A drawer cabinet

Abstract

The application discloses a drawer cabinet, which comprises a cabinet body (1), a drawer (2) and a locking mechanism (3), and is characterized in that: the cabinet body (1) is provided with a locking piece (14) with a locking hole (141); the drawer (2) is provided with a limiting piece (211) with a limiting hole (2111); the locking mechanism (3) comprises a locking column (31) which can be inserted into the locking hole (141) and the limiting hole (2111); the front side of the locking piece (14) is provided with a gap (142) for allowing the middle part of the locking column (31) to pass through the gap (142) in the front-rear direction and enter or exit the locking hole (141); and a driving assembly is used to drive the locking column (31) to ascend and descend so as to enter or exit the locking hole (141) and the limiting hole (2111), so that the drawer cabinet has at least three states. Compared with the prior art, the drawer cabinet of the application realizes the drawer locking and unlocking functions and the functions of opening two drawers separately or simultaneously through a set of locking mechanisms.

Description

Technical Field

[0001] This invention relates to the field of kitchen equipment technology, specifically to a drawer cabinet. Background Technology

[0002] Currently, disinfection cabinets on the market generally include a cabinet body and drawers that can be pulled out and in. Because ultraviolet rays emit radiation and ozone has a noticeable odor, electromagnetic locks are generally used to lock the drawers. During the disinfection or drying process, the electromagnetic lock locks the door structure of the disinfection cabinet to prevent the drawers from being opened by humans, causing ultraviolet radiation, ozone leakage, and high-temperature gas leakage, which could affect the safety of the operator.

[0003] For example, the utility model patent "Safety Self-Locking Structure of Disinfection Cabinet Basket and Disinfection Cabinet" with patent application number CN201320354052.X (publication number CN203321118U) discloses a safety self-locking structure for a disinfection cabinet basket, including a cabinet door, an inner liner, an electromagnetic lock, a hook plate, and a basket tray; the hook plate includes a slider plate and a hook strip, one end of which is provided with a hook, and the other end is connected and fixed to the slider plate; the basket tray is connected to the cabinet door, the electromagnetic lock is set on the inner liner, and a first through hole is provided on the side wall of the inner liner, through which the hook strip passes; the electromagnetic lock rod of the electromagnetic lock is connected to the slider plate, and the electromagnetic lock rod and the hook plate move up and down synchronously; when the electromagnetic lock is in the locked state, the hook hooks the basket tray; when the electromagnetic lock is in the unlocked state, the hook disengages from the basket tray.

[0004] However, existing disinfection cabinets, including the solutions mentioned above, generally use electronic control to lock and unlock the drawers. In case of unexpected power outages or electromagnetic lock malfunctions, the drawers may not be able to be opened or locked. Furthermore, unlocking and opening the door require two separate operations, resulting in a poor user experience.

[0005] In addition, existing disinfection cabinets are generally divided into upper and lower layers, and are mostly installed in the lower cabinets of the kitchen. The upper door is relatively easy to operate, but the lower door requires bending over or squatting to open, which is inconvenient. Sometimes, when it is necessary to open the upper and lower doors at the same time, the doors can only be opened separately in two separate operations. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide a drawer cabinet that achieves drawer locking and unlocking functions and the function of opening two drawers individually or simultaneously by means of a locking mechanism, in light of the current state of the prior art.

[0007] The second technical problem to be solved by the present invention is to provide a drawer cabinet in which unlocking and opening can be performed simultaneously.

[0008] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a drawer cabinet, including a cabinet body;

[0009] Two drawers are arranged vertically, each capable of being pulled in and out of the cabinet's interior in a front-to-back direction. The drawer located at the top is designated as the upper drawer, and the drawer located at the bottom is designated as the lower drawer.

[0010] A locking mechanism is used to lock and unlock the upper drawer;

[0011] The cabinet is characterized by having a lock plate with a lock hole, and the drawer is equipped with a limiting plate with a limiting hole. The limiting holes at the upper and lower drawers are located directly above and below the lock hole, respectively, when the drawers are closed.

[0012] The locking mechanism includes:

[0013] A locking pin is arranged vertically and can be inserted into the lock hole and the limiting hole. A groove is provided on the circumferential wall of the middle part of the locking pin. A notch is provided on the front side of the locking plate so that the middle part of the locking pin can pass through in the front-back direction and enter and exit the lock hole.

[0014] A drive assembly, connected to the locking pin drive mechanism, drives the locking pin to move up and down, entering and exiting the locking hole and the limiting hole, so that the drawer cabinet has at least three states:

[0015] In the first state, the lower part of the locking pin is inserted into the lock hole and the limiting hole of the upper drawer, so that the upper drawer is in a locked state;

[0016] In the second state, the lower part of the locking pin disengages from the limiting hole and is positioned above the limiting hole, so that the upper drawer is in the unlocked state and the upper and lower drawers are not linked.

[0017] In the third state, the upper part of the locking pin is inserted into the limiting hole of the upper drawer, the middle part of the locking pin is inserted into the lock hole, and the lower part of the locking pin is inserted into the limiting hole of the lower drawer, so that the upper drawer is in the unlocked state and the upper and lower drawers are linked together.

[0018] To facilitate the installation of the lock plate and drive assembly, the front of the drawer has a door, and the door has a limiting piece formed on the side wall opposite the lock plate. The drive assembly is installed on the door.

[0019] To drive the locking pin, the door body has an internal hollow structure, and the driving assembly includes...

[0020] The base is installed inside the door body;

[0021] A pulley is rotatably connected to the base.

[0022] The pull rope has one end connected to the lock pin, and the second end extends upward, passes around the pulley, and then extends forward to be exposed on the front of the door.

[0023] The drive plate, connected to the second end of the pull rope, can drive the lock column to rise and fall under the action of external force.

[0024] To further address the second technical problem mentioned above, a handle and a guide are installed on the front of the door. The handle includes a handle portion and mounting portions located at both ends of the handle portion. The mounting portions are installed on the front side wall of the door. The drive plate is located between the handle portion and the door and is slidably mounted on the guide. In the first state, there is a gap between the drive plate and both the handle portion and the door.

[0025] To facilitate the processing of the guide component, the guide component is a guide rod that connects the handle and the door body and extends in the front-to-back direction;

[0026] In the first state, the drive plate is located in the middle of the guide rod;

[0027] In the second state, the drive plate is located at the front of the guide rod;

[0028] In the third state, the drive plate is located at the rear of the guide rod.

[0029] To ensure the drawer remains locked without external force, at least a portion of the drive plate is made of a material that can be attracted by magnets. The drive assembly also includes...

[0030] A magnetic component is mounted on the handle portion to ensure that the drive plate always has a tendency to move forward; and

[0031] An elastic element acts between the handle portion and the drive plate to ensure that the drive plate always has a tendency to move backward.

[0032] When no external force is applied to the driving plate, the driving plate remains in the first state under the combined action of the magnetic and elastic components.

[0033] To facilitate the installation of the magnetic component, the handle portion has an internal hollow structure, and the magnetic component is installed on the rear side wall inside the handle portion.

[0034] To facilitate the installation of the elastic element, the elastic element is a compression spring, which is sleeved on the guide rod, and the two ends of the compression spring abut against the handle and the drive plate respectively.

[0035] To facilitate guiding the lock pin and prevent it from swaying after disengaging from the lock hole and affecting the locking mechanism, a guide sleeve is vertically arranged inside the upper drawer door. This guide sleeve is located directly above the limiting hole, and the lock pin can be inserted into the guide sleeve by moving up and down.

[0036] To facilitate the installation of the lock plate, a face frame is installed at the front opening of the cabinet, and the lock plate is installed on the face frame.

[0037] Compared with the prior art, the advantages of the present invention are as follows: Locking plates with lock holes and limiting plates with limiting holes are respectively provided on the cabinet and drawer for the insertion of the locking pin. A notch is provided on the front side of the locking plate, allowing only the middle part of the locking pin to pass through in the front-back direction and enter and exit the lock hole. A driving assembly drives the locking pin to rise and fall, allowing it to enter and exit the lock hole and the limiting hole. In the first state, the lower part of the locking pin is inserted into the lock hole and the limiting hole of the upper drawer, thus locking the upper drawer and preventing it from opening. In the second state, the lower part of the locking pin disengages. The upper drawer is in the unlocked state and the upper and lower drawers are not linked. The upper drawer can be opened independently. In the third state, the upper part of the locking pin is inserted into the limiting hole of the upper drawer, the middle part of the locking pin is inserted into the lock hole, and the lower part of the locking pin is inserted into the limiting hole of the lower drawer. This unlocks the upper drawer and links the upper and lower drawers together. The upper and lower drawers can be opened synchronously. It can be seen that the drawer locking and unlocking functions and the function of opening two drawers individually or simultaneously can be realized by a set of locking mechanisms. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of an embodiment of the drawer cabinet of the present invention in its first state;

[0039] Figure 2 for Figure 1 The three-dimensional structural diagram behind the drawer at the top is omitted.

[0040] Figure 3 for Figure 2 A three-dimensional structural diagram of the locking mechanism;

[0041] Figure 4 for Figure 1 A cross-sectional view;

[0042] Figure 5 for Figure 1 A longitudinal sectional view;

[0043] Figure 6 for Figure 5 A longitudinal sectional view after transitioning to the second state;

[0044] Figure 7 for Figure 5A longitudinal sectional view after transitioning to the third state. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0046] like Figures 1 to 7 The diagram shows a preferred embodiment of the drawer cabinet of the present invention. The drawer cabinet can be a kitchen cabinet, a disinfection cabinet, etc., and the following description uses a disinfection cabinet as an example. The drawer cabinet includes a cabinet body 1, drawers 2, and a locking mechanism 3.

[0047] The cabinet 1 has a disinfection chamber 11 inside and an open front side. A disinfection lamp 12 is installed on the top wall inside the cabinet 1. A face frame 13 is installed at the open front side of the cabinet 1. A forward-extending locking plate 14 is installed on the front side of the face frame 13. The locking plate 14 has a lock hole 141 and a notch 142 on the front side of the locking plate 14 that communicates with the lock hole 141.

[0048] There are two drawers 2, one above the other, located inside the disinfection chamber 11. Each drawer 2 can be pulled in and out of the disinfection chamber 11 from the opening on the front side of the cabinet 1. The drawer located at the top is called the upper drawer, and the drawer located at the bottom is called the lower drawer. Each drawer 2 includes a door 21, a shelf 22 installed on the back of the door 21, and a handle 23 installed on the front of the door 21. In this embodiment, the door body 21 has an internal hollow structure. A limiting piece 211 is formed on the side wall of the door body 21 facing the lock plate 14. A limiting hole 2111 is provided on the limiting piece 2111. The limiting holes 2111 at the upper drawer and the lower drawer are located directly above and directly below the lock hole 141, respectively, when the drawer 2 is closed. A guide sleeve 212 is vertically arranged inside the door body 21 of the upper drawer. The guide sleeve 212 is located directly above the limiting hole 2111. The handle 23 includes a handle part 231 and mounting parts 232 located at both ends of the handle part 231. The mounting parts 232 are mounted on the front side wall of the door body 21. The handle part 231 has an internal hollow structure. A guide rod 24 extending in the front-back direction is connected between the handle part 231 and the door body 21. There are two guide rods 24, which are arranged at intervals in the left-right direction.

[0049] The locking mechanism 3 is installed on the upper drawer and is used to lock and unlock the upper drawer. In this embodiment, the locking mechanism 3 includes a locking pin 31, a base 32, a pulley 33, a pull rope 34, a drive plate 35, a magnetic component 36, and an elastic component 37.

[0050] Specifically, the locking pin 31 is arranged vertically and can be inserted into the guide sleeve 212, and can be inserted into the lock hole 141 and the limiting hole 2111. A groove 311 is provided on the circumferential wall of the middle part of the locking pin 31. In this embodiment, the diameter of the upper and lower parts of the locking pin 31 is greater than the width of the notch 142, and the diameter of the middle part of the locking pin 31 is smaller than the width of the notch 142. Therefore, only the middle part of the locking pin 31 can pass through the notch 142 and enter and exit the lock hole 141 in the front-back direction.

[0051] The base 32 is installed inside the door body 21 and is basically flush with the handle 23 mentioned above;

[0052] The pulley 33 is rotatably connected to the base 32;

[0053] The first end of the pull rope 34 is connected to the lock pin 31, and the second end extends upward, passes around the pulley 33, and then extends forward to be exposed on the front of the door 21.

[0054] The drive plate 35 is made of a material that can be attracted by a magnet. It is connected to the second end of the pull rope 34 and installed on the guide rod 24. The drive plate 35 can slide back and forth along the guide rod 24 under the action of external force and drive the lock pin 31 to rise and fall through the pull rope 34, so that the lock pin 31 can enter and exit the lock hole 141 and the limiting hole 2111.

[0055] The magnetic component 36 is installed on the rear side wall inside the handle portion 231 so that the drive piece 35 always has a tendency to move forward;

[0056] The elastic element 37 is a compression spring, which is sleeved on the guide rod 24, and the two ends of the compression spring abut against the handle part 231 and the drive plate 35 respectively, so that the drive plate 35 always has a tendency to move backward.

[0057] The above-mentioned drawer chest has at least three states:

[0058] In the first state, such as Figure 5 As shown, when no external force is applied to the drive plate 35, the drive plate 35 is held in the middle of the guide rod 24 under the combined action of the magnetic element 36 and the elastic element 37. There are gaps between the drive plate 35 and the handle part 231 and the door body 21. The lower part of the locking pin 31 is inserted into the lock hole 141 and the limiting hole 2111 of the upper drawer, so that the upper drawer is in a locked state.

[0059] In the second state, such as Figure 6 As shown, the drive piece 35 moves forward to the front of the guide rod 24 under the action of external force, overcoming the elastic force of the elastic member 37; the lower part of the locking pin 31 disengages from the limiting hole 2111 and is located above the limiting hole 2111, so that the upper drawer is in the unlocked state and the upper drawer and the lower drawer are not linked.

[0060] In the third state, such as Figure 7 As shown, the drive piece 35 moves backward to the rear of the guide rod 24 under the action of external force, overcoming the magnetic force of the magnetic component 36; the upper part of the locking pin 31 is inserted into the limiting hole 2111 of the upper drawer, the middle part of the locking pin 31 is inserted into the locking hole 141, and the lower part of the locking pin 31 is inserted into the limiting hole 2111 of the lower drawer, so that the upper drawer is in the unlocked state and the upper and lower drawers are linked together.

[0061] The working principle of this embodiment is as follows:

[0062] (1) As Figure 5 As shown, in the first state, without any external force acting on the drive piece 35, the drive piece 35 is held in the middle of the guide rod 24 under the combined action of the magnetic element 36 and the elastic element 37. There are gaps between the drive piece 35 and the handle part 231 and the door body 21. The lower part of the locking pin 31 is inserted into the lock hole 141 and the limiting hole 2111 of the upper drawer, so that the upper drawer is locked and prevents the upper drawer from being opened.

[0063] (2) When it is necessary to open the upper drawer separately, simply grasp the upper drawer handle 23 and insert your fingers into the gap between the drive plate 35 and the door 21, and pull the drive plate 35 forward to the front of the guide rod 24 (e.g., Figure 6 As shown), during this process, the drive plate 35 will drive the locking pin 31 to rise through the pull rope 34, so that the lower part of the locking pin 31 disengages from the limiting hole 2111 and is located above the limiting hole 2111, thereby releasing the lock on the upper drawer. Since the locking pin 31 is not inserted into the limiting hole 2111 of the lower drawer, the upper drawer and the lower drawer are not linked. At this time, the drawer 2 is in the second state. Pulling the handle 23 outward can drive the upper drawer to move forward to realize the door opening operation.

[0064] (3) When it is necessary to open the upper drawer and the lower drawer at the same time, simply hold the handle 23 of the upper drawer and insert your fingers into the gap between the drive plate 35 and the handle part 231, and push the drive plate 35 backward to the rear of the guide rod 24 (e.g., Figure 7 As shown), during this process, the drive plate 35 will drive the locking pin 31 to descend via the pull rope 34, so that the upper part of the locking pin 31 is inserted into the limiting hole 2111 of the upper drawer, the middle part of the locking pin 31 is inserted into the lock hole 141, and the lower part of the locking pin 31 is inserted into the limiting hole 2111 of the lower drawer. On the one hand, since the middle part of the locking pin 31 can disengage from the lock hole 141 through the notch 142 in the front-back direction, the upper drawer is unlocked. On the other hand, since the upper and lower parts of the locking pin 31 are respectively inserted into the limiting holes 2111 of the upper and lower drawers, the upper and lower drawers are linked together. At this time, the drawer 2 is in the third state. Pulling the handle 23 outward can drive the upper and lower drawers to move forward synchronously to realize the door opening operation.

[0065] In addition, the unlocking and opening of the door can be done simultaneously, providing a superior user experience.

Claims

1. A drawer cabinet comprising a cabinet body (1); two drawers (2) arranged in sequence in the vertical direction, each drawer (2) being able to be pulled in and out of the inner cavity of the cabinet body (1) in the front-back direction, the upper drawer being referred to as the upper drawer and the lower drawer being referred to as the lower drawer; and a locking mechanism (3) for locking and unlocking the upper drawer; characterized in that the cabinet body (1) is provided with a locking piece (14), the locking piece (14) is provided with a locking hole (141), the drawer (2) is provided with a limiting piece (211), the limiting piece (211) is provided with a limiting hole (2111), the limiting holes (2111) of the upper drawer and the lower drawer are respectively located directly above and directly below the locking hole (141) in the closed state of the drawer (2); the locking mechanism (3) comprises a locking column (31) arranged vertically and capable of being inserted into the locking hole (141) and the limiting hole (2111), a groove (311) is formed in the circumferential wall of the middle part of the locking column (31), a notch (142) is formed in the front side of the locking piece (14), and only the middle part of the locking column (31) is allowed to pass through the notch (142) in the front-back direction and in and out of the locking hole (141); a driving assembly in driving connection with the locking column (31) for driving the locking column (31) to ascend and descend to enter and exit the locking hole (141) and the limiting hole (2111), so that the drawer cabinet has at least three states: in the first state, the lower part of the locking column (31) is inserted into the locking hole (141) and the limiting hole (2111) of the upper drawer, so that the upper drawer is in a locked state; in the second state, the lower part of the locking column (31) is separated from the limiting hole (2111) and located above the limiting hole (2111), so that the upper drawer is in an unlocked state and the upper drawer and the lower drawer are not linked; in the third state, the upper part of the locking column (31) is inserted into the limiting hole (2111) of the upper drawer, the middle part of the locking column (31) is inserted into the locking hole (141), and the lower part of the locking column (31) is inserted into the limiting hole (2111) of the lower drawer, so that the upper drawer is in an unlocked state and the upper drawer and the lower drawer are linked.

2. The cabinet according to claim 1, characterized in that: The front side of the drawer (2) has a door body (21), and the limiting piece (211) is formed on the side wall of the door body (21) opposite to the locking piece (14), and the driving assembly is installed on the door body (21).

3. The cabinet according to claim 2, characterized in that: The door body (21) has an internal hollow structure, and the driving assembly comprises a base (32) installed in the door body (21); a pulley (33) rotatably connected to the base (32); a pull rope (34) having a first end connected to the locking column (31) and a second end extending upward, passing around the pulley (33) and then extending forward to be exposed on the front surface of the door body (21); a driving piece (35) connected to the second end of the pull rope (34) and capable of driving the locking column (31) to ascend and descend under the action of an external force through the pull rope (34).

4. The cabinet according to claim 3, characterized in that: The front side of the door body (21) is provided with a handle (23) and a guide element, the handle (23) comprises a handle part (231) and mounting parts (232) located at both ends of the handle part (231), the mounting parts (232) are mounted on the front side wall of the door body (21), the driving piece (35) is located between the handle part (231) and the door body (21) and is slidably mounted on the guide element, in the first state, the driving piece (35) has a gap with the handle part (231) and the door body (21).

5. The cabinet according to claim 4, characterized in that: The guide element is a guide rod (24) connected between the handle part (231) and the door body (21) and extending in the front-rear direction. In the first state, the driving piece (35) is located at the middle part of the guide rod (24). In the second state, the driving piece (35) is located at the front part of the guide rod (24). In the third state, the driving piece (35) is located at the rear part of the guide rod (24).

6. The cabinet according to claim 5, characterized in that: The driving piece (35) is at least partially made of a material that can be attracted by a magnet, the driving assembly further comprises a magnetic element (36) mounted on the handle part (231) to make the driving piece (35) always have a tendency to move forward; and a resilient element (37) acting between the handle part (231) and the driving piece (35) to make the driving piece (35) always have a tendency to move backward; In the state that no external force acts on the driving piece (35), the driving piece (35) is kept in the first state under the joint action of the magnetic element (36) and the resilient element (37).

7. The cabinet according to claim 6, characterized in that: The handle part (231) has an internal hollow structure, and the magnetic element (36) is mounted on the rear side wall inside the handle part (231).

8. The cabinet according to claim 6, characterized in that: The resilient element (37) is a compression spring, the compression spring is sleeved on the guide rod (24), and the two ends of the compression spring abut against the handle part (231) and the driving piece (35) respectively.

9. The drawer cabinet according to any one of claims 2 to 8, characterized in that: The door body (21) of the upper drawer is vertically provided with a guide sleeve (212) located directly above the limiting hole (2111), and the lock post (31) can be movably inserted into the guide sleeve (212).

10. The drawer cabinet according to any one of claims 2 to 8, characterized in that: The front side of the cabinet body (1) is provided with a face frame (13), and the lock piece (14) is mounted on the face frame (13).

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