A vacuum packaging mechanism

Abstract

The utility model discloses a vacuum encapsulation mechanism, include: box, lid, first quick detach assembly and second quick detach assembly, and the lid is used for covering the box, first quick detach assembly is detachable connection along the first direction with the box, second quick detach assembly is detachable connection along the second direction with the lid and first quick detach assembly, and the first direction is perpendicular with the second direction, and the second direction is the covering direction of the box and the lid, the utility model discloses be used to solve the technical problem of the production efficiency decline caused by the frequent replacement of the connecting pair.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a vacuum packaging mechanism. Background Technology

[0002] Vacuum packaging mechanisms are widely used in the packaging processes of electronic devices, optical components, and new energy materials. Their vacuum chambers typically consist of a housing and a cover. To achieve a sealed connection, the connection between the housing and the cover often uses a threaded joint along the mating direction. While this type of structure is easy to assemble and can guarantee a certain level of sealing, during long-term use, the threaded connection is frequently affected by thermal expansion and contraction, as well as alternating pressure changes within the vacuum chamber. This can cause the thread profile to wear, deform, or strip, leading to a decrease in the meshing accuracy of the threaded joint. Once the threaded structure is damaged, the sealing performance between the housing and the cover becomes difficult to guarantee, and leaks or air intake can easily occur inside the vacuum chamber, resulting in a decrease in vacuum level. To restore sealing performance, frequent bolt replacements or threaded hole repairs are required, increasing maintenance costs and necessitating downtime, severely impacting equipment production efficiency and operational stability. Utility Model Content

[0003] One objective of this invention is to provide a vacuum sealing mechanism that aims to solve the technical problem of decreased production efficiency caused by frequent replacement of connectors.

[0004] To achieve the above objectives, the present invention provides a solution as follows: a vacuum sealing mechanism, comprising: a housing, a cover, a first quick-release assembly, and a second quick-release assembly, wherein the cover is used to close the housing; the first quick-release assembly is detachably connected to the housing along a first direction; the second quick-release assembly detachably connects the cover to the first quick-release assembly along a second direction; the first direction is perpendicular to the second direction, and the second direction is the closing direction of the housing and the cover.

[0005] Optionally, the first quick-release assembly is detachably connected to the housing via a threaded connection, a snap-fit ​​connection, or a pin connection; the second quick-release assembly detachably connects the cover to the first quick-release assembly via a threaded connection, a snap-fit ​​connection, or a pin connection.

[0006] Optionally, the first quick-release component includes: The second quick-release assembly is disposed in the substrate along the first direction; A first fastener passes through the base and abuts against the second quick-release assembly.

[0007] Optionally, the second quick-release component includes an abutment surface; The substrate includes a positioning surface, and the abutting surface abuts against and fits against the positioning surface; The first fastener is disposed opposite to the positioning surface, and the first fastener and the positioning surface together clamp the second quick-release component, with at least a portion of the first fastener abutting and fitting against the second quick-release component.

[0008] Optionally, the first fastener is threadedly connected to the base body; The first quick-release assembly includes a second fastener, which connects the base and the housing along the second direction.

[0009] Optionally, the cover has a connecting hole that extends along the first direction, and the second quick-release assembly passes through the connecting hole and abuts against the cover in the first direction.

[0010] Optionally, the second quick-release assembly includes a first abutting portion and a connecting portion that are connected to each other. The connecting portion passes through the connecting hole and is connected to the first quick-release assembly. The first abutting portion is disposed on the side of the cover away from the first quick-release assembly and abuts against the cover.

[0011] Optionally, the safety component includes a drive element, a sensor, and a second limiting element; The second quick-release assembly includes a second abutment portion, which is connected to the connecting portion and spaced apart from the first abutment portion, and the cover is sandwiched between the first abutment portion and the second abutment portion; The cover has an insertion port on its circumferential sidewall. The insertion port communicates with the connection hole and is used to guide the connecting part into the connection hole.

[0012] Optionally, the vacuum sealing mechanism includes a light-transmitting plate, the housing has an observation port, and the light-transmitting plate is connected to the housing to cover the observation port.

[0013] Optionally, the vacuum sealing mechanism includes a frame and a limiting member. The cover is connected to the frame and can rotate relative to the frame between a first position and a second position. The frame has a first limiting hole and a second limiting hole. The limiting member can be selectively installed in the first limiting hole and the second limiting hole. When the cover is in the first position, the cover covers the box, and the limiting member is installed in the first limiting hole and abuts against the cover to restrict the rotation of the cover; When the cover is in the second position, the cover opens the box, and the limiting member is installed in the second limiting hole and abuts against the cover to restrict the rotation of the cover.

[0014] Optionally, the vacuum sealing mechanism further includes a drive, a sensor, and a trigger; The driving component is disposed on the frame and is used to drive the cover to rotate; The frame is provided with a mounting position for installing the trigger. The sensor is located at the mounting position to detect whether the trigger is installed at the mounting position and to send a detection signal to the drive to control whether the drive is locked.

[0015] Optionally, the vacuum sealing mechanism further includes a guide rod, and the frame is provided with a guide groove. The guide rod is slidably engaged with the guide groove and is used to slide along the guide groove when the cover rotates. The guide rod is connected to the cover and detachably connected to the frame to control the rotation of the cover.

[0016] Optionally, the vacuum sealing mechanism includes a buffer and an elastic element. The buffer is disposed on the frame and corresponds to the end of the guide groove to support the guide rod when it slides to the end of the guide groove. The elastic element is connected between the buffer and the frame.

[0017] The beneficial effects of this utility model are as follows: The vacuum sealing mechanism includes a housing, a cover, a first quick-release assembly, and a second quick-release assembly. The cover is used to close the housing. The first quick-release assembly is detachably connected to the housing along a first direction. The second quick-release assembly detachably connects the cover to the first quick-release assembly along a second direction. The first direction is the closing direction of the housing and the cover, and the second direction is perpendicular to the first direction.

[0018] Thus, since the force exerted by the lid on the box is mainly along the closing direction, this force will have a significant impact on the connection in the closing direction, i.e., the second direction, such as causing the connection to loosen. As for the box, it is mainly connected to the first quick-release assembly in the first direction, which is perpendicular to the second direction. Therefore, the connection structure here is not easily affected by the force along the closing direction. The connection that is easily affected by the closing force is mainly the connection between the lid and the first quick-release assembly, which can be solved by quickly replacing the first quick-release assembly. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the vacuum sealing mechanism provided in an embodiment of the present utility model; Figure 2This is provided by the embodiment of the present utility model. Figure 1 A magnified view of a portion of region A in the middle; Figure 3 This is a structural schematic diagram of the display box and lid provided in an embodiment of the present invention; Figure 4 This is provided by the embodiment of the present utility model. Figure 3 A magnified view of a portion of region B in the middle; Figure 5 This is a schematic diagram of the vacuum sealing mechanism provided in an embodiment of the present utility model; Figure 6 This is provided by the embodiment of the present utility model. Figure 5 A magnified view of a portion of region C.

[0021] Explanation of icon numbers: 20. Housing; 30. Cover; 31. Connecting hole; 32. Insertion port; 40. First quick-release assembly; 41. Base; 411. Positioning surface; 42. First fastener; 43. Second fastener; 50. Second quick-release assembly; 51. Abutting surface; 52. First abutting part; 53. Connecting part; 54. Second abutting part; 60. First direction; 70. Second direction; 80. Frame; 81. First limiting hole; 82. Second limiting hole; 83. Guide groove; 90. Limiting element; 100. Trigger element; 110. Driving element; 120. Sensor; 130. Guide rod; 140. Buffer element; 150. Elastic element. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Vacuum packaging mechanisms are widely used in the packaging processes of electronic devices, optical components, and new energy materials. Their vacuum chambers typically consist of a housing and a cover. To achieve a sealed connection, a threaded connection structure along the mating direction of the housing and cover is commonly used. While this type of structure is easy to assemble and can guarantee a certain degree of sealing effect, during long-term use, the threaded connection is frequently affected by changes in the internal air pressure of the vacuum chamber. This can lead to thread wear, deformation, or stripping. Frequent bolt replacements or thread hole repairs are required, increasing maintenance costs and necessitating downtime, severely impacting equipment production efficiency and operational stability.

[0024] There are two main reasons why threaded connections are prone to failure. First, when a vacuum is drawn, the internal air pressure decreases, while the external atmospheric pressure acts on the cover, pressing it inward against the housing and subjecting the bolts to axial compressive force. When the vacuum is released or the pressure is restored to normal, the internal gas exerts a reverse pressure on the cover, pushing it outward from the housing and subjecting the bolts to axial tensile force. Second, vacuum sealing equipment often involves heating and curing, cooling and evacuation processes during operation, resulting in significant temperature changes. The housing and cover (usually made of metal) expand when heated. If the degree of expansion differs from that of the bolts, an additional axial load will be formed at the joint surface. When cooling, a reverse stress is generated, causing the bolts to experience alternating thermal tensile and compressive forces. This stress is particularly pronounced when the thermal expansion coefficients of the bolt and housing materials differ (e.g., a combination of steel bolts and an aluminum alloy housing).

[0025] In summary, during the working cycles of evacuation, venting, heating, and cooling, the threaded pair between the housing and the cover of the vacuum chamber will mainly bear alternating loads along the bolt axis. These alternating loads can cause fatigue, wear, stripping, and loosening of the threaded pair, which is the main physical reason why the threaded connection structure of the vacuum chamber is prone to failure.

[0026] In this application, the housing 20 and the cover 30 are connected by a first quick-release assembly 40 and a second quick-release assembly 50. The first quick-release assembly 40 is detachably connected to the housing 20 along a first direction 60, and the second quick-release assembly 50 is detachably connected to the cover 30 along a second direction 70, which is the closing direction of the housing 20 and the cover 30, and is perpendicular to the first direction 60. Since the force exerted by the cover 30 on the housing 20 is mainly along the closing direction, this force will significantly affect the connection in the closing direction, i.e., the second direction 70, potentially causing loosening. However, the housing 20 is mainly connected to the first quick-release assembly 40 along the first direction 60, which is perpendicular to the second direction 70. Therefore, this connection structure is less susceptible to the force along the closing direction. The connection most easily affected by the closing force is the connection between the cover 30 and the first quick-release assembly 40, which can be resolved by quickly replacing the first quick-release assembly 40.

[0027] Please see Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the vacuum sealing mechanism provided in an embodiment of the present invention. Figure 2 This is provided by the embodiment of the present utility model. Figure 1 A magnified view of a portion of region A in the middle. Figure 3 This is a structural schematic diagram of the box body 20 and the cover body 30 provided in this embodiment of the utility model. Figure 4 This is provided by the embodiment of the present utility model. Figure 3 A magnified view of a portion of region B in the middle.

[0028] This utility model provides a vacuum sealing mechanism, including: a housing 20, a cover 30, a first quick-release assembly 40, and a second quick-release assembly 50. The cover 30 is used to cover the housing 20. The first quick-release assembly 40 is detachably connected to the housing 20 along a first direction 60. The second quick-release assembly 50 is detachably connected to the cover 30 and the first quick-release assembly 40 along a second direction 70. The first direction 60 is perpendicular to the second direction 70, and the second direction 70 is the closing direction of the housing 20 and the cover 30.

[0029] The following is an example of connecting the first quick-release component 40 to the housing 20 via threads, and connecting the cover 30 to the first quick-release component 40 via threads using the second quick-release component 50.

[0030] In practical applications, the first quick-release assembly 40 is mainly used to achieve a sealed lock between the housing 20 and the cover 30, thereby ensuring the airtightness of the vacuum chamber under vacuum conditions. The second quick-release assembly 50 is arranged in a direction perpendicular to the closing direction, so that when the mechanism is subjected to alternating loads of air pressure in the vacuum chamber and thermal expansion and contraction due to temperature changes, the force exerted by the cover 30 on the housing 20 is changed from the traditional tensile or compressive stress along the bolt axis to shear stress along the bolt radial direction.

[0031] Under axial tension, the threaded pair needs to withstand a large normal pressure and relative sliding friction. After radial force, the normal pressure direction of the threaded pair is no longer frequently loaded and unloaded, the thread profile is not easily worn or deformed, the anti-slip performance is improved, and it will not cause significant axial expansion and contraction deformation. This effectively avoids fatigue failure and wear failure of the threaded pair between the first quick-release component 40 and the housing 20 due to repeated tension and compression, and extends the service life of the threaded pair between the first quick-release component 40 and the housing 20. As a result, if the threaded pair between the first quick-release component 40 and the second quick-release component 50 wears and fails, only the first quick-release component 40 and the second quick-release component 50 need to be replaced, without replacing the housing 20 and the cover 30, thereby improving replacement efficiency and thus improving production efficiency.

[0032] Therefore, by changing the force direction of the connecting pair, this structure enables the vacuum sealing mechanism to have higher fatigue resistance and airtight reliability under alternating pressure and temperature conditions, reduces the risk of seal failure caused by damage to the threaded pair, and improves the service life and maintenance efficiency of the quick-release structure.

[0033] In one embodiment, the first quick-release component 40 is detachably connected to the housing 20 by means of threaded connection, snap-fit ​​connection or pin connection; the second quick-release component 50 detachably connects the cover 30 to the first quick-release component 30 by means of threaded connection, snap-fit ​​connection or pin connection.

[0034] In this embodiment, the first quick-release component 40 is threadedly connected to the housing 20, and the second quick-release component 50 is threadedly connected to the cover 30 and the first quick-release component 30. The first quick-release component 40 and the second quick-release component 50 are plugged into each other.

[0035] In other embodiments of this application, if the second quick-release component 50 is connected to the first quick-release component 40 by a snap-fit, then when the snap-fit ​​fails, only the first quick-release component 40 and the second quick-release component 50 need to be replaced, without needing to replace the housing 20, thereby improving replacement efficiency and thus improving production efficiency.

[0036] If the first quick-release assembly 40 is connected to the housing 20 by a pin, and the second quick-release assembly 50 is connected to the first quick-release assembly 40 by a pin, then the force applied by the cover 30 to the second quick-release assembly 50 is a force along the second direction 70, that is, the pin is subjected to a force along its own axis. This is equivalent to repeated insertion and removal of the pin, causing deformation and wear of the hole used to engage the pin, thereby accelerating the failure of the pin connection between the second quick-release assembly 50 and the first quick-release assembly 40. When the pin connection between the second quick-release assembly 50 and the first quick-release assembly 40 fails, only the first quick-release assembly 40 and the second quick-release assembly 50 need to be replaced, without replacing the housing 20, thereby improving replacement efficiency and thus improving production efficiency. Furthermore, the second quick-release assembly 50 applies force to the first quick-release assembly 40 along the second direction 70. Since the pin connection between the first quick-release assembly 40 and the housing 20 is set along the first direction 60, the pin between the first quick-release assembly 40 and the housing 20 is subjected to shear force along its own radial direction, thereby reducing axial deformation and wear and extending the service life of the pin connection between the first quick-release assembly 40 and the housing 20.

[0037] For descriptions of other detachable connection methods, please refer to threaded connections, snap-fit ​​connections, and pin connections; they will not be elaborated upon here.

[0038] In one embodiment, see Figure 4 The first quick-release component 40 includes: The second quick-release assembly 50 is inserted through the base 41 along the second direction 70; The first fastener 42 passes through the base 41 and abuts against the second quick-release assembly 50.

[0039] In practical applications, by setting a base 41 and a first fastener 42 in the first quick-release assembly 40, the second quick-release assembly 50 can be inserted into the base 41 along the second direction 70 and pressed and fixed by the first fastener 42, thus forming a stable quick-release locking structure. By limiting the installation posture of the second quick-release assembly 50 by the base 41, it can be ensured that the insertion direction of the second quick-release assembly 50 and the cover 30 is consistent with the closing direction of the housing 20, achieving accurate guidance of the assembly direction and avoiding changes in the sealing surface gap caused by misalignment or uneven force. The first fastener 42 applies a preload force to the second quick-release assembly 50, so that the second quick-release assembly 50 remains reliably locked under the alternating load of the vacuum chamber air pressure, thereby preventing the risk of leakage caused by micro-movement or loosening. This structure not only improves the positioning accuracy and assembly stability of the quick-release assembly, but also, through a reasonable force transmission path, ensures that the connection mainly bears radial shear stress, reducing the risk of fatigue wear at the threaded pair or contact surface, thereby extending the service life of the quick-release assembly and improving the airtight reliability of the vacuum chamber.

[0040] In this embodiment, the first fastener 42 is threadedly connected to the base 41. In other embodiments of this application, the first fastener 42 and the base 41 may also be plugged in or snapped together.

[0041] Further, see Figure 4 The second quick-release component 50 includes an abutment surface 51; The substrate 41 includes a positioning surface 411, and the abutting surface 51 abuts against and fits the positioning surface 411. The first fastener 42 is disposed opposite to the positioning surface 411, and the first fastener 42 and the positioning surface 411 together clamp the second quick-release component 50. At least part of the first fastener 42 abuts against and fits against the second quick-release component 50.

[0042] In practical applications, by providing an abutment surface 51 on the second quick-release assembly 50 and a positioning surface 411 on the base 41 that fits therewith, a stable surface contact fit is formed between the two during assembly. This precisely defines the installation position and orientation of the second quick-release assembly 50, avoiding locking offset or incomplete sealing due to inaccurate positioning. When the first fastener 42 is positioned opposite to the positioning surface 411 and clamps the second quick-release assembly 50 together, the second quick-release assembly 50 forms a double-sided constraint structure under the clamping force, allowing the load to be evenly transmitted between the abutment surface 51 and the positioning surface 411, thereby significantly reducing the problem of unilateral force concentration. The first fastener 42 is at least partially attached to and abuts the second quick-release assembly 50, providing a stable preload force and preventing the quick-release assembly from micro-movement or loosening under repeated pressure changes or thermal expansion and contraction in the vacuum chamber. This double-sided clamping and surface contact fit structure arrangement improves connection rigidity and vibration resistance, ensuring the quick-release assembly maintains a reliable locked state during long-term operation, further enhancing the stability of the vacuum chamber sealing connection.

[0043] In this embodiment, there are two first fasteners 42, which are disposed opposite to each other on both sides of the second quick-release assembly 50 to clamp the second quick-release assembly 50 from two opposite positions. In other embodiments of this application, there is one second fastener 43, which, together with the positioning surface 411, clamps the second quick-release assembly 50.

[0044] In this embodiment, the second quick-release component 50 has a cylindrical or frustum-shaped structure, with a flat abutment surface 51, and is disposed opposite to the first fastener 42. The end face of the first fastener 42 that abuts against the abutment surface 51 is flat, allowing the first fastener 42 to fit against the abutment surface 51 and press against the second quick-release component 50 through the abutment surface 51. In other embodiments of this application, the abutment surface 51 can be an inwardly concave arc surface or a plurality of adjacent continuous surfaces arranged at an angle. In this case, the end face of the first fastener 42 is an outwardly convex shape that matches the shape of the abutment surface 51. Similarly, the abutment surface 51 can also be an outwardly convex shape, in which case the end face of the first fastener 42 is an inwardly concave shape that matches the abutment surface 51. This shape includes a bent surface or a curved surface, etc.

[0045] Optionally, see Figure 4 The first fastener 42 is threadedly connected to the base 41; The first quick-release assembly 40 includes a second fastener 43, which connects the base 41 and the housing 20 along the second direction 70.

[0046] In practical applications, by threading the first fastener 42 to the base 41, the first fastener 42 can move axially relative to the base 41, thereby adjusting the clamping force on the second quick-release assembly 50. This ensures a suitable pre-tightening state under different sealing requirements, improving assembly flexibility and airtightness stability. Simultaneously, the second fastener 43 connects the base 41 and the housing 20 along the first direction 60, making the direction of force transmission perpendicular to the closing direction. This transforms the main load into a shear stress distribution along the bolt radial direction, avoiding fatigue cracks, tooth flank wear, or loosening failures caused by alternating tension and compression in traditional threaded pairs. Through this orthogonal force sharing method, the first fastener 42 provides axial clamping and locking, while the second fastener 43 provides radial positioning and shear resistance, forming a complementary bidirectional locking system. This significantly improves the overall structural rigidity and fatigue resistance of the quick-release assembly, extends the service life of the quick-release connection, and maintains the sealing reliability of the vacuum chamber under long-term pressure and temperature cycling conditions.

[0047] In this embodiment, the first quick-release component 40 has a through hole, the housing 20 has a threaded hole, the bolt passes through the through hole and is threadedly connected to the housing 20 through the threaded hole, and the bolt head abuts against the side of the first quick-release component 40 away from the housing 20.

[0048] In one embodiment, reference is made to Figure 4 The cover 30 has a connecting hole 31 that extends along the second direction 70, and the second quick-release assembly 50 passes through the connecting hole 31 and abuts against the cover 30 in the first direction 60.

[0049] In practical applications, by opening a connecting hole 31 in the cover 30 along the second direction 70, and having the second quick-release assembly 50 pass through the connecting hole 31 and abut against the cover 30 in the second direction 70, precise guidance and facing locking between the quick-release assembly and the cover 30 are achieved. The second quick-release assembly 50 passes through the connecting hole 31 along the closing direction of the cover 30, which can achieve automatic alignment during assembly, ensuring the precise relative position of the cover 30 and the housing 20, and avoiding sealing surface offset or stress concentration caused by misalignment.

[0050] Optionally, refer to Figure 1 The second quick-release component 50 includes a first abutting part 52 and a connecting part 53 connected to each other. The connecting part 53 passes through the connecting hole 31 and is connected to the first quick-release component 40. The first abutting part 52 is disposed on the side of the cover 30 away from the first quick-release component 40 and abuts against the cover 30.

[0051] In practical applications, by providing an interconnected first abutment portion 52 and a connecting portion 53 in the second quick-release assembly 50, a stable double-sided force-bearing structure is formed between the cover 30 and the first quick-release assembly 40. The connecting portion 53 passes through the connecting hole 31 of the cover 30 and connects with the first quick-release assembly 40, enabling accurate positioning and axial guidance during assembly, ensuring that the locking direction is consistent with the closing direction of the cover 30, thereby avoiding deformation of the sealing surface caused by off-center loading. The first abutment portion 52 is located on the side of the cover 30 away from the first quick-release assembly 40 and abuts against the cover 30, enabling the force to be evenly distributed to the surface of the cover 30 when the locking force is applied, avoiding localized stress concentration that could lead to deformation of the cover 30 or crushing of the sealing gasket.

[0052] In this embodiment, the outer diameter of the first abutting part 52 is larger than the inner diameter of the connecting hole 31.

[0053] Optionally, refer to Figure 1 , Figure 2 and Figure 5 The second quick-release component 50 includes a second abutting part 54, which is connected to the connecting part 53 and spaced apart from the first abutting part 52. The cover 30 is sandwiched between the first abutting part 52 and the second abutting part 54. The cover 30 has an insertion port 32 on its circumferential side wall. The insertion port 32 communicates with the connection hole 31 and is used to guide the connecting part 53 into the connection hole 31.

[0054] In practical applications, by setting mutually spaced first abutment portions 52 and second abutment portions 54 on the second quick-release assembly 50, and clamping the cover 30 between them, a stable double-sided clamping structure is formed at the position of the cover 30. This clamping method allows the cover 30 to be subjected to uniform clamping force from both sides during the locking process, avoiding warping or uneven stress on the sealing surface caused by unilateral loading, thereby ensuring that the vacuum chamber maintains good airtightness under alternating high and low pressure conditions. At the same time, the second abutment portion 54 is integrally connected with the connecting portion 53, allowing the locking force to be directly transmitted to the first quick-release assembly 40 through the connecting portion 53, forming a continuous and stable mechanical transmission path, improving the overall rigidity and fatigue resistance of the structure. The insertion port 32 provided on the circumferential side wall of the cover 30 communicates with the connecting hole 31, allowing the second quick-release assembly 50 to be inserted radially and quickly engaged with the connecting hole 31, thus eliminating the need for axial movement along the closing direction during quick-release operation, significantly shortening assembly and disassembly time. Through this radial insertion and double-sided clamping structural design, the vacuum sealing mechanism maintains airtightness while also ensuring ease of assembly and durability.

[0055] In this embodiment, the first abutting part 52 is fixedly connected to the connecting part 53, and the second abutting part 54 is threadedly connected to the connecting part 53. It can be understood that the first abutting part 52 and the connecting part 53 form a bolt, wherein the first abutting part 52 is the bolt head, the connecting part 53 is the bolt shank, and the second abutting part 54 is a nut. The first abutting part 52 is threadedly connected to the second abutting part 54 through the connecting part 53.

[0056] A nut is inserted into the base 41, and a first fastener 42 abuts against the nut. A bolt is inserted into the connecting hole 31 and threadedly connected to the nut, with the bolt head abutting against the cover 30. The outer diameter of the bolt shank is smaller than the width of the insertion port 32. When the connection pair consisting of the bolt and nut is damaged and cannot be disassembled, the first fastener 42 is loosened, and then the bolt is moved so that the bolt shank protrudes from the insertion port 32 through the connecting hole 31, allowing a new second quick-release piece to be replaced.

[0057] Optionally, refer to Figure 1 , Figure 5 and Figure 6 The vacuum sealing mechanism includes a light-transmitting plate, and the housing 20 has an observation port. The light-transmitting plate is connected to the housing 20 to cover the observation port.

[0058] In practical applications, this structure incorporates a light-transmitting plate within the vacuum sealing mechanism, with the plate covering the observation port of the housing 20. This allows operators to observe the internal state of the vacuum chamber in real time without disrupting the vacuum environment. The light-transmitting plate, covering the observation port, ensures airtightness while allowing light transmission, enabling direct visualization and monitoring of the internal sealing process, workpiece status, or gas changes. This facilitates operational adjustments and fault diagnosis. The sealed connection between the light-transmitting plate and the housing 20 can be achieved through sealing rings, adhesive bonding, or embedding, effectively preventing gas leakage and the entry of external impurities into the vacuum chamber, maintaining a stable internal vacuum environment. This design increases the observability and operational safety of the equipment without compromising vacuum performance, avoiding the time-consuming vacuuming and structural wear caused by frequent opening of the cover 30 for inspection, thereby improving production efficiency and extending the equipment's lifespan.

[0059] Optionally, refer to Figure 6 The vacuum sealing mechanism includes a frame 80 and a limiting member 90. The cover 30 is connected to the frame 80 and can rotate relative to the frame 80 between a first position and a second position. The frame 80 has a first limiting hole 81 and a second limiting hole 82. The limiting member 90 can be selectively installed in the first limiting hole 81 and the second limiting hole 82. When the cover 30 is in the first position, the cover 30 covers the box 20, and the limiting member 90 is installed in the first limiting hole 81 and abuts against the cover 30 to restrict the rotation of the cover 30. When the cover 30 is in the second position, the cover 30 opens the box 20, and the limiting member 90 is installed in the second limiting hole 82 and abuts against the cover 30 to restrict the rotation of the cover 30.

[0060] In practical applications, this structure, by providing a first limiting hole 81 and a second limiting hole 82 on the frame 80, and configuring a limiting member 90 that can be switched between the two holes, enables precise rotational limiting control of the cover 30 in different working positions. When the cover 30 is in the first position, the limiting member 90 is installed in the first limiting hole 81 and abuts against the cover 30, thereby limiting the angular position of the cover 30 in the closed state, preventing the cover 30 from loosening or deflecting due to external force or vibration, and ensuring the sealing stability between the housing 20 and the cover 30. When the cover 30 rotates to the second position, the limiting member 90 is installed in the second limiting hole 82 and abuts against the cover 30, so that the cover 30 is firmly held in the open state, preventing collisions or falling back caused by accidental rotation, and improving operational safety and maintenance convenience. Through this switchable limiting design, reliable fixation of both ends of the cover 30 can be achieved without adding a complex drive structure, simplifying the mechanism structure and improving assembly flexibility. Meanwhile, the mechanical fit between the limiting component 90 and the limiting hole ensures repeatability and positioning accuracy, so that the cover 30 can maintain a consistent sealing posture and movement trajectory after multiple opening and closing cycles, thereby improving the structural reliability and long service life of the vacuum sealing mechanism.

[0061] Optionally, refer to Figure 6 The vacuum sealing mechanism further includes a drive unit 110, a sensor 120, and a trigger unit 100; The driving component 110 is disposed on the frame 80, and the driving component 110 is used to drive the cover 30 to rotate; The frame 80 is provided with a mounting position for mounting the trigger 100. The sensor 120 is located at the mounting position and is used to detect whether the trigger 100 is installed at the mounting position, and send a detection signal to the drive 110 to control whether the drive 110 is locked.

[0062] In practical applications, this structure achieves intelligent control and safe management of the cover 30's rotation by incorporating a drive unit 110, a sensor 120, and a trigger unit 100 within the vacuum sealing mechanism. The drive unit 110 drives the cover 30 to rotate on the frame 80. The sensor 120 detects whether the trigger unit 100 is correctly installed and feeds back the detection signal to the drive unit 110 to control its locking state. This ensures that the cover 30 can only rotate freely when the trigger unit 100 is in position, preventing misoperation or accidental movement of the cover 30 due to the trigger unit 100 not being installed or being installed incorrectly. This intelligent control mechanism enables dynamic locking and unlocking during the closing and opening process, preventing the cover 30 from rotating beyond its design range and causing collisions, sealing failures, or equipment damage, while also improving operational safety. Through the cooperation of the trigger unit 100 and the sensor 120, the status of the cover 30 can be automatically determined without manual intervention, achieving automated monitoring and operational protection. This ensures reliable operation of the vacuum sealing mechanism under multiple opening and closing cycles, while reducing human error and improving equipment maintenance and usage efficiency.

[0063] Optionally, refer to Figure 6 The vacuum sealing mechanism further includes a guide rod 130, and the frame 80 is provided with a guide groove 83. The guide rod 130 is slidably engaged with the guide groove 83 and is used to slide along the guide groove 83 when the cover 30 rotates. The guide rod 130 is connected to the cover 30 and detachably connected to the frame 80 to control the rotation of the cover 30.

[0064] In practical applications, this structure achieves precise guidance and stable control of the cover 30 during rotation by setting a guide rod 130 in the vacuum sealing mechanism and sliding it into the guide groove 83 of the frame 80. The guide rod 130 is connected to the cover 30 and detachably connected to the frame 80 by bolts. When the cover 30 needs to rotate, the bolts can be unscrewed to release the connection between the guide rod 130 and the frame 80, allowing the cover 30 to rotate smoothly along the guide groove 83. After the cover 30 returns to its original position, the guide rod 130 is then fixed to the frame 80 by bolts to achieve stable locking. This detachable connection method not only ensures the guiding accuracy and smooth movement of the cover 30 during rotation, avoiding misalignment or local deformation of the sealing surface caused by eccentricity or shaking, but also improves the safety and stability of the cover 30's position by fixing the guide rod 130 in the non-operating state. The sliding fit guide structure effectively distributes radial and axial loads, reduces stress concentration in connectors and quick-release components, and reduces the risk of wear on threaded parts and locking components, thereby improving the reliability, durability, and operational safety of the vacuum sealing mechanism under repeated opening and closing cycles.

[0065] Furthermore, referring to Figure 6The vacuum sealing mechanism includes a buffer 140 and an elastic element 150. The buffer 140 is disposed on the frame 80 and corresponds to the end of the guide groove 83 to support the guide rod 130 when it slides to the end of the guide groove 83. The elastic element 150 is connected between the buffer 140 and the frame 80.

[0066] The vacuum sealing mechanism includes a buffer 140 and an elastic element 150. The buffer 140 is disposed at the end of the guide groove 83, and the elastic element 150 is connected between the buffer 140 and the frame 80. The buffer 140 is used to support the guide rod 130.

[0067] In practical applications, the buffer 140 bears the inertia of the guide rod 130 moving in the guide groove 83, effectively dispersing the impact load during the sliding process of the guide rod 130 and avoiding direct action on the connection 53 between the guide rod 130 and the cover 30. The elastic element 150 provides elastic support between the buffer 140 and the frame 80, which can absorb part of the motion impact.

[0068] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0069] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0070] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0071] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A vacuum sealing mechanism, characterized in that, include: Box; A cover, used to close the box body; A first quick-release assembly is detachably connected to the housing along a first direction; The second quick-release assembly detachably connects the cover to the first quick-release assembly along the second direction; The first direction is perpendicular to the second direction, and the second direction is the closing direction of the box and the cover.

2. The vacuum sealing mechanism according to claim 1, characterized in that, The first quick-release component is detachably connected to the housing via a threaded connection, a snap-fit ​​connection, or a pin connection; the second quick-release component detachably connects the cover to the first quick-release component via a threaded connection, a snap-fit ​​connection, or a pin connection.

3. The vacuum sealing mechanism according to claim 1, characterized in that, The first quick-release component includes: The second quick-release assembly is disposed in the substrate along the second direction; A first fastener passes through the base and abuts against the second quick-release assembly.

4. The vacuum packaging mechanism according to claim 3, characterized in that, The second quick-release component includes an abutment surface; The substrate includes a positioning surface, and the abutting surface abuts against and fits against the positioning surface; The first fastener is disposed opposite to the positioning surface, and the first fastener and the positioning surface together clamp the second quick-release component, with at least a portion of the first fastener abutting and fitting against the second quick-release component.

5. The vacuum packaging mechanism according to claim 3, characterized in that, The first fastener is threadedly connected to the base body; The first quick-release assembly includes a second fastener, which connects the base and the housing along the second direction.

6. The vacuum sealing mechanism according to claim 1, characterized in that, The cover has a connecting hole that extends along the second direction, and the second quick-release assembly passes through the connecting hole and abuts against the cover in the second direction.

7. The vacuum sealing mechanism according to claim 6, characterized in that, The second quick-release assembly includes a first abutting portion and a connecting portion that are connected to each other. The connecting portion passes through the connecting hole and is connected to the first quick-release assembly. The first abutting portion is disposed on the side of the cover away from the first quick-release assembly and abuts against the cover.

8. The vacuum sealing mechanism according to claim 7, characterized in that, The second quick-release assembly includes a second abutment portion, which is connected to the connecting portion and spaced apart from the first abutment portion, and the cover is sandwiched between the first abutment portion and the second abutment portion; The circumferential sidewall of the cover has an insertion port, which communicates with the connection hole and is used to guide the connecting part into the connection hole.

9. The vacuum sealing mechanism according to claim 1, characterized in that, The vacuum sealing mechanism includes a light-transmitting plate, and the box body has an observation port. The light-transmitting plate is connected to the box body to cover the observation port.

10. The vacuum sealing mechanism according to claim 1, characterized in that, The vacuum sealing mechanism includes a frame and a limiting member. The cover is connected to the frame and can rotate relative to the frame between a first position and a second position. The frame has a first limiting hole and a second limiting hole. The limiting member can be selectively installed in the first limiting hole and the second limiting hole. When the cover is in the first position, the cover covers the box, and the limiting member is installed in the first limiting hole and abuts against the cover to restrict the rotation of the cover; When the cover is in the second position, the cover opens the box, and the limiting member is installed in the second limiting hole and abuts against the cover to restrict the rotation of the cover.

11. The vacuum sealing mechanism according to claim 10, characterized in that, The vacuum sealing mechanism also includes a drive component, a sensor, and a trigger component; The driving component is disposed on the frame and is used to drive the cover to rotate; The frame is provided with a mounting position for installing the trigger. The sensor is located at the mounting position to detect whether the trigger is installed at the mounting position and to send a detection signal to the drive to control whether the drive is locked.

12. The vacuum sealing mechanism according to claim 10, characterized in that, The vacuum sealing mechanism also includes a guide rod, and the frame is provided with a guide groove. The guide rod is slidably engaged with the guide groove and is used to slide along the guide groove when the cover rotates. The guide rod is connected to the cover and detachably connected to the frame to control the rotation of the cover.

13. The vacuum sealing mechanism according to claim 12, characterized in that, The vacuum sealing mechanism includes a buffer and an elastic element. The buffer is disposed on the frame and corresponds to the end of the guide groove to support the guide rod when it slides to the end of the guide groove. The elastic element is connected between the buffer and the frame.

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