Auxiliary overhauling device for steel truss

Abstract

The utility model relates to an auxiliary overhauling device for a steel net rack. The steel net rack comprises a rod piece and bolt balls connected to the two ends of the rod piece. Comprising at least two connecting shafts which are located on the two sides of the rod piece respectively; the two limiting assemblies are used for limiting and clamping the bolt balls at the two ends of the same rod piece correspondingly; and the threaded rod is used for connecting the connecting shaft and the limiting assemblies so that the distance between the two limiting assemblies can be adjusted, and the device has the advantages that construction safety is high, the structure is simple, operation is convenient and fast, the construction difficulty and the labor load of operators are effectively reduced, and stable installation of rod pieces is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of construction equipment and steel space frame maintenance, and in particular to an auxiliary maintenance device for steel space frames. Background Technology

[0002] Steel space frames, with their lightweight and high strength characteristics, have become the mainstream structural form for large-span buildings. These structures are mostly assembled from prefabricated bolted balls and detachable members in a grid pattern, with the members serving as the core force-transmitting units, and their performance directly affecting the overall stability of the structure.

[0003] However, in engineering practice, due to hoisting errors during construction or factors such as load fatigue and environmental corrosion during use, some members are prone to bending deformation and corrosion. Such damage can alter the axial stress characteristics of the members, leading to a shift in the stress distribution of the cross-section, which in turn can cause local buckling or a decrease in load-bearing capacity, posing a potential threat to structural safety.

[0004] Currently, the repair of damaged members mainly relies on traditional welding reinforcement or overall replacement. The former is prone to weakening of the heat-affected zone of the base material due to high-temperature operation, which in turn affects the mechanical properties of the members (such as reduced hardness, weakened toughness, or defects such as cracks), thus affecting the safety and reliability of the entire structure. The latter requires the construction of a full-span support frame for load transfer, which has significant drawbacks such as long construction period and high economic cost. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing an auxiliary maintenance device for steel space frames.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An auxiliary maintenance device for a steel space frame, the steel space frame including rods and bolt balls connecting the two ends of the rods;

[0008] include:

[0009] At least two connecting shafts are provided, and they are located on both sides of the rod respectively;

[0010] The limiting assembly is provided in two sets, and each set is used to limit and clamp the bolt balls at both ends of the same rod.

[0011] A threaded rod is used to connect the connecting shaft and the limiting assembly to adjust the spacing between the two sets of limiting assemblies.

[0012] Preferably, each set of limiting components includes an inner limiting plate and an outer limiting plate disposed opposite to each other;

[0013] The inner limiting plate is located on the side of the outer limiting plate closer to the rod;

[0014] Both the inner limiting plate and the outer limiting plate are provided with limiting grooves to limit the bolt ball.

[0015] Preferably, the threaded rod located on the same side passes through the inner limiting plate on its corresponding side;

[0016] Each threaded rod is threaded with at least two first limiting nuts, which are respectively disposed on both sides of the inner limiting plate to fix the inner limiting plate at a preset position on the threaded rod.

[0017] Preferably, the threaded rod located on the same side passes through the outer limiting plate on its corresponding side;

[0018] Each threaded rod is threaded with at least two second limiting nuts, which are respectively disposed on both sides of the outer limiting plate to fix the outer limiting plate at a preset position on the threaded rod.

[0019] Preferably, the limiting groove is configured as an arc groove, and the inner wall surface of the limiting groove abuts against the outer wall surface of the bolt ball.

[0020] Preferably, the inner limiting plate and the outer limiting plate are configured as a single piece;

[0021] The limiting groove has an opening on one side so that the inner limiting plate or the outer limiting plate can be engaged with the bolt ball.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model provides an auxiliary maintenance device for steel space frames. Through the setting of two sets of limiting components, it can achieve limiting clamping of the bolt balls on both sides of the same member, ensuring the stability of the two bolt balls themselves. Simultaneously, the two sets of limiting components are connected by a connecting shaft and a threaded rod, enabling the auxiliary replacement device to stably support the two bolt balls, ensuring a constant distance between them and preventing the entire steel space frame from collapsing during member replacement. This ensures that the replacement of members between two adjacent bolt balls will not affect other members connected to those bolt balls, effectively improving the safety of member replacement and thus significantly increasing the safety factor during operation. Furthermore, with the help of this auxiliary replacement device, on the one hand, the support provided by this device effectively reduces the labor load on operators; on the other hand, during manual operation, the distance between the two limiting components can be adjusted simply by rotating the connecting shaft, making the device more convenient to use.

[0024] The auxiliary maintenance device for steel space frame provided by this utility model has the advantages of high construction safety, simple structure, convenient operation, effectively reducing the construction difficulty and labor load of operators, and realizing the stable installation of poles. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of one example of an auxiliary maintenance device for steel space frames provided by this utility model.

[0027] Figure 2 for Figure 1 A schematic diagram of a partial cross-section from another perspective.

[0028] Figure 3 for Figure 2 An enlarged view of position D1 in the middle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Steel space frame; 101. Rod; 102. Bolt ball; 103. Threaded connecting block; 1. Connecting shaft; 11. Threaded groove; 2. Limiting assembly; 21. Inner limiting plate; 211. First through hole; 22. Outer limiting plate; 221. Second through hole; 23. Limiting groove; 24. Opening groove; 3. Threaded rod; 4. First limiting nut; 5. Second limiting nut. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] See Figures 1 to 3 This utility model embodiment provides an auxiliary maintenance device for steel space frame, used for auxiliary replacement of steel space frame 100 structure. The steel space frame 100 includes members 101 and bolt balls 102 connected to both ends of the members 101. This device is mainly used for replacing the members 101 of the steel space frame 100.

[0035] Specifically, the steel space frame auxiliary replacement device includes a connecting shaft 1, a limiting component 2, and a threaded rod 3. There are two connecting shafts 1, which are located on both sides of the rod 101. There are two sets of limiting components 2, which are used to limit and clamp the bolt balls 102 at both ends of the same rod 101. The threaded rod 3 is used to connect the connecting shaft 1 and the limiting component 2 so as to adjust the distance between the two sets of limiting components 2.

[0036] It is easy to understand that in the above scheme, by setting two sets of limiting components 2, the bolt balls 102 on both sides of the same rod 101 can be limited and clamped, ensuring the stability of the two bolt balls 102 themselves; at the same time, the two sets of limiting components 2 are connected by connecting shaft 1 and threaded rod 3, so that the auxiliary replacement device of steel grid 100 can stably support the two bolt balls 102, ensuring the constant distance between the two bolt balls 102, avoiding the collapse of the entire steel grid 100 when replacing the rod 101, so that the replacement of the rod 101 between two adjacent bolt balls 102 will not affect the other rods 101 connected to the bolt balls 102 respectively, effectively improving the safety of the replacement of the rods 101 of the steel grid 100, that is, effectively improving the safety factor in the operation process.

[0037] In addition, with the help of the steel grid frame 100 auxiliary replacement device, on the one hand, the use of this device for support can effectively reduce the labor load of the operators; on the other hand, during manual operation, the distance between the two limit components 2 can be adjusted simply by rotating the connecting shaft 1, making the use of this device more convenient.

[0038] The auxiliary replacement device for steel space frame 100 provided by this utility model has the advantages of high construction safety, simple structure, convenient operation, effectively reducing the construction difficulty and labor load of operators, and realizing the stable installation of pole 101.

[0039] Of course, in other embodiments, three, four or more connecting shafts 1 can be provided to ensure that there is at least one connecting shaft 1 on each side of the rod 101, thereby ensuring stable support for the two bolt balls 102.

[0040] Specifically, each set of limiting components 2 includes an inner limiting plate 21 and an outer limiting plate 22 arranged opposite to each other; the inner limiting plate 21 is located on the side of the outer limiting plate 22 closer to the rod 101; both the inner limiting plate 21 and the outer limiting plate 22 are provided with limiting grooves 23 for limiting the bolt ball 102.

[0041] Furthermore, in order to achieve stable installation of the inner limiting plate 21, the threaded rod 3 located on the same side passes through the inner limiting plate 21 on its corresponding side; each threaded rod 3 is threaded with at least two first limiting nuts 4, and the two first limiting nuts 4 are respectively set on both sides of the inner limiting plate 21 to fix the inner limiting plate 21 in the preset position of the threaded rod 3.

[0042] Similarly, in order to achieve stable installation of the outer limiting plate 22, the threaded rod 3 located on the same side passes through the outer limiting plate 22 on its corresponding side; each threaded rod 3 is threaded with at least two second limiting nuts 5, and the two second limiting nuts 5 are respectively set on both sides of the outer limiting plate 22 to fix the outer limiting plate 22 in the preset position of the threaded rod 3.

[0043] See Figure 3 The limiting groove 23 is designed as an arc groove, and its inner wall abuts against the outer wall of the bolt ball 102. This effectively increases the contact area between the inner limiting plate 21 and the bolt ball 102, and between the outer limiting plate 22 and the bolt ball 102, making the supporting force of the inner limiting plate 21 and the outer limiting plate 22 on the bolt ball 102 more uniform, which is beneficial to maintaining the stability of the bolt ball 102. Furthermore, it is easy to understand that since the inner limiting plate 21 and the outer limiting plate 22 are symmetrically distributed about the bolt ball 102, the two limiting grooves 23 are also symmetrically distributed, further ensuring that the bolt ball 102 is subjected to uniform force.

[0044] See Figure 1 and Figure 2 The inner limiting plate 21 and the outer limiting plate 22 are set as an integral plate; the limiting groove 23 has an opening groove 24 on one side so that the inner limiting plate 21 or the outer limiting plate 22 can be snapped onto the side of the bolt ball 102.

[0045] Of course, in other embodiments, the inner limiting plate 21 and the outer limiting plate 22 can also be configured as a spliced ​​structure, which can be formed by splicing multiple plates to form the limiting groove 23. The inner limiting plate 21 and the outer limiting plate 22 can also be configured as arc-shaped plates or other structural plates, which can cooperate with the connecting shaft 1 to achieve stable support for the bolt balls 102 on both sides of the same rod 101.

[0046] See Figures 1 to 3 One method of using the aforementioned steel space frame auxiliary replacement device is as follows:

[0047] 1. Assemble the device. First, connect the threaded rod 3 to the threaded grooves 11 on both sides of the connecting shaft 1, and then install the limiting component 2 on the threaded rod 3 to complete the installation of the connecting shaft 1 and the limiting component 2. Taking the installation method of one side of the threaded rod 3 and the limiting component 2 as an example, firstly, install two first limiting nuts 4 on the two threaded rods 3 respectively; then, let the two threaded rods 3 pass through the first through hole 211 provided on the inner limiting plate 21; then, install the other two first limiting nuts 4 on the two threaded rods 3 respectively; then, install two second limiting nuts 5 on the two threaded rods 3 respectively; then, let the two threaded rods 3 pass through the second through hole 221 provided on the outer limiting plate 22; finally, install the other two second limiting nuts 5 on the two threaded rods 3 to complete the assembly of a steel grid auxiliary maintenance device.

[0048] 2. Use this device to fix and support two bolt balls 102 located on both sides of the same rod 101. That is, firstly, based on the approximate length between the two bolt balls 102, the connecting shaft 1 and the threaded rods 3 on both sides can be rotated to adjust the distance between the two limiting components 2. Then, the positions of the first limiting nut 4, the second limiting nut 5, the inner limiting plate 21, and the outer limiting plate 22 can be adjusted. Next, the rod 101 can be made to pass through the opening slot 24 so that the bolt ball 102 is located between the inner limiting plate 21 and the outer limiting plate 22. Then, by adjusting the positions of the first limiting nut 4, the second limiting nut 5, the inner limiting plate 21, and the outer limiting plate 22, the bolt ball 102 can be made to abut against the limiting slots 23 on the inner limiting plate 21 and the outer limiting plate 22 (the adjustment method of the limiting components 2 on both sides is the same and will not be described in detail). Finally, the connecting shaft 1 can be rotated relative to the threaded rod 3 to adjust the position between the limiting components 2 on both sides so that the device can provide stable support for the bolt ball 102. At this point, the rod 101 can be replaced.

[0049] It is worth noting that the rod 101 is connected to the bolt ball 102 through the threaded connecting block 103, and the threaded connecting block 103 and the bolt ball 102 are threadedly connected; the rod 101 can be configured as a telescopic locking rod structure (that is, the middle section can adopt a fastening structure, such as threaded limit or limit block for fixing), and the two ends of the rod 101 are respectively inserted into the through holes opened on the threaded connecting block 103, which facilitates the replacement and installation of the rod 101.

[0050] It is also worth noting that slots can be provided on the sides of the first through hole 211 and the second through hole 221, so that the inner limiting plate 21 and the outer limiting plate 22 can be directly slidably engaged with the threaded rod 3.

[0051] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A steel space frame auxiliary maintenance device, wherein the steel space frame (100) includes a member (101) and bolt balls (102) connected to both ends of the member (101). Its features are, include: At least two connecting shafts (1) are provided, and they are located on both sides of the rod (101); The limiting assembly (2) is provided in two sets, and is used to limit and clamp the bolt balls (102) at both ends of the same rod (101); A threaded rod (3) is used to connect the connecting shaft (1) and the limiting assembly (2) so as to adjust the distance between the two sets of the limiting assemblies (2).

2. The auxiliary maintenance device for steel space frames according to claim 1, characterized in that, Each of the limiting components (2) includes an inner limiting plate (21) and an outer limiting plate (22) that are disposed opposite to each other. The inner limiting plate (21) is located on the side of the outer limiting plate (22) closer to the rod (101); Both the inner limiting plate (21) and the outer limiting plate (22) are provided with limiting grooves (23) for limiting the bolt ball (102).

3. The auxiliary maintenance device for steel space frames according to claim 2, characterized in that, The threaded rod (3) located on the same side passes through the inner limiting plate (21) on its corresponding side. Each of the threaded rods (3) is threaded with at least two first limiting nuts (4), and the two first limiting nuts (4) are respectively disposed on both sides of the inner limiting plate (21) to fix the inner limiting plate (21) at a preset position on the threaded rod (3).

4. A steel space frame auxiliary maintenance device according to claim 2 or 3, characterized in that, The threaded rod (3) located on the same side passes through the outer limiting plate (22) on its corresponding side; Each threaded rod (3) is threaded with at least two second limiting nuts (5), which are respectively disposed on both sides of the outer limiting plate (22) to fix the outer limiting plate (22) at a preset position on the threaded rod (3).

5. The auxiliary maintenance device for steel space frames according to claim 2, characterized in that, The limiting groove (23) is configured as an arc groove, and the inner wall surface of the limiting groove (23) abuts against the outer wall surface of the bolt ball (102).

6. The auxiliary maintenance device for steel space frames according to claim 2, characterized in that, The inner limiting plate (21) and the outer limiting plate (22) are configured as an integral plate; The limiting groove (23) has an opening groove (24) on one side, so that the inner limiting plate (21) or the outer limiting plate (22) can be engaged with the bolt ball (102) on one side.

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