Automatic ventilation structure of refrigerator car

Abstract

The utility model relates to an automatic ventilation structure of a refrigerator car, which belongs to the technical field of refrigerator cars and comprises a refrigerator car head, a car chassis is arranged on one side of the refrigerator car head, a heat preservation compartment is arranged on the car chassis, a ventilation channel is arranged on the heat preservation compartment, and a sealing structure and a control structure are arranged on the heat preservation compartment. According to the automatic ventilation structure of the refrigerator car, a timing sensor on a control box is used for starting an asynchronous motor in a driving assembly and driving a connecting rod to rotate, so that the rotating connecting rod drives a circular sealing cover to rotate through a connecting piece and is folded with a butt joint ring, and a sealing rubber pocket in the circular sealing cover is connected to the outer surface of a ventilation channel in a sleeving manner; and then two electric push rods in the feeding assembly are used for controlling two arc-shaped clamping plates to move towards the opposite sides, so that the sealing rubber bag is folded, the ventilation channel is sealed, the problem that cold air in the heat preservation compartment runs out through the ventilation channel is solved, and the situation that due to continuous work of a refrigerating unit, energy consumption is large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerated trucks, in particular to an automatic ventilation structure of a refrigerated truck. Background Art

[0002] A refrigerated truck is a vehicle specially designed for transporting items that need to be stored at a constant temperature. Its main function is to keep the temperature of the items stable during transportation and prevent them from spoiling. The working principle of a refrigerated truck is to use a refrigeration system to keep the temperature inside the vehicle lower than the external temperature, thereby ensuring that the goods remain fresh and refrigerated during transportation. Refrigerated trucks can be classified according to different standards. For example, according to their size, they can be divided into refrigerated semi-trailers, large and medium-sized refrigerated trucks, small refrigerated trucks and micro refrigerated trucks. Refrigerated trucks are mainly composed of a front, a car chassis, an insulated body, a refrigeration unit, a temperature recorder and a ventilation tunnel.

[0003] In the current existing technology, refrigerated trucks use fans inside the ventilation tunnel to achieve automatic ventilation. A dust-proof net is also installed on the ventilation tunnel. When the insulated compartment needs to be ventilated, the air inside and outside the insulated compartment is exchanged by controlling the fan to start. Since the ventilation tunnel is directly connected to the insulated compartment and the outside world, the cold air inside the insulated compartment continuously escapes, requiring the refrigeration unit to continue working to ensure the low temperature environment of the insulated compartment, which makes the energy consumption during the transportation of the refrigerated truck relatively large. Therefore, an automatic ventilation structure of a refrigerated truck is proposed to solve the above problems. Utility Model Content

[0004] In response to the deficiencies in the prior art, the present invention provides an automatic ventilation structure for a refrigerated truck, which has the advantage of an automatically closed ventilation corridor. It solves the problem of exchanging gases inside and outside the insulated compartment by controlling the start of a fan when the insulated compartment needs to be ventilated. Since the ventilation corridor is directly connected to the insulated compartment and the outside world, the cold air inside the insulated compartment continuously escapes, requiring the refrigeration unit to work continuously to ensure the low temperature environment of the insulated compartment, thereby causing the problem of high energy consumption during the transportation of the refrigerated truck.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an automatic ventilation structure for a refrigerated truck, comprising a refrigerated truck head, a vehicle chassis provided on one side of the refrigerated truck head, a heat-insulating compartment provided on the chassis, a ventilation tunnel provided on the heat-insulating compartment, and a sealing structure and a control structure provided on the heat-insulating compartment;

[0006] The closed structure includes a docking ring fixedly mounted on the front of the insulation compartment, a circular cover for covering the ventilation passage is provided on the front of the insulation compartment, two arc-shaped splints are slidably mounted inside the circular cover, and sealing rubber bags for closing the ventilation passage are fixedly connected to the two arc-shaped splints, a guide assembly for limiting the movement trajectory of the arc-shaped splint is provided on the circular cover, and a feed assembly for controlling the movement of the arc-shaped splint is provided on the circular cover.

[0007] Furthermore, the control structure includes a support frame fixedly installed on the front of the insulation compartment, a control box fixedly installed on the bottom of the support frame and the front of the insulation compartment, a drive assembly is provided inside the control box, and a connector for connecting the circular cover is provided inside the support frame.

[0008] Furthermore, the automobile chassis is fixedly connected to the refrigerated truck head, the thermal insulation compartment is fixedly mounted on the automobile chassis, and the ventilation tunnel is fixedly mounted inside the thermal insulation compartment and one end passes through and extends to the outside of the thermal insulation compartment.

[0009] Furthermore, the guide assembly includes two guide rods, one end of each of which is fixedly connected to two arc-shaped clamping plates respectively. Two connecting holes are provided on the circular cover, and one end of each guide rod passes through the connecting holes and extends to the outside of the circular cover.

[0010] Furthermore, the feed assembly includes two electric push rods and two mounting brackets, the two mounting brackets are respectively fixedly mounted on the top and bottom of the circular cover, the two electric push rods are fixedly mounted on the mounting brackets, one end of the electric push rod passes through and extends to the interior of the circular cover, and the telescopic end of the electric push rod is fixedly connected to the arc-shaped splint.

[0011] Furthermore, the control box includes a mounting box and a timing sensor, the timing sensor is fixedly mounted on one side of the mounting box, and the mounting box is fixedly mounted on the front side of the insulation compartment.

[0012] Furthermore, the drive assembly includes a connecting rod and an asynchronous motor, the asynchronous motor is fixedly installed inside the control box, the connecting rod is rotatably installed inside the support frame and one end passes through and extends into the interior of the control box, the output shaft of the asynchronous motor is fixedly connected to one end of the connecting rod through a coupling, and the connecting member is fixedly installed on the outer surface of the connecting rod and the circular cover.

[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0014] The automatic ventilation structure of the refrigerated truck is provided with a closed structure and a control structure, which realizes that the timing sensor on the control box is used to start the asynchronous motor in the drive assembly and drive the connecting rod to rotate, so that the rotating connecting rod drives the circular cover to rotate through the connecting piece and closes with the docking ring, so that the sealing rubber bag inside the circular cover is sleeved on the outer surface of the ventilation tunnel, and then the two electric push rods in the feed assembly are used to control the two arc-shaped clamping plates to move to the opposite side, so as to fold the sealing rubber bag and seal the ventilation tunnel, thereby solving the problem of cold air inside the insulated compartment escaping through the ventilation tunnel, avoiding the continuous operation of the refrigeration unit resulting in high energy consumption, and thus enhancing the practicality of the automatic ventilation structure of the refrigerated truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 A magnified view of point A in the figure;

[0017] Figure 3 It is a three-dimensional schematic diagram of the control box and support frame of the utility model structure.

[0018] In the figure: 1. Refrigerated truck head; 2. Truck chassis; 3. Insulated truck body; 4. Ventilation tunnel; 51. Docking ring; 52. Round cover; 53. Arc-shaped splint; 54. Sealing rubber pocket; 55. Guide assembly; 56. Feed assembly; 57. Support frame; 58. Control box; 59. Drive assembly; 60. Connector. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 In this embodiment, an automatic ventilation structure of a refrigerated truck includes a refrigerated truck head 1, a car chassis 2 is provided on one side of the refrigerated truck head 1, an insulation compartment 3 is provided on the car chassis 2, a ventilation tunnel 4 is provided on the insulation compartment 3, a closing structure and a control structure are provided on the insulation compartment 3, the car chassis 2 is fixedly connected to the refrigerated truck head 1, the insulation compartment 3 is fixedly installed on the car chassis 2, the ventilation tunnel 4 is fixedly installed inside the insulation compartment 3 and one end passes through and extends to the outside of the insulation compartment 3.

[0021] In the embodiment of this example, the closing structure includes a docking ring 51 fixedly mounted on the front of the heat-insulating compartment 3, and a circular cover 52 for covering the ventilation passage 4 is provided on the front of the heat-insulating compartment 3. Two arc-shaped splints 53 are slidably installed inside the circular cover 52, and the two arc-shaped splints 53 are fixedly connected with a sealing rubber bag 54 for closing the ventilation passage 4, so as to close the ventilation passage 4 and prevent the loss of cold air. A guide assembly 55 for limiting the moving trajectory of the arc-shaped splint 53 is provided on the circular cover 52, and the guide assembly 55 includes two guide rods, one end of the two guide rods is fixedly connected to the two arc-shaped splints 53 respectively, and two connecting holes are provided on the circular cover 52. One end of the guide rod passes through the connecting hole and extends to the outside of the circular cover 52, so as to limit the moving trajectory of the arc-shaped splint 53. A feeding assembly 56 for controlling the movement of the arc-shaped splint 53 is provided on the circular cover 52, so as to control the up and down movement of the arc-shaped splint 53.

[0022] Among them, the feeding assembly 56 includes two electric push rods and two mounting frames, which are respectively fixedly mounted on the top and bottom of the circular cover 52. The two electric push rods are fixedly mounted on the mounting frames. One end of the electric push rod passes through and extends to the interior of the circular cover 52. The telescopic end of the electric push rod is fixedly connected to the arc-shaped splint 53, so that the electric push rod can be used to control the two arc-shaped splints 53 to move to the opposite side and close the sealing rubber bag 54.

[0023] By adopting the above technical solution, the circular cover 52 is flipped toward the ventilation tunnel 4 by means of the control structure until the circular cover 52 is closed with the docking ring 51, and then the two electric push rods in the feed assembly 56 are started to control the two arc-shaped clamping plates 53 to move to the opposite side, and then the two arc-shaped clamping plates 53 are used to retract the sealing rubber bag 54, and the sealing rubber bag 54 is used to close the ventilation tunnel 4, thereby preventing the cold air inside the insulation compartment 3 from being discharged through the ventilation tunnel 4 when no ventilation is performed.

[0024] In the embodiment of this example, the control structure includes a support frame 57 fixedly mounted on the front of the insulation compartment 3, a control box 58 fixedly mounted on the bottom of the support frame 57 and the front of the insulation compartment 3, a drive assembly 59 is provided inside the control box 58, a connector 60 for connecting the circular cover 52 is provided inside the support frame 57, the drive assembly 59 includes a connecting rod and an asynchronous motor, the asynchronous motor is fixedly mounted inside the control box 58, the connecting rod is rotatably mounted inside the support frame 57 and one end passes through and extends to the inside of the control box 58, the output shaft of the asynchronous motor is fixedly connected to one end of the connecting rod through a coupling, and the connecting member 60 is fixedly mounted on the outer surface of the connecting rod and the circular cover 52, so that the asynchronous motor drives the connecting rod to rotate, so that the rotating connecting rod drives the circular cover 52 to flip through the connecting member 60.

[0025] Among them, the control box 58 includes a mounting box and a timing sensor. The timing sensor is fixedly installed on one side of the mounting box, and the mounting box is fixedly installed on the front side of the insulation compartment 3, so as to facilitate the use of the timing sensor to control the opening and closing of the asynchronous motor.

[0026] By adopting the above technical solution, the asynchronous motor in the internal drive component 59 of the start-up control box 58 is realized and the connecting rod is driven to rotate inside the support frame 57, so that the rotating connecting rod drives the connecting member 60 to rotate synchronously, and then the connecting member 60 drives the circular cover 52 to flip toward the ventilation channel 4.

[0027] The working principle of the above embodiment is:

[0028] The automatic ventilation structure of the refrigerated truck, when not in use, starts the asynchronous motor in the driving assembly 59 inside the control box 58 and drives the connecting rod to rotate inside the support frame 57, so that the rotating connecting rod drives the connecting piece 60 to rotate synchronously, and then the connecting piece 60 drives the circular cover 52 to flip toward the ventilation tunnel 4 until the circular cover 52 and the docking ring 51 are closed, and then the two electric push rods in the feed assembly 56 are started to control the two arc-shaped splints 53 to move to the opposite side, and then the two arc-shaped splints 53 are used to fold the sealing rubber bag 54, and the sealing rubber bag 54 is used to close the ventilation tunnel 4, thereby preventing the cold air inside the insulated compartment 3 from being discharged through the ventilation tunnel 4 when ventilation is not performed.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic ventilation structure for a refrigerated truck, comprising a refrigerated truck head (1), characterized in that: A car chassis (2) is provided on one side of the refrigerated vehicle head (1), a heat-insulating compartment (3) is provided on the car chassis (2), a ventilation tunnel (4) is provided on the heat-insulating compartment (3), and a sealing structure and a control structure are provided on the heat-insulating compartment (3); The closed structure includes a docking ring (51) fixedly mounted on the front of the heat-insulating compartment (3); a circular cover (52) for covering the ventilation tunnel (4) is provided on the front of the heat-insulating compartment (3); two arc-shaped clamping plates (53) are slidably mounted inside the circular cover (52); a sealing rubber bag (54) for closing the ventilation tunnel (4) is fixedly connected to the two arc-shaped clamping plates (53); a guide assembly (55) for limiting the movement trajectory of the arc-shaped clamping plates (53) is provided on the circular cover (52); and a feeding assembly (56) for controlling the movement of the arc-shaped clamping plates (53) is provided on the circular cover (52).

2. The automatic ventilation structure of a refrigerated vehicle according to claim 1, characterized in that: The control structure comprises a support frame (57) fixedly mounted on the front of the heat-insulating compartment (3); a control box (58) is fixedly mounted on the bottom of the support frame (57) and the front of the heat-insulating compartment (3); a drive assembly (59) is provided inside the control box (58); and a connector (60) for connecting to a circular cover (52) is provided inside the support frame (57).

3. The automatic ventilation structure of a refrigerated vehicle according to claim 1, characterized in that: The automobile chassis (2) is fixedly connected to the refrigerated vehicle head (1), the heat-insulating compartment (3) is fixedly mounted on the automobile chassis (2), and the ventilation tunnel (4) is fixedly mounted inside the heat-insulating compartment (3) and one end thereof passes through and extends to the outside of the heat-insulating compartment (3).

4. The automatic ventilation structure of a refrigerated vehicle according to claim 1, characterized in that: The guide assembly (55) includes two guide rods, one end of each of the two guide rods is fixedly connected to two arc-shaped clamping plates (53), and two connecting holes are provided on the circular cover (52). One end of the guide rod passes through the connecting holes and extends to the outside of the circular cover (52).

5. The automatic ventilation structure of a refrigerated vehicle according to claim 1, characterized in that: The feeding assembly (56) includes two electric push rods and two mounting frames, the two mounting frames are fixedly mounted on the top and bottom of the circular cover (52) respectively, the two electric push rods are fixedly mounted on the mounting frames, one end of the electric push rod passes through and extends to the inside of the circular cover (52), and the telescopic end of the electric push rod is fixedly connected to the arc-shaped clamping plate (53).

6. The automatic ventilation structure of a refrigerated vehicle according to claim 2, characterized in that: The control box (58) includes a mounting box and a timing sensor, wherein the timing sensor is fixedly mounted on one side of the mounting box, and the mounting box is fixedly mounted on the front side of the heat-insulating compartment (3).

7. The automatic ventilation structure of a refrigerated vehicle according to claim 2, characterized in that: The drive assembly (59) includes a connecting rod and an asynchronous motor, wherein the asynchronous motor is fixedly mounted inside the control box (58), the connecting rod is rotatably mounted inside the support frame (57) and one end thereof passes through and extends into the interior of the control box (58), the output shaft of the asynchronous motor is fixedly connected to one end of the connecting rod via a coupling, and the connecting member (60) is fixedly mounted on the outer surface of the connecting rod and the circular cover (52).

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