Inner support joint filling device and using method thereof

Abstract

The invention provides an inner supporting joint filling device and a using method thereof. The inner supporting joint filling device is used for filling a shell inner cavity joint. The inner supporting joint filling device comprises a sealing part, a supporting assembly and a glue injection assembly, the sealing part is arranged in an inner cavity of the shell and located at the end, close to an opening of the shell, of the tile, and an exhaust hole and a glue injection hole are formed in the sealing part in a penetrating mode; the supporting assembly is arranged in the inner cavity of the shell and located on the side, away from the inner wall of the shell, of the tile, and the supporting assembly is used for increasing the size to abut against the tile and the sealing piece and sealing the side, away from the inner wall of the shell, of the to-be-filled gap. The glue injection assembly is communicated with the glue injection hole; the sides, away from the inner wall of the shell, of the to-be-filled gaps are sealed through the supporting assemblies, the ends, close to the opening of the shell, of the tiles are sealed in cooperation with the sealing pieces, and therefore the multiple to-be-filled gaps are combined to form a sealed glue injection area, and continuous glue injection of the glue injection assemblies through the glue injection holes is facilitated; and moreover, the glue in the gap to be filled is uniformly distributed, the glue filling efficiency is greatly improved, and the operation is simple, convenient and safe.

Description

Technical Field

[0001] This application belongs to the field of colloid caulking technology, and particularly relates to an internal support caulking device and its usage method. Background Technology

[0002] During the processing and assembly of shell-type structural products, some products require the assembly of conformal tiles that match the inner contour of the shell, and the gaps formed between the tiles need to be filled with adhesive.

[0003] These types of shell products typically have the following structural characteristics: First, the shell is mostly a rotating body or a closed body with an irregular shape, and its interior is a blind cavity structure with a small space and a single closed end; Second, after the tiles are bonded to the shell with adhesive, a regularly distributed grid-like gap is formed in the inner cavity; Third, it is required that these gaps be filled with adhesive and that after curing, a cured adhesive is formed that is flush with the surface of the tile to meet performance requirements such as sealing, airtightness, or strength.

[0004] Currently, the existing technology mainly uses manual glue filling, which requires operators to judge the filling status of the glue with the naked eye and fill the gaps by injecting glue point by point and repeatedly turning the shell.

[0005] However, due to the fluidity of the adhesive and the blind-hole structure of the shell, the adhesive injection operation can only be carried out point by point in the vertical direction, and it is necessary to wait for the adhesive to cure before flipping to the next filling position, resulting in low efficiency of the overall adhesive filling process. Secondly, in terms of adhesive volume control, due to the limitations of manual judgment and the fluidity of the adhesive, it is very easy to have insufficient adhesive or excess adhesive. Insufficient adhesive will lead to incomplete filling and affect the sealing effect; while excess adhesive needs to be manually removed, increasing the complexity of the process. In addition, due to the narrow internal space of the shell, the space for manual operation of tools and hand movement is limited, which greatly increases the difficulty of operation and requires a high level of technical proficiency from the operators. During the adhesive filling process, the adhesive often generates heat and harmful gas volatilization, and manual operation at close range for a long time poses health hazards and safety risks. Summary of the Invention

[0006] To address the shortcomings of related technologies, this application provides an internal support caulking device and its usage method. The device uses a support component to seal the side of the gap to be filled away from the inner wall of the shell, and a sealing component to seal the end of the tile near the opening of the shell. This allows multiple gaps to be filled to form a sealed injection area, facilitating continuous injection of adhesive through the injection hole and ensuring uniform distribution of adhesive within the gap. This significantly improves filling efficiency and is simple and safe to operate.

[0007] On one hand, this application provides an internal support and gap-filling device for filling gaps in the inner cavity of a shell. The shell is open at one end and hollow inside. Multiple tiles are provided on the inner wall of the shell, and multiple interconnected gaps to be filled exist between each tile and between each tile and the inner wall of the shell. The internal support and gap-filling device includes: A sealing member is provided in the inner cavity of the housing and located at the end of the tile near the opening of the housing. The sealing member is provided with an exhaust hole and an injection hole, and the exhaust hole and the injection hole are respectively connected to the gap to be filled. A support assembly is disposed within the inner cavity of the housing and located on the side of the tile away from the inner wall of the housing. The support assembly is used to increase its own volume to press against the tile and the closure member, and to close the gap to be filled on the side away from the inner wall of the housing; or, the support assembly is used to decrease its own volume to move away from the tile and the closure member. The glue injection assembly is connected to the glue injection hole, and the glue injection assembly is used to inject glue into the gap to be filled through the glue injection hole.

[0008] In some embodiments, the support component includes: An airbag is disposed in the inner cavity of the housing and located on the side of the tile away from the inner wall of the housing; An air pump is located at the end of the airbag away from the housing, and the air pump is used to inflate or de-inflate the airbag.

[0009] In some embodiments, after the air pump inflates the airbag to increase its volume, the outer wall of the airbag, the inner wall of the housing, and the closure member near the end of the tile form a closed glue injection space. The glue injection space includes a plurality of interconnected gaps to be filled, and the glue injection space connects the vent hole and the glue injection hole.

[0010] In some embodiments, a positioning hole is provided on the inner wall of the housing cavity relative to the housing opening, and the support assembly further includes: A support rod has one end passing through the airbag and extending into the positioning hole, and the other end connected to the air pump. The support rod is hollow inside and has at least two ventilation holes. The air pump inflates or deflates the airbag through the two ventilation holes.

[0011] In some embodiments, the internal support caulking device further includes: A limiting structure is provided on the support rod to cooperate with the positioning hole to limit the airbag, so as to prevent the airbag from moving along the axial or radial direction of the support rod.

[0012] In some embodiments, the limiting structure further includes: A limiting step is fixed on the support rod and located between the air pump and the airbag. The limiting step is used to press against the airbag when the support rod extends into the positioning hole along its axial direction, so as to prevent the airbag from moving away from the housing along the axial direction of the support rod.

[0013] In some embodiments, the internal support caulking device further includes: A sealing element is disposed between the closure element and the airbag. The sealing element is used to cooperate with the closure element after the airbag is inflated to seal the end of the gap to be filled facing the opening of the shell.

[0014] In some embodiments, the dispensing assembly includes: A glue dispensing machine is located on one side of the glue dispensing hole; The connecting tube is connected at one end to the dispensing machine and at the other end to the dispensing hole.

[0015] In some embodiments, the vent hole and the glue injection hole are disposed opposite each other at the upper and lower ends of the closure member along the direction of gravity.

[0016] On the other hand, a method of using an internal support filling device is also provided, for filling the gaps in the inner cavity of the shell with adhesive through the internal support filling device described in any of the above claims, the method of using the internal support filling device includes: In the sealing step, after the sealing member is installed on the tile near the opening of the shell, the volume of the support component in the inner cavity of the shell is increased to press the tile and the sealing member against the inner wall of the shell. At the same time, the support component seals the side of the gap to be filled away from the inner wall of the shell, so that the gap to be filled is connected to the atmosphere only through the glue injection hole and the vent hole. In the glue injection step, the glue injection component continuously injects glue into the gap to be filled through the glue injection hole until glue overflows at the vent hole, at which point the glue injection stops and the overflowing glue at the vent hole is cleaned up. In the removal step, after the adhesive in the gap to be filled cools and solidifies, the volume of the support component in the inner cavity of the housing is reduced, and then the support component and the closure are removed through the opening of the housing, thus completing the adhesive filling of the gap in the inner cavity of the housing.

[0017] In summary, this application provides an internal support caulking device and its usage method. The support assembly seals the side of the gap to be filled away from the inner wall of the shell, and a sealing component seals the end of the tile near the shell opening. This allows multiple gaps to be filled to form a sealed injection area, facilitating continuous injection of adhesive through the injection hole and ensuring uniform adhesive distribution within the gap, significantly improving filling efficiency. The device is simple and safe to operate. The combination of an airbag and an air pump achieves rapid and continuously controllable support and sealing through pneumatic operation. The airbag also offers flexible adaptation to accommodate subtle differences in the shell's internal structure, improving sealing reliability. The sealed injection space effectively prevents adhesive leakage or gas residue, ensuring that the cured adhesive forms a flat surface with the tile's side away from the shell. It also assists the injection assembly in controlling the injection and venting processes, achieving precise filling and improving the accuracy and efficiency of the injection operation. The support rod simplifies the gas path. The layout enhances the structural stability of the support components, effectively preventing airbag sealing failure due to uneven pressure or positional displacement. A limiting structure effectively suppresses unexpected displacement of the airbag after inflation by the air pump, ensuring it remains in its active position and providing stable support for the tiles and closure components, as well as sealing the gaps to be filled. The sealing component further enhances its sealing performance towards the opening of the shell, adapting to situations with high sealing requirements or irregular shapes at the shell opening. Based on the flexible fit between the closure component and the airbag, the closure component automatically adapts its contact shape according to different tile arrangements and gap configurations, ensuring sealing integrity and reducing reliance on shell machining precision. By arranging the vent and injection holes at the upper and lower ends of the closure component, with the injection hole below and the vent above, a natural flow path is formed in accordance with gravity, facilitating observation and control of the injection progress and preventing problems such as leakage, cavities, or air bubbles.

[0018] Other features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the first cross-section of the internal support and joint filling device of this application; Figure 2 This is a schematic diagram of the second cross section of the internal support and caulking device of this application.

[0020] 100. Housing; 101. Positioning hole; 200. Tile; 300. Sealing component; 301. Vent hole; 302. Glue injection hole; 400. Support assembly; 401. Support rod; 4011. Vent hole; 402. Airbag; 500. Glue injection assembly; 501. Glue dispensing machine; 502. Connecting pipe; 600. Limiting step. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific Implementation Example 1 Reference Appendix Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the first cross-section of the internal support and joint filling device of this application; Figure 2 This is a schematic diagram of the second cross-section of the internal support and joint filling device of this application; the specific embodiments are described below with reference to the above figures.

[0026] Reference Appendix Figure 1 and Figure 2 This application provides an internal support filling device for filling the gaps in the inner cavity of a shell 100. The shell 100 is open at one end and has a hollow inner cavity. Multiple tiles 200 are provided on the inner wall of the shell 100. Multiple interconnected gaps to be filled are present between each tile 200 and between the tile 200 and the inner wall of the shell 100.

[0027] The internal support caulking device includes a sealing member 300, a support assembly 400, and an adhesive injection assembly 500. The sealing member 300 is located in the inner cavity of the housing 100 and at the end of the tile 200 near the opening of the housing 100. The sealing member 300 is provided with an exhaust hole 301 and an adhesive injection hole 302, which are respectively connected to the gap to be filled. The support assembly 400 is located in the inner cavity of the housing 100 and at the side of the tile 200 away from the inner wall of the housing 100. The support assembly 400 is used to increase its own volume to press against the tile 200 and the sealing member 300, and to close the side of the gap to be filled away from the inner wall of the housing 100. Alternatively, the support assembly 400 is used to reduce its own volume to move away from the tile 200 and the sealing member 300. The adhesive injection assembly 500 is connected to the adhesive injection hole 302 and is used to inject adhesive into the gap to be filled through the adhesive injection hole 302.

[0028] Specifically, the shell 100 is a rotating body or a closed body with an irregular structure. The shell 100 is hollow inside and open at one end. Its interior is a blind cavity structure with a small space and closed at one end.

[0029] The closure 300 is an end face pressure ring adapted to the shape of the open end of the housing 100, used to cooperate with the support assembly 400 to close the open end of the housing 100.

[0030] The sealing component 300 is made of non-adhesive colloids, including PE (polyethylene), PVC (polyvinyl chloride), and PET (polyethylene terephthalate). The material for the sealing component 300 needs to be selected according to the colloid material and its properties.

[0031] The sealing component 300 is provided with an exhaust hole 301 and an injection hole 302. The exhaust hole 301 and the injection hole 302 enable communication between the outside atmosphere and the gap to be filled. This ensures that when the injection component 500 injects glue into the gap to be filled through the injection hole 302, the exhaust hole 301 exhausts at the other end to stabilize the air pressure in the gap to be filled, thereby making the injection smooth and the glue evenly distributed.

[0032] The support component 400 is located on the side of the tile 200 away from the inner wall of the housing 100. By increasing its volume, the tile 200 and the sealing component 300 are made to fit tightly against the inner wall of the housing 100, and the boundary of the gap to be filled away from the side wall of the housing 100 is sealed. This ensures that the glue injection area formed by the combination of multiple interconnected gaps to be filled is only connected to the outside atmosphere through the vent hole 301 or the glue injection hole 302.

[0033] The glue injection component 500 is located on one side of the glue injection hole 302 and is used to inject filling glue into the gap to be filled through the glue injection hole 302 to achieve the filling of the gap with glue.

[0034] The support component 400 seals the side of the gap to be filled away from the inner wall of the housing 100, and the sealing component 300 seals the end of the tile 200 near the opening of the housing 100. This allows multiple gaps to be filled to form a sealed glue injection area, which facilitates continuous glue injection by the glue injection component 500 through the glue injection hole 302. It also ensures that the glue is evenly distributed in the gap to be filled, greatly improving the glue filling efficiency. The operation is simple and safe.

[0035] Reference Appendix Figure 1 In some embodiments, the vent 301 and the glue injection hole 302 are disposed opposite each other at the upper and lower ends of the closure 300 along the direction of gravity.

[0036] Specifically, by arranging the vent 301 and the glue injection hole 302 at the upper and lower ends of the closure 300, with the glue injection hole 302 at the bottom and the vent 301 at the top, a natural flow path is formed in accordance with the direction of gravity.

[0037] During the glue injection process, the glue is injected from the lower glue injection hole 302 and gradually fills upward to the vent hole 301 located at the upper part, thereby pushing the original air in the gap to be filled out from the vent hole 301, effectively avoiding gas retention or entrainment in the form of air bubbles, and ensuring that the glue fills completely and densely.

[0038] Gravity-assisted venting allows the colloid to propel itself upwards through the gaps to be filled, which helps to observe and control the injection progress and avoid problems such as missed injections, cavities, or air bubbles.

[0039] It should be noted that once the vent 301 overflows with adhesive, it indicates that the gap to be filled has been completely filled, which serves as a clear indication that the adhesive filling is complete. During the adhesive filling process, the adhesive often generates heat and harmful gases evaporate. Workers operating at close range for extended periods pose health hazards and safety risks. By adapting the exhaust direction of the vent 301 or connecting a gas purification device, the escape of harmful gases can be prevented, ensuring the safety of workers.

[0040] In other embodiments, for working conditions where space is limited or the direction of gravity is different, the vent 301 and the glue injection hole 302 are set diagonally opposite each other and work together with the directional drainage device to achieve the same function.

[0041] Reference Appendix Figure 1 and Figure 2In some embodiments, the support assembly 400 includes an airbag 402 and an air pump. The airbag 402 is disposed in the inner cavity of the housing 100 and located on the side of the tile 200 away from the inner wall of the housing 100. The air pump is disposed at the end of the airbag 402 away from the housing 100 and is used to inflate or de-inflate the airbag 402.

[0042] Specifically, the airbag 402 increases or decreases its volume by inflating and deflating, thereby sealing the gap to be filled away from the inner wall of the housing 100, or facilitating its removal from the inner cavity of the housing 100.

[0043] The material used to make the airbag 402 is a non-adhesive elastic material, including polyurethane, silicone rubber, and vinyl elastomer. The material used to make the airbag 402 needs to be selected according to the material and properties of the adhesive.

[0044] Air pumps include, but are not limited to, miniature electric pumps, manual air pumps, and electronically controlled pumps with intelligent control functions.

[0045] As a device for controlling the size of the airbag 402, the air pump can inflate the airbag 402 when the volume of the airbag 402 needs to be increased, thereby expanding the airbag 402 and applying a supporting force to the tile 200 and the sealing member 300 to press the inner wall of the housing 100 and seal the side of the gap to be filled away from the inner wall of the housing 100; when the device needs to be removed, the air pump is used to de-air the airbag 402 to shrink back to its original volume, thereby releasing the supporting force and facilitating the removal of the support assembly 400.

[0046] By combining the airbag 402 with the air pump, a rapid and continuously controllable support and sealing effect is achieved through pneumatic means. Furthermore, the airbag 402 can also achieve flexible adaptation to accommodate the subtle differences in the internal structure of the shell 100, thereby improving the reliability of the sealing.

[0047] Optionally, the shape of the inflated airbag 402 is set according to the cross-section of the inner cavity of the shell 100. The shape of the inflated airbag 402 includes rectangular, cylindrical and other irregular structures to improve the sealing and support effect.

[0048] Optionally, a valve is provided between the air pump and the airbag 402 to control the gas flow rate and the start and stop of the airflow.

[0049] Reference Appendix Figure 1 In some embodiments, after the air pump inflates the airbag 402 to increase its volume, the outer wall of the airbag 402, the inner wall of the shell 100, and the closure 300 near the end of the tile 200 form a closed glue injection space. The glue injection space includes multiple interconnected gaps to be filled, and the glue injection space connects the exhaust hole 301 and the glue injection hole 302.

[0050] Specifically, as the air pump inflates the airbag 402, the outer wall of the airbag 402 presses the tile 200 and the sealing member 300 against the inner wall of the housing 100. By forming a tight contact with the tile 200 and the sealing member 300 at the end away from the inner wall of the housing 100, the interconnected gaps to be filled form a closed injection space.

[0051] The glue injection space includes the gaps to be filled between each tile 200 and the gaps to be filled between the tile 200 and the inner wall of the shell 100. The enlarged airbag 402 ensures that all gaps to be filled are connected and in a closed state. The glue injection space is connected to the outside atmosphere only through the glue injection hole 302 or the exhaust hole 301.

[0052] When the glue injection assembly 500 continuously injects glue into the glue injection space through the glue injection hole 302, the gas in the glue injection space escapes only through the vent hole 301, which can ensure that the glue fully fills every gap to be filled.

[0053] The enclosed injection space effectively prevents glue leakage or gas residue, ensuring that the glue, after curing, forms a cured glue that is flush with the end face of the tile 200 away from the housing 100. It also assists the injection assembly 500 in controlling the injection and venting process, achieving precise filling and improving the accuracy and efficiency of the injection operation.

[0054] Reference Appendix Figure 1 In some embodiments, a positioning hole 101 is provided on the inner wall of the inner cavity of the housing 100 relative to the opening of the housing 100. The support assembly 400 also includes a support rod 401. One end of the support rod 401 passes through the airbag 402 and extends into the positioning hole 101, and the other end is connected to an air pump. The support rod 401 is hollow inside and has at least two vent holes 4011. The air pump inflates or deflates the airbag 402 through the two vent holes 4011.

[0055] Specifically, a positioning hole 101 is provided at the end of the housing 100 away from the opening, which serves as a stable anchor point for the support assembly 400.

[0056] The support rod 401 is made of pressure-resistant metal or engineering plastic to enhance its strength. One end of the support rod 401 is inserted into the positioning hole 101, and the other end is connected to the air pump. The support rod 401 has a hollow structure and is provided with at least two vent holes 4011, so that the air pump can transmit gas to the airbag 402 through the support rod 401.

[0057] The support rod 401 is used to simplify the gas passage layout and improve the structural stability of the support assembly 400, effectively preventing the airbag 402 from failing to seal due to uneven pressure or positional displacement.

[0058] Compared to connecting the air pump directly to the airbag 402, the hollow support rod 401 enables integrated air circuitry and provides precise positioning with the positioning hole 101, thereby improving the ease of assembly and structural reliability of the support component 400.

[0059] It should be noted that there are at least two vent holes 4011. One vent hole 4011 is used for the air pump to inflate or depress the support rod 401, and the other vent hole 4011 is used to connect the support rod 401 to the airbag 402. The number of vent holes 4011 used to connect the support rod 401 to the airbag 402 should be increased according to the actual situation to increase the inflation or depressurization efficiency.

[0060] Reference Appendix Figure 1 In some embodiments, a limiting structure is provided on the support rod 401 to cooperate with the positioning hole 101 to limit the airbag 402, so as to prevent the airbag 402 from moving axially or radially along the support rod 401; the limiting structure further includes a limiting step 600, which is fixed on the support rod 401 and located between the air pump and the airbag 402.

[0061] Specifically, when the airbag 402 is inflated, if there is no effective limiting mechanism, the airbag 402 may shift, leading to sealing failure or uneven glue injection. The limiting structure can effectively ensure that the airbag 402 presses against the sealing member 300 in the axial direction and fits the shell structure in the radial direction, forming a stable glue injection space boundary.

[0062] The limiting structure includes an annular boss, an elastic retaining ring, and a stepped structure. One end of the limiting structure can be used in conjunction with the corresponding groove or flange in the positioning hole 101 to achieve more reliable mechanical limiting. The material used to make the limiting structure should have good pressure resistance and wear resistance, including nylon, polyamide, and metal.

[0063] After the airbag 402 is inflated by the air pump, the limiting structure can effectively suppress its unexpected displacement, ensuring that it remains in the working position, and achieving stable support for the tile 200 and the closure 300, as well as sealing the gap to be filled.

[0064] Reference Appendix Figure 1 The limiting structure further includes a limiting step 600 set in the axial direction of the support rod 401. The limiting step 600 is located between the air pump and the airbag 402. The outer diameter of the part of the support rod 401 that extends into the airbag 402 is smaller than the outer diameter of the part with the limiting step 600. A certain height difference is formed between the two parts to prevent the airbag 402 from moving out of the housing 100 along the support rod 401.

[0065] The limiting step 600 is a stepped structure that is integrally machined with the support rod 401 or set on the surface of the support rod 401 by means of thread fixing or snap-fit.

[0066] When the support rod 401 is inserted into the positioning hole 101 in the inner cavity of the housing 100, the limiting step 600 adheres to the side wall of the airbag 402 and applies resistance against the housing 100, thereby preventing the airbag 402 from moving out of the housing 100 along the support rod 401 during inflation or external disturbance, ensuring that the airbag 402 is always in the supported position, maintaining effective support for the tile 200 and the sealing member 300, as well as the sealing function for the gaps to be filled.

[0067] The limiting step 600 improves the mechanical stability of the support component 400, simplifies the control logic of the airbag 402 position, and reduces the dependence of the airbag 402 structure on friction bonding or adhesive positioning; in addition, as a rigid stop component, the limiting step 600 has good repeatability and can disassemble and assemble multiple shells 100 multiple times without easily failing.

[0068] In some embodiments, a seal is disposed between the closure member 300 and the airbag 402. The seal is used to cooperate with the closure member 300 after the airbag 402 is inflated to seal the end of the gap to be filled facing the opening of the housing 100.

[0069] Specifically, the seals include, but are not limited to, elastic rubber, foamed silicone, and polyurethane sealing strips. The cross-sectional shape of the seals should be designed based on the internal cavity cross-section of the housing 100 to enhance the adhesion.

[0070] By providing a seal between the closure 300 and the airbag 402, the seal is pressed into the sealing groove of the closure 300 after the airbag 402 is inflated, thereby forming an effective seal at the open end of the housing 100.

[0071] The seal is used to ensure that the open end of the gap to be filled is completely closed, and it is connected to the outside only through the glue injection hole 302 and the vent hole 301, thereby forming a closed glue injection channel during the glue injection process, preventing glue leakage and improving filling uniformity.

[0072] The seal further enhances the sealing performance of the closure 300 for the end of the gap to be filled facing the opening of the housing 100. It can adapt to occasions where the sealing requirements of the opening end of the housing 100 are high or the shape is irregular. Furthermore, through the flexible fit between the closure 300 and the airbag 402, the seal can automatically adapt the contact shape according to the different tile arrangements 200 and the configuration of the gap to be filled, ensuring the integrity of the seal and reducing the dependence on the machining accuracy of the housing 100.

[0073] Reference Appendix Figure 1 In some embodiments, the dispensing assembly 500 includes a dispensing machine 501 and a connecting pipe 502. The dispensing machine 501 is located on one side of the dispensing hole 302. One end of the connecting pipe 502 is connected to the dispensing machine 501, and the other end is connected to the dispensing hole 302.

[0074] Specifically, the dispensing machine 501 includes electric, pneumatic, and manual types. The dispensing machine 501 has pressure regulation, flow monitoring, and back suction functions to adapt to different adhesive properties.

[0075] The glue dispensing machine 501 serves as the power source for glue dispensing. The connecting pipe 502 establishes a fluid channel between the glue dispensing machine 501 and the glue dispensing hole 302, enabling the glue to be continuously and controllably injected into the gap to be filled. This improves the efficiency and accuracy of the glue dispensing process and avoids the problem of insufficient or excessive glue volume during manual operation.

[0076] The connecting pipe 502 is made of pressure-resistant hose or metal braided tubing, and is equipped with a quick-connect fitting and a check valve to improve connection reliability and ease of operation.

[0077] The connecting pipe 502 allows for more flexible placement of the dispensing machine 501, adapting to different workstations and housing structures, thus enhancing its adaptability.

[0078] The glue dispensing machine 501, together with the connecting pipe 502, can provide constant pressure to the glue dispensing hole 302, ensuring that the glue can smoothly enter the closed glue dispensing space, fill the gaps between the tiles 200 and between the tiles and the inner wall of the housing 100, and push the internal gas out through the exhaust hole 301 to achieve uniform and continuous glue dispensing. Specific Implementation Example 2 This application also provides a method of using an internal support and gap-filling device, used to fill the gaps in the inner cavity of the shell 100 with adhesive by means of any of the internal support and gap-filling devices in Specific Embodiment 1. The method of using the internal support and gap-filling device includes: In the sealing step S1, after the sealing member 300 is installed on the end of the tile 200 near the opening of the housing 100, the volume of the support component 400 in the inner cavity of the housing 100 is increased to press the tile 200 and the sealing member 300 against the inner wall of the housing 100. At the same time, the support component 400 seals the side of the gap to be filled away from the inner wall of the housing 100, so that the gap to be filled is connected to the atmosphere only through the glue injection hole 302 and the vent hole 301.

[0080] In the glue injection step S2, the glue injection component 500 continuously injects glue into the gap to be filled through the glue injection hole 302 until glue overflows at the vent hole 301, at which point the glue injection stops and the overflow at the vent hole 301 is cleaned up.

[0081] After removing step S3 and allowing the adhesive in the gap to cool and solidify, the volume of the support component 400 in the inner cavity of the housing 100 is reduced, and then the support component 400 and the sealing component 300 are removed through the opening of the housing 100, thus completing the adhesive filling of the gap in the inner cavity of the housing 100.

[0082] Specifically, in sealing step S1, after installing the sealing member 300 on the end of the tile 200 near the opening of the housing 100, the support rod 401 is inserted into the positioning hole 101, so that the airbag 402 is located on the side of the tile 200 away from the inner wall of the housing 100 and is concentric with the housing 100. The airbag 402 is inflated by an air pump to expand its volume. The outer wall of the airbag 402 presses the tile 200 and the sealing member 300 against the inner wall of the housing 100, and forms a tight contact with the tile 200 and the end of the sealing member 300 away from the inner wall of the housing 100, so that the interconnected gaps to be filled form a closed glue injection space. The glue injection hole 302 and the vent hole 301 are aligned with the gaps to be filled, and the glue injection space is connected to the outside atmosphere only through the glue injection hole 302 and the vent hole 301.

[0083] In the glue injection step S2, the glue dispensing machine 501 continuously injects glue into the glue injection space through the glue injection hole 302. The glue gradually fills from the glue injection hole 302 at the bottom of the glue injection space to the vent hole 301 at the top of the glue injection space until the glue overflows from the vent hole 301. The glue dispensing machine 501 then stops injecting glue and cleans up the glue overflowing from the vent hole 301.

[0084] After removing step S3, once the adhesive in the injection space has cooled and solidified, air is pumped into the airbag 402 to reduce its volume. The outer wall of the airbag 402 no longer presses against the sealing member 300, making it easy to remove the sealing member 300, support rod 401, and airbag 402 through the opening of the housing 100, thereby completing the adhesive filling of the gaps in the inner cavity of the housing 100.

[0085] In the sealing step S1, the support component 400 is inflated to form an effective support, which, together with the sealing component 300, forms a sealed injection space, leaving only the injection hole 302 and the vent hole 301 connected to the outside, creating a sealed environment for subsequent injection.

[0086] In the dispensing step S2, continuous and stable dispensing is achieved by using the dispensing assembly 500 to deliver the adhesive. Gas is discharged from the vent 301 until overflow occurs.

[0087] In the dismantling step S3, after the colloid has cured, the support component 400 is reduced in volume to release its support for the closed structure, making the device easy to dismantle without disturbing the filled area.

[0088] After removing step S3, install the inner support and caulking device in the inner cavity of the other shell 100, and repeat the above steps to fill the gaps in the inner cavity of the other shell 100 with adhesive.

[0089] This application provides an internal support caulking device and its usage method. The support component 400 seals the side of the gap to be filled away from the inner wall of the housing 100, and the sealing component 300 seals the end of the tile 200 near the opening of the housing 100. This allows multiple gaps to be filled to form a sealed injection area, facilitating continuous injection of adhesive by the injection component 500 through the injection hole 302. It also ensures uniform adhesive distribution within the gap, greatly improving filling efficiency. The operation is simple and safe. The device utilizes a pneumatic method, with the airbag 402 and air pump working together to achieve the desired filling efficiency. The system provides rapid and continuous controllable support and sealing, and the airbag 402 can flexibly adapt to subtle differences in the internal structure of the shell 100, improving sealing reliability. The sealed injection space effectively prevents adhesive leakage or gas residue, ensuring that the cured adhesive forms a flat surface with the tile 200 away from the shell 100. It also assists the injection assembly 500 in controlling the injection and venting processes, achieving precise filling and improving the accuracy and efficiency of the injection operation. The support rod 401 simplifies the gas passage layout and enhances support. The structural stability of the support component 400 effectively prevents the airbag 402 from failing to seal due to uneven pressure or positional displacement. By setting a limiting structure, the airbag 402 can effectively suppress unexpected displacement after being inflated by the air pump, ensuring it remains in its active position and providing stable support for the tile 200 and the sealing component 300, as well as sealing the gap to be filled. The sealing component further enhances the sealing performance of the sealing component 300 at the end of the gap to be filled facing the opening of the housing 100, making it suitable for applications with high sealing requirements or shapes at the opening of the housing 100. In irregular situations, based on the flexible fit between the sealing element 300 and the airbag 402, the sealing element can automatically adapt to the contact shape according to the different tile 200 arrangements and the configuration of the gap to be filled, ensuring the integrity of the seal and reducing the dependence on the machining accuracy of the housing 100; by arranging the vent hole 301 and the glue injection hole 302 at the upper and lower ends of the sealing element 300, with the glue injection hole 302 at the bottom and the vent hole 301 at the top, a natural flow path is formed in accordance with the direction of gravity, which helps to observe and control the glue injection progress and avoid problems such as leakage, cavities or air bubbles.

[0090] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0091] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. An internal support and gap-filling device for filling gaps in the inner cavity of a shell, wherein one end of the shell is open and the inner cavity is hollow, and a plurality of tiles are provided on the inner wall of the shell, wherein there are a plurality of interconnected gaps to be filled between each of the tiles and between the tiles and the inner wall of the shell, characterized in that, The internal support and joint filling device includes: A sealing member is provided in the inner cavity of the housing and located at the end of the tile near the opening of the housing. The sealing member is provided with an exhaust hole and an injection hole, and the exhaust hole and the injection hole are respectively connected to the gap to be filled. A support assembly is disposed within the inner cavity of the housing and located on the side of the tile away from the inner wall of the housing. The support assembly is used to increase its own volume to press against the tile and the closure member, and to close the gap to be filled on the side away from the inner wall of the housing; or, the support assembly is used to decrease its own volume to move away from the tile and the closure member. The glue injection assembly is connected to the glue injection hole, and the glue injection assembly is used to inject glue into the gap to be filled through the glue injection hole.

2. The internal support and joint filling device according to claim 1, characterized in that, The support components include: An airbag is disposed in the inner cavity of the housing and located on the side of the tile away from the inner wall of the housing; An air pump is located at the end of the airbag away from the housing, and the air pump is used to inflate or de-inflate the airbag.

3. The internal support and joint filling device according to claim 1, characterized in that, After the air pump inflates the airbag to increase its volume, the outer wall of the airbag, the inner wall of the shell, and the closure member near the end of the tile form a closed glue injection space. The glue injection space includes a plurality of interconnected gaps to be filled, and the glue injection space connects the vent hole and the glue injection hole.

4. The internal support and joint filling device according to claim 2, characterized in that, The inner wall of the housing cavity relative to the housing opening is provided with a positioning hole, and the support assembly further includes: A support rod has one end passing through the airbag and extending into the positioning hole, and the other end connected to the air pump. The support rod is hollow inside and has at least two ventilation holes. The air pump inflates or deflates the airbag through the two ventilation holes.

5. The internal support and joint filling device according to claim 4, characterized in that, Also includes: A limiting structure is provided on the support rod to cooperate with the positioning hole to limit the airbag, so as to prevent the airbag from moving along the axial or radial direction of the support rod.

6. The internal support and joint filling device according to claim 5, characterized in that, The limiting structure further includes: A limiting step is fixed on the support rod and located between the air pump and the airbag. The limiting step is used to press against the airbag when the support rod extends into the positioning hole along its axial direction, so as to prevent the airbag from moving away from the housing along the axial direction of the support rod.

7. The internal support and joint filling device according to claim 2, characterized in that, Also includes: A sealing element is disposed between the closure element and the airbag. The sealing element is used to cooperate with the closure element after the airbag is inflated to seal the end of the gap to be filled facing the opening of the shell.

8. The internal support and joint filling device according to claim 1, characterized in that, The dispensing assembly includes: A glue dispensing machine is located on one side of the glue dispensing hole; The connecting tube is connected at one end to the dispensing machine and at the other end to the dispensing hole.

9. The internal support caulking device according to any one of claims 1 to 8, characterized in that, The vent hole and the glue injection hole are located opposite each other along the direction of gravity at the upper and lower ends of the sealing member.

10. A method of using an internal support caulking device, characterized in that, include: In the sealing step, after the sealing member is installed on the tile near the opening of the shell, the volume of the support component in the inner cavity of the shell is increased to press the tile and the sealing member against the inner wall of the shell. At the same time, the support component seals the side of the gap to be filled away from the inner wall of the shell, so that the gap to be filled is connected to the atmosphere only through the glue injection hole and the vent hole. In the glue injection step, the glue injection component continuously injects glue into the gap to be filled through the glue injection hole until glue overflows at the vent hole, at which point the glue injection stops and the overflowing glue at the vent hole is cleaned up. In the removal step, after the adhesive in the gap to be filled cools and solidifies, the volume of the support component in the inner cavity of the housing is reduced, and then the support component and the closure are removed through the opening of the housing, thus completing the adhesive filling of the gap in the inner cavity of the housing.

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