Installation Structure of Prefabricated Partition Board with Hidden Connector for Public Toilet

Abstract

An installation structure of a concealed connector prefabricated partition board for a public toilet, comprising a wall body and a partition board, which are fixedly connected through a connector; an installation plate is provided on the outer side of the wall body, and a wall board is also provided on the outer side of the wall body; the partition board comprises a plurality of first vertical keels, second vertical keels and decorative plates; the connector comprises a plurality of worm gear devices, and each worm gear device comprises a cylindrical body, and an annular worm gear plate is sleeved in the middle of the body; circular baffles are provided at both ends of the body, a circular hole is formed in the middle of the baffle, a screw rod passes through the two circular holes, and the middle of the locking plate is sleeved on the screw rod; a worm connecting device is sleeved on the outer periphery of the body, the worm connecting device comprises two collar rings, and the two collar rings are fixedly connected through a connecting plate with a C-shaped cross section, and a vertical worm is arranged in each connecting plate, and the thread of the worm is meshed with the tooth holes of each worm gear plate; the body is located in the second vertical keel, and both ends of the locking plate are abutted against two third vertical plates of the second vertical keel.

Description

Technical Field

[0001] The present invention relates to a toilet partition board, in particular to an installation structure of a prefabricated partition board with concealed connectors for public toilets. Background Art

[0002] At present, most of the partition boards for public toilets in building interiors are assembled on-site using exposed assembly connectors. For example, the partition board is connected to the wall or two partition boards are connected through L-shaped angle codes. Although the assembly efficiency is greatly improved, for projects with high requirements for decoration effects, it is still necessary to eliminate the drawback that the exposed assembly connectors affect the aesthetics and improve their decoration effects and quality. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an installation structure of a prefabricated partition board with concealed connectors for public toilets, which has a simple structure, is easy to install, can conceal the connectors, and improves the appearance effect and quality.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An installation structure of a prefabricated partition board with concealed connectors for public toilets includes a wall and a partition board, which are fixedly connected through a connector, and the partition board is perpendicular to the wall;

[0006] An installation plate is provided on the outer side of the wall, and the installation plate is fixed on the wall through expansion bolts; a wall board is also provided on the outer side of the wall, and a vertical installation notch is provided at the position corresponding to the partition board on the wall board;

[0007] The partition board includes a plurality of first vertical keels, and a second vertical keel is fixedly provided on the side of the first vertical keel close to the wall facing the wall. The cross-section of the second vertical keel is C-shaped, and includes a first vertical plate fixedly connected to the first vertical keel and second vertical plates vertically connected to both ends of the first vertical plate. Third vertical plates perpendicular to the second vertical plates extend inwards at the ends of each second vertical plate, and the two third vertical plates are respectively located on both sides of the installation notch and abut against the wall board; a decorative board is covered on the outer side of each first vertical keel, and one end of the decorative board facing the wall blocks the outer side of the second vertical plate;

[0008] The connecting piece includes a number of worm gear devices. Each worm gear device includes a cylindrical body. An annular worm gear plate is sleeved in the middle of the body. The worm gear plate is provided with tooth holes evenly distributed along the circumferential direction of the worm gear plate. Circular baffles are provided at both ends of the body, and the diameter of the baffles is larger than the outer diameter of the body, so that an annular groove is formed between the baffles and the worm gear plate. A circular hole is provided in the middle of the baffle. A screw rod passes through the two circular holes. The baffle close to the wall is the first baffle, and the baffle far from the wall is the second baffle. A rectangular locking plate is provided on the outer side of the first baffle, and the middle of the locking plate is sleeved on the screw rod. The screw rod is provided with a first nut, a second nut and a third nut. The first nut is located outside the locking plate, the second nut is located inside the first baffle, and the third nut is located outside the second baffle, so that the locking plate can rotate synchronously with the body. A conical end is provided at one end of the screw rod facing the wall, and the end is located in a conical sleeve, so that the end can rotate in the sleeve. A worm connecting device is sleeved on the outer periphery of the body. The worm connecting device includes two collar rings, which are respectively located in the two annular grooves and can rotate in the annular grooves. The two collar rings are fixedly connected by a top connecting plate with a C-shaped cross-section between their sides. The axes of the connecting plates of the connecting piece are located on the same vertical line, and vertical worms are provided in each connecting plate. The threads of the worms are engaged with the tooth holes of each worm gear plate. An adjusting end is provided at the top of the worm. The adjusting end is located at the top of the uppermost connecting plate, and an adjusting groove is provided on the top surface of the adjusting end. A limiting nut is provided at the bottom of the worm, and the limiting nut is located at the bottom of the lowermost connecting plate.

[0009] The worm gear device is located in the second vertical keel. The length of the locking plate is greater than the distance between the two third vertical plates and less than the distance between the two second vertical plates. The width of the locking plate is less than the distance between the two third vertical plates. Both ends of the locking plate are abutted against the two third vertical plates respectively. The screw rod passes through the installation notch, and the end of the sleeve is welded to the installation plate.

[0010] Further, each collar ring includes two oppositely arranged hoop fasteners. The cross-section of each hoop fastener is in an Ω shape, and both ends are fixedly connected by bolts.

[0011] Further, the tooth holes are strip-shaped.

[0012] Further, the adjusting groove is in a straight shape or a cross shape.

[0013] Further, a closable cover is provided at the top of the partition board corresponding to the position of the worm.

[0014] Further, the prefabricated partition board installation structure of the concealed connecting piece for public toilets further includes a corner partition board. One end of the partition board far from the wall is perpendicularly connected to the middle of the corner partition board.

[0015] The inside corner partition board comprises a plurality of first inside corner vertical keels, and the outer sides of the first inside corner vertical keels are covered with inside corner decorative boards; a second inside corner vertical keel is arranged in the middle of the inside corner partition board. The second inside corner vertical keel comprises a first inside corner vertical board and second inside corner vertical boards perpendicularly connected to both ends of the first inside corner vertical board. The ends of each second inside corner vertical board extend inwards to be provided with third inside corner vertical boards perpendicular to the second inside corner vertical boards. The ends of each third inside corner vertical board extend inwards to be provided with fourth inside corner vertical boards perpendicular to the third inside corner vertical boards. An inside corner installation notch is formed between the two fourth inside corner vertical boards; a vertical through groove is arranged at the position of the inside corner decorative board corresponding to the inside corner installation notch.

[0016] A third vertical keel is fixedly arranged on the outer side of the first vertical keel of the partition board close to the inside corner partition board. The third vertical keel has the same structure as the second vertical keel; the two third vertical boards of the third vertical keel are respectively located on both sides of the inside corner installation notch and abut against the inside corner decorative board.

[0017] Furthermore, the partition board and the inside corner partition board are fixedly connected through an inside corner connecting piece. The structure of the inside corner connecting piece is the same as that of the connecting piece; the worm gear device of the inside corner connecting piece is located inside the second inside corner vertical keel. The length of the locking plate of the inside corner connecting piece is greater than the distance between the two fourth inside corner vertical boards and less than the distance between the two second inside corner vertical boards. The width of the locking plate of the inside corner connecting piece is less than the distance between the two fourth inside corner vertical boards. The two ends of the locking plate of the inside corner connecting piece respectively abut against the ends of the two fourth inside corner vertical boards; the screw rod of the inside corner connecting piece passes through the inside corner installation notch and the through groove, and the end of the sleeve of the inside corner connecting piece is welded to the first vertical board of the third vertical keel.

[0018] Furthermore, an openable inside corner cover is arranged at the top of the inside corner partition board corresponding to the position of the worm of the inside corner connecting piece.

[0019] The beneficial effects of the present invention are as follows: The installation structure of the concealed connecting piece prefabricated partition board for the public toilet of the present invention has a simple structure and is convenient to install. The connecting piece can be hidden, improving the appearance effect and quality. Description of the Drawings

[0020] Figure 1 is a cross-sectional schematic view of the installation structure of the concealed connecting piece prefabricated partition board for the public toilet of the present invention.

[0021] Figure 1A is Figure 1 the enlarged schematic view at A in

[0022] Figure 2 is a longitudinal-sectional schematic view of the installation structure of the concealed connecting piece prefabricated partition board for the public toilet of the present invention.

[0023] Figure 2A is Figure 2 the enlarged schematic view at B in

[0024] Figure 3 It is the front view of the worm gear device of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention.

[0025] Figure 3A It is the side view of the worm gear device of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention.

[0026] Figure 3B It is the top view of the worm gear device of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention.

[0027] Figure 4 It is the side view of the worm gear connecting device of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention.

[0028] Figure 4A It is the front view of the worm gear connecting device of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention.

[0029] Figure 4B It is the top view of the worm gear connecting device of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention.

[0030] Figure 5 It is the cross-sectional schematic view at the internal angle partition board of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention.

[0031] Figure 6 It is the front elevation schematic view at the internal angle partition board of the installation structure of the concealed connecting piece prefabricated partition board in the public toilet of the present invention. Detailed implementation manners

[0032] The following will illustrate the structure of the present invention and the technical effects to be achieved with specific embodiments in conjunction with the drawings. However, the selected embodiments are only used for illustration and explanation, and are not intended to limit the scope of the present invention.

[0033] As Figure 1 、 Figure 2 shown, the present invention provides an installation structure of a concealed connecting piece prefabricated partition board for a public toilet, including a wall 1 and a partition board 2, which are fixedly connected through a connecting piece 3, and the partition board 2 is perpendicular to the wall 1.

[0034] An installation plate 11 is provided on the outer side of the wall 1, and the installation plate 11 is fixed on the wall 1 through expansion bolts 12. A wall panel 13 is further provided on the outer side of the wall 1, and a vertical installation notch 14 is provided on the wall panel 13 corresponding to the position of the partition board 2.

[0035] The partition board 2 includes a plurality of first vertical keels 21 (the cross-section can be rectangular), and on the side of the first vertical keel 21 close to the wall body 1, a second vertical keel 22 is fixedly arranged. The cross-section of the second vertical keel 22 is C-shaped, and includes a first vertical plate 221 fixedly connected to the first vertical keel 21 and second vertical plates 222 perpendicularly connected to both ends of the first vertical plate 221. At the end of each second vertical plate 222, a third vertical plate 223 perpendicular to the second vertical plate 222 extends inwards. The two third vertical plates 223 are respectively located on both sides of the installation notch 14 and are in contact with the wall panel 13. A decorative plate 23 is covered on the outer side of each first vertical keel 21, and one end of the decorative plate 23 facing the wall body 1 blocks the outer side of the second vertical plate 222.

[0036] As Figure 1A , Figure 2A , Figures 3 - 3B shown, the connector 3 includes a plurality of worm gear devices 31. The worm gear device 31 includes a cylindrical body 311. An annular worm gear plate 312 is sleeved in the middle of the body 311. The worm gear plate 312 is provided with tooth holes 313 evenly distributed along the circumferential direction of the worm gear plate 312. Specifically, the tooth holes 313 are long strip-shaped. Circular baffles 314 are provided at both ends of the body 311, and the diameter of the baffle 314 is larger than the outer diameter of the body 311, so that an annular groove 315 is formed between the baffle 314 and the worm gear plate 312. A round hole 316 is provided in the middle of the baffle 314, and a screw 32 passes through the two round holes 316. The baffle 314 close to the wall body 1 is the first baffle 314A, and the baffle 314 far from the wall body 1 is the second baffle 314B. A rectangular lock plate 33 is provided on the outer side of the first baffle 314A, and the middle of the lock plate 33 is sleeved on the screw 32. First nut 321, second nut 322 and third nut 323 are provided on the screw 32. The first nut 321 is located outside the lock plate 33, the second nut 322 is located inside the first baffle 314A, and the third nut 323 is located outside the second baffle 314B, so that the lock plate 33 can rotate synchronously with the body 311. A conical end 34 is provided at one end of the screw 32 facing the wall body 1, and the end 34 is located in a conical sleeve 35, so that the end 34 can rotate in the cylinder 35.

[0037] As Figure 1A , Figure 2A , Figures 4 - 4BAs shown, a worm connection device 36 is sleeved on the outer periphery of the body 311. The worm connection device 36 includes two collar rings 361, which are respectively located in two annular grooves 315 and can rotate in the annular grooves 315. For the convenience of installing the collar rings 361, each collar ring 361 includes two relatively arranged hoop clamps 3611. The cross-section of each hoop clamp 3611 is in an Ω shape, and the two ends are fixedly connected by bolts 3612. The sides of the two collar rings 361 are fixedly connected by a top connecting plate 362 with a C-shaped cross-section. The axes of the connecting plates 362 of the connecting member 3 are located on the same vertical line, and a vertical worm 37 is provided in each connecting plate 362. The thread of the worm 37 meshes with the tooth holes 313 of each worm wheel plate 312. When the worm 37 rotates, it drives each worm wheel plate 312 to rotate, and then drives each body 311 to rotate. At the same time, the lock plate 33 rotates synchronously. The top of the worm 37 is provided with an adjusting end 371. The adjusting end 371 is located at the top of the uppermost connecting plate 362, and an adjusting groove 372 is provided on the top surface of the adjusting end 371. The adjusting groove 372 is in a straight shape or a cross shape. Preferably, a seal cover 24 that can be opened is provided at the position of the partition 2 corresponding to the worm 37 at the top, and the worm 37 can be rotated from the top of the partition 2 by tools such as a screwdriver. A limit nut 373 is provided at the bottom end of the worm 37. The limit nut 373 is located at the bottom of the lowermost connecting plate 362 to prevent the worm 37 from moving upward.

[0038] As Figures 1 - 2A shown, the worm wheel device 31 is located in the second vertical keel 22. The length of the lock plate 33 is greater than the distance between the two third vertical plates 223 and less than the distance between the two second vertical plates 222. The two ends of the lock plate 33 are respectively abutted against the two third vertical plates 223. The screw 32 passes through the installation notch 14, and the end of the sleeve 35 is welded to the installation plate 11.

[0039] When installing the partition 2 of the present invention, first, the sleeve 35 of the connecting member 3 is welded to the installation plate 11 of the wall body 1, and then the partition 2 is abutted against both sides of the installation notch 14 of the wall panel 13 of the wall body 1. At the same time, the worm wheel device 31 and the worm connection device 36 of the connecting member 3 enter the second vertical keel 22 from the notch between the two third vertical plates 223 of the second vertical keel 22 of the partition 2. At this time, each lock plate 33 is vertical. After the partition 2 is in place, the worm 37 is rotated from the top of the partition 2 by tools such as a screwdriver, so that the lock plate 33 rotates 90 degrees, and the lock plate 33 becomes horizontal and abuts against the inner sides of the two third vertical plates 223 of the second vertical keel 22, locking the second vertical keel 22 and completing the installation of the partition 2. The connecting member 3 of the present invention is hidden inside the partition 2, and the installation is convenient, greatly improving the appearance effect and quality.

[0040] As Figure 5 、 Figure 6As shown in the figure, the present invention also provides a partition installation structure with a T-shaped cross-section, that is, the concealed connector assembly partition installation structure of the public toilet of the present invention further includes a corner partition 4, and one end of the partition 2 away from the wall 1 is vertically connected to the middle of the corner partition 4.

[0041] The corner partition 4 includes a plurality of first corner vertical keels 41 (the cross-section can be rectangular), a second corner vertical keel 42 is provided in the middle of the corner partition 4, and a corner decorative plate 43 is covered outside the first corner vertical keel 41. The second corner vertical keel 42 includes a first corner vertical plate 421 and second corner vertical plates 422 vertically connected to both ends of the first corner vertical plate 421. At the end of each second corner vertical plate 422, a third corner vertical plate 423 perpendicular to the second corner vertical plate 422 extends inward, and at the end of each third corner vertical plate 423, a fourth corner vertical plate 424 perpendicular to the third corner vertical plate 423 extends inward. An angle installation notch 44 is formed between the two fourth corner vertical plates 424, and a vertical through groove 45 is provided at the position of the corner decorative plate 43 corresponding to the angle installation notch 44.

[0042] A third vertical keel 25 is fixedly provided outside the first vertical keel 21 of the partition 2 close to the corner partition 4. The third vertical keel 25 has the same structure as the second vertical keel 22, and also includes a first vertical plate 221, a second vertical plate 222, and a third vertical plate 223. The two third vertical plates 223 of the third vertical keel 25 are respectively located on both sides of the angle installation notch 44 and are in contact with both sides of the corner decorative plate 43.

[0043] The partition 2 and the corner partition 4 are fixedly connected by a corner connector 5. The structure of the corner connector 5 is the same as that of the connector 3, and also includes the worm gear device 31, the worm connection device 36 and the connected worm 37. The worm gear device 31 of the corner connector 5 is located inside the second corner vertical keel 42. The length of the lock plate 33 of the corner connector 5 is greater than the distance between the two fourth corner vertical plates 424 and less than the distance between the two second corner vertical plates 422. The width of the lock plate 33 of the corner connector 5 is less than the distance between the two fourth corner vertical plates 424. The two ends of the lock plate 33 of the corner connector 5 are respectively in contact with the ends of the two fourth corner vertical plates 424. The screw 32 of the corner connector 5 passes through the angle installation notch 44 and the through groove 45, and the end of the sleeve 35 of the corner connector 5 is welded to the first vertical plate 221 of the third vertical keel 25. Similarly, a switchable corner cover is provided at the position of the corner partition 4 corresponding to the worm 37 of the corner connector 5 at the top, so as to perform a rotation operation on the worm 37 of the corner connector 5 corresponding to the top of the corner partition.

[0044] When installing the internal corner partition board 4 of the present invention, first, the sleeve 35 of the internal corner connecting piece 5 is welded to the third vertical keel 25 of the partition board 2. Then, the partition board 2 is abutted against the internal corner installation notch 44 of the internal corner partition board 4. At the same time, the worm gear device 32 and the worm connecting device 36 of the internal corner connecting piece 5 enter the second internal corner vertical keel 42 through the notch between the two fourth internal corner vertical plates 424 of the second internal corner vertical keel 42 of the internal corner partition board 4. At this time, the locking plates 33 of each internal corner connecting piece 5 are vertical. After the internal corner partition board 4 is in place, the worm 37 of the internal corner connecting piece 5 is rotated through tools such as a screwdriver from the top of the internal corner partition board 4, so that the locking plate 33 of the internal corner connecting piece 5 rotates 90 degrees, and the locking plate 33 of the internal corner connecting piece 5 is horizontal and abuts against the inner sides of the two fourth internal corner vertical plates 424 of the second internal corner vertical keel 42, locking the second internal corner vertical keel 42 and completing the installation of the internal corner partition board 4.

[0045] The installation structure of the concealed connecting piece prefabricated partition board for the public toilet of the present invention has a simple structure, is convenient to install, can hide the connecting piece, and improves the appearance effect and quality.

[0046] The present invention is defined by the claims described above. However, based on this, various obvious changes or modifications can be made by those of ordinary skill in the art, and all should be within the main spirit and protection scope of the present invention.

Claims

1. An installation structure of a prefabricated partition board with concealed connectors for public toilets, characterized in that It includes a wall body and a partition board, which are fixedly connected by a connecting piece, and the partition board is perpendicular to the wall body; An installation plate is provided on the outer side of the wall body, and the installation plate is fixed on the wall body by expansion bolts; a wall board is also provided on the outer side of the wall body, and a vertical installation notch is provided at the position corresponding to the partition board on the wall board; The partition board includes a plurality of first vertical keels, and a second vertical keel is fixedly provided on the side of the first vertical keel close to the wall body facing the wall body. The cross-section of the second vertical keel is C-shaped, including a first vertical plate fixedly connected to the first vertical keel and second vertical plates vertically connected to both ends of the first vertical plate. Third vertical plates perpendicular to the second vertical plates extend inward at the ends of each second vertical plate, and the two third vertical plates are respectively located on both sides of the installation notch and abut against the wall board; a decorative board is covered on the outer side of each first vertical keel, and one end of the decorative board facing the wall body blocks the outer side of the second vertical plate; The connecting piece includes a plurality of worm gear devices. The worm gear device includes a cylindrical body, and an annular worm gear plate is sleeved in the middle of the body. The worm gear plate is provided with tooth holes evenly distributed along the circumferential direction of the worm gear plate; circular baffles are provided at both ends of the body, and the diameter of the baffle is larger than the outer diameter of the body, so that an annular groove is formed between the baffle and the worm gear plate; a circular hole is provided in the middle of the baffle, and a screw rod passes through the two circular holes. The baffle close to the wall body is the first baffle, and the baffle far from the wall body is the second baffle; a rectangular lock plate is provided on the outer side of the first baffle, and the middle of the lock plate is sleeved on the screw rod; a first nut, a second nut and a third nut are provided on the screw rod. The first nut is located outside the lock plate, the second nut is located inside the first baffle, and the third nut is located outside the second baffle, so that the lock plate can rotate synchronously with the body; a conical end is provided at one end of the screw rod facing the wall body, and the end is located in a conical sleeve, so that the end can rotate in the sleeve; a worm connecting device is sleeved on the outer periphery of the body. The worm connecting device includes two collar rings, which are respectively located in the two annular grooves and can rotate in the annular grooves. The sides of the two collar rings are fixedly connected by a top connecting plate with a C-shaped cross-section. The axes of the connecting plates of the connecting piece are on the same vertical line, and a vertical worm is provided in each connecting plate. The thread of the worm meshes with the tooth holes of each worm gear plate; an adjusting end is provided at the top of the worm, and the adjusting end is located at the top of the uppermost connecting plate, and an adjusting groove is provided on the top surface of the adjusting end; a limit nut is provided at the bottom of the worm, and the limit nut is located at the bottom of the lowermost connecting plate; The worm gear device is located in the second vertical keel. The length of the lock plate is greater than the distance between the two third vertical plates and less than the distance between the two second vertical plates. The width of the lock plate is less than the distance between the two third vertical plates. Both ends of the lock plate abut against the two third vertical plates respectively; the screw rod passes through the installation notch, and the end of the sleeve is welded to the installation plate.

2. The installation structure of a prefabricated partition board with concealed connectors for public toilets according to claim 1, characterized in that: The collar ring includes two oppositely arranged hoop members, and the cross-section of each hoop member is Ω-shaped, and the two ends are fixedly connected by bolts.

3. The installation structure of a prefabricated partition board with concealed connectors for public toilets according to claim 1, characterized in that: The tooth holes are strip-shaped.

4. The installation structure of a prefabricated partition board with concealed connectors for public toilets according to claim 1, characterized in that: The adjusting groove is linear or cross-shaped.

5. The installation structure of a prefabricated partition board with concealed connectors for public toilets according to claim 1, characterized in that: A cover that can be opened is provided at the top of the partition board corresponding to the position of the worm.

6. The installation structure of a prefabricated partition board with concealed connectors for public toilets according to any one of claims 1 to 5, characterized in that: It further includes an internal corner partition board, and one end of the partition board away from the wall body is vertically connected to the middle of the internal corner partition board; The internal corner partition board includes a plurality of first internal corner vertical keels, and the outer sides of the first internal corner vertical keels are covered with internal corner decorative plates; a second internal corner vertical keel is provided in the middle of the internal corner partition board. The second internal corner vertical keel includes a first internal corner vertical plate and second internal corner vertical plates vertically connected to both ends of the first internal corner vertical plate. At the end of each second internal corner vertical plate, a third internal corner vertical plate perpendicular to the second internal corner vertical plate extends inwards. At the end of each third internal corner vertical plate, a fourth internal corner vertical plate perpendicular to the third internal corner vertical plate extends inwards. An internal corner installation notch is formed between the two fourth internal corner vertical plates; a vertical through groove is provided at the position of the internal corner decorative plate corresponding to the internal corner installation notch; A third vertical keel is fixedly provided on the outer side of the first vertical keel of the partition board close to the internal corner partition board, and the third vertical keel has the same structure as the second vertical keel; the two third vertical plates of the third vertical keel are respectively located on both sides of the internal corner installation notch and are in contact with the internal corner decorative plate; The partition board and the internal corner partition board are fixedly connected through an internal corner connecting piece, and the structure of the internal corner connecting piece is the same as that of the connecting piece; the worm gear device of the internal corner connecting piece is located in the second internal corner vertical keel. The length of the lock plate of the internal corner connecting piece is greater than the distance between the two fourth internal corner vertical plates and less than the distance between the two second internal corner vertical plates. The width of the lock plate of the internal corner connecting piece is less than the distance between the two fourth internal corner vertical plates. The two ends of the lock plate of the internal corner connecting piece are respectively in contact with the ends of the two fourth internal corner vertical plates; the screw of the internal corner connecting piece passes through the internal corner installation notch and the through groove, and the end of the sleeve of the internal corner connecting piece is welded to the first vertical plate of the third vertical keel.

7. The installation structure of a prefabricated partition board with concealed connectors for public toilets according to claim 6, characterized in that: An openable internal corner cover is provided at the top of the internal corner partition board corresponding to the position of the worm of the internal corner connecting piece.

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