Lid fastening structure for pressure cooker

Abstract

The present invention provides a button provided on an upper handle, a locking assembly that rotates by operating the button, and a locking mechanism that moves left and right according to the rotation of the locking assembly and locks the rice cooker body and the lid body, thereby enabling the lid of a pressure rice cooker to be easily locked or unlocked from the rice cooker body by operating the button alone.

Description

Technology Field

[0001] The present invention relates to a lid fastening structure for a pressure cooker, and more specifically, to a lid fastening structure for a pressure cooker in which a rotating shaft is rotatably coupled to an upper handle of the lid, and a locking assembly is provided with a body integrally formed at the lower part of the rotating shaft, wherein the body rotates forward and backward around the rotating shaft and moves the locking member left and right when a button is operated that moves up and down from the center of the upper handle, thereby allowing the lid of the pressure cooker to be easily locked or unlocked from the body of the pressure cooker. Background Technology

[0002] Generally, pressure rice cookers are equipped with a rubber gasket when the rice cooker body and lid are joined to prevent heated steam from escaping to the outside, and a safety device is provided on the lid to discharge heated and pressurized steam to the outside if the internal pressure exceeds a set pressure.

[0003] Meanwhile, the upper rim of a conventional rice cooker body is provided with several protrusions and recessed grooves, and by rotating a lid inserted into the recessed grooves, the U-shaped folded portion of the lower rim of the lid is connected to or disconnected from the upper rim of the rice cooker body. However, the fastening structure of the conventional lid had a problem in that it could not be easily opened or closed by anyone because force was applied when fastening it to the rice cooker body.

[0004] As prior art related to this, Korean Registered Patent No. 10-1431721 (August 12, 2014) discloses a 'pressure rice cooker lid opening and closing device'.

[0005] The above prior art comprises, as illustrated in FIG. 1, a pair of links (10) installed to be movable left and right on both sides of a lower handle (3) and equipped with a clamp (11) for locking a lid (1) and a pot (2); a tension spring (20) connected to both links (10); a roller (30) rotatably connected to each end of both links (10); a release push button (40) mounted on an upper handle (4) and equipped with an inverted triangular projection (40a) that pushes both rollers (30) outward to release the locking of the clamp (11); and a locking plate (50) equipped with an inclined piece (51) that receives the elasticity of a spring (S1) to control the upward movement of the release push button (40). A locking push button (60) mounted on an upper handle (4) to lock the clamp (11) by having an inclined projection (61) that pushes the inclined piece (51) of the locking plate (50) outward to release it; and a guide member (70) installed on the upper handle (4) to guide the up-and-down movement of the release push button (40) and the locking push button (60) and the left-and-right movement of the locking plate (50).

[0006] Here, the guide member (70) is characterized by having button holes (71) and (72) formed therein to guide the release push button (40) and the locking push button (60), respectively, and a guide groove (73) is formed at the bottom of the button hole (72) to guide the left and right movement of the locking plate (50), a spring groove (74) is formed on one side of the guide groove (73) to accommodate a spring (S1), and a fixing projection (52) that is fitted into the spring (S1) is protruded from the locking plate (50).

[0007] However, the aforementioned prior art had a problem in that the locking plate (50) equipped with an inclined plate (51) and the guide member (70) that guides the up-and-down movement of the button and the left-and-right movement of the locking plate were provided separately from each other, which increased the number of components and made assembly complicated. The problem to be solved

[0008] The present invention was created to solve the problems of the prior art as described above. The objective of the present invention is to provide a lid fastening structure for a pressure rice cooker in which a lid that is coupled to and locks the upper part of a rice cooker body is composed of a lid body, an upper handle, and a locking part; when a button provided on the upper handle is operated, the locking assembly of the locking part rotates by the force transmitted to the presser, and the rotation of the locking assembly moves the locking mechanism left and right, thereby locking and unlocking the edges of the rice cooker body and the lid body solely through button operation, so that the user can easily change the locked state of the lid. means of solving the problem

[0009] A lid fastening structure for a pressure rice cooker according to the present invention for achieving the above-mentioned purpose is a lid fastening structure for a pressure rice cooker that locks or unlocks the connection between a rice cooker body and a lid, comprising: a lid body in which a rubber packing that adheres to the rim of the rice cooker body is inserted into the lower rim; an upper handle coupled to the upper part of the lid body and having a pair of buttons coupled to the central part that move up and down; and a locking part equipped with a locking mechanism comprising a pair of locking conveying members, one end of which is seated so as to overlap each other while crossing the upper center of the lid body, and the other end of which is bent downward from the upper part of the lid body and extended, and a locking fastening member coupled to the lower part of the locking conveying member and formed to face each other to lock both sides of the rim where the rice cooker body and the lid are in close contact.

[0010] The above locking part is provided with a locking assembly comprising a rotating shaft rotatably coupled to the lower surface of the upper handle and a body coupled to the lower part of the rotating shaft.

[0011] The above-mentioned assembly body has a cavity formed in the center, and is provided with a shaft support end extending upward to be coupled to the lower surface of the assembly rotation shaft on the upper surface, and a pair of protruding ends protruding upward at a predetermined distance from the front and rear of the shaft support end, respectively, and is provided with a pair of extension rod insertion holes on the lower surface that are inclined from the center to both sides so that the locking mechanism can be moved left and right.

[0012] The above locking transfer member is characterized by being provided with a fastening extension rod extending upward from the central upper surface so that its upper end is inserted into the extension rod insertion hole.

[0013] The above-described rotating shaft is characterized by having a pair of rotational support holes formed on each of its upper surfaces that are adjacent to each other and recessed downward, and the upper handle is provided with a pair of shaft fixing members that wrap around the lower ends of the rotating shaft and are coupled to the lower surface, and a shaft fixing ball that is in close contact with the rotational support holes by spring elastic force.

[0014] The upper handle is characterized by having a ball seating groove recessed upward from the bottom surface to allow the shaft fixing ball and spring to be seated, and transfer grooves recessed upward at both lower ends to surround the upper part of the locking transfer member.

[0015] The above-mentioned shaft fixing ball is characterized by being in close contact with one of the rotational support holes by the elastic force transmitted from the upper spring, thereby fixing the rotated state of the locking assembly.

[0016] The upper handle has a pair of button insertion grooves formed therein into which the button is inserted, and the button is characterized by having a pressing plate with an upper surface exposed upward, a pressing rod extending downward from the lower center of the pressing plate, a first spring inserted into the outer periphery of the pressing rod and supported on the inner surface of the button insertion groove, and anti-detachment members extending downward from the lower sides of both sides of the pressing plate, and a locking projection protruding outwardly is provided on the lower outer part of the anti-detachment members to engage with the lower surface of the upper handle.

[0017] The lid body is provided with a pair of handle coupling members extending upward to be coupled with the upper handle, the upper handle is provided with an upper finishing member coupled with the handle coupling members, and the locking transfer member is provided with a coupling elongated hole through which the handle coupling members pass and extend.

[0018] The above locking conveyor comprises a first locking conveyor positioned at the bottom and a second locking conveyor positioned on the upper part of the first locking conveyor, wherein the second locking conveyor is provided with a through-hole for an extension rod protruding in a lateral direction so that the fastening rod of the first locking conveyor is inserted and protrudes, and wherein the front and rear upper portions of the first locking conveyor and the second locking conveyor are provided with a plurality of anti-detachment projections bent upward to prevent forward and rear movement while overlapping each other. Effects of the invention

[0019] As such, the lid fastening structure for a pressure cooker according to the present invention has the following effects.

[0020] First, a locking mechanism is provided between the lid body and the upper handle, and as the button on the upper handle is pressed, the locking mechanism moves left and right, thereby allowing the locking state of the lid and the rice cooker body to be changed using only the open button and the close button.

[0021] Second, the assembly body of the locking assembly that moves the locking member left and right is respectively provided with a protruding end linked to the button and an extension rod insertion hole linked to the locking member at the upper and lower ends, respectively, thereby simplifying the fastening structure that transmits button operation, making it easier to manufacture the pressure cooker.

[0022] Third, an axle fixing ball that is in close contact with a rotational support hole provided on the rotation axis of the locking assembly is provided on the upper handle, so that when the button is operated, the locking assembly is supported in a rotated state, thereby maintaining the locked or unlocked state of the lid, and

[0023] Fourth, the locking conveyor constituting the locking mechanism has a second locking conveyor seated on the upper part of the first locking conveyor, and a plurality of anti-detachment projections bent upwards are provided on the upper parts of both the front and rear sides, so that even if the locking conveyor is moved by the operation of a button, the state of being seated on the upper and lower parts is maintained, thereby maintaining the locking mechanism in a stable state. Brief explanation of the drawing

[0024] FIG. 1 is a drawing showing a pressure cooker lid opening and closing device according to the prior art, and FIG. 2 is a drawing showing the rice cooker body and lid separated according to the present invention, and FIG. 3 is a disassembled view of the lid according to the present invention, and FIG. 4 is a drawing illustrating an upper handle according to the present invention, and FIG. 5 is a drawing illustrating a locking assembly according to the present invention, and FIG. 6 is a drawing illustrating a locking mechanism according to the present invention, and FIG. 7 is a drawing illustrating the operation of a locking assembly and a locking mechanism according to the present invention, and FIG. 8 is a diagram showing the operation of the locking mechanism according to the present invention from a different direction. Specific details for implementing the invention

[0025] Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings.

[0026] A lid fastening structure for a pressure rice cooker according to the present invention, as illustrated in FIGS. 2 to 8, is a lid fastening structure for a pressure rice cooker that locks or unlocks the connection between a rice cooker body (1) and a lid (2), comprising: a lid body (10) in which a rubber packing (11) that adheres to the edge of the rice cooker body (1) is inserted into the lower edge; and an upper handle (20) coupled to the upper part of the lid body (10) and having a pair of buttons (21) that move up and down coupled to the central part. The locking part (30) is provided with a locking member (31) comprising a pair of locking transfer members (31a) that are positioned so as to overlap each other across the upper center of the lid body (10) and are bent downward from the upper part of the lid body (10) and extended, and a locking fastening member (31b) formed to face each other to lock both sides of the rim where the rice cooker body (1) and the lid (2) are in close contact, which are coupled to the lower part of the locking transfer member (31a).

[0027] Here, the upper part of the locking transfer member (31a) is interposed between the lid body (10) and the upper handle (20).

[0028] In addition, the locking part (30) is provided with a locking assembly (32) comprising a rotating shaft (32a) rotatably coupled to the lower surface of the upper handle (20) and a body (32b) coupled to the lower part of the rotating shaft (32a). Here, the rotating shaft (32a) and the body (32b) are formed integrally.

[0029] The above-mentioned bundle body (32b) has a cavity formed in the center and is provided with a shaft support end (321) extending upward to be coupled to the lower surface of the bundle rotation shaft (32a) on the upper surface, and a pair of protruding ends (322) protruding upward at a predetermined distance from the front and rear of the shaft support end (321), respectively, and a pair of extension rod insertion holes (323) are provided on the lower surface, which are inclined from the center to both sides so that the locking member (31) can be moved left and right. The extension rod insertion holes (323) are provided to be in communication with the central cavity.

[0030] Meanwhile, the locking transfer member (31a) is provided with a fastening extension rod (311) extending upward from the central upper surface so that its upper end is inserted into the extension rod insertion hole (323), thereby positioning the upper end of the fastening extension rod (311) in the central cavity. Here, both ends of the extension rod insertion hole (323) are provided to extend forward and backward so that when the fastening extension rod (311) is inserted, the inserted state is not transferred according to the tilted shape of the extension rod insertion hole (323).

[0031] And, the above-mentioned rotating shaft (32a) has a pair of rotational support holes (324) formed on each of its upper surfaces that are adjacent to each other and recessed downwards, and the upper handle (20) is provided with a shaft fixing ball (23) that is in contact with the rotational support holes (324) by the elastic force of a spring (S), so that when the fastening extension rod (311) is inserted into both ends of the extension rod insertion hole (323), the shaft fixing ball (23) is in contact with one of the rotational support holes (324) and is supported in a rotated state.

[0032] In addition, the upper handle (20) is provided with a pair of shaft fixing members (22) that wrap around the lower ends of the bundle rotation shaft (32a) and are coupled to the lower surface, so that the locking bundle (32) is fixed to the lower surface of the upper handle (20) so that it rotates around the bundle rotation shaft (32a).

[0033] Meanwhile, the upper handle (20) is provided with a ball seating groove (24) that is recessed from the bottom to the top so that the shaft fixing ball (23) and the spring (S) are seated thereon, and a transfer groove (25) that is recessed upward at both ends of the bottom so as to surround the top of the locking transfer member (31a). The locking transfer member (31a) is positioned such that its upper and lower surfaces are respectively placed at the bottom of the transfer groove (25) and the top of the lid body (10).

[0034] And, as previously explained, the shaft fixing ball (23) is pressed against one of the rotation support holes (324) by the elastic force transmitted from the upper spring (S) to fix the rotated state of the locking assembly (32).

[0035] Additionally, a pair of button insertion grooves (26) into which the button (21) is inserted are formed in the upper handle (20). The button (21) is provided with a pressing plate (21a) with its upper surface exposed upward, a pressing rod (21b) extending downward from the central lower part of the pressing plate (21a), a first spring (21c) inserted into the outer periphery of the pressing rod (21b) and supported on the inner surface of the button insertion groove (26), and anti-detachment members (21d) extending downward from the lower sides of both sides of the pressing plate (21a). Here, the anti-detachment members (21d) are in close contact with the side wall of the button insertion groove (26) and extend downward to prevent the button (21) from shaking in the button insertion groove (26).

[0036] In addition, the lower outer part of the above anti-detachment member (21d) is provided with a catch (211) protruding outwardly to catch on the lower surface of the upper handle (20), thereby preventing the button (21) from detaching to the upper part of the button insertion groove (26).

[0037] Meanwhile, the lid body (10) is provided with a pair of handle coupling members (12) that extend upward to be coupled with the upper handle (20). Here, the handle coupling members (12) extend upward from the upper surface of the lid body (10), and it is preferable that each extends correspondingly from the center of the lid body (10).

[0038] In addition, the lid body (10) is provided with a plurality of separate safety devices to maintain the internal pressure at a predetermined pressure while combined with the rice cooker body (1). Furthermore, the upper handle (20) is provided with an upper finishing member (20a) that is coupled with the handle coupling member (12), thereby allowing the upper handle (20) and the lid body (10) to be integrally combined.

[0039] In addition, the locking transfer member (31a) is provided with a through hole (30a) through which the handle coupling member (12) extends, thereby preventing the handle coupling member (12) from getting caught during left and right movement of the locking transfer member (31a).

[0040] Meanwhile, the above locking conveyor (31a) is composed of a first locking conveyor (41) positioned at the bottom when overlapping with each other, and a second locking conveyor (42) seated on the top of the first locking conveyor (41). The second locking conveyor (42) is provided with an extension rod protrusion hole (42a) that is extended in a lateral direction and has a through hole so that the fastening rod (311) of the first locking conveyor (41) is inserted and protrudes, thereby causing the first locking conveyor (41) and the second locking conveyor (42) to come into contact with each other and overlap.

[0041] In addition, the upper front and rear portions of the first locking transfer member (41) and the second locking transfer member (42) are provided with a plurality of anti-detachment projections (43) that are bent upward to prevent them from moving forward and backward while overlapping each other, thereby stably supporting the overlapping state.

[0043] The operation of the lid fastening structure for a pressure cooker according to the present invention, which is configured as described above, is as follows.

[0044] As shown in FIGS. 2 to 8, the lid fastening structure for a pressure rice cooker according to the present invention operates the locking part (30) by pressing the button (21) of the upper handle (20) to lock or unlock the connection between the rice cooker body (1) and the lid (2).

[0045] The above button (21) is inserted into the button insertion groove (26) of the upper handle (20) and consists of a lock button and an unlock button. When the above button (21) is pressed, one of the protruding ends (322) of the locking assembly (32) is pressed, and the locking assembly (32) rotates around the assembly rotation axis (32a).

[0046] The rotation of the above locking assembly (32) causes the extension rod insertion hole (323) provided on the lower surface of the assembly body (32b) to move the fastening extension rod (311) of the locking member (31) left and right, thereby causing the locking fastening member (31b) to lock or unlock the connection between the rice cooker body (1) and the lid (2).

[0047] And, the four rotation support holes (324) provided on the upper surface of the above-mentioned assembly rotation shaft (32a) are in close contact with the lower surface of the shaft fixing ball (23) coupled to the upper handle (20), thereby supporting the rotated state of the assembly rotation shaft (32a).

[0048] Meanwhile, the above-mentioned assembly rotation shaft (32a) is rotatably fixed to the upper handle (20) by the shaft fixing member (22) of the upper handle (20), so that the locking assembly (32) is coupled to the lower surface of the upper handle (20).

[0049] The locking conveyor (31a) of the locking member (31) linked to the locking assembly (32) is seated on the upper part of the lid body (10), thereby connecting the lid body (10) and the upper handle (20). At this time, the connecting slot (30a) formed in the locking conveyor (31a) is penetrated by the handle connecting member (12) extending upward from the lid body (10) and connected to the upper finishing member (20a) of the upper handle (20), so that the lid body (10), the upper handle (20), and the locking part (30) are integrally connected and connected to the upper part of the rice cooker body (1).

[0050] Meanwhile, the button (21) is provided with a pressing plate (21a), a pressing member (21b) at the bottom of the pressing plate (21a), a pair of anti-detachment members (21d), and a first spring (21c) inserted into the outer circumference of the pressing member (21b) so as to be inserted into the button insertion groove (26).

[0051] At this time, the catch (211) of the above-mentioned anti-detachment member (21d) is caught on the lower surface of the button insertion groove (26), so that it is prevented from being detached to the outside by the elastic force of the first spring (21c).

[0052] And, the locking conveyor (31a) is such that the first locking conveyor (41) and the second locking conveyor (42) overlap each other, and the second locking conveyor (42) is provided with an extension rod protrusion hole (42a) so that the fastening rod extension rod (311) of the first locking conveyor (41) is inserted and protrudes, thereby allowing the fastening rod extension rod (311) to be inserted into the extension rod insertion hole (323) of the bundle body (32b). At this time, the fastening rod extension rod (311) of the second locking conveyor (42) is extended so as to be inserted directly into the extension rod insertion hole (323).

[0053] Thus, the lid fastening structure for a pressure rice cooker according to the present invention has the advantage of allowing the user to conveniently use the rice cooker body (1) and the lid (2) by rotating the locking member (32) by operating the button (21), and the rotation of the locking member (32) moves the locking member (31) left and right to easily lock or unlock the rice cooker body (1) and the lid (2).

[0054] The present invention is not limited to the specific preferred embodiments described above, and anyone with ordinary knowledge in the art to which the invention pertains can make various modifications without departing from the essence of the invention as claimed in the claims, and such modifications will be within the scope of the claims. Explanation of the symbols

[0055] <Explanation of Symbols for Major Parts of the Drawing> 1 : Rice cooker body 2 : Lid 10 : Lid body 11 : Rubber gasket 12 : Handle connecting part 20 : Upper handle 20a : Top finish 21 : Button 21a : Pressing plate 21b : Pressing device 21c: 1st spring 21d: Anti-detachment 211 : Stopper 22 : Shaft fixing device 23 : Axis fixing ball 24 : Ball seating groove 25 : Transfer groove insertion groove 26 : Button insertion groove 30 : Locking part 30a : Connecting slot 31 : Locking part 31a : Locking transfer part 31b : Locking fastener 311 : Fastener extension rod 32: Locking mechanism 32a: Mechanism rotation axis 32b : Bundle body 321 : Shaft support 322 : Protruding end 323 : Extension rod insertion hole 324 : Rotating support hole 41 : First locking transfer hole 42 : 2nd locking transfer hole 42a : Extension rod protruding hole 43 : Anti-detachment S : Spring

Claims

Claim 1 In a pressure rice cooker lid fastening structure for locking or unlocking the connection between a rice cooker body (1) and a lid (2), the lid body (10) has a rubber packing (11) that is in close contact with the edge of the rice cooker body (1) and is inserted into the lower edge; and an upper handle (20) that is connected to the upper part of the lid body (10) and has a pair of buttons (21) connected to the central part that are moved up and down. A locking part (30) is provided with a locking member (31) comprising a pair of locking conveying members (31a) that are seated overlapping each other across the upper center of the lid body (10) and are bent downward from both sides of the lid body (10), and a locking fastening member (31b) formed to face each other and coupled to the lower end of the locking conveying member (31a) to lock both sides of the rim where the rice cooker body (1) and the lid (2) are in close contact; wherein the locking part (30) is provided with a locking assembly (32) comprising a assembly rotation shaft (32a) rotatably coupled to the lower surface of the upper handle (20) and an assembly body (32b) coupled to the lower part of the assembly rotation shaft (32a), wherein the assembly body (32b) has a cavity formed in the internal center and extends upward on its upper surface to be coupled to the lower surface of the assembly rotation shaft (32a). A shaft support member (321) and a pair of protruding members (322) are provided, each spaced apart by a predetermined distance from the front and rear of the shaft support member (321) and protruding upward; a pair of extension rod insertion holes (323) are provided on the lower surface, inclined from the center to both sides so that the locking member (31) can be moved left and right; a fastening member extension rod (311) is provided on the locking member (31a), extending upward from the central upper surface so that its upper end is inserted into the extension rod insertion holes (323); a pair of rotation support holes (324) are formed on both upper surfaces of the bundle rotation shaft (32a), adjacent to each other and recessed downward; a pair of shaft fixing members (22) are provided on the lower surface of the upper handle (20), which wrap around the lower ends of both ends of the bundle rotation shaft (32a), and a spring (S) is attached to the rotation support holes (324) by elastic force. A shaft fixing ball (23) is provided,The upper handle (20) is provided with a ball seating groove (24) that is recessed upward from the bottom so that the shaft fixing ball (23) and the spring (S) are seated thereon, and a transfer groove (25) that is recessed upward at both ends of the bottom so as to surround the upper part of the locking transfer member (31a). The shaft fixing ball (23) is in close contact with one of the rotation support holes (324) by the elastic force transmitted from the upper spring (S) to fix the rotated state of the locking assembly (32). The locking transfer member (31a) is composed of a first locking transfer member (41) positioned at the bottom and a second locking transfer member (42) seated on the upper part of the first locking transfer member (41). The second locking transfer member (42) is extended in a lateral direction and has a through hole so that the fastening extension rod (311) of the first locking transfer member (41) is inserted and protrudes. A pressure cooker lid fastening structure characterized by having an extension rod protruding hole (42a), and having a plurality of anti-detachment projections (43) bent upward at the front and rear ends of the first locking conveyor (41) and the second locking conveyor (42) to prevent forward and rear movement while overlapping each other. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 A pressure cooker lid fastening structure characterized in that, in the first paragraph, a pair of button insertion grooves (26) into which the button (21) is inserted are formed in the upper handle (20), and the button (21) is provided with a pressing plate (21a) having an upper surface exposed to the upper, a pressing rod (21b) extending downward from the central lower part of the pressing plate (21a), a first spring (21c) inserted into the outer circumference of the pressing rod (21b) and supported on the inner surface of the button insertion groove (26), and a release prevention member (21d) extending downward from both lower sides of the pressing plate (21a), and a catch projection (211) protruding outwardly to catch on the lower surface of the upper handle (20) is provided on the lower outer part of the release prevention member (21d). Claim 6 A pressure cooker lid fastening structure characterized in that, in the first paragraph, the lid body (10) is provided with a pair of handle coupling members (12) extending upward to be coupled with the upper handle (20), the upper handle (20) is provided with an upper finishing member (20a) coupled with the handle coupling member (12), and the locking member (31a) is provided with a coupling slot (30a) through which the handle coupling member (12) passes and extends. Claim 7 delete

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