Bearing mold for solid enzyme

Abstract

The utility model relates to the field of culture vessels, and provides a bearing mold for solid enzyme. The bearing mold for the solid enzyme comprises a bearing body, a mounting table is arranged on the bearing body, a film used for wrapping the reaction enzyme is arranged on the mounting table, and a flow guide groove is formed in the mounting table in the circumferential direction of the mounting table; and the cover body is detachably mounted on the bearing body, and a puncturing structure is arranged at the position, corresponding to the film, of the cover body. The bearing mold for the solid enzyme can accurately control the starting time and the reaction environment of the enzyme reaction, so that the reaction efficiency is improved, and the controllability of the reaction is ensured; the operation process is simplified; after the reaction is finished, the mold can be easily disassembled for cleaning and maintenance, so that the service life of the mold is prolonged, and the quality of subsequent reaction is ensured; the enzyme and the external environment are effectively isolated, and pollution and inactivation are prevented, so that the stability and the reliability of the reaction are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of culture vessels and provides a bearing mold for solid enzymes. Background Art

[0002] Existing enzyme reaction systems primarily utilize culture dishes or plastic films as carrier media, which present numerous drawbacks. These traditional packaging methods only provide basic packaging functions and fail to effectively address the challenges inherent in enzyme reaction systems. For example, while culture dishes can accommodate reactants, they lack precise preparation and control, and their large size makes them inconvenient for automated operation and large-scale production. Plastic film carriers are more prone to leakage, compromising reaction safety, and are difficult to clean and reuse, hindering widespread application.

[0003] Existing packaging molds for enzyme reaction systems primarily focus on packaging material functionality, but have yet to effectively address key issues such as stability and leakage. Enzyme activity is affected by a variety of factors, including temperature, pH, and microenvironmental changes. Traditional packaging methods lack effective regulation, leading to decreased enzyme activity and low reaction efficiency. Furthermore, traditional packaging methods lack sealing, which can easily lead to enzyme leakage, compromising reaction accuracy and safety.

[0004] Therefore, there is an urgent need to develop a new type of enzyme reaction system carrier mold that can effectively solve the problems existing in the existing system, improve the stability, safety, controllability and reusability of the enzyme reaction system, and thus promote the promotion and application of enzyme reaction technology. Utility Model Content

[0005] The embodiment of the present utility model provides a supporting mold for solid-state enzymes, so as to solve the defects of the related art that the reaction process of solid-state enzymes is uncontrollable and has large errors.

[0006] The present invention provides a supporting mold for a solid enzyme, comprising:

[0007] A carrier, wherein a mounting platform is provided on the carrier, a film for wrapping the reaction enzyme is provided on the mounting platform, and a guide groove is formed on the mounting platform along the circumference of the mounting platform;

[0008] The cover body is detachably mounted on the carrier body, and a puncture structure is provided at a position on the cover body corresponding to the film.

[0009] According to an embodiment of the present invention, a bearing groove is formed on the bearing body, and the mounting platform is formed in the bearing groove and extends in a direction away from the bottom of the bearing groove.

[0010] According to one embodiment of the present invention, a mounting position is provided on the mounting platform, and the reaction enzyme is provided at the mounting position.

[0011] According to an embodiment of the present invention, two ends of the guide groove are connected to the installation position and the bearing groove.

[0012] According to an embodiment of the present invention, a first annular protrusion is provided on the edge of the carrier along the circumference of the carrier.

[0013] According to an embodiment of the present invention, a second annular protrusion is provided on the edge of the cover body along the circumference of the cover body.

[0014] According to one embodiment of the present invention, the cross-sectional area of ​​the puncture structure gradually decreases from the bottom of the cover body to the top of the puncture structure.

[0015] According to an embodiment of the present invention, the carrier is a transparent carrier and / or the cover is a transparent cover.

[0016] According to one embodiment of the present invention, the carrier and the cover are circular, and the diameters of the carrier and the cover are at least 50 mm.

[0017] According to an embodiment of the present invention, when the cover is installed on the carrier, the distance between the cover and the carrier is 17 mm.

[0018] According to the supporting mold for solid enzymes provided by the embodiment of the present invention, through the precisely designed guide groove and the controllable puncture structure, the present invention can accurately control the start-up timing and reaction environment of the enzyme reaction, thereby improving the reaction efficiency and ensuring the controllability of the reaction. The user can start the enzyme reaction without complicated operating steps, and only needs to simply install the cover in place and trigger the puncture structure, which greatly simplifies the operating process. The detachable cover design allows the user to easily disassemble the mold for cleaning and maintenance after the reaction is completed, extending the service life of the mold and ensuring the quality of subsequent reactions. By designing a thin film that wraps the reaction enzyme, the enzyme is effectively isolated from the external environment, preventing contamination and inactivation, thereby enhancing the stability and reliability of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic three-dimensional diagram of the carrier provided by the utility model.

[0021] Figure 2 It is a schematic three-dimensional diagram of the cover provided by the utility model.

[0022] Figure 3 This is a schematic test diagram of the support mold for solid enzymes provided by the present invention.

[0023] Reference numerals:

[0024] 100. Carrier; 102. Mounting platform; 104. Film; 106. Guide groove; 108. Cover; 110. Puncture structure; 112. Carrier groove; 114. First annular protrusion; 116. Second annular protrusion. DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] like Figures 1 to 3 As shown, the embodiment of the present invention provides a supporting mold for a solid enzyme, comprising:

[0027] A carrier 100 is provided with a mounting platform 102 on the carrier 100. A film 104 for wrapping the reaction enzyme is provided on the mounting platform 102. A guide groove 106 is formed on the mounting platform 102 along the circumference of the mounting platform 102.

[0028] The cover 108 is detachably mounted on the carrier 100 , and a puncture structure 110 is provided on the cover 108 at a position corresponding to the film 104 .

[0029] According to the supporting mold for solid enzymes provided by the embodiment of the present invention, through the precisely designed guide groove 106 and the controllable puncture structure 110, the present invention can accurately control the start-up timing and reaction environment of the enzyme reaction, thereby improving the reaction efficiency and ensuring the controllability of the reaction. The user can start the enzyme reaction without complicated operating steps, and only needs to simply install the cover 108 in place and trigger the puncture structure 110, which greatly simplifies the operating process. The detachable cover 108 design allows the user to easily disassemble the mold for cleaning and maintenance after the reaction is completed, extending the service life of the mold and ensuring the quality of subsequent reactions. By designing the film 104 that wraps the reaction enzyme, the enzyme is effectively isolated from the external environment, preventing contamination and inactivation, thereby enhancing the stability and reliability of the reaction.

[0030] Please continue to see Figures 1 to 3 The embodiment of the present invention provides a carrier mold for solid enzymes, which aims to improve the efficiency and controllability of enzyme reactions while facilitating operation, cleaning and maintenance.

[0031] The carrier 100 serves as the basic structure of the entire mold and is designed with a mounting platform 102. The mounting platform 102 is used to stably support and fix the solid enzyme or reaction enzyme to be placed later.

[0032] A film 104 is specially provided on the mounting platform 102 for wrapping the reaction enzyme. This film 104 can not only effectively isolate the enzyme from the external environment to prevent contamination and inactivation, but also maintain the stability and activity of the enzyme during the reaction.

[0033] A guide groove 106 is carefully designed along the circumference of the mounting platform 102. This design plays a key role in the reaction process. It can effectively collect and guide the liquid or waste liquid generated during the reaction, preventing it from overflowing or being retained inside the mold, thereby maintaining a clean and orderly reaction environment.

[0034] The cover 108 is designed to be detachably mounted on the carrier 100. This design facilitates the user to disassemble, clean and maintain the mold when not in use, and also facilitates the replacement or replenishment of the solid enzyme.

[0035] An innovative puncture structure 110 is located between the cover 108 and the film 104. This structure is used to initiate the enzyme reaction. With a simple operation, the user can cause the puncture structure 110 to penetrate the film 104, allowing the enzyme to contact the reactants and initiate the reaction. This approach not only simplifies the process but also improves the controllability and safety of the reaction.

[0036] According to an embodiment of the present invention, a carrying groove 112 is formed on the carrying body 100 , and the mounting platform 102 is formed in the carrying groove 112 and extends in a direction away from the bottom of the carrying groove 112 .

[0037] In one embodiment of the present invention, a carrying groove 112 is further designed on the carrying body 100 , and the mounting platform 102 is formed in the carrying groove 112 and extends in a direction away from the bottom of the carrying groove 112 .

[0038] The holding tank 112 is an important component of the holding body 100. Its shape and size are designed according to actual application requirements. The holding tank 112 provides a stable and limited space for placing and fixing the reaction system other than the enzyme.

[0039] The bottom of the loading tank 112 is relatively flat and is used to support the mounting platform 102 and the subsequent reaction system. At the same time, the sidewalls of the loading tank 112 also play a certain protective role to prevent the reaction system from displacement or leakage during the reaction process.

[0040] The mounting platform 102 is formed in the loading groove 112 and extends in a direction away from the bottom of the loading groove 112. This design enables the mounting platform 102 to stand firmly in the loading groove 112 while maintaining a certain height for subsequent operation and reaction.

[0041] A thin film 104 is placed on the mounting platform 102 to encapsulate the enzyme. This film 104 also serves to isolate and protect the solid enzyme. The shape and size of the mounting platform 102 are also carefully designed to ensure that the solid enzyme can be stably placed and fixed on the film 104.

[0042] By forming a loading groove 112 on the carrier 100 and arranging the mounting platform 102 therein, the stability of the solid-state enzyme during the reaction process can be significantly improved. The sidewalls of the loading groove 112 provide additional support for the mounting platform 102, preventing it from tilting or shaking during the reaction process. The design of the loading groove 112 makes the structure of the entire mold more compact and the space utilization more reasonable. It not only can stably place the solid-state enzyme, but also can effectively collect and guide the liquid or waste liquid generated during the reaction to prevent it from overflowing or being retained outside the mold. The design of the loading groove 112 and the mounting platform 102 makes it easier for users to place, fix and remove the solid-state enzyme during operation. At the same time, after the reaction is completed, users can also easily disassemble the mold for cleaning and maintenance. By optimizing the structural design of the carrier 100, the solid-state enzyme can participate in the reaction more stably, thereby improving the reaction efficiency. At the same time, the design of the guide groove 106 also ensures that the liquid or waste liquid generated during the reaction can be discharged in a timely manner, avoiding its interference and influence on the reaction process.

[0043] According to an embodiment of the present invention, a mounting position is provided on the mounting platform 102 , and the reaction enzyme is provided at the mounting position.

[0044] In one embodiment of the present invention, a mounting position is specially provided on the mounting platform 102. This design is intended to fix the reaction enzyme more accurately and stably, thereby optimizing the enzyme reaction process.

[0045] The mounting position is a key component on the mounting platform 102, and its shape, size and position are carefully designed according to the specific form of the reaction enzyme and the reaction requirements.

[0046] The mounting position may be in the form of a groove or the like to ensure that the reaction enzyme can be firmly placed and fixed on the mounting platform 102 to avoid displacement or falling off during the reaction process.

[0047] The reaction enzyme is carefully placed on the mounting position. Through the fixation of the mounting position, the reaction enzyme can maintain a stable posture to participate in the reaction.

[0048] At the same time, the design of the installation position also takes into account the contact area and contact method between the reaction enzyme and the reaction system to maximize the reaction efficiency.

[0049] The design of the mounting position enables the reaction enzyme to be firmly fixed on the mounting platform 102, avoids the displacement or falling off caused by factors such as vibration and impact during the reaction process, thereby improving the stability of the reaction. By accurately designing the mounting position, it is possible to ensure that the contact area between the reaction enzyme and the reactant is maximized, and at the same time optimize the contact mode so that the reactant can more fully contact and react with the reaction enzyme, thereby improving the reaction efficiency. The design of the mounting position enables the user to more conveniently place and fix the reaction enzyme during operation, and is also convenient for cleaning and maintenance work after the reaction is completed. The firm fixing method reduces the potential safety hazard caused by the reaction enzyme falling off or leaking during the reaction process, thereby improving the safety of the entire reaction process.

[0050] According to an embodiment of the present invention, two ends of the guide groove 106 communicate with the mounting position and the bearing groove 112 .

[0051] In one embodiment of the present invention, both ends of the guide groove 106 are designed to communicate with the mounting position and the bearing groove 112 .

[0052] The guide groove 106 is arranged along the circumference of the mounting platform 102, but its two ends are not closed, but are respectively connected to the mounting position and the bearing groove 112. This design allows the guide groove 106 to form an effective liquid flow path inside the mold.

[0053] One end of the guide groove 106 is connected to the installation position, which means that during the enzyme reaction process occurring at the installation position, the liquid of the reaction enzyme can be quickly guided to other positions through the guide groove 106, avoiding accumulation at the installation position.

[0054] The other end of the guide groove 106 is connected to the holding groove 112 , so that the liquid containing the enzyme guided by the guide groove 106 will eventually flow into the holding groove 112 , thereby avoiding pollution and waste caused by liquid overflow.

[0055] By promptly directing liquid generated during the reaction to the holding tank 112, this liquid is prevented from accumulating at the installation site, thereby reducing interference with the enzyme reaction and improving reaction efficiency. The design of the guide groove 106 helps maintain a clean and orderly installation site and surrounding environment. Liquid is quickly directed to the holding tank 112, minimizing its residence time within the mold and reducing the risk of contamination.

[0056] According to an embodiment of the present invention, a first annular protrusion 114 is provided on the edge of the carrier 100 along the circumference of the carrier 100 .

[0057] In one embodiment of the present invention, a first annular protrusion 114 is specially designed along the circumference of the carrier 100 at the edge of the carrier 100. This design is intended to enhance the structural strength of the carrier 100, improve the sealing performance and optimize the overall user experience.

[0058] First annular protrusion 114 is located at the edge of carrier 100 and extends along the entire circumference of carrier 100, forming a continuous annular structure. Its shape and size are designed according to specific application requirements to ensure both structural strength and ease of use during mold assembly. First annular protrusion 114 is made of the same material as carrier 100, ensuring a secure connection and overall consistency.

[0059] The design of the first annular protrusion 114 increases the edge thickness of the carrier 100, thereby enhancing its structural strength. This makes the carrier 100 more stable when subjected to external pressure or impact, making it less susceptible to deformation or damage. When the carrier 100 is used in conjunction with other components (such as the cover 108), the first annular protrusion 114 can serve as part of the sealing surface, forming a close contact with the mating component and effectively preventing liquid or gas leakage. This is particularly important for enzyme reactions that require a sealed reaction environment. The first annular protrusion 114 also serves as a positioning reference during assembly, helping users to more accurately assemble the carrier 100 with other components. It also limits displacement during assembly to a certain extent, ensuring accurate and stable assembly. The carefully designed first annular protrusion 114 not only enhances the overall aesthetics of the mold but also provides users with a more comfortable and smooth feel during operation, which helps to improve customer satisfaction and loyalty.

[0060] According to one embodiment of the present invention, a second annular protrusion 116 is provided on the edge of the cover body 108 along the circumference of the cover body 108 .

[0061] In one embodiment of the present invention, a second annular protrusion 116 is specially provided on the edge of the cover 108 along the circumference of the cover 108. This design is intended to further enhance the sealing performance, stability and operational convenience of the mold.

[0062] The second annular protrusion 116 is located on the edge of the cover 108 and extends along the entire circumference of the cover 108, forming an annular structure that is tightly integrated with the cover 108. Its shape and dimensions are carefully designed to ensure close contact with the first annular protrusion 114 (if present) or other mating components on the carrier 100, while avoiding excessive resistance or interference during assembly. The second annular protrusion 116 is made of the same material as the cover 108 to ensure a secure connection and overall consistency. Furthermore, the material selection must take into account its corrosion resistance, wear resistance, and adaptability to the reaction environment.

[0063] When the cover 108 is assembled with the carrier 100 or other mating parts, the second annular protrusion 116 can provide a more reliable sealing surface, effectively preventing liquid or gas leakage during the reaction process. This is crucial for enzyme reaction processes that require high sealing. The design of the second annular protrusion 116 increases the contact area of ​​the edge of the cover 108, thereby improving stability after assembly. This helps to reduce loosening or falling off due to vibration or impact during the reaction process. The second annular protrusion 116 can serve as a guide and positioning structure during assembly, helping users complete the assembly process more quickly and accurately. At the same time, it can also provide a certain amount of resistance during disassembly to prevent accidental falling off due to improper operation. The carefully designed second annular protrusion 116 not only improves the overall aesthetics of the mold, but also allows users to experience a smoother and more stable feel during operation. This helps to improve user satisfaction and user experience.

[0064] According to one embodiment of the present invention, the cross-sectional area of ​​the piercing structure 110 gradually decreases from the bottom of the cover 108 to the top of the piercing structure 110 .

[0065] In one embodiment of the present invention, as the cross-sectional area gradually decreases, the pressure on the tip of the piercing structure 110 gradually increases as it moves downward. This design is similar to the physical principle of a cone or wedge, so that under the same force, the tip can generate greater pressure, making it easier to pierce the film 104, allowing the enzyme covered by the film 104 to flow out.

[0066] The gradual reduction in cross-sectional area helps guide the puncture force to be more concentrated and efficient during the puncture process. It reduces energy loss during the puncture process, makes the puncture action faster and smoother, and improves the user experience.

[0067] The material of the puncture structure 110 needs to have good rigidity and toughness to ensure that it is not easy to break or deform during the puncture process. At the same time, the selection of the material should also consider its adaptability to the target material to avoid generating excessive debris or residue.

[0068] According to an embodiment of the present invention, the carrier 100 is a transparent carrier 100 and / or the cover 108 is a transparent cover 108 .

[0069] In one embodiment of the present invention, the carrier 100 is designed as a transparent carrier 100, or the cover 108 is designed as a transparent cover 108, or both are designed as transparent structures. This design primarily utilizes the properties of transparent materials (such as glass, transparent plastic, etc.) to allow light to pass through the carrier 100 and / or the cover 108, thereby allowing the user to directly observe the internal reaction process or the state of the contents without opening the mold.

[0070] The carrier 100 is made of a transparent material, so that its interior space is fully or partially visible to external light, which allows the user to directly observe the reaction process occurring inside the carrier 100, such as enzyme catalysis reaction, color change, etc.

[0071] The cover 108 is also made of a transparent material. In addition to sealing and protecting the interior of the carrier 100, it also allows the user to observe the interior of the carrier 100 through the cover 108. This design is particularly useful in scenarios where the reaction progress or the status of the contents needs to be regularly monitored.

[0072] The design of the transparent carrier 100 and / or cover 108 allows the user to directly observe the conditions inside the mold, obtaining the required information without having to open the mold. This improves operational convenience and efficiency, particularly in experiments that require frequent monitoring of reaction progress. For certain experiments that may produce harmful gases or explosive reactions, the design of the transparent carrier 100 and / or cover 108 allows the user to observe the experimental process from a safe distance, reducing the risk of direct contact with harmful substances. By observing the changes inside the mold, the user can more accurately judge the impact of reaction conditions on experimental results, thereby optimizing the experimental design and improving the accuracy and repeatability of the experiment. The transparent design makes the mold more aesthetically pleasing and intuitive, improving the user experience. At the same time, it also makes the experimental process more interesting and engaging, helping to stimulate the user's interest and curiosity in science. The design of the transparent carrier 100 and / or cover 108 makes this utility model applicable to a wider range of fields, such as biological experiments, chemical experiments, and food testing. These fields often require real-time monitoring and analysis of the reaction process, and the transparent design precisely meets this need.

[0073] According to one embodiment of the present invention, the carrier 100 and the cover 108 are circular, and the diameter of the carrier 100 and the cover 108 is at least 50 mm; when the cover 108 is installed on the carrier 100, the distance between the cover 108 and the carrier 100 is 17 mm.

[0074] In one embodiment of the present invention, both the carrier 100 and the cover 108 are designed to be circular. This circular design is not only aesthetically pleasing but also provides improved stability and sealing in many applications. The rounded edges lack sharp corners, reducing the risk of accidental scratches and facilitating integration with other circular components.

[0075] The diameter of the carrier 100 and lid 108 is at least 50 mm. This size design ensures sufficient space inside the mold to accommodate reactants, enzymes, or other substances to be processed. At the same time, the larger diameter also improves the mold's stability and load-bearing capacity, making it suitable for a wider range of experiments and application scenarios.

[0076] When the lid 108 is mounted on the carrier 100, the gap between the lid 108 and the carrier 100 is set at 17 mm. This gap is carefully calculated and optimized to ensure the optimal balance between mold sealing, ease of operation, and reaction efficiency. This appropriate gap prevents direct contact between the lid 108 and the carrier 100, which could cause wear or jamming, while also providing ample space for the reactants to mix and react.

[0077] The circular design and ample diameter increase the contact area between the carrier 100 and the lid 108, thereby improving the mold's sealing performance. This helps prevent liquid or gas leakage during the reaction, ensuring the accuracy and reliability of experimental results. The larger diameter and circular design provide the carrier 100 and lid 108 with greater stability, resisting external shock and vibration during the experiment. This helps protect the reactants inside the mold from external interference, ensuring the smooth progress of the experiment. The appropriate spacing between the lid 108 and the carrier 100 provides ample space for the reactants to mix and react. This helps accelerate the reaction speed and improve reaction efficiency, while reducing problems such as incomplete reactions or impure products caused by insufficient space. The circular design and appropriate size make the mold operation smoother and more comfortable. Users can easily open and close the mold, observe the reaction process, and collect the product. This design improves user experience and satisfaction. Due to its high sealing, stability, and reaction efficiency, the mold of this utility model is widely applicable in a variety of fields, including biological experiments, chemical experiments, and food testing. These fields often require precise control and analysis of the reaction process, and the mold design precisely meets these needs.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A supporting mold for solid enzyme, characterized in that: include: A carrier (100), wherein a mounting platform (102) is provided on the carrier (100), a film (104) for wrapping a reaction enzyme is provided on the mounting platform (102), and a guide groove (106) is formed on the mounting platform (102) along the circumference of the mounting platform (102); The cover body (108) is detachably mounted on the carrier body (100), and a puncture structure (110) is provided on the cover body (108) at a position corresponding to the film (104).

2. The supporting mold for solid enzyme according to claim 1, characterized in that: A bearing groove (112) is formed on the bearing body (100), and the mounting platform (102) is formed in the bearing groove (112) and extends in a direction away from the groove bottom of the bearing groove (112).

3. The supporting mold for solid enzyme according to claim 2, characterized in that: The mounting platform (102) is provided with a mounting position, and the reaction enzyme is arranged at the mounting position.

4. The supporting mold for solid enzyme according to claim 3, characterized in that: Both ends of the guide groove (106) are connected to the installation position and the bearing groove (112).

5. The supporting mold for solid enzyme according to any one of claims 1 to 4, characterized in that: A first annular protrusion (114) is provided on the edge of the carrier (100) along the circumference of the carrier (100).

6. The supporting mold for solid enzyme according to any one of claims 1 to 4, characterized in that: A second annular protrusion (116) is provided on the edge of the cover body (108) along the circumference of the cover body (108).

7. The supporting mold for solid enzyme according to any one of claims 1 to 4, characterized in that: The cross-sectional area of ​​the puncture structure (110) gradually decreases from the bottom of the cover body (108) to the top of the puncture structure (110).

8. The supporting mold for solid enzyme according to any one of claims 1 to 4, characterized in that: The carrier (100) is a transparent carrier (100) and / or the cover (108) is a transparent cover (108).

9. The supporting mold for solid enzyme according to any one of claims 1 to 4, characterized in that: The carrier (100) and the cover (108) are circular, and the diameters of the carrier (100) and the cover (108) are at least 50 mm.

10. The supporting mold for solid enzyme according to any one of claims 1 to 4, characterized in that: When the cover (108) is mounted on the carrier (100), the distance between the cover (108) and the carrier (100) is 17 mm.

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