CN113802793B

CN113802793B - Rotary lock catch assembly and assembled decorative plate assembly

Info

Publication number: CN113802793B
Application number: CN202111172013.3A
Authority: CN
Inventors: 厉夫俊; 请求不公布姓名
Original assignee: Shanghai Hongdian Sanitary Ware Technology Co ltd
Current assignee: Shanghai Hongdian Sanitary Ware Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2023-06-02
Anticipated expiration: 2041-10-08
Also published as: CN113802793A

Abstract

The invention provides a rotary lock catch assembly, which is used for connecting two parts to be connected, and comprises a first lock catch piece and a second lock catch piece which are connected with each other, wherein the first lock catch piece drives the second lock catch piece to rotate, the first lock catch piece is provided with an operation part for applying force by an application tool to drive the first lock catch piece to rotate, the first lock catch piece is matched with one of the two parts to be connected and driven by the application tool to switch between a locking state and an unlocking state, and the second lock catch piece is matched with the other of the two parts to be connected and driven by the first lock catch piece to switch between the locking state and the unlocking state. The rotary lock catch assembly provided by the invention is convenient and firm to connect and is in a hidden arrangement, and the attractiveness of the assembled decorative panel is not affected. The invention also provides a fabricated decorative plate assembly.

Description

Rotary lock catch assembly and assembled decorative plate assembly

Technical Field

The invention relates to the technical field of assembly type buildings, in particular to a rotary lock catch assembly and an assembly type decorative plate assembly.

Background

Fitting-up type decoration is an emerging decoration mode. Compared with the traditional decoration mode of floor, decoration panel and the like installation through cement and colloid bonding, the assembly type decoration has the advantages of simple assembly, clean construction process, easy disassembly and replacement and the like, is deeply favored by decoration manufacturers, and is one direction of research in the decoration industry. For the fabricated trim panel assembly technology, the trim panels are assembled and connected together through connectors. In order to avoid the exposed connecting piece from affecting the aesthetic property and the neat consistency of the assembled decorative plate assembly, the connecting piece is arranged to be hidden; however, the provision of the connection elements in a hidden manner is often difficult to handle, increasing the difficulty of operation and the risk of unreliable connection. Therefore, how to realize convenient and firm connection among the assembled decoration panels without affecting the aesthetic property after the assembly is completed is a technical problem to be overcome.

In view of this, the present application proposes a new technical solution to overcome the problems existing in the prior art.

Disclosure of Invention

The invention provides a rotary lock catch assembly and an assembled decorative board assembly, which are convenient and firm to connect and are connected in a hidden mode, and the attractiveness of the assembled decorative board is not affected.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the rotary lock catch assembly is used for connecting two parts to be connected and comprises a first lock catch piece and a second lock catch piece which are connected with each other, wherein the first lock catch piece drives the second lock catch piece to rotate, the first lock catch piece is provided with an operation part for applying force by an application tool to drive the first lock catch piece to rotate, the first lock catch piece is matched with one of the two parts to be connected and is driven by the application tool to switch between a locking state and an unlocking state, and the second lock catch piece is matched with the other of the two parts to be connected and is driven by the first lock catch piece to switch between the locking state and the unlocking state.

Further, the first locking piece further comprises a driving part, the second locking piece comprises a matching part matched with the driving part, the first locking piece is driven to rotate by the matching of the driving part and the matching part, the matching part and the driving part have a relative motion state and a synchronous motion state, the second locking piece is not driven to rotate by the rotation of the first locking piece in the relative motion state, and the second locking piece is driven to rotate synchronously by the rotation of the first locking piece in the synchronous motion state.

Further, one of the driving part and the matching part is a groove, the other one is a protrusion, the sliding movement of the protrusion in the groove is in the relative movement state, and the synchronous rotation movement of the protrusion after abutting against the end part of the groove is in the synchronous movement state.

Further, the first locking piece comprises a first buckling part connected with the operation part, the second locking piece comprises a second buckling part, and the first buckling part and the second buckling part are arranged on two sides of the operation part.

Further, the first fastening portion and the second fastening portion have a larger dimension in a first direction than in a second direction, and the first direction and the second direction are perpendicular to each other.

Further, an anti-slip structure is arranged on the first buckling part and/or the second buckling part, and the anti-slip structure is arranged at the end part of the first buckling part and/or the second buckling part in the first direction.

Further, the angle of the first locking piece and the second locking piece which can rotate relatively is not more than 90 degrees.

Further, the operation part is a regular polygon metal sheet, and the force application tool is a nut wrench.

Further, the first locking piece is connected with the second locking piece through a screw, a light hole is formed in the first locking piece, an internal thread pipe is arranged on the second locking piece, and the internal thread pipe penetrates through the light hole and is connected with the screw.

The invention also provides a fabricated decorative board assembly, which comprises a plurality of decorative boards arranged side by side and the rotary lock catch assembly, wherein each decorative board is provided with a lock catch groove, the rotary lock catch assembly is arranged between two adjacent decorative boards and connected in the lock catch grooves on the two adjacent decorative boards, and a first lock catch piece and a second lock catch piece of the rotary lock catch assembly are respectively inserted in the lock catch grooves in a first state and rotated to a second state in the lock catch grooves so as to be buckled with the lock catch grooves.

Further, an operation gap is formed between the two adjacent decoration panels, the operation portion is opposite to the operation gap, and the force application tool is inserted into the operation gap to be engaged with the operation portion.

Further, the fabricated trim panel assembly includes a packaging strip disposed in the operating gap.

Further, a metal wrapping edge is arranged on the side edge of the decoration panel, and the locking groove is formed on the metal wrapping edge.

Further, the width of the opening of the locking groove is smaller than the width of the groove inside the locking groove.

Further, the second locking piece is inserted into the locking groove of one decoration panel in a first state, the first locking piece is driven to synchronously rotate from the first state to the second state to be locked with the locking groove of the decoration panel by the first state to the second state, the first locking piece reversely rotates relative to the second locking piece, so that the first locking piece returns to the first state from the second state to be inserted into the locking groove of the other decoration panel, and the first locking piece is rotated to the second state from the first state to be locked with the locking groove of the other decoration panel.

Further, the second locking piece is inserted into the locking groove of one decoration panel in a first state, the first locking piece is driven to synchronously move from the second state to the first state and is rotated to the second state from the first state to be buckled with the locking groove of the decoration panel, and after the first locking piece is inserted into the locking groove of the other decoration panel in the first state, the first locking piece reversely rotates relative to the second locking piece, so that the first locking piece is rotated to the second state from the first state to be buckled with the locking groove of the other decoration panel.

The invention has the following beneficial effects: the rotary lock catch assembly comprises a first lock catch piece and a second lock catch piece which are connected with each other, wherein the first lock catch piece is provided with an operation part for a force application tool to apply force to drive rotation, and the rotation of the first lock catch piece can drive the second lock catch piece to rotate; therefore, the rotation control of the first locking piece and the second locking piece can be realized only through the operation part on the first locking piece, so that the parts for the operation of an external force application tool are simplified, and the hiding of the rotary locking assembly is easy to realize; furthermore, the first locking piece and the second locking piece have relative motion states, so that one of the first locking piece and the to-be-connected component, such as a decoration panel, can be locked and buckled, and the rotary locking assembly is positioned on the to-be-connected component, so that the subsequent connection with the other to-be-connected component is facilitated. The rotary lock catch assembly provided by the invention is convenient and firm to connect and is in a hidden arrangement, and the attractiveness of the assembled decorative panel is not affected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present invention and are not limiting of the present invention.

Fig. 1 is a perspective assembly view of the assembled trim panel assembly of the present invention in an assembled state.

Fig. 2 is an exploded perspective view of the assembled trim panel assembly of the present invention.

FIG. 3 is a schematic illustration of the connection of a trim panel of the assembled trim panel assembly of the present invention to a rotary latch assembly.

Fig. 4 is a partial enlarged view at a in fig. 3.

Fig. 5 is a partial enlarged view at B in fig. 3.

Fig. 6 is a side view of the assembled trim panel assembly of the present invention in an assembled condition.

Fig. 7 is a partial enlarged view at C in fig. 6.

Fig. 8 is an exploded perspective view of the rotary latch assembly of the present invention.

Fig. 9 is an exploded perspective view of another view of the rotary latch assembly of the present invention.

FIG. 10 is a schematic view of a rotary latch assembly of the present invention in section.

Reference numerals: 1-a first latch member; 11-an operation part; 12-a first fastening portion; 121-a first non-slip structure; 13-a light hole; 14-grooves; 2-a second locking piece; 21-a second fastening portion; 211-a second anti-slip structure; 22-an internally threaded tube; 23-bulge; 3-screws; 4-a nut wrench; 5-decoration panel; 501-an operation gap; 51-a plate body; 52-metal wrapping; 520-catch groove.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Unless defined otherwise, technical or scientific terms used in this patent document should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used merely to denote relative positional relationships, which may be changed accordingly when the absolute position of the object being described is changed, merely to facilitate description of the present invention and to simplify description, and not to indicate or imply that the apparatus or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. Features of the embodiments described below may be combined with each other without conflict.

Referring to fig. 1 to 10, the present invention provides a rotary latch assembly and a fabricated decoration board assembly having the same. The rotary lock catch assembly is used for connecting two parts to be connected, such as two decoration panels to be assembled together. The rotary latch assembly comprises a first latch part 1 and a second latch part 2 which are connected with each other, wherein the first latch part 1 drives the second latch part 2 to rotate, the first latch part 1 is provided with an operation part 11 for applying force by an application tool 4 to drive the first latch part 1 to rotate, the first latch part 1 is matched with one of the two parts to be connected and is driven by the application tool 4 to switch between a locking state and an unlocking state, and the second latch part 2 is matched with the other of the two parts to be connected and is driven by the first latch part 1 to switch between the locking state and the unlocking state. The first locking piece 1 further comprises a driving part, the second locking piece 2 comprises a matching part matched with the driving part, the first locking piece 1 rotates and can pass through the driving part to drive the second locking piece 2 to rotate through the matching of the driving part and the matching part, the matching part and the driving part have a relative motion state and a synchronous motion state, the rotation of the first locking piece 1 does not drive the second locking piece 2 to rotate in the relative motion state, and the rotation of the first locking piece 1 drives the second locking piece 2 to synchronously rotate in the synchronous motion state.

Referring to fig. 2 and 8 to 10, the first locking member 1 and the second locking member 2 are metal members, and the first locking member 1 and the second locking member 2 are connected by a screw 3. The first locking device 1 comprises an operating portion 11 which is a regular polygon metal sheet, the force application tool 4 is a nut wrench, and the nut wrench can be engaged on the operating portion 11 of the regular polygon metal sheet, so that the first locking device 1 is driven to rotate in the forward direction or the reverse direction. The first locking device 1 includes a pair of grooves 14, the pair of grooves 14 are formed on one side surface of the operating portion 11, and the pair of grooves 14 are arranged in a central rotational symmetry along the central axis of the first locking device 1. The grooves 14 are arc grooves with two closed ends, and the corresponding central angle of each groove 14 is not more than 90 degrees. The other side surface of the operation part 11 opposite to the side surface provided with the groove 14 is provided with a first buckling part 12, the first buckling part 12 and the operation part 11 are connected into a whole, the size of the first buckling part 12 in a first direction is larger than the size of the first buckling part in a second direction, and the first direction and the second direction are mutually perpendicular. The first fastening portion 12 is further provided with a first anti-slip structure 121 at an end portion in the first direction, in this embodiment, the first anti-slip structure 121 is a rib and groove structure formed on the first fastening portion 12, and in other embodiments, the first anti-slip structure 121 may be a bump and pit structure. The provision of the first non-slip structure 121 may enhance the stability of the engagement with other components at the end of the first snap 12. The central axis department of operating portion 11 has seted up the unthreaded hole 13 that runs through operating portion 11, unthreaded hole 13 is the smooth through-hole of internal surface, unthreaded hole 13's diameter is greater than the diameter of the screw rod of the screw 3 of connecting first latch component 1 and second latch component 2.

The second locking member 2 includes a second locking portion 21, and the second locking portion 21 is mounted on a side surface of the operating portion 11 opposite to the first locking portion 11, that is, the second locking portion 21 and the first locking portion 12 are partially disposed on two sides of the operating portion 11. Similar to the first fastening portion 12, the second fastening portion 21 has a different dimension in two directions perpendicular to each other, such as a dimension in the first direction that is greater than a dimension in the second direction. The second fastening part 21 is provided with a second anti-slip structure 211 at an end in the first direction, and the second anti-slip structure 211 may be one or more of a rib, a groove structure, a bump, and a pit structure, similar to the first anti-slip structure 121. The second fastening portion 21 is provided with a mating portion that mates with the driving portion of the first fastening member 1, and the mating portion is a protrusion 23. The protrusions 23 are a pair, and the positions of the protrusions correspond to the grooves 14 on the first locking piece 1. The protrusion 23 can slide in the groove 14, and the protrusion 23 slides in the groove 14, that is, the first locking piece 1 and the second locking piece 2 move relatively; the second locking piece 2 and the first locking piece 1 synchronously rotate after the protrusion 23 is abutted with the end part of the groove 14 and then continuously rotates. In other embodiments, the groove 14 may be provided on the second latch member 2, and the protrusion 23 may be provided on the first latch member 1. The second locking piece 2 is further provided with an internal thread pipe 22, the internal thread pipe 22 is inserted into the unthreaded hole 13 of the first locking piece 1, and the screw 3 is in threaded connection with the internal thread pipe 22 penetrating through the unthreaded hole 13, so that the second locking piece 2 is connected with the first locking piece 1. Since the second locking element 2 and the first locking element 1 are assembled with the light hole 13 through the internal thread tube 22, the second locking element 2 and the first locking element 1 can rotate relatively, and the relative rotation angle is limited by the matching of the protrusion 23 and the groove 14. In an embodiment, the angle of the first locking element 1 and the second locking element 2 that can rotate relatively is not greater than 90 degrees. Referring to fig. 10, when the length direction of the second fastening portion 21 is identical to the length direction of the first fastening portion 12, the protrusion 23 of the second fastening portion 21 is located at the end of the groove 14 of the operating portion 11, that is, the first fastening member 1 and the second fastening member 2 may rotate synchronously in a state that the length directions of the first fastening portion 12 and the second fastening portion 21 are identical, so that when the fastening member is to be engaged with the decorative panel, the first fastening portion 12 and the second fastening portion 21 may be not only locked individually, but also locked simultaneously.

According to the rotary lock catch assembly provided by the invention, the rotation control of the first lock catch member 1 and the second lock catch member 2 can be realized through the operation part 11 on the first lock catch member 1, so that the parts for the operation of the external force application tool 4 are simplified, and the hiding of the rotary lock catch assembly is easy to realize; further, the rotary latch assembly has the relative motion state and the synchronous motion state between the first latch member 1 and the second latch member 2, and one of the first latch member 1 and the second latch member 2 can be locked and buckled with a member to be connected (such as a decoration panel) due to the relative motion state, so that the rotary latch assembly is positioned on the member to be connected, and the subsequent connection with the other member to be connected is facilitated.

Referring to fig. 1-7, the rotary latch assembly described above may be used in connection with a fabricated trim panel assembly. The fabricated trim panel assembly may be a fabricated floor, wall panel, or the like. The assembled decorative board subassembly is including a plurality of decorative panels 5 that set up side by side, every decorative panel 5 has hasp groove 520, rotatory hasp subassembly sets up in the hasp groove 520 between two adjacent decorative panels 5 and connect on two adjacent decorative panels 5, rotatory hasp subassembly's first hasp piece 1 and second hasp piece 2 respectively with first state cartridge in hasp groove 520, and in hasp groove 520 internal rotation is in order with the hasp groove 520 lock to the second state.

The decoration panel 5 includes a panel body 51 and a metal binding 52 disposed at a side edge of the panel body 51, the panel body 51 may be made of concrete, and the metal binding 52 and the panel body 51 are connected as an integral body in an embedded manner. The metal binding 52 is formed with the locking groove 520. Referring to fig. 3 to 5, the width H1 of the opening of the latch slot 520 is smaller than the width H2 of the slot of the latch slot 520, and the latch slot 520 is a dovetail slot. The width H1 of the opening of the latch slot 520 is the same as the dimensions of the first fastening portion 12 and the second fastening portion 21 in the second direction, that is, the width H1 of the opening of the latch slot 520 is the same as the dimensions of the first fastening portion 12 and the second fastening portion 21. Thus, when the width direction of the first fastening portion 12 or the second fastening portion 21 is aligned with the width H1 direction of the opening of the latch slot 520, that is, when the length direction of the first fastening portion 12 or the second fastening portion 21 is aligned with the length direction of the latch slot 520, the first fastening portion 12 or the second fastening portion 21 can be inserted into the latch slot 520. The width H2 of the latch slot 520 is the same as the first dimension of the first fastening portion 12 and the second fastening portion 21, that is, the width H2 of the latch slot 520 is the same as the length dimension of the first fastening portion 12 and the second fastening portion 21. Thus, when the first fastening portion 12 or the second fastening portion 21 inserted into the locking groove 520 rotates in the groove until the length direction thereof is identical to the width direction of the locking groove 520, locking with the locking groove 520 is achieved, i.e., the locking state is achieved.

Referring to fig. 6 and 7, an operation gap 501 is formed between two adjacent decoration panels 5, the operation portion 11 is opposite to the operation gap 501, and the force application tool 4 is inserted into the operation gap 501 to engage with the operation portion 11. Further, the assembly decorative board assembly further comprises a sealing strip (not shown) disposed in the operation gap 501, and the sealing strip is disposed in the operation gap 501 to seal the operation gap 501 after the rotary tool 4 drives the rotary latch assembly and the decorative board 5 to be latched in place.

Referring to fig. 7 and 10, the assembly process of the fabricated decorative board assembly of an embodiment is as follows: the second locking piece 2 is inserted into the locking groove 520 of the decorative panel 5 in a first state, the first locking piece 1 is driven to rotate from the first state to the second state so as to be locked with the locking groove 520 of the decorative panel 5, the first locking piece 1 reversely rotates relative to the second locking piece 2, so that the first locking piece 1 returns to the first state from the second state so as to be inserted into the locking groove 520 of the other decorative panel 5, and the first locking piece 1 is rotated from the first state to the second state so as to be locked with the locking groove 520 of the other decorative panel 5. The first state is a state in which the longitudinal direction of the first engaging portion 12 and the second engaging portion 21 is aligned with the longitudinal direction of the lock groove 520, and is also an unlocked state; the second state is a state in which the longitudinal direction of the first engaging portion 12 and the second engaging portion 21 coincides with the width direction of the lock groove 520, and is also a locked state.

The assembly process of the fabricated trim panel assembly of another embodiment is as follows: the second locking piece 2 is inserted into the locking groove 520 of one decoration panel 5 in a first state, the first locking piece 1 is rotated from a second state to a first state to drive the second locking piece 2 to synchronously move and rotate from the first state to the second state to be locked with the locking groove 520 of the other decoration panel 5, and after the first locking piece 1 is inserted into the locking groove 520 of the other decoration panel 5 in the first state, the first locking piece 1 reversely rotates relative to the second locking piece 2 to enable the first locking piece 1 to rotate from the first state to the second state to be locked with the locking groove 520 of the other decoration panel 5. The first state is a state in which the longitudinal direction of the first engaging portion 12 and the second engaging portion 21 is identical to the longitudinal direction of the locking groove 520, that is, an unlocked state; the second state is a state in which the longitudinal direction of the first engaging portion 12 and the second engaging portion 21 coincides with the width direction of the locking groove 520, that is, a locked state.

As can be seen from the above description of the specific embodiments, the assembled decorative board assembly provided by the present invention can achieve the locking of the first locking member 1 and the second locking member 2 with the two adjacent decorative boards 5 only by the forward and reverse rotation operations of the operation portion 11. Moreover, the second locking piece 2 can be locked with one decoration panel 5 first, so that the rotary locking assembly is integrally positioned in the locking groove 520 of the decoration panel 5 without sliding and shifting, then the other decoration panel 5 is assembled, and the first locking piece 1 is locked with the other decoration panel, namely, the assembly connection of two adjacent decoration panels 5 is completed. The assembled decorative board assembly provided by the invention is convenient and firm to connect, and the adopted rotary lock catch assembly is arranged in a hidden mode, so that the attractiveness of the assembled decorative board 5 is not affected.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. A rotary latch assembly for connecting two members to be connected, the rotary latch assembly comprising a first latch member and a second latch member connected to each other, wherein the first latch member drives the second latch member to rotate, the first latch member has an operation portion for a force application tool to apply force to drive the first latch member to rotate, the first latch member is engaged with one of the two members to be connected and driven by the force application tool to switch between a locked state and an unlocked state, and the second latch member is engaged with the other of the two members to be connected and driven by the first latch member to switch between a locked state and an unlocked state;

the first locking piece further comprises a driving part, the second locking piece comprises a matching part matched with the driving part, the first locking piece is driven to rotate by the matching of the driving part and the matching part, the matching part and the driving part have a relative motion state and a synchronous motion state, the second locking piece is not driven to rotate by the rotation of the first locking piece in the relative motion state, and the second locking piece is driven to rotate synchronously by the rotation of the first locking piece in the synchronous motion state.

2. The rotary latch assembly of claim 1 wherein one of the drive portion and the mating portion is a recess and the other is a projection, wherein sliding movement of the projection within the recess is the relative movement, and wherein synchronous rotational movement of the projection upon abutment with an end of the recess is the synchronous movement.

3. The rotary latch assembly of claim 2 wherein the first latch member includes a first latch portion coupled to the operating portion and the second latch member includes a second latch portion, the first latch portion and the second latch portion being disposed on opposite sides of the operating portion.

4. The rotary latch assembly of claim 3 wherein the first and second latching portions have a dimension in a first direction that is greater than a dimension in a second direction, the first and second directions being perpendicular to each other.

5. The rotary latch assembly of claim 4 wherein the first and/or second latch portions are provided with an anti-slip structure disposed at an end of the first and/or second latch portions in a first direction.

6. The rotary latch assembly of claim 1 wherein the first latch member and the second latch member are rotatable relative to each other by an angle of no more than 90 degrees.

7. The rotary latch assembly according to any one of claims 1 to 6 wherein the operating portion is a regular polygonal sheet metal and the biasing tool is a nut runner.

8. The rotary latch assembly according to any one of claims 1 to 6 wherein said first latch member and said second latch member are connected by a screw, an optical aperture is provided in said first latch member, an internally threaded tube is provided in said second latch member, and said internally threaded tube is connected to said screw through said optical aperture.

9. A fabricated decorative panel assembly comprising a plurality of decorative panels arranged side by side and a rotary latch assembly according to any one of claims 1 to 8, each of the decorative panels having a latch slot, the rotary latch assembly being disposed between and connected to the latch slots on two adjacent decorative panels, a first latch member and a second latch member of the rotary latch assembly being respectively inserted in the latch slots in a first state and rotated to a second state in the latch slots to be latched with the latch slots.

10. A fitted type trim panel assembly as claimed in claim 9, wherein there is an operative gap between the two adjacent trim panels, the operative portion being opposite the operative gap, the urging means being inserted into the operative gap to engage the operative portion.

11. The fitted trim panel assembly of claim 10, wherein the fitted trim panel assembly comprises a potting strip disposed in the operating gap.

12. The fabricated decorative panel assembly of claim 9, wherein the side edges of the decorative panel are provided with metal trim edges, the metal trim edges forming the catch slots.

13. The fitted trim panel assembly of claim 9, wherein the width of the opening of the catch slot is less than the width of the slot therein.

14. The fabricated decorative panel assembly of claim 9, wherein the second locking member is inserted in the locking groove of one decorative panel in a first state, and the first locking member is rotated from the first state to a second state to drive the second locking member to synchronously rotate from the first state to the second state to be locked with the locking groove of the decorative panel, and the first locking member is rotated in a reverse direction relative to the second locking member, so that the first locking member returns from the second state to the first state to be inserted in the locking groove of another decorative panel, and the first locking member is rotated from the first state to the second state to be locked with the locking groove of the other decorative panel.

15. The fabricated decorative panel assembly of claim 9, wherein the second locking member is inserted in the locking groove of one decorative panel in a first state, and the first locking member is rotated from the second state to the first state to drive the second locking member to synchronously rotate from the first state to the second state to be locked with the locking groove of the decorative panel, and the first locking member is rotated reversely relative to the second locking member after the first locking member is inserted in the locking groove of the other decorative panel in the first state, so that the first locking member is rotated from the first state to the second state to be locked with the locking groove of the other decorative panel.