EP4094654A1

EP4094654A1 - Hinged structure for toilet cover plate

Info

Publication number: EP4094654A1
Application number: EP22164503.9A
Authority: EP
Inventors: Wenhui Zhou; Haojia HUANG; Hai Zhang; Weinan LIANG; Jiafu MA
Original assignee: Zhongshan Meitu Plastic Industry Co Ltd
Current assignee: Zhongshan Meitu Plastic Industry Co Ltd
Priority date: 2021-05-26
Filing date: 2022-03-25
Publication date: 2022-11-30
Anticipated expiration: 2042-03-25
Also published as: EP4094654C0; ES2952324T3; CN215457583U; EP4094654B1

Abstract

The present disclosure discloses a hinged structure for a toilet cover plate, which includes a fixed seat and a cover plate, the cover plate is provided with a mounting hole, the mounting hole is provided with a seat hinge assembly, the seat hinge assembly includes an oil core sleeve fixedly arranged in the mounting hole, and the seat hinge assembly also includes a hinge shaft, the hinge shaft includes an oil core part rotatably arranged in the oil core sleeve and a seat hinge part inserted and matched with the connection column on the fixed seat. The oil core part is formed integrally with the seat hinge part, and the opening of the mounting hole is provided with an inward protruding annular flange. When the seat hinge assembly is installed in the mounting hole, the seat hinge assembly abuts with the annular flange through a rhombus elastic buckle, so as to fix the seat hinge assembly axially, the seat hinge part and the oil core part provided by the present disclosure are integrally formed, which can effectively reduce the coaxiality error of the seat hinge assembly, so as to reduce the mechanical fatigue of the damper parts and prolong the service life, while the disassembly and assembly of the seat hinge assembly can be quickly completed through the rhombus elastic buckle, so as to realize the rotating installation between the cover plate and the fixed seat.

Description

TECHNICAL FIELD

The present disclosure relates to the technical field of toilet, in particular to a hinged structure structure for toilet cover plate.

BACKGROUND

At present, the hinge shaft assembly used for the hinge between the cover plate and the toilet on the market includes an oil core which is inserted and matched with the seat hinge and the seat hinge. In the prior art, the oil core and the seat hinge are separated. For example, the Chinese patent discloses (Publication No.: CN201767898U ) a hinge structure of the toilet cover plate, and the specification specifically discloses the following contents: Referring FIG. 1-FIG. 9, the hinge structure of the toilet cover plate includes a cover plate connected with the toilet through a hinge. The hinge includes a hinge body (equivalent to a seat hinge) and a mounting seat respectively connected with the cover plate and the toilet. The top surface of the mounting seat is provided with a connection column, which is inserted and connected with the hinge body. The cover plate includes a bottom ring and a face cover. The left and right sides of the rear edge of the bottom ring are connected with hinges through springs, and the rear end of the hinge is provided with a damper (equivalent to oil core) connection groove, which is connected with the face cover through the damper. This kind of split structure mainly has the following defects:

1. The seat hinge and oil core are separated, so that their connection will lead to large coaxiality error of hinge shaft assembly;
2. The hinge shaft assembly also includes a return spring, which not only increases the production cost of the product, but also increases the assembly difficulty of the hinge shaft assembly.

In addition, when the traditional damper is installed to the seat ring, it also needs to add some parts to cooperate with them, such as gland, nut, anti-skid washer, decorative ring, snap ring and other parts, but this part will lengthen the overall appearance size of the hinge shaft, resulting in poor swing stability of the cover plate.

SUMMARY

In order to solve the above problems, the invention provides a hinged structure for a toilet cover plate.
In order to achieve the above purpose, the invention provides the following technical solution:
A hinged structure for a toilet cover plate, including a fixed seat fixedly arranged on the toilet and a cover plate rotatably arranged on the fixed seat, a seat hinge assembly for hinging the fixed seat with the cover plate is installed in the mounting hole, the seat hinge assembly includes an oil core sleeve fixedly arranged in the mounting hole, and the seat hinge assembly includes a hinge shaft, wherein the hinge shaft includes an oil core part rotatably arranged in the oil core sleeve and a seat hinge part inserted and matched with the connection column on the fixed seat, the oil core part is integrally formed with the seat hinge part, and the opening of the mounting hole is provided with an inward protruding annular flange; when the seat hinge assembly is installed in the mounting hole, the seat hinge assembly abuts against the annular flange through a rhombus elastic buckle, so that the seat hinge assembly is fixed axially.
As a further improvement, a sealing cavity for containing damping oil is formed between the oil core part and the oil core sleeve, and an inner wall of the oil core sleeve is provided with a spacer block protruding radially inward, the spacer block separates the sealing cavity into a first cavity and a second cavity; and a shaft hole matched with the oil core part is arranged through a middle of the spacer block, and the oil core part is fixedly connected with the limit column by ultrasonic welding after passing through the shaft hole.
As a further improvement, the inner wall of the oil core sleeve is relatively provided with a gear block located in the first cavity and extending along an axis direction of the oil core sleeve, and the peripheral surface of the oil core part is relatively provided with ribs extending along an axis direction of the oil core part; the gear block is staggered with the rib when assembly, so that the cover plate drives the gear block of the oil core sleeve against the rib of the oil core part during rotation.
As a further improvement, a blade is nested on the rib, and the rib on the oil core part is in contact with an inner wall of the first cavity through the blade.
As a further improvement, the seat hinge assembly includes an adjusting nut, an inner wall of the second cavity is provided with an internal thread matched with the adjusting nut; the adjusting nut includes an insertion part and a threaded part, the insertion part is provided with an avoidance slot, and an outer circumference of the threaded part is provided with an external thread; when the threaded part is connected with the internal thread on the second cavity through the external thread, the avoidance slot is sleeved on the periphery of the gear block.
As a further improvement, the peripheral surface of the seat hinge part is provided with an accommodation hole for an insertion of the connection column, the connection column is inserted in the accommodation hole and connected through a buckle mechanism, and the buckle mechanism includes a buckle, the buckle is provided with an annular insertion block, the end face of the seat hinge part is provided with a first accommodation slot communicated with the accommodation hole and configured for an insertion of the annular insertion block; the buckle is inserted into the first accommodation slot through the annular insertion block, an insertion end of the annular insertion block is provided with a first notch; an inner side of the ring of the annular insertion block close to the first notch is provided with an inward protruding raised rib; an peripheral surface of the connection column is recessed to form a clamping slot for clamping the raised rib, and one end of the connection column is inserted into the annular insertion block through the accommodation hole and clamped with the raised rib through the clamping slot.
As a further improvement, strip-shaped insertion blocks are symmetrically arranged on the buckle, a second accommodation slot for a corresponding insertion of the strip-shaped insertion block is arranged on an end face of the seat hinge part; a first clamp hook is arranged at the insertion end of the strip-shaped insertion block, a second clamp hook is arranged in the second accommodation slot, and the strip-shaped insertion block is engaged with the second clamp hook in the second accommodation slot through the first clamp hook.
As a further improvement, the peripheral surface of the seat hinge part is provided with a third accommodation slot, and the third accommodation slot is configured to accommodate the rhombus elastic buckle. The rhombus elastic buckle includes a seat part, an elastic part and an guide part, one side of the seat part is fixedly connected with the elastic part, and the other side of the seat part is fixedly connected with the guide part; during assembly, the guide part of the rhombus elastic buckle is guided into the mounting hole from outside to inside along an axis direction of the mounting hole, so that the guide part abuts against the annular flange in the axis direction of the mounting hole.
As a further improvement, the rhombus elastic buckle includes a disassembly part fixedly arranged on the side of the seat part, the outer circumference of the seat hinge part is fixedly sleeved with a sleeve, and a peripheral surface of the sleeve is provided with a through hole for the connection column to pass; and the disassembly part abuts against an inner wall of the sleeve close to the through hole under an elastic action of the elastic part after assembly.
As a further improvement, the elastic part is divided into a first elastic part and a second elastic part, the first elastic part and the second elastic part bend towards each other to form a rhombus shape, and the first elastic part and the second elastic part are separated from each other, so that the elastic part forms a second notch.
The advantageous effects of the present disclosure are:

1. The seat hinge part and the oil core part provided by the present disclosure are integrally formed, which can effectively reduce the coaxiality error of the seat hinge assembly, so as to reduce the mechanical fatigue of the damper parts and prolong the service life, and the disassembly and assembly of the seat hinge assembly can be quickly completed through the rhombus elastic buckle, so as to realize the rotating installation between the cover plate and the fixed seat.
2. When inserting, the annular insertion block of the buckle is inserted into the first accommodation slot, and the connection column is clamped into the annular opening of the annular insertion block through the first notch, so that the raised rib is clamped into the clamping slot to play a clamping role. During disassembly, the buckle position of the buckle must be held outward and deformed to a certain extent, such that the connection column can be pulled out. In addition, the upper and lower ends of the raised rib have a certain inclination, so that the connection column can be inserted or pulled out, which can also improve the difficulty of deformation, so as to realize the repeated forced insertion and pulling out of the connection column and maintain the buckle position stability at the same time. What's more, there is no required of the spring assembly, which effectively improves the assembly efficiency of the assembly.
3. After the elastic part of the rhombus elastic buckle is compressed, the disassembly part abuts against the inner wall of the sleeve. The sleeve mainly plays a limiting role to prevent the rhombus elastic buckle from falling out. The user can fix the hinge shaft without adding snap nails, decorative rings, snap rings and other parts. When the connection column is not inserted, the user can press down the disassembly part through the through hole, so that the guide part is separated from the contact with the annular flange. At this time, the rhombus elastic buckle is separated from the axial positioning, so that the whole seat hinge assembly can be disassembled. The rhombus elastic buckle makes the installation and disassembly of the damper more convenient.

DETAILED DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of the present disclosure.
FIG. 2 is an exploded view of the present disclosure.
FIG. 3 is the first exploded view of the seat hinge assembly.
FIG. 4 is the second exploded view of the seat hinge assembly.
FIG. 5 is a top view of the present disclosure.
FIG. 6 is a cross-sectional view at A-A of FIG. 5.
FIG. 7 is a front view of the seat hinge assembly.
FIG. 8 is an exploded view at B-B of FIG. 7.
FIG. 9 is a side view of the seat hinge assembly.
FIG. 10 is a cross-sectional view at C-C of FIG. 9.
FIG. 11 is a cross-sectional view at D-D of FIG. 9.
FIG. 12 is a structural diagram of the buckle.
FIG. 13 is a structural diagram of a rhombus elastic buckle.
FIG. 14 is a structural diagram of the oil core sleeve.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure will be further described in detail below in combination with the accompanying drawings and specific embodiments:
As shown in FIGS. 1 to 6, a hinged structure for a toilet cover plate includes a fixed seat 1 fixedly arranged on the toilet and a cover plate 2 rotatably arranged on the fixed seat 1. The cover plate 2 is provided with a mounting hole 21, and a seat hinge assembly 3 for hinged the fixed seat 1 with the cover plate 2 is installed in the mounting hole 21, wherein the seat hinge assembly 3 includes an oil core sleeve 33 fixedly arranged in the mounting hole 21. The seat hinge assembly 3 also includes a hinge shaft 30, and the hinge shaft 30 includes an oil core part 32 rotatably arranged in the oil core sleeve 33 and a seat hinge part 31 inserted and matched with the connection column on the fixed seat 1, and the oil core part 32 is integrally formed with the seat hinge part 31. The opening of the mounting hole 21 is provided with an inward protruding annular flange 211. When the seat hinge assembly 3 is installed in the mounting hole 21, the seat hinge assembly 3 abuts against the annular flange 211 through a rhombus elastic buckle 7, so that the seat hinge assembly 3 is fixed axially. The seat hinge part 31 and the oil core part 32 provided by the present disclosure are integrally formed, which can reduce the coaxiality error of the seat hinge assembly, so as to reduce the mechanical fatigue of the damper parts and prolong the service life. Through the rhombus elastic buckle 7, the disassembly and assembly of the seat hinge assembly 3 can be quickly completed, so as to realize the rotating installation between the cover plate 2 and the fixed seat 1.
As shown in FIG. 5, FIG. 6 and FIG. 14, a sealing cavity 34 for containing damping oil is formed between the oil core part 32 and the oil core sleeve 33. The inner wall of the oil core sleeve 33 is provided with a spacer block 330 protruding radially inward. The spacer block 330 separates the sealing cavity 34 into a first cavity 341 and a second cavity 342, and a shaft hole 331 matched with the oil core part 32 is arranged through the middle of the spacer block 330, and the oil core part 32 is fixedly connected with the limit column 5 by ultrasonic welding after passing through the shaft hole 331. Preferably, the oil core part 32 is fixed with the limit column 5 by ultrasonic welding after passing through the shaft hole 331, which has high speed, high efficiency and low cost. At the same time, it eliminates the use of a large number of fixtures, adhesives or mechanical fasteners.
As shown in FIG. 3, FIG. 4, FIG. 7 and FIG. 8, the inner wall of the oil core sleeve 33 is relatively provided with a gear block 332 located in the first cavity 341 and extending along the axis direction of the oil core sleeve 33, and the peripheral surface of the oil core part 32 is relatively provided with a rib 321 extending along the axis direction of the oil core part 32. During assembly, the gear block 332 is staggered with the rib 321, so that the cover plate 2 can drive the gear block 332 of the oil core sleeve 33 to abut against the rib 321 of the oil core part 32 during rotation. The rib 321 is nested with a blade 322, and the rib 321 on the oil core part 32 contacts the inner wall of the first cavity 341 through the blade 322. Further, the inner wall of the oil core sleeve 33 is closely fitted with the outer peripheral surface of the rib 321, and a rotation gap is reserved between the blade 322 and the rib 321 to facilitate the flow of damping oil in the gap.
As shown in FIG. 3, FIG. 4, FIG. 9, FIG. 10 and FIG. 11, the seat hinge assembly 3 also includes an adjusting nut 6. The inner wall of the second cavity 342 is provided with an internal thread matched with the adjusting nut 6. The adjusting nut 6 includes an insertion part 61 and a threaded part 62, the insertion part 61 is provided with an avoidance slot 611, and the outer circumference of the threaded part 62 is provided with an external thread. When the threaded part 62 is connected with the internal thread on the second cavity 342 through the external thread, the avoidance slot 611 is sleeved on the periphery of the gear block 332. The adjusting nut 6 can adjust the flow rate of the damping oil, so as to realize the fine adjustment of the damper. The outer circumference of the connection between the seat hinge part 31 and the oil core part 32 and the outer circumference of the insertion part 61 of the adjusting nut 6 are sleeved with a sealing ring respectively, which is conducive to enhancing the tightness of the sealing cavity 34. During assembly, the avoidance slot 611 is sleeved on the periphery of the gear block 332, which can shorten the size of the hinged shaft as much as possible and further increase the swing stability of the cover plate 2.
As shown in FIG. 9, FIG. 10, FIG. 11 and FIG. 12, the peripheral surface of the seat hinge 31 is provided with an accommodation hole 311 for the insertion of the connection column 11. After the connection column 11 is inserted into the accommodation hole 311 and is connected through a buckle mechanism 4. The buckle mechanism 4 includes a buckle 41, and an annular insertion block 411 is arranged on the buckle 41. The end face of the seat hinge 31 is provided with a first accommodation slot 313 communicated with the accommodation hole 311 and the first accommodation slot 313 is configured for the insertion of the annular insertion block 411. The buckle 41 is inserted into the first accommodation slot 313 through the annular insertion block 411, and the insertion end of the annular insertion block 411 is provided with a first notch 412. The annular insertion block 411 is provided with an inward protruding raised rib 413 near the inner side of the ring of the first notch 412. The peripheral surface of the connection column 11 is recessed to form a clamping slot 111 for the raised rib 413, and one end of the connection column 11 is inserted into the annular insertion block 411 through the accommodation hole 311 and clamped with the raised rib 413 through the clamping slot 111. When inserting, the annular insertion block 411 of the buckle 41 is inserted into the first accommodation slot 313, and the connection column 11 passes through the through hole 81 and the accommodation hole 311 in sequence and then is clamped into the annular opening of the annular insertion block 411, so that the raised rib 413 is clamped into the clamping slot 111 to play a clamping role. The annular opening is communicated with the first notch 412 to facilitate to hole the buckle position of the annular insertion block 411 open when the connection column 11 is installed. During disassembly, the buckle position of the buckle 41 must be held outward and deformed to a certain extent, such that the connection column 11 can be pulled out. In addition, the upper and lower ends of the raised rib 413 have a certain inclination, so that the connection column 11 can be inserted or pulled out, which can also improve the difficulty of deformation, so as to realize the repeated forced insertion and pulling out of the connection column, and still maintain the stability of buckle position. At the same time, the spring assembly is omitted, which effectively improves the assembly efficiency of the assembly.
As shown in FIG. 9, FIG. 10, FIG. 11 and FIG. 12, strip-shaped insertion blocks 42 are symmetrically arranged on the buckle 41, a second accommodation slot 314 for the corresponding insertion of the strip-shaped insertion block 42 is arranged on the end face of the seat hinge part 31. A first clamp hook 421 is arranged at the insertion end of the strip-shaped insertion block 42, a second clamp hook 315 is arranged in the second accommodation slot 314, and the strip-shaped insertion block 42 is engaged with the second clamp hook 315 in the second accommodation slot 314 through the first clamp hook 421. It is snapped by buckles, which is convenient for assembly and fixation.
As shown in FIG. 5, FIG. 6 and FIG. 13, the peripheral surface of the seat hinge part 31 is provided with a third accommodation slot 316, which is used to accommodate the rhombus elastic buckle 7. The rhombus elastic buckle 7 includes a seat part 71, an elastic part 72 and a guide part 73. One side of the seat part 71 is fixedly connected with the elastic part 72, and the other side of the seat part 71 is fixedly connected with the guide part 73. During assembly, the guide part 73 of the rhombus elastic buckle 7 is guided into the mounting hole 21 from outside to inside along the axis direction of the mounting hole 21, so that the guide part 73 can be against the annular flange 211 in the axis direction of the mounting hole 21. The front face of the guide part 73 is an inclined surface, which facilitates the snap of the guide part 73 into the mounting hole 21, and the rear face of the guide part 73 is used to abut against the annular flange 211, thereby limiting the axial movement direction of the whole seat hinge assembly 3. In addition, the length of the seat portion 71 is equivalent to the radial width of the third accommodation slot 316 to limit the left and right shaking of the rhombus elastic buckle 7 and facilitate the smooth up and down compression of the rhombus elastic buckle 7.
As shown in FIG. 6 and FIG. 13, the rhombus elastic buckle 7 also includes a disassembly part 74 fixedly arranged on the side of the seat part 71. The outer circumference of the seat hinge part 31 is fixedly sleeved with a sleeve 8, and the peripheral surface of the sleeve 8 is provided with a through hole 81 for the connection column 11 to pass through. After assembly, the disassembly part 74 is against the inner wall of the sleeve 8 close to the through hole 81 under the elastic action of the elastic part 72. After the elastic part 72 of the rhombus elastic buckle 7 is compressed, the disassembly part 74 abuts against the inner wall of the sleeve 8. The sleeve 8 mainly plays a limiting role to prevent the rhombus elastic buckle 7 from falling out. The user can fix the hinge shaft 30 without adding snap nails, decorative rings, snap rings and other parts. When the connection column 11 is not inserted, the user can press the disassembly part 74 through the through hole 81, so that the guide part 73 is separated from the annular flange 211. At this time, the rhombus elastic buckle 7 is separated from the axial fixation, so that the whole seat hinge assembly 3 can be disassembled. The rhombus elastic buckle 7 makes the installation and disassembly of the damper more convenient.
As shown in FIG. 13, the elastic part 72 is divided into a first elastic part 721 and a second elastic part 722. The first elastic part 721 and the second elastic part 722 bend towards each other to form a rhombus shape. The first elastic part 721 and the second elastic part 722 are separated from each other, so that the elastic part 72 forms a second notch 723, which facilitates the insertion and elastic deformation of the rhombus elastic buckle 7.

Claims

A hinged structure for a toilet cover plate, comprising a fixed seat (1) fixedly arranged on the toilet and a cover plate (2) rotatably arranged on the fixed seat (1), a mounting hole (21) is arranged on the cover plate (2), a seat hinge assembly (3) for hinging the fixed seat (1) with the cover plate (2) is installed in the mounting hole (21), the seat hinge assembly (3) comprises an oil core sleeve (33) fixedly arranged in the mounting hole (21), and the seat hinge assembly (3) comprises a hinge shaft (30), characterized in that the hinge shaft (30) comprises an oil core part (32) rotatably arranged in the oil core sleeve (33) and a seat hinge part (31) inserted and matched with the connection column on the fixed seat (1), the oil core part (32) is integrally formed with the seat hinge part (31), and the opening of the mounting hole (21) is provided with an inward protruding annular flange (211); when the seat hinge assembly (3) is installed in the mounting hole (21), the seat hinge assembly (3) abuts against the annular flange (211) through a rhombus elastic buckle (7), so that the seat hinge assembly (3) is fixed axially; the rhombus elastic buckle (7) comprises a seat part (71), an elastic part (72) and an guide part (73), one side of the seat part (71) is fixedly connected with the elastic part (72), and the other side of the seat part (71) is fixedly connected with the guide part (73); during assembly, the guide part (73) of the rhombus elastic buckle (7) is guided into the mounting hole (21) from outside to inside along an axis direction of the mounting hole (21), so that the guide part (73) abuts against the annular flange (211) in the axis direction of the mounting hole (21).
The hinged structure for the toilet cover plate according to claim 1, characterized in that a sealing cavity (34) for containing damping oil is formed between the oil core part (32) and the oil core sleeve (33), and an inner wall of the oil core sleeve (33) is provided with a spacer block (330) protruding radially inward, the spacer block (330) separates the sealing cavity (34) into a first cavity (341) and a second cavity (342); and a shaft hole (331) matched with the oil core part (32) is arranged through a middle of the spacer block (330), and the oil core part (32) is fixedly connected with the limit column (5) by ultrasonic welding after passing through the shaft hole (331).
The hinged structure for the toilet cover plate according to claim 2, characterized in that the inner wall of the oil core sleeve (33) is relatively provided with a gear block (332) located in the first cavity (341) and extending along an axis direction of the oil core sleeve (33), and the peripheral surface of the oil core part (32) is relatively provided with ribs (321) extending along an axis direction of the oil core part (32); the gear block (332) is staggered with the rib (321) when assembly, so that the cover plate (2) drives the gear block (332) of the oil core sleeve (33) against the rib (321) of the oil core part (32) during rotation.
The hinged structure for the toilet cover plate according to claim 3, characterized in that a blade (322) is nested on the rib (321), and the rib (321) on the oil core part (32) is in contact with an inner wall of the first cavity (341) through the blade (322).
The hinge structure for the toilet cover plate according to claim 3, characterized in that the seat hinge assembly (3) comprises an adjusting nut (6), an inner wall of the second cavity (342) is provided with an internal thread matched with the adjusting nut (6); the adjusting nut (6) comprises an insertion part (61) and a threaded part (62), the insertion part (61) is provided with an avoidance slot (611), and an outer circumference of the threaded part (62) is provided with an external thread; when the threaded part (62) is connected with the internal thread on the second cavity (342) through the external thread, the avoidance slot (611) is sleeved on the periphery of the gear block (332).
The hinged structure for the toilet cover plate according to claim 1, characterized in that the peripheral surface of the seat hinge part (31) is provided with an accommodation hole (311) for an insertion of the connection column (11), the connection column (11) is inserted in the accommodation hole (311) and connected through a buckle mechanism (4), and the buckle mechanism (4) comprises a buckle (41), the buckle (41) is provided with an annular insertion block (411), the end face of the seat hinge part (31) is provided with a first accommodation slot (313) communicated with the accommodation hole (311) and configured for an insertion of the annular insertion block (411); the buckle (41) is inserted into the first accommodation slot (313) through the annular insertion block (411), an insertion end of the annular insertion block (411) is provided with a first notch (412); an inner side of the ring of the annular insertion block (411) close to the first notch (412) is provided with an inward protruding raised rib (413); an peripheral surface of the connection column (11) is recessed to form a clamping slot (111) for clamping the raised rib (413), and one end of the connection column (11) is inserted into the annular insertion block (411) through the accommodation hole (311) and clamped with the raised rib (413) through the clamping slot (111).
The hinged structure for the toilet cover plate according to claim 6, characterized in that strip-shaped insertion blocks (42) are symmetrically arranged on the buckle (41), a second accommodation slot (314) for a corresponding insertion of the strip-shaped insertion block (42) is arranged on an end face of the seat hinge part (31); a first clamp hook (421) is arranged at the insertion end of the strip-shaped insertion block (42), a second clamp hook (315) is arranged in the second accommodation slot (314), and the strip-shaped insertion block (42) is engaged with the second clamp hook (315) in the second accommodation slot (314) through the first clamp hook (421).
The hinged structure for the toilet cover plate according to any one of claims 1 to 7, characterized in that the peripheral surface of the seat hinge part (31) is provided with a third accommodation slot (316), and the third accommodation slot (316) is configured to accommodate the rhombus elastic buckle (7).
The hinge structure for the toilet cover plate according to claim 8, characterized in that the rhombus elastic buckle (7) comprises a disassembly part (74) fixedly arranged on the side of the seat part (71), the outer circumference of the seat hinge part (31) is fixedly sleeved with a sleeve (8), and a peripheral surface of the sleeve (8) is provided with a through hole (81) for the connection column (11) to pass; and the disassembly part (74) abuts against an inner wall of the sleeve (8) close to the through hole (81) under an elastic action of the elastic part (72) after assembly.
The hinged structure for the toilet cover plate according to claim 9, characterized in that the elastic part (72) is divided into a first elastic part (721) and a second elastic part (722), the first elastic part (721) and the second elastic part (722) bend towards each other to form a rhombus shape, and the first elastic part (721) and the second elastic part (722) are separated from each other, so that the elastic part (72) forms a second notch (723).