A tongue-and-groove strip for a wooden door leaf

Abstract

The utility model relates to a kind of rabbet strips for wooden door leaf, including rabbet strip main part, limiting piece and protective strip, the height of rabbet strip main part is adapted with door leaf, the rabbet strip main part includes first baffle and second baffle, the first baffle side and the second baffle side are connected;The limiting piece is placed on the first baffle or second baffle, the door leaf corresponding position is provided with the slot for containing the limiting piece;The protective strip is placed on the side of the first baffle away from the second baffle, and the protective strip is connected with the side of the first baffle;And / or, the protective strip is placed on the side of the second baffle away from the first baffle, and the protective strip is connected with the side of the second baffle.The utility model installs baffle on the surface of door leaf and wraps around edge strip, avoids the problem that edge strip is cracked due to long-term extrusion with door frame sealing strip.

Description

Technical Field

[0001] This utility model relates to the field of wooden door accessories technology, specifically to a tongue and groove strip for wooden door panels. Background Technology

[0002] As a common component in building decoration and furniture manufacturing, the edge protection and sealing performance of wooden doors directly affect their service life and aesthetics. Currently, most wooden door panels use edge banding, but problems such as cracking and glue overflow are prone to occur during the edge banding process, leading to reduced durability. Furthermore, long-term pressure between the edge banding strip and the door frame sealing strip can cause deformation and damage, not only affecting aesthetics but also potentially leading to after-sales repair issues and increasing costs for both businesses and users. Utility Model Content

[0003] In view of the above problems, this utility model provides a tongue and groove strip for wooden door panels to solve the problem of cracking of the edge banding strip caused by long-term compression between the edge banding strip of the door panel and the sealing strip of the door frame.

[0004] To achieve the above objectives, the applicant provides a tongue and groove strip for wooden door panels, comprising a tongue and groove strip body, a limiting member, and a protective strip. The height of the tongue and groove strip body is adapted to the door panel. The tongue and groove strip body includes a first baffle and a second baffle, with the side of the first baffle connected to the side of the second baffle. The limiting member is placed on the first baffle or the second baffle, and the door panel has a corresponding slot for accommodating the limiting member. The protective strip is placed on the side of the first baffle away from the second baffle, and the protective strip is connected to the side of the first baffle. And / or, the protective strip is placed on the side of the second baffle away from the first baffle, and the protective strip is connected to the side of the second baffle.

[0005] Preferably, the protective strip is perpendicular to the first baffle and / or the second baffle.

[0006] Preferably, the first baffle is perpendicular to the second baffle.

[0007] Preferably, the protective strip is the hook edge on the first baffle and / or the second baffle.

[0008] Preferably, the first baffle and / or the second baffle has a rough structure on the side of the door leaf opposite to the door leaf.

[0009] Preferably, the rough structure is a serrated pattern.

[0010] Preferably, the limiting member includes a limiting post and a guide arm, the limiting post and the guide arm are integrally formed, and the guide arm is elastic.

[0011] Preferably, the tongue and groove strip body is a metal tongue and groove strip body or a PVC tongue and groove strip body.

[0012] The advantages of the above technical solution, which differ from the existing technology, are as follows: This utility model installs the baffle on the surface of the door leaf and wraps around the edge banding strip, avoiding the problem of cracking caused by long-term compression between the edge banding strip and the door frame sealing strip; the limiting member is embedded in the groove of the door leaf, which restricts the movement of the tongue and groove strip during the opening and closing of the door leaf, ensuring that the baffle can always wrap around the edge banding strip; the hook edge on the baffle can protect the edge of the edge banding strip, preventing the edge banding strip from being damaged by collisions with other objects.

[0013] The above description of the utility model is merely an overview of the technical solution of this utility model. In order to enable those skilled in the art to better understand the technical solution of this utility model and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this utility model easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this utility model. Attached Figure Description

[0014] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0015] In the accompanying drawings of the instruction manual:

[0016] Figure 1 This is a schematic diagram of the tongue and groove strip described in this embodiment;

[0017] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0018] Figure 3 This is a schematic diagram of the tongue and groove strip installed on the wooden door leaf as described in this embodiment;

[0019] Figure 4 for Figure 3 Enlarged view of part B in the middle;

[0020] Figure 5 This is a schematic diagram of a wooden door leaf without the tongue and groove strips described in this embodiment installed;

[0021] Figure 6 for Figure 5 Enlarged view of part C in the middle.

[0022] The reference numerals used in the above figures are explained as follows:

[0023] 1. Tongue and groove strip body; 11. Limiting post; 111. Guide arm; 12. First baffle; 13. Second baffle; 121. Rough structure; 1211. Serrated texture; 122. Outlining; 2. Door frame; 21. Sealing strip; 3. Door leaf; 31. Groove; 32. Edge sealing strip. Detailed Implementation

[0024] To illustrate in detail the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this utility model, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this utility model and are therefore intended to limit the scope of protection of this utility model.

[0025] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0026] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0027] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0028] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0029] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0030] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0031] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0032] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0033] Please see Figures 1 to 6This embodiment provides a tongue and groove strip for a wooden door leaf, including a tongue and groove strip body 1, a limiting member, and a protective strip. The height of the tongue and groove strip body 1 is adapted to the door leaf 3. The tongue and groove strip body 1 includes a first baffle 12 and a second baffle 13, with the side of the first baffle 12 connected to the side of the second baffle 13. The limiting member is placed on the first baffle 12 or the second baffle 13, and the door leaf 3 has a corresponding slot 31 for accommodating the limiting member. The protective strip is placed on the side of the first baffle 12 away from the second baffle 13, and the protective strip is connected to the side of the first baffle 12. And / or, the protective strip is placed on the side of the second baffle 13 away from the first baffle 12, and the protective strip is connected to the side of the second baffle 13.

[0034] The tongue and groove strip body 1 is the basic structural frame of the tongue and groove strip and is the core component that directly cooperates with the wooden door leaf 3 for installation. The first baffle 12 and the second baffle 13 are both plate-like structures on the tongue and groove strip body 1. The two baffles are connected to each other and can shield and protect the wooden door leaf 3. In this embodiment, the limiting member is vertically set on one of the baffles. The limiting member cooperates with the groove 31 on the wooden door leaf 3 and is used to constrain the tongue and groove strip installed on the door leaf 3 during the opening and closing of the wooden door leaf 3, preventing the tongue and groove strip from moving under the action of friction and ensuring that the tongue and groove strip is firmly connected to the wooden door leaf 3. The protective strip is a specific structure set on the first baffle 12 and / or the second baffle 13. It is used to prevent the edge banding strip 32 on the wooden door leaf 3 from being damaged or torn due to external force. At the same time, the protective strip can shield and protect the corners of the wooden door leaf 3, preventing the corners of the wooden door leaf 3 from being damaged and affecting the overall appearance of the door leaf 3.

[0035] Specifically, the limiting component serves as a connection base, inserted into the pre-set groove 31 of the wooden door leaf 3, and cooperates with the groove 31 to constrain the movement of the wooden strip during the opening and closing of the wooden door leaf 3. Two interconnected baffles correspond to different surfaces of the door leaf 3, providing shielding and protection from different directions. The baffles can be installed on the surface of the door leaf 3 by adhesive or screws, and wrap around the edge banding strip 32 on the door leaf 3. During the opening and closing of the wooden door leaf 3, the baffles directly contact the sealing strip 21 on the door frame 2, thus protecting the edge banding strip 32. The protective strip on the baffle directly acts on the corners of the door leaf 3, preventing damage from direct collision and friction with other objects during use through wrapping and cushioning, thereby preventing tearing or breakage of the edge banding strip 32.

[0036] Compared with the prior art, this embodiment sets up a tongue and groove strip body 1. By installing the first baffle 12 and the second baffle 13 on the surface of the door leaf 3 and wrapping the edge banding strip 32, the problem of cracking caused by long-term compression of the edge banding strip 32 with the sealing strip 21 on the door frame 2 is avoided. The limiting member is embedded in the groove 31 of the door leaf 3 to restrain the movement of the tongue and groove strip during the opening and closing of the door leaf 3, ensuring that the baffle can always wrap the edge banding strip 32. The protective structure protects the edge part of the edge banding strip 32, preventing the edge banding strip 32 from being damaged by collision with other objects.

[0037] In this embodiment, the limiting member is integrally formed with the first baffle 12 and the second baffle 13, which saves production costs.

[0038] In some embodiments, the limiting member and the two baffles are spliced ​​together. When making tongue and groove strips, the limiting member and the two baffles need to be processed separately, and then the limiting member and the baffles are connected by buckles or screws. This is not only time-consuming and labor-intensive, but also increases production costs.

[0039] Therefore, molding the limiting component and the two baffles into one piece is the preferred solution.

[0040] In this embodiment, the protective strip is perpendicular to the first baffle 12 and / or the second baffle 13. The corners of the wooden door leaf 3 are mostly right-angled structures. The perpendicularity of the protective strip to the baffle allows for a precise match between the protective strip and the right-angled contours of the door leaf 3's corners, achieving a "point-to-point" fit. This not only eliminates blind spots in protection but also limits minor deformations of the door leaf 3's corners through close contact, reducing gaps between the tongue and groove strip and the door leaf 3 caused by wood expansion and contraction, thereby preventing dust and moisture intrusion.

[0041] Please see Figure 1 and Figure 2 In this embodiment, the first baffle 12 is perpendicular to the second baffle 13.

[0042] The included angle between the two baffles is 90 degrees, forming an L-shaped structure, so that the two baffles correspond to the two mutually perpendicular surfaces of the wooden door leaf 3.

[0043] Specifically, since the contact point between the door leaf 3 and the door frame 2 is at a right angle, the two perpendicular baffles can perfectly fit the right angle structure of the door leaf 3. When the tongue and groove strip is installed on the door leaf 3, the baffles can adhere to the surface of the door leaf 3 where it contacts the door frame 2, protecting the edge banding strip 32 on the door leaf 3. The two baffles are L-shaped, ensuring full coverage and protection of the door leaf 3, avoiding blind spots caused by the baffles not fitting properly to the surface of the door leaf 3, which could damage the edge banding strip 32. At the same time, the perpendicular arrangement of the two baffles reduces the production difficulty of the tongue and groove strip, thereby reducing production costs.

[0044] The vertical arrangement of the two baffles makes the baffles fit more tightly with the surface of the door leaf 3, reducing the gap between them and improving the stability of the tongue and groove strip.

[0045] Please see Figure 1 , Figure 2 and Figure 4 In this embodiment, the protective strip is the hook edge 122 on the first baffle 12 and / or the second baffle 13.

[0046] The edging 122 refers to the structure that extends inward from the edge of the baffle, which can wrap the corners of the wooden door leaf 3.

[0047] Specifically, the hook edge 122 is set on the edge of the baffle, has a plate-like structure, and is integrally formed with the baffle. The hook edge 122 is perpendicular to the first baffle 12 and / or the second baffle 13. When the tongue and groove strip is installed on the wooden door leaf 3, the hook edge 122 can fit and wrap around the corners of the door leaf 3.

[0048] When the corners of the door leaf 3 are subjected to collision or friction, the edge banding 122 will first bear the external force and resist the action of the external force through its own structural strength, so as to prevent the external force from acting directly on the corners of the door leaf 3, thereby ensuring that the edge banding strip 32 at the corners will not be damaged.

[0049] The edge banding 122 has a simple structure and is highly practical. It can tightly wrap around the three corners of the door leaf, protecting the edge banding strip 32 while effectively preventing paint peeling and damage to the three corners of the door leaf due to collisions and friction.

[0050] Compared to other complex protective structures, the Hook Edge 122 structure is easier to process and manufacture, has a lower cost, and requires no additional adjustments during installation, making it convenient to use.

[0051] In some embodiments, the protective strip is a rubber sheet, which is glued to the baffle and the wooden door leaf 3.

[0052] Please see Figure 2 and Figure 4 In this embodiment, the first baffle 12 and / or the second baffle 13 have a rough structure 122 on the side of the door leaf opposite to the door leaf.

[0053] Rough structure 121 refers to a structure with uneven features, such as textures and particles, set on the surface of the baffle that contacts the wooden door leaf 3.

[0054] The rough structure 121 can be disposed on the first baffle 12 and the second baffle 13 respectively, or it can be disposed on one of the baffles.

[0055] In this embodiment, the rough structure 121 is disposed on the first baffle 12.

[0056] The rough structure 121 increases the roughness of the baffle surface. When the baffle is fixed to the wooden door leaf 3 with adhesive, the rough structure 121 increases the contact area between the baffle and the adhesive, making the connection between the baffle and the wooden door leaf 3 more stable.

[0057] When the tongue and groove strip is installed on the wooden door leaf 3, the rough structure 121 on the baffle is in direct contact with the surface of the door leaf 3. Due to the large surface area and friction of the rough structure 121, when adhesive is applied between the rough structure 121 and the surface of the door leaf 3, the adhesive can better penetrate the uneven parts of the rough structure 121, forming a stronger bond. At the same time, the rough structure 121 increases the friction between the baffle and the door leaf 3, preventing the tongue and groove strip from sliding or shifting relative to the door leaf 3 during and after installation. This ensures the stability of the tongue and groove strip, allowing it to be more firmly fixed to the door leaf 3, preventing loosening or detachment.

[0058] Please see Figure 2 and Figure 4 In this embodiment, the rough structure 121 is a serrated pattern 1211.

[0059] The serrated pattern 1211 is shaped like a saw tooth, consisting of a series of continuous, alternating protrusions and depressions, presenting a regular tooth-like pattern.

[0060] Specifically, the serrated pattern 1211 forms multiple staggered tooth-like structures on the surface where the baffle and door leaf 3 contact. When the adhesive is applied, it fills the recessed parts of the serrated pattern 1211, while the raised parts contact the surface of the door leaf 3. This not only increases the contact area between the adhesive and the baffle, but also causes the adhesive to form a structure similar to "mechanical interlocking" after curing, greatly enhancing the adhesion.

[0061] Meanwhile, the raised portion of the serrated pattern 1211 can increase the friction between the baffle and the door leaf 3, further preventing the tongue and groove strip from sliding during use.

[0062] In addition, the regular shape of the serrated pattern 1211 is easy to process and manufacture, which can ensure the consistency and stability of the rough structure 121.

[0063] In some embodiments, the rough structure 121 is a raised particle disposed on the surface of the baffle.

[0064] In some embodiments, the rough structure 121 is a pit on the baffle.

[0065] Please see Figure 2 and Figure 4In this embodiment, the limiting member includes a limiting post 11 and a guide arm 111. The limiting post 11 and the guide arm 111 are integrally formed, and the guide arm 111 is elastic.

[0066] The limiting post 11 is a columnar structure, and the guide arm 111 is an outward extension of the limiting post 11, integrally formed with it. During the installation of the tongue and groove strip, the guide arm 111 guides the limiting post 11 into the groove 31 of the wooden door leaf 3. Simultaneously, due to the elasticity of the guide arm 111, when the limiting post 11 enters the groove 31, the inner wall of the groove 31 will compress the guide arm 111, causing it to deform and contract inward.

[0067] At this time, the guide arm 111 applies pressure to the inner wall of the groove 31 of the wooden door leaf 3 under the action of elastic force, and tightly abuts against the inner wall of the groove 31 to form a tight fit, firmly fixing the limiting post 11 in the groove 31 to prevent the tongue and groove strip from falling off.

[0068] The elastic guide arm 111 fits tightly against the inner wall of the groove 31 of the wooden door leaf 3, forming a reliable fixation, preventing the tongue and groove strip from loosening, shaking or falling off during use, and improving the stability and reliability of the tongue and groove strip.

[0069] In this embodiment, the tongue and groove strip body 1 is a metal tongue and groove strip body or a PVC tongue and groove strip body.

[0070] The limiting parts and baffles on the tongue and groove strip body 1 are integrally molded using aluminum alloy or stainless steel materials, and have high strength and hardness.

[0071] Specifically, when the tongue and groove strip body 1 is made of metal, the high strength, high hardness and good rigidity of the metal material itself can provide solid structural support for the tongue and groove strip, making it less likely to deform or be damaged when subjected to external impact, thus maintaining its protective function for the wooden door leaf 3 for a long time.

[0072] When the main body 1 of the tongue and groove strip is made of PVC, the good flexibility of PVC allows the strip to be molded during installation, facilitating a close fit between the strip and the wooden door leaf 3. It also cushions some of the impact force through its deformation when subjected to external forces, providing protection. Furthermore, PVC has good corrosion resistance and relatively low processing costs, allowing it to be manufactured into various complex structural shapes through injection molding and other processes to adapt to different types of wooden door leaves 3.

[0073] In this embodiment, the tongue and groove strip body 1 is made of aluminum alloy material, which can protect the edge sealing strip 32 of the door leaf 3 while also improving the strength of the wooden door leaf 3.

[0074] In some embodiments, the tongue and groove strip body 1 is made of PVC material to be suitable for humid and corrosive environments. At the same time, PVC material has a low production cost, which can reduce the overall price of the product and improve its cost performance.

[0075] Compared with the prior art, this utility model installs a baffle on the surface of the door leaf 3 and wraps around the edge banding strip 32, avoiding the problem of cracking caused by long-term compression of the edge banding strip 32 with the sealing strip 21 of the door frame 2; the limiting member is embedded in the groove 31 of the door leaf 3, which restricts the movement of the tongue and groove strip during the opening and closing of the door leaf 3, ensuring that the baffle can always wrap around the edge banding strip 32; the hook edge 122 on the baffle can protect the edge of the edge banding strip 32, preventing the edge banding strip 32 from being damaged by collision with other objects.

[0076] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this utility model, this should not limit the scope of patent protection of this utility model. Any technical solutions resulting from equivalent structural or procedural substitutions or modifications made based on the essential concept of this utility model and utilizing the content described in the text and drawings of this utility model, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this utility model.

Claims

1. A tongue and groove strip for wooden door panels, characterized in that, include: The tongue and groove strip body has a height adapted to the door leaf. The tongue and groove strip body includes a first baffle and a second baffle, with the side of the first baffle connected to the side of the second baffle. A limiting member is provided, which is placed on the first baffle or the second baffle, and the door leaf is provided with a slot for accommodating the limiting member at a corresponding position; A protective strip, wherein the protective strip is placed on the side of the first baffle away from the second baffle, and the protective strip is connected to the side of the first baffle; and / or, the protective strip is placed on the side of the second baffle away from the first baffle, and the protective strip is connected to the side of the second baffle.

2. The tongue and groove strip for wooden door panels according to claim 1, characterized in that, The protective strip is perpendicular to the first baffle and / or the second baffle.

3. The tongue and groove strip for a wooden door leaf according to claim 1, characterized in that, The first baffle is perpendicular to the second baffle.

4. The tongue and groove strip for a wooden door leaf according to claim 1, characterized in that, The protective strip is the hook edge on the first baffle and / or the second baffle.

5. A tongue and groove strip for a wooden door leaf according to claim 1, characterized in that, The first baffle and / or the second baffle has a rough structure on the side of the door leaf opposite to the door leaf.

6. A tongue and groove strip for a wooden door leaf according to claim 5, characterized in that, The rough structure is a serrated pattern.

7. The tongue and groove strip for a wooden door leaf according to claim 1, characterized in that, The limiting component includes a limiting post and a guide arm, the limiting post and the guide arm being integrally formed, and the guide arm being elastic.

8. A tongue and groove strip for a wooden door leaf according to claim 1, characterized in that, The tongue and groove strip body is a metal tongue and groove strip body or a PVC tongue and groove strip body.

Images