Panel connector, cabinet door, cabinet

Abstract

The utility model discloses a kind of plate connecting piece, cabinet door, storage cabinet, including abutting piece, pressing piece, expansion piece being sleeved on pressing piece, the one end of abutting piece is provided with slot corresponding pressing piece, the one end of pressing piece is inserted in slot corresponding abutting piece, and with slot forms movable cooperation;The one end of expansion piece is used to abut abutting piece, and the other end is fixedly connected with pressing piece, when the pressing piece is pressed and in-depth inserted slot, pressing piece drives expansion piece to abut abutting piece and extrude expansion. Can improve plate connecting strength, satisfy traceless connection demand, alleviate the problem that middle plate is easy to fall off.

Description

Technical Field

[0001] This utility model relates to connectors, specifically sheet metal connectors, cabinet doors, and storage cabinets. Background Technology

[0002] In current home renovations, there is an increasing demand for seamless connections between panels. This is especially true for some Chinese-style cabinet doors, which require an outer frame and a central panel to create a unique Chinese-style effect.

[0003] After the middle plate is installed in the outer frame, a decorative panel is usually needed to be installed in the outer frame with glue to cover the middle plate and prevent it from coming off. However, this installation is not strong enough, and the middle plate is easily detached by external force. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a board connector, cabinet door and storage cabinet that can improve the connection strength of the board, meet the requirements of seamless connection and alleviate the problem of easy detachment of the middle board.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sheet metal connector, comprising an abutment, a pressing member, and an expansion member sleeved on the pressing member. The abutment has a slot at one end corresponding to the pressing member, and the pressing member is inserted into the slot at one end corresponding to the abutment, forming a movable fit with the slot. One end of the expansion member is used to abut against the abutment, and the other end is fixedly connected to the pressing member. When the pressing member is pressed into the slot, the pressing member drives the expansion member to abut against the abutment and compress and expand.

[0006] As a further improvement of this utility model, the expansion member is a metal sheet, and the expansion member is provided with a plurality of through holes extending along the pressing direction of the pressing member in the circumferential direction, and the middle part of the expansion member protrudes outward from both ends.

[0007] As a further improvement of this utility model, the surface of the expansion member has a notch along the pressing direction of the pressing member, and the cross-section of the expansion member forms a C-shape through the notch.

[0008] As a further improvement of this utility model, the expansion member is provided with a plurality of barbs, the barbs being arranged along the pressing direction of the pressing member; and / or the barbs being arranged along the circumferential direction of the expansion member.

[0009] As a further improvement of this utility model, a groove is provided at the other end of the pressing member that is opposite to the abutting member.

[0010] As a further improvement of this utility model, the inner wall of the groove is provided with an internal thread.

[0011] A cabinet door is also provided, including a frame with a mounting frame and a middle plate installed in the mounting frame. The side of the frame is provided with a through hole, and the middle plate is provided with a blind hole at the position corresponding to the through hole. The middle plate and the frame are connected by a plate connector as described in any of the above. After the abutting member and the pressing member are pressed into place, the abutting member is pressed into the slot and drives the expansion member to expand, so as to connect the frame and the middle plate.

[0012] As a further improvement of this utility model, a decorative panel is installed on the cabinet door at the position corresponding to the mounting frame. The decorative panel is set along the edge of the mounting frame and covers the gap between the middle plate and the frame.

[0013] As a further improvement of this utility model, the outer periphery of the frame is covered by a plate sealing strip, which at least covers the through hole.

[0014] A locker is also provided, comprising a cabinet body and a door as described above, the door being hinged to the cabinet body for opening and closing the locker.

[0015] The beneficial effects of this utility model are as follows: through the cooperation of the abutment member, the pressing member, and the expanding member, when the pressing member is pressed into the slot of the abutment member, it can drive the expanding member to abut against the abutment member and compress and expand. The expanded member can fill the installation space of the boards to be connected, achieving a stable connection between the boards. Compared with the existing technology that relies on glue for connection, this structure can effectively improve the connection strength of the boards and alleviate the problem of the middle board easily falling off under external force. At the same time, it does not require a visible connection structure on the surface of the boards, which can meet the requirements of seamless connection of boards and is suitable for scenarios with high requirements for appearance, such as Chinese-style cabinet doors. Moreover, it does not require additional solutions such as threaded gaskets for installation, resulting in a better seamless effect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the plate connector of this utility model; Figure 2 This is a schematic diagram of the main structure of the plate connector of this utility model; Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure in the diagram; Figure 4 This is a schematic diagram of part of the cabinet door structure of this utility model.

[0017] Reference numerals: 1. Abutment; 11. Slot; 2. Pressing part; 21. Groove; 3. Expansion part; 31. Through hole; 32. Notch; 4. Frame; 41. Mounting frame; 5. Middle plate; 6. Decorative panel. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0019] Reference Figure 1-4 As shown, This embodiment provides a sheet metal connector, including an abutment 1, a pressing member 2, and an expansion member 3 sleeved on the pressing member 2. The abutment 1 has a slot 11 at one end corresponding to the pressing member 2. The pressing member 2 is inserted into the slot 11 at one end corresponding to the abutment 1, and forms a movable fit with the slot 11. One end of the expansion member 3 is used to abut the abutment 1, and the other end is fixedly connected to the pressing member 2. When the pressing member 2 is pressed into the slot 11, the pressing member 2 drives the expansion member 3 to abut the abutment 1 and compress and expand.

[0020] In actual assembly, the abutment 1 can be pre-installed in the preset mounting hole of one of the plates to be connected (such as the cabinet door middle plate 5). Through interference fit or positioning structure, ensure that the opening of the slot 11 of the abutment 1 faces the other plate to be connected (such as the cabinet door frame 4). Then, insert one end of the pressing member 2 with the expansion member 3 into the slot 11 of the abutment 1 along the axial direction of the slot 11. At this time, the pressing member 2 can move freely along the axial direction of the slot 11 and maintain a movable fit with the slot 11. The expansion member 3 is not squeezed and is in the initial contracted state. When a fixed connection between two plates is required, axial pressure is applied to the end of the pressing member 2 away from the abutment member 1, causing the pressing member 2 to penetrate deeper into the slot 11 along its depth direction. During this process, the pressing member 2 drives the expansion member 3 to move synchronously towards the abutment member 1 through a fixed connection structure (such as welding or snap-fit). Since one end of the expansion member 3 always abuts against the end face of the abutment member 1, as the pressing member 2 continues to penetrate deeper, the abutment member 1 will generate a reverse axial abutment force on the expansion member 3, thereby forcing the expansion member 3 to expand and deform radially. The expanded expansion member 3 can tightly fill the gap between the mounting hole of the plates to be connected and the abutment member 1 and the pressing member 2, and the two plates are stably connected together through radial abutment force. Compared with the glue connection method used in the prior art, this structure can effectively improve the strength of the plate connection, alleviate the problem of the middle plate 5 being easily detached by external force, and at the same time, it does not require the setting of obvious connection structures such as screws and clips on the plate surface, which helps to meet the requirement of seamless plate connection.

[0021] In order to improve the structural strength and expansion stability of the expansion member 3, in one optional scheme, the expansion member 3 is a metal sheet (preferably a material that will not recover or has a low recovery rate after expansion and deformation), and the expansion member 3 is provided with a number of through holes 31 extending along the pressing direction of the pressing member 2 in the circumferential direction, and the middle part of the expansion member 3 protrudes outward from both ends.

[0022] During assembly, the expansion member 3, made of metal (such as spring steel or galvanized steel), is fitted onto the pre-installed section of the pressing member 2, ensuring that the protruding part of the expansion member 3 faces the inner wall of the mounting hole of the plate to be connected, and that the circumferentially evenly distributed through holes 31 are consistent with the pressing direction of the pressing member 2. When the pressing member 2 is pressed, it drives the expansion member 3 to move towards the abutment member 1 and is squeezed. The metal sheet expansion member 3 has good deformation capacity and can maintain sufficient structural strength after expansion. At the same time, the circumferentially arranged through holes 31 make the deformation of each part of the expansion member 3 more uniform. The structure of the expansion member 3 protruding outward from the middle of its two ends can contact the inner wall of the mounting hole more quickly during the expansion process and form an effective abutment, shortening the stroke of the expansion member 3 to reach a stable connection state, further improving the stability of the connection and the assembly efficiency, and helping to improve the service life and reliability of the plate connector.

[0023] To further optimize the deformation path of the expansion member 3 and make it easier to achieve a uniform expansion effect, in one alternative, the surface of the expansion member 3 has a notch 32 along the pressing direction of the pressing member 2, and the cross-section of the expansion member 3 forms a C-shape through the notch 32.

[0024] The C-shaped expansion member 3 is more easily fitted onto the pressing member 2 through the notch 32. At the same time, the C-shaped expansion member 3 is easier to manufacture and can be formed by bending a sheet structure; in addition, after expansion, the notch 32 of the C-shaped structure can also accommodate the small dimensional deviations of the mounting hole, compensating for dimensional errors through slight deformation.

[0025] To enhance the interlocking force between the expansion member 3 and the mounting hole of the plate to be connected, and to reduce the risk of loosening of the connector, in one optional embodiment, the expansion member 3 is provided with several barbs, the barbs being arranged along the pressing direction of the pressing member 2; and / or the barbs being arranged along the circumference of the expansion member 3.

[0026] The barbs can be arranged along the pressing direction to prevent the pressing component 2 from coming out in the opposite direction. When the expansion component 3 expands under the action of the pressing component 2, the tips of the barbs will embed into the inner wall of the mounting hole of the plate to be connected. The barbs arranged along the pressing direction can restrict the pressing component 2 from reversing and exiting the slot 11 after the connection is completed through a one-way interlocking structure. The barbs can further improve the connection strength between the expansion component 3 and the plate, reduce the loosening of the connector due to vibration and external impact during long-term use, and help improve the stability and durability of the plate connection. The barbs can be formed by cutting the surface of the expansion component 3 with a blade. They can be directly cut on the sheet structure, and then punched to form a through hole 31 and bent to form a C-shaped structure.

[0027] In order to facilitate the application of pressure to the pressing member 2, in one alternative embodiment, the pressing member 2 is provided with a groove 21 at the other end opposite to the abutting member 1.

[0028] During assembly, the end of the pressing member 2 with the groove 21 should face away from the abutment member 1, ensuring that the opening of the groove 21 faces outward and is easy for tools to insert. When it is necessary to press the pressing member 2, a screwdriver, a pin, or a special pressing tool can be inserted into the groove 21. After the tool makes contact with the inner wall of the groove 21, axial pressure is applied to the pressing member 2 through the tool, making it easier for the pressing member 2 to overcome friction and penetrate into the slot 11. Compared with the pressing member 2 without the groove 21, the setting of the groove 21 provides a stable positioning point for the force-applying tool, avoids the tool from slipping during the application of force, and improves the convenience and safety of operation.

[0029] To further expand the functionality of the pressing component 2 and adapt it to more connection scenarios and operation methods, in one optional solution, an internal thread is provided on the inner wall of the groove 21. This internal thread is mainly used to fill the glue. After the glue solidifies, it forms a stable connection with the internal thread, preventing the solidified glue from falling off.

[0030] In addition to the aforementioned panel connectors, this embodiment also provides a cabinet door, including a frame 4 with a mounting frame 41 and a middle plate 5 installed in the mounting frame 41. The side of the frame 4 is provided with a through hole, and the middle plate 5 is provided with a blind hole at the position corresponding to the through hole. The middle plate 5 and the frame 4 are connected by any of the aforementioned panel connectors. After the abutment 1 and the pressing 2 are pressed into place, the abutment 1 is pressed into the slot 11 and drives the expansion 3 to expand, so as to connect the frame 4 and the middle plate 5.

[0031] To improve the neatness of the cabinet door's appearance and further conceal the gap between the middle panel 5 and the frame 4, in one optional solution, a decorative panel 6 is installed on the cabinet door at the position corresponding to the mounting frame 41. The decorative panel 6 is set along the edge of the mounting frame 41 and covers the gap between the middle panel 5 and the frame 4. After the cabinet door assembly is completed and the connection between the middle panel 5 and the frame 4 is completed, a decorative panel 6 (such as solid wood decorative strip or PVC decorative panel 6) matching the material and color of the frame 4 is selected according to the style of the cabinet door. The decorative panel 6 is installed along the edge of the mounting frame 41 of the frame 4 using clips or a small amount of glue (only used to fix the decorative panel 6 and not to bear the connection force of the middle panel 5), ensuring that the inner edge of the decorative panel 6 can completely cover the gap between the middle panel 5 and the frame 4. The decorative panel 6 not only conceals the gap between the middle panel 5 and the frame 4, preventing dust, impurities, and moisture from entering and accumulating dirt that could affect the cabinet door's lifespan, but also enhances the cabinet door's appearance, making the edges more regular and strengthening the decorative effect of the Chinese-style cabinet door. Simultaneously, the decorative panel 6 further restricts the edge of the middle panel 5, reducing wobbling during opening and closing. Together with the panel connectors, it improves the connection stability between the middle panel 5 and the frame 4, enhancing the overall user experience of the cabinet door. For illustrative purposes, the decorative panel 6 is shown as a dotted line in the diagram.

[0032] To protect the through holes on the sides of frame 4 and prevent damage from external forces or the entry of impurities, in one optional solution, the outer perimeter of frame 4 is covered by a panel seal, ensuring that at least the through holes are completely covered. During cabinet door assembly, a panel seal (such as a wooden or rubber seal) compatible with the material of frame 4 is selected and fixed to the outer perimeter of frame 4 by adhesive or snap-fit, ensuring that the panel seal completely covers the through holes on the sides of frame 4. The length of the seal can be adjusted according to the perimeter of frame 4. The panel sealing strip provides physical protection for the through holes of the frame 4, preventing external objects (such as tools or debris) from impacting the edges of the through holes and causing the frame 4 to crack or break. It also prevents dust and moisture from entering the connecting parts inside the cabinet door through the through holes, preventing the connectors from getting damp and rusting or being affected by dust, thus ensuring the stability of the connection. In addition, the panel sealing strip makes the outer contour of the frame 4 smoother and more regular, reducing the risk of scratches to users caused by burrs on the edges of the frame 4. It also enhances the overall appearance and texture of the cabinet door. When used in conjunction with the decorative panel 6, it can further optimize the appearance and protective performance of the cabinet door, mitigating the impact of external environmental factors on the cabinet door connection structure.

[0033] Based on the cabinet door described above, this embodiment also provides a storage cabinet, including a cabinet body and any of the cabinet doors described above, wherein the cabinet door is hinged to the cabinet body to open and close the storage cabinet.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sheet metal connector, characterized in that, It includes a receiving member, a pressing member, and an expansion member sleeved on the pressing member. The receiving member has a slot at one end corresponding to the pressing member. The pressing member is inserted into the slot at one end corresponding to the receiving member and forms a movable fit with the slot. One end of the expansion member is used to abut against the receiving member, and the other end is fixedly connected to the pressing member. When the pressing member is pressed into the slot, the pressing member drives the expansion member to abut against the receiving member and compress and expand.

2. The plate connector according to claim 1, characterized in that, The expansion member is a metal sheet, and the expansion member has several through holes extending along the pressing direction of the pressing member in its circumferential direction. The expansion member protrudes outward from both ends in the middle.

3. The plate connector according to claim 2, characterized in that, The surface of the expansion member has a notch along the pressing direction of the pressing member, and the cross-section of the expansion member forms a C-shape through the notch.

4. The plate connector according to claim 2, characterized in that, The expansion member is provided with a plurality of barbs, which are arranged along the pressing direction of the pressing member; and / or the barbs are arranged along the circumferential direction of the expansion member.

5. The plate connector according to claim 1, characterized in that, The pressing member has a groove at the other end relative to the abutting member.

6. The plate connector according to claim 5, characterized in that, The inner wall of the groove is provided with internal threads.

7. A cabinet door, characterized in that, The device includes a frame with a mounting frame and a middle plate installed in the mounting frame. The side of the frame is provided with a through hole, and the middle plate is provided with a blind hole at the position corresponding to the through hole. The middle plate and the frame are connected by a plate connector as described in any one of claims 1 to 6. After the abutment and pressing member are pressed into place, the abutment is pressed into the slot and drives the expansion member to expand, so as to connect the frame and the middle plate.

8. The cabinet door according to claim 7, characterized in that, A decorative panel is installed on the cabinet door at the position corresponding to the mounting frame. The decorative panel is set along the edge of the mounting frame and covers the gap between the middle plate and the frame.

9. The cabinet door according to claim 7, characterized in that, The outer perimeter of the frame is covered by a sheet metal seal, which at least covers the through holes.

10. A storage cabinet, characterized in that, It includes a cabinet body and a cabinet door as described in claim 7, 8 or 9, the cabinet door being hinged to the cabinet body to open and close the storage cabinet.

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