Novel refrigerator van door sealing structure

Abstract

A novel refrigerator compartment door sealing structure comprises a T-shaped sealing strip, a corner pressing strip and a straight pressing strip, the main body portion of the T-shaped sealing strip is fixed to the position, matched with a door frame, of a compartment door through rivets, a trapezoid sealing lip is integrally formed on the head portion of the T-shaped sealing strip, and the trapezoid sealing lip is tightly attached to the outer side of the compartment door and the outer side of the door frame. An inner rubber strip is integrally formed on the tail portion of the T-shaped sealing strip, the inner rubber strip wraps the inner corner of the compartment door and is tightly attached to the inner side of the compartment door, an inner pressing strip is arranged on the inner side of the compartment door and fixes the inner rubber strip to the compartment door through rivets, and a plurality of inverted-hook-shaped sealing lips are sequentially arranged on the main body portion of the T-shaped sealing strip from the outer side to the inner side of the compartment door. The innermost side of the main body part of the T-shaped sealing strip is provided with a bulge type sealing bulge; and the door frame is provided with a compartment door outer corner covered edge and a heat insulation strip. The compartment door is scientific in design, reasonable in structure, capable of enabling the compartment door to be opened and closed easily, good in sealing effect, capable of greatly reducing the conduction coefficient, good in heat preservation performance, capable of cooling the interior of a compartment fast and waterproof and cold leakage-proof.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerated vehicles, and in particular to a novel sealing structure for a refrigerated vehicle compartment door. Background Art

[0002] With the rapid development of the domestic cold chain logistics industry, refrigerated trucks, as the key transportation tools of cold chain logistics, have always maintained a large demand. In this environment, lightweight, efficient, energy-saving and environmentally friendly refrigerated trucks are becoming more and more popular. In order to ensure the sealing and heat insulation of the refrigerated truck compartment, it is usually necessary to design a sealing structure on the compartment door.

[0003] like Figure 1 As shown, the existing refrigerated vehicle compartment door sealing structure includes an I-shaped refrigerated vehicle sealing strip 1 and a compartment door edging 2, the corner strip 3 and the straight strip 4 fix the main body of the I-shaped refrigerated vehicle sealing strip 1 to the compartment door 6 and the door frame 7 through rivets 5, the compartment door edging 2 is fixed to the door frame 7 through self-tapping screws 8, and the main body of the I-shaped refrigerated vehicle sealing strip 1 is provided with a plurality of inverted hook-type sealing lips 13 from the outside to the inside of the compartment door 6, the head sealing lip of the I-shaped refrigerated vehicle sealing strip 1 is arranged on the outside of the compartment, close to the outside of the compartment door 6 and the door frame 7, and the tail sealing lip of the I-shaped refrigerated vehicle sealing strip 1 is arranged on the inside of the compartment, close to the inside of the compartment door 6, and each inverted hook-type sealing lip 13 is sealed by being squeezed with the compartment door edging 2 on the door frame 7 to produce deformation. This sealing structure is simple, but has the following disadvantages: (1) The I-shaped refrigerated truck sealing strip 1 is mainly sealed by the inverted hook-shaped sealing lip and the door edge 2 on the door frame 7 to produce deformation. When the compartment is closed, it is easy to form a negative pressure when opening the compartment door. The multiple inverted hook-shaped sealing lips roll back to produce resistance, which makes it more laborious to open the compartment door 6, and the customer experience is not good. (2) The length of each inverted hook-shaped sealing lip of the I-shaped refrigerated truck sealing strip 1 decreases from the outside to the inside. When the door gap is too large, the inner sealing lip cannot play a sealing role, which is easy to leak water and cold. (3) The tail sealing lip of the I-shaped refrigerated truck sealing strip 1 is also easy to separate from the inside of the compartment door, resulting in poor sealing effect.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0005] The purpose of the utility model is to provide a novel refrigerated compartment door sealing structure in view of the deficiencies in the prior art. The utility model has a scientific design and a reasonable structure, can make the compartment door easy to open and close, has a good sealing effect, greatly reduces the conduction coefficient, has good thermal insulation performance, can quickly cool down the compartment, and is waterproof and prevents cold leakage.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a new type of refrigerated compartment door sealing structure, including a T-shaped sealing strip, an angle pressure strip and a straight pressure strip, the main body of the T-shaped sealing strip is fixed to the matching position of the compartment door and the door frame by rivets, the head of the T-shaped sealing strip is located on the outside of the compartment door, the tail of the T-shaped sealing strip is located on the inside of the compartment door, the head of the T-shaped sealing strip is integrally formed with a trapezoidal sealing lip perpendicular to its main body, the trapezoidal sealing lip is closely attached to the outside of the compartment door and the door frame, the tail of the T-shaped sealing strip is integrally formed with the outside of the compartment door and the door frame, and the tail of the T-shaped sealing strip is integrally formed with the outside of the compartment door and the door frame. An inner rubber strip is formed perpendicular to its main body, which wraps the inner corner of the door and fits tightly against the inner side of the door. An inner pressure strip for pressing the inner rubber strip is arranged on the inner side of the door, and the inner pressure strip fixes the inner rubber strip to the door through rivets. The main body of the T-shaped sealing strip is provided with a number of inverted hook-type sealing lips from the outside to the inside of the door, and a bulge-type sealing protrusion is arranged on the innermost side of the main body of the T-shaped sealing strip. The door frame is provided with an outer corner edging of the door which is squeezed and matched with each inverted hook-type sealing lip and a heat insulation strip which fits tightly with the bulge-type sealing protrusion.

[0007] Based on the above, a trapezoidal protrusion with a heat insulation cavity is integrally formed on the heat insulation strip at a position corresponding to the bulge-type sealing protrusion, and the bulge-type sealing protrusion fits tightly with the trapezoidal protrusion.

[0008] Based on the above, the outer corner edging of the car door wraps the outer corner of the door frame, the outer side of the outer corner edging of the car door is close to the outer side of the door frame, the trapezoidal sealing lip is pressed against the outer side of the outer corner edging of the car door, and the inner side of the outer corner edging of the car door is close to the matching position of the door frame and the car door.

[0009] Based on the above, the insulation strip is L-shaped and wraps the inner corner of the door frame, the outer edge of the insulation strip overlaps with the inner edge of the outer corner edging of the door and presses tightly against the inner edge of the outer corner edging of the door, the outer edge of the insulation strip and the inner edge of the outer corner edging of the door are fixed to the door frame by self-tapping screws, and the inner edge of the insulation strip is close to the inner side of the door frame and is fixed to the door frame by rivets.

[0010] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model adopts a T-shaped sealing strip, and the corner pressure strip and the straight pressure strip are fixed to the matching position of the door and the door frame by rivets. The main body of the T-shaped sealing strip is sequentially provided with a plurality of inverted hook-shaped sealing lips from the outside to the inside of the door. The innermost side of the main body of the T-shaped sealing strip is provided with a bulge-shaped sealing protrusion. The door frame is provided with a door outer corner edge that is squeezed and matched with each inverted hook-shaped sealing lip and a bulge-shaped sealing protrusion. The invention discloses a heat-insulating strip which fits tightly together. Compared with the traditional I-shaped refrigerated truck sealing strip 1, the number of inverted hook-type sealing lips of the T-shaped sealing strip is reduced. When the compartment door is opened, the bulge-type sealing protrusion will not roll back, thereby reducing the resistance. In this way, the compartment door is easy to open and close. When the compartment door is closed, the bulge-type sealing protrusion can fit tightly together with the trapezoidal protrusion on the heat-insulating strip, thereby achieving good sealing effect and waterproof performance. Moreover, the trapezoidal protrusion on the heat-insulating strip has a heat-insulating cavity, which greatly reduces the conduction coefficient and has good thermal insulation performance, thereby enabling the compartment to cool down quickly and preventing cold leakage.

[0011] Among them, an inner pressure strip for pressing the inner rubber strip is provided on the inner side of the compartment door. The inner pressure strip fixes the inner rubber strip to the compartment door through rivets, and then firmly fixes the T-shaped sealing strip on the inner side of the compartment door, further improving the sealing effect.

[0012] To sum up, the utility model has a scientific design and a reasonable structure, can make the compartment door open and close easily, has a good sealing effect, greatly reduces the conduction coefficient, has good thermal insulation performance, can quickly cool down the compartment, and is waterproof and leak-proof. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a structural schematic diagram of an existing refrigerated compartment door sealing structure.

[0014] Figure 2 It is a structural schematic diagram of the utility model.

[0015] In the figure: 1. I-shaped sealing strip for refrigerated truck; 2. Door edging; 3. Corner molding; 4. Straight molding; 5. Rivet; 6. Door; 7. Door frame; 8. Self-tapping screws; 9. T-shaped sealing strip; 10. Trapezoidal sealing lip; 11. Inner rubber strip; 12. Inner molding; 13. Inverted hook-type sealing lip; 14. Bulge-type sealing protrusion; 15. Door outer corner edging; 16. Insulation strip; 17. Insulation cavity; 18. Trapezoidal protrusion. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0017] like Figure 2As shown, the new refrigerated compartment door sealing structure includes a T-shaped sealing strip 9, an angle pressure strip 3 and a straight pressure strip 4 fix the main body of the T-shaped sealing strip 9 to the matching position of the compartment door 6 and the door frame 7 through a rivet 5, the head of the T-shaped sealing strip 9 is located on the outer side of the compartment door 6, and the tail of the T-shaped sealing strip 9 is located on the inner side of the compartment door 6. The head of the T-shaped sealing strip 9 is integrally formed with a trapezoidal sealing lip 10 perpendicular to its main body, and the trapezoidal sealing lip 10 is closely attached to the outer sides of the compartment door 6 and the door frame 7. The tail of the T-shaped sealing strip 9 is integrally formed with an inner rubber strip 11 perpendicular to its main body. The inner rubber strip 11 wraps the inner corner of the door 6 and is close to the inner side of the door 6. The inner side of the door 6 is provided with an inner pressure strip 12 that presses the inner rubber strip 11. The inner pressure strip 12 fixes the inner rubber strip 11 to the door 6 through the rivet 5. The main body of the T-shaped sealing strip 9 is provided with two inverted hook-shaped sealing lips 13 from the outside to the inside of the door 6. The innermost side of the main body of the T-shaped sealing strip 9 is provided with a bulge-shaped sealing protrusion 14. The door frame 7 is provided with an outer corner edge 15 of the door that is pressed and matched with the two inverted hook-shaped sealing lips 13 and a heat insulation strip 16 that is closely fitted with the bulge-shaped sealing protrusion 14. Compared with the traditional I-shaped refrigerated truck sealing strip 1, the T-shaped sealing strip 9 has a reduced number of inverted hook-shaped sealing lips 13. When the door 6 is opened, the bulge-shaped sealing protrusion 14 will not roll back, reducing the resistance. In this way, the door 6 is easy to open and close. The inner pressure strip 12 can firmly fix the T-shaped sealing strip 9 on the inner side of the door 6, further improving the sealing effect.

[0018] A trapezoidal protrusion 18 with a heat-insulating cavity 17 is integrally formed on the heat-insulating strip 16 at a position corresponding to the bulge-type sealing protrusion 14. The bulge-type sealing protrusion 14 fits tightly against the trapezoidal protrusion 18. When the compartment door 6 is closed, the trapezoidal protrusion 18 can fit tightly against the bulge-type sealing protrusion 14, resulting in good sealing effect and good waterproof performance. Moreover, the provision of the heat-insulating cavity 17 greatly reduces the conduction coefficient and has good thermal insulation performance, which can quickly cool down the compartment and prevent cold leakage.

[0019] The outer corner edging 15 of the compartment door wraps the outer corner of the door frame 7, the outer side edge of the outer corner edging 15 of the compartment door is close to the outer side of the door frame 7, the trapezoidal sealing lip 10 is pressed against the outer side edge of the outer corner edging 15 of the compartment door, and the inner side edge of the outer corner edging 15 of the compartment door is close to the matching position of the door frame 7 and the compartment door 6.

[0020] The heat insulation strip 16 is L-shaped and wraps the inner corner of the door frame 7. The outer side of the heat insulation strip 16 overlaps with the inner side of the door outer corner edging 15 and presses against the inner side of the door outer corner edging 15. The outer side of the heat insulation strip 16 and the inner side of the door outer corner edging 15 are fixed to the door frame 7 by self-tapping screws 8, and the inner side of the heat insulation strip 16 is close to the inner side of the door frame 7 and fixed to the door frame 7 by rivets 5. The installation structure is compact and reasonable.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. The new refrigerated compartment door sealing structure is set at the joint between the compartment door and the door frame, and its characteristics are: The invention comprises a T-shaped sealing strip, an angle pressure strip and a straight pressure strip. The main body of the T-shaped sealing strip is fixed to the matching position of the door and the door frame by rivets. The head of the T-shaped sealing strip is located on the outside of the door, and the tail of the T-shaped sealing strip is located on the inside of the door. The head of the T-shaped sealing strip is integrally formed with a trapezoidal sealing lip perpendicular to the main body thereof. The trapezoidal sealing lip is closely attached to the outside of the door and the door frame. The tail of the T-shaped sealing strip is integrally formed with an inner rubber strip perpendicular to the main body thereof. It wraps the inner corner of the door and fits tightly against the inner side of the door. An inner pressure strip is arranged on the inner side of the door to press the inner rubber strip tightly. The inner pressure strip fixes the inner rubber strip on the door through rivets. The main body of the T-shaped sealing strip is provided with a number of inverted hook-type sealing lips from the outside to the inside of the door. A bulge-type sealing protrusion is arranged on the innermost side of the main body of the T-shaped sealing strip. The door frame is provided with an outer corner edging of the door which is squeezed and matched with each inverted hook-type sealing lip and a heat insulation strip which fits tightly with the bulge-type sealing protrusion.

2. The new refrigerated compartment door sealing structure according to claim 1 is characterized in that: A trapezoidal protrusion with a heat insulation cavity is integrally formed on the heat insulation strip at a position corresponding to the bulge-type sealing protrusion, and the bulge-type sealing protrusion is tightly fitted with the trapezoidal protrusion.

3. The new refrigerated compartment door sealing structure according to claim 1 is characterized in that: The outer corner edging of the compartment door wraps the outer corner of the door frame, the outer side of the outer corner edging of the compartment door is close to the outer side of the door frame, the trapezoidal sealing lip is pressed against the outer side of the outer corner edging of the compartment door, and the inner side of the outer corner edging of the compartment door is close to the matching position of the door frame and the compartment door.

4. The new refrigerated compartment door sealing structure according to claim 1 is characterized in that: The insulation strip is L-shaped and wraps the inner corner of the door frame, the outer edge of the insulation strip overlaps with the inner edge of the outer corner edging of the door and presses against the inner edge of the outer corner edging of the door, the outer edge of the insulation strip and the inner edge of the outer corner edging of the door are fixed to the door frame by self-tapping screws, and the inner edge of the insulation strip is close to the inner side of the door frame and is fixed to the door frame by rivets.

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