A sealed door structure and a vacuum oven having the same

Abstract

The utility model relates to the technical field of door structure especially is related to a sealing door structure and vacuum oven with the sealing door structure, it includes: the sealing door support is provided with sealing door body, and the sealing door support is connected with the sealing door body between the open and close door subassembly, and the upside and downside of sealing door support are provided with double track components, and double track components include outer rail, inner rail, moving slider and counterweight slider, and outer rail fixedly connected in sealing door support, and inner rail fixedly connected in vacuum oven, and moving slider and counterweight slider are all slidingly connected in inner rail, and moving slider and counterweight slider all with outer rail each other slidingly fit, and the first inner limit block and the second inner limit block are provided on inner rail, and moving slider is located between the first inner limit block and the second inner limit block, and counterweight slider is located between the inner rail end and the first inner limit block. The application can improve the contact pressure stability of door body and door frame, and can reduce the equipment installation space occupancy.

Description

Technical Field

[0001] This utility model relates to the technical field of door structures, and in particular to a sealing door structure and a vacuum oven having the sealing door structure. Background Technology

[0002] Vacuum ovens, as core equipment in the field of vacuum heat processing, are widely used in scenarios such as battery cell drying and high-temperature treatment. The sealing door structure of vacuum ovens needs to meet two core requirements: flexible opening and closing and reliable sealing. Especially in industrial workshops where multiple devices are arranged in parallel, the space occupation and shape coordination of the sealing door structure become key considerations in the design of vacuum oven equipment.

[0003] Currently, vacuum oven sealing door mechanisms employ a sliding door structure with upper and lower single-rail guides. For example, Chinese utility model patent CN209083178U discloses a sealing door device and a lithium battery cell oven with this sealing door device. This patent uses extended guide rail mounting brackets on both sides of the oven body, with sliding guide rails fixed on the brackets. The door moves by sliding through the cooperation of a slider and the guide rails. While this structure can meet basic opening and closing requirements, the extended brackets need to extend significantly to both sides of the oven body, causing the overall lateral dimension of the equipment to exceed the width of the internal working cavity, forming a noticeable protruding area. This affects the overall shape coordination of the equipment and requires more installation space, making it difficult to meet the needs of compact workshop layouts. In addition, the single-rail sliding door structure can only provide support on one side, and the door is prone to shaking and uneven force when sliding, opening, and closing. Furthermore, the contact pressure between the door and the door frame is unstable when the door is closed, affecting the sealing performance of the equipment. These issues urgently need to be addressed. Utility Model Content

[0004] To address the shortcomings of the prior art, this application provides a sealing door structure and a vacuum oven having the sealing door structure.

[0005] The above-mentioned inventive objective of this application is achieved through the following technical solutions: In a first aspect, this application provides a sealed door structure, including a sealed door bracket, which is provided with a sealed door body. An opening and closing door assembly is connected between the sealed door bracket and the sealed door body. A double track assembly is symmetrically arranged on the upper and lower sides of the sealed door bracket. The double track assembly includes an outer guide rail, an inner guide rail, a movable slider, and a counterweight slider. The outer guide rail is fixedly connected to the sealed door bracket, and the inner guide rail is fixedly connected to a vacuum oven. The movable slider and the counterweight slider are both slidably connected to the inner guide rail, and the movable slider and the counterweight slider are both slidably engaged with the outer guide rail. A first inner limit block and a second inner limit block are provided on the inner guide rail. The movable slider is located between the first inner limit block and the second inner limit block, and the counterweight slider is located between the end of the inner guide rail and the first inner limit block. The sealing door has an open position and a closed position on its moving path. When the sealing door moves closer to the open position, the moving slider moves closer to the counterweight slider. When the sealing door is in the open position, the moving slider abuts against the first inner limit block. When the sealed door moves closer to the closed position, the moving slider moves away from the counterweight slider, and when the sealed door is in the closed position, the moving slider abuts against the second inner limit block.

[0006] Preferably, an L-shaped push block is fixedly installed on the outer guide rail, a mating block is fixedly installed on the top of the movable slider, and an outer push block is fixedly installed at the end of the outer guide rail near the second inner limit block; When the sealed door moves closer to the closed position, the L-shaped push block is used to make way for the counterweight slider and abut against the mating block; When the sealed door moves closer to the open position, the outer push block is used to abut against the moving slider.

[0007] Preferably, an anti-detachment plate is fixedly connected to the end of the inner guide rail near the second inner limit block. When the sealed door is in the closed position, the anti-detachment plate is used to block the outer guide rail.

[0008] Preferably, the door opening and closing assembly includes a mounting sleeve, a drive screw, and a floating joint. The mounting sleeve is fixedly installed on the sealing door bracket and its inner side wall is provided with an internal thread that mates with the drive screw. The drive screw passes through the mounting sleeve and its protruding end is rotatably connected to the floating joint. The floating joint is fixedly connected to the sealing door body.

[0009] Preferably, the door opening and closing assembly includes a drive cylinder, which is horizontally fixedly mounted on the sealing door bracket, and the piston rod of the drive cylinder is fixedly connected to the sealing door body.

[0010] Preferably, a U-shaped handle is fixedly installed on the outside of the sealed door.

[0011] Preferably, both the outer and inner guide rails are MISUMI C-SRRH51Y28 drawer rails.

[0012] Secondly, this application provides a vacuum oven that includes the aforementioned sealing door structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This structure eliminates the need for external guide rail mounting brackets that extend significantly to both sides of the housing, making the overall lateral dimension of the equipment more consistent with the width of the internal working cavity. This reduces the space occupied during installation and meets the compact layout requirements of multiple devices in industrial workshops. Furthermore, by symmetrically arranging a double-track assembly consisting of an outer guide rail, an inner guide rail, a moving slider, and a counterweight slider on the upper and lower parts of the sealing door bracket, and coordinating the movement stroke of the moving slider with the first and second inner limit blocks on the inner guide rail, the coordinated movement of the moving slider and the counterweight slider is achieved. That is, when the sealing door is in the open position, the distance between the two is reduced to adapt to the layout of the open door; when the sealing door is in the closed position, the distance between the two increases and can be symmetrically distributed on both sides of the sealing door, so that the force points of the sealing door are evenly distributed. This makes the contact pressure between the door and the door frame more stable when the opening and closing door assembly closes the sealing door, significantly improving the sealing reliability of the vacuum oven. At the same time, the uniform force on the sealing door reduces the wear of the sealing ring between the door and the door frame, extending the service life of the sealing components and the sealing door. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the sealed door in the open position in this application; Figure 2 This is a structural schematic diagram of the sealed door in the closed position in this application; Figure 3 yes Figure 1 A magnified view of part A in the middle; Figure 4 This is a structural schematic diagram of the sealing door bracket and the sealing door body in this application; Figure 5 yes Figure 4 A magnified view of part B in the diagram.

[0015] Reference numerals in the attached drawings: 1. Sealed door bracket; 2. Sealed door body; 3. Opening and closing door assembly; 31. Mounting sleeve; 32. Drive screw; 33. Floating joint; 4. Outer guide rail; 5. Inner guide rail; 6. Moving slider; 7. Counterweight slider; 8. First inner limit block; 9. Second inner limit block; 10. L-shaped push block; 11. Matching block; 12. Outer push block; 13. Anti-detachment plate; 14. U-shaped handle. Detailed Implementation

[0016] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0017] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0018] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0019] The following is a reference appendix. Figure 1 To be continued Figure 5 This application describes a sealing door structure and a vacuum oven having the sealing door structure.

[0020] Reference Figures 1 to 5 A sealed door structure includes a sealed door bracket 1, which is provided with a sealed door body 2. An opening and closing door assembly 3 is connected between the sealed door bracket 1 and the sealed door body 2. A double track assembly is symmetrically arranged on the upper and lower sides of the sealed door bracket 1. The double track assembly includes an outer guide rail 4, an inner guide rail 5, a movable slider 6, and a counterweight slider 7. The outer guide rail 4 is fixedly connected to the sealed door bracket 1, and the inner guide rail 5 is fixedly connected to a vacuum oven. The movable slider 6 and the counterweight slider 7 are both slidably connected to the inner guide rail 5, and the movable slider 6 and the counterweight slider 7 are both slidably engaged with the outer guide rail 4. A first inner limit block 8 and a second inner limit block 9 are provided on the inner guide rail 5. The movable slider 6 is located between the first inner limit block 8 and the second inner limit block 9, and the counterweight slider 7 is located between the end of the inner guide rail 5 and the first inner limit block 8. The sealing door 2 has an open position and a closed position on its moving path. When the sealing door 2 moves closer to the open position, the moving slider 6 moves closer to the counterweight slider 7. When the sealing door 2 is in the open position, the moving slider 6 abuts against the first inner limit block 8. When the sealed door 2 moves closer to the closed position, the moving slider 6 moves away from the counterweight slider 7, and when the sealed door 2 is in the closed position, the moving slider 6 abuts against the second inner limit block 9; Specifically, a double-track assembly is formed by the outer guide rail 4, inner guide rail 5, movable slider 6, and counterweight slider 7 symmetrically arranged on the upper and lower sides of the sealing door bracket 1. Combined with the first inner limit block 8 and the second inner limit block 9 limiting the stroke of the movable slider 6, smooth movement of the sealing door 2 is achieved. Furthermore, technicians can control the position of the first inner limit block 8 and the second inner limit block 9 on the inner guide rail 5 to control the landing point of the movable slider 6 and the counterweight slider 7 when the sealing door 2 is in the open or closed position. This ensures that when the sealing door 2 is in the open position, the movable slider 6 and the counterweight slider... 7 can tend to merge and jointly support the sealed door 2 in the open state, improving the structural stability of the sealed door 2 in the open state; so that when the sealed door 2 is in the closed state, the moving slider 6 and the counterweight slider 7 can be symmetrically distributed on both sides of the sealed door 2, so that the force points of the sealed door 2 are evenly distributed and not easy to shake, thereby ensuring the stable contact pressure between the sealed door 2 and the door frame, significantly improving the sealing reliability of the vacuum oven. At the same time, through the double slider structure design of double guide rail, counterweight slider 7 and moving slider 6, the defect of insufficient support strength on one side of the single guide rail design can be solved.

[0021] Preferably, an L-shaped push block 10 is fixedly installed on the outer guide rail 4, a mating block 11 is fixedly installed on the top of the movable slider 6, and an outer push block 12 is fixedly installed on the end of the outer guide rail 4 near the second inner limit block 9; when the sealed door 2 moves closer to the closed position, the L-shaped push block 10 is used to make way for the counterweight slider 7 and abut against the mating block 11; when the sealed door 2 moves closer to the open position, the outer push block 12 is used to abut against the movable slider 6; Specifically, the L-shaped push block 10 fixed on the outer guide rail 4, the mating block 11 on the top of the movable slider 6, and the outer push block 12 at the end of the outer guide rail 4 work together during the movement of the sealed door 2. When the sealed door 2 is close to the closed position, the L-shaped push block 10 provides space for the counterweight slider 7 to move and abuts against the mating block 11 to assist the movable slider 6 in precise positioning. When the sealed door 2 is close to the open position, the outer push block 12 abuts against the movable slider 6 to assist the movable slider 6 in resetting. This provides precise guidance and auxiliary limit for the movement trajectory of the movable slider 6 and the counterweight slider 7, preventing the double sliders from deviating or jamming during movement and improving the accuracy of the movement of the double track assembly.

[0022] Preferably, an anti-detachment plate 13 is fixedly connected to the end of the inner guide rail 5 near the second inner limit block 9. When the sealed door 2 is in the closed position, the anti-detachment plate 13 is used to block the outer guide rail 4. When the sealed door 2 moves to the closed position, the anti-detachment plate 13 and the outer guide rail 4 form a blocking cooperation to limit the excessive movement of the outer guide rail 4, thereby improving the structural safety of the dual-track assembly.

[0023] In one embodiment, the door opening and closing assembly 3 includes a mounting sleeve 31, a drive screw 32, and a floating joint 33. The mounting sleeve 31 is fixedly installed on the sealing door bracket 1, and its inner sidewall is provided with an internal thread (not shown in the figure) that is threaded to the drive screw 32. The drive screw 32 passes through the mounting sleeve 31, and its protruding end is rotatably connected to the floating joint 33. The floating joint 33 is fixedly connected to the sealing door body 2. When it is necessary to open or close the sealing door body 2, by rotating the drive screw 32, the screw moves axially along the direction of the mounting sleeve 31, and the floating joint 33 drives the sealing door body 2 to move toward or away from the door frame, thereby completing the opening and closing of the sealing door body 2.

[0024] In another embodiment, the opening and closing door assembly 3 includes a drive cylinder (not shown in the figure), which is horizontally fixedly installed on the sealing door bracket 1. The piston rod of the drive cylinder is fixedly connected to the sealing door body 2. By setting the drive cylinder, the sealing door body 2 can be provided with automated driving power to replace manual operation, realize the automatic opening and closing of the sealing door body 2, reduce the cost of manual operation, and adapt to automated production scenarios.

[0025] Preferably, a U-shaped handle 14 is fixedly installed on the outside of the sealed door body 2 to provide a gripping point for the operator. When manually operating the sliding of the sealed door body 2, it is convenient for the operator to apply force, improving the convenience of manual operation. In the event of failure of the automatic drive mechanism, it can be used for emergency opening and closing of the door. It should be noted that in actual design, an automatic drive mechanism, such as a linear motor or cylinder, can be set at the sealing door 2 to drive the sliding of the sealing door 2. This will not be elaborated here.

[0026] As a preferred option, both the outer guide rail 4 and the inner guide rail 5 use MISUMI C-SRRH51Y28 drawer slides. The heavy load-bearing capacity and multi-stage folding sliding characteristics of this model of slide are suitable for the weight and movement requirements of the sealed door body 2, ensuring the long-term sliding stability of the heavy-duty sealed door body 2, avoiding deformation of ordinary tracks due to insufficient load-bearing capacity, and extending the service life of the dual track assembly.

[0027] This application also provides a vacuum oven, which includes the aforementioned sealed door structure. By adopting the aforementioned sealed door structure in the vacuum oven, the working requirements of the vacuum oven can be matched, so that the vacuum oven does not need to install an external guide rail mounting bracket that extends significantly to both sides of the oven body. This makes the overall lateral dimension of the equipment more consistent with the width of the internal working cavity, which can reduce the installation space occupied, meet the compact layout requirements of multiple equipment in industrial workshops, solve the problems of large space occupation and low sealing reliability of existing vacuum ovens, and significantly improve the overall performance of the vacuum oven.

[0028] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A sealed door structure, characterized in that, include: A sealing door bracket (1) is provided with a sealing door body (2). An opening and closing door assembly (3) is connected between the sealing door bracket (1) and the sealing door body (2). A double track assembly is symmetrically provided on the upper and lower sides of the sealing door bracket (1). The double track assembly includes an outer guide rail (4), an inner guide rail (5), a movable slider (6), and a counterweight slider (7). The outer guide rail (4) is fixedly connected to the sealing door bracket (1), and the inner guide rail (5) is fixedly connected to the vacuum oven. The movable slider (6) and the counterweight slider (7) are both slidably connected to the inner guide rail (5), and the movable slider (6) and the counterweight slider (7) are both slidably engaged with the outer guide rail (4). A first inner limit block (8) and a second inner limit block (9) are provided on the inner guide rail (5). The movable slider (6) is located between the first inner limit block (8) and the second inner limit block (9), and the counterweight slider (7) is located between the end of the inner guide rail (5) and the first inner limit block (8). There are open and closed positions on the moving path of the sealed door (2). When the sealed door (2) moves closer to the open position, the moving slider (6) moves closer to the counterweight slider (7). When the sealed door (2) is in the open position, the moving slider (6) abuts against the first inner limit block (8). When the sealed door (2) moves closer to the closed position, the moving slider (6) moves away from the counterweight slider (7), and when the sealed door (2) is in the closed position, the moving slider (6) abuts against the second inner limit block (9).

2. The sealing door structure as described in claim 1, characterized in that, An L-shaped push block (10) is fixedly installed on the outer guide rail (4), a mating block (11) is fixedly installed on the top of the movable slider (6), and an outer push block (12) is fixedly installed on the end of the outer guide rail (4) near the second inner limit block (9). When the sealed door (2) moves closer to the closed position, the L-shaped push block (10) is used to make way for the counterweight slider (7) and abut against the mating block (11); When the sealed door (2) moves closer to the open position, the outer push block (12) is used to abut against the moving slider (6).

3. The sealing door structure as described in claim 1, characterized in that, An anti-detachment plate (13) is fixedly connected to the end of the inner guide rail (5) near the second inner limit block (9). When the sealed door (2) is in the closed position, the anti-detachment plate (13) is used to block the outer guide rail (4).

4. A sealing door structure as described in claim 1, characterized in that, The door opening and closing assembly (3) includes a mounting sleeve (31), a drive screw (32) and a floating joint (33). The mounting sleeve (31) is fixedly installed on the sealing door bracket (1) and its inner side wall is provided with an internal thread that is threaded to the drive screw (32). The drive screw (32) passes through the mounting sleeve (31) and its protruding end is rotatably connected to the floating joint (33). The floating joint (33) is fixedly connected to the sealing door body (2).

5. A sealing door structure as described in claim 1, characterized in that, The door opening and closing assembly (3) includes a drive cylinder, which is horizontally fixedly installed on the sealing door bracket (1), and the piston rod of the drive cylinder is fixedly connected to the sealing door body (2).

6. A sealing door structure as described in claim 1, characterized in that, The sealed door body (2) is fixedly equipped with a U-shaped handle (14).

7. A sealing door structure as described in claim 1, characterized in that, Both the outer guide rail (4) and the inner guide rail (5) are made of MISUMI C-SRRH51Y28 drawer rails.

8. A vacuum oven, characterized in that, Includes the sealing door structure as described in any one of claims 1 to 7.

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