Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a hinge, which aims to solve the problem that a door body droops to open a door lock due to the fact that a handle cantilever is lengthened due to the fact that the diameter of an observation window is enlarged, and the strength of the hinge is enhanced.
In order to solve the technical problems, the invention adopts the technical scheme that:
the hinge comprises a hinge seat and a hinge shaft, wherein two hinge cantilevers which are oppositely arranged and extend outwards in a protruding mode are arranged on the hinge seat, coaxial pin holes are formed in the free ends of the hinge cantilevers, two ends of the hinge shaft are rotatably inserted and fixed in the pin holes in a plugging mode, a hinge shaft sleeve is sleeved on the hinge shaft, and two ends of the hinge shaft sleeve respectively abut against the inner sides of the two hinge cantilevers.
Furthermore, the hinge shaft sleeve comprises a first side surface and a second side surface which are opposite, the first side surface faces one side of the hinge seat, the second side surface faces one side far away from the hinge seat, positioning ribs protruding along the radial direction are arranged at two ends of the first side surface, and fixing ribs protruding along the radial direction are arranged at two ends of the second side surface.
Further, be equipped with on the hinge seat to being the sunken depressed part of arc with the hinge cantilever opposite side, the surface transitional coupling of depressed part all around and hinge seat, the depressed part sets up in one side with the hinge cantilever, and corresponds the setting with the hinge axle sleeve.
Furthermore, the hinge seat is of a plate-shaped structure, two ends of one side of the hinge seat, which is the same as the hinge cantilever, are provided with inwards concave U-shaped grooves, and threaded holes penetrating through the hinge seat are formed in the U-shaped grooves.
Furthermore, one side of the hinge seat opposite to the hinge cantilever is provided with at least one fixed clamping jaw and at least one positioning column.
The invention also relates to an observation window applied to the drum washing machine, which is characterized in that: the drum washing machine comprises a front plate, an observation window is rotatably arranged on the front plate through any one of the hinges 1 to 5, a hinge seat is fixed with the front plate, and a hinge shaft sleeve is fixedly hinged with the observation window.
Further, the middle part of front bezel is equipped with the installing port of installation observation window, be equipped with on the front surface of front bezel to the back sunken, around establishing the circular recess in installing port periphery, be equipped with the installation department in the circular recess, the hinge is fixed in the installation department.
Furthermore, the observation window includes the inside casing, and the periphery of inside casing is equipped with the opening that supplies the hinge cantilever to pass, and the part between two openings stretches into the below of hinge axle sleeve, the inside casing is equipped with the constant head tank for the position of location muscle, and the location muscle corresponds stretches into in the constant head tank to make the inside casing rotate around the hinge.
Further, a hinge reinforcing plate buckled above the hinge is arranged on the inner frame, the hinge reinforcing plate is fixed on the inner frame through a bolt, and at least one part of the hinge reinforcing plate is fixedly attached to the hinge shaft sleeve.
Further, the position that is relative to the hinge cantilever on the hinge reinforcing plate is equipped with the bellying, and the free end of hinge cantilever stretches into to the bellying, is equipped with uncovered on the bellying, and the fixed muscle on the hinge axle sleeve is stretched out by uncovered.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The integral hinge shaft sleeve is sleeved on the hinge shaft, so that the contact area between the observation window and the hinge is increased, the strength is high, and the stability is good.
2. The hinge seat is provided with a groove which is arc-shaped and sunken towards the direction of the front plate, so that space is provided for the rotation of the inner frame around the hinge, and the door opening angle of the observation window is increased.
3. The hinge reinforcing plate is arranged between the inner frame and the middle frame and corresponds to the hinge, so that the overall rigidity and strength of the observation window are effectively improved, and the phenomenon of door locking caused by the fact that the observation window is drooping in the long-term use process is avoided.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the observation window applied to the drum washing machine according to the embodiment of the present invention includes a front plate 1 installed in front of the washing machine, the front plate 1 is provided with a mounting opening opposite to the input opening, the observation window is fixed on the front plate 1 by a hinge 7 to cover the mounting opening, the observation window includes an inner frame 2, a glass basin 3, a middle frame 4, an outer frame 5, a handle and a window screen 50, which are sequentially installed from inside to outside, the hinge 7 is installed and fixed on the front plate 1 and is hinged to the inner frame 2, so that the inner frame 2 can rotate relative to the front plate 1 to open the input opening of the washing machine.
Example one
As shown in fig. 1 and 4, the first reinforcing plate 6 is installed at a position, opposite to the hinge 7, of the back surface of the front plate 1 in the present embodiment, so that the hinge 7 can be effectively supported, and the overall strength of the observation window can be further enhanced; a second reinforcing plate 8 is arranged between the inner frame 2 and the middle frame 4 and corresponds to the hinge 7, the second reinforcing plate 8 is fixed on the inner frame 2, the glass basin 3 is arranged in the middle of the inner frame 2, the outer edge of the glass basin 3 is positioned between the inner frame 2 and the second reinforcing plate 8, and the inner frame 2 and the second reinforcing plate 8 are fixed through connecting pieces such as bolts.
First reinforcing plate 6 and second reinforcing plate 8 are platelike structure, and first reinforcing plate 6 and hinge 7 are fixed respectively in the both sides of front bezel 1, and first reinforcing plate 6 passes through the bolt fastening on front bezel 1, have strengthened the rigidity of hinge 7 fixed position's intensity and front bezel 1, and the hinge includes hinge mount 71 and the rotatory hinge pin 73 of relative hinge mount 71, hinge mount 71 and front bezel 1 and first reinforcing plate 6 fixed mounting, hinge pin 73 are articulated with inside casing 2 and/or second reinforcing plate 8, and second reinforcing plate 8 has effectively promoted the holistic rigidity and the intensity of observation window, avoids the observation window to hang down the appearance of lock phenomenon of beating in the long-term use.
Example two
As shown in fig. 1 to 3, in this embodiment, the front plate 1 is provided with a mounting opening corresponding to the input opening of the washing machine, the observation window is correspondingly installed in the mounting opening, the front surface of the front plate 1 is provided with a circular groove 12 recessed toward the back and wound around the periphery of the mounting opening, the inner frame 2 is installed inside the circular groove 12, the periphery of the circular groove 12 is provided with a circle of reinforcing rib 11 protruding outward to improve the rigidity of the front plate, the reinforcing rib 11 protrudes upward in an arc-shaped inclined manner from the surface of the front plate 1 toward the periphery of the circular groove 12, and the inclined surface is in smooth transition connection with the peripheral wall of the circular groove 12.
In this embodiment, circular slot 12 inner circle is equipped with the sunken ring channel 13 in front bezel back, and circular slot 12 closes up the setting to the slope in the mounting hole with the junction of ring channel 13, is equipped with on the inside casing 2 with the outside convex circular protruding of ring channel 13 assorted, inside casing 2 lock is inside circular slot 12, makes the observation window imbed in front bezel 1, promotes space utilization, protects the observation window not receive external force impact deformation in the washing machine transportation.
In this embodiment, the front surface of the front plate 1 is recessed in a stepped manner from the outer periphery to the mounting opening, the diameter of the circular groove 12 is designed to the maximum, and the upper edge of the circular groove 12 in the present invention protrudes from the upper edge of the front plate to increase the diameter of the observation window. The circular groove 12 is provided with a mounting part 14 for mounting the hinge 7, the mounting part 14 is recessed towards the back of the front plate and is in the same plane with the annular groove 13, the hinge seat 71 is fixedly mounted in the mounting part 14, and the periphery of the circular groove 12 is recessed towards the mounting part 14 in a step shape so as to increase the rotation angle of the observation window around the hinge 7.
EXAMPLE III
Referring to fig. 5 to 6, in this embodiment, the first reinforcing plate 6 is detachably and fixedly mounted on the back surface of the front plate 1, so as to enhance the rigidity of the front plate 1, the first reinforcing plate 6 is disposed opposite to the mounting portion 14 and is adapted to the shape of the mounting portion 14, an arc-shaped periphery is formed towards one side of the mounting opening of the first reinforcing plate 6, and one side of the plate-shaped structure opposite to the arc-shaped periphery is bent perpendicularly twice towards the same direction to form a fixing portion, so as to improve the stability, preferably, the first reinforcing plate 6 is a sheet metal part.
In this embodiment, the first reinforcing plate 6 includes a body 60, a first bending surface 61 and a second bending surface 62, the first bending surface 61 is parallel to the body 60, two sides of the second bending surface 62 are perpendicular to the body 60 and the first bending surface 61, and a plurality of uniform triangular supporting structures 63 arranged at intervals and recessed inwards are disposed at the connection point of the first bending surface 61 and the second bending surface 62 and the connection point of the second bending surface and the body 60.
In this embodiment, be equipped with on the first face of buckling 61 with front bezel 1 fixed complex pilot hole 66, first face of buckling 61 passes through bolt detachable and fixes on front bezel 1, the periphery of the back of front bezel 1 outwards turns up the formation mounting groove, first face of buckling 61 and the second face of buckling 62 stretch into to the mounting groove in, body 60 is fixed with the laminating of the trailing flank of front bezel 1.
In this embodiment, a first threaded hole 76 is formed in the hinge 7, a second threaded hole 64 and at least one clamping groove 65, which correspond to the hinge 7 and fix the hinge 7, are formed in the body 60 of the first reinforcing plate 6, the first threaded hole 76 and the second threaded hole 64 are coaxially arranged, the hinge 7 is fixed by passing through the first threaded hole 76, the front plate 1 and the second threaded hole 64 through bolts, a fixing jaw is arranged on the hinge 7 and faces one side of the front plate 1, and the fixing jaw passes through the front plate 1 and is fixedly connected with the clamping groove 65.
Example four
As shown in fig. 7 to 9, the hinge 7 of the present embodiment includes a hinge base 71 and a hinge shaft 73 rotating relative to the hinge base 71, the hinge 7 is fixed on the mounting portion 14 of the front plate 1 through the hinge base 71, and both ends of the hinge base 71 are provided with first screw holes 76. Two hinge cantilevers 71 which are oppositely arranged and protrude outwards are arranged on the hinge base 71, pin holes are formed in the free ends of the hinge cantilevers 71, the pin holes in the hinge cantilevers 71 are coaxially arranged, two ends of the hinge shaft 73 are respectively inserted and fixed in the pin holes, openings for the hinge cantilevers 71 to penetrate through are formed in the periphery of the inner frame 2, the portion between the two openings extends into the lower portion of the hinge shaft 73, the second reinforcing plate 8 is fixed on the inner frame 2 and correspondingly covers the hinge 7, the shape of the second reinforcing plate 8 is matched with that of the inner frame 2 and the hinge 7, and protruding portions 81 which are opposite to the hinge cantilevers 71 are arranged on the surface of the second reinforcing plate 8.
Two mounting ways of the hinge 7 and the inner frame 2 are provided below:
in this embodiment, a hinge shaft sleeve 74 is sleeved on the hinge shaft 73, two end surfaces of the hinge shaft sleeve 74 are respectively in limited contact with two opposite ends of the hinge cantilever 72, the hinge shaft sleeve 74 includes a first side surface and a second side surface, the first side surface faces one side of the hinge seat 71, the second side surface faces one side away from the hinge seat 71, two ends of the first side surface are provided with positioning ribs 741 protruding in the radial direction, two ends of the second side surface are provided with fixing ribs 742 protruding in the radial direction, a free end of the hinge cantilever 72 extends into the protruding portion 81 of the second reinforcing plate, the protruding portion 81 is provided with an opening 82, the fixing ribs 742 protrude outwards from the opening 82, a top side of the fixing ribs 742 is flush with one side of the second reinforcing plate 8 facing the middle frame 4, at least a part of the second reinforcing plate 8 wraps the outer periphery of the hinge shaft sleeve 74 to increase the contact area between the hinge and the second reinforcing plate 8, hinge axle sleeve 74 sets up in the centre of hinge cantilever 72, has improved the intensity of hinge 7, and hinge axle sleeve 74 adopts the integral type design, promotes hinge 7's overall stability, avoids the observation window to hang down and hits the lock in the use. The positioning rib 741 protrudes and extends in the radial direction of the hinge shaft sleeve 74, the protruding direction of the positioning rib 741 is opposite to the protruding direction of the fixing rib 742, a positioning groove is arranged at a position of the inner frame 2 relative to the positioning rib 741, the positioning rib 741 correspondingly extends into the positioning groove, so that the positioning rib 741 is in limited contact with the inner frame 2, the inner frame 2 is pulled, and the positioning rib 741 is pushed by the inner frame 2 to rotate around the hinge 7 to be opened; or, the positioning rib 741 is in limited contact with the second reinforcing plate 8, the second reinforcing plate 8 is fixed on the inner frame 2, and in the process of pulling the inner frame 2, the second reinforcing plate 8 rotates along with the inner frame 2, so that the second reinforcing plate 8 pushes the positioning rib 741 of the hinge 7 to rotate.
In this embodiment, another connection manner of the hinge 7 and the inner frame 2 is provided, the hinge shaft 73 is not provided with the hinge bushing 74, the protruding portion 81 of the second reinforcing plate 8 is provided with the hinge hole 83 coaxial with the pin hole, two ends of the hinge shaft 73 respectively pass through the hinge cantilever 72 and the protruding portion 81, the second reinforcing plate 8 can rotate around the hinge shaft 73 to drive the inner frame 2 to rotate around the hinge 7, a portion between the two protruding portions 81 is recessed downward to be attached to the inner frame 2, and the hinge shaft 73 is installed after the second reinforcing plate 8 is fixed in this installation manner, which is simple, and the second reinforcing plate 8 of the former installation manner is buckled above the whole hinge 7, so as to increase the contact area between the hinge and the second reinforcing member 8, and improve the strength of the hinge 7.
In this embodiment, the hinge base 71 is provided with a recessed portion 75 recessed in an arc shape toward the front plate 1, the periphery of the recessed portion 75 is in transitional connection with the surface of the hinge base 71, the recessed portion 75 and the hinge cantilever 72 are arranged on one side and correspond to the hinge shaft 73, and the door opening angle of the observation window is increased to 145 °.
In this embodiment, the hinge base 71 is provided with at least one fixed jaw 77, the first reinforcing plate 6 is provided with a clamping groove 65 corresponding to the fixed jaw 77, the fixed jaw 77 passes through the front plate 1 and is fixedly clamped with the clamping groove 65 of the first reinforcing plate 6, the hinge base 71 is further provided with a positioning column 78, and the first reinforcing plate 6 is provided with a positioning column hole corresponding to the positioning column 78.
In this embodiment, the hinge base 71 is a plate-shaped structure, two ends of the same side of the hinge base 71 as the hinge cantilever 72 are provided with an inwardly recessed U-shaped groove, and a threaded hole penetrating through the hinge base 71 is formed in the U-shaped groove.
EXAMPLE five
As shown in fig. 4 and 10, in the present embodiment, the second reinforcing plate 8 is a sheet metal part fixedly mounted on the inner frame 2 and covering the upper side of the hinge 7, the second reinforcing plate 8 is provided with a limiting profiling adapted to the inner frame 2 and the hinge 7 so as to tightly fix the second reinforcing plate 8 on the inner frame 2, and the second reinforcing plate 8 is provided with a plurality of third threaded holes 84 so as to be fixed in the inner frame 2 by bolts and the like.
In this embodiment, two hinge cantilevers 72 are disposed on the hinge base 71, the surface of the second reinforcing plate 8 is disposed with a protrusion 81 opposite to the hinge cantilever 72, the free end of the hinge cantilever 72 extends into the protrusion 81, and the protrusion 81 is an inverted open slot.
In this embodiment, the appearance of second reinforcing plate 8 and the appearance looks adaptation of inside casing 2, its length is not less than 1/4 of inside casing 2, and the outward flange of glass basin 3 is contradicted at the inward flange of inside casing 2, and second reinforcing plate 8 can replace center 4 to realize compressing tightly fixing on inside casing 2 glass basin 3, and is reliable effective, has provided the bulk strength of observation window, prevents rocking, or rotating of washing machine glass basin 3 in the use.
EXAMPLE six
As shown in fig. 4 and 11, in the present embodiment, one side of the glass basin 3 is fixed by the second reinforcing plate 8, the other side is fixed by the pressing plates 9, the second reinforcing plate 8 and the pressing plates 9 cooperate to clamp the glass basin 3 on the inner frame 2, the structure is stable, and the glass basin 3 can also be fixed by the pressing plates 9.
In this embodiment, the outward flange of glass basin 3 and the spacing laminating of inside casing 2's inward flange, the rear side of 3 outward flanges of glass basin is equipped with the spacing muscle of round, spacing muscle and inside casing 2 inner circle are spacing, and the outward flange of glass basin 3 compresses tightly through preforming 9, and the bolt fastening is passed through on inside casing 2 to the one end of preforming 9, and the other end makes glass basin 3 fixed between preforming 9 and inside casing 2 with the spacing contact of 3 outward flanges of glass basin.
In the embodiment, one side of the pressing sheet 9, which is attached to the inner frame 2, is a smooth surface, one end of the smooth surface is attached and fixed to the outer edge of the glass basin 3, and the other end of the smooth surface is attached and fixed to the inner frame 2, so that the outer edge of the glass basin 3 is tightly pressed on the inner edge of the inner frame 2; preferably, a plurality of protruding ribs 93 perpendicular to the pressing sheet 9 are arranged on one side, opposite to the smooth surface, of the pressing sheet 9, fourth threaded holes 91 penetrating through the pressing sheet 9 are formed between the protruding ribs 93, guide posts protruding outwards are arranged on the pressing sheet 9, guide holes 92 penetrating through the guide posts are formed in the guide posts, the fourth threaded holes 91 and the guide holes 92 are arranged in the radial direction of the inner frame 2, and after the pressing sheet 9 is fixed with the inner frame 2, the axes of the fourth threaded holes 91 and the guide holes 92 are perpendicular to the surface of the inner frame 2.
In this embodiment, the smooth surface of the pressing sheet comprises a first plane 94 and a second plane 95 which are arranged in a staggered manner, the first plane 94 is in limit contact with the inner frame, the second plane 95 is in limit contact with the outer edge of the glass basin 3, the first plane 94 and the second plane 95 are connected through an inclined surface, and the fourth threaded hole 91 is formed in the first plane 94.
EXAMPLE seven
As shown in fig. 1, 2 and 12, the window screen 50 of the present embodiment is provided with a handle structure 51 for a user to open, the handle structure 51 is an inward concave arc-shaped groove, and one side of the arc-shaped groove facing the edge of the window screen 50 is opened to form a handle portion for the user to pull.
In this embodiment, the window screen 50 and the outer frame 5 are fixed on the middle frame 4 by a buckle, a hollow portion 41 is formed on the middle frame 4 at a position corresponding to the handle structure 51, and the periphery of the hollow portion 41 is matched with the shape of the arc-shaped groove. The handle is installed on one side of the hollow portion 41, the handle is an open groove 52, the opening of the groove 52 is perpendicular to the installation opening, the opening of the groove 52 is aligned with the opening of the arc-shaped groove, and the bottom wall of the groove 52 is opposite to the opening of the arc-shaped groove.
In this embodiment, the handle is provided with a plurality of fifth threaded holes 53, the handle is detachably fixed to one side of the middle frame 4 away from the window screen 50, the groove 52 extends from the hollow portion 41 of the middle frame 4, and the side wall of the groove 52 and the side wall of the arc-shaped groove form a handle portion together.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.