A portable moisture resistant picnic mat

Abstract

The utility model discloses a portable damp -proof picnic mat belongs to picnic mat technical field, include: picnic ground pad, the upper portion of picnic ground pad is provided with the cotton pad, and the lower portion of picnic ground pad is bonded with the dampproof membrane, four connecting components are used for the convenient disassembly and installation of picnic ground pad and cotton pad, and the connecting component contains the iron sheet and the connecting plate, and the cotton pad bottom surface is in -line fixed connection with four connecting plates, and the bottom surface of connecting plate is bonded with the magnetic block and four interposing blocks respectively, and four interposing blocks are annular and arrange in the outer periphery of magnetic block, and the iron sheet sets up in the lower part of connecting plate, and the top surface of iron sheet is provided with the connecting recess that supplies magnetic block interposing, and the side of iron sheet close to connecting plate is provided with four interposing recesses that supply interposing block interposing, and the bottom surface of cotton pad is flush with the bottom surface of four connecting plates, and the utility model is beneficial to the design of connecting component, and whether adds the cotton pad use can be selected according to actual use demand, improves the use comfort degree of picnic mat, improves the use convenience of picnic mat.

Description

Technical Field

[0001] This utility model belongs to the field of picnic mat technology, and in particular a portable moisture-proof picnic mat. Background Technology

[0002] Picnic mats are made of fleece or acrylic fabric with a waterproof bottom layer. They are foldable and suitable for various scenarios such as outdoor picnics, fitness training, children's crawling mats, and beach activities. They can also be used as moisture-proof mats and tent bases. Existing picnic mats often use a single type of mat and cannot be thickened to meet the needs of colder weather, which affects the comfort and convenience of using the picnic mat.

[0003] A search of related technologies revealed a Chinese patent document (authorization announcement number CN223143201U) for a portable moisture-proof picnic mat, comprising a mat body, a fixing structure, a storage structure, and a moisture-proof structure; the fixing structure is located at the four corners of the mat body, the storage structure is located on one side of the mat body, and the moisture-proof structure is located at the bottom of the mat body. The advantages of this invention compared to existing technologies are: this invention not only prevents the picnic mat from being blown away by the wind by inserting stakes into the soil, thus avoiding the picnic mat being easily blown away or flipped over by wind, improving the user experience, but also absorbs moisture through the waterproof layer and by placing a desiccant packet in the storage slot and then securing the desiccant packet with Velcro and Velcro, giving the picnic mat excellent moisture-proof function. The aforementioned patent does not consider that picnic mats often use a single type of mat, making it impossible to thicken the mat for colder weather, affecting the comfort and convenience of use. Utility Model Content

[0004] The purpose of this invention is to provide a portable moisture-proof picnic mat to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable moisture-proof picnic mat, comprising: Picnic mat, with a cotton pad on top and a moisture-proof film glued to the bottom; Four connecting components are used for easy disassembly and installation of picnic mats and cotton mats. The connecting components include an iron plate and a connecting plate. The bottom of the cotton mat is embedded and fixedly connected to the four connecting plates. The bottom of the connecting plate is respectively glued with a magnetic block and four plug-in blocks. The four plug-in blocks are arranged in a ring around the outer periphery of the magnetic block. The iron plate is set at the lower part of the connecting plate. The top surface of the iron plate has a connecting groove for inserting the magnetic block. The side of the iron plate near the connecting plate has four plug-in grooves for inserting the plug-in blocks.

[0006] Preferably, the bottom surface of the cotton mat is flush with the bottom surface of the four connecting plates, and curved plates are provided at the four corners of the picnic mat.

[0007] Preferably, a fixing plate is bonded to the inner arc surface of the arc plate, and the top surface of the fixing plate is bonded to the iron plate.

[0008] Preferably, the top surface of the iron plate is flush with the top surface of the fixing plate, and a positioning component is provided at the bottom of the iron plate.

[0009] Preferably, the positioning assembly includes a positioning pin and a positioning plate with a recessed top, the inner wall of which is threadedly connected to the iron plate.

[0010] Preferably, the outer wall of the positioning plate is welded with several anti-slip blocks, and the top surface of the positioning nail is welded to the positioning plate.

[0011] Preferably, the top surfaces of the four positioning plates are in contact with the picnic mat, the top surfaces of the positioning plates are higher than the top surfaces of several anti-slip blocks, and the inner bottom wall of the positioning plates is bonded with an anti-slip pad for pressing firmly against the iron plate.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This portable moisture-proof picnic mat, thanks to its connecting component design, allows for easy connection between the picnic mat and the cotton pad. The addition of the cotton pad makes it suitable for use in colder environments, improving the picnic mat's usability. The magnetic blocks extend into the connecting grooves of the iron plate, and the magnetic attraction between the magnetic blocks and the iron plate achieves connection and fixation. Furthermore, four insert blocks extend into the four insert grooves of the iron plate, enhancing the connection stability between the connecting plate and the iron plate. This ensures a secure and stable fit between the picnic mat and the cotton pad. The magnetic connection also facilitates easy disassembly and installation, further enhancing the picnic mat's usability. This portable, moisture-proof picnic mat is designed to prevent it from easily flipping over in strong winds during outdoor use. Thanks to the positioning components, the mat is stably connected to the ground, improving its ease of use. The threaded connection between the positioning plate and the metal plate further secures the mat, enhancing its stability. The anti-slip blocks facilitate the removal and installation of the positioning plate and metal plate, allowing users to choose whether to install or remove the positioning components based on their needs, further improving the picnic mat's usability. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a schematic diagram showing the disassembled structure of the picnic mat and cotton mat of this utility model; Figure 4 This is a structural schematic diagram of the fixing plate of this utility model; Figure 5 This is a schematic diagram of the structure of the connecting component of this utility model; Figure 6 This is a schematic diagram showing the disassembled structure of the iron plate and connecting plate of this utility model; Figure 7 This is a schematic diagram of the connecting plate of this utility model from another perspective; Figure 8 This is a schematic diagram of the positioning component of this utility model.

[0015] Explanation of reference numerals in the attached figures: In the picture: 1. Picnic mat; 2. Cotton mat; 3. Fixing plate; 4. Curved plate; 5. Connecting component; 6. Iron plate; 7. Connecting plate; 8. Magnetic block; 9. Inserting block; 10. Positioning component; 11. Positioning plate; 12. Anti-slip block; 13. Positioning nail. Detailed Implementation

[0016] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0017] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0018] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0019] Please see Figures 1 to 8 A portable moisture-proof picnic mat, in this embodiment including: Picnic mat 1, with a cotton pad 2 on the upper part of picnic mat 1 and a moisture-proof film glued to the lower part of picnic mat 1; Four connecting components 5 are used for easy disassembly and installation of picnic mat 1 and cotton mat 2. The connecting components 5 include iron plate 6 and connecting plate 7. The bottom surface of cotton mat 2 is embedded and fixedly connected to the four connecting plates 7. The connecting plates 7 and cotton mat 2 are fixedly connected by embedding. Specifically, a square groove matching the size of the connecting plate 7 is pre-cut on the bottom surface of cotton mat 2 (the groove depth is the same as the thickness of the connecting plate 7, preferably 8-12mm). After the connecting plate 7 is embedded in the groove, it is fully glued and fixed around the perimeter and bottom surface with environmentally friendly hot melt adhesive (such as EVA hot melt adhesive, with a bonding strength ≥0.8MPa and a temperature resistance range of -20℃ to 80℃). This ensures that the connecting plate 7 is flush with the bottom surface of cotton mat 2 and avoids protrusions that affect the comfort of use.

[0020] A magnetic block 8 and four plug-in blocks 9 are respectively bonded to the bottom surface of the connecting plate 7. The four plug-in blocks 9 are arranged in a ring around the outer periphery of the magnetic block 8. The magnetic block 8 is bonded to the connecting plate 7 with high-strength epoxy resin adhesive (such as AB glue, with a shear strength ≥15MPa after curing). The magnetic block 8 is a neodymium iron boron strong magnet (magnetic force ≥8000 Gauss), and its center is set coaxially with the center of the connecting plate 7. The four plug-in blocks 9 (made of rigid PP material) are evenly distributed in a 90° ring around the magnetic block 8, with adjacent plugs... The spacing between blocks 9 is 15mm, and the bottom surface of the plug-in block 9 is flush with the bottom surface of the magnetic block 8 to ensure synchronous contact with the iron plate 6 during assembly. The iron plate 6 is located at the bottom of the connecting plate 7. The top surface of the iron plate 6 has a connecting groove for the magnetic block 8 to be plugged in. The side of the iron plate 6 near the connecting plate 7 has four plug-in grooves for the plug-in blocks 9 to be plugged in. Thanks to the design of the connecting component 5, the cotton pad 2 can be added according to the outdoor temperature requirements to improve the comfort of using the picnic mat and thus improve the convenience of using the picnic mat.

[0021] The bottom surface of the cotton mat 2 is flush with the bottom surfaces of the four connecting plates 7. Each of the four corners of the picnic mat 1 has an arc-shaped plate 4. A fixing plate 3 is glued to the inner arc surface of the arc-shaped plate 4. The top surface of the fixing plate 3 is glued to the iron plate 6. The iron plate 6 (made of Q235 cold-rolled steel plate with galvanized anti-rust treatment) is also glued to the fixing plate 3 using epoxy resin adhesive. The inner arc surface of the fixing plate 3 (made of ABS engineering plastic) is fixed to the arc-shaped plate 4 (made of soft PVC material) by hot-melt welding. Several through holes are opened on the top surface of the arc-shaped plate 4. The board 4 has several through holes and is sewn to the picnic mat 1 with needle and thread (nylon thread) to improve safety. The top surface of the iron plate 6 is flush with the top surface of the fixing plate 3. The lower part of the iron plate 6 is provided with a positioning component 10, which includes a positioning nail 13 and a positioning plate 11 with a recessed top. The inner wall of the positioning plate 11 is threaded to the iron plate 6. Several anti-slip blocks 12 are welded to the outer wall of the positioning plate 11. The top surface of the positioning nail 13 is welded to the positioning plate 11. The top surfaces of the four positioning plates 11 all abut against the picnic mat 1.

[0022] The top surface of the positioning plate 11 is higher than the top surface of several anti-slip blocks 12. An anti-slip pad for tightly abutting the iron plate 6 is adhered to the inner bottom wall of the positioning plate 11. The inner wall of the positioning plate 11 (made of ABS engineering plastic) has an M18×1.5 internal thread, which matches the M18×1.5 external thread machined on the lower outer surface of the iron plate 6. The thread engagement length is 15mm to ensure connection stability. The anti-slip pad (made of silicone, Shore hardness 50±5HA) adhered to the inner bottom wall of the positioning plate 11 has diamond-shaped anti-slip patterns (pattern depth 0.5mm) on its surface. When the positioning plate 11 and the iron plate 6 are threaded together... Afterwards, the anti-slip pad can generate a pre-tightening pressure of 0.3MPa to prevent the positioning plate 11 from loosening during use. The anti-slip block 12 (made of rubber with a semi-circular cross-section) is uniformly welded at 90° around the center of the positioning plate 11 (using ultrasonic welding with a welding strength ≥50N) on the outer wall of the positioning plate 11, with a total of 4 sets, so that users can easily adjust the height by rotating the positioning plate 11 with their fingers or tools. The top surface of the positioning nail 13 (made of No. 45 steel with chrome-plated anti-rust treatment) is fixed to the center of the bottom surface of the positioning plate 11 by arc welding. The weld is ground to ensure that there is no weld slag protrusion.

[0023] The moisture-proof membrane (made of PE composite film) bonded to the bottom of picnic mat 1 is connected to picnic mat 1 (the base material is Oxford cloth, weight 210D, surface PU coating for waterproof treatment) using hot air welding process. The welding width is 15mm, the welding temperature is 180±10℃, and the welding speed is 2m / min to ensure no leakage at the weld. The moisture-proof membrane covers an area 50mm beyond the edge of picnic mat 1. The excess part is folded up 30mm and then sewn to the edge of picnic mat 1 with needle and thread (waterproof nylon thread is used for sewing, stitch distance is 2mm) to form a double sealing structure, further preventing ground moisture from penetrating.

[0024] After prolonged use, dust and dirt may accumulate on the surface of magnetic block 8, or the bonding between magnetic block 8 and connecting plate 7 may become loose, causing the cotton pad 2 to be loosely connected to the picnic mat 1 and prone to displacement. After daily use, wipe the surface of magnetic block 8 and iron plate 6 with a dry cloth to remove impurities. Check the bonding condition between magnetic block 8 and connecting plate 7 every 3 months. If loosening occurs, inject a small amount of epoxy resin glue along the gap, let it stand for 24 hours to cure, and then it can be used again. Keep 1-2 sets of magnetic blocks 8 and connecting blocks 9 on hand. When the magnetic force of magnetic block 8 weakens (magnetic force is below 5000 Gauss), the original adhesive can be softened by heating (heating temperature 80℃, heating time 5 minutes), the old magnetic block 8 and connecting blocks 9 can be removed, and the new components can be replaced and re-bonded and fixed. When inserting the connector 9 into the insertion groove of the iron plate 6 (groove depth 10mm, cross-section matching the connector 9), assembly may be difficult or the connector may not fit tightly after assembly due to residual impurities in the groove or wear on the surface of the connector 9. Before assembly, clean the impurities in the insertion groove with a toothpick or fine brush. If the surface of the connector 9 is worn (wear amount exceeds 1mm), a small amount of silicone-based grease (such as petroleum jelly, amount ≤0.5g / piece) can be applied to the surface of the connector 9 to reduce frictional resistance and avoid grease contamination of the picnic mat 1. When the connector 9 is severely damaged (such as broken or deformed), a replacement part can be made by cutting PP material of the same specification and 3D printing, or contact the manufacturer to obtain a spare connector 9 for replacement.

[0025] When used on hard surfaces (such as concrete or flagstone), the positioning pin 13 is difficult to insert; when used on soft surfaces (such as sand or wet mud), the positioning pin 13 is prone to bending and deformation, failing to effectively secure the picnic mat. For hard surfaces, a 15mm diameter, 50mm long plastic expansion tube is provided. First, hammer the expansion tube into the ground (to a depth of 40mm), then insert the positioning pin 13 into the expansion tube, using the friction between the expansion tube and the ground to secure the picnic mat. For soft surfaces, use an extended positioning pin 13 with a length of 150mm (available separately, thread-compatible with the positioning plate 11), inserting it into the ground to a depth of ≥80mm. To improve stability, if the positioning pin 13 is slightly bent (bending angle ≤10°), it can be straightened using a bench vise (apply pressure ≤500N during straightening to avoid excessive force causing breakage); if the bending angle exceeds 10° or cracks appear, the positioning pin 13 needs to be replaced. When replacing, use a grinding wheel to remove the welding points of the old positioning pin 13 before welding the new positioning pin 13. After long-term use, the threads between the positioning plate 11 and the iron plate 6 may become rusted due to dust and moisture, causing the positioning plate 11 to jam or become unable to rotate. Regularly (every 2 months) apply 2-3 drops of lubricating oil (such as sewing machine oil, viscosity ≤10mm) to the threads. 2 Rotate the positioning plate 11 five to ten times to ensure that the lubricating oil is fully penetrated. If the threads are severely corroded, spray the rust remover (such as WD-40) on the threads first, let it stand for 10 minutes, then gently rotate the positioning plate 11 with a tool to remove the rust before applying the lubricating oil.

[0026] When using a picnic mat on surfaces with many sharp objects (such as pebbles or branches), the moisture-proof membrane is easily torn, allowing ground moisture to seep into the picnic mat and cause it to become damp during use. For everyday use, it is recommended to carry a piece of durable Oxford cloth (420D) larger than the picnic mat. Before use, lay the Oxford cloth on the ground first, then place the picnic mat on top to prevent the moisture-proof membrane from directly contacting sharp objects. If the moisture-proof membrane has small tears (tear area ≤ 10mm), 2 Waterproof tape (such as butyl waterproof tape, 20mm wide) can be used to cover the damaged area. Before applying the tape, clean the surface of the damaged area to remove dust and moisture, and ensure that the tape adheres tightly. If the damaged area is larger than 10mm... 2 If necessary, the entire moisture-proof membrane needs to be replaced. When replacing it, first remove the seams and welding points of the old moisture-proof membrane, and then glue the new moisture-proof membrane according to the original process and seal it.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.

[0028] Working principle This portable moisture-proof picnic mat, when the cotton pad 2 needs to be added during use, causes the magnetic block 8 and four plug-in blocks 9 on the bottom surface of the connecting plate 7 to extend into the connecting groove and the four plug-in groove respectively, and the magnetic block 8 and the iron plate 6 are magnetically attracted to each other, realizing the connection between the connecting plate 7 and the iron plate 6. During the transmission process, the picnic mat 1 and the cotton pad 2 are connected. Conversely, the connection between the magnetic block 8 and the iron plate 6 is released, and the picnic mat 1 and the cotton pad 2 are disassembled during the transmission process. The cotton pad 2 is easy to disassemble and install. When it is necessary to fix the picnic mat, the positioning plate 11 is threadedly connected to the iron plate 6, and several anti-slip blocks 12 are pushed to rotate around the positioning plate 11 as the axis, so that the positioning plate 11 rotates and the positioning plate 11 is connected and fixed to the iron plate 6. Then, the positioning nails 13 are installed and fixed, so that the four positioning nails 13 extend into the ground to fix the position of the picnic mat, making the use of the picnic mat more convenient.

[0029] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable moisture-proof picnic mat, characterized in that, include: Picnic mat (1), the upper part of the picnic mat (1) is provided with a cotton pad (2), and the lower part of the picnic mat (1) is glued with a moisture-proof film; Four connecting components (5) are used for the convenient disassembly and installation of the picnic mat (1) and the cotton mat (2). The connecting components (5) include an iron plate (6) and a connecting plate (7). The bottom surface of the cotton mat (2) is embedded and fixedly connected to the four connecting plates (7). The bottom surface of the connecting plate (7) is respectively glued with a magnetic block (8) and four plug-in blocks (9). The four plug-in blocks (9) are arranged in a ring around the outer periphery of the magnetic block (8). The iron plate (6) is located at the lower part of the connecting plate (7). The top surface of the iron plate (6) is provided with a connecting groove for the magnetic block (8) to be inserted. The side of the iron plate (6) near the connecting plate (7) is provided with four plug-in grooves for the plug-in blocks (9) to be inserted.

2. A portable moisture-proof picnic mat according to claim 1, characterized in that: The bottom surface of the cotton mat (2) is flush with the bottom surface of the four connecting plates (7), and the four corners of the picnic mat (1) are provided with arc-shaped plates (4).

3. A portable moisture-proof picnic mat according to claim 2, characterized in that: The inner arc surface of the arc plate (4) is bonded with a fixing plate (3), and the top surface of the fixing plate (3) is bonded to the iron plate (6).

4. A portable moisture-proof picnic mat according to claim 3, characterized in that: The top surface of the iron plate (6) is flush with the top surface of the fixing plate (3), and a positioning component (10) is provided at the bottom of the iron plate (6).

5. A portable moisture-proof picnic mat according to claim 4, characterized in that: The positioning component (10) includes a positioning pin (13) and a positioning plate (11) with a recessed top, the inner wall of which is threadedly connected to the iron plate (6).

6. A portable moisture-proof picnic mat according to claim 5, characterized in that: The outer wall of the positioning plate (11) is welded with several anti-slip blocks (12), and the top surface of the positioning nail (13) is welded to the positioning plate (11).

7. A portable moisture-proof picnic mat according to claim 6, characterized in that: The top surfaces of the four positioning plates (11) are in contact with the picnic mat (1). The top surfaces of the positioning plates (11) are higher than the top surfaces of the anti-slip blocks (12). The inner bottom wall of the positioning plates (11) is bonded with an anti-slip pad for pressing against the iron plate (6).

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