CN111237832B

CN111237832B - Anti-falling hook assembly and range hood with same

Info

Publication number: CN111237832B
Application number: CN202010123702.4A
Authority: CN
Inventors: 朱逸; 袁柯铭
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2021-10-26
Anticipated expiration: 2040-02-27
Also published as: CN111237832A

Abstract

The invention discloses an anti-falling hook assembly which comprises a hanging plate and a hook, wherein the hook comprises a lock catch arranged on the hanging plate and a lock plate arranged at intervals with the lock catch in a first direction, and the lock plate is provided with a lock hole; the lock catch comprises a base, a movable plate, a lock catch shell and a lock tongue, wherein the surface of one side, facing the lock plate, of the base is sunken into the base along a first direction to form a groove, one end of the movable plate is rotatably connected with the groove, the other end of the movable plate extends out of the base in the direction far away from the hanging plate, and the movable plate keeps the tendency of overturning towards the lock plate; the lock catch shell is arranged on the part of the movable plate extending out of the base, and the lock tongue is at least partially arranged in the lock catch shell and keeps the trend of extending out of the lock catch shell; the lock catch is arranged on one side of the hanging plate in the third direction, when the movable plate is turned to extend in the first direction, the lock catch shell and the hanging plate are positioned on two sides of the movable plate, and the lock tongue is inserted into the lock hole of the lock plate to realize self-locking; the first direction, the second direction and the third direction are mutually vertical in pairs.

Description

Anti-falling hook assembly and range hood with same

Technical Field

The invention relates to a mechanical connecting piece, in particular to an anti-falling hook assembly and a range hood applying the anti-falling hook assembly.

Background

The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

The up-draft range hood is usually installed right above a kitchen range, and most of the on-hook structures of the range hoods on the market at present adopt a traditional mode, namely a hook is installed on a wall body, and an on-hook hole is designed on the whole machine, so that the range hood can be stably hung on the wall body. The utility model discloses a range hood stores pylon as application number 200920052014.2's chinese utility model patent discloses, including link plate, couple, main technical characteristic is both ends are equipped with left end breach, right-hand member breach respectively about the couple, but the mounting means of this type of couple exists and lifts the process of hanging down again, makes to have a space between range hood and the wall cabinet, influences the matching of range hood and cupboard, and the installation is used inconveniently and is not pleasing to the eye.

In order to eliminate the gap, a common solution is to install the range hood first, and then match the wall cabinet according to the installation height of the range hood, so as to ensure seamless installation between the wall cabinet and the range hood. However, in this installation method, once the range hood fails or is cleaned, the range hood needs to be disassembled, and because the range hood and the cabinet are installed seamlessly, and the range hood needs to be disassembled by an upward lifting process, people are forced to disassemble the wall cupboard, which causes unnecessary waste of manpower and material resources. In order to solve the problem, the Chinese patent with the application number of 20171020834.X discloses an adjustable range hood hook, and the height can be freely adjusted by arranging an adjusting module sliding groove to connect a fixing frame, so that the trouble in use caused by improper installation of the range hood is avoided. However, the hook has the defects of complex structure and inconvenient operation, and has potential safety hazard because the hook is not provided with an unhooking prevention structure.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide an anti-dropping hook assembly aiming at the defects in the prior art, which can realize self-locking after hooking and ensure the stability of hooking.

The second technical problem to be solved by the invention is to provide a range hood with the anti-drop hook assembly, which can realize seamless installation with a hanging cabinet.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides an anticreep couple subassembly, includes link plate and couple, its characterized in that: the hook comprises a lock catch arranged on the hanging plate and a lock plate arranged at intervals with the lock catch in a first direction, and the lock plate is provided with a lock hole; the lock catch comprises a base used as a bearing part for hanging and connecting a hanging object, a movable plate, a lock catch shell and a lock tongue, wherein the surface of one side, facing the lock plate, of the base is recessed inwards along a first direction to form a groove, one end of the movable plate is rotatably connected with the groove through a connecting rotating shaft, the other end of the movable plate extends out of the base in the direction far away from the hanging plate, the connecting rotating shaft extends in a second direction, and the movable plate keeps the trend of turning towards the lock plate and extending in the first direction; the lock catch shell is arranged on the part of the movable plate extending out of the base, and the lock tongue is at least partially arranged in the lock catch shell and keeps the trend of extending out of the lock catch shell in the direction away from the base; the lock catch is arranged on one side of the hanging plate in the third direction, when the movable plate is turned to extend in the first direction, the lock catch shell and the hanging plate are positioned on two sides of the movable plate, and the lock tongue is inserted into a lock hole of the lock plate to realize self-locking; the first direction, the second direction and the third direction are mutually vertical pairwise.

In order to prevent the movable plate from turning excessively in the direction away from the locking plate and bear the force from the movable plate when the airplane hangs, the groove at least protrudes into the groove along the second direction at one side in the second direction to form a pressure bearing platform, and the corresponding side of the movable plate is supported on the pressure bearing platform.

In order to avoid unhooking during hanging, a first notch penetrating through the movable plate is formed in the position, away from the base, of the movable plate, one side, close to the movable plate, of the lock tongue is rotatably connected with a one-way baffle, a rotating shaft of the one-way baffle extends in the second direction, and the one-way baffle keeps a tendency of penetrating through the lock catch shell and the first notch in the movable plate; when the lock tongue extends out of the lock buckle shell, the one end, far away from the base, of the first notch of the one-way baffle and the movable plate is attached and can only turn over towards the direction of the base, and when the lock tongue retracts into the lock buckle shell, the one end, close to the base, of the first notch of the one-way baffle and the movable plate is attached and can only turn over towards the direction of the far away from the base.

In order to prevent the lock tongue from being separated from the lock catch shell and limit the lock tongue in the lock catch shell so as to be convenient for disassembling, the surface of one side of the lock catch shell, which is far away from the movable plate, is sunken in the lock catch shell to form a second notch, one side of the lock tongue, which is far away from the movable plate, is provided with a rotating deflector rod for limiting the position of the lock tongue, and the rotating deflector rod extends out of the lock catch shell from the second notch.

Preferably, the rotary deflector rod is rotatably connected with the lock tongue, and the rotary deflector rod is provided with at least two different sizes in the rotating direction, so that the rotary deflector rod can be respectively abutted against one side, away from the base, of the second notch at two positions with different sizes, and the position of the lock tongue extending out of the lock catch shell and the position of the lock tongue retracting into the lock catch shell are limited.

For the upset of restriction fly leaf, be provided with the limit stop who is used for restricting the fly leaf upset on the base, limit stop includes that the dog is protruding, have the third breach that can supply the protruding card of dog to go into in the connection pivot of fly leaf.

Preferably, the stopper protrusion is located in the base, the limit stopper can retract into the base to separate the stopper protrusion from the third notch, or partially extend out of the base to clamp and match the stopper protrusion with the third notch, and the limit stopper keeps a trend that part of the stopper protrusion extends out of the base.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides an applied range hood as above anticreep couple subassembly, includes the range hood body as the suspended object, the range hood body includes the fan frame, the fan frame includes backplate, its characterized in that: the back plate is provided with a hanging hole for the lock catch to pass through, and the lock plate is positioned above the base.

According to one aspect of the invention, the locking plate is arranged on the hanging plate, and the rear plate is also provided with a locking plate through hole for the locking plate to pass through.

According to another aspect of the invention, the lock plate is arranged on the back plate, the limit plates are arranged on the back plate and below the lock plate at intervals, when the lock catch comprises the one-way baffle, the gap between the limit plates and the one-way baffle in a self-locking state is a, the distance of the lock tongue extending out of the lock catch shell is h, and a is more than h.

According to another aspect of the invention, the lock plate is arranged on the back plate, a limiting hole is formed in the back plate and below the lock plate, when the lock catch comprises the one-way baffle, the one-way baffle can be inserted into the limiting hole in a self-locking state, a gap between the lower edge of the limiting hole and the lower surface of the one-way baffle is b, and the distance of the lock tongue extending out of the lock catch shell is h and meets the condition that a is less than h.

For further preventing the extractor hood from unhooking, the upper edge of the hanging hole on the rear plate is provided with a roller, the rotating shaft of the roller extends in the left-right direction, and the roller can be supported between the upper surface of the base and the movable plate in a locking and self-locking state.

Compared with the prior art, the invention has the advantages that: the base, the turnable movable plate and the retractable lock tongue are arranged, so that the range hood can be conveniently locked with a suspended object (a range hood) to prevent the range hood from falling off due to being lifted, the lock tongue can be limited in the processes of hanging and dismantling, the lock tongue can be prevented from influencing the dismantling on the premise of not applying external force, and the operation is convenient; when the range hood is installed, the range hood can be pushed into place horizontally, so that the seamless installation of the range hood and the cabinet can be realized.

Drawings

FIG. 1 is a schematic view of a range hood according to a first embodiment of the present invention;

FIG. 2 is an enlarged view of a portion I of FIG. 1;

FIG. 3 is a schematic view of the hidden hook of FIG. 2;

FIG. 4 is a schematic view of an anti-drop hook assembly of the range hood according to the first embodiment of the present invention;

fig. 5 is an exploded view of the lock catch of the anti-drop hook assembly according to the first embodiment of the range hood of the present invention;

FIG. 6 is a schematic view of an alternative embodiment of the latch plate via of FIG. 2;

FIG. 7 is a cross-sectional view of a range hood of the first embodiment of the present invention;

FIG. 8 is an enlarged view of portion II of FIG. 7;

FIG. 9 is a partial cross-sectional view of the range hood of the first embodiment of the present invention in an initial state when installed;

FIG. 10 is a partial cross-sectional view of a first step of an on-hook during installation of the range hood of the present invention;

FIG. 11 is a second step partial cross-sectional view of an on-hook during installation of the range hood of the first embodiment of the present invention;

FIG. 12 is a third step partial cross-sectional view of the on-hook during installation of the range hood of the present invention;

FIG. 13 is a partial cross-sectional view of the fourth step of the on-hook during installation of the range hood of the present invention;

FIG. 14 is a partial cross-sectional view of the first embodiment of the extractor hood of the present invention in an on-hook self-lock configuration during installation;

FIG. 15 is a partial cross-sectional view of the range hood in a fully installed, self-locking configuration in accordance with the first embodiment of the present invention;

figure 16 is a partial cross-sectional view of a first step of unlocking the first embodiment of the range hood of the present invention;

FIG. 17 is a second step unlocked partial cross-sectional view of the range hood of the first embodiment of the present invention;

FIG. 18 is a first step sectional view of the extractor with a range hood in accordance with the first embodiment of the present invention;

FIG. 19 is a second step partial cross-sectional view of the extractor with the first embodiment of the range hood of the present invention;

FIG. 20 is a third step partial cross sectional view of the extractor of the first embodiment of the range hood of the present invention;

FIG. 21 is a fragmentary sectional view showing the resetting of the range hood according to the first embodiment of the present invention;

FIG. 22 is a schematic view of a range hood in accordance with a second embodiment of the present invention;

FIG. 23 is an enlarged view of a portion III of FIG. 22;

FIG. 24 is a schematic view of the hidden hook of FIG. 23;

FIG. 25 is a schematic view of an anti-drop hook assembly of a second embodiment of the range hood of the present invention;

fig. 26 is an exploded view of the lock catch of the anti-drop hook assembly according to the second embodiment of the range hood of the present invention;

FIG. 27 is a partial cross-sectional view of a second embodiment of the range hood of the present invention in a self-locking position;

fig. 28 is a partial cross-sectional view of an unlocked state of the second embodiment of the range hood of the present invention;

fig. 29 is a partial schematic view of a range hood according to a third embodiment of the present invention;

fig. 30 is a partial sectional view of a third embodiment of the range hood of the present invention in a self-locking state.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1 to 4, a range hood comprises a range hood body and an anti-drop hook assembly, wherein the anti-drop hook assembly comprises a hanging plate 1 and a hook 2, and the range hood body comprises a fan frame 3. The fan frame 3 comprises a rear plate 31, and the position of the rear plate 31 close to the top is hung on the anti-falling hook assembly, so that the range hood is installed.

For convenience of description, the direction indicated by the arrow in fig. 2 is used for limitation, but the technical solution is not limited thereto. The first direction X, the second direction Y and the third direction Z are mutually perpendicular in pairs, the first direction X is the up-down direction, the second direction Y is the left-right direction and the third direction Z is the front-back direction in the installation state that the extractor hood body is hung on the anti-falling hook assembly.

Couple 2 is including setting up hasp 21 and the jam plate 22 on link plate 1, in this embodiment, for making articulate stably, couple 2 has about two of interval arrangement, jam plate 22 corresponds with every hasp 21, sets up one of them side of hasp 21 on first direction X, like the top of link plate 1, when the mounted state, jam plate 22 is the plate that extends forward by link plate 1 top, and couple 2 sets up the front side at link plate 1. The locking plate 22 is provided with a locking hole 221.

The rear plate 31 of the fan frame 3 is provided with a hanging hole 311 and a locking plate via hole 312, the hook 2 can stably hang the range hood by passing through the hanging hole 311 and the locking plate via hole 312, the hanging hole 311 and the locking plate via hole 312 are independent from each other, and the locking plate via hole 312 is arranged above the hanging hole 311. The rear plate 31 and the upper edge of the hanging hole 311 are provided with rollers 32, two ends of the rollers 32 are respectively connected with the rear plate 31 in a rolling manner, and the rotating shaft of the rollers 32 extends in the left-right direction. Alternatively, referring to fig. 6, the locking plate via 312 may be a notch formed by the top end of the hanging hole 311 being depressed upward. The directions of all the components on the fan frame 3 are limited and are all the directions in the installation state.

Referring to fig. 2, 4, 5 and 9, the locker 21 includes a base 211, a movable plate 212, a one-way stopper 213, a locker housing 214, a locking tongue 215, a rotary lever 216 and a limit stopper 217 provided on the peg board 1. The following description will be made for the orientation of the latch 21 before initial installation or in the reset state, unless otherwise specified. A surface (upper surface in a mounted state) of the base 211 on one side in the first direction X is recessed into the base 211 along the first direction X to form a groove 2111, the surface of the base 211 faces the lock plate 22 to form a bearing surface, and the base 211 as a whole forms a bearing portion. One end of the movable plate 212 and two sides of the movable plate 212 in the second direction Y are respectively rotatably connected to the corresponding inner sidewall of the groove 2111 through a connecting shaft 2121, the other end of the movable plate 212 extends out of the base 211, and the connecting shaft 2121 of the movable plate 212 extends in the second direction Y. At least one side of the groove 2111 in the second direction Y protrudes into the groove 2111 along the second direction Y to form a bearing table 2112, a corresponding side of the movable plate 212 is supported on the bearing table 2112, and a first torsion spring 2122 is provided on a connecting rotating shaft 2121 connected with the groove 2111 at the opposite side of the movable plate 212, so that the movable plate 212 keeps a tendency of being turned in a (upward) direction of the locking plate 22. The pressure-bearing platform 2112 is arranged to prevent the movable plate 212 from turning in a direction away from the locking plate 22 when the movable plate 212 extends along the third direction Z (is in a horizontal state), and to bear a force from the movable plate 212 when the whole extractor hood body is hung on the movable plate 212 when the extractor hood body is hung on a hook.

The movable plate 212 is provided with a first notch 2123 penetrating through two opposite surfaces of the movable plate 212 in the first direction X at a position away from the base 211, the latch housing 214 is disposed on a portion of the movable plate 212 located outside the base 21, and the latch bolt 215 is partially disposed in the latch housing 214 and partially extends out of the latch housing 214. A first return spring 2151 is disposed within the latch housing 214 and around the periphery of the latch tongue 215 to maintain the tendency of the latch tongue 215 to extend out of the latch housing 214 in a direction away from the base 21. The first return spring 2151 is not limited to be disposed in such a manner as to keep the latch tongue 215 as above. The movable plate 212 extends in a direction away from the hanging plate 1 along the third direction Z, the latch housing 214 is disposed on a side of the movable plate 212 away from the locking plate 22 in the first direction X, and the latch tongue 215 keeps a tendency to extend out of the latch housing 214 along the third direction Z. The latch 21 is disposed on one side of the hanging plate 1 in the third direction Z, and when the movable plate 212 is flipped to extend in the first direction X, the latch housing 214 and the hanging plate 1 are respectively located on both sides of the movable plate 212.

The one-way blocking plate 213 is rotatably connected to a side of the latch bolt 215 close to the movable plate 212, and the one-way blocking plate 213 can pass through the latch housing 214 and the first notch 2123 of the movable plate 212 along the first direction X. The rotation axis of the one-way blocking plate 213 extends in the second direction Y, and a second torsion spring 2131 is disposed on the axis of the one-way blocking plate 213 connected to the latch bolt 215, so that the one-way blocking plate 213 keeps a tendency of passing through the first notch 2123 to form an angle, preferably a perpendicular angle, with the movable plate 212.

The surface of the locking housing 214 away from the side of the movable plate 212 is recessed into the locking housing 214 along the first direction X to form a second notch 2141. The rotation lever 216 is disposed on a side of the latch tongue 215 away from the movable plate 212 and extends out of the latch housing 214 from the second notch 2141 along the first direction X. The rotary lever 216 is rotatably connected to the latch bolt 215, the axis of rotation of which extends in the first direction X. A stop piece and the like can be arranged at the connection position of the rotating shift lever 216 and the lock tongue 215 to limit the relative position of the rotating shift lever 216 and the lock tongue 215 in the first direction X and prevent the rotating shift lever 216 from falling off from the lock tongue 215. Meanwhile, since the rotary shift lever 216 extends out of the latch housing 214, the position of the latch bolt 215 extending out of the latch housing 214 can be limited, and the latch bolt 215 is prevented from being separated from the latch housing 214. The rotary toggle 216 is flat and has two opposite first faces 2161 and two opposite second faces 2162, the maximum distance between the two first faces 2161 is larger than the maximum distance between the two second faces 2162, and the maximum distance between the two first faces 2161 is matched with the size of the second notch 2141 of the latch housing 214 in the third direction Z, so that when the first faces 2161 extend along the third direction Z, defined as a transverse state, the latch bolt 215 can extend out of the latch housing 214 under the action of the first return spring 2151, and when the rotary toggle 216 is rotated by a certain angle, in this embodiment 90 degrees, the first faces 2161 extend along the second direction Y, defined as a longitudinal state, the rotary toggle 216 is almost completely engaged in the second notch 2141, the latch bolt 215 is retracted in the latch housing 214 and is determined not to extend out of the latch housing 214 under the action of the first return spring 2151, the "retracted" is not limited to the state where the latch tongue 215 is completely disposed within the latch housing 214, but is relatively retracted within the latch housing 214, i.e., allowed to partially extend outside the latch housing 214. Of course, the rotary shift lever 216 may have other zigzag structures or irregular shapes, as long as the rotary shift lever 216 has at least two different sizes in the rotation direction, so that the rotary shift lever 216 can abut against the side of the second notch 2141 away from the base 211 at two positions with different sizes, thereby limiting the latch bolt 215 at different positions.

The limit stopper 217 is provided on the base 211 adjacent to the groove 2111 in the second direction Y. The limit stop 217 is located partially on a side of the base 211 facing the locking plate 22 and extends partially into the base 211. Referring to fig. 12, the limit stop 217 may be provided with a second return spring 2171 between an end inside the base 211 and the base 211 such that the limit stop 217 maintains a tendency to extend out of the base 211 at least partially toward the lock plate 22 in the first direction X. Preferably, the top surface of the limit stopper 217 is inclined upward from front to rear. The limit stop 217 is located at a portion of the base 211, and a side away from the hanging plate 1 is provided with a stop protrusion 2172 extending in a direction away from the hanging plate 1, and a third notch 2124 matched with the stop protrusion 2172 is provided on a connecting rotating shaft 2121 of the movable plate 212 connected with the base 211. When the stopper protrusion 2172 is caught in the third indentation 2124, it is possible to define the position of the limit stopper 217 and the state (horizontal state) of the movable plate 212 at the same time.

Referring to fig. 9, in an initial state, the anti-slip hook assembly is installed at a proper position on the wall, and the locking plate 22 is located above the latch 21, hereinafter, the process of hanging and dismounting will be described with the orientation of this installation state, the hook 2 is adjusted to a horizontal position, that is, the upper surface of the base 211, the locking plate 22, the upper surface of the movable plate 212, etc. are horizontal, the rotary rod 216 is shifted to a horizontal position to abut against the front side of the second notch 2141 of the latch housing 214, the latch tongue 215 is partially ejected out of the latch housing 214 forward under the action of the first return spring 2151, and the one-way baffle 213 abuts against the front side of the first notch 2123 of the movable plate 212.

Referring to fig. 10, when the range hood is hung on the hook 2, the range hood body is pushed horizontally backwards, the upper end of the one-way baffle 213 contacts the roller 32 on the fan frame 3, and the one-way baffle 213 is gradually turned backwards under the pushing of the roller 32 until the upper end is flush with the movable plate 212.

Referring to fig. 11, the range hood body is continuously pushed backwards, the one-way baffle 213 is separated from the roller 32, the one-way baffle 213 is reset to the vertically upward state under the action of the second torsion spring 2131, and at this time, if the range hood body moves outwards, the range hood body can be shielded and limited by the one-way baffle 213, so that the range hood body is prevented from falling off when hanging.

Referring to fig. 12, the range hood body is pushed backward, the locking plate 22 of the hook 2 passes through the locking plate through hole 312 on the fan frame 3, and the roller 32 abuts against the limit stop 217 and is supported on the base 211.

Referring to fig. 13, as the range hood body is further pushed backward, the limit stopper 217 is compressed by the roller 32 to be retracted into the base 211, and the second return spring 2171 is compressed, whereby the stopper protrusion 2172 of the limit stopper 217 is separated from the third indentation 2124 of the movable plate 212.

Referring to fig. 14, once the stopper protrusion 2172 of the limit stopper 217 is separated from the third notch 2124 of the movable plate 212, the limit stopper 217 and the movable plate 212 lose the limit, and the movable plate 212 is turned up to the vertical state in the direction indicated by the arrow by the first torsion spring 2122.

Referring to fig. 7, 8 and 15, the movable plate 212 is turned to drive the locking housing 214 and the locking tongue 215 to turn upwards, so that the locking tongue 215 is locked in the locking hole 221 of the locking plate 22 to complete on-hook self-locking, and at this time, the roller 32 is located in the area enclosed by the base 211 and the movable plate 212 and cannot be separated (the groove 2111 of the base 211 does not penetrate through the rear side of the base 211, so that the roller 32 is clamped between the rear side wall of the base 211 and the movable plate 212), that is, the extractor hood body cannot be unhooked. Because the range hood body is heavy, especially can produce self-excited vibration in the use, self-excited vibration easily makes the stress part produce fatigue, and the bearing part material that base 211 constitutes uses thickly and laminates with link plate 1 (the arm of force is short promptly), can realize bearing range hood body complete machine weight and vibration for a long time.

Referring to fig. 16, when unlocking is desired, the rotary toggle 216 is first toggled downward (toward the base 211) to retract the latch bolt 215 into the latch housing 214 and out of engagement with the latch plate 22. Referring to fig. 17, after the latch bolt 215 is retracted, the rotary lever 216 is rotated by 90 degrees such that the upper end of the rotary lever 216 abuts against the upper side of the second notch 2141 of the locker housing 214, and the latch bolt 215 is restricted in the retracted state due to the increased length of the rotary lever 216 in the movement direction of the latch bolt 215, thereby completing unlocking.

Referring to fig. 18, after unlocking, the range hood body is translated forward, and the movable plate 212 is turned downward to be horizontal along the direction indicated by the arrow under the action of the horizontal thrust.

Referring to fig. 19, the range hood body continues to translate forward, the roller 32 is separated from the load-bearing portion of the base 211, the limit stop 217 is bounced, and the stop protrusion 2172 is engaged with the third notch 2124 of the movable plate 212, so that the movable plate 212 is kept in a horizontal state.

Referring to fig. 20, the range hood body continues to move forward, and the one-way baffle 213 is driven by the roller 32 to turn downward until the upper end is flush with the movable plate 212.

Referring to fig. 21, the extractor hood body is separated from the hook 2, and the one-way baffle 213 of the hook 2 is reset.

As can be seen from the above, when the latch bolt 215 extends out of the latch housing 214, the one-way blocking plate 213 is attached to the front end of the first notch 2123 of the movable plate 212, i.e. it can only turn backwards, so that in the process of hanging up, the whole machine turns backwards when hanging up the hook 2, and when moving out by mistake, the whole machine is blocked unidirectionally and cannot move outwards, thereby preventing the whole machine from unhooking. When the latch 215 retracts into the latch housing 214, the one-way blocking plate 213 is attached to the rear end of the first notch 2123 of the movable plate 212, i.e. the plate can only be turned over forward, so that the whole extractor hood body can be moved outward and detached and can be separated from the hook 2.

In the installation process, the anti-drop hook assembly is hung in the range hood body in a translation mode, so that the range hood body and the suspended ceiling can be installed and detached seamlessly.

Example two

Referring to fig. 22 to 26, the present embodiment is different from the first embodiment in that the locking plate 22 of the hook 2 is disposed on the rear plate 31 of the fan frame 3 above the hanging hole 311. The process of hanging up, unlocking and hanging up is the same as the first embodiment.

In addition, the hook 2 further includes a limiting plate 23 spaced below the locking plate 22 on the back plate 31, referring to fig. 27, a gap between the limiting plate 23 and the one-way blocking plate 213 in the self-locking state is a (gap in the vertical direction), and a distance that the latch bolt 215 extends out of the latch housing 214 is h, which is required to satisfy a < h. When the range hood body is lifted by mistake, the limiting plate 23 is abutted against the one-way baffle 213, so as to prevent the whole range hood from being lifted. Referring to fig. 28, when the rotary shift lever 216 moves downward to retract the latch bolt 215, the one-way baffle 213 is abutted against the position-limiting plate 23 during the moving process and then turns over, and the position-limiting plate 23 does not play a position-limiting role at this time, i.e., the position-limiting plate 23 does not play a position-limiting role during the unlocking and dismantling processes.

EXAMPLE III

Referring to fig. 29 and 30, the present embodiment is different from the second embodiment in that the roller 32 on the back plate 31 is eliminated and hung on the load-bearing part directly from the upper edge of the hanging hole 311 of the back plate 31. The processes of hanging up, unlocking and hanging up are the same as the embodiment.

In addition, the hook 2 further comprises a limiting hole 24 formed in the rear plate 31 and located below the locking plate 22, and the limiting hole is used for being matched with the one-way baffle 213. In the self-locking state, the one-way baffle 213 can be inserted into the limiting hole 24, the gap between the lower edge of the limiting hole 24 and the lower surface of the one-way baffle 213 is b (the gap in the vertical direction), the distance that the lock tongue 215 extends out of the lock buckle housing 214 is h, and a is required to be less than h. When the range hood body is lifted by mistake, the limiting hole 24 limits the position of the one-way baffle 213, so as to prevent the whole range hood from being lifted.

In addition, the anti-drop hook assembly can also be used for other objects needing to be hung, such as a display, a television and the like.

Claims

1. The utility model provides an anticreep couple subassembly, includes link plate (1) and couple (2), its characterized in that: the hook (2) comprises a lock catch (21) arranged on the hanging plate (1) and a lock plate (22) arranged at an interval with the lock catch (21) in the first direction (X), and a lock hole (221) is formed in the lock plate (22);

the lock catch (21) comprises a base (211) serving as a bearing part for hanging a hanging object, a movable plate (212), a lock catch shell (214) and a lock tongue (215), wherein one side surface, facing the lock plate (22), of the base (211) is recessed into the base (211) along a first direction (X) to form a groove (2111), one end of the movable plate (212) is rotatably connected with the groove (2111) through a connecting rotating shaft (2121), the other end of the movable plate extends out of the base (211) in a direction far away from the hanging plate (1), the connecting rotating shaft (2121) extends in a second direction (Y), and the movable plate (212) keeps a tendency of turning towards the lock plate (22) to extend in the first direction (X);

The lock catch shell (214) is arranged on the part of the movable plate (212) extending out of the base (211), and the bolt (215) is at least partially arranged in the lock catch shell (214) and keeps the trend of extending out of the lock catch shell (214) in the direction away from the base (211);

the lock catch (21) is arranged on one side of the hanging plate (1) in the third direction (Z), when the movable plate (212) is turned over to extend in the first direction (X), the lock catch shell (214) and the hanging plate (1) are located on two sides of the movable plate (212), and the lock tongue (215) is inserted into the lock hole (221) of the lock plate (22) to realize self-locking;

the first direction (X), the second direction (Y) and the third direction (Z) are mutually vertical in pairs.

2. The drop off prevention hook assembly as defined in claim 1, wherein: the groove (2111) protrudes into the groove (2111) along the second direction (Y) at least at one side in the second direction (Y) to form a bearing table (2112), and the corresponding side of the movable plate (212) is supported on the bearing table (2112).

3. The drop off prevention hook assembly as defined in claim 1, wherein: a first notch (2123) penetrating through the movable plate (212) is formed in the position, away from the base (211), of the movable plate (212), a one-way baffle (213) is rotatably connected to one side, close to the movable plate (212), of the bolt (215), a rotating shaft of the one-way baffle (213) extends in the second direction (Y), and the one-way baffle (213) keeps a trend of penetrating through the lock catch shell (214) and the first notch (2123) in the movable plate (212); when the bolt (215) extends out of the lock housing (214), the one-way blocking plate (213) is attached to one end, away from the base (211), of the first notch (2123) of the movable plate (212) and can only turn towards the base (211), and when the bolt (215) retracts into the lock housing (214), the one-way blocking plate (213) is attached to one end, close to the base (211), of the first notch (2123) of the movable plate (212) and can only turn towards the direction away from the base (211).

4. The drop off prevention hook assembly as defined in claim 1, wherein: the surface of one side, away from the movable plate (212), of the lock catch shell (214) is recessed into the lock catch shell (214) to form a second notch (2141), a rotating shifting rod (216) used for limiting the position of the lock tongue (215) is arranged on one side, away from the movable plate (212), of the lock tongue (215), and the rotating shifting rod (216) extends out of the lock catch shell (214) from the second notch (2141).

5. The drop off prevention hook assembly of claim 4, wherein: the rotary deflector rod (216) is rotatably connected with the lock tongue (215), and the rotary deflector rod (216) has at least two different sizes in the rotating direction, so that the rotary deflector rod (216) can be respectively abutted against one side, away from the base (211), of the second notch (2141) at two positions with different sizes, and the position, extending out of the lock catch shell (214), of the lock tongue (215) and the position, retracting into the lock catch shell (214), of the lock tongue (215) are limited.

6. The drop off prevention hook assembly as defined in claim 1, wherein: the base (211) is provided with a limit stopper (217) for limiting the turning of the movable plate (212), the limit stopper (217) comprises a stopper protrusion (2172), and a third notch (2124) into which the stopper protrusion (2172) can be clamped is formed in the connecting rotating shaft (2121) of the movable plate (212).

7. The drop off prevention hook assembly of claim 6, wherein: the stop protrusion (2172) is located within the base (211), the limit stop (217) is retractable into the base (211) to disengage the stop protrusion (2172) from the third indentation (2124) and is also partially extendable out of the base (211) to snap fit the stop protrusion (2172) into the third indentation (2124), and the limit stop (217) maintains a tendency to partially extend out of the base (211).

8. A range hood applying the anti-drop hook assembly as claimed in any one of claims 1 to 7, comprising a range hood body as a suspension, wherein the range hood body comprises a fan frame (3), the fan frame (3) comprises a back plate (31), and the range hood is characterized in that: the rear plate (31) is provided with a hanging hole (311) for the lock catch (21) to pass through, and the lock plate (22) is positioned above the base (211).

9. The range hood of claim 8, wherein: the lock plate (22) is arranged on the hanging plate (1), and a lock plate through hole (312) for the lock plate (22) to pass through is further formed in the rear plate (31).

10. The range hood of claim 8, wherein: the jam plate (22) sets up on backplate (31), be located jam plate (22) below interval and be provided with limiting plate (23), when hasp (21) include one-way baffle (213), limiting plate (23) and one-way baffle (213) clearance under the auto-lock state be an, and the distance that spring bolt (215) stretched out hasp casing (214) is h to satisfy an and < h.

11. The range hood of claim 8, wherein: the utility model discloses a lock, including back plate (31), jam plate (22), spacing hole (24) have been seted up to back plate (31) upper, lie in jam plate (22) below, when hasp (21) include one-way baffle (213), one-way baffle (213) can insert in spacing hole (24) when auto-lock state, the lower border of spacing hole (24) and the clearance between the lower surface of one-way baffle (213) are b, the distance that spring bolt (215) stretched out hasp casing (214) is h to satisfy a < h.

12. The range hood of claim 9 or 10, wherein: the rear plate (31) is provided with a roller (32) at the upper edge of the hanging hole (311), the rotating shaft of the roller (32) extends in the left-right direction, and the roller (32) can be supported between the upper surface of the base (211) and the movable plate (212) in a self-locking state of the lock catch (21).