Modularized steel pipe truss laminated slab connecting structure

Abstract

The utility model discloses a modularized steel pipe truss laminated slab connecting structure, and relates to the technical field of building construction. The truss comprises a truss body, a supporting plate is fixedly connected to the upper end of the truss body, L-shaped clamping plates are fixedly connected to the two sides of the supporting plate, two matched laminated plates are arranged on the L-shaped clamping plates, matching grooves are formed in the opposite sides of the two laminated plates, a mounting plate is fixedly connected to the upper side of the supporting plate, and an assembling groove is formed in the mounting plate. And a limiting mechanism is arranged in the assembling groove. Through the cooperative design of the limiting mechanism and the L-shaped clamping plate, rapid positioning of the laminated slab is achieved, manual calibration steps are reduced, uniform distribution of pre-tightening force is ensured through the self-locking characteristic of the bidirectional lead screw and the worm and gear drive, the problem of stress concentration of traditional bolt connection is avoided, the pre-tightening force can be adjusted by rotating a rotary knob, and the working efficiency is improved. Node maintenance can be completed without dismounting the laminated slab, and later maintenance and replacement are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically, it relates to a modular steel pipe truss composite plate connection structure. Background Technology

[0002] Modular construction, with its significant advantages of industrialized production, rapid assembly, and green environmental protection, has become an important direction for the upgrading of the modern construction industry. As a core component of modular construction, the connection structure between steel pipe trusses and composite slabs directly determines the overall mechanical performance and construction efficiency of the building.

[0003] Traditional connection methods often use bolt fastening or welding. Bolt fastening requires on-site drilling for positioning, while welding carries the risk of thermal deformation. These methods are difficult to meet the needs of high-precision industrial production and have problems such as high installation accuracy requirements, low construction efficiency, and stress concentration at connection nodes.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a modular steel pipe truss composite plate connection structure.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A modular steel pipe truss composite plate connection structure includes: a truss body, a support plate fixedly connected to the upper end of the truss body, L-shaped clamping plates fixedly connected to both sides of the support plate, two mating composite plates provided on the L-shaped clamping plates, mating grooves provided on opposite sides of the two composite plates, an mounting plate fixedly connected to the upper side of the support plate, an assembly groove provided inside the mounting plate, a limit mechanism provided inside the assembly groove, an installation groove provided on one side of the inner wall of the assembly groove, and a drive component that cooperates with the limit mechanism provided inside the installation groove.

[0008] By setting a limit mechanism and an L-shaped clamping plate, the composite plate can be quickly positioned, reducing manual calibration steps. The self-locking characteristics of the bidirectional lead screw and worm gear drive ensure uniform distribution of preload, avoiding stress concentration problems in traditional bolt connections. Furthermore, the preload can be adjusted by rotating the knob, and node inspection can be completed without disassembling the composite plate, facilitating future maintenance and replacement.

[0009] Preferably, the limiting mechanism includes a bidirectional lead screw rotatably fitted on the inner wall of the assembly groove, two trapezoidal clamping blocks threaded onto the bidirectional lead screw, a trapezoidal block slidably fitted on the inner wall of the assembly groove, connecting plates fixedly connected to both sides of the trapezoidal block, a limiting pressure plate fixedly connected to the lower side of the connecting plate, and two springs provided on the lower side of the trapezoidal block.

[0010] Preferably, two trapezoidal clamping blocks are slidably fitted on the inner wall of the assembly groove, a connecting plate is slidably fitted on the inner wall of the assembly groove, the two ends of the spring are fixedly connected to the lower side of the connecting plate and the lower side of the inner wall of the assembly groove, respectively, and one end of the bidirectional lead screw is rotatably fitted on one side of the inner wall of the mounting groove.

[0011] Preferably, the drive assembly includes a worm gear rotatably fitted on the lower side of the inner wall of the mounting groove, a worm wheel fixedly connected to the bidirectional lead screw, and a knob fixedly connected to the upper end of the worm gear.

[0012] Preferably, the worm is meshed with the worm wheel, and the upper end of the worm extends to the upper side of the mounting plate.

[0013] Preferably, the lower side of the composite plate is provided with multiple threaded sleeves, and the lower side of the L-shaped clamping plate is threaded with multiple locking bolts, which are threadedly engaged with the threaded sleeves.

[0014] Preferably, the upper side of the support plate is fixedly connected with multiple limiting rods, and the lower side of the composite plate is provided with a limiting groove that cooperates with the limiting rods.

[0015] Preferably, the upper side of the support plate is provided with two shock-absorbing pads that cooperate with the composite plate.

[0016] Preferably, a fixing plate is fixedly connected to the lower side of the truss body, and multiple positioning holes are opened on the upper side of the fixing plate.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] By setting up a limit mechanism and an L-shaped clamping plate, the collaborative design enables rapid positioning of the composite plate, reducing manual calibration steps. The self-locking characteristics of the bidirectional lead screw and worm gear drive ensure uniform distribution of preload, avoiding stress concentration problems in traditional bolt connections. Furthermore, the preload can be adjusted by rotating the knob, allowing for node inspection without disassembling the composite plate, facilitating future maintenance and replacement.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] In the picture:

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of a composite plate structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the mounting plate connection structure according to an embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional structural diagram of the mounting plate according to an embodiment of the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Truss main body; 2. Support plate; 3. L-shaped clamping plate; 4. Composite plate; 5. Mating groove; 6. Mounting plate; 7. Assembly groove; 8. Limiting mechanism; 81. Two-way lead screw; 82. Trapezoidal clamping block; 83. Trapezoidal block; 84. Connecting plate; 85. Limiting pressure plate; 86. Spring; 9. Mounting groove; 10. Drive assembly; 101. Worm gear; 102. Worm wheel; 103. Knob; 11. Threaded sleeve; 12. Locking bolt; 13. Limiting rod; 14. Limiting groove; 15. Shock-absorbing pad; 16. Fixing plate; 17. Positioning hole.

[0028] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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 on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] Example 1

[0038] Please refer to Figure 1-4 A modular steel pipe truss composite plate connection structure includes: a truss body 1, a support plate 2 fixedly connected to the upper end of the truss body 1, L-shaped clamping plates 3 fixedly connected to both sides of the support plate 2, two mating composite plates 4 provided on the L-shaped clamping plates 3, and mating grooves 5 opened on opposite sides of the two composite plates 4; an mounting plate 6 fixedly connected to the upper side of the support plate 2, an assembly groove 7 opened inside the mounting plate 6, a limiting mechanism 8 provided inside the assembly groove 7, and an installation groove 9 opened on one side of the inner wall of the assembly groove 7, with a driving component 10 cooperating with the limiting mechanism 8 inside the installation groove 9; multiple threaded sleeves 11 provided on the lower side of the composite plates 4, and multiple locking bolts 12 threadedly engaged on the lower side of the L-shaped clamping plates 3, with the locking bolts 12 threadedly engaged with the threaded sleeves 11; multiple limiting rods 13 fixedly connected to the upper side of the support plate 2, and limiting grooves 14 cooperating with the limiting rods 13 opened on the lower side of the composite plates 4. Two shock-absorbing pads 15 are provided on the upper side of the support plate 2 to cooperate with the composite plate 4. A fixing plate 16 is fixedly connected to the lower side of the truss body 1, and multiple positioning holes 17 are opened on the upper side of the fixing plate 16.

[0039] Implementation process: The composite plate 4 is initially aligned with the limiting rod 13 on the support plate 2 through the limiting groove 14 opened at the bottom. At the same time, the horizontal flange of the L-shaped clamping plate 3 is engaged with the mating groove 5 at the bottom of the composite plate 4 to limit the horizontal displacement of the composite plate 4. At this stage, the composite plate 4 can be quickly positioned without complicated calibration. After the limiting pressure plate 85 is pre-tightened, it is mechanically locked with the threaded sleeve 11 under the composite plate 4 by the locking bolt 12 at the bottom of the L-shaped clamping plate 3, forming a double fixing structure. The self-locking characteristic of the worm gear 101 and worm wheel 102 transmission can prevent the bidirectional screw 81 from rotating in the opposite direction due to vibration or external force, ensuring the long-term stability of the connection node. The shock-absorbing pad 15 on the support plate 2 is made of highly elastic material (such as rubber or polyurethane) to form a flexible buffer layer between the composite plate 4 and the support plate 2, effectively absorbing structural vibration energy, reducing noise transmission, and improving the comfort of building use.

[0040] Benefits of implementation: The limiting rod 13 (horizontal limiting), the limiting pressure plate 85 (vertical limiting), and the locking bolt 12 (mechanical locking) constitute a three-dimensional limiting system, which improves the shear bearing capacity of the nodes.

[0041] Example 2

[0042] The limiting mechanism 8 includes a bidirectional lead screw 81 rotatably engaged with the inner wall of the assembly groove 7. Two trapezoidal clamping blocks 82 are threaded onto the bidirectional lead screw 81. A trapezoidal block 83 is slidably engaged with the inner wall of the assembly groove 7. Connecting plates 84 are fixedly connected to both sides of the trapezoidal block 83. A limiting pressure plate 85 is fixedly connected to the lower side of the connecting plate 84. Two springs 86 are provided on the lower side of the trapezoidal block 83. The two trapezoidal clamping blocks 82 are slidably engaged with the inner wall of the assembly groove 7, the connecting plate 84 is slidably engaged with the inner wall of the assembly groove 7, and the two ends of the springs 86 are fixedly connected to the lower side of the connecting plate 84 and the lower side of the inner wall of the assembly groove 7, respectively. One end of the bidirectional lead screw 81 is rotatably engaged with one side of the inner wall of the mounting groove 9. The drive assembly 10 includes a worm gear 101 rotatably engaged with the lower side of the inner wall of the mounting groove 9. A worm wheel 102 is fixedly connected to the bidirectional lead screw 81, and a knob 103 is fixedly connected to the upper end of the worm gear 101. The worm 101 is meshed with the worm wheel 102, and the upper end of the worm 101 extends to the upper side of the mounting plate 6.

[0043] Implementation process: Rotate the knob 103 on the top of the mounting plate 6 to drive the worm gear 101 to rotate. The worm gear 101 drives the bidirectional lead screw 81 to rotate synchronously through the worm wheel 102. The forward and reverse threads of the bidirectional lead screw 81 cause the two trapezoidal clamping blocks 82 to move towards each other along the lead screw axis, squeezing the trapezoidal block 83 to move downward. The trapezoidal block 83 pushes the limiting pressure plate 85 through the connecting plate 84 to press the upper surface of the composite plate 4, while compressing the spring 86 below. The spring 86 provides a continuous elastic preload to compensate for the slight deformation of the composite plate 4 caused by temperature changes or load. The spring 86 also assists in resetting after releasing the external force.

[0044] Benefits of implementation: The self-locking characteristics of the worm gear 102 and worm 101 transmission and the synchronous drive of the bidirectional lead screw 81 shorten the clamping operation time of a single connection node and improve installation efficiency. The inclined surface design of the trapezoidal clamping block 82 and trapezoidal block 83 converts the rotational motion of the lead screw into vertical pressure, achieves uniform loading, and ensures full contact between the composite plate 4 and the support plate 2.

[0045] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A modular steel pipe truss composite plate connection structure, characterized in that, include: The truss body (1) has a support plate (2) fixedly connected to its upper end. L-shaped clamping plates (3) are fixedly connected to both sides of the support plate (2). Two mating plates (4) are provided on the L-shaped clamping plates (3). A mating groove (5) is provided on the opposite side of the two mating plates (4). An mounting plate (6) is fixedly connected to the upper side of the support plate (2). An assembly groove (7) is provided inside the mounting plate (6). A limit mechanism (8) is provided inside the assembly groove (7). An installation groove (9) is provided on one side of the inner wall of the assembly groove (7). A drive assembly (10) that cooperates with the limit mechanism (8) is provided inside the installation groove (9).

2. The modular steel pipe truss composite plate connection structure according to claim 1, characterized in that, The limiting mechanism (8) includes a two-way lead screw (81) rotatably fitted on the inner wall of the assembly groove (7), two trapezoidal clamps (82) threaded on the two-way lead screw (81), a trapezoidal block (83) slidably fitted on the inner wall of the assembly groove (7), a connecting plate (84) fixedly connected to both sides of the trapezoidal block (83), a limiting pressure plate (85) fixedly connected to the lower side of the connecting plate (84), and two springs (86) provided on the lower side of the trapezoidal block (83).

3. The modular steel pipe truss composite plate connection structure according to claim 2, characterized in that, Two trapezoidal clamps (82) are slidably fitted on the inner wall of the assembly groove (7), the connecting plate (84) is slidably fitted on the inner wall of the assembly groove (7), the two ends of the spring (86) are fixedly connected to the lower side of the connecting plate (84) and the lower side of the inner wall of the assembly groove (7) respectively, and one end of the double-acting screw (81) is rotatably fitted on one side of the inner wall of the mounting groove (9).

4. The modular steel pipe truss composite plate connection structure according to claim 2, characterized in that, The drive assembly (10) includes a worm (101) rotatably fitted on the lower side of the inner wall of the mounting groove (9), a worm wheel (102) fixedly connected to the double-acting screw (81), and a knob (103) fixedly connected to the upper end of the worm (101).

5. The modular steel pipe truss composite plate connection structure according to claim 4, characterized in that, The worm (101) is meshed with the worm wheel (102), and the upper end of the worm (101) extends to the upper side of the mounting plate (6).

6. The modular steel pipe truss composite plate connection structure according to claim 1, characterized in that, Multiple threaded sleeves (11) are provided on the lower side of the composite plate (4), and multiple locking bolts (12) are threadedly engaged on the lower side of the L-shaped clamping plate (3). The locking bolts (12) are threadedly engaged with the threaded sleeves (11).

7. The modular steel pipe truss composite plate connection structure according to claim 1, characterized in that, Multiple limiting rods (13) are fixedly connected to the upper side of the support plate (2), and a limiting groove (14) that cooperates with the limiting rods (13) is opened on the lower side of the composite plate (4).

8. The modular steel pipe truss composite plate connection structure according to claim 1, characterized in that, Two shock-absorbing pads (15) are provided on the upper side of the support plate (2) to cooperate with the composite plate (4).

9. The modular steel pipe truss composite plate connection structure according to claim 1, characterized in that, A fixing plate (16) is fixedly connected to the lower side of the truss body (1), and multiple positioning holes (17) are opened on the upper side of the fixing plate (16).

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