Cap screwing device

Abstract

The utility model provides a screw cap device which comprises a body, a sealing cover assembly arranged on the lower portion of the body in the circumferential direction, a screw cap, a nut and a connector, the screw cap, the nut and the connector are arranged on the upper portion of the body in the circumferential direction, the sealing cover assembly comprises a sealing cover and a silica gel pad, and the silica gel pad is located above the sealing cover; the screw cap comprises an upper screw cap section and a lower screw cap section; a plurality of guide pins are arranged on the side surface of the lower screw cap section; the joint is hermetically connected with the nut. The cap screwing device provided by the utility model cannot drive the reagent bottle to rotate during rotary limiting, so that the cost is saved, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of capping equipment, in particular to a capping device. Background Art

[0002] When rotating, the existing screw capping device usually drives the reagent bottle to rotate together, thereby causing a waste of resources. Therefore, it is of great significance to provide a screw capping device that can solve the problem of the screw capping device driving the reagent bottle to rotate together.

[0003] The Chinese invention patent with application number “CN201811406333.9” and name “A Screw-On Cap Mechanism” discloses a screw-on cap mechanism, including a U-shaped clamp, a left clamp, a screw-on cap cover, a small motor, a crossbeam, an electric push rod, a right clamp, a bolt, a baffle, a spring, a baffle and a pressure rod. The right clamp is arranged on the side surface of the U-shaped clamp on the left side of the electric push rod, and the left clamp is arranged on the left end of the upper side surface of the U-shaped clamp. Threaded holes are provided at the left and right ends of the lower side surface of the U-shaped clamp. The upper end of the bolt is engaged in the threaded hole through a thread. The right end of the crossbeam is fixed to the upper end of the left side surface of the electric push rod. The screw-on cap cover is connected to the lower end of the small motor, the baffle is fixed to the upper end inside the screw-on cap cover, the baffle is fixed to the pressure rod, and the spring is sleeved on the pressure rod between the baffle and the baffle. This design realizes the function of convenient screw-on cap opening, is easy to use, saves time, has good stability, and is easy to open the cap. However, the present application is different from its structure. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention aims to solve one or more problems in the prior art. For example, one of the purposes of the present invention is to solve the problem that the existing screw capping device usually drives the reagent bottle to rotate together when rotating, thereby causing waste of resources.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a screw cap device, which may include: a main body, a sealing cover assembly circumferentially arranged at the lower part of the main body, and a screw cap, a nut and a joint circumferentially arranged at the upper part of the main body, wherein the sealing cover assembly includes a sealing cover and a silicone pad, and the silicone pad is located above the sealing cover; the screw cap includes an upper screw cap and a lower screw cap, and a plurality of guide pins are arranged on the side of the lower screw cap; the joint is sealed with the nut.

[0006] According to one or more exemplary embodiments of the present invention, the body may include: a first body, and a second body circumferentially arranged around the first body.

[0007] According to one or more exemplary embodiments of the present invention, the second body may include a first section, a second section and a third section from bottom to top, wherein the first section is configured to press down the cover plate to play a supporting role; the second section is configured to cooperate with the screw cover; and the third section is configured to cooperate with the nut.

[0008] According to one or more exemplary embodiments of the present invention, a through hole may be provided between the lower pressing cover plate and the sealing cover assembly for forming a vacuum.

[0009] According to one or more exemplary embodiments of the present invention, the sealing cover may include a vacuum sealing cover capable of sealing the reagent bottle.

[0010] According to one or more exemplary embodiments of the present invention, a film resistant to corrosion by organic solvents may be installed on the other side of the sealing cover that contacts the silicone gasket.

[0011] According to one or more exemplary embodiments of the present invention, the device may further include a sealing ring disposed on the opening of the nut.

[0012] According to one or more exemplary embodiments of the present invention, the joint may be sealed with the nut by the sealing ring.

[0013] According to one or more exemplary embodiments of the present invention, the joint may include a vacuum joint.

[0014] According to one or more exemplary embodiments of the present invention, the number of the guide pins may be greater than or equal to 2.

[0015] Compared with the prior art, the beneficial effects of the present invention include at least one of the following:

[0016] (1) The capping device provided by the present invention will not drive the reagent bottle to rotate when the rotation is limited, which saves costs and is easy to use.

[0017] (2) The screw capping device provided by the present invention is limited by an independent rotating component, which effectively avoids the sealing gasket and the reagent bottle from rotating when the screw cap is used. An O-ring is embedded inside the upper vacuum interface, so that the vacuum connector can be used selectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects and / or features of the present invention will become more apparent from the following description in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic structural diagram of a capping device in an exemplary embodiment of the present invention is shown;

[0020] Figure 2 Another structural schematic diagram of a screw capping device in an exemplary embodiment of the present invention is shown;

[0021] Figure 3A partial structural diagram of a capping device in an exemplary embodiment of the present invention is shown;

[0022] Figure 4 Another partial structural schematic diagram of a screw capping device in an exemplary embodiment of the present invention is shown.

[0023] Description of reference numerals:

[0024] 110-first body, 120-second body, 121-lower pressure cover, 122-second section, 123-third section, 200-sealing cover assembly, 210-sealing cover, 220-silicone pad, 300-screw cover, 310-upper screw cover, 320-lower screw cover, 400-nut, 500-connector, 600-sealing ring, 700-through hole, 800-guide pin. DETAILED DESCRIPTION

[0025] Hereinafter, a capping device of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0026] In the description of this application, it should be understood that the terms "center," "upper," "lower," "bottom," "inner," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this application. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0028] Exemplary embodiment 1

[0029] Figure 1 A schematic structural diagram of a capping device in an exemplary embodiment of the present invention is shown; Figure 2 Another structural schematic diagram of a screw capping device in an exemplary embodiment of the present invention is shown; Figure 3 A partial structural diagram of a capping device in an exemplary embodiment of the present invention is shown; Figure 4 Another partial structural schematic diagram of a screw capping device in an exemplary embodiment of the present invention is shown.

[0030] The present exemplary embodiment provides a capping device.

[0031] like Figures 1 to 4 As shown in , the device mainly includes: a body, a sealing cover assembly 200 circumferentially arranged at the lower part of the body, and a rotating cover 300 circumferentially arranged at the upper part of the body, a nut 400 and a joint 500.

[0032] The sealing cover assembly 200 includes a sealing cover 210 and a silicone pad 220. The silicone pad 220 is located above the sealing cover 210. The screw cap 300 includes an upper screw cap 310 and a lower screw cap 320. The lower screw cap 320 is provided with multiple guide pins 800 on the side. The joint 500 is sealed with the nut 400. Here, the upper screw cap 310 can be used to place the parts apart when manually removing the sealing cover assembly 200. The guide pins 800 can be used to cooperate with the external cover plate for positional fixation. The number of guide pins 800 is greater than or equal to 2. Furthermore, the number of guide pins 800 can be 2, and they are symmetrically distributed on the side of the lower screw cap 320.

[0033] In this exemplary embodiment, the body may include: a first body 110, and a second body 120 circumferentially disposed around the first body 110. The second body 120 includes, from bottom to top, a first section, a second section 122, and a third section 123. The first section is configured to support the lower pressing plate 121, the second section 122 is configured to engage the screw cap 300, and the third section 123 is configured to engage the nut 400. A through hole 700 is provided between the lower pressing plate 121 and the sealing cover assembly 200 for forming a vacuum.

[0034] In this exemplary embodiment, the sealing cap 210 may include a vacuum sealing cap that can seal the reagent bottle. The other side of the sealing cap 210 that contacts the silicone pad 220 may be provided with a film that is resistant to organic solvent corrosion. Further, the film may be a peek film.

[0035] In this exemplary embodiment, the device may further include a sealing ring 600 disposed on the opening of the nut 400. The joint 500 may be sealed to the nut 400 via the sealing ring 600. The joint 500 may include a vacuum joint. The sealing ring 600 may be a sealing O-ring, embedded in the vacuum interface on the upper portion of the first body 110 to prevent pressure release and allow for selective use of the vacuum joint.

[0036] In this exemplary embodiment, the working principle / usage process of the capping device may include:

[0037] Manually place the reagent bottle, place the screw cap device, press down and rotate the nut 400, drive the guide pin 800 to rotate, and lock with the external cover limit. At this time, the reagent bottle is sealed and the vacuum of the reagent bottle begins. After the vacuum of the reagent bottle is completed, rotate the nut 400 in the opposite direction to drive the guide pin 800 back to its original position. The force of rotating the nut 400 here ensures that the rotation will not generate rotational force on other components in the area and the reagent bottle below. Manually remove the main body assembly. At this time, the reagent bottle will be taken out together under the action of vacuum adsorption, and the next step of reagent analysis will be carried out.

[0038] In summary, the screw-on capping device provided by the present invention has an internal sealing O-ring that allows the vacuum connector to be disconnected when not in use. The internal rotating cap does not rotate the bottom sealing cap assembly or the reagent bottle when the cap is rotated. The independent rotating component provides position limiting, effectively preventing the sealing gasket and the reagent bottle from rotating when the cap is in use. The internal O-ring embedded in the upper vacuum interface allows the vacuum connector to be used selectively.

[0039] Although the above describes a screw cap device of the present invention in combination with exemplary embodiments, it should be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope defined by the claims.

Claims

1. A capping device, characterized in that: The device comprises: a body, a sealing cover assembly circumferentially arranged at the lower part of the body, and a screw cap, a nut and a joint circumferentially arranged at the upper part of the body, wherein: The sealing cover assembly includes a sealing cover and a silicone pad, wherein the silicone pad is located above the sealing cover; The rotary cover comprises an upper rotary cover and a lower rotary cover, and a plurality of guide pins are arranged on the side of the lower rotary cover; The joint is sealed with a nut.

2. The capping device according to claim 1, wherein: The body includes: a first body and a second body circumferentially arranged around the first body.

3. The capping device according to claim 2, wherein: The second body includes a first section, a second section and a third section from bottom to top, wherein the first section is configured to press down the cover plate to play a supporting role; the second section is configured to cooperate with the screw cover; and the third section is configured to cooperate with the nut.

4. The capping device according to claim 3, wherein: A through hole is provided between the lower pressing cover plate and the sealing cover assembly for forming a vacuum.

5. The capping device according to claim 1, wherein: The sealing cover comprises a vacuum sealing cover, which can seal the reagent bottle.

6. The capping device according to claim 1 or 5, characterized in that: The other side of the sealing cover in contact with the silica gel pad is provided with a film resistant to organic solvent corrosion.

7. The capping device according to claim 1, wherein: The device further comprises a sealing ring which is arranged on the opening of the nut.

8. The capping device according to claim 7, wherein: The joint is sealed with the nut through the sealing ring.

9. The capping device according to claim 1 or 8, characterized in that: The connector includes a vacuum connector.

10. The capping device according to claim 1, wherein: The number of the guide pins is greater than or equal to 2.

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