Fabricated steel structure floor slab

Abstract

The invention provides an assembly type steel structure floor slab, and belongs to the technical field of floor slabs, the assembly type steel structure floor slab comprises a plurality of unit plates, connecting units and adjusting units, the multiple unit plates are arranged in a line and are arranged in multiple rows, every two adjacent unit plates abut against each other, transposition cavities are formed in the side walls of the peripheries of the unit plates, and the transposition cavities are communicated with the connecting units. A transposition cavity is formed in the unit plate, a connecting block is slidably connected into the transposition cavity, the connecting block slides in the direction perpendicular to the plate face of the unit plate, a first elastic piece is fixedly connected between the connecting block and the inner wall of the transposition cavity, and the first elastic piece has pre-tightening force enabling the connecting block to slide in the first direction; the unit plate is provided with an adjusting cavity communicating with the four transposition cavities. The connecting units are arranged on the connecting blocks, and the connecting units are used for fixing the two aligned connecting blocks; and the adjusting unit is arranged in the adjusting cavity and is used for extruding the connecting block. The production cost is reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of floor slabs, specifically relating to a prefabricated steel structure floor slab. Background Technology

[0002] Prefabricated steel structure floor slabs are a type of floor slab system based on the concept of industrialized construction. They combine standardized prefabricated components in the factory with rapid on-site assembly to form a floor system that works in conjunction with the main steel structure. The core of this system is to decompose traditional cast-in-place floor slabs into modular components that can be mass-produced, such as profiled steel sheet composite floor slabs, precast concrete slabs, or light steel keel plates. The high strength of steel is used to achieve lightweight design, while the durability of concrete or the convenience of lightweight materials are combined to balance structural performance and construction efficiency.

[0003] Prefabricated steel structure floor slabs are modular building systems formed by splicing multiple unit slabs through connecting structures. The core technology of this system lies in achieving rapid construction through standardized prefabricated components. However, due to the diversity of building plan shapes and structural stresses, unit slabs face differentiated requirements in practical applications.

[0004] The positional differences of unit panels in the floor slab system directly affect their connection edge shape and mechanical performance requirements: unit panels located at the edge of the building usually only require a single-sided connection structure, while corner positions require bidirectional connection treatment, and unit panels in the central area often require a four-sided full connection design. This difference in spatial position directly leads to the need for unit panels to be configured with connection interfaces of different specifications, requiring the development of multiple sets of molds for the same project, which significantly increases production costs. Summary of the Invention

[0005] This invention provides a prefabricated steel structure floor slab, which aims to solve the technical problem of increased production costs caused by the need to develop multiple sets of molds for the same project.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a prefabricated steel structure floor slab, comprising: Multiple unit plates are arranged in a row with multiple rows. Two adjacent unit plates abut each other. Each unit plate has a switching cavity on its side wall. A connecting block is slidably connected in the switching cavity. The connecting block slides in a direction perpendicular to the surface of the unit plate. A first elastic member is fixed between the connecting block and the inner wall of the switching cavity. The first elastic member has a preload force that causes the connecting block to slide in a first direction. Each unit plate has an adjustment cavity that communicates with all four switching cavities. A connecting unit, disposed on the connecting block, the connecting unit being used to fix two relatively aligned connecting blocks; and An adjustment unit is disposed within the adjustment cavity, and the adjustment unit is used to compress the connecting block.

[0007] In one possible implementation, the connecting block has an arc-shaped cavity communicating with the outside world. The radial direction of the arc-shaped cavity is perpendicular to the sliding direction of the connecting block. Multiple arc-shaped cavities are formed along the length direction of the connecting block and are referred to as a group. The connection unit includes: Multiple connecting rings correspond one-to-one with the arc-shaped cavity. The connecting rings are slidably disposed in the arc-shaped cavity and slide along the axis of the arc-shaped cavity. Multiple ejector elements are disposed one-to-one within the arc-shaped cavity, for ejecting and retaining the connecting ring within the arc-shaped cavity; and The extension member extends in a direction parallel to the sliding direction of the connecting block, and the extension member is used to pass through the connecting ring on the adjacent unit plate.

[0008] In one possible implementation, the ejector includes an air passage and an air pump connected to the air passage.

[0009] In one possible implementation, a sealing gasket is fixed to one end of the connecting ring near the ejector, and the diameter of the sealing gasket is larger than the diameter of the arcuate cavity cross-section circle.

[0010] In one possible implementation, two sets of the arcuate cavities on the same unit board are located at a first height, and the other two sets of the arcuate cavities on the same unit board are located at a second height.

[0011] In one possible implementation, the adjustment unit includes a central roller fixed to the inner wall of the adjustment cavity, a knob rotatably connected to the central roller, and a limiting assembly connected to the knob. The axial direction of the central roller is perpendicular to the surface of the unit plate. The knob rotates about the axial direction of the central roller. The knob includes a first turntable, a second turntable, and a third turntable arranged sequentially along the axial direction of the central roller. The first turntable has four first protrusions for pressing the connecting block, the second turntable has two second protrusions for pressing the connecting block, and the third turntable has one third protrusion for pressing the connecting block. The limiting assembly is used to fix the knob.

[0012] In one possible implementation, the limiting component includes: The first limiting rod is axially parallel to the axis of the center roller, and the first limiting rod is screwed to the first turntable; The second limiting rod is parallel to the axis of the central roller, and the second limiting rod is screwed to the second turntable; The third limiting rod is axially parallel to the axis of the central roller, and the third limiting rod is screwed to the third turntable.

[0013] In one possible implementation, a first friction pad is fixed to the end of the first limiting rod away from the second turntable, a second friction pad is fixed to the end of the second limiting rod near the first turntable, and a third friction pad is fixed to the end of the third limiting rod near the second turntable.

[0014] In one possible implementation, a decorative block is slidably connected within the transposition cavity, the sliding direction of the decorative block being perpendicular to the sliding direction of the connecting block, the decorative block being used to press the connecting block, the first protrusion, the second protrusion, and the third protrusion all being used to press the decorative block, a second elastic member being fixedly connected between the decorative block and the inner wall of the transposition cavity, the second elastic member having a preload force that causes the decorative block to slide along a second direction, the second direction being perpendicular to the first direction.

[0015] In one possible implementation, the port of the adjustment cavity is covered with a cover plate, which is interference-fitted with the unit plate.

[0016] Compared with existing technologies, the prefabricated steel structure floor slab provided by this invention features a unique design. When the adjusting unit compresses the connecting block, the connecting block remains in the retracted position, and that side is unconnected. When the adjusting unit does not compress the connecting block, the first elastic element releases its elastic force, causing the connecting block to extend, and that side becomes connected. Adjacent connecting blocks are then fixed by the connecting unit. Construction workers can selectively compress the adjusting unit to dynamically configure the connection state of the four sides of the unit slab. Activating one side creates an edge slab structure, activating both sides orthogonally adapts to corner slab requirements, and releasing all four sides creates a central connecting slab. This allows a single-specification unit slab to meet the connection requirements of any location on the building plan through on-site adjustment, reducing production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the prefabricated steel structure floor slab according to an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the structure of two unit boards being spliced ​​together, provided as an embodiment of the present invention. Figure 3 This is a partial cross-sectional view illustrating the limiting component in an embodiment of the present invention; Figure 4 This is a partial cross-sectional view illustrating the fixing method of the two connecting blocks in an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the structure of the protruding member inserted into the connecting ring according to an embodiment of the present invention; Figure 6 This is a partial cross-sectional view illustrating the extension method of the connecting ring in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 10. Unit plate; 101. Transposition cavity; 102. First elastic element; 103. Adjustment cavity; 104. Decorative block; 105. Second elastic element; 106. Cover plate; 20. Connecting unit; 201. Connecting block; 2011. Arc-shaped cavity; 202. Connecting ring; 2021. Sealing gasket; 203. Air pump; 204. Air passage; 205. Protrusion; 30. Adjustment unit; 301. Center roller; 302. First turntable; 3021. First protrusion; 3022. First limiting rod; 30221. First friction pad; 303. Second turntable; 3031. Second protrusion; 3032. Second limiting rod; 30321. Second friction pad; 304. Third turntable; 3041. Third protrusion; 3042. Third limiting rod; 30421. Third friction pad. Detailed Implementation

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] Please refer to the following: Figures 1 to 6 This invention describes a prefabricated steel structure floor slab. A prefabricated steel structure floor slab includes multiple unit plates 10, connecting units 20, and adjusting units 30. The multiple unit plates 10 are arranged in a row, with adjacent unit plates 10 abutting against each other. Each unit plate 10 has a displacement cavity 101 on its sidewalls. A connecting block 201 is slidably connected within the displacement cavity 101, sliding along a direction perpendicular to the surface of the unit plate 10. A first elastic member 102 is fixed between the connecting block 201 and the inner wall of the displacement cavity 101, the first elastic member 102 having a preload force that causes the connecting block 201 to slide along a first direction. Each unit plate 10 has an adjusting cavity 103 communicating with all four displacement cavities 101. The connecting unit 20 is disposed within the connecting block 201 and is used to fix two relatively aligned connecting blocks 201. The adjusting unit 30 is disposed within the adjusting cavity 103 and is used to compress the connecting block 201.

[0021] It should be noted that the first elastic element 102 is a spring rod, and the first elastic element 102 has a multi-stage telescopic structure.

[0022] Compared with the prior art, the prefabricated steel structure floor slab provided in this embodiment has the following advantages: When the adjusting unit 30 presses the connecting block 201, the connecting block 201 remains in the retracted position, and that side is in an unconnected state; when the adjusting unit 30 does not press the connecting block 201, the first elastic member 102 releases its elastic force to drive the connecting block 201 to extend, and that side is in a connected state. The connecting unit 20 fixes two adjacent connecting blocks 201 together. Construction personnel can selectively press the adjusting unit 30 to dynamically configure the connection state of the four sides of the unit plate 10. That is, when one side is activated, an edge plate structure is formed; when both sides are orthogonally activated, corner plate requirements are met; and when all four sides are fully released, it becomes a central connecting plate. This allows a single-specification unit plate 10 to meet the connection form requirements of any position in the building plan through on-site adjustment, reducing production costs.

[0023] In some embodiments, see Figure 5 The connecting block 201 has an arc-shaped cavity 2011 communicating with the outside. The radial direction of the arc-shaped cavity 2011 is perpendicular to the sliding direction of the connecting block 201. Multiple arc-shaped cavities 2011 are formed along the length of the connecting block 201. The connecting unit 20 includes multiple connecting rings 202, multiple push-out members, and extension members 205. The multiple connecting rings 202 correspond one-to-one with the arc-shaped cavities 2011. The connecting rings 202 slide in the arc-shaped cavities 2011 and slide along the axis of the arc-shaped cavities 2011. The multiple push-out members are correspondingly arranged in the arc-shaped cavities 2011 and are used to push the connecting rings 202 out of the arc-shaped cavities 2011 and hold them. The extension and retraction direction of the extension members 205 is parallel to the sliding direction of the connecting block 201. The extension members 205 are used to pass through the connecting rings 202 on the adjacent unit plates 10.

[0024] Specifically, the ejector includes an air passage 204 and an air pump 203 connected to the air passage 204.

[0025] It should be noted that the protruding part 205 can be a telescopic cylinder, an electric cylinder, or a hydraulic cylinder.

[0026] After the adjacent unit plates 10 are aligned, the operator starts the air pump 203 to inject compressed gas into the arc-shaped cavity 2011. The air pressure push overcomes the static friction between the connecting ring 202 and the inner wall of the arc-shaped cavity 2011, pushing the connecting ring 202 to slide outward along the axis of the arc-shaped cavity 2011 until the connecting ring 202 extends into the transposition cavity 101 of the adjacent unit plate 10. Then the extension 205 starts to extend and inserts into the corresponding connecting ring 202, thereby connecting and fixing the two adjacent unit plates 10.

[0027] When two adjacent unit plates 10 need to be disassembled, the air pump 203 works in reverse to draw in gas, the pressure inside the arc-shaped cavity 2011 drops to a negative pressure state, and the connecting ring 202 slides back to its initial position along the arc-shaped cavity 2011 under the action of negative pressure. At the same time, the protruding part 205 starts to restore its initial length.

[0028] In some embodiments, see Figure 5 A sealing gasket 2021 is fixed to one end of the connecting ring 202 near the ejector, and the diameter of the sealing gasket 2021 is larger than the diameter of the circular cross-section of the arc cavity 2011.

[0029] The sealing gasket 2021 is interference-fitted with the arc-shaped cavity 2011, which can maintain the airtightness of the arc-shaped cavity 2011, thereby maintaining the stability of the air pressure inside the arc-shaped cavity 2011.

[0030] In some embodiments, two sets of arc-shaped cavities 2011 on the same unit plate 10 are located at a first height, and the other two sets of arc-shaped cavities 2011 on the same unit plate 10 are located at a second height.

[0031] Two sets of arc-shaped cavities 2011 with different heights are set up to obtain two sets of connecting rings 202 with different heights. Thus, when the two unit plates 10 are spliced ​​together, the two sets of connecting rings 202 with different heights on the two unit plates 10 can be used together. When the extension 205 starts to extend, it passes through the two staggered connecting rings 202 at the same time.

[0032] In some embodiments, see Figure 2 and Figure 3 The adjustment unit 30 includes a central roller 301 fixed to the inner wall of the adjustment cavity 103, a knob rotatably connected to the central roller 301, and a limiting component connected to the knob. The axial direction of the central roller 301 is perpendicular to the surface of the unit plate 10. The knob rotates about the axial direction of the central roller 301. The knob includes a first turntable 302, a second turntable 303, and a third turntable 304 arranged sequentially along the axial direction of the central roller 301. The first turntable 302 has four first protrusions 3021 for pressing the connecting block 201. The second turntable 303 has two second protrusions 3031 for pressing the connecting block 201. The third turntable 304 has one third protrusion 3041 for pressing the connecting block 201. The limiting component is used to fix the knob.

[0033] Specifically, the limiting assembly includes a first limiting rod 3022, a second limiting rod 3032, and a third limiting rod 3042. The axial direction of the first limiting rod 3022 is parallel to the axial direction of the center roller 301, and the first limiting rod 3022 is screwed to the first turntable 302. The axial direction of the second limiting rod 3032 is parallel to the axial direction of the center roller 301, and the second limiting rod 3032 is screwed to the second turntable 303. The axial direction of the third limiting rod 3042 is parallel to the axial direction of the center roller 301, and the third limiting rod 3042 is screwed to the third turntable 304.

[0034] Specifically, the end of the first limiting rod 3022 away from the second turntable 303 is fixedly connected to the first friction pad 30221, the end of the second limiting rod 3032 close to the first turntable 302 is fixedly connected to the second friction pad 30321, and the end of the third limiting rod 3042 close to the second turntable 303 is fixedly connected to the third friction pad 30421.

[0035] The operator rotates the first turntable 302 until all four first protrusions 3021 are moved away from the connecting block 201, and stops rotating the first turntable 302 after all four connecting blocks 201 are in the extended state. If it is necessary for all four sides of the unit plate 10 to be connected at this time, the operation is stopped; if it is necessary for three sides of the unit plate 10 to be connected, the operator starts rotating the third turntable 304 until one of the connecting blocks 201 is pressed back into the switching cavity 101 by the third protrusion 3041; if it is necessary for the two orthogonal sides of the unit plate 10 to be connected, the operator starts rotating the second turntable 303 until two of the orthogonal connecting blocks 201 are pressed back into the switching cavity 101 by the second protrusion 3031.

[0036] After the operation is completed, the operator rotates the first limiting rod 3022 so that the first friction pad 30221 abuts against the inner bottom wall of the adjusting cavity 103, thereby fixing the first turntable 302; then the operator rotates the second limiting rod 3032 so that the second friction pad 30321 abuts against the first turntable 302; finally, the operator rotates the third limiting rod 3042 so that the third friction pad 30421 abuts against the third turntable 304.

[0037] In some embodiments, see Figure 2 and Figure 4 A decorative block 104 is slidably connected inside the transposition cavity 101. The sliding direction of the decorative block 104 is perpendicular to the sliding direction of the connecting block 201. The decorative block 104 is used to press the connecting block 201. The first protrusion 3021, the second protrusion 3031 and the third protrusion 3041 are all used to press the decorative block 104. A second elastic member 105 is fixed between the decorative block 104 and the inner wall of the transposition cavity 101. The second elastic member 105 has a pre-tightening force that causes the decorative block 104 to slide along a second direction. The second direction is perpendicular to the first direction.

[0038] It should be noted that the second elastic element 105 is a spring rod, and the second elastic element 105 has a multi-stage telescopic structure.

[0039] When the decorative block 104 is in a compressed state, the decorative block 104 is aligned with the outer wall of the unit plate 10, so that there is no groove on the outer peripheral surface of the unit plate 10 and the outer peripheral surface of the unit plate 10 is flat when it is not in a connected state; when the decorative block 104 is in a non-compressed state, the decorative block 104 retracts and no longer compresses the connecting block 201, and the connecting block 201 is released to the position to be connected.

[0040] In some embodiments, the port of the adjustment cavity 103 is covered by a cover plate 106, which is interference-fitted with the unit plate 10.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated steel structure floor slab, characterized in that, include: Multiple unit plates (10) are arranged in a row with multiple rows. Two adjacent unit plates (10) abut against each other. Each unit plate (10) has a switching cavity (101) on its side wall. A connecting block (201) is slidably connected in the switching cavity (101). The connecting block (201) slides in a direction perpendicular to the surface of the unit plate (10). A first elastic member (102) is fixed between the connecting block (201) and the inner wall of the switching cavity (101). The first elastic member (102) has a preload force that causes the connecting block (201) to slide in a first direction. Each unit plate (10) has an adjustment cavity (103) that communicates with all four switching cavities (101). A connecting unit (20) is disposed on the connecting block (201), the connecting unit (20) being used to fix two relatively aligned connecting blocks (201); and An adjustment unit (30) is disposed in the adjustment cavity (103), and the adjustment unit (30) is used to press the connecting block (201).

2. The prefabricated steel structure floor slab as described in claim 1, characterized in that, The connecting block (201) has an arc-shaped cavity (2011) communicating with the outside. The radial direction of the arc-shaped cavity (2011) is perpendicular to the sliding direction of the connecting block (201). Multiple arc-shaped cavities (2011) are formed along the length of the connecting block (201) and are referred to as a group. The connection unit (20) includes: Multiple connecting rings (202) correspond one-to-one with the arc-shaped cavity (2011). The connecting rings (202) are slidably disposed in the arc-shaped cavity (2011) and slide along the axis of the arc-shaped cavity (2011). Multiple ejector elements are correspondingly disposed within the arc-shaped cavity (2011) to eject and retain the connecting ring (202) from the arc-shaped cavity (2011); and The extension member (205) extends in a direction parallel to the sliding direction of the connecting block (201) and is used to pass through the connecting ring (202) on the adjacent unit plate (10).

3. The prefabricated steel structure floor slab as described in claim 2, characterized in that, The ejector includes an air passage (204) and an air pump (203) connected to the air passage (204).

4. The prefabricated steel structure floor slab as described in claim 3, characterized in that, A sealing gasket (2021) is fixed to one end of the connecting ring (202) near the ejector, and the diameter of the sealing gasket (2021) is larger than the diameter of the cross-sectional circle of the arc cavity (2011).

5. The prefabricated steel structure floor slab as described in claim 2, characterized in that, Two sets of the arcuate cavities (2011) on the same unit plate (10) are located at a first height, and the other two sets of the arcuate cavities (2011) on the same unit plate (10) are located at a second height.

6. The prefabricated steel structure floor slab as described in claim 1, characterized in that, The adjustment unit (30) includes a central roller (301) fixed to the inner wall of the adjustment cavity (103), a knob rotatably connected to the central roller (301), and a limiting component connected to the knob. The axial direction of the central roller (301) is perpendicular to the surface of the unit plate (10). The knob rotates about the axial direction of the central roller (301). The knob includes a first turntable (302), a second turntable (303), and a third turntable (304) arranged sequentially along the axial direction of the central roller (301). The first turntable (302) has four first protrusions (3021) for pressing the connecting block (201). The second turntable (303) has two second protrusions (3031) for pressing the connecting block (201). The third turntable (304) has one third protrusion (3041) for pressing the connecting block (201). The limiting component is used to fix the knob.

7. The prefabricated steel structure floor slab as described in claim 6, characterized in that, The limiting component includes: The first limiting rod (3022) is axially parallel to the axis of the center roller (301), and the first limiting rod (3022) is screwed to the first turntable (302); The second limiting rod (3032) is axially parallel to the axis of the center roller (301), and the second limiting rod (3032) is screwed to the second turntable (303); The third limiting rod (3042) is axially parallel to the axis of the center roller (301), and the third limiting rod (3042) is screwed to the third turntable (304).

8. The prefabricated steel structure floor slab as described in claim 7, characterized in that, The first limiting rod (3022) is fixedly connected to a first friction pad (30221) at the end away from the second turntable (303), the second limiting rod (3032) is fixedly connected to a second friction pad (30321) at the end near the first turntable (302), and the third limiting rod (3042) is fixedly connected to a third friction pad (30421) at the end near the second turntable (303).

9. The prefabricated steel structure floor slab as described in claim 6, characterized in that, A decorative block (104) is slidably connected inside the transposition cavity (101). The sliding direction of the decorative block (104) is perpendicular to the sliding direction of the connecting block (201). The decorative block (104) is used to press the connecting block (201). The first protrusion (3021), the second protrusion (3031), and the third protrusion (3041) are all used to press the decorative block (104). A second elastic member (105) is fixed between the decorative block (104) and the inner wall of the transposition cavity (101). The second elastic member (105) has a preload force that causes the decorative block (104) to slide along a second direction, which is perpendicular to the first direction.

10. The prefabricated steel structure floor slab as described in claim 1, characterized in that, The port of the adjustment cavity (103) is covered by a cover plate (106), which is interference-fitted with the unit plate (10).

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