CN214659467U - Door lock mechanism and refrigerator comprising same - Google Patents

Abstract

The utility model provides a door lock mechanism and refrigerator comprising the same, the door lock mechanism comprises an operation assembly, an upper lock catch mechanism and a lower lock catch mechanism, wherein the lower lock catch mechanism and the upper lock catch mechanism are symmetrically arranged, the operation assembly comprises a pressing piece and a shell for fixing the pressing piece, the upper lock catch mechanism comprises an upper connecting rod mechanism and an upper lock catch assembly, the upper lock catch assembly comprises an upper lock head and an upper lock head chamber for placing the upper lock head, the lower lock catch mechanism comprises a lower connecting rod mechanism and a lower lock catch assembly, and the lower lock catch assembly comprises a lower lock head and a lower lock head chamber for placing the lower lock head; the four-point fixed refrigerator door is realized by the two locking points of the upper lock head and the lower lock head on one side of the refrigerator door and the two hinge points on the other side, so that the door body of the refrigerator cannot be tilted when the refrigerator vibrates and is collided with internal articles, the sealing failure caused by the deformation of the door body cannot occur, and the accelerated loss of cold air in the refrigerator is prevented.

Description

Door lock mechanism and refrigerator comprising same

Technical Field

The utility model relates to a refrigerator tool to lock technical field, concretely relates to latch mechanism reaches refrigerator including this mechanism.

Background

The refrigerator is one of important household appliances in daily life, meat, vegetables, fruits and other food are stored in the refrigerator, and particularly, the refrigerator in the home plays a very important role when the food is easy to deteriorate in summer. When food in the refrigerator is taken, the door of the refrigerator needs to be opened first, then the food is taken out, then the door is closed, and the door is opened and closed repeatedly, so that certain requirements are met on the reasonability of the structural design of the door lock of the door, however, in the prior art, the door is generally connected with the refrigerator in a magnetic suction or single-point locking manner, and a door body is easy to deform (such as single-angle tilting of the door body) in the using process to cause poor sealing, so that the door cannot be well connected with the refrigerator when the door is closed, thereby causing the rapid loss of cold air in the refrigerator and increasing the power consumption of the refrigerator.

Therefore, it is necessary to develop a door lock mechanism and a refrigerator including the same to overcome at least one of the above-mentioned disadvantages.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a door lock mechanism and a refrigerator including the same, which aims to solve the problem of easy deformation of the door body in the prior art.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a door lock mechanism, include: an operating assembly including a pressing piece and a housing for fixing the pressing piece; the upper lock catch mechanism is connected with the pressing piece and comprises an upper connecting rod mechanism and an upper lock assembly, and the upper lock assembly comprises an upper lock head and an upper lock head chamber for placing the upper lock head; the lower locking mechanism is connected with the pressing piece and symmetrically arranged with the upper locking mechanism, the lower locking mechanism comprises a lower connecting rod mechanism and a lower locking assembly, and the lower locking assembly comprises a lower lock head and a lower lock head chamber for placing the lower lock head.

Further, the upper link mechanism includes a first "Z" -shaped link having one end slidably connected to the pressing member and the other end connected to one end of the first straight link, and a first straight link having the other end connected to the upper head chamber.

Furthermore, the lower connecting rod mechanism comprises a second Z-shaped connecting rod and a second straight connecting rod, one end of the second Z-shaped connecting rod is connected with the pressing piece in a sliding mode, the other end of the second Z-shaped connecting rod is connected with one end of the second straight connecting rod, and the other end of the second straight connecting rod is connected with the lower lock cylinder chamber.

Furthermore, one end of the first straight connecting rod is provided with a first through hole, the other end of the first straight connecting rod is provided with a first through hole, one end of the second straight connecting rod is provided with a second through hole, and the other end of the second straight connecting rod is provided with a second through hole.

Furthermore, one end of the first Z-shaped connecting rod is provided with a first inclined block along the direction close to the pressing piece, the inner side surface of the first inclined block is a first inclined surface, the other end of the first Z-shaped connecting rod is provided with a first bulge opposite to the first inclined block in the direction, the first bulge is arranged in the first penetrating hole in a penetrating mode, and the middle end of the first Z-shaped connecting rod is provided with a first limit stop.

Furthermore, a second inclined block is arranged at one end of the second Z-shaped connecting rod along the direction close to the pressing piece, the inner side face of the second inclined block is a second inclined face, a second protrusion in the direction opposite to the second inclined block is arranged at the other end of the second Z-shaped connecting rod, the second protrusion penetrates through the second penetrating hole, and a second limit stop is arranged at the middle end of the second Z-shaped connecting rod.

Further, a cavity is formed in the pressing piece, a force application block is arranged in the cavity, the outer wall surface of the force application block is arc-shaped, and the pressing piece is in contact with the first inclined surface and the second inclined surface through the force application block.

Further, the casing includes shell body and interior casing, offer the trompil that is used for pressing the pressing piece on the shell body, offer the spacing hole of first spacing hole that is used for placing first limit stop and the spacing hole of second that is used for placing second limit stop on the interior casing.

Furthermore, the upper lock head comprises an upper lock head part and an upper sliding part, wherein an upper U-shaped opening is formed in the upper sliding part along one end far away from the upper lock head part, and a lug is arranged at the tail end of the upper U-shaped opening along the direction perpendicular to the inner surface of the upper lock head chamber.

The utility model also provides a refrigerator, including chamber door and door lock mechanism, door lock mechanism installs on the chamber door, door lock mechanism includes above arbitrary one lock mechanism.

The utility model has the advantages that:

when the pressing piece is pressed down, the pressing piece drives the first inclined block and the second inclined block to move, the upper lock head and the lower lock head respectively contract in the upper lock catch chamber and the lower lock catch chamber through transmission of the upper connecting rod and the lower connecting rod, so that a refrigerator door body is opened, when the pressing piece is released, the upper lock head and the lower lock head automatically reset, and when the door is closed, the upper lock head and the lower lock head reset through resilience of the elastic piece, so that the door body is locked; the four-point fixed refrigerator door is realized by the two locking points of the upper lock head and the lower lock head on one side of the refrigerator door and the two hinge points on the other side, so that the door body of the refrigerator cannot be tilted when the refrigerator vibrates and is collided with internal articles, the sealing failure caused by the deformation of the door body cannot occur, and the accelerated loss of cold air in the refrigerator is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and that other drawings can be obtained by those skilled in the art without inventive exercise.

Fig. 1 is a front isometric view of a latch mechanism according to one embodiment of the present application;

FIG. 2 is a side isometric view of a door lock mechanism according to one embodiment of the present application; (ii) a

FIG. 3 is a schematic view illustrating an assembly structure of a lower link and a pressing member according to a second embodiment of the present disclosure;

FIG. 4 is an isometric view of a fourth door of the present application in accordance with an embodiment of the present application

Fig. 5 is a schematic structural diagram of an upper lock head in the third embodiment of the present application.

Reference numerals:

1: an operating component; 2: an upper lock mechanism; 3: a lower locking mechanism; 11: a pressing member; 21: an upper connecting rod; 22: an upper locking head assembly; 31: a lower connecting rod; 32: a lower lock head component; 121: an upper housing; 122: a lower housing; 221: an upper lock head; 2211: locking the head; 22111: an upper inclined plane; 2212: an upper sliding part; 22121: an upper bump; 222: an upper lock head chamber; 223: an upper connecting lug; 211: a first "Z" -shaped link; 2112: a first protrusion; 212: a first straight connecting rod; 311: a second Z-shaped connecting rod; 3111: a second swash block; 31111: a second inclined plane; 3112: a second protrusion; 312: a second straight connecting rod; 3121: a second penetration hole; 3122: a second through hole; 321: a lower lock head; 322 lower lock head chamber; 323: and a lower connecting lug.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be described more fully hereinafter with reference to the non-limiting exemplary embodiments shown in the accompanying drawings and detailed in the following description, taken in conjunction with the accompanying drawings, which illustrate, more fully, the exemplary embodiments of the present disclosure and their various features and advantageous details. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale. The present disclosure omits descriptions of well-known materials, components, and process techniques so as not to obscure the example embodiments of the present disclosure. The examples given are intended to facilitate an understanding of implementations of example embodiments of the disclosure and to further enable those of ordinary skill in the art to practice example embodiments. Thus, these examples should not be construed as limiting the scope of the embodiments of the disclosure.

Unless otherwise specifically defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. All references to up, down, left, right, etc. in this document are to be interpreted as referring to the up, down, left, right, etc. directions in fig. 1 of the present invention, and the use of "first," "second," "third," and the like do not imply any order, quantity, or importance, but rather the terms first, "" second, "" third, "and the like are used to distinguish one element from another. Further, in the various embodiments of the present disclosure, the same or similar reference numerals denote the same or similar components.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Example one

Referring to fig. 1, 2 and 3, the present application provides a door lock mechanism, which includes an operating assembly 1 at a middle portion thereof, an upper latch mechanism 2 at an upper portion, and a lower latch mechanism 3 at a lower portion; the upper locking mechanism 2 and the lower locking mechanism 3 are both connected with the pressing piece 1; the upper locking mechanism and the lower locking mechanism 3 are symmetrically arranged; the upper latch mechanism 2 includes an upper link mechanism 21 and an upper latch assembly 22 including an upper lock head 221 and an upper lock head chamber 222 for placing the upper lock head 221; this lower locking mechanism 3 includes lower link mechanism 31 and lower locking subassembly 32, lower locking subassembly 32 includes lock head 321 down and is used for putting lower lock head room 322 of lock head 321 down, furthermore, be provided with first sloping block on the last link mechanism 21, as shown in fig. 3, be provided with second sloping block 3111 on the lower link mechanism 31, the inside of pressing member 1 is formed with the die cavity, be provided with application of force piece 111 and spacing post in the die cavity, spacing post sets up on application of force piece 111, application of force piece 111 and first sloping block, second sloping block 3111 looks butt, first sloping block and second sloping block 3111 are located the both sides of spacing post.

It should be noted that the operating assembly 1 in this embodiment includes a pressing member 11 and a housing for supporting and fixing the same, the housing includes an upper housing 121 and a lower housing 122, an opening for accommodating the pressing member 11 is provided in the middle of the upper housing 121, screw holes for fixing on a door frame are provided on the side edges of the upper housing, and connection posts for connecting with the lower housing 122 are provided at two pairs of angular positions on the inner side of the upper housing; the middle part of the lower shell 122 is provided with a limiting hole, the middle parts of the two ends of the lower shell are provided with a first limiting channel and a second limiting channel, and two opposite corners of the lower shell are provided with threaded holes corresponding to the connecting columns of the upper shell; press down pressing part 11 and remove through the trompil, this pressing part 11's inside is formed with the die cavity, be provided with application of force piece 111 and spacing post in the die cavity, the one end setting of this spacing post is at application of force piece 111 middle part and integrated into one piece, the other end wears to locate down the spacing downthehole at casing 122 middle part, when pressing part 1, spacing post removes along spacing hole, it is located the centre of first sloping block and second sloping block 3111, play the effect that first sloping block and second sloping block 3111 can not interfere with each other, first sloping block, second sloping block 3111 moves on application of force piece along length direction.

According to the technical scheme of the embodiment, when the pressing piece 1 is pressed down, the pressing piece 1 drives the first inclined block 3111 and the second inclined block 3111 to move, the upper lock head 221 and the lower lock head 321 respectively retract into the upper lock catch chamber 222 and the lower lock catch chamber 322 through transmission of the upper link mechanism 21 and the lower link mechanism 31, so that the refrigerator door body is opened, when the pressing piece 1 is released, the upper lock head 221 and the lower lock head 321 automatically reset, and when the door is closed, the upper lock head 221 and the lower lock head 321 rebound and reset through an elastic piece (not shown) to lock the door body; as shown in fig. 4, the four-point fixing of the door 10 is realized by the two locking points of the upper locking head 221 and the lower locking head 321 on one side of the door 10 and the two hinge points 101 and 102 on the other side, so that the door body does not tilt up when the refrigerator vibrates and the internal articles collide, and the sealing failure caused by the deformation of the door body is avoided, thereby preventing the accelerated loss of cold air in the refrigerator.

As shown in fig. 2, as a specific embodiment, the upper link mechanism 21 in this embodiment includes a first "Z" shaped link 211 and a first straight link 212, the first inclined block is disposed at one end of the first "Z" shaped link 311 and abuts against the outer wall surface of the force application block 111, the other end is provided with a first protrusion 2112, the first protrusion 2112 is inserted into the first penetrating hole 2121 to be connected to the first straight link 212, the middle end is provided with a first limit stopper 2113, and the first limit stopper 2113 is located in the first limit slideway 1221 of the lower housing 122 and moves in the length direction; further, the first straight link 212 is connected to the first zigzag link 211 through the first through hole 2121 at one end thereof, and the first straight link 212 is pin-connected to the upper lock chamber 222 through the first through hole at the other end thereof.

As shown in fig. 2 and 3, as a specific embodiment, the lower link mechanism 31 in this embodiment includes a second "Z" -shaped link 311 and a second straight link 312, a second inclined block 3111 is disposed at one end of the second "Z" -shaped link 311 and is abutted against the outer wall surface of the force application block 111, a second protrusion 3112 is disposed at the other end, the second protrusion 3112 is inserted into the second through hole 3121 to be connected to the second straight link 212, a second limit stopper 3113 is disposed at the middle end, and the second limit stopper 3113 is located in a second limit slide 1222 of the lower housing 122 and moves in the length direction; further, the second straight link 312 is connected to the second zigzag link 311 through the second penetration hole 3121 at one end thereof, and the second straight link 312 is pin-connected to the lower head chamber 322 through the second penetration hole 3122 at the other end thereof.

Example two

Referring to fig. 1, 2 and 5, the upper lock head 221 in this embodiment includes an upper lock head 2211 and an upper slider 2212, and further, the upper slider 2212 is provided with an upper U-shaped opening along an end far from the upper lock head 2211, a distal end of the upper U-shaped opening extends outward to form an upper protrusion 22121, the upper protrusion 22121 plays a role of limiting in the sliding direction in the upper lock head chamber 223, and the upper U-shaped opening is provided: on one hand, the upper lock 221 is easy to be installed, the upper U-shaped opening is made of a material with certain elasticity and toughness, and on the other hand, the elastic member (not shown) is easy to be inserted and connected, and further preferably, the upper lock head 2211 is provided with an upper inclined surface 22111, and similarly, the embodiment of the upper lock 221 is applicable to the embodiment of the lower lock 321.

EXAMPLE III

As shown in fig. 3, as a specific embodiment, the first sloping block of the present embodiment is provided with a first inclined surface, the second sloping block 3111 is provided with a second inclined surface 31111, the outer wall surface of the force application block 111 is in a circular arc shape, the pressing member 11 contacts with the first inclined surface 31111 and the second inclined surface 31111 through the outer wall surface of the force application block 111, and it should be noted that the contact area is reduced by the circular arc shape contacting with the first inclined surface 31111 and the second inclined surface 31111 as a line contact, so that the pressing member 11 can be pressed by a small force to drive the up-and-down lock cylinder to move. Of course, in other embodiments, the outer wall surface of the force application block 111 may have other shapes, and may be provided according to specific use conditions, which is not limited herein.

Example four

As shown in fig. 1, 2 and 4, the present embodiment provides a refrigerator including a door 10 and a door lock mechanism provided in one side of the door 10, the door lock mechanism including the door lock mechanism of any one of the first embodiment; the upper locking assembly 22 and the lower locking assembly 32 are respectively located at two corners of one side of the door 10, and are connected with the door 10 through the upper engaging lug 223 and the lower engaging lug 323, and are fixedly connected with the door frame through screw holes on the side edge of the upper shell 121, when the pressing piece 1 is pressed down, the pressing piece 1 drives the first inclined block 3111 and the second inclined block 3111 to move, through the transmission of the upper link mechanism 21 and the lower link mechanism 31, the upper locking head 221 and the lower locking head 321 respectively retract into the upper lock chamber 222 and the lower lock chamber 322, so as to open the refrigerator door body, when the pressing piece 1 is released, the upper locking head 221 and the lower locking head 321 automatically reset, and when the door is closed, the upper locking head 221 and the lower locking head 321 rebound and reset through the elastic piece, so as to lock the door body; as shown in fig. 4, the four-point fixing of the door 10 is realized by the two locking points of the upper locking head 221 and the lower locking head 321 on one side of the door 10 and the two hinge points 101 and 102 on the other side, so that the door body does not tilt up when the refrigerator vibrates and the internal articles collide, and the sealing failure caused by the deformation of the door body is avoided, thereby preventing the accelerated loss of cold air in the refrigerator.

It should be noted that, door lock mechanism can also use the place that needs opened and shut such as cabinet door or room door to be convenient for open or the locking of cabinet door or room door, door lock mechanism specifically can set up according to specific in service behavior, does not do the restriction here to door lock mechanism's position of use.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and those skilled in the art can make various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A door lock mechanism, comprising:

an operating assembly (1), the operating assembly (1) comprising a press (11) and a housing for fixing the press (11);

the upper lock mechanism (2) is connected with the pressing piece (11), the upper lock mechanism (2) comprises an upper connecting rod mechanism (21) and an upper locking assembly (22), and the upper locking assembly (22) comprises an upper lock head (221) and an upper lock head chamber (222) for placing the upper lock head (221);

lower locking mechanism (3), lower locking mechanism (3) with pressing piece (11) are connected, and with last locking mechanism (2) symmetry sets up, lower locking mechanism (3) include lower link mechanism (31) and lower locking subassembly (32), lower locking subassembly (32) include lock head (321) down and be used for placing lower lock head room (322) of lock head (321) down.

2. A door lock mechanism according to claim 1, wherein: the upper link mechanism (21) includes a first Z-shaped link (211) and a first straight link (212), one end of the first Z-shaped link (211) is slidably connected to the pressing member (11), the other end of the first Z-shaped link is connected to one end of the first straight link (212), and the other end of the first straight link (212) is connected to the upper lock head chamber (222).

3. A door lock mechanism according to claim 2, wherein: the lower connecting rod mechanism (31) comprises a second Z-shaped connecting rod (311) and a second straight connecting rod (312), one end of the second Z-shaped connecting rod (311) is connected with the pressing piece (11) in a sliding mode, the other end of the second Z-shaped connecting rod is connected with one end of the second straight connecting rod (312), and the other end of the second straight connecting rod (312) is connected with the lower lock head chamber (322).

4. A door lock mechanism according to claim 3, wherein: one end of the first straight connecting rod (212) is provided with a first penetrating hole (2121), the other end of the first straight connecting rod is provided with a first through hole, one end of the second straight connecting rod (312) is provided with a second penetrating hole (3121), and the other end of the second straight connecting rod is provided with a second through hole (3122).

5. A door lock mechanism according to claim 4, wherein: one end of the first Z-shaped connecting rod (211) is provided with a first inclined block along the direction close to the pressing piece (11), the inner side surface of the first inclined block is a first inclined surface, the other end of the first Z-shaped connecting rod (211) is provided with a first bulge (2112) opposite to the first inclined block in direction, the first bulge (2112) penetrates through the first penetrating hole (2121), and the middle end of the first Z-shaped connecting rod (211) is provided with a first limit stop (2113).

6. A door lock mechanism according to claim 5, wherein: one end of the second Z-shaped connecting rod (311) is provided with a second inclined block (3111) along the direction close to the pressing piece (11), the inner side surface of the second inclined block (3111) is provided with a second inclined surface (31111), the other end of the second inclined block (3111) is provided with a second protrusion (3112) opposite to the second inclined block (3111), the second protrusion (3112) penetrates through the second penetrating hole (3121), and the middle end of the second Z-shaped connecting rod (311) is provided with a second limit stop (3113).

7. A door lock mechanism according to claim 6, wherein: a cavity is formed in the pressing piece (11), a force application block (111) is arranged in the cavity, the outer wall surface of the force application block (111) is arc-shaped, and the pressing piece (11) is in contact with the first inclined surface and the second inclined surface (31111) through the force application block (111).

8. A door lock mechanism according to claim 7, wherein: the casing includes shell body (121) and interior casing (122), offer the trompil that is used for pressing piece (11) on shell body (121), offer first spacing hole (1221) that is used for placing first limit stop (2113) and be used for placing second limit stop (1222) on interior casing (122).

9. A door lock mechanism according to claim 1, wherein: the upper lock head (221) comprises an upper lock head (2211) and an upper sliding part (2212), the upper sliding part (2212) is provided with an upper U-shaped opening along one end far away from the upper lock head (2211), and the tail end of the upper U-shaped opening is provided with an upper bump (22121) along the direction vertical to the inner surface of the upper lock head chamber (222); the lower lock head (321) comprises a lower lock head part and a lower sliding part, a lower U-shaped opening is formed in the lower sliding part along one end far away from the lower lock head part, and a lower protruding block is arranged at the tail end of the lower U-shaped opening in the direction perpendicular to the inner surface of the lower lock head chamber.

10. A refrigerator comprising a door and a door lock mechanism mounted on the door, characterized in that the door lock mechanism comprises the door lock mechanism of any one of claims 1 to 9.

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