Fixing assembly of screw cap type container and screw cap equipment

Abstract

The utility model relates to the technical field of cap screwing equipment, and provides a fixing assembly of a cap screwing type container and cap screwing equipment. The fixing assembly of the screw cap type container comprises a mounting part and a spiral spring, and the mounting part forms a mounting space; a spiral spring is arranged in the mounting space, the spiral spring is arranged in the extending direction of the mounting space, the spiral spring comprises a fixed end and a free end, the fixed end is fixed to the mounting part, and the free end is used for making contact with a container inserted into the spiral spring; and the container is held tightly along with the rotation of the container. According to the fixing assembly of the screw cap type container, when the container is inserted into the spiral spring and rotates relative to the installation part, the free end is driven, the spiral spring tightly holds the container, friction force for fixing the container is provided, and a screw cap corresponding to the container is conveniently screwed off or screwed up.

Description

Technical Field

[0001] The utility model relates to the technical field of screw-capping equipment, in particular to a fixing assembly of a screw-capping container and a screw-capping equipment. Background Art

[0002] Tubular containers are widely used to hold various solutions, such as reagents, and such containers are often equipped with screw caps as a sealing method. The screw cap and the container are connected by a precisely designed threaded structure. This design not only provides good sealing performance, but also facilitates the opening and closing of the container through a rotating operation. However, in automated production, laboratory operations, and daily use, the mainstream screw capping equipment on the market mostly uses mechanical grippers as actuators, and uses complex mechanical structures and control logic to achieve the grasping, rotation, and release of the screw cap. Therefore, the opening and tightening process of screw cap containers often becomes a tedious and costly task. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a fixing assembly for a screw-cap container to solve the defect that the existing screw-cap container has high cost in opening or tightening operations.

[0004] The present application also provides a capping device.

[0005] The fixing assembly of the screw-cap container according to the first embodiment of the present application includes:

[0006] Install components to form an installation space;

[0007] A coil spring is arranged in the installation space and is arranged along the extension direction of the installation space. The coil spring includes a fixed end and a free end. The fixed end is fixed to the installation component, and the free end is used to contact the container inserted into the coil spring and hold the container tightly as the container rotates.

[0008] According to the fixing assembly of the screw-cap container in the embodiment of the present application, when the container is inserted into the coil spring and the container rotates relative to the mounting component, the free end is driven and the coil spring holds the container tightly, providing friction force to fix the container, making it convenient to unscrew or tighten the screw cap corresponding to the container.

[0009] According to one embodiment of the present application, the free end includes a free end of an elastic body and a friction component, the friction component is connected to the free end of the elastic body, and the friction component elastically presses against the outer surface of the container.

[0010] According to one embodiment of the present application, the friction component is soft rubber.

[0011] According to one embodiment of the present application, the inner diameter of the coil spring is larger than the outer diameter of the container.

[0012] According to one embodiment of the present application, the coil spring is a soft spring, and the inner diameter of at least part of the soft spring is smaller than the outer diameter of the container.

[0013] According to one embodiment of the present application, the mounting component is a sleeve, the coil spring is fixed in the sleeve, and the sleeve and the coil spring are coaxially arranged.

[0014] According to one embodiment of the present application, a stopper is provided on the top of the mounting component, and in the pulling-out direction of the container, the stopper is provided on the outside of the coil spring.

[0015] According to one embodiment of the present application, the coil spring includes a first spring having a first coil direction and a second spring having a second coil direction, the first coil direction and the second coil direction are opposite, and the first spring and the second spring are arranged along the extension direction of the mounting component.

[0016] According to one embodiment of the present application, there are a plurality of the first springs and a plurality of the second springs, and the first springs and the second springs are arranged at intervals.

[0017] According to one embodiment of the present application, the free ends of adjacent coil springs are arranged adjacent to each other, or the fixed ends of adjacent coil springs are arranged adjacent to each other.

[0018] According to one embodiment of the present application, the free ends of adjacent coil springs are fixedly connected, or the fixed ends of adjacent coil springs are fixedly connected.

[0019] According to one embodiment of the present application, the length of the coil spring is smaller than the length of the container.

[0020] The capping device according to the second embodiment of the present application includes:

[0021] Two fixing assemblies for the above-mentioned screw-cap containers, wherein the screw-cap arrangement includes a coil spring having a single spiral direction, and the spiral directions of the coil springs of the fixing assemblies of the two screw-cap containers are opposite;

[0022] Alternatively, a fixing assembly of the screw-cap container as described above, wherein the fixing assembly of the screw-cap container comprises a plurality of coil springs with opposite spiral directions.

[0023] According to one embodiment of the present application, the screw-cap container includes a test tube, and the test tube includes a centrifuge tube or a freezing tube.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 This is one of the structural schematic diagrams of the fixing assembly of the screw-cap container provided in the embodiment of the present application.

[0027] Figure 2 This is the second structural schematic diagram of the fixing assembly of the screw-cap container provided in the embodiment of the present application.

[0028] Figure 3 yes Figure 2 A schematic diagram of the C-section structure provided in the embodiment.

[0029] Reference numerals:

[0030] 110. Installation components; 111. Installation space;

[0031] 120. Coil spring; 121. Fixed end; 122. Free end; 123. Free end of elastic body; 124. Friction component; 125. First spring; 126. Second spring. DETAILED DESCRIPTION

[0032] 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.

[0033] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed or detachable connections, where fixed connections can include integral connections; they can refer to mechanical or electrical connections; and they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0035] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0037] It should be noted that common screw-top containers on the market typically require two upper and lower clamping mechanisms to enable automated opening. The lower clamping mechanism secures the tube body with an electric or pneumatic clamp, while the upper rotating clamp unscrews the tube cap. However, the cost of providing two clamps is high. Therefore, the present application proposes a fixing assembly for a screw-top container that secures the container with a simple coil spring 120, effectively reducing production costs.

[0038] It should be noted that the screw-on cap container mentioned in this application refers to a container that is sealed or opened by screwing on the cap. A thread is provided at the opening of the container, and the screw-on cap can be tightened along the thread to seal the opening of the container. The screw-on cap container mentioned in this application is commonly found in laboratories, medical fields, such as centrifuge tubes, reagent bottles, etc. This application uses the screw-on cap container as a test tube as an example to describe the fixing components and screw-on capping equipment of the screw-on cap container of this application.

[0039] The following combination Figures 1 to 3 The invention describes a fixing assembly of a screw-cap container and a screw-capping device.

[0040] According to an embodiment of the present application, a fixing assembly of a screw-cap container is provided. Figures 1 to 3 The fixing assembly of the screw-cap container includes a mounting component 110 and a coil spring 120. The mounting component 110 forms a mounting space 111; the coil spring 120 is arranged in the mounting space 111, and the coil spring 120 is arranged along the extension direction of the mounting space 111. The coil spring 120 includes a fixed end 121 and a free end 122. The fixed end 121 is fixed to the mounting component 110, and the free end 122 is used to contact the container inserted into the coil spring 120 and hold the container tightly as the container rotates.

[0041] According to the fixing assembly of the screw-cap container in the embodiment of the present application (hereinafter referred to as the "fixing assembly of the screw-cap container" for short as the "fixing assembly"), when the container is inserted into the coil spring 120 and the container rotates relative to the mounting component 110, the free end 122 is driven, and the coil spring 120 holds the container tightly, providing friction force to fix the container, making it easier to unscrew or tighten the screw cap corresponding to the container.

[0042] The solution of this fixing component to hold the container tightly during the process of tightening or loosening the cap does not require external power supply. It can automatically fix the test tube body during the process of tightening or loosening the cap. After the process of tightening or loosening the cap is completed, the container can be automatically released under the elastic action of the coil spring 120, which is convenient for taking and placing.

[0043] It should be noted that the coil spring 120 has a helical structure that can deform and store energy when subjected to an external force, and can return to its original shape when the external force is removed. In the present application, one end of the coil spring 120 is a fixed end 121, which is fixedly connected to the mounting component 110. The other end of the coil spring 120 is a free end 122, and the fixed end 121 and the free end 122 are opposite each other. When the free end 122 is driven by the container and rotates, the free end 122 drives the helical structure to hold the container tightly. The greater the distance the free end 122 is driven, the greater the holding force generated by the coil spring 120, ultimately securing the container, thereby effectively cooperating with the screw-on capping operation of the screw-on capping device. After the screw-on capping operation is completed, due to the elastic recovery property of the coil spring 120, the free end 122 of the coil spring 120 can rotate in the opposite direction, and the coil spring 120 no longer holds the container tightly. The container can be released without additional operation, and the user can easily remove the container.

[0044] It is understood that the mounting member 110 is formed with a mounting space 111 for accommodating the coil spring 120 and the container. In some embodiments, the container may be partially located in the mounting space 111, with the container opening exposed and extending out of the mounting space 111 to facilitate connection with the screw cap. Of course, in some embodiments, the container may also be completely located in the mounting space 111. During tightening or loosening operations, the screw cap extends into the mounting space 111 and rotates relative to the container. In this case, the screw cap needs to be adaptively designed to ensure that the components driving the screw cap to rotate do not interfere with the mounting member 110.

[0045] According to one embodiment of the present application, the free end 122 includes an elastic body free end 123 and a friction component 124 , and the friction component 124 elastically presses against the outer surface of the container.

[0046] It can be understood that the free end 122 includes the elastic body free end 123 and the friction component 124. The friction component 124 can significantly increase the contact area and friction force with the outer surface of the container, making the container more stable and less likely to slip during rotation.

[0047] It can be understood that the friction component 124 is equivalent to reducing part of the inner diameter of the coil spring 120. When the container is inserted, the friction component 124 will be compressed and generate an initial clamping force, which increases the friction between the coil spring 120 and the container, making it easier for the container to drive the free end 122 to rotate.

[0048] It should be noted that, in addition to being provided at the free end 122, the friction component 124 can also be provided at other positions of the coil spring 120. For example, the spiral coil of the entire coil spring 120 can be provided with multiple friction components 124 at intervals, which not only ensures that the container can be placed into the hollow position of the coil spring 120, but also ensures that when the container rotates, the coil spring 120 can be driven to twist and clamp. Of course, the friction component 124 is provided as close to the free end 122 as possible to ensure the clamping effect of the free end 122 while not making it too difficult to insert the container.

[0049] The friction member 124 can be made of a soft and wear-resistant material, such as rubber, silicone or other soft glue. These soft glues can provide sufficient friction while effectively protecting the outer surface of the container from being scratched or worn. Of course, in addition to soft glue, the friction member 124 can also be made of other materials.

[0050] The free end 123 of the elastic body is the main body of the coil spring 120 , which is used to achieve elastic compression contact with the outer surface of the container and provide support for the friction component 124 .

[0051] According to one embodiment of the present application, the inner diameter of the coil spring 120 is larger than the outer diameter of the container. It is understood that the inner diameter of the coil spring 120 being larger than the outer diameter of the container allows the container to be easily and smoothly inserted into the coil spring 120, and the test tube can also be easily and smoothly removed from the coil spring 120, thereby improving operational convenience.

[0052] According to one embodiment of the present application, the coil spring 120 is a soft spring, and the inner diameter of at least part of the soft spring is smaller than the outer diameter of the container.

[0053] It is understood that because at least part of the inner diameter of the soft spring is smaller than the outer diameter of the container, when the container is inserted, the soft spring is compressed and generates an initial clamping force. This initial clamping force helps prevent the container from slipping or falling off during the initial stage, thereby improving the stability of the fixation. In this case, even without the friction member 124, the container can still be more stable during rotation and less likely to slip.

[0054] Since the soft spring is in closer contact with the outer surface of the container, a greater friction force can be generated as the container rotates, making it easier to fix the container.

[0055] According to one embodiment of the present application, mounting component 110 is a sleeve, and coil spring 120 is fixed within the sleeve. It will be appreciated that the sleeve provides a layer of protection for coil spring 120, preventing it from corrosion, wear, or other damage in the external environment, thereby helping to extend the spring's service life and maintain its good elastic properties. It also significantly improves the structural stability of the entire fixing assembly. According to an embodiment of the present application, the sleeve and coil spring 120 are coaxially arranged, making it convenient for the user to place the container into the sleeve while simultaneously placing the container into coil spring 120.

[0056] Of course, in addition to the sleeve structure, the mounting component 110 may also adopt other structural forms as long as it can be used to fix the supporting coil spring 120.

[0057] According to one embodiment of the present application, a stopper is provided on the top of the mounting component 110 , and in the direction of pulling out the container, the stopper is provided on the outside of the coil spring 120 .

[0058] It can be understood that the stopper provides a physical barrier in the direction of pulling out the container, effectively preventing the coil spring 120 from escaping from the mounting component 110 in an accidental situation.

[0059] It should be noted that the free end 122 of the coil spring 120 is easily moved when the container is removed or rotated. Therefore, the free end 122 of the coil spring 120 is restrained within the installation space 111 by a stopper, preventing the coil spring 120 from falling out or being damaged due to movement of the free end 122. This not only enhances the fixing stability of the container, but also improves the security of the coil spring 120 in the installation component 110.

[0060] According to one embodiment of the present application, Figure 1 The coil spring 120 includes a first spring 125 having a first coil direction and a second spring 126 having a second coil direction. The first coil direction and the second coil direction are opposite to each other. The first spring 125 and the second spring 126 are arranged along the extension direction of the mounting component 110.

[0061] It should be noted that the first and second springs 125 and 126 have opposite spiral directions. When the container is rotated in the tightening direction (e.g., clockwise, but this may vary depending on the design), it interacts with one of the first and second springs 125, 126 (assuming it is the first spring 125). During this process, the free end 122 of the first spring 125 is driven, causing the entire coil spring 120 to exert a clamping force on the container, thereby securing it. While tightening the container, the clamping force of the coil spring 120 stabilizes the container, facilitating subsequent operations, such as removing the corresponding screw cap.

[0062] Conversely, when the container is rotated in the loosening direction (counterclockwise, but this may vary depending on the design), the free end 122 of the first spring 125 releases the container, allowing it to be removed freely. As the container continues to rotate counterclockwise, it interacts with another spring with an opposite helical direction (assuming this is the second spring 126). During this process, the free end 122 of the second spring 126 is driven, causing the coil spring 120 to exert a clamping force on the container. This bidirectional securing mechanism means that regardless of the container's rotation direction, the coil spring 120 provides the necessary clamping force to secure the container, thereby enhancing flexibility and convenience.

[0063] According to one embodiment of the present application, there are plural first springs 125 and plural second springs 126 , and the first springs 125 and the second springs 126 are arranged at intervals.

[0064] When the container is rotated in the tightening direction, the multiple first springs 125 or the multiple second springs 126 tighten at multiple locations on the container. This multi-point support method can more effectively distribute the force on the container, avoiding local damage or deformation caused by excessive local force. This balanced force method helps to extend the service life of the container.

[0065] Likewise, when the container is rotated in the loosening direction, the plurality of second springs 126 or the plurality of first springs 125 hold the container tightly at a plurality of positions.

[0066] According to one embodiment of the present application, the free ends 122 of adjacent coil springs 120 are disposed adjacent to each other.

[0067] It can be understood that when the free ends 122 of adjacent coil springs 120 are arranged adjacent to each other, they can apply a clamping force to a position near the middle of the container, which helps to reduce the overall deformation or loosening caused by uneven force on a single spring, thereby enhancing the stability of the entire fixing assembly.

[0068] It is understandable that the opening of the container is relatively fragile. The adjacent arrangement of the free ends 122 of adjacent coil springs 120 means that the free ends 122 will not contact the opening of the container at the end, but will contact the relatively middle part of the container, which is more beneficial to protecting the opening of the container.

[0069] It should be noted that the adjacent here and the adjacent mentioned later refer to that the free end 122 of one coil spring 120 is set toward the free end 122 of the other coil spring 120, or simply refers to that the fixed end 121 of one coil spring 120 is set toward the fixed end 121 of the other coil spring 120. The distance between the coil springs 120 can be zero or other values, and does not have to be completely close.

[0070] According to one embodiment of the present application, the fixed ends 121 of adjacent coil springs 120 are arranged adjacent to each other.

[0071] It will be appreciated that the adjacent fixed ends 121 of adjacent coil springs 120 allow them to be more tightly connected to the mounting member 110, forming a more stable support structure. The adjacent fixed ends 121 of adjacent coil springs 120, and therefore the opposing free ends 122 of adjacent coil springs 120, help to more evenly distribute the force from each spring to the container, reducing the possibility of stress concentration.

[0072] According to one embodiment of the present application, the free ends 122 of adjacent coil springs 120 are fixedly connected.

[0073] It is understandable that when the free ends 122 are arranged adjacent to each other, if the two are not fixed, it is possible that the two free ends 122 will cross relative to each other. The fixed connection of the free ends 122 of adjacent coil springs 120 can prevent the structures of adjacent springs from being intertwined, thereby improving the stability of the fixed assembly.

[0074] According to one embodiment of the present application, the fixed ends 121 of adjacent coil springs 120 are fixedly connected.

[0075] It is understood that the connection of the fixed ends 121 allows the multiple coil springs 120 to form a more stable whole in structure. This design significantly improves the rigidity of the coil springs 120, enabling them to better resist external shocks and vibrations and maintain the stable position of the coil springs 120.

[0076] According to one embodiment of the present application, the length of the coil spring 120 is smaller than the length of the container.

[0077] It is understood that the length of the container is greater than the length of the coil spring 120, the container opening can extend beyond the coil spring 120, and the screw cap can be located outside the coil spring 120 and screwed onto the container. The bottom of the container can extend beyond the coil spring 120, or both the container opening and the bottom can extend beyond the coil spring 120. The distance that the container extends beyond the coil spring 120 can be between 1 cm and 3 cm.

[0078] The screw-capping device according to the second embodiment of the present application includes the above-mentioned fixing assembly of the screw-cap container.

[0079] It should be noted that, since the screw-capping device of the present application includes the above-mentioned fixing assembly of the screw-cap container, it has all the technical effects of the above-mentioned fixing assembly of the screw-cap container, which will not be repeated here.

[0080] When the cap needs to be tightened, the capping device drives the cap to rotate, which causes the container to rotate and drives the free end 122 of the coil spring 120 to rotate. When the coil spring 120 holds the container tightly, the container is fixed and no longer rotates, and the cap can rotate relative to the container, making it easier to tighten the cap.

[0081] When the screw cap is no longer tightened, the free end 122 of the coil spring 120 can rotate in the opposite direction due to the elastic recovery property of the coil spring 120. The coil spring 120 no longer holds the container tightly (the free end 122 of the coil spring 120 only contacts the container surface), and the container can be released without any additional operation. The user can then easily remove the container. The user can then change the container or perform other operations.

[0082] When the screw cap needs to be loosened, the screw capping device drives the screw cap to rotate, and the screw capping causes the container to rotate. The rotation of the container drives the free end 122 of the coil spring 120 to rotate. When the coil spring 120 holds the container tightly, the container is fixed and no longer rotates, and the screw cap can rotate relative to the container, making it easier to unscrew the screw cap relative to the container.

[0083] After the screw cap is unscrewed, due to the elastic recovery property of the coil spring 120, the free end 122 of the coil spring 120 can rotate in the opposite direction by itself, and the coil spring 120 no longer holds the container tightly (the free end 122 of the coil spring 120 only contacts the surface of the container). The container can be released without additional operation, and the user can easily take out the container.

[0084] According to one embodiment of the present application, the screw capping device includes two screw cap container fixing assemblies with opposite spiral directions of the coil spring 120. One screw cap container fixing assembly can be used to tighten the screw cap, and the other screw cap container fixing assembly can be used to loosen the screw cap.

[0085] It is understandable that the operator only needs to place the container on the corresponding fixing component to complete the operation of screwing on or loosening the cap, which simplifies the operation process.

[0086] It should be noted that there is no limit to the number of springs in each fixing assembly. For example, more than two coil springs 120 may be provided.

[0087] According to one embodiment of the present application, the screw-cap container includes a test tube, and the test tube includes a centrifuge tube or a freezing tube.

[0088] Centrifuge tubes are test tubes designed for use in centrifuges, capable of withstanding the centrifugal forces generated by high-speed spinning. Centrifuge tubes are made from a variety of materials, including plastic and glass, to suit different experimental needs.

[0089] Cryogenic tubes are primarily used to store biological samples that require long-term preservation, such as cells, tissues, and DNA. Cryogenic tubes are often made of plastic or special materials to withstand temperature fluctuations during freezing and thawing.

[0090] 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 fixing assembly for a screw-cap container, characterized in that: include: An installation component (110) is formed with an installation space (111); A coil spring (120) is arranged in the installation space (111). The coil spring (120) is arranged along the extension direction of the installation space (111). The coil spring (120) includes a fixed end (121) and a free end (122). The fixed end (121) is fixed to the installation component (110), and the free end (122) is used to contact a container inserted into the coil spring (120) and hold the container tightly as the container rotates.

2. The fixing assembly of the screw-cap container according to claim 1, characterized in that: The free end (122) comprises an elastic body free end (123) and a friction component (124), wherein the friction component (124) is connected to the elastic body free end (123), and the friction component (124) elastically presses against the outer surface of the container.

3. The fixing assembly of the screw-cap container according to claim 2, characterized in that: The friction component (124) is made of soft rubber.

4. The fixing assembly of the screw-cap container according to claim 2, characterized in that: The inner diameter of the coil spring (120) is greater than the outer diameter of the container.

5. The fixing assembly of the screw-cap container according to claim 1, characterized in that: The coil spring (120) is a soft spring, and at least a portion of the inner diameter of the soft spring is smaller than the outer diameter of the container.

6. The fixing assembly of the screw-cap container according to claim 1, characterized in that: The mounting component (110) is a sleeve, the coil spring (120) is fixed in the sleeve, and the sleeve and the coil spring (120) are coaxially arranged.

7. The fixing assembly of the screw-cap container according to claim 5, characterized in that: A stopper is provided on the top of the mounting component (110); in the direction of pulling out the container, the stopper is provided on the outside of the coil spring (120).

8. The fixing assembly of a screw-cap container according to any one of claims 1 to 7, characterized in that: The coil spring (120) includes a first spring (125) having a first coil direction and a second spring (126) having a second coil direction, the first coil direction and the second coil direction being opposite, and the first spring (125) and the second spring (126) are arranged along an extension direction of the mounting component (110).

9. The fixing assembly of the screw-cap container according to claim 8, characterized in that: There are multiple first springs (125) and multiple second springs (126), and the first springs (125) and the second springs (126) are arranged at intervals.

10. The fixing assembly of the screw-cap container according to claim 8, wherein: The free ends (122) of adjacent coil springs (120) are arranged adjacent to each other, or the fixed ends (121) of adjacent coil springs (120) are arranged adjacent to each other.

11. The fixing assembly of the screw-cap container according to claim 10, characterized in that: The free ends (122) of adjacent coil springs (120) are fixedly connected, or the fixed ends (121) of adjacent coil springs (120) are fixedly connected.

12. The fixing assembly of the screw-cap container according to claim 1, wherein: The length of the coil spring (120) is smaller than the length of the container.

13. A capping device, characterized in that: include: The screw-on cap arrangement comprises two fixing assemblies of screw-on cap containers according to any one of claims 1 to 7 and 12, wherein the fixing assemblies of the screw-on cap containers comprise the spiral spring (120) having a single spiral direction, and the spiral directions of the spiral springs (120) in the fixing assemblies of different screw-on cap containers are opposite; Alternatively, the screw cap arrangement comprises the fixing assembly of the screw cap container according to any one of claims 8 to 11.

14. The capping device according to claim 13, wherein: The screw-cap container includes a test tube, and the test tube includes a centrifuge tube or a freezing tube.

Images