Locking device of refrigeration equipment
By designing a locking device on the refrigeration equipment and using electronic devices to control the locking unit and drive components, the problem of improper management of items in low-temperature storage equipment is solved, and effective control and safe storage and retrieval of drugs and medicines are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THINCHE
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-26
AI Technical Summary
Existing low-temperature storage equipment lacks effective safety protection and management measures, which makes it easy for drugs and medicines to be damaged or lost during storage and retrieval, and cannot be effectively controlled, affecting their use and preservation effects.
Design a locking device for refrigeration equipment. By installing locks and electronic control units on the chassis and door, the internal storage space of the refrigeration unit can be locked and its quantity managed. The electronic device controls the locking unit and drive components to ensure that only authorized personnel can access or store items.
It enables effective management and control of items inside refrigeration equipment, preventing unauthorized access, avoiding loss or damage, and ensuring the accuracy and reliability of item quantities.
Smart Images

Figure CN224282247U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a locking device for refrigeration equipment, and more particularly to a locking device used to control the insertion or removal of items in refrigeration equipment. The device is equipped with a lock on the switch side of the refrigeration unit's chassis and door, and is operated by an electronic device control unit to effectively control the number of items inserted or removed from the storage space of the refrigeration unit's chassis. Background Technology
[0002] With the continuous changes in the world climate and the rapid transformation of living environments, people's ability to adapt to life is also constantly adjusting. As a result, various diseases have emerged and permeated people's lives, causing them to be constantly harmed. In order to avoid people from being harmed by various diseases, the academic community and medical institutions are constantly researching and developing new medical drugs, products and medical methods to combat various diseases and reduce or minimize the harm caused to people. However, from the research and development stage to the testing, experimentation and subsequent application and implementation stages, the collection and preservation of research and development drugs and medicines are extremely important factors. Some research and development drugs or medicines must be stored at low temperatures or frozen to prevent them from deteriorating or spoiling.
[0003] Currently, the method of preserving medicines or drugs is to directly store them in refrigerators, freezers, or other storage rooms. When different users or other personnel enter or leave the storage room, they may not understand the nature or function of the items stored inside the refrigerator, freezer, or other storage rooms. They may open the refrigerator or freezer and directly take out the medicines or drugs inside, and may store them in other locations or discard them. This can easily cause damage or loss of the stored medicines or drugs, making it impossible for the original user to find them when they want to use them, thus affecting the implementation and procedures of related operations.
[0004] Furthermore, some medications or drugs, such as injectable solutions, IV drips, liquids, tablets, or powders, must be stored under refrigeration or freezing. After manufacturing, these are transported to hospital pharmacies, clinic pharmacies, or general pharmacies, where refrigeration equipment must be installed for storage. This allows pharmacists to dispense the medications to patients after prescriptions. However, many hospitals, clinic pharmacies, and general pharmacies lack adequate safety management measures for their refrigeration equipment (e.g., refrigerators, freezers, etc.). This allows unauthorized personnel to place unrelated items into the refrigeration equipment and freely access medications, resulting in inadequate control over drug use. This leads to shortages or deficiencies that are not replenished promptly, resulting in situations where medications are unavailable when needed. Such issues, particularly concerning important research or development drugs and test samples, arise from the inability to effectively control the storage and application of medications under refrigeration, and require improvement.
[0005] Furthermore, some personnel who collect samples such as blood, bacteria, cells, seedlings, or human or animal specimens for development, cultivation, and research must also preserve these samples at low temperatures during the experimental and testing stages. However, due to the inability to properly control and manage the refrigeration or freezing equipment, the preservation of these items is prone to loss or damage, which is also a concern for those engaged in related work.
[0006] Therefore, how to effectively manage the storage of drugs or medicines that require low-temperature preservation, or the management of various items that require low-temperature preservation, is the direction that manufacturers in this industry are eager to research and improve. Utility Model Content
[0007] Therefore, in view of the above-mentioned problems and deficiencies, the purpose of this utility model is to provide a locking device for refrigeration equipment.
[0008] This utility model provides a locking device for a refrigeration equipment, including a refrigeration unit and a lock. The refrigeration unit includes a chassis and a door assembled on the chassis for opening and closing. The control part and the latching part of the lock are assembled on the opening and closing side of the chassis and the door. The control part has an interface and a latching unit located inside the interface. The latching unit has a retaining member passing through a shaft, and a driving member drives the retaining member to swing in a fan shape. A locking fastener is provided to restrict the swing of the retaining member. A latching piece protrudes from one side of the latching part to enter and exit the interface of the control part. The latching piece has a latching groove for the retaining member of the latching unit to latch. The control part and the latching part can be opened and closed by an electronic device. Thus, items can be placed or taken out of the storage space inside the chassis of the refrigeration unit, so as to effectively control the number of items to be taken out inside the refrigeration unit.
[0009] The refrigeration unit of this utility model can be a refrigerator, a freezer, or a freezer, etc., and the control unit is provided on the outside of the casing and the door opening side of the refrigeration unit. The control unit further includes a base plate, a cover covering the outside of the base plate, and a hollowed-out insertion interface on one side of the cover. A locking unit is provided on the base plate located inside the insertion interface.
[0010] The chassis of this utility model has at least two or more storage spaces inside, and each of these storage spaces has an entrance / exit facing the outside of the chassis. A control unit base plate and a cover covering the base plate are located on the exterior of one of the storage spaces. One side of the door is pivotally connected to the chassis, and the other side is located outside the chassis as a fan-shaped swing switch. The door has a latch on the exterior of the swing switch side. The control unit base plate includes a controller, a drive component electrically connected to the controller, a locking device, buttons, an information indicator, a temperature sensor, and a data transmitter connected to a preset electronic device. The drive component is a solenoid valve, a motor, a hydraulic cylinder, or a pneumatic cylinder; and the locking device is... The lock is equipped with a key, an electromagnetic lock, or a combination lock; the information indicator is located at the entrance / exit of at least two or more storage spaces inside the chassis, and the information indicator is a light-emitting diode (LED), an LCD screen, or a touch screen; the preset electronic device is a desktop computer, a laptop, a tablet computer, or a smartphone, and is connected to the cooling unit, the lock, and the data transmitter via wired or wireless means, and the data transmitter is a barcode reader or scanner; the latching unit has a latch hook on one side and a shaft rod passing through the middle section, and the other side of the latching member away from the latch hook is connected to the driving member, and the driving member has a movable telescopic driving rod connected to the side of the latching member.
[0011] When using the locking device of this utility model for refrigeration equipment, the electronic device can be activated, allowing the user to log in to the user interface to confirm whether the data transmitter has input data. The electronic device then controls the control unit on the chassis of the refrigeration unit. The control unit activates the drive mechanism to operate the latching component, causing it to disengage from the locking mechanism, allowing the door of the refrigeration unit to open. At least two or more storage slots inside the chassis display the location of the item to be retrieved at the entrance / exit of one of the corresponding slots. This allows for the retrieval or placement of the item. The location of the retrieved or placed item is then confirmed, and the refrigeration unit door is checked to ensure it is closed. The latching tab on the outer side of the door engages with the lock's insertion interface on the outer side of the chassis. This confirms that the retrieval or placement of the item is complete. The electronic device then controls the drive mechanism on the control unit on the chassis, causing the latching component to engage with the latching tab's slot. The information indicators at the entrance / exit of at least one or more storage spaces inside the chassis close, thus completing the retrieval or placement of the item.
[0012] The electronic device of this invention can be a desktop computer, laptop computer, tablet computer, or smartphone; while the refrigeration unit can be a refrigerator, freezer, or freezer, and the item to be retrieved is a medicine, a test sample, or a laboratory sample. Attached Figure Description
[0013] Figure 1 This is a three-dimensional view of the present invention.
[0014] Figure 2 This is a three-dimensional view of the refrigeration unit of this utility model with the door open.
[0015] Figure 3 This is an exploded perspective view of the lock of this utility model.
[0016] Figure 4 This is an exploded perspective view of the locking unit and locking part of this utility model.
[0017] Figure 5 This is a simplified circuit block diagram of this utility model.
[0018] Figure 6 This is a side view of the lock of this utility model in the unlocked state.
[0019] Figure 7 This is a side view of the lock of this utility model in its locked state.
[0020] Figure 8 This is a flowchart (I) illustrating the usage of this utility model.
[0021] Figure 9 This is a flowchart (II) illustrating the usage of this utility model.
[0022] Explanation of reference numerals in the attached drawings: 1-Refrigeration unit; 11-Chassis; 110-Storage space; 111-Storage slot; 1110-Entrance / exit; 12-Door; 13-Information indicator; 2-Lock; 21-Control unit; 210-Insert interface; 211-Base plate; 2111-Controller; 2112-Button; 2113-Temperature sensor; 212-Cover; 22-Lock unit; 221-Linking shaft; 222-Hook; 2220- 2221-Side plate; 2222-Hook; 2223-Rotating shaft hole; 2224-Rotating shaft; 223-Guide hole; 2231-First limiting groove; 2232-Second limiting groove; 224-Drive component; 2240-Through hole; 2241-Shaft; 2242-Frame; 2243-Assembly hole; 225-Locking fastener; 23-Locking part; 231-Locking piece; 2310-Locking groove; 3-Electronic device; 31-Data transmitter. Detailed Implementation
[0023] To achieve the above objectives and effects, the technical means, structure, and implementation methods adopted by this utility model are described in detail below with reference to the preferred embodiments of this utility model, so as to facilitate a complete understanding.
[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 The figures show a three-dimensional view of the present invention, a three-dimensional view of the refrigeration unit with its door open, an exploded three-dimensional view of the lock, an exploded three-dimensional view of the latch unit and latch part, a simplified circuit block diagram, a side view of the lock in its unlocked state, and a side view of the lock in its locked state. As can be clearly seen from the figures, the locking device of the refrigeration equipment of this invention includes a refrigeration unit 1 and a lock 2, wherein:
[0025] The refrigeration unit 1 includes a casing 11 and a door 12 mounted on the casing 11 for opening and closing.
[0026] The lock 2 is assembled on the switch side of the casing 11 and door 12 of the refrigeration unit 1. The lock 2 includes a control unit 21, a latching unit 22, and a latching part 23. The control unit 21 has a plug interface 210 on one side, and the latching unit 22 is located inside the plug interface 210. The latching unit 22 has a fastening member 222 passing through the linkage shaft 221. The fastening member 222 has two opposing side plates 2221. One side of the two side plates 2221 has a guide hole 223, and the other side has a hook 2222. A pivot hole 22 is provided between the guide hole 223 and the hook 2222. 23, and the guide hole 223 is triangular frame-shaped with a first limiting groove 2231 and a second limiting groove 2232. A driving member 224 is assembled at the two guide holes 223 on one side of the fastener 222. The driving member 224 has a movable and telescopic shaft 2241 on one side, and a frame-shaped frame 2242 is provided on the outside of the shaft 2241. Through assembly holes 2243 are provided on both sides of the frame 2242, and a through hole 2240 is provided radially on the shaft 2241, allowing the driving shaft 221 to pass through the guide hole 223 on one side, the through hole 2240, and the other... After the guide hole 2220 on one side, the fastener 222 is assembled onto the shaft 2241 of the drive member 224. The fastener 222 allows the rotating shaft 2224 to pass through the shaft hole 2223 of one side plate 2221, then through the assembly hole 2243 of the frame 2242, and finally through the shaft hole 2223 of the other side plate 2221. This allows the shaft 2241 of the drive member 224 to protrude outwards, driving the connecting shaft 221 from the first limiting groove 2231 of the guide hole 223 to the second limiting groove 2232. Alternatively, the connecting shaft 221 of the drive member 224 can retract inwards to... When the moving shaft 221 moves from the second limiting groove 2232 of the guide hole 223 back to the first limiting groove 2231, the driving member 224 can drive the holding member 222 to swing in a fan shape around the rotating shaft 2224. A locking member 225 is provided on the other side of the holding member 222 to restrict the swing of the holding member 222. A buckle 231 protrudes from one side of the locking part 23 and can enter and exit the insertion interface 210 of the control part 21. The buckle 231 is provided with a buckle groove 2310, which allows the buckle hook 2222 on one side of the holding member 222 of the locking unit 22 to be inserted into or removed from the buckle groove 2310 for locking or unlocking.
[0027] The aforementioned refrigeration unit 1 can be a refrigerator, freezer, or freezer, etc., and a storage space 110 is provided inside the casing 11 of the refrigeration unit 1. The storage space 110 is provided with at least two or more storage slots 111, and an information indicator 13 is provided at the bottom of the entrance 1110 of the at least two or more storage slots 111.
[0028] Furthermore, the control part 21 of the aforementioned lock 2 further includes a base plate 211, a cover 212 covering the outside of the base plate 211, and a hollowed-out insertion interface 210 is provided on one side of the cover 212. A locking unit 22 is provided on the base plate 211 located inside the insertion interface 210.
[0029] Furthermore, the aforementioned refrigeration unit 1 has a base plate 211 and a cover 212 of a control unit 21 with a lock 2 on the outside of the storage space 110 side of the chassis 11. The door 12 is pivotally connected to the chassis 11 on one side and has a fan-shaped swing switch on the other side outside the chassis 11. The door 12 has a latch 23 of the lock 2 on the outside of the swing switch side. The base plate 211 of the control unit 21 may be equipped with a controller 2111, a drive component 224 electrically connected to the controller 2111, a locking fastener 225, a button 2112, an information indicator 13, a temperature sensor 2113, and a data transmitter 31 connected to a preset electronic device 3.
[0030] The aforementioned driving component 224 can be a solenoid valve, motor, hydraulic cylinder, or pneumatic cylinder, etc.; and the locking component 225 can be a keyed lock, electromagnetic lock, or combination lock, etc.; the information indicator 13 is disposed at the bottom of the entrance 1110 of at least two or more storage slots 111 inside the chassis 11, and the information indicator 13 can be a light-emitting diode (LED), liquid crystal display screen, or touch screen, etc.; as for the data transmitter 31, it can be a barcode reader or scanner, etc.
[0031] Please also refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 The figures show a perspective view of the refrigeration unit of this utility model with the door open, an exploded perspective view of the lock, an exploded perspective view of the latch unit and latch part, a simplified circuit block diagram, a side view of the lock in the unlocked state, a side view of the lock in the locked state, a flowchart (I) and a flowchart (II) for use. As can be clearly seen from the figures, the implementation steps of the locking device of the refrigeration equipment of this utility model can be, but are not limited to, those shown above.
[0032] (A01) The preset electronic device 3 is started, connecting the control unit 21 of the cooling host 1 and the lock 2 and the data transmitter 31.
[0033] (A02) The user logs in to the user interface using the preset electronic device 3.
[0034] (A03) Confirm whether there is data input on the data transmitter 31. If not, proceed to step (A02). If yes, proceed to step (A04).
[0035] (A04) The preset electronic device 3 controls the operation of the control unit 21 of the lock 2 on the chassis 11 of the refrigeration unit 1. The controller 2111 of the control unit 21 starts the drive unit 224 to control the action of the fastening member 222, so that the hook 2222 of the fastening member 222 separates from the buckle groove 2310 of the locking part 23.
[0036] (A05) When the door 12 of the refrigeration unit 1 is opened, at least two or more storage slots 111 inside the casing 11, i.e., at the entrance 1110 of one of the corresponding storage slots 111, the information indicator 13 displays the location of the item to be retrieved, so that the user can take out or put in the item to be retrieved from the storage slot 111.
[0037] (A06) Confirm whether the door 12 of the refrigeration unit 1 is closed, and whether the latch 231 of the latch part 23 on the outside of the door 12 is inserted into the insertion interface 210 of the lock 2 on the outside of the chassis 11. If not, proceed to step (A05); if yes, proceed to step (A07).
[0038] (A07) Whether the item to be retrieved has been taken out or placed into any storage slot 111 of the chassis 11 has been completed. If not, proceed to step (A06); if yes, proceed to step (A08).
[0039] (A08) The preset electronic device 3 controls the operation of the drive unit 224 of the control unit 21 on the chassis 11, drives the fastener 222 to engage with the fastener slot 2310 of the fastener 231 of the latch 23, and closes the information indicator 13 at the entrance 1110 of any storage slot 111 in the internal storage space 110 of the chassis 11.
[0040] (A09) Complete the removal or placement of the item to be retrieved.
[0041] The preset electronic device 3 in the above step (A01) can be a desktop computer, laptop computer, tablet computer or smartphone, etc., and can be connected to the cooling host 1, lock 2 and data transmitter 31 via wired or wireless means [Bluetooth, WIFI or radio frequency (RF) etc.].
[0042] In steps (A04) to (A08), the refrigeration unit 1 is a refrigerator, freezer, or freezer, and the item to be retrieved is a medicine, a test specimen, or a laboratory specimen.
[0043] The aforementioned application of the refrigeration unit 1, lock 2, and data transmitter 31 enables limited management and control of items to be retrieved stored in at least two or more storage slots 111 within the internal storage space 110 of the refrigeration unit 1's chassis 11. Authorized users can open or close the lock 2, located on the switch side of the chassis 11 and door 12 of the refrigeration unit 1, by logging into a preset electronic device 3. This prevents unauthorized users from opening the door 12 and retrieving items, effectively managing the items in each storage slot 111 of the refrigeration unit 1. It ensures that any increase or decrease in the number of items stored in the internal storage space 110 of the refrigeration unit 1's chassis 11 can be managed, and prevents the loss or damage of items.
[0044] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. Therefore, any simple modifications and equivalent structural changes made based on the description and drawings of the present utility model should also be included within the protection scope of the present utility model and are hereby stated.
[0045] In summary, the locking device of the refrigeration equipment described above is a highly practical development that can effectively achieve its function and purpose in actual application and implementation.
Claims
1. A locking device for a refrigeration equipment, comprising a refrigeration unit and a lock, characterized in that: The refrigeration unit includes a chassis and a door assembled on the chassis for opening and closing. and The lock is assembled on the switch side of the chassis and door of the refrigeration unit, including a control part and a latching part. The control part includes a plug interface and a latching unit located inside the plug interface. The latching unit includes a fastening member passing through the shaft, a driving member assembled on one side of the fastening member to drive the fastening member to swing in a fan shape, and a locking member to limit the swing of the fastening member. A latching piece protrudes from one side of the latching part to enter and exit the plug interface of the control part, and the latching piece is provided with a latching groove for the latching unit to latch.
2. The locking device for the refrigeration equipment as described in claim 1, characterized in that, The refrigeration unit is a refrigerator, freezer, or freezer.
3. The locking device for the refrigeration equipment as described in claim 1, characterized in that, The refrigeration unit has a control unit located on the outside of the chassis and door switch side. The control unit also includes a base plate, a cover covering the outside of the base plate, and a hollowed-out insertion interface on one side of the cover. A locking unit is located on the base plate inside the insertion interface.
4. The locking device for the refrigeration equipment as described in claim 3, characterized in that, The chassis has an internal storage space with at least two storage slots, each with an entrance facing outwards. A control unit base and a cover are located on one side of the storage space. A door, pivotally connected to the chassis on one side and externally located on the other side, is a fan-shaped swing switch. A latch is located on the outside of the swing switch side of the door. The control unit base includes a controller, a drive unit electrically connected to the controller, locking devices, buttons, an information indicator, a temperature sensor, and a data transmitter connected to a pre-set electronic device. The drive unit is a solenoid valve, motor, hydraulic cylinder, or pneumatic cylinder. The locking device is a keyed lock, electromagnetic lock, or combination lock.
5. The locking device for the refrigeration equipment as described in claim 4, characterized in that, If the information indicator is located at the entrance / exit of at least two storage slots inside the chassis, then the information indicator is a light-emitting diode, a liquid crystal display screen, or a touch screen.
6. The locking device for the refrigeration equipment as described in claim 4, characterized in that, The preset electronic device is a desktop computer, laptop computer, tablet computer, or smartphone, and is connected to the refrigeration unit, lock, and data transmitter via wired or wireless means. The data transmitter is a barcode reader or scanner.
7. The locking device for the refrigeration equipment as described in claim 1, characterized in that, The latching unit has a latch hook on one side and a shaft rod passing through the middle section. The other side of the latching unit, away from the latch hook, is connected to the driving member. The driving member has a movable telescopic driving rod connected to the side of the latching member.