Fresh air exchange mechanism of fruit and vegetable refrigerated container

Abstract

The utility model relates to the technical field of fresh air exchange, in particular to a fresh air exchange mechanism of a fruit and vegetable refrigerated container, which comprises an inner mounting plate and an outer mounting plate, and is characterized in that one side, far away from the outer mounting plate, of the inner mounting plate is fixedly connected with a sealing cover; air inlets and air outlets are formed in the side faces of the inner mounting plate, the outer mounting plate and the sealing cover, air inlet pipes are fixedly mounted at the positions, corresponding to the air inlets and the air outlets, between the inner mounting plate and the outer mounting plate, and air exhaust pipes are fixedly mounted at the positions, corresponding to the air outlets, between the inner mounting plate and the outer mounting plate; and a sealing plate is movably connected into the sealing cover. The sealing device has the advantages that the sealing plate is driven by the steering engine to rotate, so that the two through holes in the sealing plate are completely aligned with or partially aligned with or completely staggered with the air inlet and the air outlet respectively, the purpose of adjusting the air inlet and exchange amount is achieved, a worker does not need to climb to the refrigerated container for adjustment, operation is facilitated, and the purposes of saving time and labor are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air exchange, in particular to a fresh air exchange mechanism for a fruit and vegetable refrigerated container. Background Art

[0002] Refrigerated containers are usually used for the transportation of fruits and vegetables to prevent them from spoiling during transportation. To keep fruits and vegetables fresh in refrigerated containers, fresh air exchange structures are required.

[0003] At present, the fresh air exchange method for refrigerated containers is: a hole is opened on the wall of the refrigerated container at the evaporator, and then a mechanism with two vents is made and embedded on it. The mechanism has a movable baffle. When the fresh air mechanism is closed, the baffle blocks the two air outlets. The baffle is manually adjusted to adjust the size of the air inlet and the air outlet, thereby adjusting the air exchange rate in the container.

[0004] However, the current fresh air exchange mechanism of the refrigerated container controls the size of the air outlet by manually operating the air outlet baffle to achieve the purpose of controlling the amount of incoming air, so the ventilation operation is inconvenient. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0006] To this end, one purpose of the utility model is to provide a fresh air exchange mechanism for a fruit and vegetable refrigerated container, aiming to solve the problem of inconvenient ventilation operation of the fresh air exchange mechanism for the refrigerated container in the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a fresh air exchange mechanism for a fruit and vegetable refrigerated container, comprising an inner mounting plate and an outer mounting plate, characterized in that a sealing cover is fixedly connected to a side of the inner mounting plate away from the outer mounting plate, and the sides of the inner mounting plate, the outer mounting plate and the sealing cover are all provided with air inlets and air outlets, an air inlet pipe is fixedly installed at a position corresponding to the air inlet and the air outlet between the inner mounting plate and the outer mounting plate, an exhaust pipe is fixedly installed at a position corresponding to the air outlet between the inner mounting plate and the outer mounting plate, a sealing plate is movably connected inside the sealing cover, a steering gear is fixedly installed on the outside of the sealing cover, the output end of the steering gear is fixedly connected to the sealing plate, two through holes are provided on the side of the sealing plate, and an elbow is fixedly installed at a position corresponding to the air inlet on the outside of the sealing cover.

[0008] Preferably, any of the above schemes has a fan fixedly installed on the outer side of the sealing cover at a position corresponding to the air outlet, which can assist in rapid exhaust of air in the initial stage of refrigeration, thereby accelerating the efficiency of fresh air exchange.

[0009] Preferably, any of the above schemes has plugs fixedly connected to both ends of the air inlet duct and the exhaust duct, and the air inlet duct is respectively plugged with the air inlets of the inner mounting plate and the outer mounting plate through the plugs arranged at both ends, and the exhaust duct is respectively plugged with the air outlets of the inner mounting plate and the outer mounting plate through the plugs arranged at both ends, which facilitates the positioning of the air inlet duct and the exhaust duct, thereby facilitating assembly.

[0010] Preferably, any of the above schemes is that the air inlet and the air outlet of the external mounting plate are both connected with a limiting ring, the outer surface of the limiting ring is fixedly connected with a positioning plate, the inner wall of the limiting ring is fixedly connected with a filter, one side of the positioning plate is fixedly connected with a hemispherical cover, and an air outlet is opened at the bottom of the hemispherical cover to achieve the purpose of preventing insects, foreign objects and rain.

[0011] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0012] 1. The sealing plate is driven to rotate by the steering gear so that the two through holes on the sealing plate are completely aligned, partially aligned, or completely staggered with the air inlet and the air outlet, respectively, so as to achieve the purpose of adjusting the amount of ventilation air. Therefore, there is no need to manually climb onto the refrigerated container for adjustment, which facilitates the operation and achieves the purpose of saving time and effort.

[0013] 2. The fan can accelerate the discharge of air in the refrigerated container to the outside through the exhaust duct. After loading fruits and vegetables into the refrigerated container, the fan can be used to speed up the discharge of air in the refrigerated container, thereby achieving the purpose of accelerating the efficiency of fresh air exchange.

[0014] 3. The air inlet and outlet ducts are inserted into the air inlet and outlet on the inner mounting plate through plugs to achieve preliminary positioning. When the outer mounting plate is fixed to the outer wall of the refrigerated container, the air inlet and outlet on the outer mounting plate are sleeved on the plug surface at the end of the air inlet and outlet ducts. The air inlet and exhaust ducts do not need to be welded or bolted to the inner mounting plate and the outer mounting plate, thereby making it easier to fix the air inlet and exhaust ducts.

[0015] 4. By fixing the limit ring in the air inlet and outlet of the outer mounting plate, the filter in the limit ring can prevent flying insects or foreign objects from entering the air inlet or exhaust duct, thereby playing a filtering role. In addition, a hemispherical cover is fixed on the positioning plate on the outer surface of the limit ring, and the air outlet is opened under the hemispherical cover to prevent rainwater from entering, thereby achieving the purpose of rain protection.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram according to the utility model.

[0019] Figure 2 It is a schematic diagram of the structure decomposed according to the utility model.

[0020] Figure 3 It is a structural schematic diagram of the sealing cover, the sealing plate and the inner mounting plate according to the utility model.

[0021] Figure 4 It is a structural schematic diagram of a hemispherical cover according to the utility model.

[0022] Among them: 1. inner mounting plate, 2. outer mounting plate, 3. air inlet pipe, 31. exhaust pipe, 32. plug, 4. sealing cover, 41. servo, 42. groove, 43. connecting hole, 44. elbow, 45. fan, 5. sealing plate, 51. through hole, 6. limit ring, 61. positioning plate, 62. filter, 63. hemispherical cover, 64. air outlet. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a fresh air exchange mechanism for a fruit and vegetable refrigerated container.

[0026] Embodiment 1:

[0027] like Figure 1-3As shown, it includes an inner mounting plate 1 and an outer mounting plate 2, and is characterized in that a sealing cover 4 is fixedly connected to the side of the inner mounting plate 1 away from the outer mounting plate 2, and the sides of the inner mounting plate 1, the outer mounting plate 2 and the sealing cover 4 are all provided with air inlets and air outlets, an air inlet pipe 3 is fixedly installed at a position corresponding to the air inlet and the air outlet between the inner mounting plate 1 and the outer mounting plate 2, an exhaust pipe 31 is fixedly installed at a position corresponding to the air outlet between the inner mounting plate 1 and the outer mounting plate 2, a sealing plate 5 is movably connected inside the sealing cover 4, a steering gear 41 is fixedly installed on the outside of the sealing cover 4, an output end of the steering gear 41 is fixedly connected to the sealing plate 5, and the steering gear 41 can drive the sealing plate 5 to move in the sealing cover 4, two through holes 51 are provided on the side of the sealing plate 5, and the two through holes 51 correspond to the air inlet and the air outlet on the inner mounting plate 1 and the sealing cover 4 respectively. By rotating the sealing plate 5 by the steering gear 41, the two through holes 51 can correspond to or stagger the air inlet and the air outlet on the inner mounting plate 1 and the sealing cover 4, so as to achieve the purpose of adjusting the size of the air inlet and the air outlet. An elbow 44 is fixedly installed at the position corresponding to the air inlet on the outer side of the sealing cover 4, and the elbow 44 is connected to the fan of the cold machine evaporator through a pipeline, so that the cold machine evaporator can suck the fresh air from the outside into the cold machine evaporator through the pipeline and the elbow 44, and enter the interior of the refrigerated container after mixing with the cold air.

[0028] Preferably, a fan 453 is fixedly installed on the outer side of the sealing cover 4 at a position corresponding to the air outlet. When the fan 13 is started, the air in the refrigerated container can be discharged to the outside through the exhaust pipe 4 at an accelerated speed. After the fruits and vegetables are loaded into the refrigerated container, the exhaust of the air in the refrigerated container can be accelerated through the cooperation of the fan 13, thereby achieving the purpose of accelerating the fresh air exchange efficiency.

[0029] Specifically, Figure 3 As shown, a groove 42 is formed on one side of the sealing cover 4 close to the inner mounting plate 1 , and the sealing plate 5 is movably connected in the groove 42 . The groove 42 is used to accommodate the sealing plate 5 , and the sealing plate 5 can move in the groove 42 .

[0030] Specifically, Figure 2-3 As shown, a connection hole 43 is opened on one side of the sealing cover 4, and the output end of the steering gear 41 passes through the connection hole 43 to the groove 42 and is fixedly connected to the sealing plate 5, so that the steering gear 41 can drive the sealing plate 5 to rotate in the groove 42 of the sealing cover 4.

[0031] Embodiment 2:

[0032] like Figure 2As shown, on the basis of Example 1, both ends of the air inlet duct 3 and the air outlet duct 31 are fixedly connected with plugs 32, and the air inlet duct 3 is respectively plugged with the air inlets of the inner mounting plate 1 and the outer mounting plate 2 through the plugs 32 arranged at both ends thereof, and the air outlet duct 31 is respectively plugged with the air outlets of the inner mounting plate 1 and the outer mounting plate 2 through the plugs 32 arranged at both ends thereof. After the inner mounting plate 1 is fixed to the inner wall of the refrigerated container, the air inlet duct 3 and the air outlet duct 31 can be inserted into the air inlet and the air outlet on the inner mounting plate 1 through the plugs 32 to achieve preliminary positioning, and when the outer mounting plate 2 is fixed to the outer wall of the refrigerated container, the air inlet and the air outlet on the outer mounting plate 2 can be sleeved on the surfaces of the plugs 32 at the ends of the air inlet duct 3 and the air outlet duct 31, and the air inlet duct 3 and the exhaust duct 31 do not need to be welded or bolted to the inner mounting plate 1 and the outer mounting plate 2, thereby making it easier to fix the air inlet duct 3 and the exhaust duct 31.

[0033] Embodiment three:

[0034] like Figure 2 and Figure 4 As shown, on the basis of Example 1 or Example 2, the air inlet and the air outlet of the outer mounting plate 2 are both plugged with a limit ring 6, the outer surface of the limit ring 6 is fixedly connected with a positioning plate 61, and the inner wall of the limit ring 6 is fixedly connected with a filter screen 62, which can prevent flying insects or foreign objects from entering the air inlet pipe 3 or the exhaust pipe 4, thereby playing a filtering role. A hemispherical cover 63 is fixedly connected to one side of the positioning plate 61, and an air outlet 64 is opened at the bottom of the hemispherical cover 63. The air outlet 64 is used for air circulation, and the air outlet 64 is located at the bottom, which can prevent rainwater from entering and achieve the purpose of rain protection.

[0035] The working principle of the utility model is as follows: when in use, a hole matching the inner mounting plate 1 and the outer mounting plate 2 is opened on the box wall in front of the refrigerated container, and the hole penetrates into the interior of the refrigerated container, and then the inner mounting plate 1 is fixed to the inner wall of the refrigerated container by screws or welding, and then the air inlet pipe 3 and the exhaust pipe 31 are inserted into the hole from the outside of the refrigerated container, and the air inlet pipe 3 and the exhaust pipe 31 are respectively inserted into the air inlet and the air outlet of the inner mounting plate 1, and then the air inlet and the air outlet on the outer mounting plate 2 are aligned with the plugs 32 at the ends of the air inlet pipe 3 and the exhaust pipe 31 and inserted, and finally the outer mounting plate 2 is fixed to the outer wall of the refrigerated container by screws or welding. When adjusting the air intake and exhaust volumes, the steering gear 41 is started to drive the sealing plate 5 to rotate, so that the two through holes on the sealing plate 5 are completely aligned, partially aligned, or completely staggered with the air inlet and the air outlet, respectively, so as to achieve the purpose of adjusting the air intake and exhaust volumes.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. When adjusting the amount of ventilation air, the sealing plate 5 is driven to rotate by starting the steering gear 41 so that the two through holes on the sealing plate 5 are completely aligned, partially aligned, or completely staggered with the air inlet and the air outlet, respectively, so as to achieve the purpose of adjusting the amount of ventilation air. Therefore, there is no need to manually climb onto the refrigerated container to adjust it, which facilitates the operation and achieves the purpose of saving time and effort.

[0038] 2. By setting up the fan 45 and starting the fan 45, the air in the refrigerated container can be discharged to the outside through the exhaust pipe 31 at an accelerated speed. After the fruits and vegetables are loaded into the refrigerated container, the exhaust of the air in the refrigerated container can be accelerated through the cooperation of the fan 45, thereby achieving the purpose of accelerating the fresh air exchange efficiency.

[0039] 3. After the inner mounting plate 1 is fixed to the inner wall of the refrigerated container, the air inlet pipe 3 and the air outlet pipe 31 can be inserted into the air inlet and the air outlet on the inner mounting plate 1 through the plug 32 to achieve preliminary positioning. When the outer mounting plate 2 is fixed to the outer wall of the refrigerated container, the air inlet and the air outlet on the outer mounting plate 2 can be sleeved on the surface of the plug 32 at the end of the air inlet pipe 3 and the air outlet pipe 31. The air inlet pipe 3 and the exhaust pipe 31 do not need to be fixed to the inner mounting plate 1 and the outer mounting plate 2 by welding or bolts, so that the fixing of the air inlet pipe 3 and the exhaust pipe 31 is simpler.

[0040] 4. By fixing the limit ring 6 in the air inlet and outlet of the outer mounting plate 2, the filter 62 in the limit ring 6 can prevent flying insects or foreign objects from entering the air inlet pipe 3 or the air outlet pipe 31, thereby playing a filtering role. In addition, a hemispherical cover 63 is fixed on the positioning plate 61 on the outer surface of the limit ring 6, and the air outlet 64 is opened below the hemispherical cover 63, which can prevent rainwater from entering and achieve the purpose of rain protection.

Claims

1. A fresh air exchange mechanism for a fruit and vegetable refrigerated container, comprising an inner mounting plate (1) and an outer mounting plate (2), characterized in that: A sealing cover (4) is fixedly connected to the side of the inner mounting plate (1) away from the outer mounting plate (2); the sides of the inner mounting plate (1), the outer mounting plate (2) and the sealing cover (4) are all provided with air inlets and air outlets; an air inlet pipe (3) is fixedly installed at a position corresponding to the air inlet and the air outlet between the inner mounting plate (1) and the outer mounting plate (2); an exhaust pipe (31) is fixedly installed at a position corresponding to the air outlet between the inner mounting plate (1) and the outer mounting plate (2); a sealing plate (5) is movably connected inside the sealing cover (4); a steering gear (41) is fixedly installed outside the sealing cover (4); an output end of the steering gear (41) is fixedly connected to the sealing plate (5); two through holes (51) are provided on the side of the sealing plate (5); and an elbow (44) is fixedly installed at a position corresponding to the air inlet on the outside of the sealing cover (4).

2. The fresh air exchange mechanism for the fruit and vegetable refrigerated container according to claim 1 is characterized in that: A fan (45) is fixedly installed on the outer side of the sealing cover (4) at a position corresponding to the air outlet.

3. The fresh air exchange mechanism for the fruit and vegetable refrigerated container according to claim 1 is characterized in that: Both ends of the air inlet pipe (3) and the air exhaust pipe (31) are fixedly connected with plugs (32); the air inlet pipe (3) is plugged into the air inlets of the inner mounting plate (1) and the outer mounting plate (2) respectively through the plugs (32) arranged at both ends; and the air exhaust pipe (31) is plugged into the air outlets of the inner mounting plate (1) and the outer mounting plate (2) respectively through the plugs (32) arranged at both ends.

4. The fresh air exchange mechanism for the fruit and vegetable refrigerated container according to claim 1, characterized in that: A groove (42) is provided on one side of the sealing cover (4) close to the inner mounting plate (1), and the sealing plate (5) is movably connected in the groove (42).

5. The fresh air exchange mechanism for the fruit and vegetable refrigerated container according to claim 4, characterized in that: A connection hole (43) is provided on one side of the sealing cover (4), and the output end of the steering gear (41) passes through the connection hole (43) into the groove (42) and is fixedly connected to the sealing plate (5).

6. The fresh air exchange mechanism for the fruit and vegetable refrigerated container according to claim 1, characterized in that: The air inlet and the air outlet of the outer mounting plate (2) are both plugged with a limit ring (6), the outer surface of the limit ring (6) is fixedly connected to a positioning plate (61), and the inner wall of the limit ring (6) is fixedly connected to a filter screen (62).

7. The fresh air exchange mechanism for the fruit and vegetable refrigerated container according to claim 6, characterized in that: A hemispherical cover (63) is fixedly connected to one side of the positioning plate (61), and an air outlet (64) is provided below the hemispherical cover (63).

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