A three-eccentric sealing structure for thermal insulation cabinet

Abstract

The utility model discloses a three-eccentric sealing structure for a thermal insulation cabinet, comprising a thermal insulation cabinet, wherein fixing plates are fixed to the top and bottom of one front side of the thermal insulation cabinet, a cabinet door is rotatably installed between the fixing plates via a rotating shaft, the thermal insulation cabinet and the cabinet door are connected to each other via a door lock, the thermal insulation cabinet uses a three-eccentric sealing structure, gas can be transported into the interior of an inner cavity through an air pump and a stainless steel pipe, so that a rubber seal becomes thicker, ensuring that when the cabinet door cooperates with the thermal insulation cabinet to squeeze the rubber seal, the rubber seal can be deformed, so that the sealing area of ​​the rubber seal is increased, and the sealing of the connection between the thermal insulation cabinet and the cabinet door is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cabinet door and cabinet body sealing, in particular to a three-eccentric sealing structure for a thermal insulation cabinet body. Background Art

[0002] The thermal insulation cabinet is made of thermal insulation materials. The thermal insulation cabinet consists of a cabinet body and a cabinet door. In order to increase the sealing between the cabinet body and the cabinet door, a sealing rubber part will be arranged between the cabinet body and the cabinet door. Since the cabinet door can be rotated, the cabinet door rotates to squeeze the sealing rubber part, causing it to deform and achieve a better sealing effect. The purpose of three-eccentric sealing is achieved by rotating and squeezing the rubber part.

[0003] However, the sealing rubber parts on the three-eccentric sealing structure of the existing thermal insulation cabinet will become thinner after being squeezed for a long time, resulting in a deterioration in the effect between the cabinet body and the cabinet door. The sealing rubber parts need to be replaced to solve the problem of deteriorated sealing between the cabinet body and the cabinet door, which leads to a waste of sealing rubber parts, and it is also time-consuming and labor-intensive to replace the newer sealing rubber parts.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original three-eccentric sealing structure of the thermal insulation cabinet. Utility Model Content

[0005] The utility model aims to provide a three-eccentric sealing structure for a heat-insulating cabinet to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-eccentric sealing structure for a heat-insulating cabinet, comprising a heat-insulating cabinet, the top and bottom of the front side of the heat-insulating cabinet are fixed with fixing plates, a cabinet door is rotatably installed between the fixing plates through a rotating shaft, and the heat-insulating cabinet and the cabinet door are connected to each other through a door lock;

[0007] A rubber seal is attached to the rear side of the cabinet door, and the rear side of the rubber seal is attached to the front side of the heat-insulating cabinet body. An inner cavity is provided inside the rubber seal, and a stainless steel pipe is fixed inside the inner cavity. A sealing cover is installed inside the end of the stainless steel pipe that passes through a through hole, and the through hole is provided on the cabinet door;

[0008] The rubber sealing member and the cabinet door are connected via a snap-fit ​​mechanism.

[0009] Preferably, the engaging mechanism comprises a limiting groove and a limiting rod, a limiting rod is fixed to the front side of the rubber seal, and the limiting rod is located inside the limiting groove.

[0010] Preferably, the limiting rods are distributed at equal intervals on the front side of the rubber seal, and the limiting rods are engaged and connected with the limiting grooves, and the limiting rods are made of rubber.

[0011] Preferably, a one-way valve is installed inside the stainless steel pipe.

[0012] Preferably, a supporting base is fixed to the bottom of the thermal insulation cabinet.

[0013] Preferably, the outer side of the stainless steel tube and the inner side of the through hole are in contact with each other, and the end of the stainless steel tube is threadedly connected to the sealing cover, and the end of the sealing cover is in contact with the outer side of the cabinet door.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the thermal insulation cabinet adopts a three-eccentric sealing structure, and gas can be delivered to the inner cavity through an air pump and a stainless steel pipe, so that the rubber seal becomes thicker, ensuring that when the cabinet door cooperates with the thermal insulation cabinet to squeeze the rubber seal, the rubber seal can be deformed, so that the sealing area of ​​the rubber seal is increased, and the sealing performance of the connection between the thermal insulation cabinet and the cabinet door is improved;

[0015] After the rubber seal becomes thinner due to use, it can be thickened again by using an air pump and a stainless steel tube, so that the rubber seal can continue to be used, reducing the replacement cost. At the same time, there is no need to replace it, avoiding the time-consuming and labor-intensive manual work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the distribution structure of the limit rod on the rubber seal of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0019] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0021] Figure 6 This is a schematic diagram of the front cross-sectional structure of the rubber seal of the utility model.

[0022] In the figure: 1. thermal insulation cabinet; 2. fixing plate; 3. rotating shaft; 4. cabinet door; 5. rubber seal; 6. inner cavity; 7. stainless steel pipe; 8. through hole; 9. sealing cover; 10. one-way valve; 11. limit groove; 12. limit rod; 13. door lock; 14. supporting base. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a three-eccentric sealing structure for a heat-insulating cabinet, comprising a heat-insulating cabinet 1, a fixing plate 2 is fixed to the top and bottom of the front side of the heat-insulating cabinet 1, a cabinet door 4 is rotatably installed between the fixing plates 2 through a rotating shaft 3, and the heat-insulating cabinet 1 and the cabinet door 4 are connected to each other through a door lock 13;

[0025] A rubber seal 5 is attached to the rear side of the cabinet door 4, and the rear side of the rubber seal 5 is attached to the front side of the thermal insulation cabinet 1. An inner cavity 6 is provided inside the rubber seal 5, and a stainless steel tube 7 is fixed inside the inner cavity 6. The end of the stainless steel tube 7 and the rubber seal 5 can be melt-connected, and gas can be injected into the inner cavity 6 through the stainless steel tube 7, so that the rubber seal 5 becomes thicker, thereby improving the sealing effect of the rubber seal 5 on the thermal insulation cabinet 1 and the cabinet door 4. The end of the stainless steel tube 7 passes through the through hole 8 and a sealing cover 9 is installed inside. The through hole 8 is provided on the cabinet door 4, and the outer side of the stainless steel tube 7 is attached to the inner side of the through hole 8, so that the stainless steel tube 7 can be pulled out from the inside of the through hole 8, so that the rubber seal 5 can be removed from the cabinet door 4, so that the rubber seal 5 can be replaced, and the end of the stainless steel tube 7 is threadedly connected to the sealing cover 9, and the end of the sealing cover 9 is attached to the outer side of the cabinet door 4, so that the sealing cover 9 can be removed from the end of the stainless steel tube 7;

[0026] The rubber seal 5 and the cabinet door 4 are connected by a snap-fit ​​mechanism, which includes a limit groove 11 and a limit rod 12. The limit rod 12 is fixed to the front side of the rubber seal 5, and the limit rod 12 is located inside the limit groove 11. The limit rods 12 are evenly spaced on the front side of the rubber seal 5, and the limit rods 12 are snap-fitted to the limit groove 11. The limit rods 12 are made of rubber, so that the limit rods 12 can be stuck in the limit groove 11, and the limit rods 12 can also be taken out from the limit groove 11. The design of the interiors of several limit grooves 11 and the limit rods 12 is conducive to the installation of the rubber seal 5 on the cabinet door 4.

[0027] A one-way valve 10 is installed inside the stainless steel pipe 7. The design of the one-way valve 10 allows external gas to enter the inner cavity 6 through the stainless steel pipe 7, while the internal gas of the inner cavity 6 will not be discharged to the outside through the stainless steel pipe 7.

[0028] A support base 14 is fixed to the bottom of the thermal insulation cabinet 1 , and the support base 14 supports the thermal insulation cabinet 1 .

[0029] Working principle: When using the three-eccentric sealing structure for the heat-insulating cabinet, first use the key to open the door lock 13, so that the cabinet door 4 rotates in the opposite direction around the rotating shaft 3, so that the front of the heat-insulating cabinet 1 is opened, and then the sealing cover 9 is rotated. Since the sealing cover 9 and the stainless steel pipe 7 are threadedly connected, the sealing cover 9 is removed from the stainless steel pipe 7, and then an air pump is used to transport gas into the inner cavity 6 through the stainless steel pipe 7 to make the rubber seal 5 thicker. When the rubber seal 5 reaches an appropriate thickness, the sealing cover 9 is reinstalled on the end of the stainless steel pipe 7, and the one-way The design of the valve 10 ensures that the internal gas of the inner cavity 6 will not be discharged to the outside through the stainless steel pipe 7, which facilitates the delivery of gas to the inner cavity 6. By rotating the cabinet door 4 through the rotating shaft 3, the cabinet door 4 squeezes the rubber seal 5, causing the rubber seal 5 to deform, increasing the sealing area, and improving the sealing performance of the rubber seal 5 at the connection between the thermal insulation cabinet body 1 and the cabinet door 4. When the rubber seal 5 becomes thinner after long-term use, gas can continue to be injected into the rubber seal 5 to make the rubber seal 5 thicker, thereby ensuring the sealing performance of the connection between the thermal insulation cabinet body 1 and the cabinet door 4.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-eccentric sealing structure for a thermal insulation cabinet, comprising a thermal insulation cabinet (1), characterized in that: The top and bottom of the front side of the thermal insulation cabinet (1) are both fixed with fixing plates (2), a cabinet door (4) is rotatably mounted between the fixing plates (2) via a rotating shaft (3), and the thermal insulation cabinet (1) and the cabinet door (4) are connected to each other via a door lock (13); A rubber seal (5) is attached to the rear side of the cabinet door (4), and the rear side of the rubber seal (5) is attached to the front side of the heat-insulating cabinet body (1). An inner cavity (6) is provided inside the rubber seal (5), and a stainless steel pipe (7) is fixed inside the inner cavity (6). The end of the stainless steel pipe (7) passes through a through hole (8) and a sealing cover (9) is installed inside the through hole (8) provided on the cabinet door (4); The rubber sealing member (5) and the cabinet door (4) are connected via a snap-fit ​​mechanism.

2. The triple eccentric sealing structure for a thermal insulation cabinet according to claim 1, characterized in that: The engaging mechanism comprises a limiting groove (11) and a limiting rod (12); the limiting rod (12) is fixed to the front side of the rubber seal (5); and the limiting rod (12) is located inside the limiting groove (11).

3. The triple eccentric sealing structure for a thermal insulation cabinet according to claim 2, characterized in that: The limiting rods (12) are distributed at equal intervals on the front side of the rubber seal (5), and the limiting rods (12) are snap-fitted and connected to the limiting grooves (11). The limiting rods (12) are made of rubber.

4. The triple eccentric sealing structure for a thermal insulation cabinet according to claim 1, characterized in that: A one-way valve (10) is installed inside the stainless steel pipe (7).

5. The triple eccentric sealing structure for a thermal insulation cabinet according to claim 1, characterized in that: A supporting base (14) is fixed to the bottom of the thermal insulation cabinet (1).

6. The triple eccentric sealing structure for a thermal insulation cabinet according to claim 1, characterized in that: The outer side of the stainless steel tube (7) and the inner side of the through hole (8) are in contact with each other, and the end of the stainless steel tube (7) is threadedly connected to the sealing cover (9), and the end of the sealing cover (9) and the outer side of the cabinet door (4) are in contact with each other.

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