A dynamic sealing structure of a cold storage wall joint and a construction method thereof

Abstract

The application relates to the technical field of cold storage engineering construction and heat preservation sealing, and particularly discloses a cold storage wall joint dynamic sealing structure and a construction method, which comprises two adjacent cold storage plates, the two cold storage plates are provided with accommodating grooves at one end close to each other, and the two cold storage plates are provided with connecting assemblies at the accommodating grooves; the connecting assembly comprises an abutting block and an elastic piece, the first end of the abutting block is slidably connected to the accommodating groove, and the second end of the abutting block extends to the outside of the accommodating groove; the elastic piece is in abutment with the first end of the abutting block and the inner wall of the accommodating groove respectively; and at least one cover plate is connected with the two cold storage plates respectively. Through cooperation of the abutting block and the elastic piece, a sealing system capable of adapting to dynamic expansion and contraction deformation of the cold storage wall is formed, continuous and effective sealing of the joint during periodic operation of the cold storage is ensured, and the problem of easy failure of traditional static sealing is solved.

Description

Technical Field

[0001] This application relates to the field of cold storage engineering construction and insulation sealing technology, and in particular to a dynamic sealing structure and construction method for cold storage wall joints. Background Technology

[0002] With the rapid development of the cold chain logistics industry, the scale of cold storage construction is constantly expanding, and the requirements for the thermal insulation and energy-saving performance of cold storage are also increasing. As the core component of thermal insulation, the anti-cold bridging and sealing performance of cold storage walls directly affect the internal temperature stability, energy consumption level, and operating costs of cold storage.

[0003] Currently, the prevention of cold bridges at the joints of existing cold storage walls largely relies on the thermal insulation performance of the panels themselves or the addition of local thermal insulation pads. Sealing methods commonly employ polyurethane foam, sealant, or adhesive tape. While these structures provide some initial sealing, during actual operation, factors such as periodic temperature fluctuations, equipment vibration, and structural stress release cause continuous, minute expansion and contraction and displacement at the wall joints. Existing sealing materials and structures are ill-suited to this dynamic deformation, easily leading to aging, cracking, and even detachment due to material fatigue and stress concentration. This results in seal failure, cold bridge formation, and consequently, continuous cold loss and increased energy consumption. Summary of the Invention

[0004] In order to reduce the impact of dynamic deformation of cold storage walls on the sealing effect at joints, this application provides a dynamic sealing structure and construction method for cold storage wall joints.

[0005] Firstly, this application provides a dynamic sealing structure for cold storage wall joints, employing the following technical solution: A dynamic sealing structure for cold storage wall joints includes two adjacent cold storage panels. Each panel has a receiving groove at one end close to the other, and a connecting component is provided on each panel at the receiving groove. The connecting component includes an abutment block and an elastic element. The first end of the abutment block is slidably connected to the receiving groove, and the second end of the abutment block extends to the outside of the receiving groove. The elastic element abuts against the first end of the abutment block and the inner wall of the receiving groove, respectively, to keep the second ends of the abutment blocks in an abutment state when the two cold storage panels tend to move away from each other due to cold contraction. At least one cover plate is connected to each of the two cold storage panels, and the cover plate in the connected state can be moved when the cold storage panels contract due to cold, resulting in relative sliding between the cover plate and the cold storage panels.

[0006] By adopting the above technical solution, when two adjacent cold storage panels shift relative to each other due to thermal expansion and contraction or structural stress, the two abutment blocks installed within the joint can maintain mutual contact under the continuous action of the elastic element, thereby continuously sealing the gap between the two cold storage panels and achieving dynamic sealing. Simultaneously, the outer cover plate, through its slidable connection with the cold storage panel, can adapt to the expansion and contraction of the cold storage panel, avoiding excessive stress on the cover plate due to rigid connection, thus ensuring the durability of the overall structure and the reliability of long-term sealing.

[0007] Optionally, the receiving groove is provided with an elastic filling block that abuts against the first end of the abutting block. The elastic filling block is made of heat-insulating material, and the elastic filling block deforms in accordance with the sliding compression of the abutting block to fill the sealing gap in the receiving groove.

[0008] By adopting the above technical solution, the elastic filler block can not only drive the two abutting blocks to press against each other, but also effectively block the heat conduction path that may be formed due to the sliding of the abutting block due to its strong thermal insulation performance. In conjunction with the deformation generated by the sliding of the abutting block, it dynamically fills the gap between the abutting block and the inner wall of the receiving groove, further enhancing the anti-cold bridge and sealing effect.

[0009] Optionally, the second end of the abutment block is provided with a first inclined surface; a connecting block is provided between the abutment block and the cover plate, and the connecting block is provided with a second inclined surface that cooperates with and abuts the first inclined surface; an elastic block is also provided between the connecting block and the abutment block, and the elastic block is used to apply an elastic pressing force to the abutment block.

[0010] By employing the above technical solution, the connecting block and the elastic block fill the gap between the cover plate and the abutment block, effectively sealing this gap and enhancing the sealing effect. The elastic block also provides flexible pressure transmission and buffering, ensuring uniform pressure application and allowing the two abutment blocks to remain tightly fitted even during dynamic displacement. Under the combined action of the first and second inclined surfaces, the pressure transmitted by the cover plate is converted into a pressing force on the abutment blocks towards the center of the joint, further reducing the possibility of separation between the two abutment blocks during cold storage panel shrinkage, thus maintaining a stable dynamic sealing effect.

[0011] Optionally, both of the abutting blocks have corrugated or toothed surfaces at their close ends, and the corrugated or toothed surfaces on the two abutting blocks are adapted to mesh with each other.

[0012] By adopting the above technical solution, the interlocking of corrugated or toothed surfaces increases the contact area and interlocking depth between the two abutting blocks, forming a more complex sealing channel. Even in high humidity environments or when there is slight displacement, it can effectively block airflow leakage and improve the airtightness and sealing performance of the joint.

[0013] Optionally, a non-curing adhesive layer is provided between the abutting surfaces of the two abutting blocks, the non-curing adhesive layer being used to maintain a flexible, sealed fit when the two abutting blocks slide relative to each other.

[0014] By adopting the above technical solution, the non-curing bonding layer, as a medium that is always viscous and flexible, can effectively fill the microscopic unevenness of the contact surface of the two abutting blocks, and maintain complete coverage and adhesion of the contact surface when the two abutting blocks slide relative to each other, thus compensating for the microscopic gaps that may be caused by processing or deformation and achieving a better dynamic sealing effect.

[0015] Optionally, the elastic element is a spring, a guide post is provided on the inner wall of the receiving groove, a guide hole is provided at the first end of the abutment block, the guide post is slidably engaged with the guide hole, the spring is sleeved on the outside of the guide post, and the spring abuts against the inner wall of the receiving groove and the abutment block respectively.

[0016] By adopting the above technical solution, the sliding fit between the guide post and the guide hole restricts the sliding path of the abutment block, preventing the abutment block from deflecting or jamming during sliding, and ensuring the linear reciprocating motion of the abutment block under the action of the spring, thereby ensuring the accuracy and reliability of the alignment and abutment of the two abutment blocks. In addition, the spring is sleeved on the outside of the guide post, so the guide post can support the spring to prevent instability when the spring is compressed.

[0017] Optionally, both ends of the cover plate are provided with strip-shaped holes extending along the length of the cold storage plate, and each strip-shaped hole is provided with a locking bolt, the end of the locking bolt protruding from the cover plate being threaded to the corresponding cold storage plate.

[0018] By adopting the above technical solution, the slotted hole provides the locking bolt with a space to move along the length of the cold storage panel. When the cold storage panel expands or contracts, the locking bolt fixed to the cold storage panel can slide relative to the slotted hole, ensuring the connection effect while avoiding damage caused by the constraints of a rigid connection.

[0019] Optionally, the cover plate has a flexible pad on the side near the cold storage panel for abutting against the cold storage panel.

[0020] By adopting the above technical solution, the flexible pad, as the intermediate layer between the cover plate and the outer surface of the cold storage panel, not only improves the fit of the cover plate, but also absorbs the local stress caused by unevenness or slight vibration of the cold storage panel surface, avoiding wear or abnormal noise caused by hard contact, and at the same time helps to enhance the secondary sealing effect on the outside.

[0021] Optionally, the abutment block is provided with a slider, and the inner wall of the receiving groove is provided with a sliding groove, and the slider is slidably connected in the sliding groove.

[0022] By adopting the above technical solution, the cooperation between the slider and the groove forms a set of sliding guide structures, which further enhances the stability and anti-torsion ability of the abutment block sliding in the receiving groove, and ensures the reliability of sliding during long-term use.

[0023] Secondly, this application provides a construction method that applies the dynamic sealing structure for cold storage wall joints described in any of the above claims, comprising the following steps: Step S1, preparing the cold storage panel with the elastic element and the abutment block; Step S2, bringing two adjacent cold storage panels closer together and splicing them until the abutment blocks at the ends of the two cold storage panels abut against each other, and causing the abutment blocks to partially slide into the corresponding receiving groove; Step S3, placing at least one cover plate abutting the outside of the joint after the two cold storage panels are joined together, so that the two ends of the same cover plate span across the two cold storage panels respectively, and connecting the cover plate to the cold storage panel.

[0024] By adopting the above technical solution, cold storage panels with dynamic sealing components are first prepared, and then spliced ​​and installed on site. This enables the efficient and reliable construction of cold storage wall joints with adaptive dynamic deformation capabilities and durable sealing, ensuring the consistency between the final construction quality and the design function.

[0025] In summary, this application includes the following beneficial technical effects: 1. By combining the abutment block and the elastic element, a sealing system that can adapt to the dynamic expansion and contraction deformation of the cold storage wall is formed, ensuring continuous and effective sealing at the joints during the periodic operation of the cold storage, and solving the problem of easy failure of traditional static seals.

[0026] 2. An elastic filling block made of heat-insulating material is added to the receiving groove. While ensuring the smooth sliding of the abutment block, it dynamically fills the internal gaps in the receiving groove, effectively blocking thermal bridges and improving the overall heat preservation and energy-saving effect.

[0027] 3. The connection block and the elastic block not only seal the gap between the cover plate and the abutment block, but also, under the cooperation of the first and second inclined surfaces, can convert part of the pressure of the cover plate into a thrust on the abutment block, further pressing the two abutment blocks together to ensure its dynamic sealing effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the dynamic sealing structure for the cold storage wall joints according to an embodiment of this application; Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0029] Reference numerals: 1. Cold storage panel; 11. Receiving groove; 111. Slide groove; 2. Connecting assembly; 21. Abutment block; 211. Protrusion; 2111. First inclined surface; 212. Guide hole; 213. Slider; 22. Elastic element; 3. Cover plate; 31. Strip hole; 32. Flexible pad; 4. Elastic filling block; 41. Clearance hole; 5. Connecting block; 51. Second inclined surface; 6. Elastic block; 7. Non-cured bonding layer; 8. Guide post; 9. Locking bolt. Detailed Implementation

[0030] The following combination Figures 1-2 This application will be described in further detail.

[0031] This application discloses a dynamic sealing structure for cold storage wall joints. (Refer to...) Figure 1 The dynamic sealing structure of the cold storage wall joint includes two adjacent cold storage panels 1. Each of the two cold storage panels 1 has a receiving groove 11 at one end close to each other, and each receiving groove 11 is provided with a set of connecting components 2.

[0032] The connecting component 2 includes an abutment block 21 and an elastic element 22. The cross-section of the abutment block 21 is adapted to the cross-section of the receiving groove 11. The end of the abutment block 21 near the cold storage panel 1 is the first end. A slider 213 is fixedly connected to the side wall of the first end of the abutment block 21. Correspondingly, a groove 111 extending along the length direction of the cold storage panel 1 is formed on the inner wall of the receiving groove 11. The slider 213 is slidably connected in the groove 111, so that the abutment block 21 can slide smoothly along the extension direction of the groove 111. The end of the abutment block 21 away from the cold storage panel 1 is the second end. The second end of the abutment block 21 extends to the outside of the receiving groove 11 and is located in the joint area between the two cold storage panels 1.

[0033] The elastic element 22 is a spring, located in the receiving groove 11. The first end of the elastic element 22 is fixedly connected to the first end of the abutment block 21, and the second end of the elastic element 22 is fixedly connected to the bottom wall of the receiving groove 11. Simultaneously, a guide post 8 extending along the length of the cold storage panel 1 is fixed to the bottom of the receiving groove 11. The first end of the abutment block 21 has a guide hole 212 matching the diameter of the guide post 8. The end of the guide post 8 slides through the guide hole 212, and the elastic element 22 is sleeved on the guide post 8. Because the two ends of the elastic element 22 abut against the abutment block 21 and the bottom of the receiving groove 11 respectively, and the elastic element 22 is in a compressed state, the abutment block 21 is always subjected to the thrust of the elastic element 22, causing the abutment block 21 to tend to slide towards the center of the joint.

[0034] After the two cold storage panels 1 are installed, the abutting blocks 21 in the two receiving slots 11 press against each other at their close ends; when the two cold storage panels 1 shrink relative to each other due to the temperature drop and try to open the seam, the two abutting blocks 21 always keep their end faces tightly abutting under the push of their respective elastic members 22, thereby avoiding gaps at the seam.

[0035] To enhance the sealing effect between the two abutment blocks 21, continuous toothed contours are machined on the ends of the two abutment blocks 21 that are close to each other, forming toothed surfaces. When the two abutment blocks 21 are pressed together, the toothed surfaces of the two abutment blocks 21 interlock, forming a tortuous sealing path, thereby significantly increasing the resistance to gas permeation. In addition, before the two abutment blocks 21 are pressed together, a non-curing adhesive layer 7 can be uniformly coated on one of the toothed surfaces. After the two abutment blocks 21 are engaged, the non-curing adhesive layer 7 can fill the microscopic gaps between the teeth and maintain good adhesion and sealing performance when the abutment blocks 21 slip slightly. In other embodiments, the ends of the two abutment blocks 21 that are close to each other can also be made into corrugated surfaces, thereby extending the gas permeation path to ensure a sealing and heat insulation effect.

[0036] The abutment block 21 is a rigid thermal insulation component that combines structural strength with low thermal conductivity. The abutment block 21 can be made of high-density rigid polyurethane molding material, glass fiber reinforced plastic, or polytetrafluoroethylene, etc., which are pressure-resistant and heat-insulating materials. The above materials effectively avoid the cold bridge penetration effect caused by high thermal conductivity components, which not only meets its own insulation function, but also ensures that the abutment block 21 will not deform and jam due to insufficient strength when it slides under force in the receiving groove 11, and further ensures the meshing strength when the toothed surfaces are squeezed together.

[0037] In this embodiment, the non-curing adhesive layer 7 is made of butyl rubber putty. Butyl rubber itself can maintain a long-term non-curing paste state and high elasticity and adhesion even in extremely low temperature environments, without hardening or becoming brittle, thus ensuring continuous and efficient adhesion and self-healing waterproof and gas-barrier effects. In other embodiments, the non-curing adhesive layer 7 can also be made of non-curing silicone gel material, which can maintain an ointment-like feel at -50℃ and has strong resistance to weathering. The above-mentioned non-curing materials are always in a viscous semi-fluid or soft putty state, which can play a buffering and lubricating role in the gap between the two abutment blocks 21, ensuring that they are not easily detached or torn during operation, thereby achieving better dynamic sealing.

[0038] In addition, each receiving groove 11 is provided with an elastic filling block 4. The elastic filling block 4 is made of a microporous foam insulation material with compressibility, such as closed-cell rubber and plastic insulation sponge. The elastic filling block 4 occupies the main gap between the inner wall of the receiving groove 11 and the first end of the abutment block 21. The receiving groove 11 is also reserved with a deformation clearance gap for the elastic filling block 4 to expand outward after being squeezed. Therefore, when the abutment block 21 slides back and applies pressure to the elastic filling block 4, the elastic filling block 4 can smoothly undergo adaptive deformation by its own microporous compression and its extension at the clearance gap. When the abutment block 21 slides outward, it can quickly rebound to seal the gap, thereby effectively preventing the generation of cold bridges.

[0039] To ensure the proper coexistence of the elastic filler block 4 and the elastic element 22, a clearance hole 41 extending through its thickness is provided in the center of the elastic filler block 4. The inner diameter of the clearance hole 41 is larger than the outer diameter of the elastic element 22, creating an annular clearance gap between the inner wall of the clearance hole 41 on the elastic filler block 4 and the outer periphery of the elastic element 22. This clearance gap ensures that the elastic filler block 4 does not press against the elastic element 22, effectively preventing the elastic foam material from being trapped and worn by the coil gaps of the elastic element 22 during compression or rebound, thus ensuring the smooth operation of the elastic element 22 and preventing interference between them.

[0040] Meanwhile, since one end of the clearance hole 41 is closed by the bottom of the receiving groove 11 and the other end is blocked by the end wall of the abutment block 21, the interior of the clearance hole 41 is essentially a closed cavity that does not convect with the outside, thus eliminating the path of cold air penetration; it not only does not weaken the overall heat insulation effect of the elastic filling block 4, but also occupies the main gap in the receiving groove 11, effectively preventing the accumulation of condensate at the bottom of the groove.

[0041] A rectangular cover plate 3 is installed at the joint between the two cold storage panels 1. Two cover plates 3 are provided, located on the inner and outer sides of the joint, respectively. A flexible rubber pad 32 is adhered to the side of the cover plate 3 closest to the cold storage panel 1, and the flexible pad 32 is used to abut against the outer wall of the cold storage panel 1. The two ends of the cover plate 3 are respectively connected to the side walls at the ends of the two cold storage panels 1, so the cover plate 3 can further seal the joint to ensure a sealing effect.

[0042] The end of the cover plate 3 has a slotted hole 31 extending along the length of the cold storage panel 1. During installation, a locking bolt 9 is passed through the slotted hole 31 and screwed into a threaded hole pre-drilled on the outer wall of the cold storage panel 1, thereby connecting both ends of the cover plate 3 to the two cold storage panels 1 respectively. The length of the slotted hole 31 is greater than the diameter of the shank of the locking bolt 9, providing space for the locking bolt 9 to slide along the length of the cold storage panel 1. When the cold storage panel 1 expands or contracts due to temperature changes, the locking bolt 9 connected to the cold storage panel 1 will slide relative to the slotted hole 31 on the cover plate 3, thereby allowing a slight relative slippage between the cover plate 3 and the cold storage panel 1, avoiding excessive stress at the connection point.

[0043] Reference Figure 1 and Figure 2 Furthermore, a gap is formed between the flexible pad 32 on the inner side of the cover plate 3 and the side wall of the abutment block 21. Two connecting blocks 5 are arranged symmetrically in this gap. A protrusion 211 is integrally formed on the second end of the abutment block 21. Two protrusions 211 are provided, located on opposite sides of the abutment block 21; each protrusion 211 corresponds to one of the connecting blocks 5. A first inclined surface 2111 is provided on the protrusion 2111; correspondingly, a second inclined surface 51 is provided at the end of the connecting block 5. The second inclined surface 51 has the same inclination and direction as the first inclined surface 2111, and is used to abut against the first inclined surface 2111. In addition, an elastic block 6 is fixedly bonded to the side of the connecting block 5 near the abutment block 21. The elastic block 6 is made of low-temperature resistant rubber and abuts against the side wall of the abutment block 21.

[0044] When the locking bolt 9 is tightened, the cover plate 3 presses against the cold storage panel 1. The cover plate 3 can apply pressure to the connecting block 5 and the elastic block 6, causing the elastic block 6 to be squeezed. At this time, the first inclined surface 2111 and the second inclined surface 51 are in a tight abutting state. Therefore, on the one hand, the gap between the cover plate 3 and the abutting block 21 can be sealed by the connecting block 5 and the elastic block 6 to ensure the heat insulation and sealing effect; on the other hand, the first inclined surface 2111 and the second inclined surface 51 cooperate to convert part of the pressure generated by the cover plate 3 into a force that pushes the abutting block 21 to move horizontally closer. The auxiliary spring makes the two abutting blocks 21 fit more tightly. Therefore, when the cold storage panel 1 shrinks due to cold, the two abutting blocks 21 can still be kept in a tight abutting state to ensure the sealing effect at the joint.

[0045] It should be noted that during the above process, the outer side of the elastic block 6 has a certain deformation clearance space, which allows the elastic block 6 to deform when it is squeezed. This avoids excessive vertical friction force on the abutment block 21 due to the downward pressure of the cover plate 3 and the inclined surface. This ensures that the circumferential friction resistance of the abutment block 21 when sliding along the receiving groove 11 is always less than the outward pushing force of the elastic element 22. Under the premise of avoiding mechanical jamming, this further ensures the stable effect of dynamic tight fit of the joint.

[0046] The implementation principle of the dynamic sealing structure for cold storage wall joints in this application embodiment is as follows: During the operation of the cold storage, the cold storage panels 1 will expand and contract due to temperature fluctuations. When the two cold storage panels 1 contract due to cooling, the ends of the two cold storage panels 1 will undergo slight deformation and move away from each other. At this time, the elastic element 22 in each receiving groove 11 can keep the two abutting blocks 21 in a tight abutting state, thereby always maintaining the tight abutting and meshing of the end faces of the two abutting blocks 21. The toothed surface and the non-cured layer 7 ensure airtightness under dynamic conditions. The elastic filling block 4 follows the deformation of the abutting block 21, continuously sealing the internal gaps to prevent cold bridging. At the same time, the outer cover plate 3, through the cooperation of its strip hole 31 and locking bolt 9, can slide freely when the cold storage panel 1 expands and contracts, avoiding destructive stress on itself and the internal connecting structure. The cover plate 3, through the connecting block 5 and the inclined structure, converts part of the installation clamping force into lateral clamping force on the abutting block 21, further enhancing the sealing contact. The entire system adaptively responds to the dynamic deformation of the cold storage panel 1 by combining internal elastic abutment with external sliding cover, achieving a durable and reliable dynamic seal at the joints.

[0047] This application also discloses a construction method, the specific steps of which are as follows: Step S1: Prepare a cold storage panel 1 with elastic element 22 and abutment block 21.

[0048] Step S2: Apply a non-curing adhesive layer 7 to the abutting end face of the abutting block 21, then bring the two adjacent cold storage panels 1 together and splice them, forcing the abutting blocks 21 at the ends of the two cold storage panels 1 to squeeze and mesh with each other, overcoming the elastic force of the elastic element 22 and partially sliding into the corresponding receiving groove 11.

[0049] Step S3: Place at least one cover plate 3 on the outside of the joint after the two cold storage panels 1 are joined together, so that the two ends of the same cover plate 3 are respectively connected across the two cold storage panels 1, and connect the cover plate 3 to the cold storage panel 1.

[0050] The above are optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dynamic sealing structure for cold storage wall joints, characterized in that, include: Two adjacent cold storage panels (1) are provided with receiving slots (11) at their respective ends, and connecting components (2) are provided on both cold storage panels (1) at the receiving slots (11). The connecting component (2) includes an abutment block (21) and an elastic element (22). The first end of the abutment block (21) is slidably connected to the receiving groove (11), and the second end of the abutment block (21) extends to the outside of the receiving groove (11). The elastic element (22) abuts against the first end of the abutment block (21) and the inner wall of the receiving groove (11) respectively, so as to drive the second ends of the two abutment blocks (21) to remain in the abutment state when the two cold storage panels (1) shrink when they are cooled and tend to move away from each other. At least one cover plate (3) is connected to two cold storage panels (1) respectively, and the cover plate (3) in the connected state can be driven when the cold storage panel (1) is cooled and shrinks, and relative sliding occurs between the cover plate (3) and the cold storage panel (1).

2. The dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: The receiving groove (11) is provided with an elastic filling block (4) that abuts against the first end of the abutting block (21). The elastic filling block (4) is made of heat insulation material, and the elastic filling block (4) undergoes deformation following the sliding pressure of the abutting block (21) to fill the sealing gap in the receiving groove (11).

3. The dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: The second end of the abutment block (21) is provided with a first inclined surface (2111); a connecting block (5) is provided between the abutment block (21) and the cover plate (3), and the connecting block (5) is provided with a second inclined surface (51) that cooperates with the first inclined surface (2111); an elastic block (6) is also provided between the connecting block (5) and the abutment block (21), and the elastic block (6) is used to apply an elastic pressing force to the abutment block (21).

4. The dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: Both of the abutting blocks (21) have corrugated or toothed surfaces at their close ends, and the corrugated or toothed surfaces on the two abutting blocks (21) are adapted to mesh with each other.

5. The dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: A non-curing adhesive layer (7) is provided between the abutting surfaces of the two abutting blocks (21) that abut against each other. The non-curing adhesive layer (7) is used to maintain a flexible and sealed fit when the two abutting blocks (21) slide relative to each other.

6. The dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: The elastic element (22) is a spring. The inner wall of the receiving groove (11) is provided with a guide post (8). The first end of the abutment block (21) is provided with a guide hole (212). The guide post (8) is slidably engaged with the guide hole (212). The spring is sleeved on the outside of the guide post (8), and the spring abuts against the inner wall of the receiving groove (11) and the abutment block (21) respectively.

7. The dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: Both ends of the cover plate (3) are provided with strip holes (31) extending along the length direction of the cold storage plate (1). Each strip hole (31) is provided with a locking bolt (9). One end of the locking bolt (9) protruding from the cover plate (3) is threaded to the corresponding cold storage plate (1).

8. The dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: The cover plate (3) is provided with a flexible pad (32) on the side near the cold storage plate (1) for abutting against the cold storage plate (1).

9. A dynamic sealing structure for cold storage wall joints according to claim 1, characterized in that: The abutment block (21) is provided with a slider (213), and the inner wall of the receiving groove (11) is provided with a sliding groove (111), and the slider (213) is slidably connected in the sliding groove (111).

10. A construction method for applying the dynamic sealing structure for cold storage wall joints according to any one of claims 1-9, characterized in that: The construction method includes the following steps: Step S1: Prepare the cold storage panel (1) with the elastic element (22) and the abutment block (21). Step S2: Bring two adjacent cold storage panels (1) together and splice them until the abutment blocks (21) at the ends of the two cold storage panels (1) abut against each other, and make the abutment blocks (21) partially slide into the corresponding receiving groove (11); Step S3: Place at least one cover plate (3) on the outside of the joint after the two cold storage panels (1) are joined together, so that the two ends of the same cover plate (3) are respectively connected across the two cold storage panels (1), and connect the cover plate (3) to the cold storage panel (1).

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