Vacuum drying oven

Abstract

The present application relates to the technical field of drying equipment, and discloses a vacuum drying oven, including a box body and a door body arranged at the opening of the box body, and also including an inner liner, a push rod assembly and a moving sealing strip. The inner liner is arranged in the box body, and a door frame is arranged at the opening; the push rod assembly is arranged between the box body and the inner liner; and the moving sealing strip is fixedly arranged at one end of the push rod assembly. Among them, when the door body is closed, the push rod assembly can drive the moving sealing strip to move and be clamped to the door frame, so that the moving sealing strip cooperates with the door body to seal the inner liner. When the inner liner is depressurized, the push rod assembly can drive the moving sealing strip to separate from the door frame, so that the inner liner can be depressurized quickly. At the same time, when the inner liner needs to return to normal pressure, it only needs to drive the moving sealing strip to separate from the door frame and the door body through the push rod assembly to achieve rapid deflation, thereby improving the stability and efficiency of the vacuum drying oven.

Description

Technical Field

[0001] The present application relates to the technical field of drying equipment, for example, to a vacuum drying box. Background Art

[0002] The vacuum drying oven is specially designed for drying heat-sensitive, easily decomposable and easily oxidizable substances. It can maintain a certain degree of vacuum in the working room during operation and can be filled with inert gas. In particular, some items with complex ingredients can be dried quickly. Moreover, with the advancement of technology, most vacuum drying ovens use intelligent digital temperature regulators for temperature setting, display and control, making them more convenient to use. Vacuum drying ovens are widely used in research and application fields such as biochemistry, chemical pharmaceuticals, medical care, agricultural scientific research, and environmental protection. They can be used for powder drying, baking, and disinfection and sterilization of various glass containers.

[0003] In order to keep the interior of the vacuum drying oven in a vacuum state, a sealing strip is provided between the door and the inner tank to ensure that the interior of the oven is sealed when the door is closed.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the current vacuum drying oven, the pressure inside the inner tank is released only through a pressure relief valve, and the pressure relief speed is slow, which reduces the user experience.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a vacuum drying box. When the inner tank needs to release pressure, a push rod assembly arranged between the box body and the inner tank drives a movable sealing strip to move, so that the movable sealing strip is separated from the door frame, thereby quickly releasing pressure inside the inner tank, thereby improving the user experience.

[0009] The disclosed embodiment provides a vacuum drying oven, comprising a box body and a door body arranged at the opening of the box body, and also comprising an inner liner, a push rod assembly and a moving sealing strip. The inner liner is arranged in the box body, and a door frame is arranged at the opening; the push rod assembly is arranged between the box body and the inner liner; and the moving sealing strip is fixedly arranged at one end of the push rod assembly. When the door body is closed, the push rod assembly can drive the moving sealing strip to move and be clamped to the door frame, so that the moving sealing strip cooperates with the door body to seal the inner liner. When the inner liner is depressurized, the push rod assembly can drive the moving sealing strip to separate from the door frame, so that the inner liner can be depressurized quickly.

[0010] In some embodiments, the push rod assembly includes a push rod mounting block, a vertical push rod and a horizontal push rod. The push rod mounting block is arranged on the first end surface of the inner liner; the vertical push rod includes a first rod segment connected to the push rod mounting block and a retractable second rod segment; the horizontal push rod includes a third rod segment connected to the vertical push rod and a retractable fourth rod segment. The horizontal push rod and the vertical push rod are arranged perpendicular to each other, and the moving sealing strip is fixedly arranged on the fourth rod segment of the horizontal push rod.

[0011] In some embodiments, the door frame includes a connection portion connected to the inner container, and a first bent portion directly connected to the connection portion; the moving sealing strip includes a second bent portion that can be snapped to the first bent portion, and an inclined portion directly connected to the second bent portion. The second bent portion can be snapped to the first bent portion, and the inclined portion can cooperate with the door body to seal the inner container.

[0012] In some embodiments, the vacuum drying box further comprises a sealing strip mounting plate, which is arranged on the fourth rod section of the horizontal push rod and is used for mounting a moving sealing strip.

[0013] In some embodiments, the push rod assembly, the sealing strip mounting plate and the moving sealing strip are configured as a set of sealing assemblies; the door frame body comprises a plurality of side panels connected end to end, wherein a portion of the plurality of side panels are provided with fixed sealing strips, and the remaining side panels are each provided with a set of sealing assemblies.

[0014] In some embodiments, the vacuum drying oven further comprises a locking device, which comprises a locking buckle and a locking protrusion. The locking buckle is rotatably arranged on the first side of the door body; the locking protrusion is arranged at a position of the box body corresponding to the locking buckle. When the door body is closed, the locking buckle can be engaged with the locking protrusion to lock the door body.

[0015] In some embodiments, the locking device further comprises a locking motor which is disposed on the door body and can be used to drive the locking buckle to rotate.

[0016] In some embodiments, the vacuum drying box further comprises a first sensor and a pressure boss. The first sensor is disposed on a side of the box body corresponding to the door body; the pressure boss is disposed at a position corresponding to the door body and the first sensor. The first sensor can be used to detect the pressure value of the pressure boss on the box body.

[0017] In some embodiments, the vacuum drying box further comprises a vacuum device, which is disposed in the inner container and can be used to extract the air in the inner container so that the inner container is in a vacuum state.

[0018] In some embodiments, the vacuum drying box further comprises a door motor, which is disposed on the pivoting side of the box body and can be used to drive the door body to rotate so as to open or close the opening of the box body.

[0019] The vacuum drying oven provided in the embodiments of the present disclosure can achieve the following technical effects:

[0020] The disclosed embodiment provides a vacuum drying oven, comprising a box body and a door body arranged at the opening of the box body, and also comprising an inner liner, a push rod assembly and a moving sealing strip. The inner liner is arranged in the box body, and a door frame is arranged at the opening; the push rod assembly is arranged between the box body and the inner liner; and the moving sealing strip is fixedly arranged at one end of the push rod assembly. When the door body is closed, the push rod assembly can drive the moving sealing strip to move and be clamped to the door frame, so that the moving sealing strip cooperates with the door body to seal the inner liner. Since the moving sealing strip is clamped to the door frame, it can be ensured that the moving sealing strip fits tightly with the door body to avoid air leakage. At the same time, when the inner liner needs to return to normal pressure, it only needs to drive the moving sealing strip to separate from the door frame and the door body through the push rod assembly to achieve rapid pressure relief, thereby improving the stability and efficiency of the vacuum drying oven.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a schematic structural diagram of a vacuum drying oven provided in an embodiment of the present disclosure;

[0024] Figure 2 Schematic diagram of the cross-sectional structure of a vacuum drying oven provided in the embodiment of the present disclosure

[0025] Figure 3 is a structural schematic diagram of an inner liner and a push rod assembly provided by an embodiment of the present disclosure;

[0026] Figure 4 is a schematic structural diagram of a horizontal push rod provided by an embodiment of the present disclosure;

[0027] Figure 5 It is a schematic diagram of a movable sealing strip and a door frame body provided by an embodiment of the present disclosure;

[0028] Figure 6 is a schematic structural diagram of a door body provided by an embodiment of the present disclosure;

[0029] Figure 7 It is a structural schematic diagram of a box provided in an embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 10: box body; 101: door body motor; 102: locking protrusion; 103: first sensor; 104: second sensor; 20: liner; 30: door body; 301: locking buckle; 302: locking motor; 303: pressure boss; 304: control switch; 40: push rod assembly; 401: push rod mounting block; 402: vertical push rod; 403: horizontal push rod; 404: moving sealing strip; 405: sealing strip mounting plate; 4041: second bending portion; 4042: inclined portion; 50: door frame; 501: connecting portion; 502: first bending portion; 503: fixed sealing strip. DETAILED DESCRIPTION

[0032] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0033] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] Unless otherwise stated, the term "plurality" means two or more.

[0037] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0038] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0040] The embodiment of the present disclosure provides a vacuum drying box, comprising a box body 10 and a door body 30 disposed at the opening of the box body 10, and also comprising an inner liner 20, a push rod assembly 40 and a moving sealing strip 404. The inner liner 20 is disposed in the box body 10, and a door frame 50 is disposed at the opening; the push rod assembly 40 is disposed between the box body 10 and the inner liner 20; and the moving sealing strip 404 is fixedly disposed at one end of the push rod assembly 40. When the door body 30 is closed, the push rod assembly 40 can drive the moving sealing strip 404 to move and be clamped to the door frame 50, so that the moving sealing strip 404 cooperates with the door body 30 to seal the inner liner 20. When the inner liner 20 is depressurized, the push rod assembly 40 can drive the moving sealing strip 404 to separate from the door frame 50, so that the inner liner 20 is depressurized quickly.

[0041] Specifically, when the door body 30 is in a closed state and the push rod assembly 40 is in a retracted state, there is a gap between the door body 30 and the inner liner 20, which is used to connect the inside and outside of the inner liner 20 so that the air inside and outside of the inner liner 20 can circulate. The push rod assembly 40 can drive the moving sealing strip 404 to move along a preset trajectory to the door frame 50, so that the moving sealing strip 404 is engaged with the door frame 50. At this time, the moving sealing strip 404 fits with the door body 30 to block the gap between the door body 30 and the inner liner 20, so that the inside and outside of the inner liner 20 are isolated and the air inside and outside of the inner liner 20 is prevented from circulating. When the door body 30 needs to be opened, the moving sealing strip 404 can be driven by the push rod assembly 40 to move in the opposite direction so that the moving sealing strip 404 is separated from the door frame 50 and the door body 30. At this time, the inside and outside of the inner liner 20 are connected so that the inside of the inner liner 20 quickly returns to normal pressure.

[0042] It is understandable that, since the moving sealing strip 404 can be snap-fitted to the door frame 50, the moving sealing strip 404 can be more closely fitted to the door body 30, preventing a gap from being generated between the moving sealing strip 404 and the door body 30 and failing to seal the interior of the liner 20. At the same time, the push rod assembly 40 drives the moving sealing strip 404 to separate from the door frame 50 and the door body 30, so that the interior of the liner 20 can quickly return to normal pressure.

[0043] It can be seen that the vacuum drying oven of the present application has the advantages of good sealing and rapid pressure relief compared with the existing vacuum drying oven which is sealed by the fixed moving sealing strip 404 and restores the normal pressure by the air relief valve.

[0044] In some embodiments, the push rod assembly 40 includes a push rod mounting block 401, a vertical push rod 402, and a horizontal push rod 403. The push rod mounting block 401 is disposed on the first end surface of the inner liner 20; the vertical push rod 402 includes a first rod segment connected to the push rod mounting block 401, and a retractable second rod segment; the horizontal push rod 403 includes a third rod segment connected to the vertical push rod 402, and a retractable fourth rod segment. The horizontal push rod 403 and the vertical push rod 402 are disposed perpendicular to each other, and the moving sealing strip 404 is fixedly disposed on the fourth rod segment of the horizontal push rod 403.

[0045] Specifically, the push rod mounting block 401 is fixedly mounted on the first end surface, wherein the first end surface is arranged opposite to the opening of the inner liner 20. The first rod segment of the vertical push rod 402 is fixedly connected to the push rod mounting block 401, and the second rod segment of the vertical push rod 402 can move vertically telescopically. The third rod segment of the horizontal push rod 403 is fixedly connected to the second rod segment of the vertical push rod 402 through the connecting block, and the fourth rod segment of the horizontal push rod 403 can move horizontally telescopically.

[0046] When the door body 30 is closed, the vertical push rod 402 drives the horizontal push rod 403 and the moving sealing strip 404 to move vertically, so that the height of the moving sealing strip 404 corresponds to the height of the door frame 50. The horizontal push rod 403 drives the moving sealing strip 404 to move horizontally to the door frame 50, so that the moving sealing strip 404 is engaged with the door frame 50 and fits with the door body 30.

[0047] In some embodiments, the door frame 50 includes a connection portion 501 connected to the inner container 20, and a first bent portion 502 directly connected to the connection portion 501; the moving sealing strip 404 includes a second bent portion 4041 that can be snapped to the first bent portion 502, and an inclined portion 4042 that is directly connected to the second bent portion 4041. The second bent portion 4041 can be snapped to the first bent portion 502, and the inclined portion 4042 can cooperate with the door body 30 to seal the inner container 20.

[0048] Specifically, the horizontal projection length of the inclined portion 4042 is a first length L1, and the thickness of the first bent portion 502 is a first thickness D1, wherein the first length L1 is greater than the first thickness D1.

[0049] When the door body 30 is closed, the vertical push rod 402 drives the horizontal push rod 403 and the moving sealing strip 404 to move in the vertical direction, so that the height of the first bending portion 502 is between the second bending portion 4041 and the inclined portion 4042. The horizontal push rod 403 drives the moving sealing strip 404 to move to the door frame 50, and the inclined portion 4042 extends to the outside of the door frame 50, so that the moving sealing strip 404 is flush with the fixed sealing strip 503 and fits with the door body 30. The vertical push rod 402 then drives the horizontal push rod 403 and the moving sealing strip 404 to move upward, so that the second bending portion 4041 is clamped with the first bending portion 502. At this time, since the second bending portion 4041 is clamped with the first bending portion 502, it can be avoided that when the door body 30 squeezes the inclined portion 4042, the inclined portion 4042 moves, resulting in a gap between it and the door body 30.

[0050] When the door body 30 needs to be opened, the vertical push rod 402 drives the horizontal push rod 403 and the moving sealing strip 404 to move vertically in the opposite direction, so that the second bending portion 4041 is separated from the first bending portion 502. The horizontal push rod 403 drives the moving sealing strip 404 to move horizontally in the opposite direction, so that the inclined portion 4042 is separated from the door body 30. Then the vertical push rod 402 drives the horizontal push rod 403 and the moving sealing strip 404 to move vertically in the opposite direction, so that the horizontal push rod 403 and the moving sealing strip 404 move to the initial position. At this time, since the inclined portion 4042 is separated from the door body 30, there is a gap between the door body 30 and the inner liner 20, and the inner liner 20 can quickly restore the normal pressure.

[0051] In some embodiments, the vacuum drying box further comprises a sealing strip mounting plate 405. The sealing strip mounting plate 405 is disposed on the fourth rod section of the horizontal push rod 403 and is used to mount the moving sealing strip 404.

[0052] Specifically, the length of the sealing strip mounting plate 405 is equal to the length of the moving sealing strip 404, so that when the horizontal push rod 403 drives the moving sealing strip 404 to move, both ends and the middle of the moving sealing strip 404 move simultaneously. Preferably, the moving sealing strip 404 can be fixedly mounted on the sealing strip mounting plate 405 by gluing to avoid leaving a gap between the moving sealing strip 404 and the sealing strip mounting plate 405.

[0053] Furthermore, the sealing strip mounting plate 405 is made of thermosetting materials, such as phenolic plastics, epoxy plastics, amino plastics, unsaturated polyesters, alkyd plastics, and the like.

[0054] In some embodiments, the push rod assembly 40, the sealing strip mounting plate 405 and the moving sealing strip 404 are configured as a set of sealing components; the door frame 50 includes a plurality of side panels connected end to end, wherein a fixed sealing strip 503 is disposed on some of the plurality of side panels, and a set of sealing components is disposed on the remaining side panels.

[0055] Specifically, the push rod assembly 40, the sealing strip mounting plate 405 and the moving sealing strip 404 are respectively provided in two groups on the first side plate and the second side plate of the door frame 50; and the third side plate and the fourth side plate of the door frame 50 are provided with a fixed sealing strip 503. Among them, the moving sealing strip 404 and the fixed sealing strip 503 can cooperate with the door body 30 to seal the inner liner 20.

[0056] In this embodiment, the multiple side portions of the door frame body include the above-mentioned connecting portion 501 and the first bending portion 502 , and the fixed sealing strip includes a second bending portion 4041 and an inclined portion 4042 .

[0057] It is understandable that, with such an arrangement, when the door body 30 needs to be opened, the two sets of movable sealing strips 404 and the door body 30 are separated at the same time, which can increase the speed of restoring the inner pressure of the inner tank 20 to normal.

[0058] Furthermore, the first side plate and the second side plate of the door frame body 50 are arranged opposite to each other, and the third side plate and the first side plate are arranged adjacent to each other.

[0059] In some embodiments, the vacuum drying oven further comprises a locking device, which comprises a locking buckle 301 and a locking protrusion 102. The locking buckle 301 is rotatably disposed on the first side of the door body 30; the locking protrusion 102 is disposed at a position of the box body 10 corresponding to the locking buckle 301. When the door body 30 is closed, the locking buckle 301 can be engaged with the locking protrusion 102 to lock the door body 30.

[0060] Specifically, the locking buckle 301 includes a first end that can be locked to the locking protrusion 102, and a second end that is rotatably connected to the door body 30, and the first end and the second end of the locking buckle 301 are bent and connected. When the door body 30 is closed, the second end of the locking buckle 301 drives the first end to rotate, so that the first end of the locking buckle 301 is locked to the locking protrusion 102.

[0061] In some embodiments, the locking device further includes a locking motor 302. The locking motor 302 is disposed on the door body 30 and can be used to drive the locking buckle 301 to rotate.

[0062] Specifically, the locking motor 302 is disposed in the door body 30. When the door body 30 is in a closed state, the locking motor 302 can drive the locking buckle 301 to rotate toward the locking boss, so that the locking buckle 301 is engaged with the locking protrusion 102 to lock the door body 30. When the door body 30 needs to be opened, the locking motor 302 drives the locking buckle 301 to rotate in the opposite direction, so that the locking buckle 301 is disengaged from the locking protrusion 102 to unlock the door body 30. The motor rotation angle is greater than or equal to 90°, for example, the motor rotation angle is 90°, 100° or 110°.

[0063] In some embodiments, the vacuum drying oven further includes a first sensor 103 and a pressure boss 303. The first sensor 103 is disposed on a side of the box body 10 corresponding to the door body 30; the pressure boss 303 is disposed at a position of the door body 30 corresponding to the first sensor 103. The first sensor 103 can be used to detect the pressure value of the pressure boss 303 on the box body 10.

[0064] Specifically, the first sensor 103 is a pressure sensor and is provided with a pressure threshold. Before the vacuum drying oven is operated, the first sensor 103 first detects the pressure value applied to it by the pressure boss 303, and compares the pressure value with the pressure threshold. When the pressure value is greater than or equal to the pressure threshold, the vacuum drying oven determines that the door body 30 is in a closed state and starts to operate. When the pressure value is less than the pressure threshold, the vacuum drying oven determines that the door body 30 is in an open state, terminates the operation and reminds the user to avoid potential safety hazards.

[0065] Furthermore, the vacuum drying oven is also provided with a second sensor 104 which can be used to detect the temperature of the inner container 20 .

[0066] Specifically, the second sensor 104 is a temperature sensor, which can be used to detect the temperature inside the inner liner 20 in real time to prevent the temperature inside the inner liner 20 from being too high or too low and causing damage to the items.

[0067] In some embodiments, the vacuum drying oven further comprises a vacuum device, which is disposed in the inner container 20 and can be used to extract the air in the inner container 20 so that the inner container 20 is in a vacuum state.

[0068] Specifically, the vacuum drying box can extract the air in the inner liner 20 through a vacuum device to make the interior of the inner liner 20 in a vacuum state, and then heat the interior of the inner liner 20 to quickly dry the items in the inner liner 20.

[0069] In the vacuum drying oven of the present invention, the vacuum environment reduces the boiling point of the liquid, so the vacuum drying oven can be applied to heat-sensitive substances; for samples that are not easy to dry, such as powders or other granular samples, the use of vacuum drying can effectively shorten the drying time.

[0070] Furthermore, the door body 30 is provided with an observation window, which can be used to observe the interior of the inner container 20 .

[0071] Specifically, when the vacuum drying box is in operation, the door body 30 is closed, and the user can observe the drying condition of the items inside the inner container 20 through the observation window. Preferably, the observation window is made of tempered glass.

[0072] In some embodiments, the vacuum drying box further comprises a door motor 101. The door motor 101 is disposed on the pivoting side of the box body 10 and can be used to drive the door body 30 to rotate so as to open or close the opening of the box body 10.

[0073] Specifically, the door body 30 is further provided with a control switch 304, which can be used to control the forward or reverse rotation of the door body motor 101. When the door body 30 is in an open state, the control switch 304 can be used to control the door body motor 101 to drive the door body 30 to rotate toward the box body 10, so that the door body 30 closes the opening of the box body 10. Then the locking motor 302 is controlled to drive the locking buckle 301 to rotate toward the locking boss, so that the locking buckle 301 is engaged with the locking protrusion 102 to lock the door body 30.

[0074] When the door 30 is in a closed state, the locking motor 302 can be controlled by the control switch 304 to drive the locking buckle 301 to rotate in the opposite direction, so that the locking buckle 301 is disengaged from the locking protrusion 102 to unlock the door 30. Then, the door motor 101 is controlled to drive the door 30 to rotate in the opposite direction, so that the door 30 opens the box 10.

[0075] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A vacuum drying oven, comprising a box body and a door body movably arranged at the opening of the box body, characterized in that: Also includes: The inner tank is arranged in the box body, and a door frame is arranged at the opening; A push rod assembly is arranged between the box body and the inner container; and, A moving sealing strip, fixedly disposed at one end of the push rod assembly; Wherein, when the door body is closed, the push rod assembly can drive the moving sealing strip to move and be clamped to the door frame, so that the moving sealing strip cooperates with the door body to seal the inner container; when the inner container is depressurized, the push rod assembly can drive the moving sealing strip to separate from the door frame, so that the inner container is depressurized; The push rod assembly comprises: A push rod mounting block, arranged on the first end surface of the inner tank; A vertical push rod, comprising a first rod section connected to the push rod mounting block and a telescopic second rod section; A horizontal push rod, comprising a third rod segment connected to the second rod segment and a retractable fourth rod segment; Wherein, the horizontal push rod and the vertical push rod are arranged perpendicular to each other, and the moving sealing strip is fixedly arranged on the fourth rod section of the horizontal push rod; The door frame includes a connecting portion connected to the inner container and a first bending portion directly connected to the connecting portion; and, The moving sealing strip comprises a second bending portion that can be snap-connected to the first bending portion, and an inclined portion that is directly connected to the second bending portion; The second bent portion can be snap-connected to the first bent portion, and the inclined portion can abut against the door body to cooperate and seal the inner container. The vacuum drying box further comprises: a sealing strip mounting plate, which is arranged on the fourth rod section of the horizontal push rod and is used for mounting the moving sealing strip.

2. The vacuum drying oven according to claim 1, characterized in that: The push rod assembly, the sealing strip mounting plate and the moving sealing strip are constructed as a set of sealing assemblies; The door frame body includes a plurality of side panels connected end to end; Part of the side panels are provided with fixed sealing strips, and the remaining side panels are each provided with a corresponding set of the sealing components.

3. The vacuum drying oven according to claim 1, characterized in that: Also included is a locking device, the locking device comprising: a locking buckle rotatably disposed on the first side portion of the door body; and, A locking protrusion is arranged at a position corresponding to the box body and the locking buckle; Wherein, when the door body is closed, the locking buckle can be engaged with the locking protrusion to lock the door body.

4. The vacuum drying oven according to claim 3, characterized in that: The locking device also includes: The locking motor is arranged on the door body and can be used to drive the locking buckle to rotate.

5. The vacuum drying oven according to claim 1, characterized in that: Also includes: A first sensor is disposed on a side of the box body corresponding to the door body; and A pressure boss is arranged at a position of the door body corresponding to the first sensor; Wherein, the first sensor can be used to detect the pressure value of the pressure boss on the box body.

6. The vacuum drying oven according to claim 1, characterized in that: Also includes: The vacuum device is arranged outside the inner container and can be used to extract the air in the inner container to put the inner container in a vacuum state.

7. The vacuum drying oven according to any one of claims 1 to 6, characterized in that: Also includes: The door motor is arranged on the pivoting side of the box body and can be used to drive the door body to rotate so as to open or close the opening of the box body.

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