A double-slot mounting structure of SPC floor
Patent Information
- Application Number
- CN202522168006.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-10-14
AI Technical Summary
[0003]常见的SPC地板双卡槽安装结构,仅能够将两块SPC地板拼接在一起,但缺乏防连带隆起的功能,实际使用中,当一块SPC地板因热胀冷缩导致局部隆起时,会带动插入其卡槽内的一体化长条形卡条的对应部分隆起,而卡条的整体性又会牵引未隆起的卡条部分,从而拉动与之连接的相邻地板板块产生轻微隆起,最终导致实际隆起范围扩大、恢复周期延长,大幅增加了维修难度和使用风险
[0015] This invention achieves multi-point independent locking by setting multiple independent and staggered lower and upper locking slots, in conjunction with corresponding staggered lower and upper locking blocks. This effectively prevents the transmission of local bulging stress caused by the thermal expansion and contraction of a single floorboard to adjacent areas or adjacent floorboards through the traditional integrated long locking strip, significantly blocking the cascading bulging effect. At the same time, the arc-shaped groove in the locking slot and the anti-slip arc pad on the surface of the locking block form an arc surface contact that increases friction, enhances the tightness of the locking and the pull-out resistance, and improves the overall stability and recovery ability.
Smart Images

Figure CN224729273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of SPC flooring technology, and more specifically, to a dual-slot installation structure for SPC flooring. Background Technology
[0002] SPC stone plastic flooring, with its superior physical properties, especially in high-intensity, high-frequency use environments, has become the ideal flooring solution for such scenarios. Its core competitiveness stems from a key characteristic: its exceptional wear resistance. This strong wear resistance ensures that the floor surface remains as good as new, effectively avoiding the appearance of scratches and common wear and tear loss, thus maintaining its beautiful appearance and texture from its initial installation for a long time.
[0003] The common double-slot installation structure for SPC flooring can only splice two SPC floorboards together, but it lacks the function of preventing cascading bulges. In actual use, when one SPC floorboard bulges due to thermal expansion and contraction, it will cause the corresponding part of the integrated long strip inserted in its slot to bulge. The overall structure of the strip will then pull the non-bulging part of the strip, thereby pulling the adjacent floorboard connected to it to bulge slightly. Ultimately, this will lead to an expansion of the actual bulge area, a longer recovery period, and a significant increase in maintenance difficulty and usage risk.
[0004] In summary, in order to effectively block the transmission of chain deformation caused by thermal expansion and contraction and improve the stability of the flooring system, it is necessary to solve the problem of cascading bulges caused by the integrated long strip clamping structure. This will prevent the local deformation of a single board from being transmitted to other undeformed areas of the board or adjacent boards through the rigid clamping strip, thereby ensuring the overall flatness and reliability of the floor. Utility Model Content
[0005] The present invention provides a dual-slot installation structure for SPC flooring, which aims to solve the problem that the integrity of the integrated card strip will pull the non-bulging part of the card strip, thereby pulling the adjacent floorboards connected to it to produce a slight bulge, ultimately leading to an expansion of the actual bulge area and a longer recovery period.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-slot installation structure for SPC flooring, including a stone plastic floor, with multiple lower slots and multiple upper slots at the rear end of the stone plastic floor, each of the lower and upper slots having two symmetrically arranged arc-shaped grooves inside, multiple lower and upper slots installed at the front end of the stone plastic floor, the lower and upper slots being staggered, and two anti-slip arc pads symmetrically installed on the surfaces of both the lower and upper slots, a built-in mechanism on the stone plastic floor, and an anti-offset mechanism on the stone plastic floor.
[0007] In a preferred embodiment, the built-in mechanism is used to ensure the flatness and thermal insulation performance of the stone plastic flooring. The built-in mechanism includes an internal support component and an insulation component. The internal support component is used to support the stone plastic flooring from the inside, and the insulation component is used to keep the indoor temperature warm.
[0008] In a preferred embodiment, the internal support assembly includes a lower internal cavity formed inside the stone-plastic floor and a reinforcing steel plate installed inside the lower internal cavity.
[0009] In a preferred embodiment, the insulation component includes an upper inner cavity formed inside the stone plastic floor and an insulation board installed inside the upper inner cavity.
[0010] In a preferred embodiment, the anti-deviation mechanism is used to limit the position of the stone plastic flooring. The anti-deviation mechanism includes a fixing assembly and a locking assembly. The mating end of the fixing assembly is connected to the locking assembly. The fixing assembly is used to fix the stone plastic flooring to the ground, and the locking assembly is used to limit the position of the stone plastic flooring.
[0011] In a preferred embodiment, the mounting bracket assembly includes a base plate disposed at the lower end of the SPC floor and a plurality of anti-offset clips mounted on the upper end of the base plate.
[0012] In a preferred embodiment, the locking assembly includes a plurality of anti-offset slots formed at the lower end of the SPC flooring, with the upper end of the anti-offset strip engaging inside the anti-offset slots.
[0013] In a preferred embodiment, a textured panel is installed on the upper end of the stone plastic flooring, and multiple fixing holes are provided on the upper end of the base plate.
[0014] The beneficial effects of this utility model are as follows:
[0015] This invention achieves multi-point independent locking by setting multiple independent and staggered lower and upper locking slots, in conjunction with corresponding staggered lower and upper locking blocks. This effectively prevents the transmission of local bulging stress caused by the thermal expansion and contraction of a single floorboard to adjacent areas or adjacent floorboards through the traditional integrated long locking strip, significantly blocking the cascading bulging effect. At the same time, the arc-shaped groove in the locking slot and the anti-slip arc pad on the surface of the locking block form an arc surface contact that increases friction, enhances the tightness of the locking and the pull-out resistance, and improves the overall stability and recovery ability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.
[0018] Figure 3This is a schematic diagram of the base plate structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the exploded structure of the stone-plastic flooring of this utility model.
[0020] Figure 5 This is a schematic diagram of the stone-plastic flooring structure of this utility model.
[0021] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.
[0022] The attached diagram is labeled as follows: 1. Stone plastic flooring; 11. Lower slot; 12. Upper slot; 13. Arc groove; 14. Lower block; 15. Upper block; 16. Anti-slip arc pad; 17. Textured board; 18. Fixing hole; 211. Lower inner cavity; 212. Reinforcing steel plate; 221. Upper inner cavity; 222. Insulation board; 311. Base plate; 312. Anti-offset strip; 321. Anti-offset slot. Detailed Implementation
[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0024] Refer to the instruction manual appendix Figures 1 to 6 A dual-slot installation structure for SPC flooring includes a stone-plastic flooring 1. The rear end of the stone-plastic flooring 1 has multiple lower slots 11 and multiple upper slots 12. Both the lower and upper slots 11 and 12 have two symmetrically arranged arc-shaped grooves 13. The front end of the stone-plastic flooring 1 has multiple lower blocks 14 and multiple upper blocks 15. The lower and upper blocks 14 are installed in a staggered manner. Both lower and upper blocks 14 and 15 have two symmetrically arranged anti-slip arc pads 16 on their surfaces. The stone-plastic flooring 1 has an internal mechanism and an anti-displacement mechanism.
[0025] It should be noted that the lower slot 11 and upper slot 12 at the rear end of the stone plastic floor 1 are independent slots, and the corresponding lower slot 14 and upper slot 15 at the front end are also independent protrusions. The positions of these slots correspond one-to-one with the slots. The lower slot 14 and upper slot 15 are installed in a staggered manner, that is, not on the same longitudinal straight line. This layout significantly improves the dispersion and strength of the connection points. The two symmetrical arc grooves 13 inside each slot cooperate with the two anti-slip arc pads 16 on the surface of the slot. The arc contact increases the friction and improves the tightness of the connection and the ability to resist pull-out.
[0026] It is worth noting that this design completely abandons the traditional one-piece long clip. When a piece of stone plastic flooring 1 bulges in a local area due to thermal expansion and contraction, since the slot and the clip are independent and separate units, the deformation is limited to the vicinity of the connection point. It will not force the deformation stress to the far end of the same flooring or the connection point of adjacent flooring through a continuous rigid clip structure, thus ensuring overall stability.
[0027] Refer to the instruction manual appendix Figures 1 to 4 The built-in mechanism is used to ensure the flatness and thermal insulation performance of the stone plastic floor 1. The built-in mechanism includes an internal support component and a thermal insulation component. The internal support component is used to support the stone plastic floor 1 from the inside, and the thermal insulation component is used to keep the indoor temperature warm.
[0028] It should be noted that the built-in mechanism is integrated inside the SPC floor 1 and mainly undertakes two functions: structural support and thermal performance optimization. The internal support component is responsible for maintaining the geometric stability of the SPC floor 1, while the thermal insulation component is dedicated to reducing the transfer of indoor and outdoor heat through the floor, thereby improving user comfort and energy efficiency.
[0029] Refer to the instruction manual appendix Figure 4 The internal support assembly includes a lower internal cavity 211 opened inside the stone plastic floor 1 and a reinforcing steel plate 212 installed inside the lower internal cavity 211.
[0030] It should be noted that the core of the internal support component is the reinforcing steel plate 212 embedded in a specific cavity inside the stone plastic floor 1. This reinforcing steel plate 212 is usually a high-strength alloy steel sheet, laid along the length of the floor or the main stress direction, providing the main bending and compressive stiffness, but it cannot provide strong support for the edge part of the stone plastic floor 1.
[0031] Refer to the instruction manual appendix Figure 4 The insulation component includes an upper inner cavity 221 opened inside the stone plastic floor 1 and an insulation board 222 installed inside the upper inner cavity 221.
[0032] It should be noted that the core of the insulation component is the insulation board 222 embedded in another independent chamber. This insulation board 222 is usually made of low thermal conductivity materials such as XPS extruded polystyrene board, PU polyurethane board or cork, and its main function is to block heat conduction.
[0033] Refer to the instruction manual appendix Figures 1 to 6 The anti-deviation mechanism is used to limit the position of the stone plastic floor 1. The anti-deviation mechanism includes a fixing seat assembly and a locking assembly. The mating end of the fixing seat assembly is connected to the locking assembly. The fixing seat assembly is used to fix the stone plastic floor 1 to the ground, and the locking assembly is used to limit the position of the stone plastic floor 1.
[0034] It should be noted that the anti-deviation mechanism consists of two parts. The base plate 311 needs to be fixed on the cement leveling layer to provide basic anchoring. The anti-deviation groove 321 at the bottom of the stone plastic floor 1 is engaged with the anti-deviation strip 312. Together, they restrict the movement of the stone plastic floor 1 in the horizontal plane, especially when an object moves on the stone plastic floor 1, to prevent the stone plastic floor 1 from deflecting.
[0035] It is worth noting that the anti-offset mechanism focuses on solving the problem of horizontal displacement of the floor as a whole relative to the ground, ensuring the accuracy of the installation position of the stone plastic floor 1.
[0036] Refer to the instruction manual appendix Figure 3 The fixing bracket assembly includes a base plate 311 disposed at the lower end of the stone plastic floor 1 and a plurality of anti-offset clips 312 installed at the upper end of the base plate 311.
[0037] It should be noted that the base plate 311 is usually a thin strip of metal or high-strength plastic plate, laid flat and fixed to the ground. Multiple anti-offset clips 312 are vertically installed on its upper surface. These anti-offset clips 312 are slender protruding structures arranged in parallel.
[0038] Refer to the instruction manual appendix Figure 2 The locking assembly includes multiple anti-offset slots 321 formed at the lower end of the stone plastic floor 1, and the upper end of the anti-offset strip 312 is inserted into the interior of the anti-offset slots 321.
[0039] It should be noted that the locking component is characterized by multiple anti-offset slots 321 on the bottom surface of the stone plastic floor 1. The position, shape and size of these anti-offset slots 321 are precisely matched with the anti-offset strips 312 on the fixing base assembly. During installation, the anti-offset slots 321 on the bottom of the stone plastic floor 1 are aligned with the anti-offset strips 312, and then the stone plastic floor 1 is pressed down, so that the anti-offset strips 312 are inserted into the interior of the anti-offset slots 321, forming a tight longitudinal limit and a partial horizontal limit.
[0040] Refer to the instruction manual appendix Figures 1 to 3 The upper end of the stone plastic floor 1 is equipped with a textured plate 17, and the upper end of the base plate 311 is provided with multiple fixing holes 18.
[0041] It should be noted that the textured panel 17 is the uppermost decorative surface layer of the stone plastic flooring 1. It is usually composed of a transparent wear-resistant layer and a decorative layer with wood grain, stone grain, or other patterns, providing an aesthetic effect and surface wear resistance. The fixing holes 18 are opened on the base plate 311, penetrating its thickness, and are used to firmly fix the base plate 311 to the concrete leveling layer by means of expansion bolts, cement nails, or adhesives. They are the basic anchor points of the entire anti-displacement mechanism.
[0042] Working principle: First, the stone plastic flooring 1 is firmly installed on the ground as a foundation through the fixing holes 18 on the base plate 311. Then, the multiple anti-offset slots 321 on the bottom of the stone plastic flooring 1 are aligned with the anti-offset strips 312 on the base plate 311 and pressed down to engage. At this time, the anti-offset strips 312 are tightly embedded in the anti-offset slots 321, effectively restricting the horizontal displacement of the stone plastic flooring 1, which constitutes the core function of the anti-offset mechanism. When it is necessary to splice adjacent stone plastic flooring 1s, the lower locking blocks 14 and upper locking blocks 15 at the front end of the latter stone plastic flooring 1 are inserted into the lower locking blocks 11 and upper locking blocks 12 at the rear end of the former stone plastic flooring 1, respectively. During this process, the anti-slip arc pads 16 installed on the surface of the locking blocks form arc surface contact with the arc grooves 13 inside the slots and press them together, relying on friction to enhance the tightness of the engagement and the resistance to pull-out. This design achieves reliable vertical locking. The multi-point, independent, and staggered slot and block docking design completely replaces the traditional integrated long card strip. Its advantage is that when a floorboard bulges and deforms in a local area due to thermal expansion and contraction, the stress only acts on the independent docking point at that location and cannot be transmitted to the far end of the same floorboard or the connection point of adjacent floorboards through the continuous rigid structure. This effectively blocks the propagation of the cascading bulging effect and minimizes the range of deformation impact. At the same time, with the cooperation of the built-in mechanism, the reinforcing steel plate 212 in the lower inner cavity 211 provides rigid support for the floorboard body to resist bending and pressure, ensuring that the overall structure is flat and stable. The insulation board 222 in the upper inner cavity 221 plays a role in heat insulation and reduces heat loss. Finally, the textured board 17 on the floor surface provides decoration and wear resistance.
[0043] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A dual-slot installation structure for SPC flooring, characterized in that: The system includes a stone plastic floor (1), which has multiple lower slots (11) at its rear end and multiple upper slots (12) at its rear end. Both the lower slots (11) and the upper slots (12) have two symmetrically arranged arc-shaped grooves (13) inside. Both the lower slots (11) and the upper slots (12) have multiple lower blocks (14) and multiple upper blocks (15) installed at the front end of the stone plastic floor (1). The lower blocks (14) and the upper blocks (15) are installed in a staggered manner. Both the lower blocks (14) and the upper blocks (15) have two symmetrically arranged anti-slip arc pads (16) on their surfaces. The stone plastic floor (1) has an internal mechanism and an anti-deviation mechanism.
2. The SPC floor double-slot installation structure according to claim 1, characterized in that: The built-in mechanism is used to ensure the flatness and thermal insulation performance of the stone plastic floor (1). The built-in mechanism includes an internal support component and an insulation component. The internal support component is used to support the stone plastic floor (1) from the inside, and the insulation component is used to keep the indoor temperature warm.
3. The SPC floor double-slot installation structure according to claim 2, characterized in that: The internal support assembly includes a lower inner cavity (211) opened inside the stone plastic floor (1) and a reinforcing steel plate (212) installed inside the lower inner cavity (211).
4. The SPC floor double-slot installation structure according to claim 3, characterized in that: The insulation component includes an upper inner cavity (221) opened inside the stone plastic floor (1) and an insulation board (222) installed inside the upper inner cavity (221).
5. The SPC floor double-slot installation structure according to claim 1, characterized in that: The anti-offset mechanism is used to limit the position of the stone plastic floor (1). The anti-offset mechanism includes a fixing seat assembly and a locking assembly. The mating end of the fixing seat assembly is connected to the locking assembly. The fixing seat assembly is used to fix the stone plastic floor (1) to the ground. The locking assembly is used to limit the position of the stone plastic floor (1).
6. The SPC floor double-slot installation structure according to claim 5, characterized in that: The mounting bracket assembly includes a base plate (311) disposed at the lower end of the stone plastic floor (1) and a plurality of anti-offset clips (312) mounted on the upper end of the base plate (311).
7. The SPC floor double-slot installation structure according to claim 6, characterized in that: The locking assembly includes multiple anti-offset slots (321) formed at the lower end of the stone plastic floor (1), and the upper end of the anti-offset strip (312) is inserted into the interior of the anti-offset slots (321).
8. The SPC floor double-slot installation structure according to claim 7, characterized in that: The upper end of the stone plastic floor (1) is fitted with a textured plate (17), and the upper end of the base plate (311) is provided with multiple fixing holes (18).