CN209990250U - Linkage mechanism of hidden handle - Google Patents

Abstract

The utility model provides a hidden handle's interlock mechanism, the handle includes the handle body and fixing device, interlock mechanism one end with the handle body is fixed, the other end with fixing device is fixed, under the exogenic action, drives stretching out or hiding of the flexible realization handle of the handle body. The utility model provides a pair of hidden handle's interlock mechanism can make the flexible realization of handle stretch out or hide, reduces the shared space of handle, makes the whole outward appearance of the door body more pleasing to the eye.

Description

Linkage mechanism of hidden handle

Technical Field

The utility model belongs to the technical field of household electrical appliances, especially the interlock mechanism of the hidden handle of household electrical appliances.

Background

At present, most of household appliances with storage spaces, such as door handles of steam ovens and disinfection cabinets, are usually fixed on the outer surface of a door body through a handle seat, the whole handle extends out of the door body to give a sharp feeling and influence the overall appearance of the product, and when the household appliances are placed in a kitchen, the handle protruding out of the surface of the door body additionally occupies limited space of the kitchen, so that the movement space of a user in the kitchen is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses main aim at solves above-mentioned problem and not enough, provides a can drive the flexible interlock mechanism that realizes that the handle is hidden or stretch out of handle.

In order to achieve the above object, the utility model provides a hidden handle's interlock mechanism, its technical scheme is:

the linkage mechanism of the hidden handle comprises a handle body and a fixing device, one end of the linkage mechanism is fixed with the handle body, the other end of the linkage mechanism is fixed with the fixing device, and under the action of external force, the handle body is driven to stretch and retract to achieve stretching or hiding of the handle.

Furthermore, the linkage mechanism comprises a linkage rod, one end of the linkage rod is fixed with the handle body, and the other end of the linkage rod is fixed with the fixing device and can rotate around a fixed point under the action of external force so as to drive the handle body to stretch.

Furthermore, the fixing device is provided with an installation seat with an installation groove, the other end of the linkage rod is inserted into the installation groove and fixed with a rotating shaft in the installation groove, and the rotating shaft drives the linkage rod to rotate under the action of external force.

Furthermore, the trace includes that one end all with the drive lever and the driven lever of handle body back fixed, the other end of drive lever and driven lever respectively with fixing device is fixed, thereby the drive lever can be rotated around the fixed point under the exogenic action and drive the handle body is flexible and the driven lever is rotatory around the fixed point.

Furthermore, the fixing device is provided with an installation seat with an installation groove, the other end of the linkage rod is inserted into the installation groove and fixed with the rotating shaft, the rotating shaft drives the linkage rod to rotate under the action of external force, and the other end of the driven rod is fixed with the driven shaft on the installation seat and can rotate around the driven shaft.

Furthermore, the fixing device is provided with a mounting seat, the mounting seat is provided with two mounting grooves which are arranged in parallel, one of the mounting grooves is internally provided with a rotating shaft which can rotate under the action of external force, the other mounting groove is internally provided with a driven shaft, one end of the driving rod is fixed with the rotating shaft, and one end of the driven rod is fixed with the driven shaft.

Furthermore, the driving rod is fixed with the rotating shaft in the mounting groove on the outer side.

Further, in the mounting groove, the position of the driven shaft is higher than the position of the rotating shaft.

Furthermore, a driving mechanism is arranged on the fixing device, the driving mechanism comprises a motor and a rotating shaft driven by the motor, the end part of the rotating shaft is fixed with the linkage mechanism, and the linkage mechanism is driven by the motor to move.

Further, the last mount pad that is provided with of fixing device, the mount pad has parallel arrangement's twice mounting groove, the pivot passes two the mounting groove, interlock mechanism includes driving lever and driven lever, the tip of driving lever one of them in the mounting groove with the pivot is fixed and can by the pivot drives the rotation, another be provided with the driven shaft in the mounting groove, the tip of driven lever with the driven shaft is fixed and can wind under the drive of the handle body the driven shaft is rotatory.

To sum up, the utility model provides a pair of interlock of hidden handle compares with prior art, has following advantage:

1. under the control of external force or a driving mechanism, the linkage mechanism can drive the handle to extend out or retract, and the handle is flush and hidden with the door body in a normal state, so that the household appliance has a better appearance, and the occupied space is saved;

2. the linkage mechanism drives the handle body to move, so that the two ends of the handle body move in a balanced manner, and the overall operation effect is improved.

Description of the drawings:

FIG. 1: the overall structure of the handle in the linkage mechanism of the hidden handle of the utility model is shown as figure I (without a front cover plate);

FIG. 2: the utility model relates to a schematic diagram of the overall structure of a handle in a linkage mechanism of a hidden handle (without a front cover plate);

FIG. 3: FIG. 1 is a sectional view taken along line A-A;

FIG. 4: the utility model discloses a schematic diagram III of the overall structure of a handle in a linkage mechanism of a hidden handle (comprising a front cover plate);

FIG. 5: the utility model relates to a structure sketch map of a front cover plate in a linkage mechanism of a hidden handle;

FIG. 6: the utility model relates to a handle body structure schematic diagram (back) in a linkage mechanism of a hidden handle;

FIG. 7: the integral structure of the handle in the linkage mechanism of the hidden handle of the utility model is designed in the third embodiment;

FIG. 8: the overall structure of the handle in the linkage mechanism of the hidden handle of the utility model is schematically illustrated in the fourth embodiment;

FIG. 9: the utility model relates to a handle overall structure schematic diagram five (embodiment three) in hidden handle's interlock mechanism.

The fixing device comprises a fixing device 1, a front plate 11, a supporting plate 12, a back plate 13, left and right side plates 14, a driving mechanism 2, a motor 21, a pinion 22, a large gear 23, a rotating shaft 24, a gear baffle plate 25, a motor mounting seat 26, a linkage mechanism 3, a driving rod 31, a driven rod 32, a driven shaft 33, a mounting seat 34, a fixing hole 35, a mounting groove 36, a door body 4, left and right frames 41, a front cover plate 5, an air vent 51, a screw seat 52, a slotted hole 53, a fixing baffle plate 54, a convex edge 55, an avoiding area 56, a back cover plate 6, a handle body 7, a connecting piece 71, a decoration piece 72, a torsion spring 8, a buckle 9 and.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a hidden handle's interlock mechanism 3, handle include the handle body 7 and fixing device 1, and 3 one end of interlock mechanism are fixed with the handle body 7, and the other end is fixed with fixing device 1, and under the exogenic action, it realizes stretching out or hiding of handle to drive handle body 7 is flexible.

Example one

Taking a steaming oven as an example, the specific structure of the linking mechanism of the hidden door handle and the fixed installation of the door body 4 provided by the invention are introduced. A hidden door handle can be installed at the end part of a three-layer glass door body 4 of an existing steaming and baking oven, the outer surface of the handle is flush with the outer surface of the door body 4 in a hidden state in a normal state, and after an opening command is received, the handle extends outwards, so that a holding space is formed between the handle and the door body 4, and the door body 4 is pulled open.

As shown in fig. 1 to 4, taking the hidden handle and the door 4 of the steam oven as an example, the door 4 of the steam oven includes three layers of glass arranged in parallel, a left frame 41, a right frame 41 and a top frame of the door 4, which are prior art and are not required to be repeated, the difference is that the top height of the second layer of glass is lower than that of the other two layers of glass plates, the hidden door handle is fixed with the door 4 through a fixing device 1, the fixing device 1 includes a fixing seat, as shown in fig. 1 to 4, and includes a back plate 13, a support plate 12 and a front plate 11 connected in sequence, an included angle between the two adjacent plates is 90 °, or an included angle between the two adjacent plates is set according to structural requirements, the back plate 13, the support plate 12 and the front plate 11 are integrally formed, the plates are sequentially bent into a Z-shaped structure, two sides of the support plate 12 are bent to form a left, front bezel 11 is fixed with the inboard of door 4 top frame (can be similar structure when not being provided with door 4 frame), make fixing device 1 install in the space between left and right sides frame 41 of door 4 and the top frame, and when making the handle body 7 be in the shrink state, the surface of the handle body 7 is parallel and level with the surface of foremost side glass, backup pad 12 bottom and backplate 13's back are fixed with high-efficient insulation material, avoid the inside or heat between the adjacent two-layer glass board of box to dissipate through backup pad 12, also reduce the temperature of the handle body 7 when reducing the inside calorific loss of box. A plurality of heat insulation collodions arranged at intervals are arranged between the back plate 13 and the innermost glass of the door body 4 of the steaming and baking oven. The fixing device 1 may be formed by bending a plate material as described above, and may be separately fixed to the door 4, or the interlocking mechanism 3 may be fixed to the frame of the door 4 by using a structure related to the frame of the door 4 as it is.

The fixing device 1 is provided with a driving mechanism which is fixed with the handle body 7 and drives the handle body 7 to extend or withdraw, in the utility model, the driving mechanism adopts electric drive, the driving mechanism comprises a single output motor 21, the motor 21 is fixed with a mounting seat 34 of the top motor 21 of the supporting plate 12, one side of the top of the mounting seat 34 of the motor 21 is provided with a gear baffle 25, an output shaft of the motor 21 passes through the gear baffle 25 and then is fixed with a pinion 22, a gearwheel 23 is meshed with the pinion 22, a rotating shaft 24 is fixed with a central hole of the gearwheel 23, the rotating shaft 24 comprises two parts which are connected with each other and integrally formed, the length direction of one part of the cylinder body is subjected to edge cutting treatment, so that the rotating shaft 24 forms a cylinder-like structure with a D-shaped section, the section size of the cylinder-like structure is matched with the central hole of the gearwheel 23, the other part of the rotating shaft 24, a limiting surface is formed, the cylinder-like structure of the rotating shaft 24 is inserted into the center of the large gear 23 until the limiting surface abuts against the end surface of the large gear 23, and the rotating shaft 24 and the large gear 23 are installed in place, so that the large gear 23 is limited between the side surface of the installation seat 34 of the motor 21 and the limiting surface of the rotating shaft 24, and the position of the large gear 23 is further limited. The matching of the center hole of the large gear 23 and the cylinder-like body of the rotating shaft 24 is only one embodiment of the rotating shaft 24 driven by the gear, so that the field installation is simple and labor-saving, in practical application, the fixing mode of the rotating shaft 24 and the large gear 23 can adopt any connecting and fixing mode in the prior art, and the rotation of the large gear 23 can drive the rotating shaft 24 to rotate.

The driving device 2 is connected with the linkage mechanism 3, the handle body 7 is driven to move through the linkage mechanism 3, and the linkage mechanism 3 comprises a linkage rod with one end fixed with the rotating shaft 24 and the other end fixed with the back of the handle body 7. As shown in fig. 1, two ends of the supporting plate 12 are respectively fixed with a mounting seat 34 having a mounting groove 36, one end of the linkage rod is disposed in the mounting groove 36, an end of the rotating shaft 24 passes through shaft holes on two side walls of the mounting groove 36 and can rotate in the shaft holes, one end of the linkage rod is fixed with the rotating shaft 24 in the mounting groove 36 and rotates under the driving of the rotating shaft 24, a fixing hole 35 which can match with the structure and size of the rotating shaft 24 is disposed at an end of the linkage rod, or a C-shaped groove is disposed, and the rotating shaft 24 is inserted into the mounting groove 36 and fixed with the linkage rod. In the utility model, two mounting grooves 36 are arranged in parallel on the single-side mounting seat 34, two linkage rods are arranged, each mounting groove 36 is internally provided with one linkage rod, the two linkage rods can be both fixed with the rotating shaft 24 and rotate under the driving of the rotating shaft 24, or one linkage rod is a driving rod 31 arranged on the outer side, one end of the linkage rod is fixed with the rotating shaft 24 in the mounting groove 36 and rotates under the driving of the rotating shaft 24, the other end of the linkage rod is fixed with the back surface of the door body 4, the other linkage rod is a driven rod 32, one end of the inner side (the side close to the motor 21) of the driving rod 31 is fixed with the other mounting groove 36 through a driven shaft 33, so that the mounting seat 34 can be fixed with the supporting plate 12, the other end of the linkage rod is fixed with the back surface of the door body 4, when the driving rod 31 rotates under the driving of the rotating shaft 24 to drive the handle body 7 to extend, the driven lever 32 serves to provide auxiliary power to balance the running track of the handle body 7. The driven rod 32 and the driving rod 31 have the same structure, so that the mold opening cost is reduced, the driven rod is of an L-shaped structure, the joint of the two side walls is rounded, the joint is in smooth transition, one side arm of the L-shaped structure is fixed with the rotating shaft 24 or the driven shaft 33, and the other side arm of the L-shaped structure is fixed with the handle body 7. Driven shaft 33 runs through two mounting grooves 36, both ends are fixed with two lateral walls in the outside of mounting groove 36 respectively, driven shaft 33 and pivot 24 parallel arrangement, the position height is different, and the relative pivot 24's in position of driven shaft 33 position direction more is close to the handle body 7, therefore, driven shaft 33 is when providing erection fixation position for driven lever 32, play the limiting displacement to driving lever 31, prevent that the rotation angle of driving lever 31 is too big, after the handle body 7 is opened, further play the supporting role to driving lever 31. An avoiding groove is formed in the position, corresponding to the active rod 31, of the rear back plate 13, the avoiding groove is used for avoiding rotation of the active rod 31, the circle guiding parts at the connecting positions of the arms on the two sides of the active rod 31 are located in the avoiding groove, and the avoiding groove provides enough rotation space. Since the driven shaft 33 is relatively close to the handle body 7, the overall position of the driven rod 32 moves towards the handle body 7, and therefore, a sufficient gap is left between the rear part of the driven rod 32 and the rear plate of the fixing device 1 for the driven rod 32 to rotate, an avoiding groove for the driven rod 32 to rotate is not required to be formed in the rear plate, and heat loss entering the handle body 7 from the interior of the box body and the interior of the door body 4 is reduced. In practical application, as shown in fig. 2, the driving mechanism may also adopt a dual-output motor 21, output shafts at two ends of the motor 21 are respectively fixed with a rotating shaft 24, one ends of the two rotating shafts 24 may be respectively fixed with the output shaft of the motor 21, or indirectly driven by the output shaft of the motor 21 to rotate through the large and small gears 22 engaged with each other as described above, and the other end is fixed with the linkage rod (the driving rod 31) through the mounting seat 34, and the mounting seat 34 and the linkage rod adopt the structure described above, which is not described again. The actuating mechanism also can be replaced by the manual button commonly used among the prior art, the remote lever structure, or the arbitrary technique that can drive pivot 24 rotation that probably appears in the future all can, do not require and the restriction, simultaneously the trace also can only set up in one side or with the central point of the handle body 7 department fixed, can drive the handle body 7 motion can, the utility model provides an embodiment and drawing can not regard as the restriction to the concrete structure and the fixed position of interlock mechanism 3.

It should be noted that, in the present embodiment, the linkage mechanism 3 includes two sets of linkage rods disposed at two ends of the fixing device 1, a set of driving rod 31 and driven rod 32 disposed at two sides, and a set of mounting seat 34 and driven rod 33 disposed at two sides, the driven rod 33 may be disposed only on the mounting groove 36 for fixing the driven rod 32, or as shown in fig. 1 to fig. 3, the two mounting grooves 36 penetrating through the same mounting seat 34, and in practical applications, the number of sets of driving rods 31 and driven rods 32 on the linkage mechanism 3 and the number of each set of driving rods 31 and driven rods 32 may be determined according to the length of the door body 4. The driven rod 32 may not be provided, and one or more driving rods may be provided only at both ends of the rotating shaft 24, and the structures of the mounting seat 34 and the mounting groove 36 may be modified adaptively according to the change of the form of the interlocking mechanism 3. The driving rod 31 is limited in operation, and the original driven shaft 33 is not eliminated. At this time, the driven shaft 33 only plays a limiting role.

As shown in fig. 6, the main body of the handle body 7 is a plate-shaped body with a common strip shape or other arbitrary shapes, and has the same shape as the outer surface of the door body 4, so that the handle body 7 forms an integral appearance with the outer surface of the door body 4 in a hidden state, a connecting piece 71 which can be fixed with the end part of the linking rod is fixed on the back surface (facing the interior of the box body) of the handle body 7, in the utility model, the connecting piece 71 is two parallel round rods fixed on the back of the handle body 7, the length of the round rods is larger than the distance between the linkage rods on the two sides, the wavy decorative piece 72 is arranged outside the connecting piece 71, the upper part of the decorative piece 72 is thin and the lower part is thick, which accords with the human engineering and improves the use hand feeling of the user, the positions of the decorative part 72 corresponding to the linkage rods are provided with notches, the circular rods are exposed and fixed with the end parts of the linkage rods, and similarly, the end parts of the linkage rods can be fixed with the circular rods through holes or C-shaped grooves.

Between the handle body 7 and the fixing device 1, there is provided an arc-shaped front cover plate 5 capable of shielding the driving mechanism, in order to provide a larger hand holding space after the handle body 7 is extended, as shown in fig. 5, the front cover plate 5 has a backward curved arc, and the back has a plurality of screw seats 52, which are screwed with the back plate 13 of the fixing device 1, and support the front cover plate 5, increasing the strength of the front cover plate 5. The front cover plate 5 is provided with two groups of linkage rods, which are provided with slotted holes 53 for the linkage rods to extend out and to be fixed with the connecting piece 71 on the back of the handle body 7, the bottom positions of the slotted holes 53 are flush, however, because the positions of the driving rod 31 and the driven rod 32 are different, the lengths of the four slots 53 are different, the length of the slot 53 corresponding to the active lever 31 is shorter, and a fixed baffle 54 with a through hole is arranged at the position corresponding to the outer side wall of the mounting seat 34, the through hole is arranged concentrically with the rotating shaft 24 and/or the driven shaft 33, so that the end part of the rotating shaft 24 and/or the driven shaft 33 penetrates through the through hole, when in mounting, the fixing baffle plates 54 are respectively inserted and fixed with the mounting seats 34 arranged on the supporting plate 12 of the fixing device 1, the two ends of the rotating shaft 24 and/or the driven shaft 33 are inserted into the through holes after being arranged with interference with the main body of the fixing baffle plates 54, and can rotate in the through holes, and the front cover plate 5 and the rear plate are further fixed by screws. A plurality of vent holes 51 are provided in the cowl panel 5, and heat generated from the motor 21 is discharged through the vent holes 51. The bottom of the two fixing baffles 54 protrudes from the bottom of the front housing plate 5, and a convex edge 55 is arranged between the two fixing plates, so as to effectively shield the structure on the supporting plate 12, and prevent the user from contacting the linkage mechanism 3 when inserting the hand holding space of the handle body 7 from bottom to top. The convex edge 55 is provided with an avoiding area 56 at a position corresponding to the motor 21, so that the heat dissipation efficiency of the motor 21 is improved. The front cover plate 5 has a continuous backward and downward fixing flange on the top, the downward fixing flange is fixed with the back plate 13, the width of the backward fixing flange is related to the diameter of the motor 21 and the large/small gear 22, so that after the front cover plate 5 is fixed with the back plate 13, enough distance and space are left between the front cover plate 5 and the fixing device 1 for installing the linkage mechanism 3 and the driving mechanism. The front cover plate 5 has the same overall length as the overall width of the door 4, and has folded edges at the left and right ends, which are fixed to the outer sides of the left and right frames 41 of the door 4, respectively. When the door is installed, the left and right frames 41 of the door 4 are inserted between the folded edges of the left and right ends of the front cover plate 5 and then fixed by screws.

When in installation, the driving device 2 is fixed with the fixing device 1, the rotating shaft 24 is respectively connected with the linkage rod and the fixed seat, the fixed seat is fixed with the supporting plate 12, the other end of the linkage rod is fixed with the connecting piece 71 on the back of the handle body 7, the front plate 11 of the fixing device 1 is fixed with the installation structure (such as the top frame of the door body 4 or the similar structure) on the top of the front glass, the left and right side plates 14 are fixed with the inner sides of the left and right frames 41 of the door body 4, the front cover plate 5 is respectively fixed with the back plate 13 and the outer sides of the left and right frames 41 of the door body 4, so that the whole hidden handle and the door body 4 are installed into a whole, in order to improve the beauty, the air tightness and the heat preservation of the hidden handle and the door body 4, the gap between the top of the hidden handle, the top of the handle and the top of the frame of the door body, the vertical edge is fixed with the inner side of the innermost glass of the door body 4 of the steaming and baking oven. Be provided with a plurality of air vents 51 on vertical edge for steam between inboard glass and the middle glass is discharged inside with the steam ager through air vent 51, prevents to produce the comdenstion water between the glass, and air vent 51 need be dodged in setting up of thermal-insulated glued membrane, and does not block that steam is discharged inside the steam ager through air vent 51, and thermal-insulated glued membrane can set to the type of falling L, and the minor face of the L type is lapped with the top of the most inboard glass of the door body 4, and the long limit is located between the insulation material at most inboard glass and postnotum 13 or postnotum 13 back.

Example two

The difference from the first embodiment is that the driving mechanism 2 using the motor as power is not provided, and the linkage mechanism 3 is directly acted by external force, so as to drive the handle body 7 to move. The rotation shaft 24 is provided in the installation groove 36, and an external force is applied to the rotation shaft 24 to force the rotation shaft 24 to rotate. The external force action mode can adopt a structure, such as a touch key, a supporting rod capable of driving the rotating shaft 24 is arranged on the door body 4 or the handle body, the touch key is pressed, the supporting rod transmits the applied external force to the rotating shaft 24, the rotating shaft 24 is forced to rotate, and then the linkage mechanism 3 and the handle body 4 are driven to stretch out and draw back to realize the extension or the hiding of the handle. The touch keys and the supporting rod for providing external force can adopt the common structures in the prior art, and are not required or limited. The mounting seat 34 provided on the fixing device has the same structure as that in the first embodiment, and may also have two mounting grooves 36 arranged in parallel, wherein a rotating shaft 24 is provided in one of the mounting grooves 36, and a driven shaft 33 is provided in the other mounting groove at a position higher than the rotating shaft 24 in a relative position, or as shown in fig. 1 to 3, the driven shaft 3 and the rotating shaft 24 may penetrate through the two mounting grooves 36, and the two ends of the fixing device 1 are symmetrically provided with the group mounting seat 34 and the corresponding linkage mechanism 3, the rotating shaft 24 penetrates through the four mounting grooves 36 of the two mounting seats 34, and the touch keys and the two sets of supporting rods are also provided, which may be respectively provided at two sides of the fixing device 1 to apply force to the rotating shaft 24, or provided at the middle position of the handle to apply force to the middle position of the rotating shaft 24 to drive the.

EXAMPLE III

As shown in fig. 7, a hidden handle, a handle body is fixed to a door body 4 through a fixing device 1, one end of a linkage mechanism 3 is fixed to the fixing device 1, the other end of the linkage mechanism is fixed to the handle body 7, the door body is extended and retracted through a push spring mode, so that the handle extends out of the outer surface of the door body or is flush with the outer surface of the door body to be hidden, two ends of the linkage mechanism 3 are respectively provided with a set of linkage rods, taking one set of linkage rods as an example, each linkage rod comprises a driving rod 31 and a driven rod 32, the driving rod 31 and the driven rod 32 are respectively fixed to the top surface of a supporting plate 12 through two mounting seats 34 at a certain distance, the ends of the driving rod 31 and the driven rod 32 are respectively inserted into the mounting grooves 36 of the corresponding mounting seats 34, a torsion spring 8 is arranged between the two mounting seats 34, one end of the torsion spring 8 is fixed to the driving rod 31, the driving rod 31 can be driven to rotate, so as to push the handle body 7 to pop out or retract to hide.

Be provided with buckle 9 of mutually supporting between the handle body 7 and the fixing device 1, buckle 9 is for can peg graft fixed pin thread and box each other, respectively establish one on the handle body 7 and the fixing device 1, under the normality, torsional spring 8 is compression state, the pin thread is pegged graft fixedly with the box, make handle body 7 and door body 4 parallel and level, be in hidden state, when needing to open the handle, press handle body 7, the box breaks away from the pin thread, torsional spring 8 drives the rotation of drive lever 31 under the effect of spring force, handle body 7 outwards (the direction of keeping away from a body 4) pops out, when needing to hide the handle, push handle body 7 inwards, it is fixed to peg graft with the box up to pin thread and box.

In this embodiment, drive arrangement is not motor drive, but adopts 8 cooperation buckles of torsional spring to realize opening and hiding of the bullet formula that pushes away of the door body, pops out mode convenient operation, and whole outward appearance is succinct pleasing to the eye. Similarly, in the present embodiment, a driven lever 32 is further provided beside the driving lever 31, and one end of the driven lever 32 is fixed to the handle body 7, and the other end is fixed to the fixing device 1 through a mounting seat 34. The fixing device 1 and the handle body 7 are as described in the first embodiment. In the embodiment, two installation seats 34 on the same side each have one installation groove 36, and the torsion spring 8 is disposed between the two installation seats 34, and the installation seat 34 having two installation grooves 36 as described in the first embodiment may also be adopted, and the torsion spring is disposed outside the installation groove 36 for fixing the driving rod 32 and fixed with the end of the driving rod 31. In order to ensure the synchronous movement of the two ends of the handle body, the two torsion springs are connected through a connecting rod 10, or the two torsion springs 8 are in an integral structure.

As shown in fig. 8, the buckle for fixing the handle body 7 and the fixing device 1 is disposed at the middle position of the back plate 13, and the two torsion springs 8 are connected by the connecting rod 10, or the two torsion springs 8 are integrated and disposed outside the mounting seat 34. Or as shown in fig. 9, the buckle 9 is fixed at a position of the back plate 13 close to the linkage rod.

The utility model provides a three embodiment to hidden handle and three-layer glass's the steaming and baking oven door body 4 top is fixed as the example, introduces the utility model provides a concrete structure of hidden handle and the installation of AND gate body 4 are fixed, nevertheless can not regard as the restriction to concrete structure, fixed mode and the range of application of hidden handle, in practical application, can be fixed the bottom of handle body 7 and steaming and baking oven door body 4, and the structure is unchangeable, only reverses 180 back AND gate body 4 bottoms installations. The hidden handle can also be applied to various household appliances needing to be provided with handles, such as disinfection cabinets, dish washing machines, refrigerators, freezers and the like, the door body 4 is not limited to the three-layer glass door body 4, the common foaming door body 4 or door bodies 4 with other structures, the door body 4 can be installed and fixed by processing the same as the three-layer glass door body 4, and according to different household appliances needing to be installed, the forms of the structures are finely adjusted to determine whether the heat insulation materials at the supporting plate 12 and the back plate 13 are used or not, and whether or not the ventilation holes 51 need to be arranged on the vertical edges of the back cover plate 6, if the door body 4 is applied on the door body 4 of a refrigerator or a freezer, the ventilation holes do not need to be arranged on the vertical edges of the back cover plate 6, however, sufficient heat insulating material needs to be filled and fixed between the vertical edge of the back cover plate 6 and the back plate 13, so that the cold energy in the refrigerator or freezer is prevented from being conducted and dissipated through the structures such as the back cover plate 6, the back plate 13 and the like.

Hide the handle and at 4 surface parallel and levels of the door body under the normal state, make 4 outward appearances of the door body neater, the transportation of packing of also being convenient for, after receiving the opening signal (the signal can be electric power signal or outer effort), stretch out to the outside by actuating mechanism drive interlock mechanism 3 and then drive the handle body 7, supply the user to grip the handle body 7, pull out the door body 4. After receiving the signal again, the hidden handle is driven by the driving mechanism and the linkage mechanism 3 to contract back to the original position, and is flush with the door body 4 to form a hidden state. When the driving mechanism adopts the motor 21 as driving power, the motor 21 can be connected with a main control board of the steaming and baking oven, and a control signal is controlled and output by the main control board, or a handle control key is arranged on the main control board, a signal output end of the handle control key is connected with a signal output end of the main control board, a signal output end of the main control board is connected with a signal output end of the motor 21, or a signal output end of the handle control key is directly connected with a signal input end of the motor 21, after the power-on operation, the handle control key is pressed, the motor 21 operates, the pinion 22 drives the meshed gearwheel 23 to rotate, and then the rotating shaft 24 is driven to rotate, and the hidden handle is extended or retracted by the linkage mechanism 3 under the driving of; or a handle control key is not needed to be arranged, the signal output end of the main control board is connected with the signal input end of the motor 21, after the steaming and baking oven is powered on to operate, the main control board directly controls the motor 21 to operate, so that the handle body 7 extends out as described above, the temperature of the handle body 7 is prevented from rising due to heat dissipated by the door body 4, bad experience is brought to a user, after the power is off, the motor 21 automatically rotates to withdraw the handle body 7, or the signal output end of the main control board is connected with the signal input end of the motor 21, after the power is on, the main control board directly controls the motor 21 to operate to drive the handle body 7 to extend out, when the program is completed, after the door body 4 of the steaming and baking oven is opened and closed again, the program is finished and the power is turned off, and. In practical application, the required control method or combination of several control methods can be selected by combining the various control methods described above.

To sum up, the utility model provides a pair of interlock of hidden handle compares with prior art, has following advantage:

1. under the control of external force or a driving mechanism, the linkage mechanism can drive the handle to extend out or retract, and the handle is flush and hidden with the door body in a normal state, so that the household appliance has a better appearance, and the occupied space is saved;

2. the linkage mechanism drives the handle body to move, so that the two ends of the handle body move in a balanced manner, and the overall operation effect is improved.

Similar solutions can be derived as described above in connection with the given solution content. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a hidden handle's interlock mechanism, the handle includes the handle body and fixing device, its characterized in that: one end of the linkage mechanism is fixed with the handle body, the other end of the linkage mechanism is fixed with the fixing device, and under the action of external force, the handle body is driven to stretch and retract to achieve stretching or hiding of the handle.

2. The linking mechanism of a hidden handle as claimed in claim 1, wherein: the linkage mechanism comprises a linkage rod, one end of the linkage rod is fixed with the handle body, the other end of the linkage rod is fixed with the fixing device, and the linkage rod can rotate around a fixed point under the action of external force so as to drive the handle body to stretch.

3. The linking mechanism of a hidden handle as claimed in claim 2, wherein: the fixing device is provided with a mounting seat with a mounting groove, the other end of the linkage rod is inserted into the mounting groove and fixed with a rotating shaft in the mounting groove, and the rotating shaft drives the linkage rod to rotate under the action of external force.

4. The linking mechanism of a hidden handle as claimed in claim 2, wherein: the linkage rod comprises a driving rod and a driven rod, one end of the driving rod is fixed to the back of the handle body, the other end of the driving rod is fixed to the fixing device, the driving rod can rotate around a fixed point under the action of external force to drive the handle body to stretch out and draw back, and the driven rod rotates around the fixed point.

5. The linking mechanism of a hidden handle as claimed in claim 4, wherein: the fixing device is provided with an installation seat with an installation groove, the other end of the linkage rod is inserted into the installation groove and fixed with the rotating shaft, the rotating shaft drives the linkage rod to rotate under the action of external force, and the other end of the driven rod is fixed with the driven shaft on the installation seat and can rotate around the driven shaft.

6. The linking mechanism of a hidden handle as claimed in claim 4, wherein: the fixing device is provided with a mounting seat, the mounting seat is provided with two mounting grooves which are arranged in parallel, one of the mounting grooves is internally provided with a rotating shaft which can rotate under the action of external force, the other mounting groove is internally provided with a driven shaft, one end of the driving rod is fixed with the rotating shaft, and one end of the driven rod is fixed with the driven shaft.

7. The linking mechanism of a hidden handle as claimed in claim 6, wherein: the driving rod is fixed with the rotating shaft in the mounting groove on the outer side.

8. The linking mechanism of a hidden handle as claimed in claim 6, wherein: in the installation groove, the position of the driven shaft is higher than that of the rotating shaft.

9. The linking mechanism of a hidden handle as claimed in any one of claims 1 to 8, wherein: the fixing device is provided with a driving mechanism, the driving mechanism comprises a motor and a rotating shaft driven by the motor, the end part of the rotating shaft is fixed with the linkage mechanism, and the linkage mechanism is driven by the motor to move.

10. The linking mechanism of a hidden handle as claimed in claim 9, wherein: the fixing device is provided with a mounting seat, the mounting seat is provided with two mounting grooves which are arranged in parallel, the rotating shaft penetrates through the two mounting grooves, the linkage mechanism comprises a driving rod and a driven rod, the end part of the driving rod is arranged in one of the mounting grooves, fixed with the rotating shaft and driven by the rotating shaft to rotate, the other mounting groove is internally provided with a driven shaft, and the end part of the driven rod is fixed with the driven shaft and can rotate around the driven shaft under the driving of the handle body.

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