CN111006280B - Anti-falling hook assembly and range hood with same - Google Patents
Anti-falling hook assembly and range hood with same Download PDFInfo
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- CN111006280B CN111006280B CN202010006613.1A CN202010006613A CN111006280B CN 111006280 B CN111006280 B CN 111006280B CN 202010006613 A CN202010006613 A CN 202010006613A CN 111006280 B CN111006280 B CN 111006280B
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- link plate
- casing
- range hood
- elastic sheet
- return spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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Abstract
The invention discloses an anti-drop hook component, which comprises a hanging plate and a lock catch arranged on the hanging plate, the lock catch comprises a shell body, a rotating part, a limiting block, an elastic sheet and a deflector rod which are fixedly connected with the hanging plate, the top surface of the shell is recessed downwards to form a groove, the spring plate is arranged in the groove, the deflector rod extends upwards out of the shell from the groove, the limiting block is at least partially arranged in the groove, the upper part of the elastic sheet is fixedly connected with the shifting lever, the bottom of the elastic sheet can be clamped or separated from the limiting block through deformation, the rotating part is rotatably arranged on one side of the shell far away from the hanging plate, when the rotating part transversely extends, the top surface of the rotating component is sunken downwards to form a first gap, the bottom surface of the rotating component is sunken upwards to form a second gap, the stopper keeps the trend of going into first breach or second breach, rotary part keeps the trend that makes stopper and second breach block. Also discloses a range hood with the anti-drop hook component.
Description
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 the link plate, its characterized in that: the lifting hook comprises a shell, a rotating part, a limiting block, an elastic sheet and a lifting lever, wherein the shell, the rotating part, the limiting block, the elastic sheet and the lifting lever are fixedly connected with the hanging plate, a groove is formed in the top surface of the shell in a downward sunken mode, the elastic sheet is arranged in the groove, the lifting lever extends out of the shell from the groove upwards, at least part of the limiting block is arranged in the groove, the upper portion of the elastic sheet is fixedly connected with the lifting lever, the bottom of the elastic sheet can be clamped or separated from the limiting block through deformation, the elastic sheet keeps the trend of moving towards the direction away from the hanging plate, the rotating part is rotatably arranged on one side, far away from the hanging plate, of the shell and can be in a state of transverse extension or longitudinal extension, when the rotating part transversely extends, the top surface of the rotating part is downwards sunken to form a first notch, the bottom surface of the rotating part upwards sunken to form a second notch, the limiting block keeps moving out of the shell towards the direction away from the hanging plate and can be clamped into the trend of the first notch or the second notch, the rotating component keeps rotating to a longitudinal extending state, so that the limiting block tends to be clamped with the second notch.
Preferably, for the cooperation of shell fragment and stopper, the stopper is close to the position towards link plate one side and from top to bottom caves in and forms the spacing groove, the spacing inslot and with the stopper block or break away from the spacing groove can be arranged in to the bottom of shell fragment.
Preferably, the hasp is still including setting up at the shell fragment and being close to the first reset spring between link plate one side with the casing, set up at the stopper and be close to the second reset spring between link plate one side towards link plate one side and casing, first reset spring makes the shell fragment keep the trend to keeping away from link plate direction removal, second reset spring makes the stopper keep the trend to keeping away from link plate direction removal.
In order to facilitate the arrangement of the first reset spring, a positioning shaft which is close to one side of the hanging plate and extends to the side far away from the hanging plate is arranged in the shell, the positioning shaft penetrates through the elastic piece deflector rod, and the first reset spring is sleeved on the positioning shaft.
In order to automatically separate the limiting block from the first notch of the rotating part during installation, the rotating part is clamped with the lock rod, and the range hood body is prevented from being lifted upwards and unhooked outwards; the limiting block automatically resets and is clamped with the second notch of the rotating part to prevent the rotating part from rotating by mistake, and the elastic force generated by the deformation of the elastic sheet is F0The projection of the deformation amount of the elastic sheet in the vertical direction is H, and the projection of the superposed surface of the elastic sheet and the top of the limiting groove of the limiting block, which faces the hanging plate, in the vertical direction is H; the total stroke of the deflector rod is B; when the limiting block is just pressed into the shell, the deformation amount of the first return springIs a1The deformation amount of the second return spring is a2At this time, the elastic force of the second return spring is F2＝K2*a2，K2Is the elastic coefficient of the second return spring and satisfies F0＞F2、a1< B; when H is H, the deformation amount of the first return spring is b1The deformation amount of the second return spring is b2At this time, the elastic force of the second return spring is F2＝K2*b2And satisfy F2≥FH、b1≤B，FHThe projection of the deformation of the elastic sheet in the vertical direction is H.
In order to ensure that the limiting block can be manually pressed back into the shell during disassembly, the elastic sheet can be automatically reset into the limiting groove, the next installation is convenient, when the elastic sheet is contacted with the limiting groove of the limiting block towards the top of one side of the hanging plate, the elastic force of the first reset spring is F1And satisfy F1≥FH。
For the relative casing of rotary part rotates, and keep longitudinal extension state for being convenient for, the storage tank has been seted up in the casing, the storage tank extends and runs through the casing and keep away from one side of link plate from being close to link plate department to the direction of keeping away from the link plate, rotary part is provided with the pivot towards one side of casing, be provided with the torsional spring in the pivot, the pivot penetrates in the storage tank of casing and rotate the connection, the tip of torsional spring and the wall butt of storage tank for rotary part keeps the trend of rotating to longitudinal extension.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides an be applied to range hood as above anticreep couple subassembly, includes the range hood body, the range hood body includes the fan frame, the fan frame includes the back plate, its characterized in that: the position that the back plate is close to the top sets up the hanging hole that supplies the casing to pass, rotary part's length is greater than the height of hanging hole, the back plate front surface is provided with the locking lever that extends forward, rotary part keeps rotating to longitudinal extension, thereby makes the trend of first breach and locking lever locking.
In order to facilitate the clamping of the guide rotating component and the lock rod, one side of the first notch adjacent to the lock rod is bent downwards to form a guide surface.
Compared with the prior art, the invention has the advantages that: the rotating part, the limiting block, the elastic sheet and the deflector rod are arranged, so that the rotating part and an object to be hung (a range hood) can be conveniently locked, the object to be hung (the range hood) is prevented from being lifted and falling off, the rotating part for locking can be limited in the dismounting process, the dismounting can be prevented from being influenced 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 an embodiment of the present invention in a locked state;
fig. 2 is a schematic view of an unlocked state of the extractor hood according to the embodiment of the present invention;
fig. 3 is a schematic view of a range hood body according to an embodiment of the present invention;
FIG. 4 is a schematic view of an anti-slip hook assembly according to an embodiment of the present invention;
FIG. 5 is an exploded view of the latch of the anti-slip hook assembly according to the embodiment of the present invention;
FIG. 6 is a partial cross-sectional view of an unlocked condition of the anti-drop hook assembly of an embodiment of the present invention;
FIG. 7 is a partial cross-sectional view of the locking condition of the anti-drop hook assembly of the embodiment of the present invention;
FIG. 8 is a partial cross-sectional view of a first step in the installation of a range hood in accordance with an embodiment of the present invention;
FIG. 9 is a second partial sectional view of the range hood assembly of the present invention;
FIG. 10 is a third step partial cross-sectional view of the installation of a range hood in accordance with an embodiment of the present invention;
FIG. 11 is a partial cross-sectional view of a first step of removing the range hood in accordance with the exemplary embodiment of the present invention;
FIG. 12 is a second partial sectional view of the extractor hood of an embodiment of the present invention during disassembly;
FIG. 13 is a third step partially cut away view of the disassembled extractor hood in accordance with the exemplary embodiment of the present invention;
fig. 14 is a partial sectional view of the range hood according to the fourth step of detaching the range hood;
FIG. 15 is a schematic diagram illustrating a state before and after deformation of an elastic piece of the anti-drop hook assembly according to the embodiment of the invention;
fig. 16 is a schematic view of the locking and unlocking state of the anti-drop hook assembly according to the embodiment of the invention.
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.
Referring to fig. 1 to 4, the 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 lock catch 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.
The rear plate 31 of the fan frame 3 is provided with a hanging hole 311, and the lock catch 2 can pass through the hanging hole 311 to stably hang the range hood. A forwardly extending latch bar 312 is provided on the front face (the face which faces the user in use) of the rear panel 31.
Referring to fig. 5 to 7, the latch 2 includes a housing 21, a rotating member 22, a stopper 23, a spring plate 24, and a lever 25. The shell 21 is box-shaped and is fixedly connected with the hanging plate 1. The top surface of the shell 21 is recessed downwards to form a groove 211, the elastic sheet 24 is arranged in the groove 211, the shift lever 25 extends upwards from the groove 211 to the outside of the shell 21, and the limit block 23 penetrates out of the shell 21 from the side away from the hanging plate 1 in the groove 211. The left and right sides of the shift lever 25 are recessed toward the center to form guide grooves 251 capable of being engaged with corresponding positions of the top surface of the housing 21, thereby guiding the movement of the shift lever 25. The position of the limiting block 23 close to one side facing the hanging plate 1 is recessed from top to bottom to form a limiting groove 231, the bottom of the elastic sheet 24 is arranged in the limiting groove 231, and the upper portion of the elastic sheet 24 is fixedly connected with the shifting rod 25. The top of the limiting block 23, which is located at one side of the limiting groove 231 facing the hanging plate 1, extends downwards in an inclined manner towards the direction of the hanging plate 1.
The latch 2 further comprises a fixing plate 26, a groove 211 penetrates through the shell 21 towards one side of the hanging plate 1, and the fixing plate 26 is arranged at the position where the groove 211 penetrates through the shell 21 and is embedded in the hanging plate 1. A positioning shaft 27 is arranged between the fixing plate 26 and the wall surface of the groove 211 far away from one side of the hanging plate 1, the positioning shaft 27 penetrates through the shifting rod 25 and the elastic sheet 24, a first return spring 281 is arranged between the elastic sheet 24 and the fixing plate 26, the first return spring 281 is sleeved on the positioning shaft 27, and a second return spring 282 is arranged between one side of the limiting block 23 facing the hanging plate 1 and the fixing plate 26.
The top surface of the rotating component 22 is recessed downwards to form a first notch 223, and the first notch 223 is used for matching with a lock rod 312 of the range hood body. The side of the first notch 223 adjacent to the lock bar 312 is extended to be bent downward to form a guide surface 224. The bottom surface of the rotating member 22 is recessed upward to form a second notch 225. The first notch 223 and the second notch 225 on the rotating component 22 can be respectively locked with the limiting block 23, that is, the shapes of the two notches need to match the outer contour of the limiting block 23. The first notch 223 of the rotating component 22 can be locked with the lock rod 312, i.e. the shape of the first notch 223 matches the diameter of the lock rod 312.
The top surface of the housing 21, the corresponding recess 211 and the portion other than the receiving groove 212 constitute a load bearing portion. The sum of the frictional force between the range hood body and the surface of the bearing part needs to be greater than the elastic force of the first return spring 281 after the maximum compression, or the sum of the force limited by the rotating part 22 in the horizontal direction of the range hood body and the frictional force between the range hood body and the surface of the bearing part needs to be greater than the elastic force of the first return spring 281, so that the range hood body is prevented from sliding forwards and falling after being installed.
During the installation, at first with link plate 1 fixed to the wall on, hasp 2 is towards user one side, and rotary part 22 is horizontal this moment, and first breach 223 makes progress, and second breach 225 is downward, and stopper 23 is blocked in rotary part 22's first breach 223, avoids rotary part 22 to rotate and resets. Then the installation of the range hood body is carried out. Firstly, the range hood body is hung in a translation manner in the direction of the hanging plate 1 (backwards), the lock catch 2 penetrates through a hanging hole 311 of a fan frame 3 of the range hood body, and referring to fig. 8, an arrow indicates the moving direction of the range hood body; when the range hood body contacts the shift lever 25, the range hood body is continuously pushed in, so that the shift lever 25 synchronously moves, the moving direction is shown by an arrow in fig. 9, the elastic sheet 24 is driven to move, the elastic sheet 24 drives the limit block 23 to move backwards, the first return spring 281 and the second return spring 282 are compressed, meanwhile, the elastic sheet 24 deforms, the lower end of the elastic sheet bends forwards, until the limit block 23 is separated from the rotating part 22, the rotating part 22 rotates clockwise under the action of the torsion spring 222, and the first notch 223 on the rotating part is clamped with the lock lever 312; referring to fig. 10, the shift lever 25 continues to move backward under the pushing of the range hood body, at this time, the elastic force of the second return spring 282 is greater than the elastic force of the deformation of the elastic sheet 24, the stopper 23 stops moving backward, the elastic sheet 24 further deforms and finally breaks away from the stopper 23, the deformation resets, after the stopper 23 breaks away from the elastic sheet 24, the stopper 23 resets under the action of the second return spring 282, the portion of the stopper exposed out of the housing 21 is engaged with the second notch 225 of the rotating part 22, so that the rotating part 22 is limited and prevented from being rotated by mistake, the latch 2 is in a self-locking state, at this time, the range hood body cannot be detached and cannot be lifted up by mistake to get unhooked, and the rotating part 22 can also play a role in blocking the outward movement of the range hood body, thereby realizing double self-locking.
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.
When disassembly is required, referring to fig. 11, the stopper 23 is pressed backwards into the housing 21 (in the direction indicated by the arrow) to separate the stopper 23 from the rotating member 22, and then the rotating member 22 is rotated counterclockwise to separate the rotating member 22 from the lock lever 312 and align the first notch 223 with the stopper 23; referring to fig. 12, the force applied to the limit block 23 is removed, the limit block 23 is clamped with the first notch 223 of the rotating component 22 under the action of the second return spring 282, at this time, the range hood body has no outward limit, and then the range hood body can be pushed out in a forward translation manner; referring to fig. 13, in the process of the translational push-out of the range hood body, the elastic sheet 24 abuts against the top of one side of the hanging plate 1 of the limiting groove 231 of the limiting block 23, the elastic sheet 24 deforms, and an arrow indicates the translational direction of the range hood body; referring to fig. 14, the range hood body continues to be pushed out in a translation manner, as shown by an arrow, because the elastic force of the first return spring 281 is greater than the deformation elastic force of the elastic sheet 24, the elastic sheet 24 further deforms until the elastic sheet crosses over the top of the limiting groove 231 of the limiting block 23 towards one side of the hanging plate 1 and is clamped into the limiting groove 231, the reset of the latch 2 is completed, the latch 2 is in an unlocked state, and then the range hood body can be loaded again.
In the assembling and disassembling process, because the elastic sheet 24 is made of elastic material, when one end of the elastic sheet is fixed, the other end of the elastic sheet can deform when being stirred, the deformation can generate elastic force, and the elastic force is set to be F0Referring to fig. 15, the projection of the deformation amount in the vertical direction is H, the projection of the overlapping surface of the top of the limiting groove 231 of the elastic piece 24 and the limiting block 23 facing the hanging plate 1 in the vertical direction is H, that is, when H is H, the maximum deformation of the elastic piece 24 is obtained, and the elastic force at this time is FH。
The first return spring 281 has an elastic force of F according to Hooke's law1＝K1*X1In which K is1Is the elastic coefficient (also called the stiffness coefficient or stiffness coefficient), X, of the first return spring 2811The elastic force of the second return spring 282 is F for the deformation amount of the first return spring 281 and the same reason2＝K2*X2In which K is2The elastic coefficient (also referred to as the stiffness coefficient or the coefficient of stiffness), X, of the second return spring 2822Is the amount of deformation of the second return spring 282. When the stopper 23 is just pressed into the housing 21, the deformation of the first return spring 281 is a1The deformation amount of the second return spring 282 is a2(ii) a When the projection H of the deformation amount of the elastic piece 24 in the vertical direction is equal to H (i.e., the moment when the elastic piece is ready to be disengaged from the stopper 23), the deformation amount of the first return spring 281 is b1The deformation amount of the second return spring 282 is b2(ii) a The total stroke of the shift lever 25 is B, which is the maximum deformation space of the first return spring 281 as shown in fig. 16.
Thus, during installation, when the stop 23 is just submerged within the housing 21, as seen in FIGS. 8 and 9, F2＝K2*a2At this time, F is guaranteed0＞F2，a1< B (Only guarantee F)0＞F2Just ensure that the stopper 23 is shifted by the elastic sheet 24, and a1If < B, it means that the first return spring 281 has a deformation space for the following bulletThe tab 24 is ready to disengage from the stopper 23). Continuing the installation, the second return spring 282 continues to compress, F2Increases and the spring 24 deforms increasingly until H, at which time F2＝K2*b2The elastic piece 24 is ready to be separated from the limiting groove 231 of the limiting block 23, and at this time, F is required to be ensured2≥FH，b1Less than or equal to B, only ensuring F2≥FHTo ensure that the spring plate 24 can reach maximum deformation in preparation for disengagement, and b1B indicates that the first return spring 281 has a deformation space). After the elastic sheet 24 is separated from the limiting groove 231 of the limiting block 23, the limiting block 23 is reset (i.e. is engaged with the second notch 225 of the rotating component 22 after extending) under the action of the first reset spring 281, and the installation is completed.
In the process of dismounting, in the process of horizontally pushing out the range hood body, the first return spring 281 is gradually returned, and when the elastic sheet 24 contacts with the limiting groove 231 of the limiting block 23 towards the top of one side of the hanging plate 1, see fig. 13 and 14, at F1The spring plate 24 is deformed due to F1≥FHWhen the elastic sheet 24 reaches the maximum deformation, the elastic sheet is clamped into the limiting block 23, and the elastic sheet 24 resets.
By satisfying the above conditions, it is possible to realize in the installation process: the limiting block 23 is automatically separated from the first notch 223 of the rotating part 22, so that the rotating part 22 is clamped with the lock rod 312, and the range hood body is prevented from being lifted upwards and unhooked outwards; the stopper 23 automatically resets and engages with the second notch 225 of the rotating member 22, thereby preventing the rotating member 22 from being rotated by mistake (causing the lock lever 312 to fail to lock). During the disassembly process, the following steps can be realized: at the initial stage of detachment, the limiting block 23 is under the action of the force of the second return spring 282 (because of being separated from the elastic sheet 24, the limiting block 23 is not interfered by the force of the elastic sheet 24 and the first return spring 281), so that the limiting block 23 can be conveniently pressed back into the housing 21 manually; the elastic sheet 24 can be automatically reset into the limiting groove 231, so that the next installation is facilitated.
In addition, the anti-dropping hook assembly can also be used for other objects needing to be hung, such as a display, a television and the like.
Claims (9)
1. The utility model provides an anticreep couple subassembly, includes link plate (1), its characterized in that: still include hasp (2) of setting on link plate (1), hasp (2) include be connected fixed casing (21), rotary part (22), stopper (23), shell fragment (24) and driving lever (25) with link plate (1), casing (21) are used for passing hanging hole (311) of suspended object, the top surface undercut of casing (21) is formed with recess (211), recess (211) are arranged in to shell fragment (24), outside driving lever (25) upwards extend casing (21) from recess (211), recess (211) are arranged in to stopper (23) at least part, the upper portion and the driving lever (25) of shell fragment (24) are connected fixedly, the bottom of shell fragment (24) can be through deformation and stopper (23) block or break away from, shell fragment (24) keep the trend of moving to the direction of keeping away from link plate (1), rotary part (22) rotate and set up the one side of keeping away from link plate (1) at casing (21), the rotary component (22) can be in the state of horizontal extension or longitudinal extension, when rotary component (22) transversely extended, the top surface undercut of rotary component (22) is formed with first breach (223), the bottom surface undercut forms second breach (225), stopper (23) keep moving out the trend that casing (21) are gone into to the direction of keeping away from link plate (1) and can block in first breach (223) or second breach (225), rotary component (22) keep rotating to the state of longitudinal extension and make stopper (23) and second breach (225) block and make first breach (223) and the trend that the suspended object locked.
2. The drop off prevention hook assembly as defined in claim 1, wherein: the limiting block (23) is sunken from top to bottom towards one side of the hanging plate (1) to form a limiting groove (231), and the bottom of the elastic sheet (24) can be arranged in the limiting groove (231) to be clamped with the limiting block (23) or separated from the limiting groove (231).
3. The drop off prevention hook assembly as defined in claim 2, wherein: hasp (2) are still including setting up first reset spring (281) between shell fragment (24) and casing (21) are close to link plate (1) one side, set up and be close to second reset spring (282) between link plate (1) one side at stopper (23) towards link plate (1) one side and casing (21), first reset spring (281) make shell fragment (24) keep to keeping away from the trend that link plate (1) direction removed, second reset spring (282) make stopper (23) keep to keeping away from the trend that link plate (1) direction removed.
4. The drop off prevention hook assembly as defined in claim 3, wherein: be provided with in casing (21) by being close to link plate (1) one side to keeping away from locating shaft (27) that link plate one side extended, shell fragment (24) and driving lever (25) are passed in locating shaft (27), first reset spring (281) cover is established on locating shaft (27).
5. The drop off prevention hook assembly as defined in claim 3, wherein: the elastic force generated by the deformation of the elastic sheet (24) is F0The projection of the deformation amount of the elastic sheet (24) in the vertical direction is H, and the projection of the superposed surface of the elastic sheet (24) and the limiting groove (231) of the limiting block (23) towards the top of one side of the hanging plate (1) in the vertical direction is H; the total stroke of the deflector rod (25) is B; when the limiting block (23) is just pressed into the shell (21), the deformation amount of the first return spring (281) is a1The deformation amount of the second return spring (282) is a2At this time, the elastic force of the second return spring (282) is F2＝K2*a2，K2Is the elastic coefficient of the second return spring (282) and satisfies F0＞F2、a1< B; when H is equal to H, the deformation amount of the first return spring (281) is b1The deformation amount of the second return spring (282) is b2At this time, the elastic force of the second return spring (282) is F2＝K2*b2And satisfy F2≥FH、b1≤B，FHThe elastic force is the elastic force when the projection of the deformation quantity of the elastic sheet (24) in the vertical direction is H.
6. The drop off prevention hook assembly of claim 5, wherein: when the elastic sheet (24) is contacted with the top of one side of the hanging plate (1) of the limiting groove (231) of the limiting block (23), the elastic force of the first return spring (281) is F1And satisfy F1≥FH。
7. The drop-resistant hook assembly according to claim 1 or 2, wherein: set up storage tank (212) in casing (21), storage tank (212) from being close to link plate (1) and locating to the direction of keeping away from link plate (1) extend and run through one side that link plate (1) were kept away from in casing (21), rotary part (22) are provided with pivot (221) towards one side of casing (21), be provided with torsional spring (222) on pivot (221), pivot (221) penetrate in storage tank (212) of casing (21) and rotate the connection, the tip of torsional spring (222) and the wall butt of storage tank (212) for rotary part (22) keep rotating the trend to longitudinal extension.
8. A range hood applying the anti-drop hook assembly of any one of claims 1 to 7 comprises a range hood body, the range hood body comprises a fan frame (3), the fan frame (3) comprises a rear plate (31), and the range hood is characterized in that: the position that backplate (31) are close to the top offers hanging hole (311) that supplies casing (21) to pass, the length of rotary part (22) is greater than the height of hanging hole (311), backplate (31) openly is provided with locking lever (312) of forward extension, rotary part (22) keep rotating to longitudinal extension, thereby make the trend of first breach (223) and locking lever (312) locking.
9. The range hood of claim 8, wherein: the side of the first notch (223) adjacent to the lock rod (312) is bent downwards to form a guide surface (224).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010006613.1A CN111006280B (en) | 2020-01-03 | 2020-01-03 | Anti-falling hook assembly and range hood with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010006613.1A CN111006280B (en) | 2020-01-03 | 2020-01-03 | Anti-falling hook assembly and range hood with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111006280A CN111006280A (en) | 2020-04-14 |
| CN111006280B true CN111006280B (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010006613.1A Active CN111006280B (en) | 2020-01-03 | 2020-01-03 | Anti-falling hook assembly and range hood with same |
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Citations (7)
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|---|---|---|---|---|
| US3874803A (en) * | 1972-04-12 | 1975-04-01 | Svenska Flaektfabriken Ab | Swinging and locking device, particularly for vapour escape hoods at kitchen ranges |
| CN200952778Y (en) * | 2006-10-11 | 2007-09-26 | 金家宝工业有限公司 | Kitchen fumes exhauster hinging hook structure |
| EP1548369A3 (en) * | 2003-12-23 | 2011-11-16 | BSH Bosch und Siemens Hausgeräte GmbH | Connecting device for an extractor hood |
| CN103422746A (en) * | 2013-05-20 | 2013-12-04 | 宁波方太厨具有限公司 | Hinge structure and range hood smoke barrier connecting structure using same |
| CN206036557U (en) * | 2016-09-23 | 2017-03-22 | 宁波方太厨具有限公司 | Mounting bracket of wall -hanging household electrical appliances and range hood who matches with this mounting bracket |
| CN108506323A (en) * | 2017-02-28 | 2018-09-07 | 株式会社牧田 | The hook of handheld tool |
| CN209495374U (en) * | 2018-11-29 | 2019-10-15 | 华帝股份有限公司 | Hook structure for range hood and range hood |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410260B (en) * | 2013-08-01 | 2016-03-16 | 斯泰科技（杭州）有限公司 | A kind of curtain wall hook member |
| CN209706161U (en) * | 2019-01-08 | 2019-11-29 | 宁波方太厨具有限公司 | Kitchen ventilator anti-drop structure |
-
2020
- 2020-01-03 CN CN202010006613.1A patent/CN111006280B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3874803A (en) * | 1972-04-12 | 1975-04-01 | Svenska Flaektfabriken Ab | Swinging and locking device, particularly for vapour escape hoods at kitchen ranges |
| EP1548369A3 (en) * | 2003-12-23 | 2011-11-16 | BSH Bosch und Siemens Hausgeräte GmbH | Connecting device for an extractor hood |
| CN200952778Y (en) * | 2006-10-11 | 2007-09-26 | 金家宝工业有限公司 | Kitchen fumes exhauster hinging hook structure |
| CN103422746A (en) * | 2013-05-20 | 2013-12-04 | 宁波方太厨具有限公司 | Hinge structure and range hood smoke barrier connecting structure using same |
| CN206036557U (en) * | 2016-09-23 | 2017-03-22 | 宁波方太厨具有限公司 | Mounting bracket of wall -hanging household electrical appliances and range hood who matches with this mounting bracket |
| CN108506323A (en) * | 2017-02-28 | 2018-09-07 | 株式会社牧田 | The hook of handheld tool |
| CN209495374U (en) * | 2018-11-29 | 2019-10-15 | 华帝股份有限公司 | Hook structure for range hood and range hood |
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| Publication number | Publication date |
|---|---|
| CN111006280A (en) | 2020-04-14 |
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