Sealing door plate and lifting door for drying oven

Abstract

The sealing door plate and lifting door comprises a door plate body, the door plate body is of a rectangular flat plate structure, and an annular groove used for installing a sealing rubber strip is formed in the periphery of one face of the door plate body; the sealing rubber strip is of an annular structure and comprises a mounting part embedded in the annular groove and a sealing part which is connected with the mounting part and protrudes out of the door plate main body; and the sealing pressing strip is of an annular structure and is connected with the door plate main body, and the mounting part is tightly pressed in the annular groove. The sealing rubber strip is divided into a mounting part embedded in the annular groove and a sealing part used for sealing the door plate body and the door body frame. The sealing rubber strip is prevented from being broken at a narrow position, the service life of the sealing rubber strip is prolonged, and the equipment failure rate is reduced. And the door plate main body is provided with the sealing pressing strip for pressing the mounting part in the annular groove, so that the sealing pressing strip can be conveniently connected with the door plate main body, and the sealing rubber strip can be quickly mounted and replaced.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery baking equipment, and in particular to a sealing door panel and a lifting door for an oven. Background Art

[0002] Moisture has a great impact on the performance of lithium batteries, including voltage, self-discharge and other indicators. Excessive moisture content will lead to product scrapping, reduced quality, and even product explosion in severe cases. Therefore, in the production process of lithium batteries, the positive and negative electrodes and batteries must be vacuum baked to remove as much moisture as possible. The oven, as a vacuum baking device, can dry lithium batteries during the production process.

[0003] In the related art, the oven door structure plays a very important role in the sealing of the oven. The sealing ring used in the oven door of the traditional oven is not very durable, resulting in a high equipment failure rate, frequent damage to the sealing ring, high maintenance costs, and fatigue of maintenance personnel. In addition, due to the heavy weight of the oven door structure, the risk factor is increased, and the deformation of the stress deformation surface of the sealing ring is narrow. After frequent stress, the probability of extrusion and breakage is high, resulting in a loose seal after the oven door is closed. The loose sealing of the oven door will have a great negative impact on the performance of the oven and affect the quality of the products in the oven. Summary of the invention

[0004] The embodiments of the present application provide a sealing door panel and a lifting door for an oven, so as to solve the problem that the sealing ring used in the oven door structure of the related art is not durable and is not easy to repair and replace.

[0005] A first aspect of an embodiment of the present application provides a sealing door panel for an oven, comprising:

[0006] The door panel body is a rectangular flat plate structure, and an annular groove for installing a sealing strip is provided around one side of the door panel body;

[0007] A sealing strip, the sealing strip is an annular structure, comprising a mounting portion embedded in the annular groove, and a sealing portion connected to the mounting portion and protruding from the door panel body;

[0008] The sealing strip is an annular structure connected to the door panel body and presses the mounting portion tightly into the annular groove.

[0009] In some embodiments: a connecting portion is provided between the mounting portion and the sealing portion, and the mounting portion, the connecting portion and the sealing portion are connected to each other to form a sealing strip with an I-shaped cross section;

[0010] A side of the annular groove opposite to the sealing strip is provided with an annular flange connected to the door panel body;

[0011] One side of the sealing strip is provided with a first groove for embedding the annular flange, and the other side of the sealing strip is provided with a second groove for embedding the sealing strip.

[0012] In some embodiments: the sealing strip includes a plurality of straight strips and a plurality of "L"-shaped strips, and the plurality of straight strips and the plurality of "L"-shaped strips are spliced end to end to form a "mouth"-shaped structure;

[0013] The plurality of straight strips and the plurality of "L"-shaped strips are all detachably connected to the door panel main body by screws, and threaded blind holes for screw connection are provided on the door panel main body.

[0014] In some embodiments: the cross-section of the sealing part is an isosceles trapezoid structure, one end of the sealing part away from the installation part is a sealing contact surface, and the slopes on both sides of the sealing part are force-deforming surfaces;

[0015] The connection between the force-deforming surface and the sealing contact surface is smoothly transitioned by a fillet, and a lubricating grease is coated on the force-deforming surface and the sealing contact surface.

[0016] The second aspect of the embodiments of the present application provides a lifting door for an oven, including:

[0017] A door frame, the door frame is a rectangular structure with a hollow interior and a closed perimeter, and an access opening is provided on the door frame and runs through the front and rear ends;

[0018] A lifting mechanism, the lifting mechanism includes a lifting plate slidably connected within the door frame, and a driving mechanism for driving the lifting plate to move up and down within the door frame;

[0019] The sealing door panels described in any of the above embodiments are symmetrically provided on both sides of the lifting plate, and the sealing door panels are slidably connected to the door frame to close the access opening.

[0020] In some embodiments: the door frame includes two door frame plates that are parallel and spaced apart from each other, the access opening is located on the two door frame plates and below the door frame plates, and side sealing plates located on both sides of the door frame plates, a top sealing plate located at the top of the door frame plates, and a bottom sealing plate located at the bottom of the door frame plates are connected between the two door frame plates.

[0021] In some embodiments: maintenance openings are provided on both of the two door frame plates, the maintenance openings are located above the access opening, cover plates for closing the maintenance openings are connected to both of the two door frame plates, the cover plates are connected to the door frame plates by screws, and a sealing ring is connected between the cover plates and the door frame plates.

[0022] In some embodiments: Vertical linear guide rails fixed within the door frame are provided on both sides of the lifting plate. A linear bearing is slidably connected to the vertical linear guide rails, and the linear bearing is slidably connected to the vertical linear guide rails.

[0023] The drive mechanism includes a drive motor fixed to the top of the door frame. The output shaft of the drive motor is connected to a lead screw. A nut threadedly connected to the lead screw is fixedly connected to the lifting plate. The lead screw and the nut convert the rotational motion of the drive motor into the linear motion of the lifting plate.

[0024] In some embodiments: The sealing door panels located on the front and back of the lifting plate are parallel to and spaced apart from the lifting plate. The sealing door panels and the lifting plate are movably connected to each other by tension springs.

[0025] On one side of the door panel body of the sealing door panel away from the sealing strip, a first pulley set is provided. On the front and back of the lifting plate, second pulley sets slidably connected to the first pulley set and driving the sealing door panels on both sides of the lifting plate to move away from each other are provided.

[0026] In some embodiments: The first pulley set is located below the second pulley set. The first pulley set includes a pulley bracket. A pulley arranged horizontally is rotatably connected to the pulley bracket through a pin shaft. The first pulley set and the second pulley set have the same structure and are frictionally connected to each other through pulley rolling.

[0027] The beneficial effects brought by the technical solution provided in this application include:

[0028] The embodiments of this application provide a sealing door panel and a lifting door for an oven. Since the sealing door panel for the oven in this application is provided with a door panel body, the door panel body is a rectangular flat plate structure. A circular groove for installing a sealing strip is opened around the periphery of one side of the door panel body; a sealing strip, the sealing strip is a circular structure, including an installation part embedded in the circular groove, and a sealing part connected to the installation part and protruding from the door panel body; a sealing press strip, the sealing press strip is a circular structure and is connected to the door panel body, and presses the installation part in the circular groove.

[0029] Therefore, an annular groove for installing a sealing strip is provided around the perimeter of one side of the door panel body of the sealing door panel of the present application, and this annular groove provides an installation and positioning space for the sealing strip. The sealing strip is of an annular structure and is divided into an installation part embedded in the annular groove and a sealing part for sealing the door panel body and the door frame with each other. The sealing strip avoids the risk of breaking at narrow places, improves the service life of the sealing strip, and reduces the failure rate of the equipment. A sealing pressing strip for pressing the installation part in the annular groove is provided on the door panel body, and the sealing pressing strip is of an annular structure, which facilitates the connection between the sealing pressing strip and the door panel body and thus enables the quick installation and replacement of the sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 Schematic diagram of the front structure of the sealing door panel according to an embodiment of the present application;

[0032] Figure 2 Schematic diagram of the back structure of the sealing door panel according to an embodiment of the present application;

[0033] Figure 3 Schematic diagram of the vertical cross-section of the sealing door panel according to an embodiment of the present application;

[0034] Figure 4 For Figure 3 Partial enlarged schematic diagram at A in

[0035] Figure 5 Front view of the structure of the door panel body and the sealing pressing strip according to an embodiment of the present application;

[0036] Figure 6 Schematic diagram of the vertical cross-section of the door panel body and the sealing pressing strip according to an embodiment of the present application;

[0037] Figure 7 For Figure 6 Partial enlarged schematic diagram at B in

[0038] Figure 8 Cross-sectional schematic diagram of the sealing strip according to an embodiment of the present application;

[0039] Figure 9 Schematic diagram of the structure of the lifting door according to an embodiment of the present application;

[0040] Figure 10 Schematic diagram of the structure of the door frame according to an embodiment of the present application;

[0041] Figure 11 Schematic structural diagram of the lifting mechanism and the sealing door panel according to an embodiment of the present application;

[0042] Figure 12 Schematic structural diagram of the lifting plate according to an embodiment of the present application;

[0043] Figure 13 Schematic structural diagram of the first pulley set according to an embodiment of the present application.

[0044] Reference numerals:

[0045] 100, sealing door panel; 110, door panel main body; 111, annular groove; 112, annular flange; 120, sealing rubber strip; 121, mounting portion; 122, sealing portion; 123, connecting portion; 124, first groove; 125, second groove; 126, sealing contact surface; 127, force-deformed surface; 130, sealing pressure strip; 131, linear pressure strip; 132, "L"-shaped pressure strip; 140, first pulley set; 141, pulley bracket; 142, pin shaft; 143, pulley;

[0046] 200, lifting door; 210, door body frame; 211, access door opening; 212, door frame plate; 213, side sealing plate; 214, top sealing plate; 215, bottom sealing plate; 216, maintenance door opening; 217, sealing ring; 218, cover plate; 220, lifting mechanism; 221, lifting plate; 222, vertical linear guide rail; 223, linear bearing; 224, driving motor; 225, lead screw; 226, nut; 227, second pulley set; 228, connecting block. Detailed implementation manners

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0048] The embodiments of the present application provide a sealing door panel and a lifting door for an oven, which can solve the problems in the related art that the sealing ring used in the oven door structure has poor durability and is not convenient for maintenance and replacement.

[0049] See Figures 1 to 8 As shown, in the first aspect of the embodiments of the present application, a sealing door panel for an oven is provided. The sealing door panel 100 includes:

[0050] The door panel main body 110 is a rectangular flat plate structure. An annular groove 111 for installing a sealing strip 120 is provided around the front of the door panel main body 110. The annular groove 111 has the same distance from the edge position of the door panel main body 110.

[0051] The sealing strip 120 is an annular structure. The sealing strip 120 includes an installation part 121 embedded in the annular groove 111 and a sealing part 122 connected to the installation part 121 and protruding from the door panel main body 110.

[0052] The sealing strip 130 has multiple sections. The multiple sections of the sealing strip 130 are spliced end to end to form an annular structure and are connected to the door panel main body 110, and the installation part 121 is pressed tightly in the annular groove 111.

[0053] In the sealing door panel 100 for an oven according to the embodiment of the present application, an annular groove 111 for installing a sealing strip 120 is provided around one side of the door panel main body 110. The annular groove 111 provides an installation and positioning space for the sealing strip 120.

[0054] The sealing strip 120 is an annular structure and is divided into an installation part 121 embedded in the annular groove 111 and a sealing part 122 for sealing the door panel main body 110 and the door frame 210 from each other. The sealing strip 120 avoids the risk of breaking at the narrow part, improves the service life of the sealing strip 120, and reduces the equipment failure rate.

[0055] A sealing strip 130 for pressing the installation part 121 tightly in the annular groove 111 is provided on the door panel main body 110. The sealing strip 130 is an annular structure, which is convenient for the sealing strip 130 to be connected to the door panel main body 110 and thus the sealing strip 120 can be installed and replaced quickly.

[0056] In some alternative embodiments: Refer to Figure 4 、 Figure 7 and Figure 8 As shown in, the embodiment of the application provides a sealing door panel for an oven. A connecting part 123 is provided between the installation part 121 and the sealing part 122 of the sealing door panel 100. The installation part 121, the connecting part 123 and the sealing part 122 are connected to each other to form a sealing strip 120 with a cross-section in the shape of an "I" structure.

[0057] An annular flange 112 connected to the door panel main body 110 is provided on one side of the annular groove 111 opposite to the sealing strip 130; a first groove 124 for embedding the annular flange 112 is provided on one side of the sealing strip 120, and a second groove 125 for embedding the sealing strip 130 is provided on the other side of the sealing strip 120.

[0058] In some alternative embodiments: Refer toFigure 1 , Figure 5 and Figure 7 As shown in Figure 1 , Figure 5 , and Figure 7 , the application embodiment provides a sealing door panel for an oven. The sealing strip 130 of the sealing door panel 100 includes four straight strips 131 and four "L"-shaped strips 132. The four straight strips 131 and the four "L"-shaped strips 132 are spliced end to end to form a "mouth"-shaped structure.

[0059] The four straight strips 131 and the four "L"-shaped strips 132 are both detachably connected to the door panel main body 110 by screws, and threaded blind holes for screw connection are provided on the door panel main body 110. The two ends of the "L"-shaped strip 132 are used to splice two mutually perpendicular straight strips 131, and the "L"-shaped strip 132 makes the sealing strip 120 have an arc transition at the four corners of the door panel main body 110.

[0060] The four straight strips 131 and the four "L"-shaped strips 132 are embedded in the second groove 125 of the sealing strip 120 and then fixedly connected to the door panel main body 110 by screws, thereby pressing and fixing the sealing strip 120 in the annular groove 111 of the door panel main body 110.

[0061] In some alternative embodiments: Referring to Figure 8 As shown in Figure 8 , the application embodiment provides a sealing door panel for an oven. The cross-section of the sealing part 122 of the sealing door panel 100 is an isosceles trapezoid structure. One end of the sealing part 122 away from the installation part 121 is a sealing contact surface 126, and the slopes on both sides of the sealing part 122 are force-bearing deformation surfaces 127.

[0062] The connection between the force-bearing deformation surface 127 and the sealing contact surface 126 is smoothly transitioned by a fillet. A lubricating grease is coated on the force-bearing deformation surface 127 and the sealing contact surface 126. The lubricating grease improves the anti-wear ability of the force-bearing deformation surface 127 and the sealing contact surface 126. When the sealing part 122 is pressed, the force-bearing deformation surface 127 and the sealing contact surface 126 deform and are hermetically connected to the surface to be sealed.

[0063] Referring to Figures 9 to 11 As shown in Figures 9 to 11 , the second aspect of the application embodiment provides a lifting door for an oven. The lifting door 200 is installed at the inlet and outlet of the oven, or in different temperature zones inside the oven. The lifting door 200 includes:

[0064] A door body frame 210, which is a rectangular structure with a hollow interior and a closed perimeter. An access opening 211 running through the front and rear ends is provided on the door body frame; the door body frame 210 provides an installation space and a fixed support for the lifting mechanism 220 and the sealing door panel 100, and the access opening 211 of the door body frame 210 is used for inputting or outputting the lithium batteries to be baked.

[0065] Lifting mechanism 220, which includes a lifting plate 221 slidably connected within the door frame 210, and a driving mechanism for driving the lifting plate 221 to move up and down within the door frame 210. On both sides of the lifting plate 221, the sealing door panels 100 described in any of the above embodiments are symmetrically provided, and the sealing door panels 100 are slidably connected to the door frame 210 to close the access opening 211.

[0066] In the embodiment of the present application, a sealing door panel 100 for closing the access opening 211 is provided within the door frame 210, and the sealing strip 120 of the sealing door panel 100 is slidably and sealingly connected to the door frame 210. The lifting mechanism 220 is connected to the door frame 210 to drive the sealing door panel 100 to move up and down, thereby opening or closing the access opening 211 with the sealing door panel 100.

[0067] In some alternative embodiments: Refer to Figure 9 and Figure 10 As shown, the embodiment of the present application provides a lifting door for an oven. The door frame 210 of the lifting door 200 includes two door frame plates 212 that are parallel to each other and spaced apart. The access opening 211 is located on the two door frame plates 212 and below the door frame plates 212.

[0068] Between the two door frame plates 212, side sealing plates 213 located on both sides of the door frame plates 212, a top sealing plate 214 located at the top of the door frame plates 212, and a bottom sealing plate 215 located at the bottom of the door frame plates 212 are connected. The side sealing plates 213, the top sealing plate 214, and the bottom sealing plate 215 are all located between the two door frame plates 212 and are sealingly connected to each other.

[0069] Maintenance openings 216 are provided on both of the two door frame plates 212. The maintenance openings 216 are located above the access opening 211. On both of the two door frame plates 212, cover plates 218 for closing the maintenance openings 216 are connected. The cover plates 218 are connected to the door frame plates 212 by screws, and a sealing ring 217 is connected between the cover plates 218 and the door frame plates 212.

[0070] An installation space for the lifting plate 221 and two sets of sealing door panels 100 is formed between the two door frame plates 212 of the embodiment of the present application. The sealing strips 120 on the front sides of the two sets of sealing door panels 100 are respectively slidably and sealingly connected to the inner surfaces of the two door frame plates 212. The maintenance openings 216 provided on the two door frame plates 212 are used for maintaining or repairing the lifting mechanism 220.

[0071] In some alternative embodiments: Refer to Figure 9 、 Figure 11 and Figure 12As shown in the figure, an embodiment of the present application provides a lifting door for an oven. Vertical linear guide rails 222 fixed within a door frame 210 are provided on both sides of a lifting plate 221 of the lifting door 200. A linear bearing 223 is slidably connected to the vertical linear guide rail 222, and the linear bearing 223 is slidably connected to the vertical linear guide rail 222.

[0072] The driving mechanism includes a driving motor 224 fixed to the top of the door frame 210. An output shaft of the driving motor 224 is connected to a lead screw 225. A nut 226 threadedly connected to the lead screw 225 is fixedly connected to the lifting plate 221. The lead screw 225 and the nut 226 convert the rotational motion of the driving motor 224 into a linear motion of the lifting plate 221 in the height direction along the vertical linear guide rail 222.

[0073] There are two lifting plates 221, and the two lifting plates 221 are symmetrically and spaced apart with the lead screw 225 as the central axis. The two lifting plates 221 are fixedly connected by a connecting block 228. A through hole for inserting the lead screw 225 is provided on the connecting block 228, so that the lifting plate 221 does not interfere with the lead screw 225 in position during the up and down movement.

[0074] In some alternative embodiments: Refer to Figure 2 、 Figures 9 to 13 As shown in the figure, an embodiment of the present application provides a lifting door for an oven. Sealing door panels 100 located on the front and back of the lifting plate 221 of the lifting door 200 are parallel and spaced apart from the lifting plate 221.

[0075] The sealing door panel 100 and the lifting plate 221 are movably connected to each other by a tension spring. The tension spring can not only enable the sealing door panel 100 to follow the lifting and lowering movement of the lifting plate 221, but also enable the sealing door panel 100 to move closer to or away from the lifting plate 221 in the horizontal direction.

[0076] On a side of a door panel main body 110 of the sealing door panel 100 away from a sealing strip 120, a plurality of first pulley groups 140 are provided. Second pulley groups 227 that are slidably connected to the first pulley groups 140 and drive the sealing door panels 100 on both sides of the lifting plate 221 to move away from each other are provided on the front and back of the lifting plate 221.

[0077] The first pulley group 140 is located below the second pulley group 227. The first pulley group 140 includes a pulley bracket 141, and a pulley 143 arranged in a horizontal direction is rotatably connected to the pulley bracket 141 through a pin shaft 142. The first pulley group 140 and the second pulley group 227 have the same structure and are connected by rolling friction through the pulley 143.

[0078] When the sealing door panel 100 descends to the set position to complete the blocking of the access opening 211, the lifting plate 221 drives the second pulley sets 227 located on the front and back of the lifting plate 221 to continue descending a set stroke. At this time, the pulleys 143 on the second pulley sets 227 and the pulleys 143 on the first pulley set 140 are squeezed and roll against each other, so that the sealing door panels 100 on both sides of the lifting plate 221 move away from each other.

[0079] When the two groups of sealing door panels 100 move away from each other respectively, the sealing rubber strips 120 on the two groups of sealing door panels 100 are squeezed and sealed to the inner surfaces of the two door frame plates 212 respectively, thereby realizing the mutual sealing between the sealing door panel 100 and the door body frame 210, and improving the airtightness and heat preservation performance.

[0080] Working principle

[0081] The embodiment of the present application provides a sealing door panel and a lifting door for an oven. Since the sealing door panel 100 for the oven of the present application is provided with a door panel main body 110, the door panel main body 110 is a rectangular flat plate structure, and an annular groove 111 for installing a sealing rubber strip 120 is opened around one side of the door panel main body 110; a sealing rubber strip 120, the sealing rubber strip 120 is an annular structure, including an installation part 121 embedded in the annular groove 111, and a sealing part 122 connected to the installation part 121 and protruding from the door panel main body 110; a sealing strip 130, the sealing strip 130 is an annular structure and is connected to the door panel main body 110, and presses the installation part 121 in the annular groove 111.

[0082] Therefore, the sealing door panel 100 for the oven of the present application is provided with an annular groove 111 for installing the sealing rubber strip 120 around one side of the door panel main body 110, and the annular groove 111 provides an installation and positioning space for the sealing rubber strip 120. The sealing rubber strip 120 is an annular structure, and is divided into an installation part 121 embedded in the annular groove 111 and a sealing part 122 for mutually sealing the door panel main body 110 and the door body frame 210. The sealing rubber strip 120 avoids the risk of breakage at narrow places, improves the service life of the sealing rubber strip, and reduces the equipment failure rate. A sealing strip 130 for pressing the installation part 121 in the annular groove 111 is provided on the door panel main body 110. The sealing strip 130 is an annular structure, which is convenient for the connection between the sealing strip 130 and the door panel main body 110, and thus the sealing rubber strip 120 can be quickly installed and replaced.

[0083] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0084] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0085] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A sealed door panel for an oven, characterized in that, Comprising: A door panel main body (110), the door panel main body (110) being a rectangular flat plate structure, and an annular groove (111) for installing a sealing strip (120) being provided around the periphery of one side of the door panel main body (110); A sealing strip (120), the sealing strip (120) being an annular structure, including a mounting portion (121) embedded in the annular groove (111), and a sealing portion (122) connected to the mounting portion (121) and protruding from the door panel main body (110); A sealing pressing strip (130), the sealing pressing strip (130) being an annular structure and connected to the door panel main body (110), and pressing the mounting portion (121) tightly in the annular groove (111).

2. A sealing door panel for an oven according to claim 1, wherein: A connecting portion (123) is provided between the mounting portion (121) and the sealing portion (122), and the mounting portion (121), the connecting portion (123) and the sealing portion (122) are connected to each other to form a sealing strip (120) with a cross-section in an "I" shape structure; An annular flange (112) connected to the door panel main body (110) is provided on one side of the annular groove (111) opposite to the sealing pressing strip (130); A first groove (124) for embedding the annular flange (112) is provided on one side of the sealing strip (120), and a second groove (125) for embedding the sealing pressing strip (130) is provided on the other side of the sealing strip (120).

3. A sealing door panel for an oven according to claim 1 or 2, wherein: The sealing pressing strip (130) includes a plurality of straight pressing strips (131) and a plurality of "L" shaped pressing strips (132), and the plurality of straight pressing strips (131) and the plurality of "L" shaped pressing strips (132) are spliced end to end to form a "square" shaped structure; The plurality of straight pressing strips (131) and the plurality of "L" shaped pressing strips (132) are all detachably connected to the door panel main body (110) by screws, and threaded blind holes for screw connection are provided on the door panel main body (110).

4. A sealing door panel for an oven according to claim 1 or 2, wherein: The cross-section of the sealing portion (122) is an isosceles trapezoid structure, one end of the sealing portion (122) away from the mounting portion (121) is a sealing contact surface (126), and the slopes on both sides of the sealing portion (122) are force-deformation surfaces (127); The connection between the force-deformation surface (127) and the sealing contact surface (126) is smoothly transitioned by a fillet, and a lubricating grease is coated on the force-deformation surface (127) and the sealing contact surface (126).

5. A lifting door for an oven, characterized in that, Comprising: A door body frame (210), the door body frame (210) being a rectangular structure with a hollow interior and closed all around, and an access hole (211) penetrating through the front and rear ends being provided on the door body frame (210); Lifting mechanism (220), the lifting mechanism (220) includes a lifting plate (221) slidably connected within the door frame (210), and a driving mechanism for driving the lifting plate (221) to move up and down within the door frame (210); On both sides of the lifting plate (221), there are symmetrically arranged sealing door panels (100) described in any one of claims 1 to 4. The sealing door panels (100) are slidably connected to the door frame (210) to close the access opening (211).

6. A lifting door for an oven as claimed in claim 5, wherein: The door frame (210) includes two door frame plates (212) arranged parallel and spaced apart from each other. The access opening (211) is located on the two door frame plates (212) and below the door frame plates (212). Between the two door frame plates (212), there are side sealing plates (213) located on both sides of the door frame plates (212), a top sealing plate (214) located at the top of the door frame plates (212), and a bottom sealing plate (215) located at the bottom of the door frame plates (212).

7. A lifting door for an oven as claimed in claim 6, wherein: On both of the two door frame plates (212), there are inspection openings (216) provided. The inspection openings (216) are located above the access opening (211). On both of the two door frame plates (212), there are cover plates (218) for closing the inspection openings (216). The cover plates (218) are connected to the door frame plates (212) by screws, and a sealing ring (217) is connected between the cover plates (218) and the door frame plates (212).

8. A lifting door for an oven as claimed in claim 6, wherein: On both sides of the lifting plate (221), there are vertical linear guide rails (222) fixed within the door frame (210). A linear bearing (223) is slidably connected to the vertical linear guide rails (222), and the linear bearing (223) is slidably connected to the vertical linear guide rails (222); The driving mechanism includes a driving motor (224) fixed at the top of the door frame (210). The output shaft of the driving motor (224) is connected to a lead screw (225). A nut (226) threadedly connected to the lead screw (225) is fixedly connected to the lifting plate (221). The lead screw (225) and the nut (226) convert the rotational motion of the driving motor (224) into the linear motion of the lifting plate (221).

9. A lifting door for an oven as claimed in claim 6, wherein: The sealing door panels (100) located on the front and back of the lifting plate (221) are parallel and spaced apart from the lifting plate (221). The sealing door panels (100) and the lifting plate (221) are movably connected to each other by tension springs; On one side of the door panel body (110) of the sealed door panel (100) away from the sealing strip (120), a first pulley set (140) is provided. On both the front and back of the lifting plate (221), a second pulley set (227) is provided which is slidably connected to the first pulley set (140) and drives the sealed door panels (100) on both sides of the lifting plate (221) to move in a mutually away direction.

10. The lifting door for an oven according to claim 9, wherein: The first pulley set (140) is located below the second pulley set (227). The first pulley set (140) includes a pulley bracket (141). A pulley (143) arranged in a horizontal direction is rotatably connected to the pulley bracket (141) through a pin shaft (142). The first pulley set (140) and the second pulley set (227) have the same structure and are connected by rolling friction through the pulley (143).

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