Door cover assembly and sterilization device

Abstract

The utility model provides a door cover assembly and a sterilization device, and relates to the technical field of sterilization equipment, the door cover assembly comprises a door frame structure, a door body, a first connecting piece, a second connecting piece and an elastic structure, the door body is provided with a sealing structure; the first connecting piece is connected with the door frame structure, a mounting channel and a mounting hole formed in one end of the mounting channel are formed in the first connecting piece, and the hole diameter of the mounting hole is gradually increased in the first direction; the second connecting piece is movably inserted into the mounting channel and penetrates out of the mounting hole to be connected with the door body; the elastic structure is arranged on the second connecting piece in a sleeving mode and arranged in the mounting channel, and the first connecting piece and the second connecting piece can be connected in a floating mode through the elastic structure. According to the sterilization door, the sealing effect between the sterilization door and the sterilization chamber can be improved, and noise can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilization equipment, in particular to a door cover component and a sterilization device. Background Art

[0002] In order to improve the cleanliness of the equipment, it is necessary to sterilize the equipment, especially medical equipment. Commonly used sterilization methods generally include thermal sterilization and moist heat sterilization. Moist heat sterilization generally uses saturated steam sterilization, which has better penetration and can achieve good sterilization effect. In the prior art, moist heat sterilization requires the use of a pressure steam sterilizer, which mainly includes a sterilization chamber and a sterilization door. Among them, in order to maintain a sterile environment in the sterilization chamber, it is necessary to ensure the sealing between the sterilization chamber and the sterilization door.

[0003] When sterilizing instruments by moist heat sterilization, the sterilization procedure generally includes multiple stages such as vacuum, heating, sterilization, exhaust, and drying. The internal pressure of the sterilization chamber usually changes at different stages, causing the pressure in the sterilization chamber to change between positive pressure and negative pressure, which greatly affects the sealing between the sterilization chamber and the sterilization door, and easily causes the sealing structure to age quickly and generate noise. Therefore, how to improve the sealing effect between the sterilization door and the sterilization chamber and reduce the noise generation has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present utility model is to provide a door cover assembly and a sterilization device for improving the sealing effect and reducing the noise generation.

[0005] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions. The utility model provides a door cover assembly, including:

[0006] Door frame structure;

[0007] A door body, wherein a sealing structure is provided on the door body;

[0008] A first connecting member, the first connecting member is connected to the door frame structure, the first connecting member is provided with a mounting channel and a mounting hole provided at one end of the mounting channel, and the aperture of the mounting hole gradually increases along a first direction;

[0009] A second connecting member, the second connecting member is movably inserted into the installation channel and passes through the installation hole to connect with the door body;

[0010] An elastic structure is sleeved on the second connecting member and placed in the installation channel, and the elastic structure is connected to the first connecting member and the second connecting member respectively. The elastic structure enables the first connecting member and the second connecting member to be connected in a floating manner.

[0011] In a preferred embodiment of the present invention, the first connecting member includes a barrel shaft, a hollow inner cavity of the barrel shaft forms the installation channel, one end of the barrel shaft is detachably connected to the door frame structure, and the installation hole is arranged at the other end of the barrel shaft.

[0012] In a preferred embodiment of the present invention, the end surface of the door body facing the first connecting member is a first curved surface, the end surface of the first connecting member facing the door body is a second curved surface, and the curvature radius of the second curved surface is smaller than the curvature radius of the first curved surface.

[0013] In a preferred embodiment of the present invention, the second connecting member includes a locking bolt, which is inserted into the mounting channel, and one end of the locking bolt passes through the mounting hole and is detachably connected to the door body.

[0014] In a preferred embodiment of the present invention, the elastic structure includes a spring, which is sleeved on the second connecting member and placed in the installation channel, and the two ends of the spring are respectively abutted against the first connecting member and the second connecting member. The spring can make the first connecting member and the second connecting member float and connect.

[0015] In a preferred embodiment of the present invention, the first direction is: from the door frame structure to the door body, the aperture of the mounting hole gradually increases; or the first direction is: from the door body to the door frame structure, the aperture of the mounting hole gradually increases.

[0016] In a preferred embodiment of the present invention, the mounting hole is a tapered hole, and the angle between any two relative generatrixes on the inner wall of the mounting hole is set to be a first angle.

[0017] In a preferred embodiment of the present invention, the first angle is 8° to 10°.

[0018] In a preferred embodiment of the present invention, the door cover assembly further comprises a third connecting member, which is adjustably arranged on the door frame structure, and one end of the third connecting member can abut against the outer wall of the first connecting member.

[0019] In a preferred embodiment of the present invention, the third connecting member includes a limiting bolt, the limiting bolt is threadably connected to the door frame structure, and one end of the limiting bolt can abut against the outer wall of the first connecting member.

[0020] In a preferred embodiment of the present invention, the sealing structure includes a sealing ring, which includes an annular body, and a first sealing portion and a second sealing portion spaced apart on the annular body, the annular body is arranged on the side edge of the door body, the first sealing portion can abut against the door body, and the second sealing portion is used to abut against a sealing port of the sealed sterilization chamber.

[0021] In a preferred embodiment of the present invention, the side edge of the door body is folded to one side to form a flange, the annular body is clamped in the flange, and the sealing structure also includes a plurality of pressure regulating grooves arranged on the annular body by a spacer ring, and the two ends of the pressure regulating groove are relatively arranged on both sides of the annular body, and one end of the pressure regulating groove extends to the outside of the flange.

[0022] In a preferred embodiment of the present invention, at least one extended sealing groove is provided on an end surface of a terminal end of the second sealing portion away from the first sealing portion, and the extended sealing groove is arranged on the second sealing portion along the circumference of the second sealing portion.

[0023] The utility model also provides a sterilization device, comprising a sterilization chamber and the aforementioned door cover assembly, wherein the sterilization chamber has a sealing opening, the door cover assembly is openably arranged on the sterilization chamber, and the door cover assembly can be used to seal the sealing opening.

[0024] The technical solution of the utility model has the following significant beneficial effects:

[0025] When the door cover assembly of the utility model is used, the door frame structure is hingedly installed on the sterilization chamber, and the sealing opening of the sterilization chamber can be sealed by the door body and the sealing structure, thereby helping to maintain the sealing state in the sterilization chamber. In addition, the door body and the door frame structure can be connected in a floating manner through the cooperation of the first connecting member, the second connecting member and the elastic structure, and the door body can be supported by the door frame structure. At the same time, the floating connection makes the door body have a certain degree of freedom, which can adapt to the changes in air pressure in the sterilization chamber and achieve a better sealing effect.

[0026] Specifically, when the sterilization chamber is in a negative pressure state, the door body tends to move into the sterilization chamber. Since the door frame structure is connected to the door body in a floating manner, the second connecting member can overcome the elastic force of the elastic structure to adjust the relative position of the door body, so that the door body and the sealing structure can be better pressed against the sealing port, thereby improving the sealing effect.

[0027] When the sterilization chamber is under high pressure, the door body tends to move outside the sterilization chamber, and the second connecting member and the elastic structure can move outward a certain distance until the first connecting member abuts against the door body. By adjusting the relative position of the door body, the service life of the sealing structure is improved.

[0028] Furthermore, a mounting hole is provided on the first connecting member, and the second connecting member is inserted into the mounting hole. Due to the influence of the air pressure change in the sterilization chamber, the position between the second connecting member and the mounting hole will change. In addition, the elastic structure will be continuously compressed and released under the action of the second connecting member, and there is a dead point position in the elastic structure during the deformation process, that is, the position when the elastic structure is compressed to a certain position and remains motionless. When the sterilization chamber is in a high pressure state, it is easy to cause the elastic structure to rebound suddenly. When the second connecting member rebounds with the elastic structure, the second connecting member has the problem of offset axis, and then the second connecting member and the inner wall of the mounting hole are prone to friction and noise.

[0029] The mounting hole in the prior art usually has a single aperture size, resulting in a large contact area between the inner wall of the mounting hole and the second connecting member, thereby generating a large friction noise. In the present invention, the aperture of the mounting hole is gradually increased along the first direction, so that the mounting hole has a relatively large end and a small end, and the mounting hole has a smaller contact area when mating with the second connecting member, thereby significantly reducing the friction noise between the second connecting member and the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0032] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of the door cover assembly of the utility model;

[0033] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of the door cover assembly of the utility model;

[0034] Figure 3 A side cross-sectional view of an embodiment of the door body and the sealing structure of the utility model;

[0035] Figure 4 A side cross-sectional view of an embodiment of the sealing structure of the utility model;

[0036] Figure 5 It is a side cross-sectional view of an embodiment of the barrel shaft of the utility model;

[0037] Figure 6 It is a side cross-sectional view of another embodiment of the barrel shaft of the utility model;

[0038] Figure 7 It is a schematic cross-sectional structure diagram of an embodiment of the sterilization device of the utility model;

[0039] Figure 8 A partial cross-sectional view of an embodiment of the sealing structure of the utility model;

[0040] Fig. 9 It is a side structural schematic diagram of an embodiment of the sealing structure of the utility model.

[0041] Reference numerals of the above drawings:

[0042] 10. Sterilization chamber; 11. Sealing port;

[0043] 100, door frame structure; 110, fixing block; 111, first screw hole; 112, third screw hole; 120, guide column; 130, support member group;

[0044] 200, door body; 210, first curved surface; 220, second screw hole; 230, flange;

[0045] 300, sealing structure; 310, annular body; 320, first sealing part; 330, second sealing part; 331, extended sealing groove; 340, pressure regulating groove;

[0046] 400, first connecting member; 410, barrel shaft; 411, mounting channel; 412, mounting hole; 420, second arc surface;

[0047] 500, second connecting member; 510, locking bolt;

[0048] 600, elastic structure; 610, spring;

[0049] 700, third connecting member; 710, limiting bolt;

[0050] 800. Gasket. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] Implementation Method 1

[0053] Please refer to Figure 1 and Figure 2 As shown, a door cover assembly is provided in an embodiment of the utility model, which includes a door frame structure 100, a door body 200, a first connecting member 400, a second connecting member 500 and an elastic structure 600, wherein a sealing structure 300 is provided on the door body 200; the first connecting member 400 is connected to the door frame structure 100, and an installation channel 411 and a installation hole 412 are provided in the first connecting member 400, and the aperture of the installation hole 412 gradually increases along a first direction; the second connecting member 500 can be movably inserted in the installation channel 411, and passes through the installation hole 412 to connect to the door body 200; the elastic structure 600 is sleeved on the second connecting member 500 and placed in the installation channel 411, and the elastic structure 600 is respectively connected to the first connecting member 400 and the second connecting member 500, that is, the first connecting member 400 and the second connecting member 500 can be floatingly connected through the elastic structure 600.

[0054] On the whole, when the door cover assembly is used, the door frame structure 100 is hingedly mounted on the sterilization chamber 10, and the sealing port 11 of the sterilization chamber 10 can be sealed by the door body 200 and the sealing structure 300, thereby helping to maintain the sealing state in the sterilization chamber 10. In addition, the door body 200 and the door frame structure 100 can be connected in a floating manner by cooperating with the first connecting member 400, the second connecting member 500 and the elastic structure 600, and the door body 200 can be supported by the door frame structure 100. At the same time, the floating connection allows the door body 200 to have a certain degree of freedom, which can adapt to the changes in air pressure in the sterilization chamber 10, and achieves a better sealing effect.

[0055] Specifically, when the sterilization chamber 10 is in a negative pressure state, the door body 200 tends to move into the sterilization chamber 10. Since the door frame structure 100 and the door body 200 are floatingly connected, the second connecting member 500 can overcome the elastic force of the elastic structure 600 to adjust the relative position of the door body 200, so that the door body 200 and the sealing structure 300 can be better pressed on the sealing port 11, thereby improving the sealing effect.

[0056] When the sterilization chamber 10 is under high pressure, the door body 200 tends to move out of the sterilization chamber 10, and the second connecting member 500 and the elastic structure 600 can move outward by a certain distance until the first connecting member 400 abuts against the door body 200. By adjusting the relative position of the door body 200, the service life of the sealing structure 300 is improved.

[0057] Furthermore, a mounting hole 412 is provided on the first connecting member 400, and the second connecting member 500 is inserted into the mounting hole 412. Due to the influence of the air pressure change in the sterilization chamber 10, the position between the second connecting member 500 and the mounting hole 412 will change. In addition, the elastic structure 600 will be continuously compressed and released under the action of the second connecting member 500, and the elastic structure 600 has a dead point position during the deformation process, that is, the position when the elastic structure 600 is compressed to a certain position and remains motionless. When the sterilization chamber 10 is in a high pressure state, it is easy to cause the elastic structure 600 to rebound suddenly. When the second connecting member 500 rebounds with the elastic structure 600, the second connecting member 500 has the problem of offset axis, and then the second connecting member 500 and the inner wall of the mounting hole 412 are prone to friction and noise.

[0058] The mounting hole 412 in the prior art usually has a single aperture size, which results in surface contact between the inner wall of the mounting hole 412 and the second connector 500, that is, a large contact area, thereby generating large friction noise. In this embodiment, the aperture of the mounting hole 412 is gradually increased along the first direction, so that the mounting hole 412 has a relatively large end and a small end. When the mounting hole 412 and the second connector 500 are matched, there is a line contact, that is, a small contact area, thereby significantly reducing the friction noise between the second connector 500 and the mounting hole 412.

[0059] In the implementation of the utility model, the designer can adjust the specific structure of the door frame structure 100 according to the use requirements, and no specific restrictions are made here. Preferably, the door frame structure 100 includes a fixed block 110, a guide column 120 and a support member group 130, and the fixed block 110 and the guide column 120 are fixedly arranged on the support member group 130, and the guide column 120 can be rotatably connected with the sterilization chamber 10, so that the door frame structure 100 can perform a closing action with the guide column 120 as the axis.

[0060] In the implementation mode of the present utility model, Figure 1 and Figure 2 In the illustrated embodiment, the first connecting member 400 includes a barrel shaft 410 , a hollow inner cavity of the barrel shaft 410 forms an installation channel 411 , one end of the barrel shaft 410 is detachably connected to the door frame structure 100 , and a mounting hole 412 is provided at the other end of the barrel shaft 410 .

[0061] Specifically, an opening is provided at one end of the barrel shaft 410, and a mounting hole 412 is provided at the other end of the barrel shaft 410. The aperture of the mounting hole 412 is smaller than the aperture of the opening, so that the second connecting member 500 and the elastic structure 600 can be inserted into the barrel shaft 410 through the opening.

[0062] Furthermore, the barrel shaft 410 is threadedly connected to the door frame structure 100. Specifically, the outer wall of the barrel shaft 410 is provided with an external thread, and the door frame structure 100 is provided with a first screw hole 111, so that the barrel shaft 410 can be threadedly connected to the door frame structure 100.

[0063] Of course, in other feasible embodiments, designers can adjust the detachable connection method between the barrel shaft 410 and the door frame structure 100 according to usage requirements, and no specific restrictions are made here.

[0064] In the implementation mode of the present utility model, Figure 1 and Figure 3 In the embodiment shown, the end surface of the door body 200 facing the first connecting member 400 is a first curved surface 210 , and the end surface of the first connecting member 400 facing the door body 200 is a second curved surface 420 , and the curvature radius of the second curved surface 420 is smaller than the curvature radius of the first curved surface 210 .

[0065] By controlling the curvature radius of the first curved surface 210 and the second curved surface 420, when the first curved surface 210 on the door body 200 abuts against the second curved surface 420 on the first connecting member 400, the door body 200 can rotate around the second curved surface 420 with the first connecting member 400 as the central axis, thereby increasing the adjustment range of the door body 200, so that the door body 200 and the sealing structure 300 can better seal the sealing port 11 of the sterilization chamber 10.

[0066] Furthermore, by providing the door body 200 with a certain adjustment margin, the door body 200 and the sealing assembly can better adapt to the changes in air pressure within the sterilization chamber 10, and can also compensate for the precision errors during manufacturing and installation through subsequent adjustments; designers can adjust the curvature radii of the first curved surface 210 and the second curved surface 420 according to usage requirements, and no specific numerical value is limited here.

[0067] In the implementation mode of the present utility model, Figure 1 and Figure 2 In the illustrated embodiment, the second connecting member 500 includes a locking bolt 510 , which is inserted into the mounting channel 411 , and one end of the locking bolt 510 passes through the mounting hole 412 and is detachably connected to the door body 200 .

[0068] Specifically, one end of the locking bolt 510 has a bolt head, and the elastic structure 600 is limited between the bolt head and the outer periphery of the mounting hole 412 , so that the door body 200 can be floatingly connected to the door frame structure 100 with the help of the elastic structure 600 .

[0069] A protruding connection portion is provided on the door body 200 , and a second screw hole 220 is provided on the connection portion, so that the locking bolt 510 can be threadedly connected to the door body 200 .

[0070] Furthermore, in order to reduce the wear of the locking bolt 510 on the elastic structure 600 , at least one gasket 800 is sleeved on the locking bolt 510 , and the gasket 800 is placed between the bolt head and the elastic structure 600 .

[0071] In the implementation mode of the present utility model, Figure 1 and Figure 2 In the illustrated embodiment, the elastic structure 600 includes a spring 610, which is sleeved on the second connecting member 500 and placed in the installation channel 411, and the two ends of the spring 610 are respectively abutted against the first connecting member 400 and the second connecting member 500, that is, the first connecting member 400 and the second connecting member 500 can be floated and connected through the spring 610.

[0072] Specifically, by adjusting the connection position between the locking bolt 510 and the first screw hole 111 , the spring 610 can be compressed by the locking bolt 510 .

[0073] Furthermore, as the locking bolt 510 is screwed into the first screw hole 111 , the barrel shaft 410 can be pressed against the door body 200 under the thrust of the spring 610 , thereby making the first curved surface 210 and the second curved surface 420 contact each other.

[0074] Of course, in other feasible embodiments, designers can adjust the specific structure of the elastic structure 600 according to usage requirements, such as replacing the spring 610 with an elastic block, etc., and no specific limitation is made here.

[0075] In a feasible embodiment of the present utility model, if Figure 5 and Figure 6 In the illustrated embodiment, the first direction is from the door frame structure 100 to the door body 200 , and the diameter of the mounting hole 412 gradually increases.

[0076] By gradually increasing the diameter of the mounting hole 412, the two ends of the mounting hole 412 constitute a small end and a large end respectively, so that when the second connecting member 500 is inserted into the mounting hole 412, the contact area between the second connecting member 500 and the inner wall of the mounting hole 412 is reduced, which helps to reduce the friction noise between the second connecting member 500 and the mounting hole 412.

[0077] The designer can adjust the aperture size of the mounting hole 412 according to the use requirements, and no specific limitation is made here. The gradual increase can be uniform or non-uniform, and no specific limitation is made here.

[0078] In another feasible embodiment of the present utility model, as Figure 5 and Figure 6 In the illustrated embodiment, the first direction is from the door body 200 to the door frame structure 100 , and the diameter of the mounting hole 412 gradually increases.

[0079] Of course, in other feasible embodiments, designers can adjust the specific direction of the first direction according to usage requirements, and no specific limitation is made here.

[0080] In the embodiment of the present utility model, the mounting hole 412 is a tapered hole, and the angle between any two relative generatrixes on the inner wall of the mounting hole 412 is set to be a first angle.

[0081] By controlling the size of the first angle, on the one hand, it helps to maintain the stability of the second connecting member 500 when inserted into the mounting hole 412, and avoids large shaking of the second connecting member 500 in the mounting hole 412; on the other hand, it also enables the second connecting member 500 to be in linear contact with the mounting hole 412, thereby reducing the contact area between the second connecting member 500 and the inner wall of the mounting hole 412, which is beneficial to reduce the generation of noise.

[0082] The axis of the tapered hole can be arranged in a colinear manner with the axis of the barrel shaft 410. The designer can adjust the value of the first angle according to the use requirements, and no specific limitation is made here. Preferably, the first angle is 8° to 10°. In the embodiment of the utility model, if Figure 1 and Figure 2 In the illustrated embodiment, the door cover assembly further includes a third connecting member 700 , which is adjustably disposed on the door frame structure 100 , and one end of the third connecting member 700 can abut against an outer wall of the first connecting member 400 .

[0083] By making one end of the third connecting member 700 abut against the outer wall of the first connecting member 400, the third connecting member 700 can apply a certain pressure to the first connecting member 400 to lock the first connecting member 400, thereby avoiding the problem of rotation or movement of the barrel shaft 410 during use and improving the installation stability of the barrel shaft 410.

[0084] Specifically, the third connecting member 700 includes a limiting bolt 710 , which is threadedly connected to the door frame structure 100 , and one end of the limiting bolt 710 can abut against the outer wall of the first connecting member 400 .

[0085] Among them, a third screw hole 112 is provided on the door frame structure 100, and the third screw hole 112 can be set perpendicular to the barrel axis 410, so that when the limiting bolt 710 is threadedly connected in the third screw hole 112, one end of the limiting bolt 710 can vertically abut against the outer wall of the barrel axis 410.

[0086] When the sealing structure 300 is aged, the locking effect of the limit bolt 710 on the barrel shaft 410 can be released. At this time, the axial position of the barrel shaft 410 and / or the rotation position of the door body 200 along the second arc surface 420 on the barrel shaft 410 can be adjusted, and then the relative position of the sealing structure 300 can be adjusted so that the sealing structure 300 can be in a better sealing position, thereby maintaining the sealing stability and extending the service life of the sealing structure 300.

[0087] In the implementation mode of the present utility model, Figure 1 and Figure 4 In the illustrated embodiment, the sealing structure 300 includes a sealing ring, which includes an annular body 310, and a first sealing portion 320 and a second sealing portion 330 spaced apart on the annular body 310. The annular body 310 is disposed on the side edge of the door body 200. The first sealing portion 320 can abut against the door body 200, and the second sealing portion 330 is used to abut against the sealing port 11 of the sealed sterilization chamber 10.

[0088] Specifically, a clamping structure is provided at the edge of the door body 200, and the annular body 310 is clamped in the clamping structure. Designers can adjust the specific structure of the clamping structure according to the use requirements, and no specific restrictions are imposed here. For example, the edge of the door body 200 is bent to form an annular clamping groove, and the annular body 310 can be clamped in the clamping groove.

[0089] Of course, in other feasible embodiments, designers can adjust the specific structure of the sealing structure 300 according to usage requirements, and no specific limitation is made here.

[0090] In the implementation mode of the present utility model, Figure 3 and Figure 8 In the embodiment shown, the side edge of the door body 200 is folded to one side to form a flange 230, and the annular main body 310 is clamped in the flange 230. The sealing structure 300 also includes a plurality of pressure regulating grooves 340 arranged on the annular main body 310 by a spacer ring, and the two ends of the pressure regulating grooves 340 are relatively arranged on both sides of the annular main body 310, and one end of the pressure regulating grooves 340 extends to the outside of the flange 230.

[0091] By providing the pressure regulating groove 340 on the annular body 310, the two sides of the annular body 310 can be connected by the pressure regulating groove 340. When the annular body 310 is clamped in the flange 230, the pressure regulating groove 340 can form a channel for gas to enter and exit.

[0092] During the sterilization operation, no matter the sealing ring is subjected to positive pressure or negative pressure, the pressure on both sides of the sealing ring can be adaptively adjusted by means of the pressure regulating groove 340 to ensure that the pressure on both sides is equal, so that the sealing ring can be stably maintained in the flange 230, thereby achieving a better sealing effect.

[0093] Designers can adjust the number of the voltage regulating grooves 340 according to usage requirements. For example, the number of the voltage regulating grooves 340 can be two, three or more, and no specific limitation is made here.

[0094] In the implementation mode of the present utility model, Figure 8 and Fig. 9 In the illustrated embodiment, at least one extended sealing groove 331 is provided on an end surface of the second sealing portion 330 away from the first sealing portion 320 , and the extended sealing groove 331 is arranged on the second sealing portion 330 along the circumference of the second sealing portion 330 .

[0095] By arranging the extended sealing groove 331 on the end face of the second sealing part 330 away from the first sealing part 320, when the pressure in the sterilization chamber 10 changes continuously, the extended sealing groove 331 on the second sealing part 330 can be better pressed onto the sealing port 11 of the sterilization chamber 10, thereby achieving a better sealing effect.

[0096] Furthermore, the side wall of the extended sealing groove 331 away from the annular body 310 may be open, which is not specifically limited here. In addition, a plurality of extended sealing grooves 331 may be concentrically arranged, and each extended sealing groove 331 has a different diameter.

[0097] Through the coordinated cooperation of the multiple extended sealing grooves 331 , the multiple extended sealing grooves 331 can be pressed onto the sealing port 11 of the sterilization chamber 10 to form a multi-pass seal, thereby better meeting the sealing requirements under different pressures.

[0098] Of course, in other feasible embodiments, designers can adjust the specific structure and number of the extended sealing grooves 331 according to usage requirements, and no specific restrictions are made here.

[0099] Implementation Method 2

[0100] Please refer to Figure 1 and Figure 7 As shown, a sterilization device is provided in an embodiment of the utility model, which includes a sterilization chamber 10 and the door cover assembly described in the first embodiment. The sterilization chamber 10 has a sealing opening 11, and the door cover assembly is openably arranged on the sterilization chamber 10, and the door cover assembly can be used to seal the sealing opening 11.

[0101] The specific structure, working principle and beneficial effects of the door cover assembly are the same as those described in the first embodiment, and will not be repeated here. The sterilization device can improve the sealing effect between the door cover assembly and the sterilization chamber 10 and reduce noise generation by using the door cover assembly in the first embodiment, thereby improving the user experience.

[0102] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0103] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A door cover assembly, characterized in that: include: Door frame structure; A door body, wherein a sealing structure is provided on the door body; A first connecting member, the first connecting member is connected to the door frame structure, the first connecting member is provided with a mounting channel and a mounting hole provided at one end of the mounting channel, and the aperture of the mounting hole gradually increases along a first direction; A second connecting member, the second connecting member is movably inserted into the installation channel and passes through the installation hole to connect with the door body; An elastic structure is sleeved on the second connecting member and placed in the installation channel, and the elastic structure is connected to the first connecting member and the second connecting member respectively.

2. The door cover assembly according to claim 1, characterized in that: The first connecting member includes a barrel shaft, a hollow inner cavity of the barrel shaft forms the installation channel, one end of the barrel shaft is detachably connected to the door frame structure, and the installation hole is arranged at the other end of the barrel shaft.

3. The door cover assembly according to claim 1 or 2, characterized in that: The end surface of the door body facing the first connecting member is a first curved surface, and the end surface of the first connecting member facing the door body is a second curved surface, and the curvature radius of the second curved surface is smaller than the curvature radius of the first curved surface.

4. The door cover assembly according to claim 1, characterized in that: The second connecting member includes a locking bolt, which is inserted into the installation channel. One end of the locking bolt passes through the installation hole and is detachably connected to the door body.

5. The door cover assembly according to claim 1, characterized in that: The elastic structure comprises a spring, which is sleeved on the second connecting member and placed in the installation channel, and two ends of the spring are respectively abutted against the first connecting member and the second connecting member.

6. The door cover assembly according to claim 1, characterized in that: The first direction is: from the door frame structure to the door body, the aperture of the mounting hole gradually increases; or The first direction is: from the door body to the door frame structure, the aperture of the mounting hole gradually increases.

7. The door cover assembly according to claim 6, characterized in that: The mounting hole is a tapered hole, and the angle between any two relative generatrixes on the inner wall of the mounting hole is set to be a first angle.

8. The door cover assembly according to claim 7, characterized in that: The first angle is between 8° and 10°.

9. The door cover assembly according to claim 2, characterized in that: The door cover assembly also includes a third connecting member, which is adjustably arranged on the door frame structure, and one end of the third connecting member can abut against the outer wall of the first connecting member.

10. The door cover assembly according to claim 9, characterized in that: The third connecting member includes a limiting bolt, which is threadably connected to the door frame structure, and one end of the limiting bolt can abut against the outer wall of the first connecting member.

11. The door cover assembly according to claim 1, characterized in that: The sealing structure includes a sealing ring, which includes an annular body, and a first sealing portion and a second sealing portion spaced apart on the annular body. The annular body is arranged on the side edge of the door body, the first sealing portion can abut against the door body, and the second sealing portion is used to abut against a sealing port of the sealed sterilization chamber.

12. The door cover assembly according to claim 11, characterized in that: The side edge of the door body is folded to one side to form a flange, and the annular body is clamped in the flange. The sealing structure also includes a plurality of pressure regulating grooves arranged on the annular body by a spacer ring, and the two ends of the pressure regulating groove are relatively arranged on both sides of the annular body, and one end of the pressure regulating groove extends to the outside of the flange.

13. The door cover assembly according to claim 11, characterized in that: At least one extended sealing groove is arranged on an end surface of a terminal end of the second sealing portion away from the first sealing portion, and the extended sealing groove is arranged on the second sealing portion along the circumference of the second sealing portion.

14. A sterilization device, characterized in that: It comprises a sterilization chamber and a door cover assembly as claimed in any one of claims 1 to 13, wherein the sterilization chamber has a sealing opening, the door cover assembly is openably arranged on the sterilization chamber, and the door cover assembly can be used to seal the sealing opening.

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