Double-door mechanical interlocking device of vehicle-mounted refrigerator and vehicle-mounted refrigerator

Abstract

This invention discloses a double-door mechanical interlock device for a vehicle-mounted refrigerator and the refrigerator itself. The aim is to provide a mechanical interlock structure to address safety hazards such as hand pinching and object jamming in current double-door vehicle-mounted refrigerators, thereby improving the user experience. It includes: a drawer lock hook device comprising: a lock groove on the drawer door; a lock hook rotatably mounted on the refrigerator body; a first elastic element driving the lock hook to rotate so that the lock hook engages within the lock groove; and a drawer interlock mechanism comprising: a lock hook blocking block slidably mounted on the refrigerator body; a second elastic element; and a sliding pressure member slidably mounted on the refrigerator body. When the drawer door is closed and the flip-top door is open, the lock hook blocking block moves towards the lock hook under the action of the second elastic element and restricts the rotation of the lock hook, preventing the lock hook from disengaging from the lock groove. When the flip-top door is closed, the sliding pressure member drives the lock hook blocking block to move, releasing the restriction on the rotation of the lock hook.

Description

Technical Field

[0001] This invention relates to the field of vehicle refrigerator technology, specifically to a double-door mechanical interlock device for a vehicle refrigerator and a vehicle refrigerator. Background Technology

[0002] In recent years, the technological development of car refrigerators has enhanced the user experience for car owners in areas such as outdoor camping and long-distance road trips, including food preservation. To meet users' diverse functional needs for car refrigerators, various research and development efforts have been conducted. Among these, to ensure convenient access from different directions, double-door car refrigerators with both flip-top and drawer doors have gradually entered consumers' lives. Compared to single-door car refrigerators and traditional double-door refrigerators, this double-door (flip-top and drawer door) design allows front-seat drivers and front-passengers, as well as rear passengers, to access items from the refrigerator with minimal movement. Front-seat drivers access items through the flip-top door (which rotates and is located on the top of the refrigerator), while rear passengers access items through the drawer door (which faces forward or backward on the refrigerator and connects to a drawer). For example, Chinese Patent Publication No. CN223807444U describes an invention entitled "A Refrigerator with a Drawer and Flip-Top Mechanism." The front of the refrigerator has a door that slides into the refrigerator body via a sliding frame. Items can be accessed by pulling out the sliding frame and the internal compartments, which are then pulled out like a drawer. A flip-top lid is also installed on the top of the refrigerator body, allowing items to be accessed by opening the lid. However, this type of double-door refrigerator currently has the following drawbacks: There are potential safety hazards. Since the flip-top door and drawer doors are typically positioned vertically or front-to-back, opening both doors simultaneously can lead to several issues. Not only might items be unreachable from the flip-top side when the drawer is pulled out, but pulling the drawer door outwards while retrieving items from the flip-top can also cause fingers to get caught or items to become stuck. Furthermore, once the drawer is open, debris can easily enter the refrigerator's interior through the flip-top door, increasing cleaning difficulty. All of this significantly reduces the user experience and creates a range of safety risks.

[0003] The existing electrical interlock technology requires the use of an electric lock box mechanism and sensors, which not only requires continuous power supply and increases energy consumption, but also prevents the refrigerator from opening after power is cut off inside the vehicle, affecting the user experience; moreover, in the humid and vibrating environment inside the vehicle, the electrical interlock technology is at risk of reduced reliability.

[0004] In view of this, for vehicle refrigerators that pursue energy conservation and reliability, it is more practical to develop a purely mechanical interlocking structure that does not rely on electronic control. Summary of the Invention

[0005] The purpose of this invention is to provide a mechanical interlocking device for the double doors of a vehicle refrigerator that solves the operational safety hazards such as hand pinching and object jamming in current vehicle-mounted double-door refrigerators, and effectively improves the user experience.

[0006] The technical solution of this invention is: A double-door mechanical interlock device for a vehicle-mounted refrigerator, the vehicle-mounted refrigerator including a refrigerator body, a flip door, and a drawer door, comprising: Drawer locking mechanism, including: Lock slot, located on drawer door; The locking hook is rotatably mounted on the refrigerator body; The first elastic element drives the lock hook to rotate so that the lock hook engages in the lock groove; Drawer interlocking mechanism, including: The locking hook block is slidably mounted on the refrigerator body; Second elastic element; The sliding pressure component is slidably mounted on the refrigerator body and linked with the flip-top door; When the drawer door is closed and the flip door is in the open state, the locking hook block moves towards the locking hook under the action of the second elastic element and restricts the rotation of the locking hook so that the locking hook cannot disengage from the locking groove. When the flip door is closed, the sliding pressure component drives the lock hook stop block to move, thereby releasing the restriction on the rotation of the lock hook. The specific operation of the double-door mechanical interlock device for the vehicle refrigerator in this solution is as follows: When both the flip-top door and drawer door are closed, the user can freely choose to open either door. When the flip-top door is opened, the drawer interlock mechanism restricts the hook's rotation, preventing it from disengaging from the lock groove (it cannot be forced out of the groove by external force), thus locking the drawer door and preventing it from opening. This avoids safety hazards such as fingers getting caught or items getting stuck when retrieving items from the flip-top door, and also prevents situations where there is nothing to retrieve from the flip-top door after it has been pulled out, effectively improving the user experience. Furthermore, the drawer interlock mechanism uses a mechanical interlock structure, which is energy-efficient and reliable as it does not rely on electronic control.

[0007] Preferably, it also includes a flip-top door interlock mechanism, comprising: The latch is rotatably mounted on the refrigerator body via a latch shaft. A slot that engages with the latch is located on the flip door; Third elastic element; Push plate, located on the latch shaft; When the flip door is closed and the drawer door is opened, the third elastic element drives the bolt to rotate so that the bolt engages with the slot. When the drawer door is closed, the push plate rests against the drawer or drawer door, causing the latch shaft and latch to rotate, thus disengaging the latch from the slot. The specific operation of the flip-top door interlock mechanism in this solution is as follows: When both the flip-top door and drawer door are closed, the user can freely choose to open either door.

[0008] When the drawer door is opened, the third elastic element of the flip-top interlock mechanism drives the bolt to rotate, causing the bolt to engage in the slot (preventing the flip-top door from being opened by external force), thus locking the flip-top door in place. This prevents external debris from accidentally entering the refrigerator's interior area outside the drawer after the drawer is pulled out and the flip-top door is opened, increasing cleaning difficulty, and also avoids the situation where there is nothing to retrieve from the flip-top side after the drawer has been pulled out and the flip-top door is reopened. This effectively improves the user experience. Furthermore, the flip-top interlock mechanism uses a mechanical interlock structure, which does not rely on electronic control and is characterized by energy saving and reliability.

[0009] Preferably, the latch extends radially along the latch axis, with the side of the latch away from the latch axis positioned to engage with the slot. When the flip door is closed and the drawer door is opened, the third elastic element drives the latch to rotate, causing the tongue to engage with the slot. Because the latch extends radially along the latch axis, and the tongue engaging with the slot is positioned on the side of the latch away from the latch axis, the tongue can achieve a large linear travel with only a small rotation angle. Thus, when the drawer door is slightly opened, the third elastic element can drive the latch to rotate, causing the tongue to achieve a large linear travel, allowing the tongue to quickly engage with the slot and lock the flip door in time.

[0010] Preferably, the push plate extends radially along the locking tongue axis, and the outer wall of the drawer is provided with a push block that cooperates with the push plate; when the drawer door is closed, the push plate abuts against the push block, and the locking tongue disengages from the slot.

[0011] As a preferred embodiment, the drawer interlocking mechanism also includes: The gear is fixed to the flip door and is coaxial with the flip door's pivot. The sliding pressure member is provided on the rack that meshes with the gear, and the locking hook block is provided with an unlocking protrusion; When the drawer door is closed, during the opening of the flip door, the gear drives the sliding pressure member to move through the rack, causing the sliding pressure member to separate from the lock hook block, thereby causing the lock hook block to move towards the lock hook under the action of the second elastic element and restricting the rotation of the lock hook; When the flip door is closed, the gear drives the sliding pressure piece to move through the rack, so that the sliding pressure piece abuts against the unlocking protrusion and drives the lock hook block away from the lock hook, thereby releasing the restriction on the rotation of the lock hook.

[0012] Preferably, the gear has only one or more teeth, and the number of teeth of the gear is less than the number of teeth of the rack; During the opening of the flip door, the gear drives the sliding pressure component to move via the rack, causing the sliding pressure component to separate from the locking hook block. Once the sliding pressure component is separated from the locking hook block, as the flip door continues to open, the gear teeth separate from the rack. To prevent the rotating flip door from causing the gear and rack to continuously mesh, which could lead to damage to the sliding pressure component due to exceeding its travel limit, this design uses an incomplete gear with only one or more teeth, and the number of teeth on the gear is less than the number of teeth on the rack. Once the sliding pressure component is separated from the locking hook block, as the flip door continues to open, the gear teeth separate from the rack. When the gear teeth separate from the rack, the flip door will not continue to drive the sliding pressure component to move as it continues to open. This design prevents the rotating flip door from causing the gear and rack to continuously mesh, thus avoiding damage to the sliding pressure component due to exceeding its travel limit, while the drawer interlock mechanism locks the drawer door during the flip door opening process.

[0013] Preferably, the drawer interlocking mechanism further includes a fourth elastic element, which is provided on the rack limiting part of the refrigerator body; When the teeth of the gear separate from the rack, one end of the rack approaches or abuts against the rack limiting part; After the gear teeth separate from the rack, the rack remains pressed against the rack limiting part under the action of the fourth elastic element. In this way, after the gear teeth separate from the rack, the fourth elastic element can maintain the position of the rack and prevent the rack from moving. This ensures that during the closing process of the flip door, the gear teeth can smoothly re-engage with the rack to drive the sliding pressure component back to its original position.

[0014] Preferably, it also includes a drawer ejection device, which is located on the refrigerator body and includes a fifth elastic element and an ejector. When the drawer door is closed, the ejector pin presses against the drawer door or drawer under the action of the fifth elastic element; After the latch disengages from the lock groove, the ejector, under the action of the fifth elastic element, pushes the drawer out. Thus, after the latch disengages from the lock groove, the drawer can be pushed out by the drawer ejector mechanism, allowing the user to easily pull the drawer door out and improving the user experience.

[0015] Preferably, the lock hook is provided with a lever plate for rotating the lock hook.

[0016] A vehicle-mounted refrigerator includes a double-door mechanical interlock device.

[0017] The beneficial effects of this invention are: Firstly, the drawer interlock mechanism addresses the safety hazards of pinching fingers or getting items stuck when pulling the drawer door outwards during retrieval from the flip-top door side, effectively improving the user experience. Secondly, the flip-top door interlock mechanism prevents external debris from accidentally entering the refrigerator's interior area outside the drawer after the drawer is pulled out and the flip-top door is opened, increasing cleaning difficulty and further enhancing the user experience. Additionally, it effectively solves the problem of having nothing to retrieve from the flip-top side when the drawer is pulled out and then reopened.

[0018] Secondly, it forcibly avoids the simultaneous opening of the flip-top door and drawer door, thereby significantly reducing the concentrated leakage of cold air inside the refrigerator, which has a positive effect on improving the insulation time and cooling efficiency of the car refrigerator.

[0019] Third, the vehicle refrigerator's double-door mechanical interlock device is easy to operate and requires no user to learn a complicated unlocking process.

[0020] Fourth, both the drawer interlock mechanism and the flip-top door interlock mechanism adopt a mechanical interlock structure. This interlock structure, which does not rely on electrical control, can avoid the problem of the refrigerator door being unable to open due to power outages. It is energy-saving and reliable, reduces the overall energy consumption of the vehicle, and conforms to the technological trend of energy conservation in vehicle equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a vehicle refrigerator with both the flip-top door and the drawer door in the closed state, according to the present invention.

[0022] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0023] Figure 3 This is a partial structural diagram of the flip-top door interlock mechanism in a vehicle refrigerator of the present invention, when both the flip-top door and the drawer door are in the closed state.

[0024] Figure 4 This is a three-dimensional partial structural diagram of the flip-top door interlocking mechanism of the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of a double-door mechanical interlock device for a vehicle refrigerator according to the present invention, showing the drawer door closed and the flip-top door open.

[0026] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle.

[0027] Figure 7This is a schematic diagram of the structure of a double-door mechanical interlock device for a vehicle refrigerator according to the present invention, showing the drawer door opening and the flip-top door closing.

[0028] In the picture: Drawer locking hook device 1, locking hook 1.1, locking hook protrusion 1.1.1, lever plate 1.1.2, locking groove 1.2, first elastic element 1.3; Drawer interlocking mechanism 2, lock hook block 2.1, unlocking protrusion 2.1.1, limiting protrusion 2.1.2, second elastic element 2.2, sliding pressure element 2.3, gear 2.4, rack 2.5, fourth elastic element 2.6; The flip-top door interlock mechanism 3, the latch 3.1, the tongue 3.1.1, the third elastic element 3.2, the slot 3.3, the push plate 3.4, and the latch shaft 3.5; Refrigerator body 4; Flip-top door 5, door handle 5.1; Drawer door 6; Drawer 7; Drawer pop-out device 8, ejector 8.1, fifth elastic element 8.2. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Specific Implementation Example 1, such as Figure 1 , Figure 2 , Figure 3 As shown, a double-door mechanical interlock device for a vehicle refrigerator includes a drawer lock hook device 1 and a drawer interlock mechanism 2.

[0030] The vehicle refrigerator includes a refrigerator body 4, a flip-top door 5, a drawer 7, and a drawer door 6. The drawer 7 is slidably disposed inside the refrigerator body 4, and the drawer door 6 is fixed to one side of the drawer 7. The flip-top door 5 is rotatably disposed on the top of the refrigerator body 4.

[0031] The drawer locking device 1 includes a locking groove 1.2, a locking hook 1.1, and a first elastic element 1.3. The locking groove 1.2 is located on the drawer door 6. The locking hook 1.1 is used to engage with the locking groove 1.2. The locking hook 1.1 is rotatably mounted on the refrigerator body 4. The first elastic element 1.3 drives the locking hook 1.1 to rotate, so that the locking hook 1.1 engages within the locking groove 1.2. Specifically, when the drawer door 6 is closed, the first elastic element 1.3 drives the locking hook 1.1 to rotate, so that the locking hook 1.1 engages within the locking groove 1.2, thereby locking the drawer door 6 through the engagement of the locking hook 1.1 and the locking groove 1.2.

[0032] The drawer interlocking mechanism 2 includes a locking hook block 2.1, a second elastic element 2.2, and a sliding pressing element 2.3. The locking hook block 2.1 is slidably mounted on the refrigerator body 4. The sliding pressing element 2.3 is slidably mounted on the refrigerator body 4 and is linked with the flip-top door 5.

[0033] like Figure 5 , Figure 6 As shown, when the drawer door 6 is closed and the flip door 5 is in the open state, the flip door 5 drives the sliding pressure piece 2.3 to slide and separate from the lock hook block 2.1. Under the action of the second elastic element 2.2, the lock hook block 2.1 moves towards the lock hook 1.1 and restricts the rotation of the lock hook 1.1 so that the lock hook 1.1 cannot disengage from the lock groove 1.2, thereby locking the drawer door 6 and preventing it from being opened.

[0034] like Figure 1 , Figure 2 As shown, when the flip door 5 is closed, the flip door 5 drives the sliding pressure piece 2.3 to slide and drives the lock hook block 2.1 to move, so as to release the restriction on the rotation of the lock hook 1.1.

[0035] The specific operation of the double-door mechanical interlock device of the vehicle refrigerator in this embodiment is as follows: like Figure 1 , Figure 2 As shown, when both the flip door 5 and the drawer door 6 are closed, the user can freely choose to open either door. Specifically, when the flip door 5 is closed, the drawer interlock mechanism 2 releases the restriction on the rotation of the lock hook 1.1. The user can apply external force to make the lock hook 1.1 rotate and disengage from the lock groove 1.2, thereby opening the drawer door 6. Therefore, the user can freely choose to open either the flip door 5 or the drawer door 6.

[0036] like Figure 5 , Figure 6 As shown, when the flip door 5 is opened, the drawer interlock mechanism 2 restricts the rotation of the locking hook 1.1, preventing the locking hook 1.1 from disengaging from the locking groove 1.2, thus locking the drawer door 6 and preventing it from being opened. The user cannot apply external force to make the locking hook 1.1 rotate out of the locking groove 1.2. This avoids the safety hazards of the drawer door 6 being pulled out and causing fingers to be pinched or items to get stuck when retrieving items from the side of the flip door 5 after it is opened, and also avoids the situation where there is nothing to retrieve from the side of the flip door 5 when the drawer 7 is pulled out by the drawer door 6 and then the flip door 5 is opened again. This effectively improves the user experience.

[0037] Meanwhile, the drawer interlock mechanism 2 in this embodiment adopts a mechanical interlock structure, which does not rely on electrical control. This interlock structure can avoid the problem of the door of the vehicle refrigerator being unable to open due to power outage. It has the characteristics of energy saving and reliability, reduces the energy consumption of the whole vehicle, and conforms to the technical trend of energy saving of vehicle equipment.

[0038] Specific embodiment two, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a double-door mechanical interlock device for a vehicle refrigerator includes a drawer lock hook device 1, a drawer interlock mechanism 2, and a flip-top door interlock mechanism 3.

[0039] The vehicle refrigerator includes a refrigerator body 4, a flip-top door 5, a drawer 7, and a drawer door 6. The drawer 7 is slidably disposed inside the refrigerator body 4, and the drawer door 6 is fixed to one side of the drawer 7. The flip-top door 5 is rotatably disposed on the top of the refrigerator body 4.

[0040] The drawer locking device 1 includes a locking groove 1.2, a locking hook 1.1, and a first elastic element 1.3. The locking groove 1.2 is located on the drawer door 6. The locking hook 1.1 engages with the locking groove 1.2. The locking hook 1.1 is rotatably mounted on the refrigerator body 4. The first elastic element 1.3 drives the locking hook 1.1 to rotate, causing it to engage within the locking groove 1.2. Specifically, when the drawer door 6 is closed, the first elastic element 1.3 drives the locking hook 1.1 to rotate, causing it to engage within the locking groove 1.2, thereby locking the drawer door 6 through the engagement of the locking hook 1.1 and the locking groove 1.2. In this embodiment, the first elastic element 1.3 is a torsion spring. Alternatively, the first elastic element 1.3 can be a spring sheet or a spring. The locking groove 1.2 is located at the top of the drawer door 6, with the groove opening facing upwards. The first elastic element 1.3 drives the locking hook 1.1 to rotate downwards, causing it to engage within the locking groove 1.2.

[0041] The drawer interlocking mechanism 2 includes a locking hook block 2.1, a second elastic element 2.2, and a sliding pressing element 2.3. The locking hook block 2.1 is slidably mounted on the refrigerator body 4. The sliding pressing element 2.3 is slidably mounted on the refrigerator body 4 and is linked with the flip-top door 5.

[0042] like Figure 5 , Figure 6 As shown, when the drawer door 6 is closed and the flip door 5 is in the open state, the flip door 5 drives the sliding pressure piece 2.3 to slide and separate from the lock hook block 2.1. Under the action of the second elastic element 2.2, the lock hook block 2.1 moves towards the lock hook 1.1 and restricts the rotation of the lock hook 1.1 so that the lock hook 1.1 cannot disengage from the lock groove 1.2, thereby locking the drawer door 6 and preventing it from being opened.

[0043] like Figure 1 , Figure 2 As shown, when the flip door 5 is closed, the flip door 5 drives the sliding pressure piece 2.3 to slide and drives the lock hook block 2.1 to move, so as to release the restriction on the rotation of the lock hook 1.1.

[0044] like Figure 1 , Figure 3 , Figure 4As shown, the flip-top door interlock mechanism 3 includes a latch 3.1, a slot 3.3, a third elastic element 3.2, and a push plate 3.4. The latch 3.1 is rotatably mounted on the refrigerator body 4 via a latch shaft 3.5. The slot 3.3 is used to engage with the latch 3.1. The slot 3.3 is located on the flip-top door 5. The third elastic element 3.2 is used to drive the latch shaft 3.5 to rotate. The push plate 3.4 is located on the latch shaft 3.5. In this embodiment, the third elastic element 3.2 is a torsion spring.

[0045] like Figure 1 , Figure 3 As shown, when drawer door 6 is closed, push plate 3.4 abuts against drawer 7 or drawer door 6, and drives latch shaft 3.5 and latch 3.1 to rotate, so that latch 3.1 disengages from slot 3.3. At this time, flip door 5 can be opened or closed freely.

[0046] When the flip door 5 is closed, the slot of the slot 3.3 faces the push plate 3.4, and the push plate 3.4 can be inserted into the slot 3.3.

[0047] like Figure 7 As shown, when the flip door 5 is closed and the drawer door 6 is opened, the third elastic element 3.2 drives the latch 3.1 to rotate, so that the latch 3.1 engages with the slot 3.3. At this time, the flip door 5 is locked and cannot be opened by applying external force.

[0048] The specific operation of the double-door mechanical interlock device of the vehicle refrigerator in this embodiment is as follows: like Figure 1 , Figure 2 , Figure 3 As shown, when both the flip door 5 and drawer door 6 are closed, the user can freely choose to open either door. Specifically, when the flip door 5 is closed, the drawer interlock mechanism 2 releases the restriction on the rotation of the locking hook 1.1. The user can apply external force to make the locking hook 1.1 rotate and disengage from the locking groove 1.2, after which the user can freely open the drawer door 6. When the drawer door 6 is closed, the push plate 3.4 abuts against the drawer 7 or drawer door 6, and drives the locking tongue shaft 3.5 and locking tongue 3.1 to rotate, so that the locking tongue 3.1 disengages from the slot 3.3; at this time, the user can freely open the flip door 5. Therefore, when both the flip door 5 and drawer door 6 are closed, the user can freely choose to open either door. When the flip door 5 is closed, it can be kept closed by means of spring, gravity, or magnetic attraction.

[0049] like Figure 5 , Figure 6As shown, when the flip door 5 is opened, the drawer interlock mechanism 2 restricts the rotation of the locking hook 1.1, preventing the locking hook 1.1 from disengaging from the locking groove 1.2, thus locking the drawer door 6 and preventing it from being opened. The user cannot apply external force to make the locking hook 1.1 rotate out of the locking groove 1.2. This avoids the safety hazards of the drawer door 6 being pulled out and causing fingers to be pinched or items to get stuck when retrieving items from the side of the flip door 5 after it is opened, and also avoids the situation where there is nothing to retrieve from the side of the flip door 5 when the drawer 7 is pulled out by the drawer door 6 and then the flip door 5 is opened again. This effectively improves the user experience.

[0050] like Figure 7 As shown, when the flip door 5 is closed and the drawer door 6 is opened, the third elastic element 3.2 of the flip door interlock mechanism 3 drives the locking tongue 3.1 to rotate, causing the locking tongue 3.1 to engage with the slot 3.3, thereby locking the flip door 5 and preventing it from being opened. The user cannot open the flip door 5 by applying external force. This prevents the problem of external debris accidentally entering the refrigerator's interior area outside the drawer 7 after the drawer 7 is pulled out and the flip door 5 is opened, increasing the difficulty of cleaning, and also prevents the phenomenon that there is nothing to take out on the side of the flip door 5 when the drawer door 6 is pulled out and the flip door 5 is opened. This effectively improves the user experience.

[0051] This embodiment provides a double-door mechanical interlock device for a vehicle refrigerator, which forcibly prevents the flip-top door 5 and drawer door 6 from opening simultaneously, thereby significantly reducing the concentrated leakage of cold air inside the refrigerator and playing a positive role in improving the insulation time and cooling efficiency of the vehicle refrigerator.

[0052] Meanwhile, in this embodiment, both the drawer interlock mechanism 2 and the flip-top door interlock mechanism 3 adopt mechanical interlock structures, which do not rely on electrical control. This avoids the problem of the vehicle refrigerator door being unable to open due to power outages. It has the characteristics of energy saving and reliability, reduces the energy consumption of the whole vehicle, and conforms to the technical trend of energy saving of vehicle equipment.

[0053] In this embodiment, the sliding pressure member 2.3 is linked with the flip door 5. Specifically, like Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, the drawer interlocking mechanism 2 also includes a gear 2.4. The gear 2.4 is fixed to the flip door 5 and coaxial with the rotating shaft of the flip door 5. The gear 2.4 can be fixed to the rotating shaft of the flip door 5 or fixed to the flip door 5. The sliding pressure member 2.3 is provided on the rack 2.5 that cooperates with the gear 2.4. The lock hook block 2.1 is provided with an unlocking protrusion 2.1.1. The lock hook block 2.1 is provided with a limiting protrusion 2.1.2. The lock hook 1.1 is provided with a lock hook protrusion 1.1.1 protruding to one side of the lock hook block 2.1. In this embodiment, the lock hook 1.1 is located above the lock hook block 2.1, and the lock hook block 2.1 slides in the up and down direction; both the unlocking protrusion 2.1.1 and the limiting protrusion 2.1.2 protrude upwards, and the second elastic element 2.2 is a spring, which drives the lock hook block 2.1 to move upwards.

[0054] One or both of the unlocking protrusion 2.1.1 and the sliding pressure member 2.3 are provided with guide slopes.

[0055] In one example, such as Figure 1 , Figure 2 As shown, the side of the unlocking protrusion 2.1.1 facing the sliding pressure member 2.3 is a guide slope, and the end of the sliding pressure member 2.3 facing the guide slope is an arc surface.

[0056] In another example, the sliding pressure member 2.3 has a guide ramp at one end facing the guide ramp.

[0057] like Figure 5 , Figure 6 As shown, when drawer door 6 is closed, during the opening of flip door 5, gear 2.4 drives sliding pressure member 2.3 to move via rack 2.5, causing sliding pressure member 2.3 to separate from lock hook block 2.1. This allows lock hook block 2.1 to move towards lock hook 1.1 under the action of the second elastic element 2.2, thus restricting the rotation of lock hook 1.1. Specifically, after sliding pressure member 2.3 separates from lock hook block 2.1, the limiting protrusion 2.1.2 of lock hook block 2.1 moves upward to its upper limit position under the action of the second elastic element 2.2, placing the limiting protrusion 2.1.2 on the rotation path of lock hook protrusion 1.1.1 and close to it, thus restricting the rotation of lock hook 1.1. At this point, it is impossible to apply external force to make lock hook 1.1 rotate and disengage from lock groove 1.2, thereby locking drawer door 6.

[0058] like Figure 1 , Figure 2As shown, when the flip door 5 is closed, gear 2.4 drives the sliding pressure member 2.3 to move via rack 2.5, causing the sliding pressure member 2.3 to abut against the unlocking protrusion 2.1.1 and move the lock hook block 2.1 away from the lock hook 1.1, thereby releasing the restriction on the rotation of the lock hook 1.1. Specifically, when the flip door 5 is closed, gear 2.4 drives the sliding pressure member 2.3 to move via rack 2.5, causing one end of the sliding pressure member 2.3 to abut against the unlocking protrusion 2.1.1, and driving the lock hook block 2.1 downward via the guide ramp (at this time, the second elastic element 2.2 is in a compressed state), causing the limiting protrusion 2.1.2 to disengage from the rotation path of the lock hook protrusion 1.1.1, thereby releasing the restriction on the rotation of the lock hook 1.1.

[0059] In the first embodiment of this invention, gear 2.4 is a complete gear 2.4, that is, gear 2.4 has a ring of teeth evenly distributed around its circumference. Throughout the entire process of opening the flip door 5, gear 2.4 and rack 2.5 remain in a meshed state.

[0060] In the second embodiment of this example, as follows: Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, to prevent the rotating flip door 5 from causing continuous meshing of gear 2.4 and rack 2.5, which could lead to damage to the sliding pressure component 2.3 due to exceeding its stroke, this embodiment designs gear 2.4 as an incomplete gear 2.4. Specifically, Gear 2.4 has only one or more teeth, and the number of teeth in gear 2.4 is less than the number of teeth in rack 2.5. In this embodiment, gear 2.4 has multiple adjacently distributed teeth. During the opening of the flip door 5, gear 2.4 drives the sliding pressing member 2.3 to move via rack 2.5, causing the sliding pressing member 2.3 to separate from the locking hook block 2.1. After the sliding pressing member 2.3 separates from the locking hook block 2.1, as the flip door 5 continues to open, the teeth of gear 2.4 separate from rack 2.5. Thus, after the flip door 5 is opened to a certain angle, not only can the sliding pressing member 2.3 be separated from the locking hook block 2.1, but the teeth of the gear 2.4 can also be separated from the rack 2.5, allowing the flip door 5 to continue opening without continuing to drive the sliding pressing member 2.3 to move. This prevents the rotating flip door 5 from causing the gear 2.4 and rack 2.5 to continuously mesh, thus avoiding damage to the sliding pressing member 2.3 due to exceeding its stroke, while the drawer interlock mechanism 2 locks the drawer door 6 during the opening process.

[0061] Furthermore, such as Figure 2 , Figure 6As shown, in the second embodiment of this example, the drawer interlocking mechanism 2 further includes a fourth elastic element 2.6. A rack and pinion limiting part is provided on the refrigerator body 4. When the teeth of gear 2.4 separate from the rack 2.5, one end of the rack 2.5 approaches or abuts against the rack limiting part. After the teeth of gear 2.4 separate from the rack 2.5, the rack 2.5 remains abutting against the rack limiting part under the action of the fourth elastic element 2.6. In this embodiment, the fourth elastic element 2.6 is a spring. Thus, after the teeth of gear 2.4 separate from the rack 2.5, the position of the rack 2.5 can be maintained by the fourth elastic element 2.6, preventing the rack 2.5 from moving, thereby ensuring that during the closing process of the flip door 5, the teeth of gear 2.4 can smoothly re-engage with the rack 2.5 to drive the sliding pressure member 2.3 back to its original position.

[0062] Furthermore, such as Figure 1 , Figure 2 As shown, the lock hook 1.1 is provided with a lever plate 1.1.2 for rotating the lock hook 1.1. When the flip door 5 is closed, the user can rotate the lock hook 1.1 by lever plate 1.1.2, causing the lock hook 1.1 to rotate and disengage from the lock groove 1.2, thereby opening the drawer door 6. In this embodiment, the lever plate 1.1.2 extends upwards.

[0063] The outer surface of the flip door 5 is provided with an opening handle 5.1. The user can rotate the flip door 5 by using the opening handle 5.1, thereby opening or closing the flip door 5.

[0064] Furthermore, such as Figure 1 , Figure 7 As shown, a double-door mechanical interlock device for a vehicle refrigerator also includes a drawer ejection device 8. The drawer ejection device 8 is located on the refrigerator body 4. The drawer ejection device 8 includes a fifth elastic element 8.2 and a push-out member 8.1. When the drawer door 6 is closed, the push-out member 8.1 abuts against the drawer door 6 or drawer 7 under the action of the fifth elastic element 8.2. When the locking hook 1.1 disengages from the locking groove 1.2, the push-out member 8.1 pushes the drawer 7 out under the action of the fifth elastic element 8.2. Thus, after the locking hook 1.1 disengages from the locking groove 1.2, the drawer 7 can be pushed out via the drawer ejection device 8, facilitating the user to pull out the drawer door 6 and improving the user experience.

[0065] In one implementation, such as Figure 1 , Figure 7 As shown, the ejector 8.1 is an ejector rod. The ejector rod is slidably mounted on the refrigerator body 4, and its sliding direction is parallel to the sliding direction of the drawer 7. The fifth elastic element 8.2 is a spring. One end of the ejector rod abuts against the drawer door 6 under the action of the fifth elastic element 8.2. When the locking hook 1.1 disengages from the locking groove 1.2, the ejector rod, under the action of the fifth elastic element 8.2, pushes the drawer 7 out.

[0066] In another embodiment, the ejector is a swinging ejector. The swinging ejector is rotatably mounted on the refrigerator body 4, and the fifth elastic element is a torsion spring. One end of the swinging ejector abuts against the drawer door under the action of the fifth elastic element. When the locking hook disengages from the locking groove, the swinging ejector, under the action of the fifth elastic element, pushes the drawer out.

[0067] Furthermore, such as Figure 3 , Figure 4 As shown, the latch 3.1 extends radially along the latch shaft 3.5, and the side of the latch 3.1 away from the latch shaft 3.5 is provided with a tongue portion 3.1.1 that engages with the slot 3.3. When the flip door 5 is closed and the drawer door 6 is opened, the third elastic element 3.2 drives the latch 3.1 to rotate, so that the tongue portion 3.1.1 engages with the slot 3.3. Since the latch 3.1 extends radially along the latch shaft 3.5, and the tongue portion 3.1.1 that engages with the slot 3.3 is provided on the side of the latch 3.1 away from the latch shaft 3.5, the tongue portion 3.1.1 can generate a large linear travel when the latch 3.1 rotates only a small angle. Thus, after the drawer door 6 is slightly opened, the third elastic element 3.2 can drive the latch 3.1 to rotate, so that the tongue portion 3.1.1 generates a large linear travel, thereby allowing the tongue portion 3.1.1 to quickly engage with the slot 3.3, achieving timely locking of the flip door 5.

[0068] Furthermore, such as Figure 3 , Figure 4 , Figure 7 As shown, the push plate 3.4 extends radially along the latch shaft 3.5. A push block that mates with the push plate 3.4 is provided on the outer wall of the drawer 7. When the drawer door 6 is closed, the push plate 3.4 rests against the push block, and the latch 3.1 disengages from the slot 3.3. In this embodiment, a shock-resistant cushioning pad is affixed to the side of the push block facing the push plate 3.4.

[0069] Specific embodiment three: A vehicle-mounted refrigerator, including a double-door mechanical interlock device. The specific structure of the double-door mechanical interlock device for the vehicle-mounted refrigerator is described in specific embodiment one or specific embodiment two.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A double-door mechanical interlock device for a vehicle-mounted refrigerator, the vehicle-mounted refrigerator comprising a refrigerator body, a flip-top door, and drawer doors, characterized in that, include: Drawer locking mechanism, including: Lock slot, located on drawer door; The locking hook is rotatably mounted on the refrigerator body; The first elastic element drives the lock hook to rotate so that the lock hook engages in the lock groove; Drawer interlocking mechanism, including: The locking hook block is slidably mounted on the refrigerator body; Second elastic element; The sliding pressure component is slidably mounted on the refrigerator body and linked with the flip-top door; When the drawer door is closed and the flip door is in the open state, the locking hook block moves towards the locking hook under the action of the second elastic element and restricts the rotation of the locking hook so that the locking hook cannot disengage from the locking groove. When the flip door is closed, the sliding pressure component drives the lock hook block to move, thereby releasing the restriction on the rotation of the lock hook.

2. The double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 1, characterized in that, It also includes a flip-top door interlock mechanism, including: The latch is rotatably mounted on the refrigerator body via a latch shaft. A slot that engages with the latch is located on the flip door; Third elastic element; Push plate, located on the latch shaft; When the flip door is closed and the drawer door is opened, the third elastic element drives the bolt to rotate so that the bolt engages with the slot. When the drawer door is closed, the push plate rests against the drawer or drawer door, causing the latch shaft and latch to rotate, so that the latch disengages from the slot.

3. The double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 2, characterized in that, The latch extends radially along the latch axis, and the side of the latch away from the latch axis is provided with a tongue that mates with the slot; when the flip door is closed and the drawer door is opened, the third elastic element drives the latch to rotate so that the tongue engages in the slot.

4. A double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 2 or 3, characterized in that, The push plate extends radially along the locking tongue shaft, and the outer wall of the drawer is provided with a push block that cooperates with the push plate; when the drawer door is closed, the push plate abuts against the push block, and the locking tongue disengages from the slot.

5. A double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 1, 2, or 3, characterized in that, The drawer interlock mechanism also includes: The gear is fixed to the flip door and is coaxial with the flip door's pivot. The sliding pressure member is provided on the rack that meshes with the gear, and the locking hook block is provided with an unlocking protrusion; When the drawer door is closed, during the opening of the flip door, the gear drives the sliding pressure member to move through the rack, causing the sliding pressure member to separate from the lock hook block, thereby causing the lock hook block to move towards the lock hook under the action of the second elastic element and restricting the rotation of the lock hook; When the flip door is closed, the gear drives the sliding pressure piece to move through the rack, so that the sliding pressure piece abuts against the unlocking protrusion and drives the lock hook block away from the lock hook, thereby releasing the restriction on the rotation of the lock hook.

6. The double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 5, characterized in that, The gear has only one or more teeth, and the number of teeth of the gear is less than the number of teeth of the rack; During the opening of the flip door, the gear drives the sliding pressure component to move through the rack, causing the sliding pressure component to separate from the locking hook block; after the sliding pressure component separates from the locking hook block, the gear teeth separate from the rack as the flip door continues to open.

7. The double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 6, characterized in that, The drawer interlocking mechanism also includes a fourth elastic element, which is provided on the rack limiting part of the refrigerator body; When the teeth of the gear separate from the rack, one end of the rack approaches or abuts against the rack limiting part; After the gear teeth separate from the rack, the rack remains pressed against the rack limiting part under the action of the fourth elastic element.

8. A double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 1, 2, or 3, characterized in that, It also includes a drawer ejection mechanism, which is located on the refrigerator body and includes a fifth elastic element and an ejector. When the drawer door is closed, the ejector pin presses against the drawer door or drawer under the action of the fifth elastic element; After the locking hook disengages from the locking groove, the ejector, under the action of the fifth elastic element, pushes the drawer out.

9. A double-door mechanical interlock device for a vehicle-mounted refrigerator according to claim 1, 2, or 3, characterized in that, The lock hook is equipped with a lever plate for rotating the lock hook.

10. A vehicle-mounted refrigerator, characterized in that, Includes a double-door mechanical interlock device for a vehicle refrigerator as described in any one of claims 1-9.

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