A fruit and vegetable refrigerating chamber

Abstract

The utility model relates to fruit and vegetable refrigeration technical field, concretely relates to a fruit and vegetable refrigeration chamber. The refrigeration chamber is rigidly connected with the concrete base top end through bottom embedded bolt, and the vertical magnetic attraction door sill is arranged at the junction of the refrigeration chamber side wall groove and the base, the guide rod is welded at the bottom end of the door sill and is sleeved with the compression spring, the spring pushes under normal circumstances to make the door sill keep the raised state, the door sill is pressed and moves down along the guide rod to form the horizontal passageway when the transport equipment passes, and is automatically reset after passing; the top surface of the two concrete support platforms symmetrically arranged behind the door groove is fixed with the refrigerating mechanism integral module through the high-strength shear bolt, the utility model completely exempts from the disassembly operation through the mechanical lifting door sill; the support platform bolt fixation guarantees the equipment anti-vibration stability; the door sill in the raised state provides the whole perimeter rigid support base surface for the door body sealing strip, and the whole solves the transport obstacle, equipment vibration and sealing failure problem synchronously through the pure mechanical structure.

Description

Technical Field

[0001] This utility model relates to the field of automotive sealing strip processing technology, and in particular to a fruit and vegetable cold storage compartment. Background Technology

[0002] ① Traditional cold storage compartments use a one-piece welded threshold structure. This integrated design creates a fixed floor protrusion, forcing transport equipment to forcibly cross the threshold. Frequent collisions not only deform the threshold edges but also affect the overall sealing performance of the door frame. Closing the door relies solely on manual pushing to compress the sealing strip. Over time, the sealing material undergoes permanent deformation, creating noticeable leakage gaps, especially at the threshold corners. The root of these problems lies in the inability of a rigid structure to balance transport convenience and sealing reliability.

[0003] ② To address the aforementioned issues, existing technologies employ two improvement schemes: one is to achieve completely unobstructed passage through a removable threshold design, and the other is to use a transition pad to create a temporary ramp at the threshold. Regarding sealing, the improved door utilizes a mechanical compression locking structure, with a linkage mechanism ensuring uniform compression force on the sealing strip. This design effectively improves transportation convenience while enhancing the stability of the sealing system.

[0004] ③ However, in practical applications, it was found that the detachable threshold requires multiple sets of bolts for fixing, making the disassembly and assembly process cumbersome and time-consuming; while the transition pad solution retains the fixed threshold, the ramp angle requires additional force when the transport equipment is mounted or dismounted, increasing operational intensity. The linkage transmission system of the compression locking mechanism is prone to inflexibility in low-temperature environments, and some hinged parts may experience jamming. More importantly, this mechanism requires regular lubrication and maintenance; otherwise, uneven stress on the various clamping points will occur, affecting the overall sealing effect. These new problems indicate that the existing improvement solutions still need further optimization in terms of operational convenience and environmental adaptability. Utility Model Content

[0005] The purpose of this utility model is to provide a cold storage room for fruits and vegetables, which solves the technical problems in the prior art, such as inconvenient disassembly and assembly of the threshold structure, complex maintenance of the sealing system, and poor reliability of the mechanical transmission mechanism under low temperature conditions.

[0006] To achieve the above objectives, this utility model provides a fruit and vegetable cold storage room. The cold storage room is fixedly installed on the top of a concrete base. A door groove is pre-set on one side of the cold storage room. Two supports are provided on the top of the concrete base adjacent to the cold storage room and behind the door groove. A refrigeration mechanism is installed on the supports by bolts. A threshold is inserted into the junction of the door groove and the concrete base through a pre-set hole. The threshold is made of a magnetic material and a guide rod is fixedly installed at its bottom. A spring is sleeved on the outside of the guide rod to allow the threshold to rise and fall.

[0007] The refrigerator compartment has a magnetic plate embedded in the door groove side, and a door is installed on the side of the refrigerator compartment adjacent to the magnetic plate via a hinge. The door has a handle on the outward-facing side.

[0008] An electromagnetic plate is embedded on the side of the door opposite to the handle, and a sealing strip is fixedly installed on the side of the door adjacent to the electromagnetic plate.

[0009] The electromagnetic plate is energized and magnetically fixed to the magnetic plate and the threshold, causing the sealing strip to elastically deform and form a seal. The inner wall and door of the refrigerator are covered with heat-insulating material.

[0010] The refrigeration mechanism includes an outdoor refrigeration unit, which is installed on the top of the support platform by bolts. The outdoor refrigeration unit has an air inlet on one side and an exhaust window on the side away from the air inlet.

[0011] The outdoor refrigeration unit is connected to multiple indoor refrigeration units via condenser pipes that pass through the refrigerator compartment. The indoor refrigeration units are mounted on the inner wall of the refrigerator compartment via brackets.

[0012] A condensate pipe is fixedly installed on one side of the indoor cooling unit, and the air outlet of the indoor cooling unit is horizontal, allowing the cold air to be discharged and settle naturally.

[0013] This utility model discloses a fruit and vegetable cold storage compartment. The bottom of the cold storage compartment and the top of the concrete base form a rigid connection. A door groove in the side wall of the cold storage compartment is connected to the concrete base with a vertical through hole. A threshold made of magnetic material is inserted into the through hole. A guide rod vertically welded to the bottom of the threshold is fitted with a compression spring, which keeps the threshold automatically raised and positioned when there is no external force. When a transport device passes over it, the threshold presses down vertically along the guide rod to compress the spring and form a horizontal passage. After the device passes, the spring automatically resets and pushes the threshold back to the preset height. Two supports symmetrically cast behind the door groove of the concrete base are fixed to the refrigeration mechanism by shear bolts, so that the refrigeration mechanism and the bottom of the cold storage compartment maintain a set installation distance. This basic structure simultaneously achieves three essential improvements: the mechanical self-resetting characteristic of the threshold completely eliminates the disassembly and assembly process of traditional detachable thresholds; the bolt fixing method of the supports ensures the long-term stability of the refrigeration equipment in a continuous vibration environment; and the normally raised threshold provides a uniform support base for the sealing system, thus laying the foundation for sealing reliability. All functions are realized through the interaction of pure mechanical structures, achieving a dual breakthrough in operational efficiency and equipment durability while maintaining the basic functions of the cold storage compartment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a rear view structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the refrigeration mechanism according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the threshold structure of an embodiment of this utility model.

[0019] Figure 5 This is an embodiment of the present utility model. Figure 1 An enlarged diagram of A in the diagram.

[0020] In the diagram: 101, Refrigeration compartment; 102, Concrete base; 103, Door groove; 104, Support; 105, Refrigeration mechanism; 106, Threshold; 107, Guide rod; 108, Spring; 109, Magnetic plate; 110, Door; 111, Handle; 112, Electromagnetic plate; 113, Sealing strip; 114, Outdoor refrigeration unit; 115, Air inlet window; 116, Exhaust window; 117, Indoor refrigeration unit; 118, Condensate pipe; 119, Air outlet. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figures 1-5 .

[0023] This utility model provides a fruit and vegetable cold storage room. The main frame of the cold storage room 101 is fixedly installed on the top of a concrete base 102 using pre-embedded bolts. A door groove 103 is pre-machined on one side of the main frame of the cold storage room 101, with a through hole at the groove for inserting a magnetically pleasing threshold 106. A guide rod 107 is welded to the bottom of the threshold 106 and fitted with a compression spring 108 to keep it in a raised position under normal conditions. Two symmetrical concrete supports 104 are poured on the top of the concrete base 102, adjacent to the main frame of the cold storage room 101 and located behind the door groove 103. A refrigeration outdoor unit 114 is fixedly installed on the top surface of each support 104 using high-strength bolts. A strip-shaped air inlet 115 is provided on one side of the refrigeration outdoor unit 114, and a louvered exhaust vent 116 is provided on the opposite side. A rectangular magnetic plate 109 is embedded in the facade of the main frame of the cold storage room 101 adjacent to the door groove 103. A double-layer insulated door 110 with a handle 111 is installed via hinges. An electromagnetic plate 112, aligned with the magnetic suction plate 109, is embedded inside the door 110, and an elastic sealing strip 113 is affixed to the perimeter. The outdoor refrigeration unit 114 passes through the side wall of the main frame of the cold storage room 101 via a copper condensing pipe and is connected to multiple indoor refrigeration units 117 fixed to the bracket. The air outlets 119 of each indoor refrigeration unit 117 are arranged in a horizontal strip and the bottom is welded with a condensate drain pipe. The inner wall of the main frame of the cold storage room 101 and the inner surface of the door 110 are entirely covered with a polyurethane insulation layer. Limiting bolt holes are provided on the contact surface between the threshold 106 and the concrete base 102. When the door 110 is closed, the electromagnetic plate 112 is energized to attract the magnetic suction plate 109 and the raised threshold 106 to form a triple fixation. When the cargo trolley passes through, the threshold 106 is pressed down until the bottom of the guide rod 107 contacts the preset bolt limiting point of the concrete base 102. All metal connectors in the entire structure are rust-proofed, and sealant is applied to the joints of the insulation layer.

[0024] Working principle: Under normal conditions, the threshold 106 remains raised under the support of the spring 108. When the door 110 is closed, the electromagnetic plate 112 on the inner side of the door 110 is energized to generate a magnetic attraction force. This magnetic attraction force directly attracts the magnetic plate 109 at the door frame of the refrigerator compartment 101 to form a main seal and fix it in place. At the same time, it attracts the threshold 106, which is already in the raised state, to strengthen its positioning. At this time, the raised state of the threshold 106 is completely maintained by the spring 108, and its top surface provides rigid support for the sealing strip 113, forcing the sealing strip 113 to produce uniform elastic deformation, forming an annular sealing barrier between the door 110, the door frame, and the threshold 106, effectively isolating the inner and outer rings. When the cargo trolley needs to enter or exit, the threshold 106 is pressed down, and its bottom guide rod 107 presses down the spring 108 along the preset slot to the bolt limit point, so that the top surface of the threshold 106 is flush with the concrete base 102, forming an unobstructed passage. This design maintains the conventional seal while taking into account the needs of equipment movement. The refrigeration process is driven by the refrigeration outdoor unit 114 on the support 104. The refrigeration outdoor unit 114 is equipped with a compressor, condenser and expansion valve. The compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure state. When it flows through the condenser, the external air drawn in through the air inlet 115 carries away the heat, and the refrigerant condenses into a normal-temperature, high-pressure liquid, which is then... The expansion valve throttles and reduces pressure to form a low-temperature, low-pressure mist-like mixture. This refrigerant is transported to the indoor unit 117 through a condensing pipe that runs through the refrigerator compartment 101. The indoor unit 117 is equipped with an evaporator coil and a circulating fan. When the low-temperature refrigerant enters the evaporator coil, it absorbs heat from the refrigerator compartment 101, and the liquid refrigerant evaporates into a gaseous state. At the same time, the circulating fan blows indoor air horizontally across the surface of the evaporator fins. The cooled air is evenly distributed from the horizontal air outlet 119. The horizontal air distribution design utilizes the natural settling characteristics of cold air to evenly diffuse the cold air from top to bottom into the fruit and vegetable storage area, avoiding localized overcooling that could cause frost damage. The indoor unit 117 simultaneously collects heat from the evaporator coil. Surface condensate is discharged outdoors through a dedicated pipe to maintain a dry environment. The inner wall of the cold storage compartment 101, which is fully covered with insulation material, works in conjunction with the door 110 to suppress cold loss and significantly reduce the energy consumption of the refrigeration system. When the door 110 is opened, the electromagnetic plate 112 is de-energized and demagnetized, and the threshold 106 maintains the independence of its lifting function under the restoring force of the spring 108, automatically returning to the sealed standby state. The entire system uses the mechanical spring 108 to lift the threshold 106 in combination with magnetic assisted fixation to achieve flexible switching between sealing and passage. With the horizontal settling refrigeration cycle, it ensures uniform and stable storage temperature for fruits and vegetables while improving equipment operating efficiency and structural durability.

[0025] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A fruit and vegetable cold storage compartment, comprising a cold storage compartment (101), characterized in that: The cold storage compartment (101) is fixedly installed on the top of the concrete base (102). A door groove (103) is pre-set on one side of the cold storage compartment (101). Two supports (104) are provided on the top of the concrete base (102) adjacent to the cold storage compartment (101) and behind the door groove (103). A refrigeration mechanism (105) is provided on the supports (104) by bolts. A threshold (106) is inserted into the junction of the door groove (103) and the concrete base (102) through a pre-set hole. The threshold (106) is made of magnetic material and a guide rod (107) is fixedly installed at the bottom. A spring (108) is sleeved on the outside of the guide rod (107) to make the threshold (106) rise and fall.

2. A fruit and vegetable cold storage compartment as described in claim 1, characterized in that: A magnetic plate (109) is embedded in the side of the refrigerator compartment (101) adjacent to the door groove (103). A door (110) is installed on the side of the refrigerator compartment (101) adjacent to the magnetic plate (109) via a hinge. A handle (111) is provided on the outward side of the door (110).

3. A fruit and vegetable cold storage compartment as described in claim 2, characterized in that: An electromagnetic plate (112) is embedded on the side opposite to the handle (111) of the door (110), and a sealing strip (113) is fixedly installed on the side of the door (110) adjacent to the electromagnetic plate (112).

4. A fruit and vegetable cold storage compartment as described in claim 3, characterized in that: The electromagnetic plate (112) is energized and magnetically fixed to the magnetic plate (109) and the threshold (106), so that the sealing strip (113) is elastically deformed to form a seal. The inner wall of the cold storage chamber (101) and the inside of the door (110) are covered with heat-insulating material.

5. A fruit and vegetable cold storage compartment as described in claim 1, characterized in that: The refrigeration mechanism (105) includes an outdoor refrigeration unit (114), which is installed on the top of the support (104) by bolts. An air inlet window (115) is provided on one side of the outdoor refrigeration unit (114), and an exhaust window (116) is provided on the side of the outdoor refrigeration unit (114) away from the air inlet window (115).

6. A fruit and vegetable cold storage compartment as described in claim 5, characterized in that: The outdoor refrigeration unit (114) is connected to multiple indoor refrigeration units (117) through a condensing pipe that passes through the cold storage room (101). The indoor refrigeration units (117) are installed on the inner wall of the cold storage room (101) by brackets.

7. A fruit and vegetable cold storage compartment as described in claim 6, characterized in that: A condensate pipe (118) is fixedly installed on one side of the indoor cooling unit (117), and the air outlet (119) of the indoor cooling unit (117) is horizontal, so that the cold air is discharged and settles naturally.

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