Drawer refrigerator unlocking mechanism and vehicle-mounted refrigerator applying same

Abstract

The utility model discloses a drawer refrigerator unlocking mechanism which comprises an outer box body and a drawer, a storage cavity is arranged in the outer box body, the drawer is movably inserted in the storage cavity, a lock tongue is arranged on the front side of the outer side face of the drawer, a lock catch assembly capable of being connected with the lock tongue in an abutting and locking mode is arranged on the front side of the inner side face of the outer box body, and a lock catch is arranged on the outer box body, the unlocking assembly is arranged at the front end of the outer box body and enables the lock catch assembly and the spring bolt to be unlocked when the unlocking assembly moves, the driver is arranged on the outer box body, the output end of the driver is matched with the other end of the unlocking assembly to drive the unlocking assembly to move, the unlocking mechanism is arranged at the front end of the outer box body, and the size chain length of the locking mechanism is greatly shortened. The change of the clearance surface difference of the product under the condition of thermal expansion and cold contraction is reduced, the abnormal sound problem is avoided, and maintenance is convenient.

Description

[Technical Field]

[0001] This utility model relates to the field of cabinets, and particularly to the field of vehicle refrigerators, specifically a drawer refrigerator unlocking mechanism and a vehicle refrigerator using the same mechanism. [Background Technology]

[0002] A drawer-type car refrigerator consists of an outer casing and drawers mounted on it. To lock the drawers, a lock mechanism is needed between the outer casing and the drawers. Existing lock mechanisms are typically located at the rear of the refrigerator. An electric actuator pushes a push rod to move parallel, causing the locking pin to rotate and unlock. After unlocking, the actuator retracts, the locking pin's torsion spring returns to its original position, and the push rod returns to its original position. However, locating the unlocking mechanism at the rear of the refrigerator results in a longer locking mechanism chain, leading to greater variations in clearance due to thermal expansion and contraction. This results in poor sealing and unstable resistance in the telescopic structure, making it prone to abnormal noise. Furthermore, the rear-end location of the unlocking mechanism increases maintenance difficulty. [Utility Model Content]

[0003] This invention overcomes the shortcomings of the prior art and provides a drawer refrigerator unlocking mechanism located on the front side of the outer casing and a vehicle refrigerator using the unlocking mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A drawer refrigerator unlocking mechanism, characterized in that: it includes...

[0006] The outer casing has a storage compartment inside.

[0007] The drawer has a latch on the front side of its outer side, and the drawer is inserted into the storage cavity.

[0008] The latch assembly is located on the front side of the inner side of the outer casing, and the latch assembly can be engaged with the latch tongue.

[0009] The unlocking component is located on the outer casing. One end of the unlocking component engages with the latch component, and the latch component unlocks the bolt when the unlocking component moves.

[0010] The driver is mounted on the outer casing, and its output end works in conjunction with the other end of the unlocking component to drive the unlocking component to move.

[0011] The drawer refrigerator unlocking mechanism described above is characterized in that: the unlocking component includes a transmission link that can rotate on the outer casing and a link reset member that resets the transmission link; one end of the transmission link is located inside the outer casing and the other end is located outside the outer casing; an unlocking member that cooperates with the latch assembly is connected to the inner end of the transmission link located inside the outer casing; and a link protrusion that cooperates with the output end of the driver is provided on the outer side of the transmission link located outside the outer casing.

[0012] The drawer refrigerator unlocking mechanism described above is characterized in that: the unlocking component is a cam, the cam protrusion cooperates with the latch assembly, the transmission link is provided with two link protrusions on one side of the outer side of the outer casing, the driver output end cooperates with one of the link protrusions, the outer side of the outer casing is provided with a positioning protrusion and a positioning buckle near the transmission link, and the link reset component is a torsion spring, the torsion spring is sleeved on the positioning protrusion, one end of the torsion spring is fastened to the positioning buckle and the other end is fastened to the other link protrusion.

[0013] The drawer refrigerator unlocking mechanism described above is characterized in that: the upper end of the transmission connecting rod is provided with an outwardly extending connecting rod step, a sealing ring is sleeved on the upper side of the connecting rod step on the transmission connecting rod, the outer box is provided with a box through hole for the transmission connecting rod to pass through, and an annular surrounding plate is provided on the box through hole to cooperate with the connecting rod step to press the sealing ring.

[0014] The drawer refrigerator unlocking mechanism described above is characterized in that: the latch assembly includes a rotatable latch and a latch reset member for resetting the latch; the latch has a pivot portion and a lock head and a rotating head respectively disposed on the pivot portion; the latch is rotatably disposed on the inner side of the outer casing via the pivot portion; the lock head abuts and locks with the latch tongue; and the rotating head cooperates with one end of the unlocking member.

[0015] The drawer refrigerator unlocking mechanism described above is characterized in that: the latch assembly further includes a latch seat and a pin, the rotating shaft part is provided with a rotating shaft hole for mounting the pin, the latch is rotatably mounted on the latch seat through the rotating shaft hole and the pin, the latch reset component is a torsion spring, the torsion spring is mounted on the pin, one end of the torsion spring abuts against the latch seat and the other end is engaged with the latch.

[0016] The drawer refrigerator unlocking mechanism described above is characterized in that: the lock head is provided with a lock head guide slope inclined toward the lock tongue, and the front end face of the lock tongue is provided with a lock tongue guide slope that cooperates with the lock head guide slope.

[0017] The drawer refrigerator unlocking mechanism described above is characterized in that: a frame is provided on the outer casing at the drawer insertion end, and a locking component and an unlocking component are provided on the frame.

[0018] The drawer refrigerator unlocking mechanism described above is characterized in that: an outer cover for the cover-closing actuator is provided on the outer side of the outer casing.

[0019] A vehicle-mounted refrigerator is characterized by the application of the aforementioned drawer refrigerator unlocking mechanism.

[0020] The beneficial effects of this utility model are:

[0021] This utility model features a locking tongue on the front of the drawer, a latch assembly on the front of the outer casing that engages with the locking tongue, an unlocking assembly on the front of the outer casing that unlocks the latch assembly by rotation, and a driver that drives the unlocking assembly to rotate. By arranging the unlocking mechanism at the front of the outer casing, the length of the locking mechanism chain is greatly shortened, reducing changes in product gap surface differences due to thermal expansion and contraction, avoiding abnormal noise problems, and facilitating maintenance. At the same time, a sealing ring is fitted on the transmission link of the unlocking assembly to improve the sealing between the transmission link and the outer casing, preventing the outflow of condensate and cold air from inside the casing. [Image Description]

[0022] Figure 1 This is one of the schematic diagrams showing the outer casing and drawer of this utility model in a separated state;

[0023] Figure 2 This is one of the schematic diagrams showing the outer casing and drawer of this utility model in a separated state;

[0024] Figure 3 This is a structural diagram of the locking assembly of this utility model;

[0025] Figure 4 This is a structural diagram of the locking and unlocking components of this utility model;

[0026] Figure 5 This is a structural diagram of the unlocking component and driver of this utility model;

[0027] Figure 6 This is a cross-sectional view of the present invention;

[0028] Figure 7 for Figure 6 Enlarged view of section A in the middle. [Detailed Implementation]

[0029] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.

[0031] like Figure 1-7 As shown, a drawer refrigerator unlocking mechanism includes:

[0032] The outer casing 1 has a storage cavity 11 inside;

[0033] Drawer 2 has a latch 3 on the front side of its outer side, and drawer 2 is movably inserted into storage cavity 11;

[0034] The latch assembly 4 is located on the front side of the inner side of the outer housing 1, and the latch assembly 4 can abut and lock with the latch tongue 3.

[0035] Unlocking component 5 is set on the outer casing 1. One end of unlocking component 5 is engaged with locking component 4, and when unlocking component 5 moves, locking component 4 is unlocked from locking tongue 3.

[0036] The driver 6 is mounted on the outer casing 1. The output end of the driver 6 cooperates with the other end of the unlocking component 5 to drive the unlocking component 5 to move.

[0037] This case also discloses a vehicle refrigerator that uses the aforementioned drawer refrigerator unlocking mechanism.

[0038] A latch 3 is provided on the front side of the bottom of the drawer 2, and a locking assembly 4 and an unlocking assembly 5 for locking and unlocking the latch 3 are provided on the front side of the bottom of the outer casing 1. When the drawer 2 is closed, after the drawer 2 is pushed into the storage cavity 11 of the outer casing 1, the locking assembly 4 abuts and locks against the latch 3. When unlocking, the unlocking assembly 5 is pushed to rotate by the output end of the driver 6. The unlocking assembly 5 drives the locking assembly 4 to move, causing the locking assembly 4 and the latch 3 to separate and unlock, at which point the drawer 2 can be pulled out. This unlocking mechanism greatly shortens the length of the locking mechanism chain, reduces the change in product gap surface difference under thermal expansion and contraction, avoids abnormal noise problems, and facilitates maintenance.

[0039] like Figure 1-7 As shown, the unlocking assembly 5 includes a transmission link 51 that can rotate on the outer housing 1 and a link reset member 52 that resets the transmission link 51. One end of the transmission link 51 is located inside the outer housing 1, and the other end is located outside the outer housing 1. An unlocking member 53 that cooperates with the latch assembly 4 is connected to the inner end of the transmission link 51 on the outer housing 1. A link protrusion 54 that cooperates with the output end of the driver 6 is provided on the outer side of the transmission link 51. During unlocking, the output end of the driver 6 pushes the link protrusion 54 outward, causing the transmission link 51 to rotate. This causes the unlocking member 53, located inside the outer housing 1 and connected to the transmission link 51, to rotate synchronously. The unlocking member 53 then pushes the latch assembly 4 to rotate, separating the latch assembly 4 from the latch tongue 3 to achieve unlocking. After unlocking, the output end of the driver 6 retracts, and under the elastic action of the link reset member 52, it drives the transmission link 51 to rotate and reset, and also drives the unlocking member 53 to rotate and reset, thereby resetting the latch assembly 4.

[0040] like Figure 1-7As shown, in this case, the unlocking component 53 is a cam, and the cam protrusion cooperates with the locking assembly 4. The cam protrusion better enables the cam to accurately push the locking assembly 4 to rotate under the drive of the transmission link 51 to achieve unlocking.

[0041] like Figure 1-7 As shown, the transmission connecting rod 51 has two connecting rod protrusions 54 on one side of the outer side of the outer housing 1, and the two connecting rod protrusions 54 are arranged opposite each other on the outer side of the transmission connecting rod 51. The output end of the driver 6 cooperates with one of the connecting rod protrusions 54, and the contact surface between the connecting rod protrusion 54 and the output end of the driver 6 has outwardly extending ribs, so that the output end of the driver 6 can better push the connecting rod protrusion 54 to rotate, and drive the transmission connecting rod 51 to rotate.

[0042] like Figure 1-7 As shown, a positioning protrusion 55 and a positioning buckle 56 are provided on the outer side of the outer housing 1 near the transmission connecting rod 51. The connecting rod reset component 52 is a torsion spring. The torsion spring is sleeved on the positioning protrusion 55. One end of the torsion spring is fastened to the positioning buckle 56 and the other end is fastened to another connecting rod protrusion 54. After the output end of the driver 6 retracts, the torsion spring can better drive the transmission connecting rod 51 to rotate and reset through the other connecting rod protrusion 54.

[0043] like Figure 4 and Figure 7 As shown, the upper end of the transmission connecting rod 51 is provided with an outwardly extending connecting rod step 57. A sealing ring 58 is fitted on the upper side of the connecting rod step 57 on the transmission connecting rod 51. The outer housing 1 is provided with a housing through hole 12 for the transmission connecting rod 51 to pass through. The housing through hole 12 is provided with an annular surrounding plate 13 that cooperates with the connecting rod step 57 to press the sealing ring 58, thereby improving the sealing between the transmission connecting rod 51 and the outer housing 1 and preventing the outflow of condensate and cold air inside the housing.

[0044] like Figure 1 and Figure 3-4 As shown, the latch assembly 4 includes a rotatable latch 41 and a latch reset member 42 for resetting the latch 41. The latch 41 has a pivot portion 43 and a lock head 44 and a rotating head 45 respectively disposed on the pivot portion 43. The latch 41 is rotatably disposed on the inner side of the outer casing 1 via the pivot portion 43. The lock head 44 abuts against the latch 3 and locks in place, and the rotating head 45 engages with one end of the unlocking member 53. After the drawer 2 is pushed into the storage cavity 11 of the outer casing 1, the latch 3 disposed on the front side of the bottom edge of the drawer 2 engages with the lock head 44 of the latch 41 and locks it in place. When unlocking, the unlocking member 53 rotates and pushes the rotating portion 45 of the latch 41 to move, causing the latch 41 to rotate around the pivot portion 43, thereby causing the lock head 44 to rotate and separate from the latch 3 to achieve unlocking. After the unlocking member 53 resets, the latch 41 rotates and resets under the elastic force of the latch reset member 42.

[0045] like Figure 1 and Figure 3-4 As shown, the locking assembly 4 also includes a locking seat 46 and a pin 47. The rotating shaft part 43 is provided with a rotating shaft hole 48 for mounting the pin 47. The lock 41 is rotatably mounted on the locking seat 46 through the rotating shaft hole 48 and the pin 47, so that the lock 41 is rotatably mounted on the outer housing 1. The locking reset member 42 is a torsion spring, which is mounted on the pin 47. One end of the torsion spring abuts against the locking seat 46 and the other end is engaged with the lock 41. The torsion spring drives the lock 41 to rotate and reset.

[0046] like Figure 2-4 and Figure 7 As shown, the lock head 44 is provided with a lock head guide slope 49 inclined towards the bolt 3, and the front end face of the bolt 3 is provided with a bolt guide slope 410 that cooperates with the lock head guide slope 49. During the process of the drawer 2 being pushed into the storage cavity 11 of the outer box 1, the lock head guide slope 49 and the bolt guide slope 410 cooperate to lock the bolt 3 into contact with the lock head 44 of the latch 41.

[0047] like Figure 1-7 As shown, the outer casing 1 has a casing frame 14 located at the insertion end of the drawer 2. The locking assembly 4 and the unlocking assembly 5 are located on the casing frame 14 for easy assembly and maintenance.

[0048] like Figure 5 As shown, the outer casing 1 has an outer cover 7 that covers the driver 6, which serves to protect the driver 6.

[0049] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A drawer unlocking mechanism for a refrigerator, characterized in that: Including The outer casing (1) has a storage cavity (11) inside. Drawer (2), with a latch (3) on the front side of the outer side of the drawer (2), and the drawer (2) is movably inserted into the storage cavity (11); The latch assembly (4) is located on the front side of the inner side of the outer casing (1), and the latch assembly (4) can abut and lock with the latch (3); The unlocking component (5) is set on the outer casing (1). One end of the unlocking component (5) is engaged with the latch component (4), and the latch component (4) is unlocked from the latch (3) when the unlocking component (5) moves. The driver (6) is mounted on the outer casing (1). The output end of the driver (6) cooperates with the other end of the unlocking component (5) to drive the unlocking component (5) to move. The unlocking component (5) includes a transmission link (51) that can rotate on the outer housing (1) and a link reset component (52) that resets the transmission link (51). One end of the transmission link (51) is located inside the outer housing (1) and the other end is located outside the outer housing (1). The transmission link (51) located inside the outer housing (1) is connected to an unlocking component (53) that cooperates with the locking component (4). The transmission link (51) located outside the outer housing (1) is provided with a link protrusion (54) that cooperates with the output end of the driver (6). The latch assembly (4) includes a rotatable latch (41) and a latch reset member (42) for resetting the latch (41). The latch (41) has a pivot portion (43) and a lock head (44) and a rotating head (45) respectively disposed on the pivot portion (43). The latch (41) is rotatably disposed on the inner side of the outer housing (1) through the pivot portion (43). The lock head (44) abuts against the lock tongue (3) and locks in place. The rotating head (45) cooperates with one end of the unlocking member (53). The lock head (44) is provided with a lock head guide slope (49) that is inclined toward the lock tongue (3), and the front end face of the lock tongue (3) is provided with a lock tongue guide slope (410) that cooperates with the lock head guide slope (49).

2. The drawer refrigerator unlocking mechanism according to claim 1, characterized in that: The unlocking component (53) is a cam, and the cam protrusion cooperates with the locking assembly (4). The transmission link (51) is located on the outer side of the outer housing (1) and has two link protrusions (54). The output end of the driver (6) cooperates with one of the link protrusions (54). The outer side of the outer housing (1) near the transmission link (51) is provided with a positioning protrusion (55) and a positioning buckle (56). The link reset component (52) is a torsion spring. The torsion spring is sleeved on the positioning protrusion (55). One end of the torsion spring is fastened to the positioning buckle (56) and the other end is fastened to the other link protrusion (54).

3. The drawer refrigerator unlocking mechanism according to claim 1, characterized in that: The upper end of the transmission connecting rod (51) is provided with an outwardly extending connecting rod step (57), and a sealing ring (58) is fitted on the upper side of the connecting rod step (57) on the transmission connecting rod (51). The outer housing (1) is provided with a housing through hole (12) for the transmission connecting rod (51) to pass through, and an annular surrounding plate (13) is provided on the housing through hole (12) to cooperate with the connecting rod step (57) to press the sealing ring (58).

4. The drawer refrigerator unlocking mechanism according to claim 1, characterized in that: The locking assembly (4) also includes a locking seat (46) and a pin (47). The rotating shaft part (43) is provided with a rotating shaft hole (48) for mounting the pin (47). The lock (41) is rotatably mounted on the locking seat (46) through the rotating shaft hole (48) and the pin (47). The locking reset part (42) is a torsion spring, which is mounted on the pin (47). One end of the torsion spring abuts against the locking seat (46) and the other end engages with the lock (41).

5. A drawer refrigerator unlocking mechanism according to claim 1, characterized in that: The outer box (1) has a box frame (14) located at the insertion end of the drawer (2), and the locking assembly (4) and unlocking assembly (5) are set on the box frame (14).

6. The drawer refrigerator unlocking mechanism according to claim 1, characterized in that: The outer casing (1) is provided with an outer cover (7) for the drive (6).

7. A vehicle-mounted refrigerator, characterized in that... The drawer refrigerator unlocking mechanism of any one of claims 1 to 6 is applied.

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