing block (314) which penetrates through and rotates with a screw one (323) at a corresponding position, and one end of the screw one (323) far from the fixing frame (31) is fixedly connected with a nut one (325).
5. The large-span prestressed wire grid structure according to claim 4, wherein two sides of one side surface of the rectangular sleeve two (321) are fixedly connected with supporting blocks (315), two side surfaces, which are away from each other, of the rectangular sleeve two (321) are provided with through holes (326), the clamping assembly (33) comprises two symmetrically arranged L-shaped inserting blocks (331) which are inserted into the two inserting holes (326), one end of the top surface of the L-shaped inserting block (331) is fixedly connected with a connecting plate (332), a round rod (333) is arranged between the two supporting blocks (315) at the opposite position in a penetrating and rotating mode, and two ends of the round rod (333) are fixedly connected with two screw rods (334) which are screwed with the connecting plates (332) at the corresponding positions in a penetrating and rotating mode.
6. The large-span prestressed wire truss structure according to claim 5, wherein one end of the second screw (334) is fixedly connected with a second nut (335), one side surface of the first rectangular sleeve (311) facing away from the second rectangular sleeve is fixedly connected with a sliding rod (336) penetrating through the sliding L-shaped insertion block (331) at the corresponding position, and one end of the sliding rod (336) is fixedly connected with a limiting block (337).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421401138.8U CN222614524U (en) | 2024-06-18 | 2024-06-18 | A large-span prestressed string grid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421401138.8U CN222614524U (en) | 2024-06-18 | 2024-06-18 | A large-span prestressed string grid structure |
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| Publication Number | Publication Date |
|---|---|
| CN222614524U true CN222614524U (en) | 2025-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421401138.8U Active CN222614524U (en) | 2024-06-18 | 2024-06-18 | A large-span prestressed string grid structure |
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| Country | Link |
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| CN (1) | CN222614524U (en) |
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- 2024-06-18 CN CN202421401138.8U patent/CN222614524U/en active Active
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