A decorative plate self-locking device and self-locking method

Abstract

The application discloses a kind of decorative plate self-locking device and self-locking method, it is related to railway wagon field, comprising: fixed seat component, one end is provided with first sliding slot, the other end of fixed seat component is provided with pre-tightening component;Movable limiting plate, movable and being provided in first sliding slot, locking limit and opening limit are provided on movable limiting plate, when opening limit cooperates with first sliding slot, decorative plate can be pre-positioned by pre-tightening component;Anti-jump component is set on fixed seat component, when anti-jump component is in natural state, the position of movable limiting plate in first sliding slot can be fixed;Fastening component is set on one end of movable limiting plate, and fastening component includes movable pressing plate, when locking limit cooperates with first sliding slot, decorative plate can be fixed by pressing plate;The self-locking device can reduce artificial installation investment, reduce installation cost, improve installation efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of railway freight cars, and more particularly relates to a decorative plate self-locking device and self-locking method. BACKGROUND

[0002] At present, in the field of railway freight cars, the interior decoration of the operating room of a ballast hopper car is composed of cold-proof materials, interior decorative plates, pressure strips and rivets. The interior decorative plates are generally made of high-pressure polyethylene foam plastic (PEF) or imitation cloth pattern galvanized steel plates with heat insulation and flame retardant properties. The pressure strips are made of aluminum pressure strips, and the interior decorative plates are riveted and fixed by aluminum pressure strips and blind rivets with a rivet spacing of no more than 250 mm. Problems and shortcomings in the process of fixing the interior decorative plates: first, the manual problem, the installation of the interior decorative plates must be completed by two people, one person places the interior decorative plates, and the other person arranges the aluminum pressure strips and uses rivets for riveting until the riveting of a single interior decorative plate is completed; second, the cost problem, the riveting with rivets with a spacing of no more than 250 mm requires a large number of rivets and has high cost; third, high maintenance cost, the rivets cannot be reused, and during maintenance, the rivets need to be broken and removed, which has large workload and high cost waste. SUMMARY

[0003] The present application aims to solve the problems existing in the prior art and provides a decorative plate self-locking device and self-locking method, which can reduce manual installation investment, reduce installation cost and improve installation efficiency.

[0004] To achieve the above-mentioned purpose, the present application provides a decorative plate self-locking device, comprising:

[0005] A fixed seat assembly having a first sliding groove at one end, and a pre-tightening assembly at the other end of the fixed seat assembly;

[0006] An active limiting plate movably arranged in the first sliding groove, and a locking limiting portion and an opening limiting portion are arranged on the active limiting plate, and when the opening limiting portion cooperates with the first sliding groove, the decorative plate can be pre-positioned by the pre-tightening assembly;

[0007] A jump-preventing assembly arranged on the fixed seat assembly, which can fix the position of the active limiting plate in the first sliding groove when the jump-preventing assembly is in a natural state;

[0008] A fastening assembly arranged at one end of the active limiting plate, the fastening assembly comprising a movable pressing plate, and when the locking limiting portion cooperates with the first sliding groove, the decorative plate can be fixed by the pressing plate.

[0009] Optionally, when the thickness of the decorative plate is not greater than 1mm, the pre-fastening assembly comprises a limiting block, which is in contact with the position of the wide side of the decorative plate.

[0010] Optionally, when the thickness of the decorative plate is greater than 1mm, the pre-fastening assembly comprises:

[0011] At least two telescopic rods, one end of the telescopic rod is provided with a limiting part, the other end of the telescopic rod penetrates the mounting hole of the fixing seat assembly and is hinged with the limiting connecting plate;

[0012] A first spring is sleeved on the part of the telescopic rod between the fixing seat assembly and the limiting connecting plate.

[0013] The limiting connecting plate is in contact with the position of the long side of the decorative plate.

[0014] Optionally, the other end of the telescopic rod is provided with an arc-shaped groove, the limiting connecting plate is provided with a supporting seat plate, the mounting hole on the supporting seat plate is provided with a round pin, and the round pin is in sliding connection with the arc-shaped groove.

[0015] Optionally, the fixing seat assembly comprises:

[0016] A fixing seat plate in a U shape, the first sliding groove is arranged on one end of the fixing seat plate, and the other end of the fixing seat plate is connected with the pre-fastening assembly.

[0017] A vertical plate connected with the fixing seat plate, the vertical plate is provided with a second sliding groove, and the movable limiting plate can penetrate the first sliding groove and the second sliding groove at the same time.

[0018] Optionally, the other end of the movable limiting plate is provided with a bent part, one side of the movable limiting plate is provided with a first limiting block, when the first limiting block is clamped with the inner side of the fixing seat plate, the decorative plate can be fixed by the pressing plate.

[0019] Optionally, one side of the movable limiting plate is further provided with two second limiting blocks, when the vertical plate is located between the two second limiting blocks, the decorative plate can be pre-positioned by the pre-fastening assembly.

[0020] Optionally, the anti-jumping assembly comprises a connecting block and a connecting shaft, the connecting block is connected with the vertical plate, the connecting shaft is screwed on the connecting block, one end of the connecting shaft close to the movable limiting plate is provided with a pressing block, and the part of the connecting shaft between the connecting block and the pressing block is sleeved with a second spring.

[0021] Optionally, the fastening assembly includes an adjusting seat plate, which is U-shaped. Both ends of the adjusting seat plate are connected to the movable limiting plate, and a threaded rod is screwed into the middle of the adjusting seat plate. One end of the threaded rod is provided with a torsion bar, and the other end of the threaded rod passes through the movable limiting plate and is connected to the pressure plate.

[0022] The present invention also provides a self-locking method for decorative panels, utilizing the aforementioned self-locking device for decorative panels, the method comprising:

[0023] The movable limiting plate is lifted to compress the anti-jump component, and the movable limiting plate moves within the first sliding groove;

[0024] Until the movable limiting plate moves to the opening limit position and engages with the first sliding groove, the decorative plate is inserted between the two pre-fastening components;

[0025] The movable limiting plate is lifted again to compress the anti-jump component, and the movable limiting plate moves within the first sliding groove;

[0026] Until the movable limiting plate moves to the locking limit position and engages with the first sliding groove, the fastening assembly is adjusted to press the pressure plate onto the decorative plate.

[0027] This invention provides a self-locking device and method for decorative panels, which has the following advantages: the self-locking device is highly manufacturable and reusable. Except for the connecting blocks of the fixing base assembly and the anti-jump assembly, all other key components can be disassembled and assembled on-site, facilitating later replacement and maintenance, saving maintenance costs, and demonstrating strong economic efficiency. The movable limit plate is also equipped with locking and opening limits, and an anti-jump assembly is provided on the basis of the limits to ensure the safe and reliable use of the device. In addition, the self-locking device has a simple principle and is easy to operate, greatly reducing labor input, lowering installation costs, and improving assembly efficiency. It can achieve installation and fastening for both thin and thick decorative panels, improving overall efficiency.

[0028] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0029] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0030] Figure 1 A schematic diagram is shown of a decorative panel self-locking device according to an embodiment of the present invention for fixing a decorative panel with a thickness of no more than 1 mm.

[0031] Figure 2 A schematic diagram of a decorative plate self-locking device fixing a decorative plate with a thickness greater than 1mm is shown according to an embodiment of the present application.

[0032] Figure 3 A structural schematic diagram of a fixing seat assembly when the pre-tightening assembly is a limiting block is shown according to an embodiment of the present application.

[0033] Figure 4 A structural schematic diagram of a fixing seat assembly when the pre-tightening assembly is a limiting connecting plate is shown according to an embodiment of the present application.

[0034] Figure 5 A schematic diagram of a decorative plate self-locking device when a decorative plate is pre-positioned is shown according to an embodiment of the present application.

[0035] Figure 6 A schematic diagram of a decorative plate self-locking device when a decorative plate is fixed by compression is shown according to an embodiment of the present application.

[0036] Figure 7 A connection schematic diagram of a fixing seat assembly and a limiting connecting plate is shown according to an embodiment of the present application.

[0037] Figure 8 A connection schematic diagram of a telescopic rod and a support seat plate is shown according to an embodiment of the present application.

[0038] Figure 9 A schematic diagram of a decorative plate self-locking device pre-positioning a decorative plate with a curved edge is shown according to an embodiment of the present application.

[0039] Figure 10 A structural schematic diagram of a movable limiting plate is shown according to an embodiment of the present application.

[0040] Figure 11 A structural schematic diagram of an anti-jumping assembly is shown according to an embodiment of the present application.

[0041] Figure 12 A structural schematic diagram of an adjusting seat plate is shown according to an embodiment of the present application.

[0042] Figure 13 A structural schematic diagram of a tightening assembly is shown according to an embodiment of the present application.

[0043] BRIEF DESCRIPTION OF THE DRAWINGS

[0044] 1, first sliding groove; 2, movable limiting plate; 3, decorative plate; 4, pressing plate; 5, limiting block; 6, telescopic rod; 7, limiting part; 8, limiting connecting plate; 9, first spring; 10, arc-shaped groove; 11, support seat plate; 12, round pin; 13, fixed seat plate; 14, vertical plate; 15, second sliding groove; 16, first limiting block; 17, second limiting block; 18, connecting block; 19, connecting shaft; 20, pressing block; 21, second spring; 22, adjusting seat plate; 23, threaded rod; 24, torsion bar. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0046] The present application provides a decorative plate self-locking device, comprising:

[0047] The fixed seat assembly has a first sliding groove at one end, and a pre-tightening assembly is arranged at the other end of the fixed seat assembly.

[0048] The movable limiting plate is movably arranged in the first sliding groove, and the movable limiting plate is provided with locking limiting and opening limiting. When the opening limiting is matched with the first sliding groove, the decorative plate can be pre-positioned by the pre-tightening assembly.

[0049] The anti-jump assembly is arranged on the fixed seat assembly, and when the anti-jump assembly is in a natural state, the position of the movable limiting plate in the first sliding groove can be fixed.

[0050] The tightening assembly is arranged at one end of the movable limiting plate, and the tightening assembly includes a movable pressing plate. When the locking limiting is matched with the first sliding groove, the decorative plate can be fixed by the pressing plate.

[0051] Specifically, the self-locking device, the fixed seat assembly as the main support component, first fixed seat assembly is fixed in the position around the need to install the decorative plate, because the movable limiting plate is inserted in the first sliding groove, moving the movable limiting plate to open the limiting position and the first sliding groove forms a specific relationship, the decorative plate can be placed between the two self-locking device, so that the pre-positioning of the decorative plate through the pre-tightening assembly, which is equivalent to manual way to hold the position of the interior trim panel, then move the movable limiting plate in the first sliding groove, when the locking limiting position and the first sliding groove form a specific position relationship, the pre-positioning of the decorative plate can be fixed by the fastening assembly, which is equivalent to the decorative plate is fixed by riveting, through the self-locking device for fixing the decorative plate, it is convenient for the subsequent disassembly and replacement of the decorative plate, and the self-locking device can be reused and repositioned, the device structure is simple and can be convenient for future maintenance, reduces the maintenance cost.

[0052] Optionally, when the thickness of the decorative plate is not greater than 1mm, the pre-tightening assembly comprises a limiting block, the limiting block is in contact with the wide side of the decorative plate.

[0053] Specifically, the self-locking device can adapt to the installation and fixation of thin decorative plate and thick decorative plate, when facing the decorative plate with a thickness of 0.1mm-1mm, the limiting block can be used as the pre-tightening assembly, the limiting block is arranged on the side of the two self-locking devices close to each other, when the opening limiting position of the movable limiting plate and the first sliding groove form a specific position relationship, the thin decorative plate can be placed between the two self-locking devices, so that the wide side of the thin decorative plate can be supported by the limiting block on both sides, realizing the pre-positioning of the thin decorative plate.

[0054] Optionally, when the thickness of the decorative plate is greater than 1mm, the pre-tightening assembly comprises:

[0055] At least two telescopic rods, one end of the telescopic rod is provided with a limiting part, the other end of the telescopic rod penetrates the mounting hole of the fixed seat assembly and is hinged with the limiting connecting plate;

[0056] The first spring is sleeved on the part of the telescopic rod between the fixed seat assembly and the limiting connecting plate.

[0057] The limiting connecting plate is in contact with the long side of the decorative plate.

[0058] Specifically, when facing the decorative plate with a thickness greater than 1 mm, the limiting connecting plate can be used as a pre-fastening assembly. The limiting connecting plate is also arranged on the side of the two self-locking devices close to each other. When the opening limiting of the movable limiting plate forms a specific positional relationship with the first sliding groove, the thick decorative plate is placed between the two self-locking devices. Since the limiting connecting plate is connected with the fixed seat assembly through the first spring and the telescopic rod, the fixed seat assembly is not changed in position, and the first spring can firmly adhere the movable limiting plate to the long side of the thick decorative plate. The two limiting connecting plates clamp the thick decorative plate from both sides to achieve pre-positioning.

[0059] In one embodiment, the limiting block is arranged on the fixed seat assembly in the decorative plate self-locking device, and the telescopic limiting connecting plate is also arranged. When the thickness of the decorative plate is less than 1 mm, the limiting block is directly used to support the wide bottom of the decorative plate. When the thickness of the decorative plate is greater than 1 mm, the limiting connecting plate can be used to clamp the long side of the decorative plate, so that the decorative plate can be pre-positioned.

[0060] Optionally, the other end of the telescopic rod is provided with an arc-shaped groove, and the limiting connecting plate is provided with a supporting seat plate. The mounting hole on the supporting seat plate is provided with a round pin, and the round pin is in sliding connection with the arc-shaped groove.

[0061] Specifically, since the edge shape of the decorative plate is different, when the thick decorative plate has an irregular edge, the limiting connecting plate is connected with the telescopic rod through the supporting seat plate. The end of the telescopic rod close to the limiting connecting plate is provided with an arc-shaped groove, and the supporting seat plate is provided with a mounting hole. A round pin is fitted and penetrated in the mounting hole. The round pin can also move in the arc-shaped groove along the arc angle. When the limiting connecting plate is attached to the thick decorative plate, the limiting connecting plate rotates relative to the telescopic rod flexibly due to the different profile angles. When the edge shape of the thin decorative plate is different, since the thickness of the thin decorative plate is less than 1 mm, the thin decorative plate is easily deformed under pressure. Only the edges of the thin decorative plate are trimmed to be neat, and the limiting block can be used for pre-positioning.

[0062] Optionally, the fixed seat assembly comprises:

[0063] The fixed seat plate is in a U shape. The first sliding groove is arranged on one end of the fixed seat plate. The other end of the fixed seat plate is connected with the pre-fastening assembly.

[0064] The vertical plate is connected with the fixed seat plate. The second sliding groove is arranged on the vertical plate. The movable limiting plate can be simultaneously penetrated into the first sliding groove and the second sliding groove.

[0065] Specifically, the fixed seat assembly is welded by a fixed seat plate and a vertical plate, the vertical plate is arranged in the middle of the fixed seat plate, a first sliding groove and a second sliding groove are respectively arranged on one end of the fixed seat plate and the vertical plate, the movable limiting plate can be simultaneously arranged in the two sliding grooves, the anti-jumping assembly is arranged on the vertical plate, when the movable limiting plate does not move, the anti-jumping assembly can press the movable limiting plate on the side wall of the two sliding grooves, so as to keep locking and limiting or opening limiting, and displacement of the movable limiting plate is avoided, when the movable limiting plate needs to move, the movable limiting plate is pressed against the anti-jumping assembly, so that the movable limiting plate can move in the two sliding grooves; the movable limiting plate is arranged from one end of the fixed seat plate to the other end, and a fastening assembly is further arranged on the end of the movable limiting plate, the height of the other end of the fixed seat plate is less than the height of one end of the fixed seat plate, and the fastening assembly does not interfere with the fixed seat assembly when moving with the movable limiting plate.

[0066] Optionally, the other end of the movable limiting plate is provided with a bending part, and a first limiting block is arranged on one side of the movable limiting plate, when the first limiting block is connected with the inner side of the fixed seat plate, the decorative plate can be fixed by the pressing plate.

[0067] Optionally, two second limiting blocks are further arranged on one side of the movable limiting plate, when the vertical plate is located between the two second limiting blocks, the decorative plate can be pre-positioned by the pre-fastening assembly.

[0068] Specifically, since the bending part is arranged on the movable limiting plate, the movable limiting plate cannot be separated from the first sliding groove, in addition, the first limiting block and the two second limiting blocks are further arranged on the movable limiting plate; when the two second limiting blocks are arranged on the two sides of the second sliding groove respectively, it is equivalent to that the opening limiting of the movable limiting plate forms a specific positional relationship with the first sliding groove, at this time, the decorative plate can be installed between the two pre-fastening assemblies, and the decorative plate is pre-positioned by the limiting block or the limiting connecting plate; then, the movable limiting plate is moved, until the bending part and the first limiting block of the movable limiting plate are arranged on the two sides of the first sliding groove respectively, it is equivalent to that the locking limiting of the movable limiting plate forms a specific positional relationship with the first sliding groove, at this time, the pressing plate of the fastening assembly can be pressed on the decorative plate to realize position fixing. In this way, when the first limiting block and the second limiting block are connected with the first sliding groove and the second sliding groove respectively by moving the movable limiting plate, the decorative plate can be locked, and the whole operation process is simple.

[0069] Optionally, the anti-jumping assembly comprises a connecting block and a connecting shaft, the connecting block is connected with the vertical plate, the connecting shaft is screwed on the connecting block, a pressing block is arranged on one end of the connecting shaft close to the movable limiting plate, and a second spring is arranged on the part of the connecting shaft between the connecting block and the pressing block.

[0070] Specifically, the thickness of the movable limiting plate corresponds to the width of the first sliding groove and the second sliding groove, so that the movable limiting plate can only move in the length direction of the two sliding grooves, when the pressing block presses the movable limiting plate on the side wall of the sliding groove under the action of the second spring, the first limiting block and the second limiting block are clamped with the side wall of the sliding groove, so that the movable limiting plate cannot move relative to the fixed seat assembly, when the movable limiting plate extrudes the pressing block, the clamping relationship between the first limiting block and the second limiting block and the sliding groove is eliminated, so that the movable limiting plate can be moved to pre-position and tightly fix the decorative plate.

[0071] Optionally, the fastening assembly comprises an adjusting seat plate, the adjusting seat plate is in the shape of a Chinese character'', the two ends of the adjusting seat plate are connected with the movable limiting plate, the middle part of the adjusting seat plate is screwed with a threaded rod, one end of the threaded rod is provided with a torsion bar, and the other end of the threaded rod penetrates through the movable limiting plate and is connected with the pressing plate.

[0072] Specifically, the fastening assembly comprises an adjusting seat plate, a threaded rod, a torsion bar and a pressing plate, the adjusting seat plate is arranged on the movable limiting plate, the threaded rod penetrates through the adjusting seat plate and the movable limiting plate, the torsion bar is arranged above the adjusting seat plate and is used for rotating the threaded rod to adjust the up-down position of the threaded rod, and the pressing plate is arranged below the movable limiting plate, when the bending part of the movable limiting plate and the first limiting block are arranged on the two sides of the first sliding groove respectively, the pressing plate can be pressed on the decorative plate by rotating the threaded rod to realize tight fixing; when the movable limiting plate needs to be moved, the pressing plate also needs to be pressed on the movable limiting plate by rotating the threaded rod, so that the fastening assembly and the fixed seat plate realize avoidance.

[0073] In one embodiment, the torsion bar and the threaded rod adopt interference fit, the threaded rod and the adjusting seat plate adopt 30° wedge thread connection, and the threaded rod and the pressing plate adopt 30° wedge thread connection. There is a 30° wedge inclined surface at the tooth root of the 30° wedge female thread, when the bolt nut is tightened, the tooth tip of the bolt is tightly pressed on the wedge inclined surface of the female thread, so that a large locking force is generated. Due to the change of the tooth angle, the normal force generated by the contact between the threads and the bolt shaft forms an angle of 60°. Obviously, the normal pressure of the 30° wedge thread is much larger than the tightening pressure, therefore, the anti-loose friction generated is necessarily greatly increased, and the performance of anti-loose is achieved. The fastening assembly can move up and down at the locking limiting position through the pressing plate, so as to realize the pressing and loosening of the decorative plate.

[0074] The application also provides a self-locking method of a decorative plate, which utilizes the self-locking device of the decorative plate.

[0075] The movable limiting plate is lifted to compress the anti-jumping assembly, and the movable limiting plate moves in the first sliding groove.

[0076] The decorative panel is inserted between the two pre-fastened components when the movable limit plate moves to the open limit position and engages with the first sliding groove.

[0077] The movable limit plate is lifted again to compress the anti-jump component, and the movable limit plate moves within the first sliding groove;

[0078] Until the movable limit plate moves to the locking limit and engages with the first sliding groove, adjust the fastening assembly to press the pressure plate onto the decorative plate.

[0079] Example

[0080] like Figures 1 to 13 As shown, the present invention provides a self-locking device for decorative panels, comprising:

[0081] The fixed base assembly has a first sliding groove 1 at one end and a pre-tightening component at the other end.

[0082] The movable limiting plate 2 is movably inserted into the first sliding groove 1. The movable limiting plate 2 is provided with a locking limit and an opening limit. When the opening limit is engaged with the first sliding groove 1, the decorative plate 3 can be pre-positioned by the pre-tightening component.

[0083] An anti-jump component is installed on the fixed base component. When the anti-jump component is in its natural state, it can fix the position of the movable limit plate 2 in the first sliding groove 1.

[0084] A fastening assembly is provided at one end of the movable limiting plate 2. The fastening assembly includes a movable pressure plate 4. When the locking limit is engaged with the first sliding groove 1, the decorative panel 3 can be fixed by the pressure plate 4.

[0085] In this embodiment, when the thickness of the decorative panel 3 is no more than 1 mm, the pre-fastening component includes a limiting block 5, which is in contact with the wide edge of the decorative panel 3.

[0086] In this embodiment, when the thickness of the decorative panel 3 is greater than 1 mm, the pre-fastening assembly includes:

[0087] At least two telescopic rods 6, one end of the telescopic rod 6 is provided with a limiting part 7, and the other end of the telescopic rod 6 passes through the mounting hole of the fixed base assembly and is hinged to the limiting connecting plate 8;

[0088] The first spring 9 is sleeved on the part of the telescopic rod 6 located between the fixed seat assembly and the limiting connecting plate 8;

[0089] The limiting connecting plate 8 is attached to the long side of the decorative plate 3.

[0090] In the embodiment, the other end of the telescopic rod 6 is provided with an arc-shaped slot 10, the supporting seat plate 11 is arranged on the limiting connecting plate 8, the mounting hole of the supporting seat plate 11 is provided with a round pin 12, and the round pin 12 is in sliding connection with the arc-shaped slot 10.

[0091] In the embodiment, the fixed seat assembly comprises:

[0092] The fixed seat plate 13 is in U shape, the first sliding slot 1 is arranged on one end of the fixed seat plate 13, and the other end of the fixed seat plate 13 is connected with the pre-tightening assembly;

[0093] The vertical plate 14 is connected with the fixed seat plate 13, the second sliding slot 15 is arranged on the vertical plate 14, and the movable limiting plate 2 can penetrate the first sliding slot 1 and the second sliding slot 15 at the same time.

[0094] In the embodiment, the other end of the movable limiting plate 2 is provided with a bending part, one side of the movable limiting plate 2 is provided with the first limiting block 16, and when the first limiting block 16 is clamped with the inner side of the fixed seat plate 13, the decorative plate 3 can be fixed through the pressing plate 4.

[0095] In the embodiment, one side of the movable limiting plate 2 is further provided with two second limiting blocks 17, and when the vertical plate 14 is located between the two second limiting blocks 17, the decorative plate 3 can be pre-positioned through the pre-tightening assembly.

[0096] In the embodiment, the anti-jumping assembly comprises a connecting block 18 and a connecting shaft 19, the connecting block 18 is connected with the vertical plate 14, the middle part of the connecting shaft 19 is screwed on the connecting block 18, the end of the connecting shaft 19 close to the movable limiting plate 2 is provided with a pressing block 20, and the part of the connecting shaft 19 between the connecting block 18 and the pressing block 20 is sleeved with the second spring 21.

[0097] In the embodiment, the tightening assembly comprises an adjusting seat plate 22, the adjusting seat plate 22 is in the shape of a Chinese character'', the two ends of the adjusting seat plate 22 are connected with the movable limiting plate 2, the middle part of the adjusting seat plate 22 is screwed with a threaded rod 23, one end of the threaded rod 23 is provided with a torsion bar 24, the other end of the threaded rod 23 penetrates the movable limiting plate 2 and is connected with the pressing plate 4.

[0098] The application also provides a self-locking method of a decorative plate, which utilizes the self-locking device of the decorative plate, and the method comprises the following steps:

[0099] The movable limiting plate 2 is lifted to compress the anti-jumping assembly, and the movable limiting plate 2 moves in the first sliding slot 1;

[0100] Until the movable limiting plate 2 moves to the open limiting position and cooperates with the first sliding slot 1, the decorative plate 3 is inserted between the two pre-tightening assemblies;

[0101] The movable limiting plate 2 is lifted again to compress the anti-jumping assembly, and the movable limiting plate 2 moves in the first sliding groove 1;

[0102] Until the movable limiting plate 2 moves to the locking position and cooperates with the first sliding groove 1, the adjusting fastening assembly is used to press the pressing plate 4 on the decorative plate 3.

[0103] In summary, when the self-locking device is used to install the decorative plate with a thickness of not more than 1 mm, four self-locking devices are arranged around the position where the decorative plate 3 is installed, and are fixed and connected through the fixed seat plate 13, and the distance between the limiting blocks 5 of the two self-locking devices at the bottom is ensured to be less than the width of the decorative plate 3, and then the movable limiting plate 2 is lifted to compress the anti-jumping assembly, so that the movable limiting plate 2 is moved, and the second limiting block 17 is located at the two sides of the second sliding groove 15, at this time the decorative plate 3 can be inserted from top to bottom between the two fixed seat assemblies, so that the bottom wide side of the decorative plate 3 is supported by the limiting blocks 5, and then the top of the decorative plate 3 is inserted below the limiting connecting plate 8 from bottom to top, and then the movable limiting plate 2 is moved to the position where the bending part and the first limiting block 16 are located at the two sides of the first sliding groove 1, and finally the pressing plate 4 is pressed against the decorative plate 3 by rotating the threaded rod 23; when the decorative plate with a thickness greater than 1 mm is installed, four self-locking devices are also arranged around the position where the decorative plate 3 is installed, and the distance between the limiting connecting plates 8 at the two sides is ensured to be less than the width of the decorative plate 3 under the natural state of the first spring 9, the movable limiting plate 2 of the self-locking device is first adjusted to the position where the second limiting block 17 is located at the two sides of the second sliding groove 15, then the interior trim plate is pressed on the same side limiting connecting plate 8, at this time the first spring 9 at this side is contracted, then the decorative plate 3 is placed on the two limiting connecting plates 8 at the other side, and then the movable limiting plate is moved, so that the bending part and the first limiting block 16 are located at the two sides of the first sliding groove 1, and finally the pressing plate 4 is pressed against the decorative plate 3.

[0104] The above has described the embodiments of the present application, and the above description is exemplary and is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A decorative panel self-locking device, characterized by, include: The fixing seat assembly has a first sliding groove at one end and a pre-tightening component at the other end. A movable limiting plate is movably inserted into the first sliding groove. The movable limiting plate is provided with a locking limit and an opening limit. When the opening limit is engaged with the first sliding groove, the decorative panel can be pre-positioned by the pre-fastening component. An anti-jump component is provided on the fixed base assembly. When the anti-jump component is in its natural state, it can fix the position of the movable limiting plate in the first sliding groove. A fastening assembly is disposed at one end of the movable limiting plate. The fastening assembly includes a movable pressure plate. When the locking limit is engaged with the first sliding groove, the decorative panel can be fixed by the pressure plate.

2. The device according to claim 1, wherein When the thickness of the decorative panel is no more than 1 mm, the pre-fastening assembly includes a limiting block that is fitted to the wide edge of the decorative panel.

3. The device according to claim 1, wherein When the thickness of the decorative panel is greater than 1 mm, the pre-fastening assembly includes: At least two telescopic rods, one end of which is provided with a limiting part, and the other end of which passes through the mounting hole of the fixed base assembly and is hinged to the limiting connecting plate; The first spring is sleeved on the portion of the telescopic rod located between the fixed base assembly and the limiting connecting plate; The limiting connecting plate is attached to the long side of the decorative plate.

4. The self-locking device for decorative panels according to claim 3, characterized in that, The other end of the telescopic rod is provided with an arc-shaped groove, and a support plate is provided on the limiting connection plate. A round pin is provided in the mounting hole on the support plate, and the round pin is slidably connected to the arc-shaped groove.

5. The self-locking device for decorative panels according to claim 1, characterized in that, The mounting bracket assembly includes: The fixed base plate is U-shaped, and the first sliding groove is disposed on one end of the fixed base plate. The other end of the fixed base plate is connected to the pre-tightening assembly. An upright plate is connected to the fixed base plate. The upright plate is provided with a second sliding groove, and the movable limiting plate can pass through both the first sliding groove and the second sliding groove simultaneously.

6. The self-locking device for decorative panels according to claim 5, characterized in that, The other end of the movable limiting plate is provided with a bending part, and a first limiting block is provided on one side of the movable limiting plate. When the first limiting block is engaged with the inner side of the fixed base plate, the decorative panel can be fixed by the pressure plate.

7. The self-locking device for decorative panels according to claim 6, characterized in that, Two second limiting blocks are also provided on one side of the movable limiting plate. When the upright plate is located between the two second limiting blocks, the decorative plate can be pre-positioned by the pre-fastening assembly.

8. The self-locking device for decorative panels according to claim 5, characterized in that, The anti-jump assembly includes a connecting block and a connecting shaft. The connecting block is connected to the upright plate. The middle part of the connecting shaft is screwed onto the connecting block. A pressure block is provided at one end of the connecting shaft near the movable limiting plate. A second spring is sleeved on the part of the connecting shaft located between the connecting block and the pressure block.

9. The self-locking device for decorative panels according to claim 1, characterized in that, The fastening assembly includes an adjusting seat plate, which is shaped like a "Z". Both ends of the adjusting seat plate are connected to the movable limiting plate. A threaded rod is screwed into the middle of the adjusting seat plate. One end of the threaded rod is provided with a torsion bar, and the other end of the threaded rod passes through the movable limiting plate and is connected to the pressure plate.

10. A method for self-locking decorative panels, utilizing the self-locking device for decorative panels according to any one of claims 1-9, characterized in that, The method includes: The movable limiting plate is lifted to compress the anti-jump component, and the movable limiting plate moves within the first sliding groove; Until the movable limiting plate moves to the opening limit position and engages with the first sliding groove, the decorative plate is inserted between the two pre-fastening components; The movable limiting plate is lifted again to compress the anti-jump component, and the movable limiting plate moves within the first sliding groove; Until the movable limiting plate moves to the locking limit position and engages with the first sliding groove, the fastening assembly is adjusted to press the pressure plate onto the decorative plate.

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