Sealing structure of heating door

Abstract

The utility model discloses a sealing structure of a heating door. The sealing structure comprises a main body with an opening, the two first extrusion parts and the two second extrusion parts are distributed on the main body at intervals along the periphery of the opening; the sealing door is arranged on the main body; the sealing part is arranged on the side, opposite to the opening, of the sealing door; when the sealing door rotates to the opening, the two first extrusion parts and the two second extrusion parts extrude the sealing part to enable the sealing door to seal the opening; the sealing part comprises a bearing block, a supporting base, a first deformation attaching piece, a second deformation attaching piece and a sealing film, when the sealing door rotates to the opening to seal the sealing door, the first extrusion part and the second extrusion part extrude the four edges of the sealing film on the first deformation attaching piece and the second deformation attaching piece to be extruded and sealed; and after the first deformation attaching piece and the second deformation attaching piece deform, the gap between the bearing block and the sealing door is filled and sealed, so that the opening is effectively sealed, the sealing effect is good, and the service life is long.

Description

Technical Field

[0001] The utility model relates to a sealing structure, in particular to a sealing structure used for a heating door. Background Art

[0002] The electronics, LCD panel and other industries require large-scale equipment such as high-temperature curing, baking, and drying furnaces. In these large-scale equipment, items need to be taken out and placed, so relevant heating door structures are designed.

[0003] The heating doors in these existing large-scale equipment mostly use a rotatable sealing door panel to seal the opening, and add sealing strips between the sealing door panel and the opening to increase its sealing performance. However, in actual use, it is found that since the sealing door panel needs to be opened and closed repeatedly, the sealing strip will fail over time, resulting in poor sealing. The outside air blends with the internal heat, which reduces the curing temperature and brings many inconveniences to actual use. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a sealing structure for a heating door, which has good sealing effect, long service life and low improvement cost.

[0005] In order to achieve the above object, the technical solution adopted by the utility model is: a sealing structure of a heating door, comprising:

[0006] A main body, wherein the main body has an opening;

[0007] A first extrusion component and a second extrusion component, wherein two of the first extrusion components and two of the second extrusion components are spaced apart and distributed on the main body along the periphery of the opening;

[0008] A sealing door is provided on the main body and can be rotated to the opening;

[0009] A sealing portion, arranged on a side of the sealing door opposite to the opening;

[0010] Wherein, when the sealing door rotates to the opening, the two first extrusion components and the two second extrusion components squeeze the sealing portion so that the sealing door seals the opening.

[0011] Furthermore, the length of the first extrusion component is longer than the length of the second extrusion component.

[0012] Furthermore, the sealing portion includes:

[0013] A bearing block is arranged in the inner recess of the sealing door, and gaps are left between the upper and lower ends and the left and right ends of the bearing block and the inner wall of the sealing door;

[0014] Support seats, two of which are arranged at the top and bottom of the bearing block;

[0015] A first deformable fitting member, wherein two of the first deformable fitting members are respectively arranged on the two support seats and are respectively located between the gaps at the upper and lower ends of the bearing block and the inner wall of the sealing door;

[0016] A second deformable fitting member, wherein two of the second deformable fitting members are arranged between the left and right gaps between the bearing block and the inner wall of the sealing door, wherein the two first deformable fitting members and the two second deformable fitting members are arranged in sequence and spaced apart from each other on the four sides of the opening;

[0017] A sealing film, arranged on a side of the bearing block opposite to the opening;

[0018] Among them, when the sealing door rotates to the opening, the two first extrusion components and the two second extrusion components first squeeze the four sides of the sealing film onto the two first deformable fittings and the two second deformable fittings to extrude and seal, and then the first deformable fitting is blocked by the support seat and then positioned, and finally the first extrusion component and the second extrusion component are deformed to fill the gaps at the upper and lower ends and the left and right ends of the supporting block and the sealing door and then seal.

[0019] Furthermore, the first deformable fitting component, the second deformable fitting component and the sealing film are all made of PI film.

[0020] Furthermore, the support seat is L-shaped, the bottom of the first deformable fitting is arranged on the support seat, and the other end is located at the side end of the support seat.

[0021] Furthermore, the first deformable fitting member and the second deformable fitting member are in the shape of hollow cylinders.

[0022] Furthermore, the second extrusion component is L-shaped.

[0023] Furthermore, a heat insulating sheet is provided at the center of the sealing film.

[0024] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0025] The sealing structure of the heating door of the utility model is provided with a first extrusion component and a second extrusion component around the opening, and a deformable sealing film, a first deformable fitting component and a second deformable fitting component are provided on the side of the sealing door opposite to the opening, so that when the sealing door is rotated to the opening to seal it, the first extrusion component and the second extrusion component squeeze the four sides of the sealing film onto the first deformable fitting component and the second deformable fitting component to extrude and seal, and then the first deformable fitting component and the second deformable fitting component are deformed to fill the gap between the bearing block and the sealing door to seal, thereby effectively sealing the opening, achieving a good sealing effect and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the structure when the first extrusion component, the second extrusion component, the opening and the sealing film are separated in one embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure in which the sealing door and the sealing part are connected in one embodiment of the utility model;

[0030] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure decomposition;

[0031] Figure 5 for Figure 3 The schematic diagram of the structure after the sealing door is omitted;

[0032] Figure 6 It is a side view of the first extrusion component in one embodiment of the utility model when the upper and lower ends of the sealing film are pressed onto the first deformable fitting member;

[0033] Among them: main body 1, first extrusion component 2, second extrusion component 3, sealing door 4, sealing part 5, opening 10, driving cylinder 30, rotating shaft 31, fixing bar 32, bearing block 50, supporting seat 51, first deformable fitting part 52, sealing film 53, heat insulation sheet 54, second deformable fitting part 55. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0035] The utility model provides a sealing structure for a heating door, so as to solve the problems in the prior art that the sealing effect of the heating door in large equipment is poor and the service life is short.

[0036] For ease of understanding, the specific process in the embodiments of the present application is described below. Figures 1 to 5 A sealing structure of a heating door in an embodiment of the present application comprises a main body 1, a first extrusion component 2, a second extrusion component 3, a sealing door 4 and a sealing portion 5; an opening 10 is opened on the main body 1; two of the first extrusion components 2 and two of the second extrusion components 3 are arranged on the main body 1 at intervals along the four sides of the opening 10; the sealing door 4 is arranged on the main body 1, and the sealing door 4 can be rotated to the opening 10; the sealing portion 5 is arranged on the side of the sealing door 4 opposite to the opening 10; when the sealing door 4 is rotated to the opening 10, the two first extrusion components 2 and the two second extrusion components 3 squeeze the sealing portion 5 to achieve the sealing of the opening 10 by the sealing door 4.

[0037] The utility model realizes sealing of the sealing door 4 to the opening 10 by squeezing the sealing part 5 through the two first squeezing parts 2 and the two second squeezing parts 3. Such sealing effect is good and the service life is long, avoiding the problem of failure of silicone sealing strips after long-term use.

[0038] based on Figure 1 In this embodiment, the opening 10 is in a long strip shape, and the first extrusion component 2 and the second extrusion component 3 are both arranged in an L shape with the main body 1, and the two first extrusion components 2 are arranged at the two long sides of the opening 10, and the two second extrusion components 3 are arranged at the two short sides of the opening 10, so that the length of the first extrusion component 2 is longer than the length of the second extrusion component 3.

[0039] based on Figures 2 to 6In this embodiment, the sealing portion 5 includes a bearing block 50, a supporting seat 51, a first deformable fitting member 52, a second deformable fitting member 55 and a sealing film 53; the bearing block 50 is arranged in the inner recess of the sealing door 4, and a recess is also provided on the side of the bearing block 50 relative to the inner recess, which reduces weight on the one hand and reduces costs on the other hand. At the same time, gaps are left between the upper and lower ends of the bearing block 50 and the upper and lower ends and the left and right ends of the inner wall of the sealing door 4.

[0040] The two support seats 51 are arranged at the top and bottom of the supporting block 50. The support seat 51 in this embodiment is L-shaped. The two first deformable fitting parts 52 are respectively installed on the two support seats 51 arranged upper and lower, and are located in the gaps at the upper and lower ends of the inner wall of the supporting block 50 and the sealing door 4; when installed, one side of the first deformable fitting part 52 is arranged relative to the side end of the support seat 51, so that when the first deformable fitting part 52 is squeezed, it can be blocked by the L-shaped support seat 51, thereby realizing the corresponding positioning and deformation in the gaps at the upper and lower ends of the inner wall of the supporting block 50 and the sealing door 4.

[0041] The two second deformable fittings 55 are arranged between the left and right end gaps between the supporting block 50 and the inner wall of the sealing door 4, and the two first deformable fittings 52 and the two second deformable fittings 55 are arranged in sequence and spaced apart on the four sides of the opening 10; in this way, the second deformable fittings 55 can be deformed and sealed at the same time as the first deformable fittings 52 under force.

[0042] The sealing film 53 is arranged on the side of the supporting block 50 opposite to the opening, and the four sides of the sealing film 53 are aligned with the four sides of the sealing door 4. In this way, when the sealing door 4 rotates and moves to the opening, the sealing film 53 will be contacted by the first extrusion component 2 and the second extrusion component 3 and then squeezed onto the corresponding first deformable fitting member 52 and the second deformable fitting member 55. After the first deformable fitting member 52 and the support seat are positioned, the first deformable fitting member 52 and the second deformable fitting member 55 are deformed to fill the surroundings of the supporting block 50 and the sealing door 4 and then seal them.

[0043] In actual operation, when the sealing door 4 rotates to the opening 10 for sealing, the two first extrusion components 2 first extrude the upper and lower ends of the sealing film 53 laterally until they are fitted onto the first deformable fitting member 52 and the second deformable fitting member 55. When the pressure continues to increase, the first deformable fitting member 52 is first limited by the side end of the support seat 51, and then the first deformable fitting member 52 and the second deformable fitting member 55 are deformed to fill the gap around the sealing door and the supporting block to seal, thereby achieving the sealing of the opening of the sealing door 4. This has a good sealing effect and a long service life.

[0044] Specifically, in the present embodiment, the materials of the first deformable fitting part 52, the second deformable fitting part 55 and the sealing film 53 are all PI film. PI film is the best performing thin-film insulating flexible material in the world, can produce flexible deformation well, and has excellent high and low temperature resistance, electrical insulation, adhesion, radiation resistance, medium resistance, and long service life.

[0045] In addition, the sealing door 4 in this embodiment is rotated by a driving mechanism, which includes two driving cylinders 30, a rotating shaft 31 and a fixed bar 32 relatively arranged on the main body 1; the two driving mechanisms drive the corresponding rotating shafts 31 to rotate, and the two rotating shafts 31 drive the sealing door 4 connected to the fixed bar 32 to perform rotational sealing at the opening.

[0046] based on Figure 5 In this embodiment, the first deformable fitting member 52 and the second deformable fitting member 55 are both hollow cylindrical. After the four parts are assembled, they form a hollow rectangular shape and are arranged around the opening. Specifically, the first deformable fitting member 52 and the second deformable fitting member 55 are both cylindrical shapes rolled up from a flat PI film, so that the sealing film 53 can better fit on the first deformable fitting member 52 and the second deformable fitting member 55 when squeezed and deformed. At the same time, the first deformable fitting member 52 is also sealed and connected to the side end of the support seat 51 after extrusion, ensuring a better final sealing effect.

[0047] In addition, a heat insulating sheet 54 is provided at the center of the sealing film 53. The provision of the heat insulating sheet 54 can further enhance the heat insulating effect and make the temperature inside the large equipment more stable.

[0048] The specific use process of this sealing structure is as follows:

[0049] In the initial state, the sealing door 4 is away from the opening 10. At this time, the relevant processed items can be placed into the corresponding large equipment through the opening. When the opening needs to be closed, the sealing door 4 is first driven to rotate to the opening by two driving cylinders 30. When rotated to a certain position, the two first extrusion components 2 and the two second extrusion components 3 contact the sealing film 53 to squeeze the four sides of the sealing film 53 onto the corresponding two first deformation fittings and two second deformation fittings.

[0050] When the driving cylinder continues to apply pressure, the sealing door continues to rotate and press toward the opening, and the first deformable fitting and the second deformable fitting will also be deformed under force. The first deformable fitting is in close contact with the support seat and is limited to form a deformation, filling the gaps between the upper and lower ends of the support block and the sealing door and then sealing. At the same time, since the second deformable fitting is connected to the first deformable fitting, the second deformable fitting is deformed at the same time, filling the gaps between the left and right ends of the support block and the sealing door and then sealing, thereby improving the overall sealing performance.

[0051] To sum up, the sealing structure of the heating door extrude and deform the sealing film 53, the first deformable fitting 52 and the second deformable fitting 55 made of PI film material through the first extrusion component 2 and the second extrusion component 3, so that the sealing door seals the four sides of the opening, has good sealing performance and long service life, and meets actual usage needs.

[0052] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sealing structure for a heating door, It is characterized in that include: A main body, wherein the main body has an opening; A first extrusion component and a second extrusion component, wherein two of the first extrusion components and two of the second extrusion components are spaced apart and distributed on the main body along the periphery of the opening; A sealing door is provided on the main body and can be rotated to the opening; A sealing portion, arranged on a side of the sealing door opposite to the opening; Wherein, when the sealing door rotates to the opening, the two first extrusion components and the two second extrusion components squeeze the sealing portion so that the sealing door seals the opening.

2. The sealing structure of the heating door according to claim 1, Features: The length of the first extrusion member is longer than the length of the second extrusion member.

3. The sealing structure of the heating door according to claim 1, It is characterized in that The sealing portion comprises: A bearing block is arranged in the inner recess of the sealing door, and gaps are left between the upper and lower ends and the left and right ends of the bearing block and the inner wall of the sealing door; Support seats, two of which are arranged at the top and bottom of the bearing block; A first deformable fitting member, wherein two of the first deformable fitting members are respectively arranged on the two support seats and are respectively located between the gaps at the upper and lower ends of the bearing block and the inner wall of the sealing door; A second deformable fitting member, wherein two of the second deformable fitting members are arranged between the left and right gaps between the bearing block and the inner wall of the sealing door, wherein the two first deformable fitting members and the two second deformable fitting members are arranged in sequence and spaced apart from each other on the four sides of the opening; A sealing film, arranged on a side of the bearing block opposite to the opening; Among them, when the sealing door rotates to the opening, the two first extrusion components and the two second extrusion components first squeeze the four sides of the sealing film onto the two first deformable fittings and the two second deformable fittings to extrude and seal, and then the first deformable fitting is blocked by the support seat and then positioned, and finally the first extrusion component and the second extrusion component are deformed to fill the gaps at the upper and lower ends and the left and right ends of the supporting block and the sealing door and then seal.

4. The sealing structure of the heating door according to claim 3, Features: The first deformable fitting part, the second deformable fitting part and the sealing film are all made of PI film.

5. The sealing structure of the heating door according to claim 3, Features: The support seat is in an L-shape, the bottom of the first deformable fitting is arranged on the support seat, and the other end is located at the side end of the support seat.

6. The sealing structure of the heating door according to claim 3, Features: The first deformable fitting member and the second deformable fitting member are in a hollow cylindrical shape.

7. The sealing structure of the heating door according to claim 1, Features: The second extrusion component is L-shaped.

8. The sealing structure of the heating door according to claim 3, Features: A heat insulation sheet is arranged at the center of the sealing film.

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