Sealing clamp device for inert gas protection box, protection box and method

Abstract

The invention discloses a sealing clamp device for an inert gas protection box, the protection box and a method, the protection box is provided with a glove opening connected with a glove, and the sealing clamp device comprises an in-box sealing mechanism arranged in the protection box and close to the glove opening; the outside-box fixing mechanism is connected with the glove, is arranged outside the protection box and is arranged close to the glove opening; and the locking mechanism is connected with the in-box sealing mechanism and the out-box fixing mechanism respectively, and the in-box sealing mechanism and the out-box fixing mechanism can be tensioned oppositely through the rotation effect of the locking mechanism so as to clamp the box wall with the glove opening. By means of the mechanical structure of internal and external clamping, the sealing function is liberated from dependence on the box body structure and internal air pressure and converted into the function of an independent, reliable and reusable sealing clamp device, and therefore the core purpose of efficiently and safely maintaining the inert gas environment in the glove box is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the glove box equipment research and development manufacturing field, and particularly relates to a sealing clamp device for an inert gas protection box, a protection box and a method. BACKGROUND

[0002] The vacuum glove box is a laboratory equipment that fills high-purity inert gas into the box body and circulates to filter out active substances therein. It is also called a glove box, an inert gas protection box, a dry box, etc. It mainly removes O2, H2O and organic gas. It is widely used in anhydrous, oxygen-free and dust-free ultra-pure environment, such as lithium ion batteries and materials, semiconductors, super capacitors, special lamps, laser welding, brazing, etc. As the name implies, the glove box is a box body with gloves. The entire operation process is carried out in a closed environment. There is a groove on the glove and the glove port. As long as the glove is inserted into the groove of the glove port, the sealing connection function is achieved, which is simple and convenient. In this way, the glove can be used to operate in various environments in the box body. When the glove needs to be replaced, the glove is removed from the glove port. At this time, the box body is under positive pressure. Before replacing another glove, the gas in the box body will leak seriously, and air will enter the box body, causing the water and oxygen content in the box body to increase rapidly. Because the water and oxygen content is determined by the experiment and cannot be changed. At this time, the water and oxygen content must be cleaned and circulated. The operation is time-consuming and labor-intensive. Moreover, when the glove is replaced, if the operation is not proper or the installation is not in place, the glove may fall off from the glove port due to the positive pressure in the box body. In addition, the port needs to be plugged when the port position does not need or affects the operation of the experiment. At this time, a clamp is needed to assist in plugging the port and replacing and installing the glove. SUMMARY

[0003] In view of the above problems of the prior art, the purpose of the present application is to solve the problem of sealing the glove port of the laboratory glove box equipment or replacing the glove.

[0004] In order to solve the above problems, the present application provides a sealing clamp device for an inert gas protection box, a protection box and a method. The protection box has a glove port connected with a glove. The sealing clamp device comprises: an in-box sealing mechanism arranged inside the protection box and close to the glove port; an out-of-box fixing mechanism connected with the glove and arranged outside the protection box and close to the glove port; a locking mechanism connected with the in-box sealing mechanism and the out-of-box fixing mechanism, respectively, and capable of tightening the in-box sealing mechanism and the out-of-box fixing mechanism towards each other to clamp the box wall with the glove port through the rotation of the locking mechanism.

[0005] Preferably, the external fixing mechanism comprises a clamping assembly, which has an expanded state and a contracted state. In the expanded state, the radial dimension of the clamping assembly is greater than the aperture of the glove, so that the glove is supported and fixed outside the protective box. In the contracted state, the radial dimension of the clamping assembly is not greater than the aperture of the glove, so that the glove is detached and placed inside the protective box.

[0006] Preferably, the clamping assembly comprises a fixed frame and a plurality of clamping claws, each of the clamping claws is movably connected to the fixed frame, and the clamping claws are sequentially and spacedly arranged along the circumference of the fixed frame, and the clamping claws are movable relative to the fixed frame to adjust the radial dimension of the clamping assembly.

[0007] Preferably, the clamping assembly further comprises a pad, which is arranged at the end of the clamping claw away from the fixed frame and on the side of the clamping claw facing the glove aperture, so as to be attached to the wall of the box having the glove aperture.

[0008] Preferably, the internal sealing mechanism comprises: a sealing body, which is attached to the inner wall surface of the wall of the box having the glove aperture to seal the glove aperture; a support, which is arranged inside the sealing body, and one end of the support is fixedly connected to the sealing body and the other end is connected to the locking mechanism, so that the sealing body is movable relative to the wall of the box having the glove aperture under the action of the locking mechanism.

[0009] Preferably, the internal sealing mechanism further comprises a sealing ring, which is clamped between the sealing body and the inner wall surface. And / or, the sealing surface of the sealing body is adapted to the size of the glove aperture.

[0010] Preferably, the locking mechanism comprises a screw rod and an operating member, the screw rod is capable of penetrating the glove aperture and sequentially connected to the internal sealing mechanism and the external fixing mechanism, the operating member is arranged outside the protective box and at the end of the screw rod, and the operating member is capable of driving the screw rod to rotate to drive the internal sealing mechanism and the external fixing mechanism to move towards each other.

[0011] In another aspect, the present application also discloses an inert gas protection box, which comprises: a box body, which is provided with a glove aperture; a glove, which is connected to the box body by communicating with the glove aperture; The sealing clamp device is arranged on the box body and close to the glove port, and the sealing clamp device can pull the inner sealing mechanism and the outer fixing mechanism towards each other to clamp the wall of the box with the glove port by the locking mechanism, and adjust the connection degree of the outer fixing mechanism and the glove.

[0012] In another aspect, the application also discloses an operation method of the inert gas protection box, which is applied to the inert gas protection box, and the operation method comprises the following steps: The sealing clamp device is arranged on the box body, so that the inner sealing mechanism is arranged inside the box body, the outer fixing mechanism is arranged outside the box body, and the locking mechanism is connected with the positioned inner sealing mechanism and outer fixing mechanism respectively. The locking mechanism is rotated in the first rotation direction, so as to drive the inner sealing mechanism and the outer fixing mechanism to move towards each other and be attached to the wall of the box with the glove port.

[0013] Preferably, the method further comprises: The glove is installed on the glove port. The locking mechanism is rotated in the second rotation direction, so as to release the clamping force of the inner sealing mechanism and the outer fixing mechanism pulled towards each other. The radial size of the outer fixing mechanism is adjusted, so that the radial size is reduced to be able to pass through the glove port. The sealing clamp device is moved into the interior of the protection box.

[0014] Based on the above technical solution, the sealing clamp device, the protection box and the method for the inert gas protection box have the following beneficial effects: The sealing function is liberated from the dependence on the box structure and the internal gas pressure by the mechanical structure of "inner and outer clamping", and is converted into the function of an independent, reliable and reusable sealing clamp device, so that the core purpose of efficiently and safely maintaining the inert gas environment in the glove box is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0016] Figure 1 It is the overall structure schematic diagram of the protection box provided by the embodiments of the application.

[0017] Figure 2 is a schematic view of an internal structure of a protection box provided by an embodiment of the present application.

[0018] Figure 3 is a schematic view of a sealing clamp device provided by an embodiment of the present application.

[0019] Figure 4 is a schematic view of a sealing clamp device without a sealing body provided by an embodiment of the present application.

[0020] Figure 5 is a schematic view of a box outer fixing mechanism provided by an embodiment of the present application.

[0021] Figure 6 is a schematic view of a bracket provided by an embodiment of the present application.

[0022] Figure 7 is a flow chart of a sealing operation of a protection box provided by an embodiment of the present application.

[0023] Figure 8 is a flow chart of a replacement operation of a protection box provided by an embodiment of the present application.

[0024] In the drawings, reference signs are explained as follows: 100, protection box; 11, box body; 111, glove port; 12, glove; 200, sealing clamp device; 21, in-box sealing mechanism; 211, sealing body; 212, bracket; 22, out-of-box fixing mechanism; 221, clamping assembly; 222, fixing frame; 223, clamping jaw; 224, cushion block; 23, locking mechanism; 231, screw rod; 232, operating piece. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] The term "one embodiment" or "an embodiment" as may appear in the specification is intended to mean a particular feature, structure, or characteristic described herein. In the description of the application, when a term "upper", "lower", "left", "right", "top", "bottom", and the like is used, it is understood that these terms are intended to indicate the orientation or position of the apparatus or element as shown in the drawings, and are used only for convenience in describing the application and simplifying the description, and are not intended to indicate or imply that the apparatus or element must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. In addition, the terms "first", "second", are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more features. Furthermore, the terms "first", "second", and the like are used to distinguish similar objects, and do not necessarily describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.

[0027] The inert gas protection box 100, also known as a vacuum glove box 12, is a kind of laboratory equipment that fills high-purity inert gas into the box 11 and circulates to filter out active substances such as water and oxygen in it, aiming to provide a water-free, oxygen-free, dust-free ultra-pure environment. It is widely used in lithium ion battery research and development, semiconductors, special welding, OLED research, pharmaceutical industry and other fields with strict requirements on atmospheric environment. Its core structure usually includes a main box 11 and a transition chamber, and the main box 11 is provided with a glove port 111 for operation and an observation window.

[0028] However, in the actual use of the inert gas protection box 100, the glove 12 is a consumable part and needs to be replaced regularly. When replacing the glove 12, how to effectively and conveniently seal the glove port 111 to prevent the valuable inert gas in the box from leaking and the outside air from entering is a key and common technical problem.

[0029] Therefore, in view of the above problems, as shown in Figures 1-6 The present application embodiment proposes a sealing clamp device 200 for the inert gas protection box 100, the protection box 100 has a glove port 111 connected with the glove 12, and the sealing clamp device 200 comprises: An in-box sealing mechanism 21 is arranged inside the protection box 100 and close to the glove port 111; An out-of-box fixing mechanism 22 is connected with the glove 12 and arranged outside the protection box 100 and close to the glove port 111; The locking mechanism 23 is connected with the in-box sealing mechanism 21 and the out-box fixing mechanism 22, respectively, and can pull the in-box sealing mechanism 21 and the out-box fixing mechanism 22 towards each other to clamp the box wall with the glove port 111 through the rotation of the locking mechanism 23.

[0030] In the embodiment of the present application, the sealing clamp device 200 is made of acrylic material, which has high visibility.

[0031] It can be understood that the core technical solution of the present application is to provide an independent device for sealing by pure mechanical clamping force. The device ingeniously uses a locking mechanism 23 penetrating through the glove port 111 to connect and tighten two functional components, i.e., the in-box sealing mechanism 21 and the out-box fixing mechanism 22, which are separately arranged inside and outside the box 11, and then rotates the locking mechanism 23 to generate a strong pulling force towards each other, thereby firmly clamping the box wall containing the glove port 111 between the two mechanisms. This design changes the sealing function from passive dependence on the structure and internal pressure of the box 11 to an active and controllable mechanical clamping process. Not only does it solve the problem of replacing or sealing the glove 12 by a single person, but more importantly, the stable mechanical clamping force provided by it can effectively resist the positive pressure inside the box, prevent the glove 12 from collapsing and gas leakage, and at the same time, the device itself can be used as a temporary sealing piece, greatly improving the flexibility, safety and inert gas retention efficiency of the glove 12 box.

[0032] Specifically, the in-box sealing mechanism 21, the out-box fixing mechanism 22 and the locking mechanism 23 have a synergistic effect. First, the device builds a physical structure basis for internal and external clamping by the in-box sealing mechanism 21 and the out-box fixing mechanism 22 arranged inside and outside the box 11. The in-box sealing mechanism 21 is used to fit the inner wall of the glove port 111 from the inside to form the first sealing barrier, and the out-box fixing mechanism 22 is connected with the edge structure of the glove 12 or the glove port 111 from the outside to provide external support and clamping points. This internal and external separation design improves the versatility of the device, which can adapt to various glove 12 box structures. Secondly, the locking mechanism 23 connecting and driving the in-box sealing mechanism 21 and the out-of-box fixing mechanism 22 is the key to realize reliable clamping sealing. By rotating the locking mechanism 23, a strong mechanical tension can be generated to pull the in-box sealing mechanism 21 and the out-of-box fixing mechanism 22 towards each other, so that the box wall containing the glove port 111 is firmly clamped between them. This purely mechanical clamping force has at least the following decisive advantages compared to the traditional sealing method relying on the groove cooperation between the glove 12 sleeve port and the glove port 111 or the box gas pressure maintenance: stable and controllable sealing force, no change with the fluctuation of the box gas pressure, avoiding the problem of large amount of gas leakage when replacing the glove 12 in the positive pressure state; prevent accidental falling, strong mechanical clamping force can effectively prevent the glove 12 from falling from the glove port 111 under the positive pressure in the box, safer operation; realize temporary plugging, since the device itself can be used as an independent plugging piece, it can be quickly installed when needed, completely sealing the glove port 111 and maintaining the inert atmosphere in the box without complex box 11 cleaning and gas circulation operation.

[0033] In summary, through the "inner and outer clamping" mechanical structure, the sealing function is liberated from the dependence on the structure and internal gas pressure of the box 11, and is transformed into the function of an independent, reliable and reusable sealing clamp device 200, thereby achieving the core purpose of efficiently and safely maintaining the inert gas environment in the glove 12 box.

[0034] As shown in Figure 4 The out-of-box fixing mechanism 22 includes a clamping assembly 221, and the clamping assembly 221 has an expanded state and a contracted state. In the expanded state, the radial dimension of the clamping assembly 221 is greater than the hole diameter of the glove 12, so that the glove 12 is supported and fixed outside the protective box 100. In the contracted state, the radial dimension of the clamping assembly 221 is not greater than the hole diameter of the glove 12, so that the sealing clamp device 200 can be disassembled and placed inside the protective box 100.

[0035] It can be understood that the out-of-box fixing mechanism 22 contains the technical feature of "expandable and contractible clamping assembly 221", and the core technical effect is to provide a dynamic adjustable, highly adaptive and convenient storage fixing method for the sealing clamp device 200, thereby realizing stable and reliable out-of-box fixing during glove 12 replacement or temporary plugging, and convenient disassembly and storage in the box, greatly improving the convenience of operation and the practicality of the device.

[0036] Specifically, the above technical effect is realized by limiting the function of the clamping assembly 221 in the two states and its relationship with the glove port 111 and the box 11 space.

[0037] Firstly, by defining that the clamping assembly 221 has an "expanded state" and a "contracted state", it is explained that the clamping assembly 221 has the ability of dynamic adjustment. Secondly, in the "expanded state", the radial dimension of the clamping assembly 221 is greater than the hole diameter of the glove 12, which means that when the device is installed in place, the clamping assembly 221 can form a "support platform" or "snap structure" outside the glove port 111 like the clamping jaw 223 of the mechanical clamp, which has a size greater than the hole diameter of the glove 12, so as to effectively support and firmly fix the glove 12 outside the protection box 100, preventing it from falling off or moving; in the "contracted state", the radial dimension of the clamping assembly 221 is not greater than the hole diameter of the glove 12, which means that when it is necessary to remove the sealing clamp device 200 from the glove port 111, the operator can first contract the clamping assembly 221 to a smaller size, which is smaller than or equal to the hole diameter of the glove port 111, so that the entire external fixing mechanism 22 can smoothly pass through the glove port 111 and be stored inside the inert gas protection box 100, which solves the problem of occupying external space, being easily lost or contaminated in the non-use state of the sealing device in the prior art.

[0038] As a preferred embodiment, as shown in the drawings, the clamping assembly 221 comprises a fixed frame 222 and a plurality of clamping jaws 223, the plurality of clamping jaws 223 are movably connected with the fixed frame 222, and the plurality of clamping jaws 223 are sequentially and spacedly arranged along the circumference of the fixed frame 222, and the clamping jaws 223 can move relative to the fixed frame 222 to adjust the radial dimension of the clamping assembly 221. Figure 5

[0039] In the embodiment of the present application, the number of clamping jaws 223 is four, and a 90° angle is provided between adjacent clamping jaws 223.

[0040] In the embodiment of the present application, the fixed frame 222 is a cross structure, which is movably connected with the clamping jaws 223, specifically, the ends of the clamping jaws 223 are embedded into the fixed frame 222 and are hinged with the fixed frame 222, so that the clamping jaws 223 can flexibly rotate relative to the fixed frame 222, and when the clamping assembly 221 is in the contracted state, each clamping jaw 223 moves towards the axis direction of the glove port 111, so that the extension direction of each clamping jaw 223 is perpendicular to the cross section of the glove port 111, or is in a similar perpendicular state.

[0041] It can be understood that the core technical effect is to provide a clamping and fixing scheme with stable structure, flexible adjustment and strong adaptability for the sealing clamp device 200, so that it can reliably adapt to glove ports 111 or box body 11 structures of different sizes, and firmly support the box outside by a mechanical method, effectively resist the positive pressure in the box, and ensure the reliability of the sealing.

[0042] ​Specifically, the above-mentioned effects are achieved by the rigid support base provided by the "fixed frame 222" and the dynamic clamping unit composed of the "multiple movable clamping jaws 223".

[0043] Firstly, the fixed frame 222 constitutes the core framework of the clamping assembly 221, which provides a stable installation foundation and mechanical support point for the entire clamping assembly 221 as a rigid and circumferentially complete structure. Secondly, the multiple clamping jaws 223 that are movably connected and arranged circumferentially are the key to realizing the "adjustable radial size" and "stable clamping" functions, that is, each clamping jaw 223 can move independently or in linkage relative to the fixed frame 222. By adjusting the extension amount or opening angle of all clamping jaws 223, the diameter of the "clamping circumference" formed by the outer edges of the clamping jaws 223 can be changed as a whole, so that the clamping assembly 221 can flexibly adjust its effective radial size according to the size of the glove port 111 or the external structure of the box 11 that needs to be supported. In the contracted state, all clamping jaws 223 are inwardly folded, so that the minimum envelope diameter of the entire assembly is less than or equal to the hole diameter of the glove port 111, thereby being able to be accommodated into the box through the glove port 111; in the expanded state, the clamping jaws 223 move outwardly, so that the radial size of the assembly is greater than the hole diameter of the glove port 111, thereby forming a reliable "buckle" or "support platform" outside the box to prevent the device from falling inward.

[0044] In addition, the multiple clamping jaws 223 are uniformly distributed circumferentially, so that in the expanded state, the clamping force can be uniformly applied to the circumference of the glove port 111 or the external structure of the box 11. Compared with single-point or few-point clamping, this multi-point and uniform contact mode can significantly improve the stability and balance of clamping, preventing the device from tilting or sealing failure due to uneven force.

[0045] Further, the clamping assembly 221 further comprises a pad 224, which is arranged at one end of the clamping jaw 223 away from the fixed frame 222 and on the side of the clamping jaw 223 facing the glove port 111, for abutting with the box wall having the glove port 111.

[0046] In the embodiments of the present application, the pad 224 is of an elastic structure, such as a rubber structure.

[0047] In the embodiments of the present application, the side of the pad 224 facing the box wall is designed to have a texture with a high friction coefficient or is made of a high-friction material, so as to further increase the static friction force between the clamping assembly 221 and the box wall.

[0048] It can be understood that the end of the clamping jaw 223 is usually a rigid structure, and if it directly contacts the box wall of the glove box 12, the contact area is small, and the pressure concentration may cause excessive local pressure to bruise the box wall, or a small leakage channel may be formed due to insufficient contact. Therefore, by providing the gasket 224 at the end of the clamping jaw 223, the gasket 224 acts as an intermediate medium, and the contact area with the box wall is much larger than that of the clamping jaw 223 itself. When the locking mechanism 23 applies tension, the clamping force is transmitted to the gasket 224 through the clamping jaw 223, and then the gasket 224 acts on the box wall in the form of more uniform surface pressure. Such surface contact greatly increases the effective sealing area, and the clamping force is more evenly distributed, thereby significantly improving the reliability of the seal and effectively preventing inert gas leakage.

[0049] In addition, the gasket 224 protects the peripheral area of the glove port 111 on the box 100, which requires high surface finish and may be brittle in material. Direct scratching or pointwise extrusion of the rigid clamping jaw 223 can easily cause scratches or even cracks. Therefore, the gasket 224 can act as a buffer layer, which can absorb part of the stress during clamping and convert the concentrated point load into a more widely distributed surface load, thereby effectively preventing the clamping jaw 223 from leaving pressure marks or causing structural damage on the surface of the box 11.

[0050] As shown in FIGS. Figure 3 and Figure 6 The box-in sealing mechanism 21 comprises: a sealing body 211, which is in close contact with the inner wall surface of the box wall having the glove port 111 to seal the glove port 111; a support 212, which is arranged inside the sealing body 211, and one end of the support 212 is fixedly connected with the sealing body 211, and the other end is connected with the locking mechanism 23, so that the sealing body 211 can be driven to move relative to the box wall having the glove port 111 under the action of the locking mechanism 23.

[0051] In the embodiment of the present application, the sealing body 211 is sleeved on the end of the support 212 and connected with the end of the support 212, so as to realize the fixed connection of the support 212 and the sealing body 211.

[0052] It can be understood that the sealing body 211 is a component that directly contacts the inner wall of the box wall and forms a sealing effect. When the sealing body 211 is pressed against the box wall, it can fill the unevenness of the edge of the glove port 111, forming a close sealing contact surface. The bracket 212 is fixed inside the sealing body 211, and when the locking mechanism 23 is tightened, the tension generated is transmitted to the bracket 212 through the screw rod 231. The bracket 212 acts as a rigid internal skeleton and can disperse the concentrated tension to the entire area of the sealing body 211. Through the force transmission of the bracket 212, it is ensured that the sealing body 211 can be uniformly pressed against the inner surface of the box wall in a nearly parallel manner, avoiding local leakage caused by uneven force.

[0053] As a preferred embodiment, the box-in sealing mechanism 21 further comprises a sealing ring, which is clamped between the sealing body 211 and the inner wall surface In the embodiment of the present application, the sealing ring is made of elastic materials such as rubber and silicone.

[0054] In the embodiment of the present application, the sealing ring is an O-shaped sealing ring.

[0055] It can be understood that the sealing body 211 itself can be a rigid or semi-rigid structural component, and its direct contact with the inner wall surface of the box wall is difficult to guarantee absolute planar fitting, especially in the presence of minor unevenness, scratches or machining errors on the periphery of the glove port 111. If only the sealing body 211 is directly pressed, a micro leakage channel may be formed due to poor local contact. By introducing an independent sealing ring as an intermediate medium, when the locking mechanism 23 pulls the sealing body 211 against the box wall through the bracket 212, the sealing ring is compressed between the two. The elastic sealing ring will deform under pressure to fill all the micro-unevenness between the sealing body 211 and the inner surface of the box wall, forming a continuous and tight sealing contact band.

[0056] As a preferred embodiment, the sealing surface size of the sealing body 211 is adapted to the size of the glove port 111.

[0057] It can be understood that the glove port 111 is a regular or irregular opening on the box wall of the glove 12, which is a weak link of the airtightness of the box body 11 and a potential leakage point. The core function of the sealing body 211 is to block this opening. "The sealing surface size is adapted to the size of the glove port 111" means that the area and contour shape of the region of the sealing body 211 that contacts the inner wall of the box wall (i.e. the sealing surface) are designed to completely cover the entire area of the glove port 111, and are usually slightly larger than the glove port 111, thereby ensuring that when the sealing body 211 is pressed against the box wall, its sealing surface can completely "shield" the glove port 111 below, without any part of the edge of the glove port 111 being exposed.

[0058] As shown in Figure 3 the locking mechanism 23 comprises a screw rod 231 and an operating member 232, the screw rod 231 can penetrate the glove port 111 and is connected with the in-box sealing mechanism 21 and the out-of-box fixing mechanism 22 in sequence, the operating member 232 is arranged outside the protection box 100 and at the end of the screw rod 231, the operating member 232 can drive the screw rod 231 to rotate, so as to drive the in-box sealing mechanism 21 and the out-of-box fixing mechanism 22 to move towards each other.

[0059] In the embodiment of the present application, a threaded hole matched with the screw rod 231 is arranged at the center position of the fixing frame 222, so that the screw rod 231 can penetrate the threaded hole to realize the connection between the out-of-box fixing mechanism 22 and the screw rod 231.

[0060] In the embodiment of the present application, a threaded hole matched with the screw rod 231 is arranged at the center position of the fixing frame 222, so that the screw rod 231 can penetrate the threaded hole to realize the connection between the out-of-box fixing mechanism 22 and the screw rod 231.

[0061] In the embodiment of the present application, the operating member 232 can adopt a knob, a handle or the like.

[0062] It can be understood that the screw rod 231 is a rigid transmission shaft, penetrates the physical barrier of the glove port 111, and is connected with the in-box sealing mechanism 21 and the out-of-box fixing mechanism 22 at both ends. When the operating member 232 outside the protection box 100 drives the screw rod 231 to rotate, the rotary motion can be directly and losslessly transmitted to the box through the long shaft of the screw rod 231, so that the operator can complete all locking operations from outside the box without needing to put his hand into the box or relying on auxiliary in the box, which greatly simplifies the process and guarantees the operation safety, especially when maintaining the inert gas environment in the box.

[0063] It can be understood that the connection mode of the screw rod 231 and the in-box and out-of-box mechanisms is essentially to convert the rotary motion of the screw rod 231 into the linear motion of the two connection points. When the operating member 232 drives the screw rod 231 to rotate in one direction, according to the principle of the threaded pair, the in-box sealing mechanism 21 and the out-of-box fixing mechanism 22 matched with the screw rod 231 will produce opposite displacements along the axial direction of the screw rod 231, and this opposite movement can make the in-box sealing mechanism 21 be pulled to the inner side of the box wall, and the out-of-box fixing mechanism 22 be pulled to the outer side of the box wall, so as to firmly clamp the box wall where the glove port 111 is located in the middle.

[0064] Understandably, the screw 231 drive features self-locking and precise displacement control. By rotating the operating component 232, the operator can precisely control the distance the internal and external mechanisms move in opposite directions and the final clamping force. This allows the operator to gradually apply and ultimately achieve the required locking torque based on the compression of the pad 224 and by feel, thus forming a reliable sealing surface.

[0065] like Figures 1-2 As shown in the embodiments of this application, an inert gas protection box 100 is also disclosed, which includes: Box 11, which has a glove opening 111; Glove 12 is connected to the box 11 via a glove opening 111; The sealing clamp device 200 described above is disposed on the box body 11 and near the glove opening 111. The sealing clamp device 200 can use the locking mechanism 23 to pull the inner sealing mechanism 21 and the outer fixing mechanism 22 towards each other to clamp the box wall with the glove opening 111, and adjust the connection degree between the outer fixing mechanism 22 and the glove 12.

[0066] Understandably, the sealing clamp device 200 can not only be used for temporary sealing, but also adjust the connection between its external fixing mechanism 22 and the new glove 12. This means the device may integrate the glove 12's installation interface or clamping function. Specifically, when installing the new glove 12, the clamping force of the external fixing mechanism 22 on the glove opening 111 can be controlled by adjusting the locking mechanism 23. This adjustable clamping method, compared to traditional fixing bolts, provides a more uniform and controllable clamping force, ensuring that the sealing ring between the glove 12 and the glove opening 111 is uniformly compressed, forming a reliable static seal. This directly improves the sealing reliability of the glove 12 after installation and reduces the risk of minor leaks due to improper installation. Minor air leaks can severely affect the extremely low water and oxygen content control target inside the container.

[0067] like Figure 7 As shown in the embodiments of this application, an operating method for an inert gas protection chamber 100 is also disclosed, which is applied to the inert gas protection chamber 100 described above. The operating method includes: S101. The sealing clamp device 200 is set on the glove opening 111, so that the box inner sealing mechanism 21 is placed inside the box body 11, the box outer fixing mechanism 22 is placed outside the box body 11, and the locking mechanism 23 is connected to the positioned box inner sealing mechanism 21 and box outer fixing mechanism 22 respectively. S102, rotating the locking mechanism 23 in a first rotating direction to drive the in-box sealing mechanism 21 and the out-box fixing mechanism 22 to move towards each other to be in contact with the box wall having the glove port 111.

[0068] It can be understood that the above operation method is a plugging operation step.

[0069] In the embodiment of the present application, as shown in Figure 8 the operation method further includes a replacement operation step: S201, installing the glove 12 on the glove port 111; S202, rotating the locking mechanism 23 in a second rotating direction to release the clamping force of the in-box sealing mechanism 21 and the out-box fixing mechanism 22 moving towards each other; S203, adjusting the radial size of the out-box fixing mechanism 22 to reduce the radial size to be able to pass through the glove port 111; S204, moving the sealing clamp device 200 into the inside of the protection box 100.

[0070] It can be understood that the step S203 adjusts the radial size of the out-box fixing mechanism 22, that is, adjusts the clamping jaw 223 in the clamping assembly 221 to a folding state, to remove the connection between the sealing clamp device 200 and the box body 11.

[0071] It can be understood that the first rotating direction and the second rotating direction are two opposite directions, for example, the first rotating direction is clockwise rotation, and the second rotating direction is counterclockwise rotation.

[0072] Finally, it also includes: S205, taking out the sealing clamp device 200 from the protection box 100 through the transfer chamber of the protection box 100.

[0073] The above description has fully disclosed the specific embodiments of the present application. It should be pointed out that any modification made by those skilled in the art to the specific embodiments of the present application does not deviate from the scope of the claims of the present application. Accordingly, the scope of the claims of the present application is not limited to the foregoing specific embodiments.

Claims

1. A seal clamp device for an inert gas protection tank, characterized by, The protective box has a glove port connected with the glove, and the sealing clamp device comprises: an inner box sealing mechanism arranged in the interior of the protective box and close to the glove port; an outer box fixing mechanism connected with the glove and arranged in the exterior of the protective box and close to the glove port; a locking mechanism connected with the inner box sealing mechanism and the outer box fixing mechanism respectively, and capable of pulling the inner box sealing mechanism and the outer box fixing mechanism towards each other to clamp the box wall with the glove port through the rotation of the locking mechanism.

2. The closure clamp apparatus of claim 1, wherein, The outer box fixing mechanism comprises a clamping assembly, and the clamping assembly has an expanded state and a contracted state. In the expanded state, the radial dimension of the clamping assembly is greater than the hole diameter of the glove, so that the glove is supported and fixed on the exterior of the protective box. In the contracted state, the radial dimension of the clamping assembly is not greater than the hole diameter of the glove, so that the sealing clamp device can be disassembled and placed in the interior of the protective box.

3. The closure clamp apparatus of claim 2, wherein, The clamping assembly comprises a fixing frame and a plurality of clamping claws, the plurality of clamping claws are movably connected with the fixing frame, and the plurality of clamping claws are sequentially and spacedly arranged along the circumference of the fixing frame, and the clamping claws are capable of moving relative to the fixing frame to adjust the radial dimension of the clamping assembly.

4. The closure clamp apparatus of claim 3, wherein, The clamping assembly further comprises a pad block arranged at one end of the clamping claw away from the fixing frame and on the side of the clamping claw facing the glove port, so as to be attached to the box wall with the glove port.

5. The closure clamp apparatus of claim 1, wherein, The inner box sealing mechanism comprises: a sealing body attached to the inner wall surface of the box wall with the glove port to seal the glove port; a support arranged in the interior of the sealing body, and one end of the support is fixedly connected with the sealing body, and the other end is connected with the locking mechanism, so that the sealing body can be moved relative to the box wall with the glove port under the action of the locking mechanism.

6. The closure clamp apparatus of claim 5, wherein, The inner box sealing mechanism further comprises a sealing ring clamped between the sealing body and the inner wall surface. The sealing surface of the sealing body is adapted to the size of the glove port.

7. The closure clamp apparatus of claim 1, wherein The locking mechanism comprises a screw rod and an operating member, the screw rod can penetrate the glove port and is sequentially connected with the inner box sealing mechanism and the outer box fixing mechanism, the operating member is arranged on the exterior of the protective box and at the end of the screw rod, and the operating member can drive the screw rod to rotate to drive the inner box sealing mechanism and the outer box fixing mechanism to move towards each other.

8. An inert gas shielded case characterized by, It comprises: a box body provided with a glove port; a glove connected with the box body through the communication with the glove port; the sealing clamp device of any one of claims 1-7 is arranged on the box body and close to the glove port, and the sealing clamp device can pull the inner box sealing mechanism and the outer box fixing mechanism towards each other to clamp the box wall with the glove port through the locking mechanism, and adjust the connection degree of the outer box fixing mechanism and the glove.

9. A method of operating an inert gas shielded enclosure, characterized by, It is applied to the inert gas protection box of claim 8, and the operation method comprises: The sealing fixture device is arranged on the glove port, so that the inner sealing mechanism is arranged inside the box, the outer fixing mechanism is arranged outside the box, and the locking mechanism is connected with the positioned inner sealing mechanism and outer fixing mechanism respectively; The locking mechanism is rotated in the first rotation direction, so that the inner sealing mechanism and the outer fixing mechanism are moved towards each other to be attached to the box wall with the glove port.

10. The method of claim 9, wherein, The method further comprises: The glove is installed on the glove port; The locking mechanism is rotated in the second rotation direction to release the clamping force of the inner sealing mechanism and the outer fixing mechanism being pulled towards each other; The radial size of the outer fixing mechanism is adjusted to be reduced to pass through the glove port; The sealing fixture device is moved into the interior of the protection box.

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