A simple installation and adjustment linkage door

Abstract

A kind of simply installed linkage door of adjusting, including upper track, linkage mechanism, first sliding door of sliding guide installation on upper track and second sliding door of sliding guide installation on upper track, linkage mechanism includes linkage rope, fixed wire clamp, mobile wire clamp cooperatively connected on second sliding door and two linkage wheels respectively located on the both ends of second sliding door, linkage rope is wound on two linkage wheels, mobile wire clamp and fixed wire clamp are connected with linkage rope, upper track is equipped with wire clamp sliding groove extending from left to right, fixed wire clamp is equipped with wire clamp sliding part in sliding cooperation in wire clamp sliding groove and wire clamp screw hole being set through, fixed wire clamp is based on wire clamp sliding part and left and right adjusting position along wire clamp sliding groove, wire clamp screw hole is inserted with wire clamp adjusting bolt for locking fixed wire clamp on upper track.The utility model has the advantages of good adjusting flexibility and convenient installation, effectively improves the installation quality of linkage door and improves the installation efficiency of linkage door.

Description

Technical Field

[0001] This utility model relates to the field of door technology, specifically to a simple-to-install and adjustable linkage door. Background Technology

[0002] A sliding linkage door is a door system that features a sliding opening mechanism and linkage function.

[0003] A shower enclosure with a fixed double-linkage sliding door, as described in application number CN202322947792.0, includes a fixed door, a top support frame, a main sliding door, and a secondary sliding door. The top support frame is equipped with a linkage mechanism, which includes a movable clamp, a fixed clamp, a linkage rope, and two linkage pulleys. The movable clamp is connected to the main sliding door, and the fixed clamp is connected to the top support frame. The two linkage pulleys are rotatably connected to both ends of the secondary sliding door. The linkage rope is wound between the two linkage pulleys. The movable clamp is connected to the linkage rope, and the fixed clamp is also connected to the linkage rope. The fixed clamp includes a fixed block and a second clamp block. The fixed block is connected to the top support frame. The second clamp block has a U-shaped groove, and one side of the U-shaped groove has a second threaded hole. A bolt is threaded into the second threaded hole, clamping the linkage rope within the U-shaped groove, thus fixing the fixed clamp and the linkage rope together.

[0004] In this technical solution, the fixing block has an elongated hole through which the fixing bolt can be connected to the top support frame. After loosening the fixing bolt, the fixing block can be adjusted to its left or right position relative to the fixing bolt through the elongated hole, thereby adjusting the left and right position of the fixing clamp. This meets the installation requirements of sliding doors, making the sliding door's linkage smoother and improving the sealing effect after closing. However, the adjustment range of the elongated hole is limited by its own length and cannot cover the cumulative tolerance deviations of multiple components. Therefore, the existing linkage mechanism suffers from poor adjustment flexibility and convenience, requiring improvement. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a linkage door that is easy to install and adjust.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A simple-to-install and adjustable linkage door includes an upper track, a linkage mechanism, a first sliding door and a second sliding door with sliding guides mounted on the upper track. The linkage mechanism includes a linkage rope, a fixed clamp, a movable clamp connected to the second sliding door, and two linkage wheels located at both ends of the second sliding door. The linkage rope is wound around the two linkage wheels. The movable clamp and the fixed clamp are both connected to the linkage rope. The upper track is characterized by having a clamp groove extending from left to right. The fixed clamp has a clamp sliding part that slides in the clamp groove and a through clamp screw hole. The fixed clamp adjusts its position left and right based on the sliding part of the clamp sliding along the clamp groove. A clamp adjusting bolt for locking the fixed clamp to the upper track is inserted into the clamp screw hole.

[0007] In this utility model, the first sliding door includes a first door body and a first pulley system disposed at the upper end of the first door body, and the second sliding door includes a second door body and a second pulley system disposed at the upper end of the second door body. The upper track is provided with a first sliding groove that cooperates with the first pulley system and a second sliding groove that cooperates with the second pulley system. The wire clamp groove, the first sliding groove and the second sliding groove are parallel to each other and both extend from left to right.

[0008] In this utility model, the first pulley system includes a mating wheel device and a buffer wheel device. Both the mating wheel device and the buffer wheel device include a first connecting seat, a first wheel seat, and a first roller. The first connecting seat is connected to the upper end of the first door body, and the first wheel seat is height-adjustably mounted on the first connecting seat. The first roller is rotatably mounted on the first wheel seat and rolls against the first guide portion in the first sliding groove. The movable clamp is mounted on the first wheel seat of the mating wheel device using a movable bolt.

[0009] In this utility model, the first wheel seat is provided with a vertically penetrating first lifting groove and a first adjusting screw hole that is inclined relative to and communicates with the first lifting groove. The first connecting body at the upper end of the first connecting seat is provided with a first inclined surface. The first connecting body is inserted into the first lifting groove. The first adjusting screw hole is threaded with a first lifting bolt. The screw end of the first lifting bolt slides against the first inclined surface.

[0010] In this invention, the buffer wheel device further includes a buffer pulley, which is connected to the first wheel seat of the buffer wheel device. The first sliding groove is provided with a buffer trigger for cooperating with the buffer pulley.

[0011] In this utility model, the second pulley system includes at least two second pulley devices arranged along the moving direction of the second sliding door. The second pulley device includes a second connecting seat, a mounting arm, a second wheel seat, and a second roller. The second roller is rotatably mounted on the second wheel seat. The second connecting seat is connected to the upper end of the second door body. The mounting arm is provided with a mounting shaft hole. The lower side of the mounting shaft hole is provided with a swing clearance opening that penetrates downward through the bottom of the mounting arm. The second connecting seat is provided with a connecting arm that passes through the swing clearance opening. The connecting arm is provided with a connecting shaft that is rotatably adapted to the mounting shaft hole. The mounting shaft hole and the swing clearance opening are both provided through the mounting arm at their front and rear ends. The mounting arm is provided with front and rear limiting grooves on one or both sides. The second connecting seat is threaded with a limiting bolt that is inserted into the front and rear limiting grooves to prevent the connecting shaft from moving back and forth and coming out of the mounting shaft hole.

[0012] In this utility model, the second wheel seat is provided with a vertically penetrating second lifting groove and a second adjusting screw hole that is inclined relative to and communicates with the second lifting groove. The mounting arm is provided with a second inclined surface. The mounting arm is inserted into the second lifting groove. A matching second lifting bolt is threaded in the second adjusting screw hole. The screw end of the second lifting bolt slides against the second inclined surface.

[0013] In this utility model, the linkage mechanism further includes a linkage base, and two linkage wheels are rotatably mounted on the linkage base via linkage mounting shafts. The linkage base is detachably mounted on the second sliding door.

[0014] In this utility model, the linkage door also includes a fixed door located below the upper track, and the second sliding door is located between the fixed door and the first sliding door; the bottom of the second door body of the second sliding door is provided with a second guide groove, and the lower end of the fixed door is provided with a fixed guide component for guiding the second sliding door to move left and right, and the fixed guide component is at least partially guided and engaged in the second guide groove; the lower end of the second door body of the second sliding door is equipped with a movable guide component, and the bottom of the first door body of the first sliding door is provided with a first guide groove for cooperating with the movable guide component, and the movable guide component is at least partially guided and engaged in the first guide groove.

[0015] In this invention, both the fixed guide assembly and the movable guide assembly include a guide mounting seat, a guide mounting shaft mounted on the guide mounting seat, and a lower guide wheel mounted on the guide mounting shaft. The guide mounting seat of the fixed guide assembly is fixedly mounted on the lower end of the fixed door, and the circumferential surface of the lower guide wheel of the fixed guide assembly rolls in contact with the sidewall of the second guide groove. The guide mounting seat of the movable guide assembly is height-adjustably mounted on the lower end of the second door body of the second sliding door, and the circumferential surface of the lower guide wheel of the movable guide assembly rolls in contact with the sidewall of the first guide groove.

[0016] The beneficial effects of this utility model are: 1. This utility model provides a wire clamp slide groove extending from left to right on the upper track, allowing the fixed wire clamp to slide and adjust along the entire length of the slide groove. The adjustment range covers the length of the upper track. After adjustment, it is only necessary to loosen / tighten the wire clamp adjustment bolt to complete the adjustment. The operation is simple, improves the smoothness of the sliding door linkage and the sealing performance of the door closing, and effectively meets various installation requirements of the fixed wire clamp. 2. The mounting shaft hole and the swing clearance opening are both designed to be through the mounting arm at both ends, so as to facilitate the insertion of the connecting shaft and the connecting arm into the corresponding mounting shaft hole and the swing clearance opening from the front or rear end, thereby improving the installation convenience of the second door. 3. The heights of both the first and second doors can be flexibly adjusted to adapt to different installation scenarios, avoiding operational jams caused by height deviations. At the same time, the height of the moving guide component is adjustable to adapt to the height difference between the doors, eliminating the need for welding installation and reducing transportation damage. 4. The linkage mechanism is modularly installed through the linkage base, which facilitates integration, assembly, and subsequent maintenance and replacement.

[0017] In summary, this utility model has the advantages of good adjustment flexibility and convenient installation, which effectively improves the installation quality and efficiency of the linkage door. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram showing the arrangement of the first sliding door, the second sliding door, and the fixed sliding door; Figure 2 A 3D diagram of the linkage mechanism; Figure 3 This is a schematic diagram for installing the fixed wire clamp; Figure 4 A combination of a linkage mechanism, a first pulley system, and a second pulley system. Figure 1 ; Figure 5 A combination of a linkage mechanism, a first pulley system, and a second pulley system. Figure 2 ; Figure 6 This is a schematic diagram of the installation of the second pulley device; Figure 7 This is a schematic diagram of the installation of the second pulley system; Figure 8 Installation diagram of fixed guide assembly and movable guide assembly. Figure 1 Figure 9 Installation diagram of fixed guide assembly and movable guide assembly. Figure 2 . Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] Reference Figure 1-9 A simple-to-install and adjustable linkage door includes an upper track 1, a linkage mechanism 2, a first sliding door 3 with sliding guides installed on the upper track 1, and a second sliding door 4 with sliding guides installed on the upper track 1. The linkage mechanism 2 includes a linkage rope 21, a fixed clamp 22, a movable clamp 23 connected to the second sliding door 4, and two linkage wheels 24 located at both ends of the second sliding door 4. The linkage rope 21 is wound around the two linkage wheels 24, and the movable clamp 23 and the fixed clamp 22 are both connected to the linkage rope 21.

[0021] Furthermore, the upper rail 1 is provided with a wire clamp groove 11 extending from left to right. The fixed wire clamp 22 is provided with a wire clamp sliding part 221 that slides in the wire clamp groove 11 and a wire clamp screw hole 222 that passes through it. The fixed wire clamp 22 adjusts its position left and right based on the sliding part 221 along the wire clamp groove 11. A wire clamp adjusting bolt 25 for locking the fixed wire clamp 22 on the upper rail 1 is inserted in the wire clamp screw hole 222. The upper rail 1 is provided with a wire clamp locking surface 12 for cooperating with the wire clamp adjusting bolt 25. The wire clamp adjusting bolt 25 is preferably a set screw. The wire clamp screw hole 222 is vertically inserted through the fixed wire clamp 22.

[0022] In this embodiment, there are at least two wire clamp screw holes 222, and each wire clamp screw hole 222 corresponds to a wire clamp adjusting bolt 25 to enhance the stability and fixing effect of the fixed wire clamp 22 on the upper rail 1. When the wire clamp adjusting bolt 25 is pressed against the wire clamp locking surface 12, the fixed wire clamp 22 is fixed on the upper rail 1 and cannot be moved. When it is necessary to adjust the position of the fixed wire clamp 22, the wire clamp adjusting bolt 25 is loosened first, and then the fixed wire clamp 22 is pushed to move left and right along the wire clamp slide groove 11. Then the wire clamp adjusting bolt 25 is tightened again at the desired position to complete the position adjustment of the fixed wire clamp 22.

[0023] In this embodiment, the fixing clamp 22 is provided with a fixing through hole 223 for the linkage rope 21 to pass through and a fixing locking hole 224 perpendicularly connected to the fixing through hole 223. A fixing locking bolt 26 for locking the linkage rope 21 in the fixing through hole 223 is threaded into the fixing locking hole 224. After the linkage rope 21 passes through the fixing through hole 223, the fixing locking bolt 26 is tightened to press the linkage rope 21, thereby achieving the combined positioning between the fixing clamp 22 and the linkage rope 21. Furthermore, both ends of the linkage rope 21 are fixed to the fixing clamp 22, so that the fixing clamp 22 and the linkage rope 21 form a ring structure.

[0024] In this embodiment, the first sliding door 3 includes a first door body 31 and a first pulley system disposed on the upper end of the first door body 31, and the second sliding door 4 includes a second door body 41 and a second pulley system disposed on the upper end of the second door body 41. The upper track 1 is provided with a first sliding groove 13 that cooperates with the first pulley system and a second sliding groove 14 that cooperates with the second pulley system. The wire clamp groove 11, the first sliding groove 13 and the second sliding groove 14 are parallel to each other and both extend from left to right.

[0025] In this embodiment, the first pulley system includes a mating wheel device 32 and a buffer wheel device 33. Both the mating wheel device 32 and the buffer wheel device 33 include a first connecting seat 34, a first wheel seat 35, and a first roller 36. The first connecting seat 34 is connected to the upper end of the first door body 31. The upper end of the door frame of the first door body 31 is provided with two first mounting grooves 311 corresponding to the mating wheel device 32 and the buffer wheel device 33, respectively. One side end of the first mounting groove 311 is provided with a first insertion port that penetrates the side of the first door body 31. The first insert at the lower end of the first connecting seat 34 passes through the first insertion port and fits in the first mounting groove 311. A first locking bolt 37 threaded on the door frame of the first door body 31 is inserted into the first insert, thereby fixing the first connecting seat 34 to the first door body 31.

[0026] Furthermore, the first wheel seat 35 is height-adjustably mounted on the first connecting seat 34. The first wheel seat 35 is provided with a vertically penetrating first lifting groove 351 and a first adjusting screw hole that is inclined relative to and communicates with the first lifting groove 351. The first connecting body at the upper end of the first connecting seat 34 is provided with a first inclined surface 341. The first connecting body is inserted into the first lifting groove 351. A first lifting bolt 38 is threadedly fitted in the first adjusting screw hole. The screw end of the first lifting bolt 38 slides against the first inclined surface 341. By rotating the first lifting bolt 38, the first connecting seat 34 can be moved up or down relative to the first wheel seat 35, thereby realizing the adjustment of the height of the first door body 31.

[0027] Furthermore, the first roller 36 is rotatably mounted on the first wheel seat 35 via the first wheel axle, and the first roller 36 rolls and engages with the first guide portion in the first sliding groove 13, thereby guiding the first door body 31.

[0028] Furthermore, the movable clamp 23 is mounted on the first wheel seat 35 of the mating wheel device 32 using a movable bolt 39. The movable bolt 39 passes through the movable clamp 23 and is threadedly connected to the first wheel seat 35 of the mating wheel device 32. The movable clamp 23 is provided with a movable through hole 231 for the linkage rope 21 to pass through and a movable locking rope hole 232 that is perpendicularly connected to the movable through hole 231. A movable locking rope bolt 27 is threadedly connected to the movable locking rope hole 232. When the linkage rope 21 passes through the movable through hole 231, the movable locking rope bolt 27 is tightened to press the linkage rope 21, thereby realizing the combined positioning between the movable clamp 23 and the linkage rope 21.

[0029] Furthermore, the buffer wheel device 33 also includes a buffer pulley 30, which is riveted to the first wheel seat 35 of the buffer wheel device 33. The first sliding groove 13 is provided with a buffer trigger 5 for cooperating with the buffer pulley 30. Both the buffer trigger 5 and the buffer pulley 30 are common components in the prior art, so they will not be described in detail. Through the cooperation of the buffer trigger 5 and the buffer pulley 30, the buffer can play a shock absorption and buffering role during the sliding of the first sliding door 3, thereby improving the smoothness and quietness of the sliding door operation.

[0030] In this embodiment, the second pulley system includes at least two second pulley devices 42 arranged along the moving direction of the second sliding door 4. Each second pulley device 42 includes a second connecting seat 43, a mounting arm 44, a second wheel seat 45, and a second roller 46. The second roller 46 is rotatably mounted on the second wheel seat 45 via a second wheel axle. The second connecting seat 43 is connected to the upper end of the second door body 41. The mounting arm 44 is provided with a mounting shaft hole 441. The lower side of the mounting shaft hole 441 is provided with a swing clearance opening 442 that extends downward through the bottom of the mounting arm 44. The second connecting seat 43 is provided with a connecting arm 431 that passes through the swing clearance opening 442 and can swing left and right within the swing clearance opening 442. The connecting arm 431 is fixed with a connecting shaft 432 that is rotatably adapted to the mounting shaft hole 441, thereby realizing the rotational connection between the mounting arm 44 and the connecting arm 431.

[0031] When the second connecting seat 43 is rotatably connected to the mounting arm 44, the second connecting seat 43 can be rotatably and swing about the connecting shaft 432 as the rotation center relative to the second wheel seat 45. During the movement of the second door 41 to the left or right, the height of the second door 41 can be flexibly adjusted by the swinging action of the second connecting seat 43, so that each of the second rollers 46 of the second pulley device 42 can always maintain good contact with the surface of the second guide rail of the second sliding groove 14. This not only avoids the problem of uneven force caused by rigid connection, but also prevents some of the second rollers 46 from being suspended when the second door 41 moves, reduces abnormal wear of the second rollers 46, and achieves the purpose of extending the service life of the second pulley device 42.

[0032] In this embodiment, both the front and rear ends of the mounting shaft hole 441 and the swing clearance opening 442 are provided through the mounting arm 44, which facilitates the insertion of the connecting shaft 432 and the connecting arm 431 from the front or rear end into the corresponding mounting shaft hole 441 and swing clearance opening 442. The mounting arm 44 has front and rear limiting grooves 443 on one or both sides. The second connecting seat 43 is threaded with limiting bolts 47 that are inserted into the front and rear limiting grooves 443 to prevent the connecting shaft 432 from moving back and forth and dislodging from the mounting shaft hole 441. At least one limiting bolt 47 is inserted into each front and rear limiting groove 443. Under the constraint of the limiting bolts 47, the connecting shaft 432 is restricted from moving back and forth, thus ensuring that the connecting shaft 432 is stably fitted in the mounting shaft hole 441. Through the above structural design, the ease of assembly and disassembly of the second door 41 is improved.

[0033] In this embodiment, the upper end of the second door body 41 is provided with a second mounting groove 411 corresponding to two second pulley devices 42 respectively. The lower part of the second connecting seat 43 is inserted into the second mounting groove 411 and is fixedly connected to the door frame of the second door body 41 by bolt connection, thereby fixing the second connecting seat 43 to the second door body 41. The second wheel seat 45 is provided with a vertically penetrating second lifting groove 451 and a second adjusting screw hole that is inclined relative to the second lifting groove 451 and communicates with the second lifting groove 451. The mounting arm 44 is provided with a second inclined surface 444. The mounting arm 44 is inserted into the second lifting groove 451. The second adjusting screw hole is threaded with a matching second lifting bolt 48. The screw end of the second lifting bolt 48 slides against the second inclined surface 444. By rotating the second lifting bolt 48, the mounting arm 44 can move up or down relative to the second wheel seat 45. During the upward or downward movement, the mounting arm 44 drives the second door body 41 to rise or fall, thereby realizing the adjustment of the height of the second door body 41.

[0034] In this embodiment, the linkage mechanism 2 further includes a linkage base 28. Two linkage wheels 24 are rotatably mounted on the linkage base 28 via linkage mounting shafts. The linkage base 28 is detachably mounted on the second sliding door 4. The linkage base 28 facilitates the integrated mounting of components such as the linkage wheels 24 and linkage rope 21 onto the linkage base 28 before overall assembly onto the second sliding door 4. This modular installation of the linkage mechanism 2 not only improves assembly efficiency but also facilitates later maintenance and replacement. Furthermore, each linkage wheel 24 is provided with a groove to prevent the linkage rope 21 from slipping off. The linkage rope 21 is wound around the groove, thus preventing it from falling off the linkage wheel 24 during use and improving the stability and reliability of the structure.

[0035] In this embodiment, the second wheel seat 45 is provided with an installation assembly that clamps and fixes to the linkage base 28. The installation assembly includes an upper mounting seat 29 and a lower clamping block 20. The upper mounting seat 29 is fixed to the second wheel seat 45 non-rotatably with mounting bolts. The lower clamping block 20 is fixedly connected to the upper mounting seat 29 by connecting bolts and clamps the side of the linkage base 28, thereby realizing the quick installation and disassembly of the linkage door. During the installation process, simply loosen the lower clamping block 20, adjust the position of the linkage base 28, and then tighten the connecting bolts to align and fix the linkage door. In addition, the linkage base 28 is provided with a clearance opening slot 281. The clearance opening slot 281 is provided through the linkage base 28 from top to bottom and is used to avoid the connecting bolts, which pass through the clearance opening slot 281.

[0036] In this embodiment, the linkage door also includes a fixed door 6 located below the upper track 1, and the second sliding door 4 is located between the fixed door 6 and the first sliding door 3; the bottom of the second door body 41 of the second sliding door 4 is provided with a second guide groove 412, and the lower end of the fixed door 6 is provided with a fixed guide component 8 for guiding the second sliding door 4 when it moves left and right, and the fixed guide component 8 is at least partially guided and engaged in the second guide groove 412; the lower end of the second door body 41 of the second sliding door 4 is installed with a moving guide component 9, and the bottom of the first door body 31 of the first sliding door 3 is provided with a first guide groove 312 for cooperating with the moving guide component 9, and the moving guide component 9 is at least partially guided and engaged in the first guide groove 312.

[0037] Furthermore, both the fixed guide assembly 8 and the movable guide assembly 9 include a guide mounting base 101, a guide mounting shaft 102 mounted on the guide mounting base 101, and a lower guide wheel 103 mounted on the guide mounting shaft 102. The guide mounting base 101 of the fixed guide assembly 8 is fixedly mounted on the lower end of the fixed door 6, and the circumferential surface of the lower guide wheel 103 of the fixed guide assembly 8 rolls in contact with the sidewall of the second guide groove 412, thereby guiding the lower end of the second sliding door 4 left and right. The guide mounting base 101 of the movable guide assembly 9 is height-adjustably mounted on the lower end of the second door body 41 of the second sliding door 4, and the circumferential surface of the lower guide wheel 103 of the movable guide assembly 9 rolls in contact with the sidewall of the first guide groove 312, thereby guiding the lower end of the first sliding door 3 left and right. By setting the fixed guide assembly 8 and the movable guide assembly 9, the first sliding door 3 and the second sliding door 4 open and close more smoothly, effectively reducing door swaying.

[0038] Furthermore, the second door 41 has a door frame slot and a vertical elongated hole on its door frame. One end of the vertical elongated hole penetrates the side of the door frame of the second door 41, and the other end connects to the door frame slot. One end of the guide mounting seat 101 of the movable guide assembly 9 extends into the door frame slot. A guide fixing bolt 104 is inserted into the vertical elongated hole. The guide fixing bolt 104 is threaded onto one end of the guide mounting seat 101 of the movable guide assembly 9. Thus, after loosening the guide fixing bolt 104, the height position of the movable guide assembly 9 can be adjusted to adapt to the possible height difference between the first sliding door 3 and the second sliding door 4. It can also be installed on the construction site without welding, preventing the movable guide assembly 9 from being damaged by bumps during transportation.

[0039] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A simple-to-install and adjustable linkage door, comprising an upper track (1), a linkage mechanism (2), a first sliding door (3) with a sliding guide mounted on the upper track (1), and a second sliding door (4) with a sliding guide mounted on the upper track (1), wherein the linkage mechanism (2) comprises a linkage rope (21), a fixed clamp (22), a movable clamp (23) connected to the second sliding door (4), and two linkage wheels (24) located at both ends of the second sliding door (4), wherein the linkage rope (21) is wound around the two linkage wheels (24), and the movable clamp (23) and the fixed clamp (22) are both connected to the linkage rope (21), characterized in that: The upper rail (1) is provided with a wire clamp groove (11) extending from left to right. The fixed wire clamp (22) is provided with a wire clamp sliding part (221) that slides in the wire clamp groove (11) and a wire clamp screw hole (222) that passes through it. The fixed wire clamp (22) adjusts its position left and right based on the sliding of the wire clamp sliding part (221) along the wire clamp groove (11). A wire clamp adjusting bolt (25) for locking the fixed wire clamp (22) on the upper rail (1) is inserted in the wire clamp screw hole (222).

2. The easily installed and adjustable linkage door according to claim 1, characterized in that: The first sliding door (3) includes a first door body (31) and a first pulley system located at the upper end of the first door body (31). The second sliding door (4) includes a second door body (41) and a second pulley system located at the upper end of the second door body (41). The upper track (1) is provided with a first sliding groove (13) that cooperates with the first pulley system and a second sliding groove (14) that cooperates with the second pulley system. The wire clamp groove (11), the first sliding groove (13) and the second sliding groove (14) are parallel to each other and extend from left to right.

3. The easily installed and adjustable linkage door according to claim 2, characterized in that: The first pulley system includes a mating wheel device (32) and a buffer wheel device (33). Both the mating wheel device (32) and the buffer wheel device (33) include a first connecting seat (34), a first wheel seat (35), and a first roller (36). The first connecting seat (34) is connected to the upper end of the first door body (31). The first wheel seat (35) is height-adjustably mounted on the first connecting seat (34). The first roller (36) is rotatably mounted on the first wheel seat (35). The first roller (36) rolls and engages with the first guide portion in the first sliding groove (13). The movable clamp (23) is mounted on the first wheel seat (35) of the mating wheel device (32) using a movable bolt (39).

4. The easily installed and adjustable linkage door according to claim 3, characterized in that: The first wheel seat (35) is provided with a vertically penetrating first lifting groove (351) and a first adjusting screw hole that is inclined relative to the first lifting groove (351) and connected to the first lifting groove (351). The first connecting body at the upper end of the first connecting seat (34) is provided with a first inclined surface (341). The first connecting body is inserted into the first lifting groove (351). The first adjusting screw hole is threaded with a first lifting bolt (38). The screw end of the first lifting bolt (38) slides against the first inclined surface (341).

5. A simple-to-install and adjustable linkage door according to claim 3, characterized in that: The buffer wheel device (33) also includes a buffer pulley (30), which is connected to the first wheel seat (35) of the buffer wheel device (33). The first sliding groove (13) is provided with a buffer trigger (5) for cooperating with the buffer pulley (30).

6. A simple-to-install and adjustable linkage door according to claim 2, characterized in that: The second pulley system includes at least two second pulley devices (42) arranged along the moving direction of the second sliding door (4). The second pulley device (42) includes a second connecting seat (43), a mounting arm (44), a second wheel seat (45), and a second roller (46). The second roller (46) is rotatably mounted on the second wheel seat (45). The second connecting seat (43) is connected to the upper end of the second door body (41). The mounting arm (44) is provided with a mounting shaft hole (441). The lower side of the mounting shaft hole (441) is provided with a swing clearance opening (442) that penetrates downward through the bottom of the mounting arm (44). The connecting seat (43) is provided with a connecting arm (431) that passes through the swing clearance opening (442). The connecting arm (431) is provided with a connecting shaft (432) that is rotatably adapted to the mounting shaft hole (441). The mounting shaft hole (441) and the swing clearance opening (442) are both provided through the mounting arm (44). The mounting arm (44) is provided with front and rear limiting grooves (443) on one or both sides. The second connecting seat (43) is threaded with a limiting bolt (47) that is inserted into the front and rear limiting grooves (443) to prevent the connecting shaft (432) from moving back and forth and coming out of the mounting shaft hole (441).

7. A simple-to-install and adjustable linkage door according to claim 6, characterized in that: The second wheel seat (45) is provided with a vertically penetrating second lifting groove (451) and a second adjusting screw hole that is inclined relative to the second lifting groove (451) and connected to the second lifting groove (451). The mounting arm (44) is provided with a second inclined surface (444). The mounting arm (44) is inserted into the second lifting groove (451). The second adjusting screw hole is threaded with a matching second lifting bolt (48). The screw end of the second lifting bolt (48) slides against the second inclined surface (444).

8. A simple-to-install and adjustable linkage door according to any one of claims 1-7, characterized in that: The linkage mechanism (2) also includes a linkage base (28), and two linkage wheels (24) are rotatably mounted on the linkage base (28) via linkage mounting shafts. The linkage base (28) is detachably mounted on the second sliding door (4).

9. A simple-to-install and adjustable linkage door according to any one of claims 1-7, characterized in that: The linkage door also includes a fixed door (6) located below the upper track (1), and the second sliding door (4) is located between the fixed door (6) and the first sliding door (3); the bottom of the second door body (41) of the second sliding door (4) is provided with a second guide groove (412), and the lower end of the fixed door (6) is provided with a fixed guide component (8) for guiding the second sliding door (4) to move left and right, and the fixed guide component (8) is at least partially guided and fitted in the second guide groove (412); the lower end of the second door body (41) of the second sliding door (4) is provided with a moving guide component (9), and the bottom of the first door body (31) of the first sliding door (3) is provided with a first guide groove (312) for cooperating with the moving guide component (9), and the moving guide component (9) is at least partially guided and fitted in the first guide groove (312).

10. A simple-to-install and adjustable linkage door according to claim 9, characterized in that: Both the fixed guide assembly (8) and the movable guide assembly (9) include a guide mounting seat (101), a guide mounting shaft (102) mounted on the guide mounting seat (101), and a lower guide wheel (103) mounted on the guide mounting shaft (102). The guide mounting seat (101) of the fixed guide assembly (8) is fixedly mounted on the lower end of the fixed door (6), and the circumferential surface of the lower guide wheel (103) of the fixed guide assembly (8) rolls in contact with the side wall of the second guide groove (412). The guide mounting seat (101) of the movable guide assembly (9) is height-adjustably mounted on the lower end of the second door body (41) of the second sliding door (4), and the circumferential surface of the lower guide wheel (103) of the movable guide assembly (9) rolls in contact with the side wall of the first guide groove (312).

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