Splicing EVA foam
By designing T-slots and magnetic connection structures and support rings on EVA foam, the sliding and stability issues of EVA foam during splicing are solved, achieving stable vertical and horizontal splicing and meeting diverse installation needs.
Patent Information
- Application Number
- CN202520392896.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing EVA foam is prone to slipping and cannot be effectively connected when modularly spliced, especially when stacked, it has poor stability.
The design incorporates T-slots and T-blocks on the foam body, achieving vertical splicing through magnetic connection and support ring structure. Combined with spring clips and support slots, it enhances connection stability, and U-shaped slots on the four sides support horizontal splicing.
It enables stable vertical and horizontal splicing of foam, improves the tightness and stability of the connection, and meets the flexibility of different splicing needs.
Smart Images

Figure CN223781944U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EVA foam technology, and in particular to a splicable EVA foam. Background Technology
[0002] EVA foam, or ethylene-vinyl acetate copolymer foam, is a widely used material with properties such as softness, wear resistance, anti-slip, cushioning, and water resistance. In the current technology, EVA foam needs to be modularly spliced to meet different usage scenarios in practical applications. However, traditional EVA foam only has a U-shaped groove at the edge for horizontal splicing, which makes it easy to slide and unable to be effectively connected when stacked. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a splicable EVA foam.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A splicable EVA foam includes a foam body, the upper surface of which is provided with a pair of T-shaped grooves and the lower surface is provided with a corresponding protruding T-shaped block. Adjacent foam bodies are spliced by fitting and engaging the T-shaped grooves and T-shaped blocks.
[0006] The bottom wall of the T-shaped block is provided with multiple magnetic absorbing pieces, and the magnetic absorbing pieces and the magnetic plate provided on the inner wall of the T-shaped groove form a magnetic attraction connection mechanism.
[0007] The upper part of the T-shaped block one is provided with a T-shaped groove two, which connects with the T-shaped block two provided on the bottom wall of the foam body. The upper side of the T-shaped block one is provided with a spring clip, and the lower side of the T-shaped block one is provided with a support groove.
[0008] Furthermore, in a preferred configuration, the upper opening of the T-slot is chamfered.
[0009] Furthermore, in a preferred configuration, a magnetic plate is provided on the inner bottom wall of the T-slot.
[0010] In addition, a preferred structure is that the bottom wall of the foam body is provided with a groove, and a T-shaped block is provided in the middle of the groove.
[0011] Furthermore, in a preferred configuration, the spring clip retracts inward to achieve inward clamping of the T-slot.
[0012] In addition, a preferred structure is that the inner wall of the support groove is provided with an installation groove, and a support ring is embedded in the installation groove.
[0013] Furthermore, in a preferred configuration, when the T-block 1 aligns with the T-groove 1, the support groove and support ring are compressed and deformed by the T-groove 1.
[0014] In addition, a preferred structure is that the four outer sides of the foam body are provided with U-shaped slots to facilitate horizontal splicing.
[0015] The beneficial effects of this utility model are as follows:
[0016] In this invention, the upper and lower surfaces of the foam body are respectively provided with a T-shaped groove and a T-shaped block that can be connected. During the connection process, the magnetic structure and the support ring achieve the function of support and locking, realizing the vertical splicing function, effectively improving the stability after connection. Furthermore, the T-shaped block can be freely disassembled to meet different splicing and installation requirements, improving splicing efficiency and increasing splicing stability. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the installation structure of a T-shaped block for splicable EVA foam proposed in this utility model.
[0018] Figure 2 This is a schematic diagram of the external structure of a splicable EVA foam according to the present invention.
[0019] Figure 3 This is a schematic diagram of the T-slot structure proposed in this utility model;
[0020] Figure 4 This is a cross-sectional view of the T-block connection structure proposed in this utility model;
[0021] Figure 5 This is a schematic diagram of the internal structure of the T-shaped block proposed in this utility model.
[0022] In the diagram: 1. Foam body, 2. T-slot one, 3. T-block one, 4. Magnetic sheet, 5. Magnetic plate, 6. Chamfer, 7. T-block two, 8. Support groove, 81. Mounting groove, 9. T-slot two, 10. Spring clip, 11. Support ring, 12. U-shaped slot. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-5 A splicable EVA foam includes a foam body 1. The upper surface of the foam body 1 is provided with a pair of T-shaped grooves 2, and the lower surface is provided with a corresponding protruding T-shaped block 3. Adjacent foam bodies 1 are spliced by fitting and engaging the T-shaped grooves 2 and the T-shaped block 3.
[0025] The bottom wall of the T-shaped block 3 is provided with multiple magnetic plates 4. The magnetic plates 4 and the magnetic plates 5 provided on the inner wall of the T-shaped groove 2 form a magnetic connection mechanism. After the adjacent foam bodies 1 are connected, the connection stability is increased by the magnetic structure.
[0026] The upper part of T-shaped block 3 is provided with T-shaped groove 2 9, which is connected to T-shaped block 2 7 provided on the bottom wall of foam body 1. A spring clip 10 is provided inside the upper side of T-shaped block 3, and a support groove 8 is provided inside the lower side of T-shaped block 3.
[0027] The upper opening of the T-slot 2 is provided with a chamfer 6. The chamfer 6 is provided to allow the T-block 3 to be directly inserted and snapped in from top to bottom. The chamfer 6 serves as a guide.
[0028] A magnetic plate 5 is installed on the inner bottom wall of T-slot 2.
[0029] The bottom wall of the foam body 1 has a groove, and a T-shaped block 7 is set in the middle of the groove.
[0030] The spring clip 10 retracts inward, causing the T-slot 2 9 to close and clamp inward, increasing the tightness of the connection between T-block 1 3 and T-block 2 7.
[0031] The inner wall of the support groove 8 is provided with an installation groove 81, and a support ring 11 is embedded in the installation groove 81. When the support ring 11 is squeezed, it generates a reverse force to press against the T-groove 2.
[0032] When T-block 3 aligns with T-slot 2, support groove 8 and support ring 11 are compressed and deformed by T-slot 2.
[0033] The four outer sides of the foam body 1 are provided with U-shaped slots 12 to meet the requirements of horizontal splicing and realize the basic docking function.
[0034] In this embodiment, the T-slots 2 and T-blocks 3 of adjacent foam bodies 1 are inserted and connected. When the T-block 3 is installed into the T-slot 2, the support ring 11 and support groove 8 provided inside the T-block 3 are deformed by the pressure of the groove and generate a reverse force to press against the inner wall of the T-slot 2, thereby increasing the tightness of the connection.
[0035] Meanwhile, the bottom wall of the T-shaped block 3 is provided with multiple magnetic plates 4, which are magnetically connected to the magnetic plate 5 in the T-shaped groove 2, increasing the tightness of the connection.
[0036] In addition, the upper wall of the T-slot 5 is provided with a chamfer 6, and the adjacent foam body 1 can directly insert the T-block 3 vertically into the T-slot 2 to complete the docking. The chamfer 6 plays a guiding role.
[0037] Among them, T-block 3 is connected to T-block 7 through T-slot 9. By expanding T-slot 9 outward, the internal spring clip 10 and the groove body are deformed and opened, thus assembling and clamping into T-block 7. The spring clip 10 is reset to drive the groove body to shrink inward and clamp T-block 7.
[0038] It is worth noting that the foam body 1, namely EVA foam, has a certain degree of elasticity and can recover its original shape after being compressed or deformed by external force, so as to meet the needs of clamping and disassembly operations.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A splicable EVA foam, comprising a foam body (1), characterized in that, The upper surface of the foam body (1) is provided with a pair of T-shaped grooves (2), and the lower surface is provided with a corresponding protruding T-shaped block (3). Adjacent foam bodies (1) are spliced together by fitting and snapping together with the T-shaped grooves (2) and the T-shaped block (3). The bottom wall of the T-shaped block (3) is provided with multiple magnetic absorbing pieces (4), and the magnetic absorbing pieces (4) and the magnetic plate (5) provided on the inner wall of the T-shaped groove (2) are magnetically connected to each other. The upper part of the T-shaped block 1 (3) is provided with a T-shaped groove 2 (9), which is connected to the T-shaped block 2 (7) provided on the bottom wall of the foam body (1). A spring clip (10) is provided inside the upper side of the T-shaped block 1 (3), and a support groove (8) is provided inside the lower side of the T-shaped block 1 (3).
2. The splicable EVA foam according to claim 1, characterized in that, The upper opening of the T-slot (2) is provided with a chamfer (6).
3. The splicable EVA foam according to claim 1, characterized in that, The bottom wall of the T-slot 1 (2) is provided with a magnetic plate (5).
4. The splicable EVA foam according to claim 1, characterized in that, The bottom wall of the foam body (1) is provided with a groove, and a T-shaped block (7) is provided in the middle of the groove.
5. The splicable EVA foam according to claim 1, characterized in that, The spring clip (10) retracts inward, so that the T-slot (9) is closed and clamped inward.
6. The splicable EVA foam according to claim 1, characterized in that, The inner wall of the support groove (8) is provided with an installation groove (81), and a support ring (11) is embedded in the installation groove (81).
7. The splicable EVA foam according to claim 1, characterized in that, When the T-block (3) aligns with the T-groove (2), the support groove (8) and support ring (11) are compressed and deformed by the T-groove (2).
8. The splicable EVA foam according to claim 1, characterized in that, The foam body (1) has a square-shaped slot on each of its four outer sides to facilitate horizontal splicing.