Refrigerator car with quick release unit

The quick-release unit design enables rapid installation and disassembly of refrigeration units in refrigerated trucks, solving the problem of time-consuming processes in existing technologies and improving transportation efficiency and safety.

CN224576442UActive Publication Date: 2026-07-31ANHUI JUJU AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI JUJU AUTOMOBILE CO LTD
Filing Date
2025-09-05
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The refrigeration units of existing refrigerated trucks are installed by welding or fixing with a large number of bolts, which makes maintenance or replacement time-consuming and affects transportation efficiency.

Method used

The unit adopts a quick-release design, using plugs and slots to enable rapid installation and removal of the indoor and outdoor refrigeration units from the vehicle compartment. The refrigerant piping and electrical wiring are quickly connected and sealed through the plug-in mating of self-sealing female and male connectors.

Benefits of technology

It simplifies the installation and dismantling process of the unit, increases the dismantling speed, prevents refrigerant leakage, ensures that the system can be quickly restored to a sealed state, and improves transportation efficiency.

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Abstract

This utility model belongs to the technical field of refrigeration units, specifically a refrigerated truck with a quick-release unit, including a truck body, an indoor refrigeration unit, and an outdoor refrigeration unit. It also includes: two fixed seats fixed to the truck body; fixed plates fixed to the outer walls of the indoor and outdoor refrigeration units, with slots on the fixed plates; and plugs on one side of the fixed seats that insert into the slots; two self-sealing female connectors fixed to refrigerant pipes fixed to the bottom of the indoor and outdoor refrigeration units respectively; the truck body is penetrated by a connecting pipe, with male connectors fixed at both ends of the connecting pipe for insertion into the two self-sealing female connectors; and a socket fixed to the fixed seats, with a plug installed on the socket, and plugs connected to the indoor and outdoor refrigeration units respectively for insertion into plugs. This utility model allows for the installation and disassembly of the refrigeration unit without tightening or loosening numerous bolts. Simultaneously, the refrigeration piping is connected synchronously with the unit installation, and the electrical wiring is quickly connected via plugs.
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Description

Technical Field

[0001] This utility model belongs to the technical field of refrigeration units, and more specifically, it relates to a refrigerated truck with a quick-release unit. Background Technology

[0002] Refrigerated trucks, as a type of special transport vehicle equipped with a dedicated refrigeration system and an insulated compartment, rely on the refrigeration system to precisely control the temperature and humidity inside the compartment in order to maintain the quality of temperature-sensitive goods such as fresh produce and pharmaceuticals during long-distance transportation. Currently, the refrigeration units of existing refrigerated trucks are usually fixed to the truck body by welding or a large number of bolts. This installation method has many drawbacks: when the unit needs to be repaired due to failure or the model needs to be changed due to changes in cargo transportation needs, it is necessary to cut the welds one by one or remove a large number of bolts. The operation may take several hours or even longer, which directly leads to vehicle downtime and cargo delays, seriously affecting transportation efficiency.

[0003] To address the aforementioned issues, this application proposes a refrigerated truck with a quick-release unit. Utility Model Content

[0004] The purpose of this utility model is to provide a refrigerated truck with a quick-release unit, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a refrigerated truck with a quick-release unit, including a cargo compartment, an indoor refrigeration unit, and an outdoor refrigeration unit, and further includes: Two fixed seats are fixedly connected to the inner wall and outer wall of the carriage, respectively. The outer wall of the refrigeration indoor unit and the refrigeration outdoor unit is fixedly provided with a fixed plate, and the fixed plate is provided with a slot. One side of the fixed seat is provided with a plug that is inserted into the slot. Two self-sealing female connectors are fixedly connected to the refrigerant pipes fixed at the bottom of the indoor and outdoor refrigeration units, respectively. The compartment is penetrated by the connecting pipe, and male connectors that are inserted into the two self-sealing female connectors are fixed at both ends of the connecting pipe. A socket is fixedly connected to a base, and a plug is installed on the socket. The indoor and outdoor refrigeration units are respectively connected to plugs that are plugged into plug one.

[0006] Furthermore, a fixed shell is fixedly provided on the outer wall of the fixed base, and a receiving groove for accommodating the insert is provided on the outer wall of the fixed shell. The fixed plate is provided with a groove that mates with the fixed shell, and the groove communicates with the slot. A bidirectional screw is rotatably installed inside the fixed shell, and the bidirectional screw is threadedly connected to two movable seats. A connecting block that is slidably connected to the fixed shell is fixedly provided on one side of the insert. The connecting block and the movable seats are respectively fixedly provided with hinge seats that are hinged to both ends of the connecting rod. A guide rod that is slidably connected to the movable seats is fixedly provided inside the fixed shell.

[0007] Furthermore, a support plate is fixedly provided on one side of the fixed base, and an outer protective shell is fixedly provided on the bottom surface of the support plate. Two meshing bevel gears are provided inside the outer protective shell. One bevel gear is fixedly connected to a bidirectional screw through a connecting shaft, and the other bevel gear is fixedly connected to a handwheel outside the outer protective shell through a connecting shaft.

[0008] Furthermore, the self-sealing female connector has a flow groove, and the flow groove has a stepped sealing groove. The self-sealing female connector has a sealing block that mates with the sealing groove. A fixing sleeve is fixedly installed at the top of the sealing block. A slider is slidably installed inside the fixing sleeve. A spring is fixed between the bottom of the slider and the fixing sleeve. A smooth rod is fixedly installed at the top of the spring and is connected to the sealing block. The smooth rod is fixedly connected to the inner wall of the self-sealing female connector through a connecting plate.

[0009] Furthermore, the inner wall of the male connector is fixedly connected to the top rod through a connecting plate, and a sealing block is fixedly provided at the top of the male connector. The flow groove is provided with a stepped sealing groove that cooperates with the sealing block.

[0010] Furthermore, the two stepped outer walls of the first sealing block are fixed with rubber pads that are interference fit with the first sealing groove, and the two stepped outer walls of the second sealing block are fixed with rubber pads that are interference fit with the second sealing groove.

[0011] Furthermore, the outer wall of the second plug is provided with an annular groove, and the annular groove is slidably connected to one end of the threaded sleeve. The outer wall of one end of the first plug is fixed with a threaded block that is threadedly connected to the threaded sleeve.

[0012] Furthermore, the outer wall of the fixed base is fixed with a guide rail, and the fixed plate is provided with a guide groove that cooperates with the guide rail.

[0013] Furthermore, a U-shaped fixing frame is fixedly provided on the bottom surface of the support plate, and the U-shaped fixing frame is fixedly connected to the outer wall of the end of the connecting pipe.

[0014] This utility model has the following beneficial effects: This utility model enables the rapid installation and disassembly of the indoor and outdoor refrigeration units with the vehicle compartment through the cooperation of plugs and slots. When installing or disassembling the unit, operators do not need to use tools to tighten or loosen a large number of bolts, which simplifies the operation process and improves the disassembly speed of the unit. This invention enables refrigerant piping to be connected in one step during assembly by using a self-sealing female connector and a male connector. The connection between plug two and plug one allows for quick connection of electrical circuits. Furthermore, the self-sealing female connector automatically seals when disconnected, effectively preventing refrigerant leakage during disassembly. This protects the environment, avoids refrigerant waste, and ensures that the system can quickly return to a sealed state upon reinstallation, allowing for reliable operation.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a schematic diagram of the structure of the indoor and outdoor refrigeration units of this utility model; Figure 3 This is a schematic diagram of the refrigeration indoor unit structure of this utility model; Figure 4 This is a cross-sectional structural diagram of some components of this utility model; Figure 5 This is a cross-sectional view of the male connector of this utility model; Figure 6 This is a schematic diagram of the fixing plate and part of the structure of this utility model; Figure 7 This is a schematic cross-sectional view of the fixed shell structure of this utility model; Figure 8 This is a partial structural schematic diagram of the present invention; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Carriage; 2. Indoor refrigeration unit; 3. Outdoor refrigeration unit; 4. Fixing plate; 401. Tank; 4011. Slot; 402. Guide slot; 5. Fixing seat; 501. Support plate; 5011. Outer shell; 5012. U-shaped fixing bracket; 502. Guide rail; 6. Fixing shell; 601. Receiving slot; 602. Double-acting screw; 603. Guide rod; 7. Moving seat; 8. Connecting rod; 9. Insert block; 901. Connecting block; 10. Bevel gear; 11. Socket; 1101. Plug one ; 1102, Threaded block; 12, Plug II; 1201, Annular groove; 1202, Threaded sleeve; 13, Refrigerant pipe; 14, Self-sealing female connector; 1401, Flow groove; 1402, Sealing groove I; 1403, Sealing groove II; 15, Male connector; 1501, Connecting pipe; 16, Push rod; 1601, Connecting plate I; 17, Smooth rod; 1701, Connecting plate II; 18, Slider; 19, Spring; 20, Sealing block I; 2001, Fixing sleeve; 21, Sealing block II. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Please see Figure 1 - Figure 8As shown, this utility model is a refrigerated truck with a quick-release unit, including a compartment 1, an indoor refrigeration unit 2, and an outdoor refrigeration unit 3. It also includes: two fixed seats 5, which are fixedly connected to the inner and outer walls of the compartment 1, respectively; fixed plates 4 are fixedly provided on the outer walls of the indoor refrigeration unit 2 and the outdoor refrigeration unit 3, and the fixed plates 4 have slots 4011; a plug block 9 is provided on one side of the fixed seat 5 to be inserted into the slot 4011; two self-sealing female connectors 14, which are fixedly connected to the refrigerant pipes 13 fixed at the bottom of the indoor refrigeration unit 2 and the outdoor refrigeration unit 3, respectively; the compartment 1 is penetrated by a connecting pipe 1501, and male connectors 15 are fixedly provided at both ends of the connecting pipe 1501 to be inserted into the two self-sealing female connectors 14; a socket 11, which is fixedly connected to the fixed seat 5; a plug 1101 is installed on the socket 11; and the indoor refrigeration unit 2 and the outdoor refrigeration unit 3 are respectively connected to plug 12 to be inserted into plug 1101. This embodiment provides a refrigerated truck with a quick-release unit. The fixed plate 4 and the fixed seat 5 are fixedly connected by plugging the plug 9 into the slot 4011, completing the connection between the indoor refrigeration unit 2 and the outdoor refrigeration unit 3 and the truck body 1. The truck body 1 is penetrated by the connecting pipe 1501. The refrigerant pipeline is quickly connected by plugging the self-sealing female connector 14 and the male connector 15. The socket 11 is connected to the power line and control signal line from the vehicle battery or generator. The electrical signal is quickly connected by plug 12 and plug 1101.

[0021] The fixed base 5 has a fixed shell 6 fixed on its outer wall, and the outer wall of the fixed shell 6 has a receiving groove 601 for accommodating the insert 9. The fixed plate 4 has a groove 401 that mates with the fixed shell 6, and the groove 401 communicates with the slot 4011. A bidirectional screw 602 is rotatably installed inside the fixed shell 6, and the bidirectional screw 602 is threadedly connected to the two movable seats 7. A connecting block 901 that is slidably connected to the fixed shell 6 is fixed on one side of the insert 9. The connecting block 901 and the movable seat 7 are respectively fixed with hinge seats that are hinged to both ends of the connecting rod 8. A guide rod 603 that is slidably connected to the movable seat 7 is fixed inside the fixed shell 6. The rotation of the bidirectional screw 602 causes the movable seat 7 to move towards or away from each other along the guide rod 603. By pushing or pulling the connecting block 901 through the connecting rod 8, the insert 9 is inserted into or removed from the slot 4011, thereby realizing the quick locking or unlocking of the fixed plate 4 and the fixed base 5.

[0022] The fixed base 5 has a support plate 501 fixed on one side, and an outer shell 5011 is fixed on the bottom surface of the support plate 501. The outer shell 5011 has two meshing bevel gears 10. One bevel gear 10 is fixed to the bidirectional screw 602 through a connecting shaft, and the other bevel gear 10 is fixed to the handwheel outside the outer shell 5011 through a connecting shaft. The support plate 501 supports the indoor unit 2 and the outdoor unit 3. By rotating the handwheel, the two bevel gears 10 are driven to rotate, which in turn drives the bidirectional screw 602 to rotate.

[0023] The self-sealing female connector 14 has a flow groove 1401, and the flow groove 1401 has a stepped sealing groove 1402. A sealing block 20 that mates with the sealing groove 1402 is provided inside the self-sealing female connector 14. A fixing sleeve 2001 is fixedly mounted on the top of the sealing block 20. A slider 18 is slidably mounted inside the fixing sleeve 2001. A spring 19 is fixed between the bottom of the slider 18 and the fixing sleeve 2001. A smooth rod 17 fixedly mounted on the top of the spring 19 and connected to the sealing block 20 is fixedly mounted. The smooth rod 17 is fixedly connected to the inner wall of the self-sealing female connector 14 through a connecting plate 1701. In the initial state, the spring... When spring 19 is in its natural state, sealing block 20 and sealing groove 1402 fit tightly together to seal self-sealing female connector 14 and prevent refrigerant leakage. Self-sealing female connector 14 is fixed to the unit through refrigerant pipe 13. During unit installation, self-sealing female connector 14 moves down synchronously with the unit and inserts into male connector 15. During unit installation, the refrigerant pipeline connection is completed synchronously. When self-sealing female connector 14 moves down and inserts into male connector 15, it pushes sealing block 20 to move upward, compressing spring 19. Sealing block 20 disengages from sealing groove 1402, allowing refrigerant to flow through flow channel 1401.

[0024] The inner wall of the male connector 15 is fixedly connected to the top rod 16 via the connecting plate 1601, and the top of the male connector 15 is fixedly provided with a sealing block 21. The flow groove 1401 is provided with a stepped sealing groove 1403 that cooperates with the sealing block 21. After the female connector 14 and the male connector 15 are inserted together, the top rod 16 lifts the sealing block 20, and the sealing block 21 and the sealing groove 1403 fit tightly to form a seal, ensuring the reliability of the refrigerant pipeline connection.

[0025] Among them, the two stepped outer walls of the sealing block 20 are fixed with rubber gaskets that are interference fit with the sealing groove 1402, and the two stepped outer walls of the sealing block 21 are fixed with rubber gaskets that are interference fit with the sealing groove 2403, thereby enhancing the sealing effect.

[0026] The outer wall of plug 12 is provided with an annular groove 1201, and the annular groove 1201 is slidably connected to one end of the threaded sleeve 1202. The outer wall of one end of plug 1101 is fixed with a threaded block 1102 that is threadedly connected to the threaded sleeve 1202. After plug 12 and plug 1101 are inserted together, the threaded sleeve 1202 is rotated to make it threadedly connected to the threaded block 1102, thereby fixing plug 12 and plug 1101 together and preventing plug 1101 from detaching.

[0027] The outer wall of the fixed base 5 is fixed with a guide rail 502, and the fixed plate 4 is provided with a guide groove 402 that cooperates with the guide rail 502 to ensure that the fixed shell 6 is aligned with the groove 401, and also to ensure that the self-sealing female connector 14 is aligned with the male connector 15.

[0028] Among them, a U-shaped fixing frame 5012 is fixedly provided on the bottom surface of the support plate 501, and the U-shaped fixing frame 5012 is fixedly connected to the outer wall of the end of the connecting pipe 1501 to reinforce the connecting pipe 1501 and ensure that the connecting pipe 1501 is stably fixed on the side of the carriage 1.

[0029] It is understood that the installation and disassembly of the refrigeration unit can be completed without tightening or loosening a large number of bolts. At the same time, the refrigeration pipeline is connected synchronously with the unit installation, and the electrical circuit is quickly connected through the plug 12 and plug 1101.

[0030] A specific application of the operation process of this embodiment is as follows: First, push the indoor unit 2 and the outdoor unit 3 into the guide rail 502 of the fixed seat 5 through the guide groove 402 of the fixed plate 4, so that the indoor unit 2 and the outdoor unit 3 are placed on the support plate 501 respectively. The self-sealing female connector 14 and the male connector 15 are inserted to complete the connection of the refrigerant pipeline. Then, rotate the handwheel to drive the bevel gear 10 to drive the bidirectional screw 602 to rotate. Further, the moving seat 7 drives the connecting rod 8 to move, so that the connecting rod 8 drives the insert block 9 to insert into the slot 4011 through the connecting block 901, thus completing the fixing of the indoor unit 2 and the outdoor unit 3. Then plug 12 into plug 1101, rotate threaded sleeve 1202 to threaded block 1102 to fix plug 12; During disassembly, first rotate the threaded sleeve 1202 to separate it from the threaded block 1102, unplug the plug 12, then rotate the handwheel to drive the bidirectional screw 602 to rotate through the bevel gear 10, further driving the plug 9 to separate from the slot 4011 through the moving seat 7, connecting rod 8 and connecting block 901, releasing the lock between the fixing seat 5 of the fixing plate 4, and then pull the indoor unit 2 and the outdoor unit 3 upwards to remove them. When the indoor unit 2 and the outdoor unit 3 are removed, the self-sealing female connector 14 will automatically seal to prevent refrigerant leakage.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A refrigerated vehicle with quick-release unit, comprising a vehicle compartment (1), a refrigeration indoor unit (2) and a refrigeration outdoor unit (3), characterized in that, Also includes: Two fixed seats (5) are fixedly connected to the inner wall and outer wall of the carriage (1) respectively. The outer wall of the refrigeration unit (2) and the refrigeration unit (3) is fixedly provided with a fixed plate (4), and the fixed plate (4) is provided with a slot (4011). The fixed seat (5) is provided with a plug (9) that is inserted into the slot (4011) on one side. Two self-sealing female connectors (14) are fixedly connected to the refrigerant pipes (13) fixed at the bottom of the refrigeration indoor unit (2) and the refrigeration outdoor unit (3), respectively. The carriage (1) is penetrated by the connecting pipe (1501), and the two ends of the connecting pipe (1501) are respectively fixed with male connectors (15) that are inserted into the two self-sealing female connectors (14). The socket (11) is fixedly connected to the fixed base (5). The socket (11) is equipped with a plug (1101). The indoor unit (2) and the outdoor unit (3) are respectively connected to plugs (12) that are plugged into the plug (1101).

2. The refrigerated vehicle having quick release unit as claimed in claim 1 wherein: The outer wall of the fixed base (5) is fixedly provided with a fixed shell (6), and the outer wall of the fixed shell (6) is provided with a receiving groove (601) for accommodating the insert (9). The fixed plate (4) is provided with a groove (401) that cooperates with the fixed shell (6), and the groove (401) communicates with the slot (4011). A bidirectional screw (602) is rotatably installed inside the fixed shell (6), and the bidirectional screw (602) is threadedly connected to the two moving seats (7). A connecting block (901) that is slidably connected to the fixed shell (6) is fixedly provided on one side of the insert (9). The connecting block (901) and the moving seat (7) are respectively fixedly provided with hinge seats that are hinged to both ends of the connecting rod (8). A guide rod (603) that is slidably connected to the moving seat (7) is fixedly provided inside the fixed shell (6).

3. A refrigerated vehicle having quick release units as claimed in claim 2, wherein: A support plate (501) is fixedly provided on one side of the fixed base (5), and an outer shell (5011) is fixedly provided on the bottom surface of the support plate (501). Two meshing bevel gears (10) are provided inside the outer shell (5011). One bevel gear (10) is fixedly connected to the bidirectional screw (602) through a connecting shaft, and the other bevel gear (10) is fixedly connected to the handwheel outside the outer shell (5011) through a connecting shaft.

4. The refrigerated vehicle having quick release unit as claimed in claim 1 wherein: The self-sealing female connector (14) is provided with a flow groove (1401), and the flow groove (1401) is provided with a stepped sealing groove (1402). The self-sealing female connector (14) is provided with a sealing block (20) that cooperates with the sealing groove (1402). The top of the sealing block (20) is fixedly provided with a fixing sleeve (2001). The fixing sleeve (2001) is slidably provided with a slider (18). A spring (19) is fixed between the bottom of the slider (18) and the fixing sleeve (2001). The top of the spring (19) is fixedly provided with a smooth rod (17) that is fixedly connected to the sealing block (20). The smooth rod (17) is fixedly connected to the inner wall of the self-sealing female connector (14) through a connecting plate (1701).

5. A refrigerated vehicle having quick release units as claimed in claim 4 wherein: The inner wall of the male connector (15) is fixedly connected to the top rod (16) through the connecting plate (1601), and the top of the male connector (15) is fixedly provided with a sealing block (21). The flow groove (1401) is provided with a stepped sealing groove (1403) that cooperates with the sealing block (21).

6. A refrigerated vehicle having quick release units as claimed in claim 5 wherein: The two stepped outer walls of the sealing block one (20) are fixed with rubber pads that are interference fit with the sealing groove one (1402), and the two stepped outer walls of the sealing block two (21) are fixed with rubber pads that are interference fit with the sealing groove two (1403).

7. The refrigerated vehicle having quick release unit as claimed in claim 1 wherein: The outer wall of the second plug (12) is provided with an annular groove (1201), and the annular groove (1201) is slidably connected to one end of the threaded sleeve (1202). The outer wall of one end of the first plug (1101) is fixed with a threaded block (1102) that is threadedly connected to the threaded sleeve (1202).

8. The refrigerated truck having quick release unit as claimed in claim 1 wherein: The outer wall of the fixed base (5) is fixed with a guide rail (502), and the fixed plate (4) is provided with a guide groove (402) that cooperates with the guide rail (502).

9. The refrigerated vehicle having quick release unit as claimed in claim 3 wherein: The bottom surface of the support plate (501) is fixed with a U-shaped fixing frame (5012), and the U-shaped fixing frame (5012) is fixedly connected to the outer wall of the end of the connecting pipe (1501).