Shielding door, microwave shielding box and microwave equipment
By introducing movable guides and elastic parts into the shield doors of microwave equipment, the problem of irregulating the degree of fit of the shield doors and pressure release when gas explosion is solved, and more efficient microwave shielding and safe equipment operation are achieved.
Patent Information
- Application Number
- CN202422030313.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The degree of fit of existing microwave equipment is unadjustable, resulting in difficult microwave leakage or door closing, and may cause the shield door to explode during severe gas reactions.
A shield door is designed to provide a movable guide member and an elastic member between the door body and the lining plate to achieve a close fit between the fitting part of the door body and the target object, and release pressure through the pressure relief passage of the elastic member when the gas explodes.
It improves the fit of the shield door, prevents microwave leakage, and effectively releases pressure when gas explodes, avoiding damage to the shield door.
Smart Images
Figure CN222976713U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of scientific instruments, in particular to a shielding door, a microwave shielding box and a microwave device. Background Art
[0002] In a microwave device, a shielding door is mainly used to shield microwaves and prevent microwave leakage. The shielding doors of existing microwave devices are generally fixedly installed, and the fitting degree with the front panel of the microwave resonant cavity of the microwave device cannot be adjusted. If the fitting is insufficient, microwave leakage is likely to occur; if the fitting is too tight, it is difficult to close the door and the front panel is easily damaged. Moreover, during use, for example, during the use of a microwave chemical device (such as a microwave digestion instrument) in a laboratory, if an explosion occurs in the microwave resonant cavity due to a violent reaction of the sample, a large amount of gas will be generated, and the pressure in the cavity will increase sharply. If the exhaust gas cannot be discharged in time, the cavity may be deformed, and even the shielding door may explode. Content of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a shielding door, a microwave shielding box and a microwave device, which can facilitate closing the door and improve the fitting degree of the shielding door.
[0004] On the one hand, an embodiment of the utility model provides a shielding door, including:
[0005] A door body having opposite first and second surfaces, and a fitting portion is provided on the first surface of the door body;
[0006] A lining plate, at least one side of which is provided with a box body connecting portion. The lining plate is adjacent to the second surface of the door body. An activity guiding member is provided on the lining plate and is connected to the door body through the activity guiding member. An elastic member is also connected between the lining plate and the door body. A first end of the elastic member abuts against the second surface of the door body, and a second end of the elastic member abuts against the lining plate.
[0007] According to some embodiments of the utility model, the fitting portion is annularly arranged on the first surface of the door body.
[0008] According to some embodiments of the utility model, the activity guiding member includes a guiding sleeve and a guiding post. The guiding sleeve is installed on the lining plate, and the guiding post movably passes through the guiding sleeve and is connected to the second surface of the door body.
[0009] According to some embodiments of the utility model, the number of the activity guiding members is multiple, and the multiple activity guiding members are annularly arranged on the lining plate.
[0010] According to some embodiments of the utility model, the box body connecting portion is a rotating shaft.
[0011] According to some embodiments of the present invention, the box body connecting part is a rotating shaft and a buckle, and the rotating shaft and the buckle are respectively arranged on opposite sides of the lining board.
[0012] On the other hand, an embodiment of the present invention provides a microwave shielding box, which includes a box body and the above-mentioned shielding door. A shielding cavity is arranged in the box body. A front panel is arranged on the opening side of the box body where the shielding cavity is located, and the shielding door is connected to the front panel.
[0013] According to some embodiments of the present invention, the elastic member has a first compressed state and a second compressed state. In the first compressed state, the fitting part of the door body is in contact with the front panel. In the second compressed state, a pressure relief channel is formed between the fitting part of the door body and the front panel.
[0014] In yet another aspect, an embodiment of the present invention provides a microwave device, which includes the above-mentioned shielding door or the above-mentioned microwave shielding box.
[0015] According to some embodiments of the present invention, the microwave device is a microwave reaction device or a microwave digestion device.
[0016] The embodiments of the present invention at least have the following beneficial effects:
[0017] An active guiding member and an elastic member are connected between the door body and the lining board. When closing the door, the elastic member can be compressed, which is convenient for closing the door. After closing the door, the lining board continuously applies pressure to the door body through the elastic member, so that the fitting part of the door body can be in close contact with the target object (such as the box body of the microwave shielding box).
[0018] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0020] Figure 1 is a schematic structural view (bottom direction view) of the shielding door according to an embodiment of the present invention;
[0021] Figure 2 is Figure 1 a side view schematic diagram of the shown shielding door in the natural state (a) and the compressed state (b);
[0022] Figure 3 is Figure 2 a partial enlarged view of the circled position A in
[0023] Figure 4 is Figure 2 a partial enlarged view of the circled position B in
[0024] Figure 5 a schematic structural diagram of the microwave device according to an embodiment of the present utility model;
[0025] Figure 6 is Figure 5 a partial enlarged view of the circled position C in
[0026] Reference numerals:
[0027] shield door 100, door body 110, fitting portion 111, lining plate 120, rotating shaft 131, buckle member 132, movable guide member 140, guide sleeve 141, guide post 142, elastic member 150, box body 210, shielding cavity 211, front panel 212, magnetron 310. Detailed implementation manners
[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.
[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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, and thus should not be construed as limiting the present utility model.
[0030] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or the sequence of the indicated technical features.
[0031] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution. Embodiment 1
[0032] Please refer to Figure 1 and Figure 2 , this embodiment discloses a screen door 100, which includes a door body 110 and a lining plate 120. The door body 110 has opposite first and second surfaces. A fitting portion 111 is provided on the first surface of the door body 110. At least one side of the lining plate 120 is provided with a box body connecting portion. The lining plate 120 is adjacent to the second surface of the door body 110. A movable guide member 140 is provided on the lining plate 120 and is connected to the door body 110 through the movable guide member 140. An elastic member 150 (such as a spring, refer to Figure 3 and Figure 4 ) is also connected between the lining plate 120 and the door body 110. The first end of the elastic member 150 abuts against the second surface of the door body 110, and the second end of the elastic member 150 abuts against the lining plate 120.
[0033] Exemplarily, in use, the lining plate 120 is connected to a target object (such as the box body 210 of a microwave shielding box, refer to Figure 5 ) through the box body connecting portion to cover the shielding cavity 211 provided in the target object, so as to achieve the purpose of shielding microwave leakage. Taking the orientation facing the shielding cavity 211 as the inner side and the orientation away from the shielding cavity 211 as the outer side, the first surface of the door body 110 faces inward. By providing the fitting portion 111 on the first surface of the door body 110, when the door body 110 covers the shielding cavity 211, the fitting portion 111 can be fitted with the target object. The fitting portion 111 can be a flat surface provided on the door body 110. For example, if the target object is a planar structure on the opening side of the shielding cavity 211, the fitting portion 111 can be fitted to the planar structure to completely cover the opening of the shielding cavity 211; the fitting portion 111 can also be a convex structure provided on the door body 110. For example, if the target object is provided with a groove structure adapted to the convex structure on the opening side of the shielding cavity 211, the convex structure can be embedded in the groove structure to completely cover the opening of the shielding cavity 211; the fitting portion 111 can also be a groove structure. For example, if the target object is provided with a convex structure adapted to the groove structure on the opening side of the shielding cavity 211, the groove structure can be sleeved on the convex structure to completely cover the opening of the shielding cavity 211.
[0034] In the related art, the fitting degree of the door body 110 is easily affected by the flatness, machining accuracy, and assembly accuracy of the contact surface (such as the fitting portion 111). In this embodiment, the door body 110 is arranged to be movable relative to the lining plate 120. The movable guide 140 provided on the lining plate 120 guides and limits the moving direction of the door body 110, and the elastic member 150 applies a continuous pressure to the door body 110, so that when the door is closed, the door body 110 can compress the elastic member 150 under the guiding action of the movable guide 140, so that the door body 110 has a certain movable space to facilitate closing the door. After the door is closed, the fitting portion 111 of the door body 110 fits with the target object, and the lining plate 120 continuously applies a pressure to the door body 110 through the elastic member 150, so that the fitting portion 111 of the door body 110 can closely fit with the target object, thereby improving the tightness of the fit and avoiding microwave leakage.
[0035] The fitting portion 111 is annularly arranged on the first surface of the door body 110. Exemplarily, generally, the opening of the shielding cavity 211 of the target object is in a regular shape, such as square or circular, etc. The annular arrangement of the fitting portion 111 can adapt to the opening shape of the shielding cavity 211, so as to completely cover the shielding cavity 211 and avoid microwave leakage caused by gaps in the fitting portion 111.
[0036] Please refer to Figure 3 and Figure 4 As shown in the figure, the movable guide 140 includes a guide sleeve 141 and a guide post 142. The guide sleeve 141 is installed on the lining plate 120, and the guide post 142 movably passes through the guide sleeve 141 and is connected to the second surface of the door body 110. In some application examples, the elastic member 150 is sleeved outside the guide post 142 to fix the elastic member 150. In other application examples, the elastic member 150 is arranged outside the guide post 142, and both ends of the elastic member 150 are fixedly connected to the lining plate 120 and the door body 110 respectively. The guide post 142 can move relative to the guide sleeve 141, so that the door body 110 approaches or moves away from the lining plate 120 along the axial direction of the guide sleeve 141, and then compresses the elastic member 150. Among them, Figure 3 shows a schematic structural diagram of the elastic member 150 in a natural state (i.e., the door open state), Figure 4 shows a schematic structural diagram of the elastic member 150 in a compressed state (i.e., the door closed state).
[0037] The number of the movable guiding members 140 is multiple, and the multiple movable guiding members 140 are arranged annularly on the lining plate 120, and can play a guiding role at multiple positions of the door body 110, enabling each position of the door body 110 to move relatively evenly with respect to the lining plate 120 and avoiding serious inclination. Among them, the number of the elastic members 150 is multiple, and the multiple elastic members 150 can be arranged annularly on the lining plate 120, so as to provide elastic force to multiple positions of the door body 110, enabling the pressure received by the fitting portion 111 of the door body 110 to be more balanced, and thus enabling good fitting with the target object.
[0038] To realize the connection between the lining plate 120 and the target object, in some application examples, please refer to Figure 1 , the box body connecting portion is the rotating shaft 131. For example, a rotary buckle is provided on the target object, and the first side of the lining plate 120 is connected to the target object through the rotating shaft 131, so as to realize relative rotation. In the closed door state, the second side of the lining plate 120 is pressed and limited through the rotary buckle on the target object, so as to realize the locking of the shielding door 100, and further enable the fitting portion 111 of the door body 110 to be in good fit with the target object.
[0039] In some other application examples, please continue to refer to Figure 1 , the box body connecting portion is the rotating shaft 131 and the buckle member 132, and the rotating shaft 131 and the buckle member 132 are respectively arranged on the opposite sides of the lining plate 120. For example, the rotating shaft 131 is arranged on the first side of the lining plate 120 and is rotatably connected to the target object through the rotating shaft 131, while the buckle member 132 is arranged on the second side of the lining plate 120. In the closed door state, the second side of the lining plate 120 is buckled with the target object through the buckle member 132, so as to realize the locking of the shielding door 100, and further enable the fitting portion 111 of the door body 110 to be in good fit with the target object. Embodiment 2
[0040] Please refer to Figure 5 and Figure 6 , this embodiment provides a microwave shielding box, which includes a box body 210 and the above-mentioned shielding door 100. A shielding cavity 211 is arranged in the box body 210. A front panel 212 is arranged on the opening side of the box body 210 where the shielding cavity 211 is located, and the shielding door 100 is connected to the front panel 212. A movable guiding member 140 and an elastic member 150 are connected between the door body 110 and the lining plate 120. When closing the door, the elastic member 150 can be compressed to facilitate closing the door. After closing the door, the lining plate 120 continuously applies pressure to the door body 110 through the elastic member 150, so that the fitting portion 111 of the door body 110 can be closely attached to the front panel 212.
[0041] The elastic member 150 has a first compressed state and a second compressed state. In the first compressed state, the fitting portion 111 of the door body 110 is in contact with the front panel 212. In the second compressed state, a pressure relief channel is formed between the fitting portion 111 of the door body 110 and the front panel 212. Exemplarily, in the closed door state, the fitting portion 111 of the door body 110 is in contact with the front panel 212, thereby compressing the elastic member 150 by the door body 110. At this time, the elastic member 150 is in the first compressed state. During use, if the air pressure in the shielding cavity 211 suddenly increases, the increased air pressure exerts a pressure on the door body 110, causing the door body 110 to further compress the elastic member 150. At this time, the elastic member 150 is in the second compressed state, and a gap (i.e., the pressure relief channel) appears at the contact surface (shown as the mark M in the figure) between the fitting portion 111 of the door body 110 and the front panel 212, thereby leaking the air pressure in the shielding cavity 211 to the outside, and the pressure in the shielding cavity 211 can be restored to normal, which is beneficial to improving the use safety. Embodiment 3
[0042] Please continue to refer to 1, Figure 2 and Figure 5 This embodiment provides a microwave device, including the above-mentioned shielding door 100. An active guiding member 140 and an elastic member 150 are connected between the door body 110 and the lining plate 120. When closing the door, the elastic member 150 can be compressed to facilitate closing the door. After closing the door, the lining plate 120 continuously exerts a pressure on the door body 110 through the elastic member 150, so that the fitting portion 111 of the door body 110 can be in close contact with the target object (such as the box body 210 of the microwave shielding box). Embodiment 4
[0043] Please refer to Figure 5 and Figure 6 This embodiment provides a microwave device, including the above-mentioned microwave shielding box. Devices such as a magnetron 310 and a waveguide can be installed in the microwave shielding box. An active guiding member 140 and an elastic member 150 are connected between the door body 110 and the lining plate 120. When closing the door, the elastic member 150 can be compressed to facilitate closing the door. After closing the door, the lining plate 120 continuously exerts a pressure on the door body 110 through the elastic member 150, so that the fitting portion 111 of the door body 110 can be in close contact with the box body 210 of the microwave shielding box. Among them, the microwave device is a microwave reaction device or a microwave digestion device.
[0044] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.
Claims
1. A screen door, characterized in that: include: The door body (110) has a first surface and a second surface opposite to each other, and the first surface of the door body (110) is provided with a fitting portion (111); A lining plate (120) is provided with a box body connecting portion on at least one side, the lining plate (120) is adjacent to the second side of the door body (110), a movable guide member (140) is provided on the lining plate (120), and the lining plate (120) is connected to the door body (110) through the movable guide member (140), and an elastic member (150) is also connected between the lining plate (120) and the door body (110), the first end of the elastic member (150) is in contact with the second side of the door body (110), and the second end of the elastic member (150) is in contact with the lining plate (120).
2. The screen door according to claim 1, characterized in that: The fitting portion (111) is arranged in a ring shape on the first surface of the door body (110).
3. The screen door according to claim 1, characterized in that: The movable guide member (140) comprises a guide sleeve (141) and a guide column (142); the guide sleeve (141) is mounted on the lining plate (120); the guide column (142) is movably inserted into the guide sleeve (141) and connected to the second surface of the door body (110).
4. The screen door according to claim 1, 2 or 3, characterized in that: There are a plurality of movable guide members (140), and the plurality of movable guide members (140) are arranged in a ring shape on the lining plate (120).
5. The screen door according to claim 1, 2 or 3, characterized in that: The box body connection portion is a rotating shaft (131).
6. The screen door according to claim 1, 2 or 3, characterized in that: The box body connection portion is a rotating shaft (131) and a buckle (132), and the rotating shaft (131) and the buckle (132) are respectively arranged on opposite sides of the lining plate (120).
7. A microwave shielding box, characterized in that: The invention comprises a box body (210) and a shielding door according to any one of claims 1 to 6, wherein a shielding cavity (211) is arranged in the box body (210), a front panel (212) is arranged on the opening side of the box body (210) located in the shielding cavity (211), and the shielding door is connected to the front panel (212).
8. The microwave shielding box according to claim 7, characterized in that: The elastic member (150) has a first compression state and a second compression state. In the first compression state, the fitting portion (111) of the door body (110) fits the front panel (212). In the second compression state, a pressure relief channel is formed between the fitting portion (111) of the door body (110) and the front panel (212).
9. A microwave device, characterized in that: It comprises the shielding door as described in any one of claims 1 to 6 or the microwave shielding box as described in claim 7 or 8.
10. The microwave device according to claim 9, characterized in that: The microwave equipment is a microwave reaction equipment or a microwave digestion equipment.