Children closestool ladder hinge structure

Abstract

The utility model belongs to the technical field of furniture, and particularly relates to a child toilet ladder hinge structure which comprises a first hinge piece and a second hinge piece, the first hinge piece and the second hinge piece are rotationally connected through a fastener, a hinge hole is formed in the first hinge piece, a positioning hole is formed in the second hinge piece, and the hinge hole is matched with the positioning hole. The fastener comprises a connecting rod and an end cap which are detachably connected, the connecting rod is provided with a hinge part matched with the hinge hole, the hinge part is matched with the hinge hole to enable the first hinge piece to rotate relative to the connecting rod, and the side, close to the end cap, of the hinge part is provided with a positioning part matched with the positioning hole. The positioning portion is matched with the positioning hole to limit relative rotation of the second hinge piece and the connecting rod, the end cap is matched with the connecting rod to prevent the first hinge piece and the second hinge piece from being separated from the connecting rod, and the hinge structure of the closestool ladder for children is convenient to use and high in safety.

Description

TECHNICAL FIELD

[0001] The utility model belongs to furniture technical field, and particularly relates to a child toilet stool ladder hinging structure. BACKGROUND

[0002] Chair and stool are commonly used in daily life, in order to facilitate storage and transportation, many chairs and stools on the market can be folded.

[0003] Hinging structure is a common structure on folding seat, by controlling the flip of the connected parts and closing, thereby realizing the folding of the seat, such as the utility model patent CN 2022209106 19.6 disclosed a kind of folding foot stool, it includes stool body and support leg, the upper portion of the stool body is provided with hinge shaft, the both ends of the upper portion of support leg are provided with guide rail respectively, the hinge shaft is arranged in guide rail to realize the hinge of support leg and stool body, the upper portion of the stool body is also provided with abutting portion, when the support leg is in the state of being opened, the hinge shaft is located at the lower end of guide rail, and the upper end of support leg is abutted on abutting portion, when the support leg is in the state of being folded, the hinge shaft is located at the upper end of guide rail, and the upper end of support leg and the lower end of abutting portion are provided with gap for facilitating the rotation and folding of support leg around hinge shaft;The stool body is ladder stool, including at least two steps, the abutting portion is located at the bottom surface of top step;The stool body includes first side plate and second side plate located on both sides of step, the bottom surface of top step is provided with first hinge shaft mounting seat and second hinge shaft mounting seat at both ends respectively, first hinge shaft mounting hole and second hinge shaft mounting hole are arranged on first side plate and second side plate respectively, hinge shaft is provided with two, which are first hinge shaft and second hinge shaft, one end of first hinge shaft is arranged on first hinge shaft mounting hole, and the other end is arranged on first hinge shaft mounting seat, one end of second hinge shaft is arranged on second hinge shaft mounting hole, and the other end is arranged on second hinge shaft mounting seat.

[0004] In order to facilitate the disassembly and assembly of seat, first hinge shaft and first hinge shaft mounting seat are mostly connected through thread, but during the relative rotation of stool body and support leg, first hinge shaft and first hinge shaft mounting seat are easily driven to rotate relatively, thereby causing the loose connection of stool body and support leg, affecting the normal use of foot stool and the safety of foot stool. SUMMARY

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a child toilet stool ladder hinging structure which is convenient to use and high in safety.

[0006] The utility model discloses a purpose is realized as follows:

[0007] The utility model relates to a child toilet ladder hinge structure, including first hinge piece and second hinge piece, first hinge piece and second hinge piece are connected through fastener, be provided with hinge hole on the first hinge piece, be provided with positioning hole on the second hinge piece, and the fastener includes detachable connection connecting rod and end cap, is provided with the hinge part of adapting with hinge hole on the connecting rod, and the first hinge piece can rotate with the connecting rod with the cooperation of hinge part and hinge hole, and the positioning part of adapting with positioning hole is arranged to the side close to the end cap of hinge part, and the relative rotation of second hinge piece and connecting rod is limited with the cooperation of positioning part and positioning hole, and the end cap cooperates with the connecting rod to avoid the first hinge piece and second hinge piece and the connecting rod disengaging.

[0008] The utility model further sets up: be provided with the screw hole in the connecting rod, be provided with the screw thread part of adapting with screw hole on the end cap, and the relative fixing of connecting rod and end cap is realized with the cooperation of screw thread part and screw hole.

[0009] The utility model further sets up: the length of hinge part is greater than the length of hinge hole, and the side away from the positioning part of hinge part is provided with the limit convex edge, and the side close to the positioning part of hinge part is provided with the abutting wall, and the end cap can drive the abutting wall and make the relative fixing of positioning part and positioning hole abut at the end of positioning hole.

[0010] The utility model further sets up: the cross section shape of hinge part and positioning part is same, and the end of hinge part extends and forms the positioning part, and the limit side wall and the arc hinge side wall are all provided on hinge part and positioning part, and the relative rotation of first hinge piece and connecting rod is connected with the cooperation of hinge side wall and hinge hole, and the relative rotation of second hinge piece and connecting rod is limited with the cooperation of limit side wall and positioning hole.

[0011] The utility model further sets up: the cross section of positioning part reduces along with the distance increasing of the distance of hinge part, and the cross section of positioning hole reduces along with the distance increasing of the distance of hinge hole.

[0012] The utility model further sets up: the connecting rod includes the rod body of cylindrical, and the limit convex edge is provided to the one end of rod body, and the limit side wall is formed to the inside recess of the side wall of the one end away from the limit convex edge of rod body, and the part of rod body is positioning part that is provided with the limit side wall, and the part of rod body is hinge part that is not provided with the limit side wall.

[0013] The utility model further sets up: first receiving groove and second receiving groove are provided with respectively on the first hinge piece and second hinge piece, and the limit convex edge is rotatably arranged in the first receiving groove, and the end cap is received in the second receiving groove, and the control part for driving the rotation of end cap is provided to the end of end cap.

[0014] The utility model further sets up: at least two limit side walls are provided to the side of positioning part, and the limit side wall is circumferentially uniformly arranged on the outer periphery of connecting rod.

[0015] The utility model further sets up: arc limit slot and limit protruding are separately arranged on first hinged part and second hinged part, control first hinged part and second hinged part relative rotation, limit protruding relative sliding along arc limit slot, thereby make arc limit slot can limit the rotation angle of first hinged part and second hinged part.

[0016] The utility model further sets up: the annular groove of circular ring is arranged on second hinged part, and the hinged protruding of adaptation is arranged on first hinged part with annular groove.

[0017] The utility model has the advantages compared with prior art:

[0018] In the utility model, the connecting rod is provided with the hinged part and the positioning part matched with the hinged hole and the positioning hole, the connecting rod and the end cap are fixed relative to the second hinged part when the first hinged part and the second hinged part rotate relative to each other, the connection between the connecting rod and the end cap is not easy to loosen, the first hinged part and the second hinged part are stably connected, the user is convenient to use, and the safety of the folding chair is improved.

[0019] In the utility model, the connecting rod and the end cap are convenient to disassemble and install, the folding chair is convenient to assemble and produce and disassemble and store, and the user is convenient to use.

[0020] In the utility model, the hinged side wall is convenient for the relative rotation of the first hinged part and the connecting rod, the limiting side wall can limit the relative rotation of the second hinged part and the connecting rod, the hinged part and the positioning part with the same cross section are convenient for the production and processing of the connecting rod, and the folding chair is convenient for production and processing.

[0021] The positioning part is convenient to produce and process in that the limit side wall is formed by recessing to the side wall of the rod body, the cross section shape of the positioning part and the hinge part is different in the structure, the two ends of the fastener can be prevented from being reversed in the installation process, the fastener loosening caused by this can be avoided, the user is convenient to use, and the occurrence of an accident can be avoided; the first receiving groove and the second receiving groove are arranged, the first hinge part and the second hinge part can be prevented from being touched by mistake in the use process, and the fastener can be prevented from being damaged or loosened by mistake; the plurality of limit side walls which are uniformly arranged in the circumference are convenient for flexible installation of the connecting rod, and the hinge structure is convenient for quick assembly.

[0022] The arc-shaped limit groove and the limit protrusion are convenient for stable connection of the first hinge part and the second hinge part, the shaking of the first hinge part and the second hinge part in the use process is reduced or even avoided, the maximum rotation angle of the first hinge part and the second hinge part can be limited in the structure, and the first hinge part and the second hinge part are convenient for stable expansion; the annular groove and the hinge protrusion are arranged, the stable rotation of the first hinge part and the second hinge part is facilitated, the connecting rod is prevented from being damaged due to too large stress in the use process, and the service life of the connecting rod is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the embodiment one of the utility model;

[0024] Figure 2 It is an explosion schematic view of the embodiment one of the utility model;

[0025] Figure 3 It is a partial sectional view of the embodiment one of the utility model;

[0026] Figure 4 It is a partial structural schematic view of the first hinge part in the embodiment one of the utility model;

[0027] Figure 5 It is a partial structural schematic view of the second hinge part in the embodiment one of the utility model;

[0028] Figure 6 It is a structural schematic view of the connecting rod in the embodiment one of the utility model;

[0029] Figure 7 It is a structural schematic view of the end cap in the embodiment one of the utility model;

[0030] Figure 8 It is an explosion schematic view of the embodiment two of the utility model;

[0031] Figure 9 It is a structural schematic view of the connecting rod in the embodiment two of the utility model;

[0032] Figure 10 It is one of structural schematic views of different connecting rods of the utility model;

[0033] Figure 11 is the structure diagram of the different connecting rod of the utility model.

[0034] The meaning of the figure mark: 1 - first hinged piece; 11 - hinged hole; 12 - hinged protrusion; 13 - limiting protrusion;

[0035] 14 - first receiving groove; 2 - second hinged piece; 21 - positioning hole; 22 - annular groove; 23 - arc-shaped limiting groove;

[0036] 24 - second receiving groove; 3 - fastener; 31 - connecting rod; 32 - end cap; 311 - rod body; 312 - hinged part;

[0037] 313 - positioning part; 314 - limiting flange; 315 - threaded hole; 316 - hinged side wall; 317 - limiting side wall;

[0038] 318 - abutting wall; 321 - flange; 322 - threaded part. DETAILED DESCRIPTION

[0039] The utility model will be further described in conjunction with the specific embodiment of the drawings:

[0040] Referring to Figures 1 to 11 As shown in the figure, a child toilet ladder hinged structure, including first hinged piece 1 and second hinged piece 2, first hinged piece 1 and second hinged piece 2 are connected through fastener 3, first hinged piece 1 is provided with hinged hole 11, and second hinged piece 2 is provided with positioning hole 21, and fastener 3 includes detachable connecting connecting rod 31 and end cap 32, connecting rod 31 is provided with hinged part 312 matched with hinged hole 11, hinged part 312 is matched with hinged hole 11, and first hinged piece 1 can be rotated relative to connecting rod 31, and hinged part 312 is provided with positioning part 313 matched with positioning hole 21 on the side close to end cap 32, positioning part 313 is matched with positioning hole 21, and the relative rotation of second hinged piece 2 and connecting rod 31 is limited, and end cap 32 is matched with connecting rod 31 to avoid that first hinged piece 1 and second hinged piece 2 are separated from connecting rod 31, in the structure, because hinged part 312 and positioning part 313 matched with hinged hole 11 and positioning hole 21 are respectively arranged on connecting rod 31, when first hinged piece 1 and second hinged piece 2 rotate relative, connecting rod 31 and end cap 32 are fixed relative to second hinged piece 2, the connection of connecting rod 31 and end cap 32 is not easy to loosen, the stable connection of first hinged piece 1 and second hinged piece 2 is convenient, the user is convenient to use, and it is favorable to improve the safety of folding chair.

[0041] The connecting rod 31 is provided with a threaded hole 315, and the end cap 32 is provided with a threaded part 322 matched with the threaded hole 315, the threaded part 322 is matched with the threaded hole 315 to fix the connecting rod 31 and the end cap 32 relatively, the threaded connecting rod 31 and the end cap 32 are convenient to disassemble and install, convenient to assemble and produce and disassemble and store the folding chair, and convenient for the user to use.

[0042] Preferably, the section of the positioning part 313 decreases with the distance from the hinge part 312, and the section of the positioning hole 21 decreases with the distance from the hinge hole 11, because the section of the positioning part 313 decreases with the distance from the hinge part 312, and the section of the positioning hole 21 decreases with the distance from the hinge hole 11, the positioning part 313 and the positioning hole 21 are matched conveniently, the shaking of the second hinge 2 and the fastener 3 in use is reduced, and the positioning part 313 and the positioning hole 21 are quickly disassembled and installed conveniently.

[0043] The section shape of the hinge part 312 and the positioning part 313 in the utility model can be the same, and the section shape of the hinge part 312 and the positioning part 313 can also be different, which has the following embodiments: Embodiment

[0044] In the embodiment, the section shape of the hinge part 312 and the positioning part 313 is the same, the end of the hinge part 312 extends to form the positioning part 313, the hinge part 312 and the positioning part 313 are both provided with a limiting side wall 317 and an arc-shaped hinge side wall 316, the hinge side wall 316 is matched with the hinge hole 11 to connect the first hinge 1 and the connecting rod 31 rotatably, the limiting side wall 317 is matched with the positioning hole 21 to limit the relative rotation of the second hinge 2 and the connecting rod 31, in the structure, the hinge side wall 316 is convenient for the relative rotation of the first hinge 1 and the connecting rod 31, the limiting side wall 317 can limit the relative rotation of the second hinge 2 and the connecting rod 31, and the hinge part 312 and the positioning part 313 with the same section shape are convenient for the production and processing of the connecting rod 31 and the production and processing of the folding chair. Embodiment

[0045] The connecting rod 31 comprises a cylindrical rod body 311, the rod body 311 is provided with a limiting convex edge 314 at one end, the side wall of the end of the rod body 311 away from the limiting convex edge 314 is recessed inward to form a limiting side wall 317, the part of the rod body 311 provided with the limiting side wall 317 is the positioning part 313, the part of the rod body 311 not provided with the limiting side wall 317 is the hinge part 312, the recessing of the limiting side wall 317 in the side wall of the rod body 311 is convenient for the production and processing of the positioning part 313, and in the structure, the section shape of the positioning part 313 and the hinge part 312 is different, which can avoid the inversion of the two ends of the fastener 3 in the installation process, avoid the loosening of the fastener 3 caused by this, convenient for the user to use, and can avoid the occurrence of accidents.

[0046] The length of the hinge part 312 is greater than the length of the hinge hole 11, the hinge part 312 is provided with a limiting protrusion 314 away from the positioning part 313, and the hinge part 312 is provided with a abutting wall 318 close to the positioning part 313, the end cap 32 can drive the abutting wall 318 to abut at the end of the positioning hole 21 and fix the positioning part 313 relative to the positioning hole 21, in the structure, when the connecting rod 31 and the end cap 32 are tightly matched, the second hinge part 2 will abut on the abutting wall 318, avoiding that the relative rotation of the first hinge part 1 and the second hinge part 2 is affected by the over-tightening of the connecting rod 31 and the end cap 32 during use, facilitating the reduction of the friction between the first hinge part 1 and the second hinge part 2, and facilitating the flexible unfolding and folding of the first hinge part 1 and the second hinge part 2.

[0047] The first hinge part 1 and the second hinge part 2 are respectively provided with a first receiving groove 14 and a second receiving groove 24, the limiting protrusion 314 is rotationally arranged in the first receiving groove 14, one end of the end cap 32 is provided with a protruding edge 321, the protruding edge 321 is received in the second receiving groove 24, and the end cap 32 is provided with a control part for driving the end cap 32 to rotate, the first receiving groove 14 and the second receiving groove 24 can reduce the accidental touch of the first hinge part 1 and the second hinge part 2 during use, and avoid that the fastener 3 is damaged or loosened accidentally.

[0048] The positioning part 313 is provided with at least two limiting side walls 317, the limiting side walls 317 are circumferentially and uniformly arranged on the outer periphery of the connecting rod 31, and the plurality of limiting side walls 317 arranged circumferentially and uniformly facilitate the flexible installation of the connecting rod 31 and the rapid assembly of the hinge structure, and the structure is as shown in the drawings Figure 10 and Figure 11 .

[0049] The first hinge part 1 and the second hinge part 2 are respectively provided with an arc-shaped limiting groove 23 and a limiting protrusion 13; the first hinge part 1 and the second hinge part 2 are controlled to rotate relative to each other, the limiting protrusion 13 slides along the arc-shaped limiting groove 23, so that the arc-shaped limiting groove 23 can limit the rotation angle of the first hinge part 1 and the second hinge part 2, the arc-shaped limiting groove 23 and the limiting protrusion 13 facilitate the stable connection of the first hinge part 1 and the second hinge part 2, reduce or even avoid the shaking of the first hinge part 1 and the second hinge part 2 during use, and the structure can limit the maximum rotation angle of the first hinge part 1 and the second hinge part 2, and facilitate the stable unfolding of the first hinge part 1 and the second hinge part 2.

[0050] Preferably, the second hinge 2 is provided with a circular annular groove 22, and the first hinge 1 is provided with a hinge protrusion 12 matched with the annular groove 22, the annular groove 22 and the hinge protrusion 12 facilitate the stable rotation of the first hinge 1 and the second hinge 2, reduce the damage of the connecting rod 31 due to excessive stress during use, and facilitate the extension of the service life of the connecting rod 31.

[0051] The child toilet ladder hinge structure in the utility model can be applied to child toilet ladders, adult toilets, adult toilet chairs, child footstools and the like.

[0052] The above embodiments are only preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A child toilet ladder hinge structure comprising a first hinge piece (1) and a second hinge piece (2), the first hinge piece (1) and the second hinge piece (2) being rotationally connected by a fastener (3), characterized in that: The first hinge piece (1) is provided with a hinge hole (11), the second hinge piece (2) is provided with a positioning hole (21), the fastener (3) comprises a detachable connecting rod (31) and an end cap (32), the connecting rod (31) is provided with a hinge part (312) matched with the hinge hole (11), the hinge part (312) cooperates with the hinge hole (11) to make the first hinge piece (1) relatively rotatable with the connecting rod (31), the hinge part (312) is provided with a positioning part (313) matched with the positioning hole (21) near the side of the end cap (32), the positioning part (313) cooperates with the positioning hole (21) to limit the relative rotation of the second hinge piece (2) and the connecting rod (31), and the end cap (32) cooperates with the connecting rod (31) to avoid the disconnection of the first hinge piece (1), the second hinge piece (2) and the connecting rod (31).

2. A child toilet ladder hinge structure according to claim 1, characterized in that: The connecting rod (31) is provided with a threaded hole (315), the end cap (32) is provided with a threaded part (322) matched with the threaded hole (315), and the threaded part (322) cooperates with the threaded hole (315) to relatively fix the connecting rod (31) and the end cap (32).

3. The child toilet ladder hinge structure of claim 1, wherein: The length of the hinge part (312) is greater than the length of the hinge hole (11), the hinge part (312) is provided with a limiting protruding edge (314) away from the side of the positioning part (313), and the hinge part (312) is provided with an abutting wall (318) near the side of the positioning part (313), and the end cap (32) can drive the abutting wall (318) to abut against the end of the positioning hole (21) and relatively fix the positioning part (313) and the positioning hole (21).

4. The child toilet ladder hinge structure of claim 1, wherein: The hinge part (312) and the positioning part (313) have the same cross-sectional shape, the hinge part (312) extends to form the positioning part (313) at the end, and the hinge part (312) and the positioning part (313) are both provided with a limiting side wall (317) and an arc-shaped hinge side wall (316), the hinge side wall (316) cooperates with the hinge hole (11) to make the first hinge piece (1) rotatably connected with the connecting rod (31), and the limiting side wall (317) cooperates with the positioning hole (21) to limit the relative rotation of the second hinge piece (2) and the connecting rod (31).

5. A hinged structure for a child toilet ladder according to claim 1 or 4, characterized in that: The cross section of the positioning part (313) decreases with the increase of the distance from the hinge part (312), and the cross section of the positioning hole (21) decreases with the increase of the distance from the hinge hole (11).

6. The child toilet ladder hinge structure of claim 1, wherein: The connecting rod (31) comprises a cylindrical rod body (311), the rod body (311) is provided with a limiting protruding edge (314) at one end, the side wall of the rod body (311) away from the limiting protruding edge (314) is recessed inward to form a limiting side wall (317), the part of the rod body (311) provided with the limiting side wall (317) is the positioning part (313), and the part of the rod body (311) not provided with the limiting side wall (317) is the hinge part (312).

7. A child toilet ladder hinge structure according to claim 5, characterized in that: The first hinge piece (1) and the second hinge piece (2) are respectively provided with a first receiving groove (14) and a second receiving groove (24), a limiting protrusion (314) is rotatably arranged in the first receiving groove (14), an end cap (32) is received in the second receiving groove (24), and the end cap (32) is provided with a control portion at an end portion for driving the end cap (32) to rotate.

8. A hinged structure for a child toilet ladder according to claim 4 or 6 or 7, characterized in that: The positioning portion (313) is provided with at least two limiting side walls (317) on a side surface, and the limiting side walls (317) are uniformly arranged on an outer periphery of the connecting rod (31).

9. The child toilet ladder hinge structure of claim 1, wherein: The first hinge piece (1) and the second hinge piece (2) are respectively provided with an arc-shaped limiting groove (23) and a limiting protrusion (13); the first hinge piece (1) and the second hinge piece (2) are controlled to rotate relative to each other, the limiting protrusion (13) slides along the arc-shaped limiting groove (23) relative to each other, so that the arc-shaped limiting groove (23) can limit the rotation angle of the first hinge piece (1) and the second hinge piece (2).

10. A child toilet ladder hinge structure according to claim 9, characterized in that: The second hinge piece (2) is provided with a circular annular groove (22), and the first hinge piece is provided with a hinge protrusion (12) matched with the annular groove (22).

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