Hinge mechanism and cooking machine thereof

Abstract

The utility model discloses a hinge mechanism, which comprises a support assembly, a hinge assembly and a connecting assembly, the support assembly comprises a fixed support and a movable support, the fixed support is provided with a first hinge portion extending towards the movable support, and the movable support is provided with a second hinge portion extending towards the fixed support; the first hinge part and the second hinge part are rotationally connected through the hinge shaft; the elastic assembly comprises two torsion springs arranged between the fixed support and the movable support, the two torsion springs are arranged outside the two opposite ends of the hinge shaft in a sleeving mode respectively, each torsion spring is provided with a first foot part and a second foot part which are oppositely arranged, the first foot part is connected with the fixed support in a clamped mode, and the second foot part is connected with the movable support in a clamped mode. And the second foot part is clamped with the movable bracket. According to the hinge mechanism, the modular design is adopted, simple disassembly and assembly are achieved, and the product assembly efficiency and consistency are improved. The utility model further provides the cooking machine.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking machines, in particular to an articulated mechanism and a cooking machine thereof. Background Art

[0002] The following problems exist in the hinged opening and closing of the existing cooking machine: 1. The hinged opening and closing of the flap is mostly plugged in when the whole machine is assembled, which makes disassembly and assembly complicated; 2. During the opening and closing process of the flap, the metal hinged opening and closing point will produce abnormal friction noise and torsion spring noise, affecting the user experience. Summary of the invention

[0003] The utility model aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the utility model proposes a hinge mechanism, which adopts a modular design to achieve simple disassembly and assembly, and improve product assembly efficiency and consistency. The utility model also provides a cooking machine.

[0004] According to the above-mentioned hinge mechanism, it is realized by the following technical solution:

[0005] A hinge mechanism comprises: a bracket assembly, comprising a fixed bracket and a movable bracket, the fixed bracket being provided with a first hinge portion extending toward the movable bracket, and the movable bracket being provided with a second hinge portion extending toward the fixed bracket; a hinge shaft, the first hinge portion and the second hinge portion being rotatably connected via the hinge shaft; and an elastic assembly, comprising two torsion springs arranged between the fixed bracket and the movable bracket, the two torsion springs being respectively sleeved on opposite ends of the hinge shaft, each of the torsion springs having a first foot and a second foot arranged oppositely, the first foot being clamped with the fixed bracket, and the second foot being clamped with the movable bracket.

[0006] In some embodiments, the fixed bracket is provided with a locking portion at the position corresponding to the first foot, and the first foot is engaged with the locking portion; the movable bracket is provided with a locking slot and / or a second locking hole, and the second foot is engaged with the locking slot or the second locking hole.

[0007] In some embodiments, the hinge shaft includes two rotating shafts, the first hinge part and the second hinge part are rotatably connected via the two rotating shafts, and the two torsion springs are respectively sleeved outside the two rotating shafts.

[0008] In some embodiments, the inner ends of the two rotating shafts are arranged at intervals, and the outer end of each rotating shaft away from the torsion spring is fixed with a limiting portion outside the bracket assembly; or the inner ends of the two rotating shafts are connected to each other to form a coupling, and a limiting head outside the bracket assembly is provided at one end of the coupling, and the other end is detachably connected to a fastener located outside the bracket assembly.

[0009] In some embodiments, two locking members are further included, which are detachably connected to opposite ends of the hinge shaft and located between the two torsion springs, and each locking member is in abutment with or clearance fit with an adjacent torsion spring.

[0010] In some embodiments, a sleeve assembly is provided between the torsion spring and the hinge shaft and is sleeved outside the hinge shaft, and the sleeve assembly can rotate relative to the hinge shaft.

[0011] In some embodiments, the sleeve assembly is spaced apart from a locking member disposed proximate thereto.

[0012] In some embodiments, the sleeve assembly includes a first sleeve and / or a second sleeve, the first sleeve is disposed between the articulated shaft and the torsion spring, and the hardness of the first sleeve is between the hardness of the bracket assembly and the hardness of the articulated shaft; the second sleeve is disposed between the torsion spring and the articulated shaft or the first sleeve, and the hardness of the second sleeve is between the hardness of the torsion spring and the hardness of the first sleeve or the articulated shaft.

[0013] In some embodiments, a second opening is provided on the second ear of the second hinged part, and the hinge shaft and the end of the first sleeve away from the locking member are both transversely passed through the second opening; the end of the second sleeve away from the locking member is abutted against or gap-fitted with the inner surface of the second ear of the second hinged part.

[0014] According to the cooking machine provided above, it is realized by the following technical solution:

[0015] A cooking machine comprises: a flip cover assembly, including a pot cover body and a swing arm connected to the pot cover body; a fixed seat, arranged below the rear end of the swing arm; and a hinge mechanism as described above, wherein the movable bracket is inserted into the rear end of the swing arm and connected to the swing arm, and the fixed bracket is inserted into the fixed seat and connected to the fixed seat.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. The hinge mechanism of the utility model is modularized by designing the bracket assembly, the hinge shaft and the elastic assembly as a whole, so as to achieve easy disassembly and assembly, and improve the assembly efficiency and consistency of the product;

[0018] 2. By adding a sleeve assembly between the articulated shaft and the torsion spring, the problem of the torsion spring bouncing and hitting the articulated shaft during compression or relaxation to produce noise or abnormal sound is solved, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the hinge mechanism in Example 1 of the utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the hinge mechanism in Example 1 of the utility model. Figure 2 ;

[0021] Figure 3 is a cross-sectional view of the hinge mechanism in Embodiment 1 of the present utility model;

[0022] Figure 4 It is a side view of the hinge mechanism in Embodiment 2 of the present utility model;

[0023] Figure 5 It is a structural schematic diagram of a cooking machine in Embodiment 3 of the present utility model;

[0024] Figure 6 It is a cross-sectional view of the cooking machine in Embodiment 3 of the present utility model;

[0025] Figure 7 It is an exploded view of the flip cover assembly and the fixing seat in Example 3 of the utility model.

[0026] In the figure: 11-fixed bracket, 111-first engaging hole, 112-first support ear, 113-first fixing hole, 12-movable bracket, 120-slot, 121-second fixing hole, 122-second support ear; 2-hinge shaft, 21-rotating shaft, 211-limiting part, 22-coupling shaft, 221-limiting head, 23-fastener; 3-torsion spring, 31-first foot, 32-second foot; 4-locking member; 5-sleeve assembly, 51-first sleeve, 52-second sleeve; 6-flip cover assembly, 61-pot cover body, 62-swing arm, 621-accommodating chamber, 622-upper arc arm, 623-lower arc arm; 7-fixed seat, 71-mounting groove, 72-stopper, 73-rear arc arm, 731-protruding part. DETAILED DESCRIPTION

[0027] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific implementation methods of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed for protection in the present invention.

[0028] Example 1

[0029] refer to Figure 1-3, this embodiment provides a hinge mechanism that can be detachably installed on a cooking machine. The hinge mechanism includes a bracket assembly (not shown in the figure), a hinge shaft 2 and an elastic assembly (not shown in the figure), wherein the bracket assembly includes a fixed bracket 11 and a movable bracket 12, the fixed bracket 11 is used to be detachably connected to a fixed seat in the cooking machine, and the movable bracket 12 is used to be detachably connected to a flip cover assembly in the cooking machine. The fixed bracket 11 is integrally formed with a first hinge portion extending toward the movable portion, specifically, the first hinge portion includes two first ears 112 spaced apart in the left-right direction, and each first ear 112 is provided with a first opening for the hinge shaft 2 to pass through. The movable bracket 12 is integrally formed with a second hinge portion extending toward the fixed bracket 11. Specifically, the second hinge portion is inserted in the first hinge portion, that is, the second hinge portion is inserted between the two first lugs 112. The second hinge portion includes second lugs 122 arranged at intervals in the left-right direction. Each second lug 122 is provided with a second opening for the hinge shaft 2 to pass through. The second opening is arranged corresponding to the first opening, and the diameter of the second opening is larger than the diameter of the first opening.

[0030] The first hinge part and the second hinge part are rotatably connected via the hinge shaft 2. Specifically, the left and right ends of the hinge shaft 2 are respectively transversely penetrated through the two second openings of the second hinge part and the two first openings of the first hinge part, so that the movable bracket 12 can rotate relative to the fixed bracket 11. More specifically, the hinge shaft 2 is welded or bonded to the first hinge part so that the hinge shaft 2 and the fixed bracket 11 are connected as a whole, so that the hinge shaft cannot rotate relative to the fixed bracket.

[0031] The elastic component includes two torsion springs 3 arranged between the fixed bracket 11 and the movable bracket 12. The two torsion springs 3 are respectively sleeved outside the opposite ends of the hinge shaft 2. Each torsion spring 3 has a first foot 31 and a second foot 32 arranged opposite to each other. The first foot 31 is clamped with the fixed bracket 11, and the second foot 32 is clamped with the movable bracket 12. In this way, the two torsion springs 3 provide tension to the left and right ends of the bracket assembly, thereby offsetting the gravity load of the flip cover assembly and improving the opening and closing performance of the flip cover assembly.

[0032] It can be seen that compared with the existing flip cover opening and closing hinges which are mostly plugged in separately when the whole machine is assembled, this embodiment designs the bracket assembly, the hinge shaft 2 and the two torsion springs 3 in the elastic assembly as a whole, so that the hinge mechanism is modularized, and then the bracket assembly is respectively connected to the fixed seat and the flip cover assembly in the cooking machine, thereby realizing simple disassembly and assembly, and improving product assembly efficiency and consistency.

[0033] refer to Figure 1-2, the fixing bracket 11 is in an inverted "U" shape. At the upper ends of the left and right side plates of the fixing bracket 11, first lugs 112 extending upward are integrally formed respectively. On the back plate of the fixing bracket 11, two sets of engaging parts and a plurality of first fixing holes 113 are arranged at intervals. The first fixing holes 113 are used for detachably connecting with the fixing seat in the cooking machine. The two sets of engaging parts are respectively engaged and connected with the first feet 31 of the two torsion springs 3 to reliably connect the torsion springs to the fixing bracket 11. In this embodiment, each engaging part includes a first engaging hole 111 for engaging and connecting with the first foot 31 of the torsion spring 3. In other embodiments, each engaging part may include a plurality of first engaging holes 111 arranged at intervals in the up and down direction. In this way, by adjusting the connection of the first foot 31 of the torsion spring 3 with different first engaging holes 111, the tension force of the torsion spring 3 on the bracket assembly can be adjusted.

[0034] The movable bracket 12 is in an inverted "U" shape. At the rear ends of the left and right end plates of the movable bracket 12, second lugs 122 extending backward are integrally formed respectively. On the top plate of the movable bracket 12, a plurality of first fixing holes 113 are arranged at intervals. The first fixing holes 113 are used for detachably connecting with the fixing seat in the cooking machine. In this embodiment, two corners are formed between the top plate of the movable bracket 12 and the two side plates. The two corners respectively form two clamping grooves 120. The two clamping grooves 120 are respectively engaged and connected with the second feet 32 of the two torsion springs 3 to reliably connect the torsion springs to the movable bracket 12. In other embodiments, at least one second opening and closing hole may be added at the position of the top plate of the movable bracket 12 corresponding to the second foot 32. The second foot 32 of the torsion spring 3 is configured to be suitable for engaging and connecting with the second opening and closing hole.

[0035] Reference Figure 1-3 , the hinge shaft 2 includes two rotating shafts 21. The first hinge part and the second hinge part are rotationally connected through the two rotating shafts 21. Specifically, the left rotating shaft 21 sequentially passes through the left second opening of the second hinge part and the left first opening of the first hinge part horizontally, and the right rotating shaft 21 sequentially passes through the right second opening of the second hinge part and the right first opening of the first hinge part horizontally. The two rotating shafts 21 are respectively fixed to the fixing bracket 11 by welding or bonding. The two torsion springs 3 are respectively sleeved outside the two rotating shafts 21.

[0036] Specifically, the inner ends of the two rotating shafts 21 are arranged at intervals. At the outer end of each rotating shaft 21 away from the torsion spring 3, a limiting part 211 extending outward and located outside the bracket assembly is integrally formed. The diameter of the limiting part 211 is larger than the diameter of the first opening of the fixing bracket 11. The rotating shaft 21 is used to limit the installation depth of the rotating shaft 21, and the rotating shaft 21 is also used to be fixed to the first lug 112 of the fixing bracket 11 by welding or bonding.

[0037] Reference Figure 1-3Furthermore, the hinge mechanism further includes two locking members 4, which are detachably connected to the opposite ends of the hinge shaft 2 and are located between the two torsion springs 3, and each locking member 4 abuts against or is clearance-matched with the adjacent torsion spring 3. Specifically, the locking member 4 is preferably a nut, which is threadedly connected to the inner end of the rotating shaft 21. Of course, the locking member 4 can also be a latch or a U-shaped locking pin that is plugged into the inner end of the rotating shaft 21.

[0038] refer to Figure 1-3 Furthermore, the articulated mechanism also includes a shaft sleeve assembly 5, a shaft sleeve assembly 5 sleeved outside the rotating shaft 21 is provided between the torsion spring 3 and the articulated shaft 2, the shaft sleeve assembly 5 can rotate relative to the articulated shaft 2, and the shaft sleeve assembly 5 is spaced apart from the locking member 4 arranged close thereto to ensure that the shaft sleeve assembly 5 can rotate smoothly. In this way, by adding the shaft sleeve assembly 5 between the articulated shaft 2 and the torsion spring 3, the friction noise between the articulated shaft 2 and the torsion spring 3 can be reduced, and the problem of the metal torsion spring 3 bouncing and hitting the metal articulated shaft 2 to generate noise during compression or relaxation is solved.

[0039] Specifically, the sleeve assembly includes a first sleeve 51 and / or a second sleeve 52, the first sleeve 51 is sleeved between the hinge shaft 2 and the torsion spring 3, and the hardness of the first sleeve 51 is between the hardness of the bracket assembly and the hardness of the hinge shaft 2. In this way, the problem that the same material or similar hardness is prone to friction noise during the swinging process of the movable bracket 12 is solved, and the problem of cutting wear caused by long-term mutual rotation between the bracket assembly and the metal shaft 21, resulting in abnormal noise and looseness, is improved, achieving the effect of lubrication-free and increasing the durability.

[0040] The second sleeve 52 is sleeved between the torsion spring 3 and the articulated shaft 2 or the first sleeve 51, and the hardness of the second sleeve 52 is between the hardness of the torsion spring 3 and the hardness of the first sleeve 51 or the articulated shaft 2. In this way, the problem of the metal torsion spring 3 bouncing and colliding with the metal rotating shaft 21 to generate noise during compression or relaxation is solved.

[0041] See also Figure 3 In this embodiment, the first sleeve 51 is a metal sleeve or a plastic sleeve, the inner end of the first sleeve 51 is loosely matched with the locking member 4, and the outer end is transversely inserted into the second opening of the movable bracket 12 and abuts or loosely matches with the inner surface of the first ear 112 of the fixed bracket 11, so as to solve the problem of noise generated by the movable bracket 12 hitting the metal shaft 21 when rotating. The second sleeve 52 is a plastic sleeve, the inner end of the second sleeve 52 is loosely matched with the locking member 4, and the outer end is abutted or loosely matched with the inner surface of the second ear 122 of the movable bracket 12. In other embodiments, a limiting flange extending outward and in an annular shape can be integrally formed on the outer end of the first sleeve 51 and / or the second sleeve 51.

[0042] Example 2

[0043] refer to Figure 4 , the difference between this embodiment and embodiment 1 is that the specific structure of the hinge shaft 2 is different. Specifically, the hinge shaft 2 includes two rotating shafts 21 and a fastener 23. The inner ends of the two rotating shafts 21 are connected to each other to form a coupling shaft 22. The left and right ends of the coupling shaft 22 are respectively transversely arranged in the two second openings of the second hinge part and the two first openings of the first hinge part. A limit head 221 outside the bracket assembly is provided at one end of the coupling shaft 22. The limit head 221 is welded or bonded to one of the first ears 112 of the fixed bracket 11; the other end of the coupling shaft 22 is detachably connected to a fastener 23 outside the bracket assembly. The fastener 23 is threadedly connected to the coupling shaft 22 and abuts against the other first ear 112 of the fixed bracket 11. It can be seen that the fastener 23 and the limit head 221 cooperate to prevent the coupling shaft 22 from being separated from the bracket assembly, and effectively ensure the connection reliability of the coupling shaft 22 and the bracket assembly.

[0044] Two locking pieces 4 are sleeved outside the coupling 22 and located between the two torsion springs 3. Each locking piece 4 is threadedly connected to the coupling 22, and each locking piece 4 is clearance-matched with the torsion spring 3 arranged near it. A sleeve assembly 5 sleeved outside the coupling 22 is provided between each torsion spring 3 and the coupling 22. The sleeve assembly 5 is clearance-matched with the locking piece 4 arranged near it to ensure that the sleeve assembly 5 can rotate smoothly.

[0045] Example 3

[0046] refer to Figure 5-7 The present embodiment provides a cooking machine, comprising a flip cover assembly 6, a fixing seat 7 and a hinge mechanism as described in Embodiment 1 or 2, wherein the flip cover assembly 6 comprises a pot cover body 61 and a swing arm 62 connected to the pot cover body 61, and the swing arm 62 has a receiving cavity 621 with a rear end opening. The fixing seat 7 is arranged below the rear end of the swing arm 62, and an upwardly opening mounting groove 71 is provided at the upper end of the fixing seat 7, and the mounting groove 71 has an expanded structure with a small lower end and a large upper end.

[0047] The fixed bracket 11 is inserted into the installation groove 71 of the fixed base 7 from top to bottom and is connected to the fixed base 7, and the movable bracket 12 is inserted into the rear end of the accommodating cavity 621 of the swing arm 62 from back to front and is connected to the swing arm 62. In this way, through the modular hinge mechanism, simple disassembly and assembly are achieved, the product assembly efficiency and consistency are improved, and at the same time, abnormal noise can be prevented during the opening and closing process of the flip cover assembly 6.

[0048] Specifically, an upper arc arm 622 and a lower arc arm 623 extending rearward and convex outward are integrally formed at the upper and lower ends of the rear end of the swing arm 62. The upper arc arm 622 and the lower arc arm 623 are respectively located at the upper and lower outer sides of the hinge mechanism, and the rear end of the lower arc arm 623 can be movably inserted into the mounting groove 71 of the fixed seat 7 and is gap-matched with the fixed bracket 11 of the hinge mechanism.

[0049] Two stoppers 72 extending upward are formed integrally on the left and right sides of the upper end of the fixing seat 7. The two stoppers 72 are respectively located on the left and right outer sides of the rear end of the swing arm 62, and are used to cover the lateral opening formed between the upper arc-shaped arm 622 and the lower arc-shaped arm 623, so as to improve the overall aesthetics. A rear arc-shaped arm 73 extending upward is formed integrally on the upper end of the rear side wall of the fixing seat 7. The upper end of the rear arc-shaped arm 73 is inserted between the hinge mechanism and the upper arc-shaped arm 622, and the upper arc-shaped arm 622 can rotate relative to the rear arc-shaped arm 73.

[0050] Specifically, a protrusion 731 extending forward is integrally formed at the left and right ends of the rear arc-shaped arm 73 , and the protrusion 731 is inserted between the first lug 112 of the fixed bracket 11 and the second lug 122 of the movable bracket 2 to limit the fixed bracket 11 and the movable bracket 2 .

[0051] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A hinge mechanism, characterized in that: include: A bracket assembly comprises a fixed bracket (11) and a movable bracket (12), wherein the fixed bracket (11) is provided with a first hinge portion extending toward the movable bracket, and the movable bracket (12) is provided with a second hinge portion extending toward the fixed bracket (11); An articulated shaft (2), wherein the first articulated portion and the second articulated portion are rotatably connected via the articulated shaft (2); as well as The elastic component comprises two torsion springs (3) arranged between the fixed bracket (11) and the movable bracket (12), the two torsion springs (3) being respectively sleeved outside the opposite ends of the hinge shaft (2), each of the torsion springs (3) having a first foot (31) and a second foot (32) arranged oppositely, the first foot (31) being clamped with the fixed bracket (11), and the second foot (32) being clamped with the movable bracket (12).

2. The hinge mechanism according to claim 1, characterized in that: The fixed bracket (11) is provided with a snap-fitting portion at a position corresponding to the first foot (31), and the first foot (31) is snap-fitted with the snap-fitting portion; the movable bracket (12) is provided with a snap-fitting slot (120) and / or a second snap-fitting hole, and the second foot (32) is snap-fitted with the snap-fitting slot (120) or the second snap-fitting hole.

3. The hinge mechanism according to claim 1, characterized in that: The hinge shaft (2) comprises two rotating shafts (21), the first hinge part and the second hinge part are rotatably connected via the two rotating shafts (21), and the two torsion springs (3) are respectively sleeved outside the two rotating shafts (21).

4. The hinge mechanism according to claim 3, characterized in that: The inner ends of the two rotating shafts (21) are arranged at intervals, and the outer end of each rotating shaft (21) away from the torsion spring (3) is fixedly provided with a limiting portion (211) outside the bracket assembly; or The inner ends of the two rotating shafts (21) are connected to each other to form a coupling shaft (22), one end of the coupling shaft (22) is provided with a limiting head (221) outside the bracket assembly, and the other end is detachably connected with a fastener (23) located outside the bracket assembly.

5. The hinge mechanism according to claim 1, characterized in that: It also comprises two locking members (4), which are detachably connected to the opposite ends of the hinge shaft (2) and are located between the two torsion springs (3), and each of the locking members (4) is in abutment with or clearance fit with the adjacent torsion spring (3).

6. A hinge mechanism according to claim 1 or 5, characterized in that: A shaft sleeve assembly is provided between the torsion spring (3) and the hinge shaft (2) and is sleeved outside the hinge shaft (2); the shaft sleeve assembly is capable of rotating relative to the hinge shaft (2).

7. The hinge mechanism according to claim 6, characterized in that: The shaft sleeve assembly is spaced apart from a locking member (4) arranged adjacent thereto.

8. The hinge mechanism according to claim 6, characterized in that: The shaft sleeve assembly comprises a first shaft sleeve (51) and / or a second shaft sleeve (52), the first shaft sleeve (51) being sleeved between the hinge shaft (2) and the torsion spring (3), and the hardness of the first shaft sleeve (51) being between the hardness of the bracket assembly and the hardness of the hinge shaft (2); The second sleeve (52) is sleeved between the torsion spring (3) and the hinge shaft (2) or the first sleeve (51), and the hardness of the second sleeve (52) is between the hardness of the torsion spring (3) and the hardness of the first sleeve (51) or the hinge shaft (2).

9. The hinge mechanism according to claim 8, characterized in that: A second opening is provided on the second support ear (122) of the second hinged portion, and the hinged shaft (2) and the end of the first sleeve (51) away from the locking member (4) are both transversely penetrated through the second opening; One end of the second sleeve (52) away from the locking member (4) is in abutment with or clearance fit with the inner surface of the second ear (122) of the second hinged portion.

10. A cooking machine, characterized in that: include: The flip cover assembly comprises a pot cover body (61) and a swing arm (62) connected to the pot cover body (61); A fixing seat (7) is arranged below the rear end of the swing arm (62); and An articulated mechanism as described in any one of claims 1 to 9, wherein the movable bracket (12) is inserted into the rear end of the swing arm (62) and connected to the swing arm (62), and the fixed bracket (11) is inserted into the fixed seat (7) and connected to the fixed seat (7).

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