Lifting sliding door with heat preservation function

Abstract

The lifting sliding door with the heat preservation function comprises a mullion, heat preservation devices are arranged on the two sides of the mullion, each heat preservation device comprises a frame, glass and a spacing layer, the frames are arranged on the two sides of the mullion, the glass is arranged on the two sides of the mullion, the spacing layer is arranged between the two layers of glass, and a fast-assembling device is arranged on one side of each frame. The quick mounting device comprises a control rod, a lock sleeve, a lock bar, a lock seat, a linkage block, a linkage groove and a limiting groove, the control rod is rotationally connected to one end of the lock bar, the linkage groove penetrates through the side wall of the lock sleeve, the limiting groove is formed in the inner side of the lock seat, and a quick dismounting mechanism is arranged on the outer side of the control rod and comprises a guide groove, a sliding rail, a ball and a guide block. According to the door and window heat preservation device, the heat preservation effect of a door and window is improved, the service life of the door and window is prolonged, the installation and maintenance process is greatly simplified, and related cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting sliding door technology, and more specifically, it relates to a lifting sliding door with heat preservation function. Background Technology

[0002] In the field of modern architecture, lift-up sliding doors with thermal insulation function play an important role. They not only provide convenient access but also effectively regulate indoor temperature and reduce energy consumption. However, the widely used lift-up sliding door technology still has many shortcomings. These problems not only affect the thermal insulation effect and service life of doors and windows but also bring additional time and economic costs to installation and maintenance.

[0003] First, existing sliding doors generally suffer from simple structure and poor thermal insulation performance, mainly in the following aspects: First, there are often tiny gaps at the joint between the door frame and the glass, which become channels for the exchange of hot and cold air, seriously affecting the overall thermal insulation effect of the doors and windows; Second, traditional door and window designs have not fully considered the thermal bridging effect, causing heat to be lost rapidly in some areas; These factors combined not only reduce the overall energy efficiency of the building, but may also lead to unstable indoor temperature and affect living comfort.

[0004] Secondly, to address the issue of air leakage at the seams, some manufacturers have adopted a design scheme where the frame presses against the mullion and sealing strip. While this method improves the sealing and insulation performance of doors and windows to some extent, it also brings new challenges, mainly in the following aspects: First, the installation process is complex, requiring the use of various specialized tools, which increases the difficulty and time cost of installation; second, the installation accuracy requirements are high, and even slight deviations may affect the sealing effect; third, the complex installation process increases the possibility of errors, which may lead to problems during subsequent use; fourth, the cumbersome installation procedure also increases the difficulty of maintenance and replacement. These problems not only increase the initial installation cost of doors and windows but may also increase subsequent maintenance costs.

[0005] Furthermore, as a key component in improving the insulation system of sliding doors, the performance of the sealing strip directly affects the overall insulation effect of the doors and windows. However, sealing strips face problems such as aging, hardening, and even cracking during long-term use. The material of the sealing strip gradually loses its elasticity over time and cannot maintain a good sealing effect. Once the sealing strip is damaged, the insulation performance of the entire door and window will drop sharply. Although some new designs have enabled the quick installation of doors and windows, there are still obvious shortcomings in terms of sealing strip replacement: First, the disassembly process is complicated, often requiring the removal of the entire frame and glass; second, there is a lack of a quick solution specifically for sealing strip replacement; fourth, the cumbersome disassembly and assembly operations may damage other components, increasing additional maintenance costs. These factors combined not only increase the difficulty and cost of door and window maintenance, but may also cause users to suffer from a long-term decline in insulation performance due to the difficulty in replacing the sealing strip in a timely manner. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a lift-up sliding door with heat preservation function to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a lift-up sliding door with heat preservation function, comprising a mullion, heat preservation devices provided on both sides of the mullion, each heat preservation device comprising a frame, glass, and a spacer layer, the frame being detachably disposed on both sides of the mullion, the glass being disposed on both sides of the mullion, the spacer layer being disposed between two layers of glass, a quick-installation device provided on one side of the frame, the quick-installation device comprising a control rod, a lock sleeve, a lock bar, a lock seat, a linkage block, a linkage groove, and a limiting groove, the control rod being rotatably connected to one end of the lock bar, the lock bar being disposed in the lock sleeve. The lock sleeve is detachably installed in the lock seat. One side of the linkage block passes through the linkage groove and engages in the limiting groove. The linkage groove penetrates the side wall of the lock sleeve. The limiting groove is opened on the inner side of the lock seat. A quick-release mechanism is provided on the outer side of the control rod. The quick-release mechanism includes a guide groove, a slide rail, balls, and a guide block. The guide groove is spirally opened on the outer wall of the control rod. The guide block is fixedly installed on the inner wall of the lock sleeve and slides in the guide groove. Multiple slide rails are opened on the inner wall of the lock seat. Multiple balls are rotatably installed on the outer side of the lock sleeve and rotatably in the slide rails.

[0010] The present invention is further configured such that a clearance groove is provided on the inner side of the lock bar, and a plurality of linkage springs are movably arranged in the clearance groove, and one side of the linkage block is connected to the inner wall of the clearance groove through the linkage springs.

[0011] The present invention is further configured such that a return spring is connected to one end of the lock bar, and one end of the lock bar is connected to the inner wall of the lock sleeve through the return spring.

[0012] The present invention is further configured such that a push spring is connected to one side of the lock sleeve, a push plate is connected to the other end of the push spring, and the inner wall of the lock seat is contacted on the other side of the push plate.

[0013] The present invention is further configured such that the diameter of the reset spring is smaller than the diameter of the push spring, and the number of turns of the reset spring is less than the number of turns of the push spring.

[0014] The present invention is further provided with a locking plate fixed on one side of both the lock sleeve and the lock seat, and the locking plate ensures stable fixation.

[0015] The present invention is further configured such that pressing strips are symmetrically provided on one side of the frame and both sides of the mullion, and sealing strips are detachably provided on both sides of the glass. The above components realize the sealing treatment of the joint and ensure the heat preservation performance.

[0016] The present invention is further configured such that the spacer layer can be evacuated or filled with inert gas, thereby further improving the thermal insulation performance.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a lift-up sliding door with heat preservation function, which has the following beneficial effects:

[0019] 1. Through the innovative design of the insulation device, the problem of poor insulation performance of traditional sliding doors is effectively solved. The insulation device consists of components such as frame, glass and spacer. The double-glazed design, combined with the use of spacer, significantly improves the overall insulation effect of the doors and windows. The spacer can be vacuumed or filled with inert gas to further enhance the heat insulation performance. The detachable design of the frame and mullion not only facilitates installation and maintenance, but also effectively solves the problem of air leakage at the joints through the cooperation of the pressing strip and sealing strip. This structural design greatly reduces the thermal bridge effect, improves the overall energy efficiency of the doors and windows, ensures stable indoor temperature, and enhances living comfort.

[0020] 2. The quick-installation device cleverly solves the problems of complex and time-consuming installation of traditional sliding doors. The device includes the coordinated work of components such as control rod, lock sleeve, lock bar, lock seat, linkage block, linkage groove and limiting groove, which realizes the rapid installation and disassembly of doors and windows. The frame, glass and sealing strip can be installed and fixed by simple pressing operation, which greatly reduces the installation difficulty and time cost. This design not only improves the installation efficiency, but also reduces the possibility of errors during the installation process, and ensures the sealing and heat insulation performance of doors and windows.

[0021] 3. The innovative design of the quick-release mechanism further optimizes the maintenance and replacement process of doors and windows. This mechanism includes components such as guide grooves, slide rails, ball bearings, and guide blocks. Through ingenious structural design, it enables quick disassembly and replacement of the sealing strip. The spiral guide groove, combined with the design of the guide block, slows down the reset speed of the lock strip and control rod. The cooperation of the ball bearings and slide rails greatly improves the reset speed of the lock sleeve. Furthermore, the structural characteristics of the reset spring and push spring are compared to form a significant speed difference. This design not only simplifies the replacement process of the sealing strip but also reduces the difficulty of operation, allowing users to easily perform daily maintenance. The design of the quick-release mechanism effectively solves the problem of difficult replacement of sealing strips in traditional sliding doors, extends the service life of doors and windows, and ensures long-term thermal insulation performance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a lift-up sliding door with heat preservation function according to this utility model;

[0023] Figure 2 This is a schematic diagram of the dispersed structure in this utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the quick-installation device and quick-release mechanism in this utility model;

[0025] Figure 4 This is a schematic diagram of the locking sleeve part in this utility model;

[0026] Figure 5 This is a cross-sectional view of the locking bar portion in this utility model.

[0027] In the diagram: 1. Mullion; 2. Frame; 3. Glass; 4. Spacer layer; 5. Control lever; 6. Lock sleeve; 7. Lock bar; 8. Lock seat; 9. Linkage block; 10. Linkage groove; 11. Limiting groove; 12. Guide groove; 13. Slide rail; 14. Ball bearing; 15. Guide block; 16. Clearance groove; 17. Linkage spring; 18. Return spring; 19. Push spring; 20. Push plate; 21. Clamping plate; 22. Pressing strip; 23. Sealing strip. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5 A heat-insulating sliding door includes a mullion 1, with heat-insulating devices on both sides of the mullion 1. Each heat-insulating device includes a frame 2, glass 3, and a spacer layer 4. The frame 2 is detachably mounted on both sides of the mullion 1, the glass 3 is mounted on both sides of the mullion 1, and the spacer layer 4 is positioned between two layers of glass 3. A quick-installation device is provided on one side of the frame 2. The quick-installation device includes a control rod 5, a lock sleeve 6, a lock bar 7, a lock seat 8, a linkage block 9, a linkage groove 10, and a limiting groove 11. The control rod 5 is rotatably connected to one end of the lock bar 7, the lock bar 7 is housed in the lock sleeve 6, and the lock sleeve 6 is detachably mounted in the lock seat 8. One side of the moving block 9 passes through the linkage groove 10 and engages in the limiting groove 11. The linkage groove 10 penetrates the side wall of the lock sleeve 6, and the limiting groove 11 is opened on the inner side of the lock seat 8. A quick-release mechanism is provided on the outer side of the control rod 5. The quick-release mechanism includes a guide groove 12, a slide rail 13, a ball bearing 14, and a guide block 15. The guide groove 12 is spirally opened on the outer wall of the control rod 5. The guide block 15 is fixedly set on the inner wall of the lock sleeve 6 and slides in the guide groove 12. Multiple slide rails 13 are opened on the inner wall of the lock seat 8, and multiple balls bearing 14 are rolled on the outer side of the lock sleeve 6 and roll in the slide rails 13.

[0032] In this embodiment, when the sliding door needs to be assembled as a whole, firstly, a layer of sealing strip 23 is installed on both sides of the mullion 1. Then, two specially coated glass panes 3 are placed on both sides of the mullion 1 and pressed against one side of the sealing strip 23. Then, a sealing strip 23 is placed on the outside of each glass pane 3. Then, two frame frames 2 are placed on the outside of the two glass panes 3, so that the frame frames 2 press against the sealing strip 23. Then, the lock seat 8 is inserted into its edge, and the lock sleeve 6 is fixed. Pressing the control lever 5 will cause the guide groove 12 on the outside to move. Due to the limiting of the guide block 15, the guide... The groove 12 causes the control lever 5 to rotate at a certain angle, and the control lever 5 causes the locking bar 7 to move. Then, the locking bar 7 moves the linkage block 9 and the linkage spring 17 through the relief groove 16. Then, the side wall of the linkage groove 10 presses against the chamfered side of the linkage block 9, causing the linkage block 9 to gradually retract into the relief groove 16 and press against the linkage spring 17. At the same time, the locking bar 7 presses against the reset spring 18 set on one side. When the linkage spring 17 is pressed to its limit, the guide block 15 is at the other end of the guide groove 12, and the outer wall of the linkage block 9 is flush with the outer wall of the lock sleeve 6. Then, the lock sleeve 6 is inserted into the lock seat 8 from the other side of the frame 2. The slide rail 13 in the lock seat 8 is aligned with the position of the ball bearing 14, causing the ball bearing 14 to roll into the slide rail 13. The lock sleeve 6 then slides into the lock seat 8, and the push plate 20 contacts the inner wall of the lock seat 8. The lock sleeve 6 and the push plate 20 then work together to compress the push spring 19. When the push spring 19 is compressed to its limit, the control lever 5 is released, and the return spring 18 pushes the lock bar 7 to reset. The lock bar 7 then moves the receiving groove to reset, causing the receiving groove to move the linkage spring 17 and the linkage block 9. The linkage spring 17 gradually slides the linkage block 9 out of the clearance groove 16, and the linkage block 9 passes through the linkage groove 10 and engages with the limiting groove 1. In step 1, the lock bar 7 simultaneously pushes the control lever 5 to reset, causing the control lever 5 to move the guide groove 12. Then, due to the presence of the guide block 15, the guide groove 12 causes the control lever 5 to rotate slightly, thus completely resetting the control lever 5. Then, the latch plate 21 on one side of the lock sleeve 6 is released. At this time, the latch plate 21 on one side of the lock sleeve 6 and the latch plate 21 on one end of the lock seat 8 press the frame 2 and glass 3 against the outside of the mullion 1, and the pressing strips 22 on one side of the frame 2 and both sides of the mullion 1 press the sealing strip 23 against both sides of the glass 3, ensuring the sealing at the joint, thereby improving the heat insulation performance of the sliding door.

[0033] Please see Figures 1-5 As a further implementation of the overall equipment: a clearance groove 16 is provided on the inner side of the locking bar 7, and multiple linkage springs 17 are movably arranged in the clearance groove 16. One side of the linkage block 9 is connected to the inner wall of the clearance groove 16 through the linkage springs 17.

[0034] One end of the locking bar 7 is connected to a return spring 18, and one end of the locking bar 7 is connected to the inner wall of the lock sleeve 6 through the return spring 18.

[0035] A push spring 19 is connected to one side of the lock sleeve 6, and a push plate 20 is connected to the other end of the push spring 19. The inner wall of the lock seat 8 is connected to the other side of the push plate 20 in a contact manner.

[0036] The diameter of the return spring 18 is smaller than that of the push spring 19, and the number of turns of the return spring 18 is less than that of the push spring 19.

[0037] Both the lock sleeve 6 and the lock seat 8 have a locking plate 21 fixed on one side.

[0038] The frame 2 has a symmetrical pressing strip 22 on one side and the mullion 1 on both sides, and the glass 3 has a detachable sealing strip 23 on both sides.

[0039] The spacer layer 4 can be evacuated or filled with inert gas.

[0040] More specifically, when maintenance or replacement of the sealing strip 23 is required, press and release the control lever 5. The control lever 5 then moves the guide groove 12 again. Due to the fixed setting of the guide block 15, the guide groove 12 causes the control lever 5 to rotate, and the control lever 5 causes the locking strip 7 to move downward, so that the locking strip 7 and the inner wall of the locking sleeve 6 cooperate to press the return spring 18. At the same time, the locking strip 7 drives the linkage spring 17 and linkage block 9 set in the clearance groove 16 to move. Due to the linkage groove 10 and the limiting groove 11 The limiting mechanism causes the linkage block 9 to gradually be drawn into the clearance groove 16 and press against the linkage spring 17, then directly releases the control lever 5. Because the push spring 19 has more turns than the return spring 18, and the diameter of the push spring 19 is larger than that of the return spring 18, and the ball bearing 14 reduces the sliding friction between the inner wall of the lock seat 8 and the outer wall of the lock sleeve 6, and the spirally arranged guide groove 12 and guide block 15 increase the difficulty of resetting the control lever 5 and the lock bar 7, the friction between the outer wall of the linkage rod and the outer wall of the control lever 5 and the inner wall of the lock sleeve 6 is increased. Due to the sliding friction between the walls, the push spring 19 will first push the lock sleeve 6 to slide and reset, causing the lock sleeve 6 to slide the limiting groove 11 to one side, and causing the lock sleeve 6 to drive the ball 14 to roll along the slide rail 13. At this time, the outer wall of the linkage block 9 is limited by the inner wall of the lock seat 8, so the linkage spring 17 cannot reset. Then the reset spring 18 will push the linkage block 9 to slide and reset, and the linkage block 9 will drive the clearance groove 16 to slide and reset. The lock bar 7 pushes the control rod 5 to slide. Due to the setting of the guide block 15 and the special structural design of the guide groove 12, the control rod 5 will rotate during the reset process. Then the lock sleeve 6 and the lock seat 8 will be removed by the card plate 21. At this time, the linkage spring 17 pushes the linkage block 9 to slide out of the clearance groove 16 and pass through the linkage groove 10. Then the frame 2, glass 3 and sealing strip 23 can be removed in sequence and replaced with a new sealing strip 23. Then, the sealing strip 23 can be quickly installed and replaced by following the previous steps.

[0041] In summary, when using or operating the overall equipment: First, when assembling the sliding door as a whole, install a layer of sealing strip 23 on both sides of the mullion 1. Then, place two specially coated glass panes 3 on both sides of the mullion 1 and press them against one side of the sealing strip 23. Next, place one side of the sealing strip 23 on the outside of each glass pane 3. Then, place the two frame frames 2 on the outside of the two glass panes 3, pressing the sealing strip 23 against them. Then, insert the lock seat 8 into its edge, fix the lock sleeve 6, and press down the control lever 5. The control lever 5 will move the guide groove 12 on the outside, due to the guide block 15... The guide groove 12 will then drive the control lever 5 to rotate at a certain angle, and the control lever 5 will drive the lock bar 7 to move. Then the lock bar 7 will drive the linkage block 9 and the linkage spring 17 to move through the relief groove 16. Then the side wall of the linkage groove 10 will press against the chamfered side of the linkage block 9, so that the linkage block 9 will gradually be retracted into the relief groove 16 and press against the linkage spring 17. At the same time, the lock bar 7 will press against the reset spring 18 set on one side. When the linkage spring 17 is pressed to the limit, the guide block 15 is at the other end of the guide groove 12, and the outer wall of the linkage block 9 is flush with the outer wall of the lock sleeve 6. Then the lock sleeve 6 is inserted into the lock from the other side of the frame 2. In the lock seat 8, the slide rail 13 in the lock seat 8 is aligned with the position of the ball bearing 14, and the ball bearing 14 rolls into the slide rail 13. The lock sleeve 6 slides into the lock seat 8, and then the push plate 20 contacts the inner wall of the lock seat 8. The lock sleeve 6 and the push plate 20 work together to press the push spring 19. When the push spring 19 is pressed to its limit, the control lever 5 is released, and then the return spring 18 pushes the lock bar 7 to reset. The lock bar 7 will drive the storage groove to reset, causing the storage groove to move the linkage spring 17 and the linkage block 9. Then the linkage spring 17 will gradually slide the linkage block 9 out of the clearance groove 16, and the linkage block 9 will pass through the linkage groove 10 and engage to the limit. In the groove 11, the lock bar 7 pushes the control rod 5 to reset, causing the control rod 5 to move the guide groove 12. Then, due to the presence of the guide block 15, the guide groove 12 causes the control rod 5 to rotate slightly, thus completely resetting the control rod 5. Then, the latch plate 21 on one side of the lock sleeve 6 is released. At this time, the latch plate 21 on one side of the lock sleeve 6 and the latch plate 21 on one end of the lock seat 8 press the frame 2 and the glass 3 against the outside of the mullion 1, and the pressing strips 22 on one side of the frame 2 and both sides of the mullion 1 press the sealing strip 23 against both sides of the glass 3, ensuring the sealing at the joint, thereby improving the heat insulation performance of the sliding door.

[0042] When maintenance or replacement of the sealing strip 23 is required, press and release the control lever 5. The control lever 5 will then move the guide groove 12 again. Due to the fixed setting of the guide block 15, the guide groove 12 will cause the control lever 5 to rotate, and the control lever 5 will cause the locking strip 7 to move downward, so that the locking strip 7 and the inner wall of the locking sleeve 6 will cooperate to press the return spring 18. At the same time, the locking strip 7 will move the linkage spring 17 and linkage block 9 set in the clearance groove 16. Due to the limiting of the linkage groove 10 and the limiting groove 11, This causes the linkage block 9 to gradually be drawn into the clearance groove 16 and press against the linkage spring 17, then directly releases the control lever 5. Because the push spring 19 has more turns than the return spring 18, and the diameter of the push spring 19 is larger than that of the return spring 18, and the ball bearing 14 reduces the sliding friction between the inner wall of the lock seat 8 and the outer wall of the lock sleeve 6, and the spirally arranged guide groove 12 and guide block 15 increase the difficulty of resetting the control lever 5 and the lock bar 7, this increases the friction between the outer wall of the linkage rod and the control lever 5 and the inner wall of the lock sleeve 6. Due to the sliding friction between them, the push spring 19 will first push the lock sleeve 6 to slide and reset, causing the lock sleeve 6 to slide the limiting groove 11 to one side, and causing the lock sleeve 6 to drive the ball 14 to roll along the slide rail 13. At this time, the outer wall of the linkage block 9 is limited by the inner wall of the lock seat 8, so the linkage spring 17 cannot reset. Then the reset spring 18 will push the linkage block 9 to slide and reset, and the linkage block 9 will drive the clearance groove 16 to slide and reset. The lock bar 7 will push the control rod 5 to slide. Due to the setting of the guide block 15 and the special structural design of the guide groove 12, the control rod 5 will rotate during the reset process. Then the lock sleeve 6 and the lock seat 8 will be removed by the card plate 21. At this time, the linkage spring 17 will push the linkage block 9 to slide out of the clearance groove 16 and pass through the linkage groove 10. Then the frame 2, glass 3 and sealing strip 23 can be removed in sequence and replaced with a new sealing strip 23. Then, the sealing strip 23 can be quickly installed and replaced by following the previous steps.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thermal insulated sliding and folding door comprising a mullion (1), characterized in that: The heat preservation device is arranged on both sides of the mullion (1), and comprises a frame (2), a glass (3) and a spacing layer (4). The frame (2) is arranged on both sides of the mullion (1), the glass (3) is arranged on both sides of the mullion (1), and the spacing layer (4) is arranged between the two layers of glass (3). The frame (2) is provided with a quick mounting device on one side. The quick mounting device comprises a control rod (5), a lock sleeve (6), a lock strip (7), a lock seat (8), a linkage block (9), a linkage groove (10) and a limiting groove (11). The control rod (5) is rotationally connected to one end of the lock strip (7). The linkage block (9) is clamped in the limiting groove (11) through the linkage groove (10) on one side. The linkage groove (10) penetrates the side wall of the lock sleeve (6). The limiting groove (11) is formed in the inner side of the lock seat (8). The control rod (5) is provided with a quick release mechanism on the outer side. The quick release mechanism comprises a guide groove (12), a sliding rail (13), a plurality of rolling balls (14) and a guide block (15). The guide groove (12) is formed in the outer wall of the control rod (5) in a spiral manner. The guide block (15) is arranged on the inner wall of the lock sleeve (6). A plurality of sliding rails (13) are formed in the inner wall of the lock seat (8). A plurality of rolling balls (14) are rollingly arranged on the outer side of the lock sleeve (6).

2. The thermal insulated sliding door according to claim 1, wherein: A clearance groove (16) is formed in the inner side of the lock strip (7). A plurality of linkage springs (17) are movably arranged in the clearance groove (16). The linkage block (9) is connected to the inner wall of the clearance groove (16) through the linkage springs (17) on one side.

3. The thermal insulated sliding door according to claim 1, wherein: the thermal insulation layer is made of a material selected from the group consisting of glass, wood, metal, plastic, and ceramic. A reset spring (18) is connected to one end of the lock strip (7). The lock strip (7) is connected to the inner wall of the lock sleeve (6) through the reset spring (18) on one end.

4. The thermal insulated sliding door according to claim 3, wherein: A push spring (19) is connected to one side of the lock sleeve (6). The other end of the push spring (19) is connected with a push plate (20). The other side of the push plate (20) is connected to the inner wall of the lock seat (8) in a contact manner.

5. The thermal insulated sliding door according to claim 4, wherein: the thermal insulation layer is made of a material selected from the group consisting of glass, wood, metal, plastic, and ceramic. The diameter of the reset spring (18) is smaller than that of the push spring (19), and the number of turns of the reset spring (18) is less than that of the push spring (19).

6. The thermal insulated sliding door according to claim 5, wherein: The lock sleeve (6) and the lock seat (8) are fixedly provided with a clamping plate (21) on one side.

7. The thermal insulated sliding door according to any one of claims 1 to 6, characterized in that: The frame (2) and the mullion (1) are symmetrically provided with a pressing strip (22) on one side. The glass (3) is detachably provided with a sealing strip (23) on both sides.

8. The thermal insulated sliding door according to claim 7, wherein: The spacing layer (4) can be vacuumized or filled with inert gas.

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