Support structure for an interior door and an interior door

Abstract

The utility model relate to indoor door technical field, concretely relate to support structure and indoor door for indoor door. Including the frame, the frame is installed with multiple vertical props and multiple cross braces, the upper and lower ends of vertical prop are overlapped with the upper and lower ends of frame respectively, the left and right ends of cross brace are inserted with the left and right ends of frame respectively, the cross brace is clamped in the card slot on the vertical prop, the front end surface of cross brace, vertical prop and frame is flush, the back end surface of cross brace, vertical prop and frame is flush, multiple vertical props divide the frame inner part into multiple cavities, the cavity in the rear side of cross brace is provided with the baffle all, the left and right ends of baffle are in contact with the left and right cavity wall of cavity, baffle is fixedly connected with cross brace, the back end of baffle is flush with the back end of frame. The utility model is through the design of the overlap of the block and the recess of vertical prop, the insertion of the insertion block and the insertion slot of cross brace and the card slot clamping of cross brace and vertical prop, realizes the quick positioning and pre -fixing of each component.

Description

Technical Field

[0001] This utility model relates to the field of interior door technology, specifically to a support structure for interior doors and an interior door itself. Background Technology

[0002] Interior doors, as an important component of architectural decoration, serve multiple functions in daily life, including sound insulation, heat insulation, aesthetics, and security. Traditional interior door support structures typically employ simple frame designs, including borders, vertical braces, and horizontal braces. However, these structures often face a series of challenges during assembly and use. For example, existing support structures primarily rely on direct fixing with screws or glue, resulting in a cumbersome and time-consuming assembly process. Insufficient alignment precision at the joints can easily lead to uneven door surfaces, affecting overall aesthetics and sealing performance. Furthermore, the lack of optimized internal cavity design results in weak structural support when filled with expanding foam or other materials, potentially causing deformation or cracking, thus reducing the door's durability and sound insulation. In addition, existing designs rely heavily on external tools or auxiliary components for fixing components, increasing manufacturing costs and process complexity, especially making it difficult to guarantee consistency and stability in large-scale production. These problems not only limit the improvement of interior door performance but also affect overall production efficiency.

[0003] Patent document CN223434262U discloses a support structure for an interior door and an interior door itself. The supporting structure of this interior door has a transverse reinforcing rib and a longitudinal reinforcing rib, and the internal cavity of the interior door is filled with honeycomb coated paper. Existing interior doors require high structural strength, necessitating sufficient solid wood filling and support within the door body; therefore, this technical solution is not suitable for the production of existing solid wood interior doors. Furthermore, this technical solution requires the installation of high-density reinforcing boards and molded density boards during the production process, resulting in a complex installation structure. Utility Model Content

[0004] The main objective of this invention is to provide a support structure and interior door for interior doors that are easy to assemble and can improve production efficiency.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: The support structure for interior doors includes a frame with multiple vertical and horizontal braces installed inside. The top and bottom ends of the vertical braces overlap with the top and bottom ends of the frame, and the left and right ends of the horizontal braces insert into the left and right ends of the frame. The horizontal braces are engaged in slots on the vertical braces. The front and rear faces of the horizontal and vertical braces and the frame are flush. The multiple vertical braces divide the interior of the frame into multiple cavities. Each cavity behind the horizontal brace has a stop block. The left and right ends of the stop block contact the left and right walls of the cavity. The stop block is fixedly connected to the horizontal brace, and the rear end of the stop block is flush with the rear end of the frame.

[0006] Specifically, the slot is located at the front end of the vertical support.

[0007] Specifically, multiple adhesive grooves are provided on the front and rear end faces of the frame, horizontal brace, and vertical brace.

[0008] Specifically, the stop and the cross brace are fixedly connected by multiple steel nails.

[0009] Specifically, the frame includes two vertical frames arranged symmetrically from left to right and two horizontal frames arranged symmetrically from top to bottom, with the opposite ends of the vertical and horizontal frames fixedly connected.

[0010] Specifically, slots are provided at the opposite ends of the two symmetrically arranged vertical frames, and the slots correspond to the horizontal supports. Longitudinal grooves are provided on the front sides of both ends of the horizontal supports, and the horizontal support portion behind the longitudinal grooves forms an insert block, which is inserted into the slot of one side of the vertical frame.

[0011] Specifically, the two symmetrically arranged horizontal frames have grooves at their opposite ends, and the vertical supports have horizontal slots at their rear sides. The vertical support portion in front of the horizontal slots forms a lap block, which overlaps in the groove.

[0012] Interior door, including a support structure for the interior door, wherein door panels are heat-pressed and bonded to both ends of the support structure for the interior door.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Through the overlapping and grooved design of the vertical supports, the insertion of the horizontal supports into the slots, and the snap-fit ​​design between the horizontal and vertical supports, rapid positioning and pre-fixation of each component are achieved. The vertical supports are embedded into the grooves of the horizontal frame through the overlapping blocks, ensuring precise vertical alignment; the horizontal supports are inserted into the slots of the vertical frame through the insertion blocks, achieving precise horizontal positioning; the horizontal supports snap into the slots at the front of the vertical supports, ensuring the plane alignment of the support frame. Therefore, manual adjustment is reduced, assembly efficiency is significantly improved, and misalignment problems caused by traditional screw connections are avoided.

[0014] 2. When assembling the support structure for interior doors, first fix one side of the vertical frame, then install the vertical brace, place the horizontal brace, and finally fix the other side of the vertical frame. Use the semi-open state of the frame to complete the positioning of the internal support components. When the frame is closed, lock the inserts at both ends of the horizontal brace simultaneously. This simplifies the operation steps and is especially convenient for the batch assembly of multiple horizontal or vertical braces, reducing the complexity of the process.

[0015] 3. The front and rear ends of the frame, horizontal braces, and vertical braces are all flush, and glue grooves are opened on the surface to provide a continuous and flat base for door panel bonding and avoid stress concentration; the glue grooves increase the bonding area and ensure a firm bond between the door panel and the frame; thus enhancing the overall integrity of the door and preventing the door panel from deforming or coming apart during hot pressing.

[0016] 4. A stop block is installed on the rear side of the cross brace. It is rigidly connected to the cross brace by steel nails. The two ends of the stop block are close to the side wall of the cavity, and the rear end is flush with the frame. Therefore, an internal I-beam structure is formed, which significantly improves the bending stiffness. The stop block supports the cavity boundary and suppresses the expansion deformation when the foam is filled.

[0017] 5. Standardized interfaces such as slots, grooves, and card slots, and the ability to prefabricate accessories such as blocks in batches, reduce mold development costs, are suitable for mass production, and improve the interchangeability of parts.

[0018] 6. The main body completes mechanical positioning through plug-in and snap-fit, requiring only additional bonding at key nodes, reducing reliance on traditional processes such as screws; lowering tool requirements and manual skill thresholds, reducing assembly time and labor costs, and improving production line compatibility.

[0019] 7. The closed cavity formed by the vertical bracing is combined with the support of the baffle. The baffle prevents the foam from squeezing the horizontal bracing and causing deformation, ensuring that the foam is evenly filled and has a stable density, thus optimizing the sound insulation, heat preservation and impact resistance performance.

[0020] 8. The supporting frame itself has high rigidity, which can reduce the amount of material used under the same load-bearing requirements; the flat frame makes it easy to match ultra-thin door panels, providing a technical basis for lightweight high-end interior door design. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a support structure used for interior doors.

[0022] Figure 2 This is a schematic diagram of the vertical border.

[0023] Figure 3 This is a schematic diagram of the vertical support.

[0024] Figure 4 This is a schematic diagram of the cross brace.

[0025] Figure 5 This is a schematic diagram of the horizontal border.

[0026] Figure 6 This is a schematic diagram of the rear end face of the support structure used for interior doors.

[0027] The component names in the attached diagram are: 1. Vertical frame, 101. Slot, 2. Horizontal frame, 201. Groove, 3. Horizontal brace, 301. Insert block, 302. Stop block, 4. Vertical brace, 401. Slot, 402. Attachment block. Detailed Implementation

[0028] 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.

[0029] Example 1: Refer to Figures 1-6 As shown, the support structure for the interior door includes a frame, with multiple vertical supports 4 and multiple horizontal supports 3 installed inside the frame. The upper and lower ends of the vertical supports 4 overlap with the upper and lower ends of the frame, respectively, and the left and right ends of the horizontal supports 3 are inserted into the left and right ends of the frame, respectively. The horizontal supports 3 are snapped into the slots 401 on the vertical supports 4, and the slots 401 are opened at the front end of the vertical supports 4.

[0030] The front faces of the horizontal brace 3, vertical brace 4, and frame are flush. The rear faces of the horizontal brace 3, vertical brace 4, and frame are flush. Multiple adhesive grooves are provided on the front and rear faces of the frame, horizontal brace 3, and vertical brace 4.

[0031] Multiple vertical supports 4 divide the interior of the frame into multiple cavities. Each cavity behind the horizontal support 3 is equipped with a stop block 302. The left and right ends of the stop block 302 are in contact with the left and right cavity walls of the cavity. The stop block 302 and the horizontal support 3 are fixedly connected by multiple steel nails. The rear end of the stop block 302 is flush with the rear end of the frame.

[0032] The frame includes two vertical frame 1s arranged symmetrically from left to right and two horizontal frame 2s arranged symmetrically from top to bottom, with the opposite ends of the vertical frame 1s and the horizontal frame 2s fixedly connected.

[0033] The two symmetrically arranged vertical frame 1s each have a slot 101 at their opposite ends. The slot 101 corresponds to the horizontal support 3. The front sides of both ends of the horizontal support 3 have longitudinal grooves. The part of the horizontal support 3 behind the longitudinal groove forms an insert 301. The insert 301 is inserted into the slot 101 of one side of the vertical frame 1.

[0034] The two horizontal frame frames 2, which are symmetrically arranged vertically, each have a groove 201 at their opposite ends. The vertical support 4 has a horizontal groove at the rear of both ends. The part of the vertical support 4 in front of the horizontal groove forms a block 402, which overlaps in the groove 201.

[0035] When assembling the support structure for interior doors, first fix the opposite ends of one of the vertical frame frames 1 and the two horizontal frame frames 2 together.

[0036] Then, multiple vertical supports 4 are placed between two horizontal frames 2, and the overlapping blocks 402 of the vertical supports 4 are located in the grooves 201, so that the ends of the vertical supports 4 overlap with the horizontal frames 2.

[0037] Place multiple horizontal supports 3 on the front of multiple vertical supports 4, with the vertical supports 4 positioned between two adjacent stops 302 on the horizontal supports 3. Insert the insert 301 at one end of the horizontal support 3 into the slot 101 of one of the vertical frame 1. Then, fix the other vertical frame 1 to the two horizontal frames 2, and insert the insert 301 at the other end of the horizontal support 3 into the slot 101 of the other vertical frame 1. Finally, glue and fix the connection between the horizontal support 3 and the vertical support 4, thus fixing the frame to the connection between the horizontal support 3 and the vertical support 4.

[0038] Example 2: Based on Example 1, the interior door includes a support structure for the interior door, and door panels are heat-pressed and bonded to both ends of the support structure for the interior door.

[0039] After assembling the support structure for the interior door, glue and fix one of the door panels to the support structure, then fill the cavity with expanding foam, and finally glue and fix the other door panel to the support structure.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support structure for interior doors, comprising a frame, wherein a plurality of vertical braces (4) and a plurality of horizontal braces (3) are installed within the frame, characterized in that, The upper and lower ends of the vertical support (4) overlap with the upper and lower ends of the frame respectively, and the left and right ends of the horizontal support (3) are inserted into the left and right ends of the frame respectively. The horizontal support (3) is snapped into the slot (401) on the vertical support (4). The front ends of the horizontal support (3), the vertical support (4) and the frame are flush. The rear ends of the horizontal support (3), the vertical support (4) and the frame are flush. Multiple vertical supports (4) divide the interior of the frame into multiple cavities. Each cavity behind the horizontal support (3) is provided with a stop block (302). The left and right ends of the stop block (302) are in contact with the left and right cavity walls of the cavity. The stop block (302) is fixedly connected to the horizontal support (3). The rear end of the stop block (302) is flush with the rear end of the frame.

2. The support structure for an interior door according to claim 1, characterized in that, The slot (401) is located at the front end of the vertical support (4).

3. The support structure for an interior door according to claim 1, characterized in that, Multiple adhesive grooves are provided on the front and rear end faces of the frame, horizontal support (3) and vertical support (4).

4. The support structure for an interior door according to claim 1, characterized in that, The stop block (302) and the cross brace (3) are fixedly connected by multiple steel nails.

5. The support structure for an interior door according to claim 1, characterized in that, The frame includes two vertical frame (1) arranged symmetrically from left to right and two horizontal frame (2) arranged symmetrically from top to bottom, with the opposite ends of the vertical frame (1) and the horizontal frame (2) fixedly connected.

6. The support structure for an interior door according to claim 5, characterized in that, The two symmetrically arranged vertical frame (1) are provided with slots (101) at their opposite ends. The slots (101) correspond to the cross braces (3). The front sides of the left and right ends of the cross braces (3) are provided with longitudinal grooves. The cross braces (3) behind the longitudinal grooves form inserts (301). The inserts (301) are inserted into the slots (101) of the vertical frame (1) on one side.

7. The support structure for an interior door according to claim 5, characterized in that, The two horizontal frame frames (2) arranged symmetrically at the top and bottom each have grooves (201) at their opposite ends. The vertical support (4) has horizontal grooves at the rear sides of both the top and bottom ends. The vertical support (4) part in front of the horizontal groove forms a block (402), which overlaps in the groove (201).

8. An interior door, characterized in that, Includes a support structure for an interior door as described in any one of claims 1-6, wherein door panels are heat-pressed and bonded to both ends of the support structure for the interior door.

Images