A linkage device for door closer

Abstract

The utility model relates to the technical field of door closer linkage, and proposes a door closer linkage device, including: having a plurality of door closers, the plurality of door closers are used to control the closing of a plurality of rolling doors, and the plurality of door closers are arranged in a circle; the door closer includes: an opening and closing assembly, the opening and closing assembly is used to connect with the rolling door; a pulling rope slidably arranged on the opening and closing assembly, after the pulling rope slides, the opening and closing assembly is driven to move; and also includes: a pull ring, having a plurality of pulling ropes of a plurality of door closers connected end to end to form a circle, a plurality of pull rings are arranged on the pulling rope at intervals, after a pull ring is pulled, a plurality of pulling ropes slide synchronously, and after the pulling rope slides, a plurality of door closers act synchronously. Through the above technical scheme, the problem of the low opening and closing efficiency of the rolling door caused by the separate control of the door closer in the related technology is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of door closer linkage, and in particular to a door closer linkage device. Background Art

[0002] In daily life, door closers undoubtedly play an indispensable role behind the scenes. However, in emergency situations, the opening process is significantly cumbersome. The current control mechanism requires people to manually or electrically control each rolling door unit one by one. This situation undoubtedly has a significant restrictive effect on the overall operating efficiency of the door closer, just like a complex piece of music that cannot be quickly switched to a rapid rhythm. Utility Model Content

[0003] The utility model provides a linkage device for a door closer, which solves the problem in the related art that the door closer is controlled separately and the closing efficiency of the rolling door is low.

[0004] The technical solution of the utility model is as follows:

[0005] A linkage device for a door closer, comprising:

[0006] There are a plurality of door closers, wherein the plurality of door closers are used to control the closing of a plurality of rolling doors;

[0007] The door closer comprises:

[0008] An opening and closing assembly having a limit end, wherein the limit end is used to open or close the brake member of the fireproof rolling door mechanism;

[0009] A pulling rope is arranged on the opening and closing component, and after the pulling rope moves, the opening and closing component is driven to move;

[0010] Also includes:

[0011] The pull ring has several pull ropes, and the pull ropes of several door closers are connected end to end in sequence. Several pull rings are arranged on the pull ropes at intervals. After pulling one of the pull rings, several pull ropes slide synchronously. After the pull rope slides, several door closers act synchronously.

[0012] As a further technical solution, it also includes:

[0013] There are several adjusting members, and the several pulling ropes are connected end to end through the adjusting members. The adjusting members are used to adjust the tightness of the several pulling ropes.

[0014] As a further technical solution, the adjusting member includes:

[0015] There are two screw rods, one end of each of which is connected to two ends of two pulling ropes respectively;

[0016] A connecting piece, wherein the two screw rods are respectively arranged at both ends of the connecting piece, and after the screw rods are rotated, they are used to adjust the tension or non-tension of the two pulling ropes.

[0017] As a further technical solution, the opening and closing assembly includes:

[0018] A chassis having a mounting cavity;

[0019] A moving block is slidably disposed in the installation cavity;

[0020] A first sliding rod, disposed on the moving block;

[0021] a first elastic member, one end of which is arranged on the moving block, and the other end of which is arranged on the chassis, and the first elastic member is sleeved on the first sliding rod, and the first elastic member is used to provide a force for the first sliding rod to slide toward the moving block;

[0022] The first electromagnet is arranged on the chassis and is located in the installation cavity. When the first electromagnet is energized, it drives the moving block to slide in the installation cavity.

[0023] As a further technical solution, the moving block has a snap-in groove, and the opening and closing assembly further includes:

[0024] A first swinging member is swingably disposed on the chassis and is located in the installation cavity. The first swinging member has a clamping end and an action end located on both sides of a rotation point:

[0025] A clamping wheel, arranged on the first swinging member, wherein after the first swinging member swings, the clamping wheel slides into or out of the clamping groove;

[0026] A fourth elastic member, one end of which is arranged on the chassis and the other end of which is arranged on the first swinging member, is used to provide the

[0027] The force of the snap-in wheel sliding into the snap-in groove;

[0028] An abutment member, abuttingly arranged on the action end;

[0029] A second sliding rod, disposed on the abutment member;

[0030] A second electromagnet is arranged on the chassis and is located in the installation cavity. When the second electromagnet is energized, it drives the second sliding rod to slide in the installation cavity;

[0031] A second elastic member has one end arranged on the abutment member and the other end arranged on the chassis, and the second elastic member is sleeved on the second sliding rod, and the second elastic member is used to provide a force for the second sliding rod to move away from the second electromagnet.

[0032] As a further technical solution,

[0033] A second swinging member is swingably disposed on the chassis, and the second swinging member is abutted against the abutting member, and after the second swinging member swings, it drives the abutting member to slide in the installation cavity;

[0034] A fifth elastic member, one end of which is arranged on the chassis, and the other end is arranged on the second swinging member, for providing a force to move the second swinging member away from the abutment member; one end of the pulling rope is arranged on the second swinging member, and the other end of the pulling rope is a pulling part. After the pulling part is pulled, the pulling rope drives the second swinging member to swing.

[0035] As a further technical solution, it also includes:

[0036] The temperature release component is used to be arranged on the indoor ceiling, and the temperature release component is connected to the pulling rope, and the temperature release component is used to pull the pulling rope.

[0037] As a further technical solution, the temperature release component includes:

[0038] A mounting frame, arranged on the outer wall of the chassis, the mounting frame having a sliding cavity;

[0039] A third sliding rod is slidably disposed in the sliding cavity, and the third sliding rod has a connecting end, and the connecting end is connected to the pulling rope;

[0040] a sixth elastic member, one end of which is arranged on the mounting frame, and the other end of which is arranged on the third sliding rod;

[0041] A tension rope, one end of which is arranged on the third sliding rod;

[0042] The fuse is used to be arranged on the indoor ceiling. The other end of the tension rope is arranged on the fuse. After the fuse is blown, the tension rope is released. The sixth elastic member is used to provide a force for the third sliding rod to move away from the fuse.

[0043] As a further technical solution, the fuse includes:

[0044] A mounting base, used for being installed on an indoor ceiling;

[0045] a sixth elastic member, one end of which is disposed on the mounting seat;

[0046] A fuse, the other end of the sixth elastic member is arranged on one end of the fuse, and the other end of the fuse is connected to the tensioning rope.

[0047] As a further technical solution, the connecting end has a through hole, and the pulling rope is used to pass through the through hole, and further includes:

[0048] A buckle is arranged on the pulling rope, and the buckle is used to abut against the connecting end. After the third sliding rod slides, the connecting end drives the pulling rope to move through the buckle.

[0049] The working principle and beneficial effects of the utility model are:

[0050] In the present utility model, the current control system requires people to control each rolling door one by one, whether manually or electrically. This operation method undoubtedly greatly reduces the overall working efficiency of the door closer, just like a complex piece of music cannot quickly switch to the fast-paced part. Simply put, the existing control mechanism makes it difficult for the rolling doors to operate quickly and efficiently as a whole. The door closer of this scheme includes an opening and closing assembly, which is used to control the opening of the rolling door. The pull rope is slidably arranged on the opening and closing assembly. Several door closers are connected end to end. After pulling a pull ring, the circle formed by several of the pull ropes rotates, and several door closers can be opened and operated synchronously, thereby realizing the simultaneous control of the lifting and lowering of multiple rolling doors, greatly improving the efficiency of the opening and closing of the rolling doors. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0052] Figure 1 This is a schematic diagram of the first structure of the utility model;

[0053] Figure 2 This is a schematic diagram of the second structure of the utility model;

[0054] Figure 3 This is a schematic diagram of the structure of the door closer of the utility model;

[0055] Figure 4 for Figure 3 A local enlarged structural schematic diagram;

[0056] In the figure: 1. door closer, 2. opening and closing assembly, 3. limit end, 4. pulling rope, 5. pull ring, 6. adjusting member, 7. screw, 8. connecting member, 9. chassis, 10. installation cavity, 11. moving block, 12. first sliding rod, 13. first elastic member, 14. first electromagnet, 15. clamping groove, 16. first swinging member, 17. clamping end, 18. action end, 19. clamping wheel, 20. fourth elastic member, 21. abutting member, 22. second sliding rod, 23. second electromagnet, 24. second elastic member, 25. second swinging member, 26. fifth elastic member, 27. temperature release assembly, 28. mounting bracket, 29. third sliding rod, 30. connecting end, 31. tensioning rope, 32. fuse, 33. mounting seat, 34. sixth elastic member, 35. fuse, 36. through hole, 37. buckle, 38. third elastic member. DETAILED DESCRIPTION

[0057] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0058] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0059] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0060] Example

[0061] Reference Figure 1~Figure 4 , is an embodiment of the utility model, and proposes

[0062] A linkage device of a door closer 1 comprises: a plurality of door closers 1, the plurality of door closers 1 are used to control the closing of a plurality of rolling doors, and the plurality of door closers 1 are arranged in a circle; the door closer 1 comprises: an opening and closing assembly 2, the opening and closing assembly 2 is used to be connected to the rolling door; a pulling rope 4 is slidably arranged on the opening and closing assembly 2, and after the pulling rope 4 slides, the opening and closing assembly 2 is driven to move; and further comprises: a plurality of pull rings 5, the pulling ropes 4 of the plurality of door closers 1 are connected end to end to form a circle, and the plurality of pull rings 5 ​​are arranged on the pulling ropes 4 at intervals, after one pull ring 5 is pulled, the plurality of pulling ropes 4 slide synchronously, and after the pulling ropes 4 slide, the plurality of door closers 1 move synchronously.

[0063] In this embodiment, the current control system requires people to control each rolling door one by one, whether manually or electrically. This operation mode undoubtedly greatly reduces the overall working efficiency of the door closer 1. In short, the existing control mechanism makes it difficult for the rolling door to operate quickly and efficiently as a whole. The door closer 1 of this solution includes an opening and closing component 2, which is used to control the opening of the rolling door. The pull rope 4 is slidably arranged on the opening and closing component 2. Several door closers 1 are connected end to end. After pulling a pull ring 5, the circle formed by several pull ropes 4 rotates, and several door closers 1 can be opened and operated synchronously, thereby realizing the simultaneous control of the lifting and lowering of multiple rolling doors, which greatly improves the efficiency of the opening and closing of the rolling door. According to the actual site, several door closers 1 may be arranged in a circle, or in an arc or a straight line, and can be closed synchronously by this device.

[0064] Furthermore, it also includes: a plurality of adjusting members 6 , through which the plurality of pulling ropes 4 are connected end to end, and the adjusting members 6 are used to adjust the tightness of the plurality of pulling ropes 4 .

[0065] In this embodiment, in order to facilitate the adjustment of the tightness of several pulling ropes 4 connected end to end, an adjusting member 6 is arranged between the pulling ropes 4, and the tightness of the pulling ropes 4 is adjusted by the adjusting member 6 to avoid affecting the efficiency of opening the pulling ropes 4 due to the tightness of the pulling ropes 4.

[0066] Furthermore, the adjusting member 6 includes: two screw rods 7, one end of the two screw rods 7 is respectively connected to the two ends of the two pulling ropes 4; the two screw rods 7 are respectively arranged on the connecting member 8 at both ends of the connecting member 8, and after the screw rods 7 are rotated, they are used to adjust the tension or non-tension of the two pulling ropes 4.

[0067] In this embodiment, the adjusting member 6 can be a connecting member 8 and two screws 7. The two screws 7 are respectively arranged on the two pulling ropes 4 and then arranged on the connecting member 8. The tightness of the wire rope can be adjusted by rotating the screws 7. The screws 7 can be "OO", "CC" and "CO" to achieve the above function.

[0068] Furthermore, the opening and closing assembly 2 includes: a chassis 9 having an installation cavity 10; a moving block 11 slidably arranged in the installation cavity 10; a first sliding rod 12 arranged on the moving block 11; a first elastic member 13 having one end arranged on the moving block 11 and the other end arranged on the chassis 9, and the first elastic member 13 is sleeved on the first sliding rod 12, and the first elastic member 13 is used to provide a force for the first sliding rod 12 to slide toward the moving block 11; a first electromagnet 14 is arranged on the chassis 9 and is located in the installation cavity 10, and when the first electromagnet 14 is energized, it drives the moving member to slide in the installation cavity 10, and the first electromagnet 14 uses a 220V wiring power supply.

[0069] In this embodiment, the moving part includes a moving block 11 and a first sliding rod 12 arranged on the moving block 11. One end of the first elastic part 13 is arranged on the chassis 9, and the other end is abutted on the moving block 11. When the first electromagnet 14 is energized, the magnetic force of the first electromagnet 14 overcomes the elastic force of the first elastic part 13 and the gravity of the rolling door itself, allowing the rolling door to fall freely. After the first electromagnet 14 is powered off, the first elastic part 13 provides elastic force to the moving block 11, so that the moving block 11 can be quickly reset.

[0070] Furthermore, the moving block 11 has a snap-in groove 15, and the opening and closing assembly 2 also includes: a first swinging member 16 swingably set on the chassis 9 and located in the installation cavity 10: a snap-in wheel 19 set on the first swinging member 16, and after the first swinging member 16 swings, the snap-in wheel 19 slides into or out of the snap-in groove 15; a fourth elastic member 20 with one end set on the chassis 9 and the other end set on the first swinging member 16, which is used to provide a force for the snap-in wheel 19 to slide into the snap-in groove 15; an abutment member 21, which abuts against the action end 18 of the first swinging member 16; a second sliding rod 22 set on the abutment member 21; a second electromagnet 23 set on the chassis 9 and located in the installation cavity 10, and after the second electromagnet 23 is energized, it drives the second sliding rod 22 to slide in the installation cavity 10. A second elastic member 24 is disposed at one end on the abutment member 21 and at the other end on the chassis 9 . The second elastic member 24 is sleeved on the second sliding rod 22 . The second elastic member 24 is used to provide a force for the second sliding rod 22 to move away from the second electromagnet 23 .

[0071] In this embodiment, the moving block 11 is provided with a snap-in groove 15. This solution can not only open and close the rolling door by energizing and deenergizing the first electromagnet 14, but also energize and deenergize the second electromagnet 23 to drive the second sliding rod 22 to drive the abutment 21 to slide, and the abutment 21 is arranged in abutment with the first swinging member 16, so that the sliding process of the second sliding rod 22 drives the first swinging member 16 to swing, and the snap-in wheel 19 slides into or out of the snap-in groove 15. The fourth elastic member 20 can drive the swinging member to reset after swinging. The door closer 1 can be controlled to close by the first electromagnet 14 and the second electromagnet 23, realizing multi-point control and avoiding the rolling door being unable to be opened or closed due to damage of one control method in an emergency, so that this solution has a longer service life. The second electromagnet 23 uses a 22V mobile power supply. When the first electromagnet 14 fails, 23 can be used to close the rolling door.

[0072] Furthermore, a second swinging member 25 is swingably arranged on the chassis 9, and the second swinging member 25 and the abutment member 21 are abutted against each other. After the second swinging member 25 swings, it drives the abutment member 21 and the sliding rod to slide in the installation cavity 10; a fifth elastic member 26 is arranged at one end on the chassis 9 and at the other end on the second swinging member 25, so as to provide a force to move the second swinging member 25 away from the abutment member 21; one end of the pulling rope 4 is arranged on the second swinging member 25, and the other end of the pulling rope 4 is a pulling part. After the pulling part is pulled, the pulling rope 4 drives the second swinging member 25 to swing.

[0073] In this embodiment, the manual drive component includes a second swinging member 25 swingably set on the chassis 9, and the second swinging member 25 and the abutment member 21 are abutted. When the second swinging member 25 swings, it drives the abutment member 21 and the sliding rod to slide, thereby driving the first swinging member 16 to swing to complete the opening and closing of the rolling door. One end of the fifth elastic member 26 is set on the chassis 9, and the other end is set on the second swinging member 25 to provide a force for the second swinging member 25 to reset. The manual drive component can effectively avoid the problem of the electric drive component being damaged and unable to open the rolling door after an emergency occurs.

[0074] Furthermore, it also includes: a temperature release component 27, which is used to be set on the indoor ceiling, and the temperature release component 27 is connected to the pulling rope 4, and the temperature release component 27 is used to pull the pulling rope 4.

[0075] In this embodiment, the temperature release component 27 can quickly open or close the rolling door after a fire occurs at the rolling door installation site to prevent the fire from further causing casualties to people and objects. When the temperature reaches the required temperature of the temperature release component 27, the temperature release component 27 pulls the pull rope 4 to open the rolling door.

[0076] Furthermore, the temperature release assembly 27 includes: a mounting bracket 28 arranged on the outer wall of the chassis 9, the mounting bracket 28 having a sliding cavity; a third sliding rod 29 slidably arranged in the sliding cavity, and the third sliding rod 29 has a connecting end 30, and the connecting end 30 is connected to the pulling rope 4; a third elastic member 38 with one end arranged on the mounting bracket 28 and the other end arranged on the third sliding rod 29; a tensioning rope 31 with one end arranged on the third sliding rod 29; a fuse 32, which is used to be arranged on the indoor ceiling, and the other end of the tensioning rope 31 is arranged on the fuse 32. After the fuse 32 is blown, the tensioning rope 31 is released, and the third elastic member 38 is used to provide a force to move the third sliding rod 29 away from the fuse 32.

[0077] In this embodiment, the temperature release assembly 27 includes a mounting frame 28, the mounting frame 28 has a sliding cavity, the third sliding rod 29 is slidably set in the sliding cavity, the third sliding rod 29 has a connecting end 30, and the connecting end 30 is connected to the wire rope. When there is no fire, the tensioning rope 31 is in a tensioning state, and the third elastic member 38 is in a compressed state. When a fire occurs, the fuse 32 melts, and the tensioning rope 31 cancels the tensioning effect on the third elastic member 38. Under the action of the third elastic member 38, the third sliding rod 29 is driven, thereby driving the pulling rope 4 to move and completing the opening of the rolling door.

[0078] Furthermore, the fuse 32 includes: a mounting base 33 for being set on the indoor ceiling; a sixth elastic member 34 with one end set on the mounting base 33; the other end of the sixth elastic member 34 is set on the fuse 35 at one end of the fuse piece 35, and the other end of the fuse piece 35 is connected to the tensioning rope 31.

[0079] In this embodiment, the fuse 35 of this scheme is a fusible alloy that can be melted at a relatively low temperature. When the pull rope 4 needs to be manually driven, the sixth elastic member 34 can provide a buffering force to avoid the problem of the fuse 35 breaking due to excessive force applied to the fuse 35 by manual driving.

[0080] Furthermore, the connection end 30 has a through hole 36 , and the pulling rope 4 is used to pass through the through hole 36 . It also includes: a buckle 37 arranged on the pulling rope 4 , and the pulling rope 4 is used to abut against the connection end 30 . The diameter of the through hole 36 is smaller than the width of the buckle 37 .

[0081] In this embodiment, since the pulling rope 4 is susceptible to wear, its wear state needs to be paid attention to and replaced in time. This solution ingeniously designs a perforated structure at the connection end 30, so that the pulling rope 4 can pass through it and form an effective abutment through the precision buckle 37 device, thereby realizing the effective transmission of the bearing force of the pulling rope 4.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A linkage device for a door closer, characterized in that: include: A door closer (1), comprising a plurality of door closers (1), wherein the plurality of door closers (1) are used to control the closing of a plurality of rolling doors; The door closer (1) comprises: An opening and closing assembly (2) having a limit end (3), wherein the limit end (3) is used to open or close a brake member of a fireproof rolling door mechanism; A pulling rope (4) is arranged on the opening and closing component (2), and after the pulling rope (4) moves, it drives the opening and closing component (2) to move; Also includes: The pull ring (5) comprises a plurality of pull ropes (4) of the plurality of door closers (1) which are connected end to end in sequence, and a plurality of pull rings (5) are arranged on the pull ropes (4) at intervals. After one of the pull rings (5) is pulled, the plurality of pull ropes (4) slide synchronously, and after the pull ropes (4) slide, the plurality of door closers (1) act synchronously.

2. A door closer linkage device according to claim 1, characterized in that: Also includes: The adjusting member (6) comprises a plurality of adjusting members, and the plurality of pulling ropes (4) are connected end to end through the adjusting members (6). The adjusting member (6) is used to adjust the tightness of the plurality of pulling ropes (4).

3. A door closer linkage device according to claim 2, characterized in that: The adjusting member (6) comprises: There are two screw rods (7), one end of each of the two screw rods (7) is connected to two ends of two pulling ropes (4) respectively; A connecting member (8), wherein the two screw rods (7) are respectively arranged at two ends of the connecting member (8); after the screw rods (7) are rotated, they are used to adjust the tension or non-tension of the two pulling ropes (4).

4. A door closer linkage device according to claim 1, characterized in that: The opening and closing assembly (2) comprises: A chassis (9) having a mounting cavity (10); A moving block (11) slidably disposed in the installation cavity (10); A first sliding rod (12) is arranged on the moving block (11); a first elastic member (13), one end of which is arranged on the moving block (11) and the other end of which is arranged on the chassis (9); the first elastic member (13) is sleeved on the first sliding rod (12); the first elastic member (13) is used to provide a force for the first sliding rod (12) to slide in a direction toward the moving block (11); The first electromagnet (14) is arranged on the chassis (9) and is located in the installation cavity (10); when the first electromagnet (14) is energized, it drives the moving block (11) to slide in the installation cavity (10).

5. A door closer linkage device according to claim 4, characterized in that: The moving block (11) has a snap-fitting slot (15), and the opening and closing assembly (2) further comprises: A first swinging member (16) is swingably disposed on the chassis (9) and is located in the installation cavity (10), wherein the first swinging member (16) has a clamping end (17) and an action end (18) located on both sides of a rotation point: A clamping wheel (19) is arranged on the first swinging member (16), and after the first swinging member (16) swings, the clamping wheel (19) slides into or out of the clamping groove (15); A fourth elastic member (20) has one end disposed on the chassis (9) and the other end disposed on the first swing member (16), and is used to provide the A force for the snap-in wheel (19) to slide into the snap-in groove (15); an abutment member (21) disposed to abut against the action end (18); A second sliding rod (22) is arranged on the abutment member (21); A second electromagnet (23) is arranged on the chassis (9) and is located in the installation cavity (10); when the second electromagnet (23) is energized, it drives the second sliding rod (22) to slide in the installation cavity (10); A second elastic member (24) has one end disposed on the abutment member (21) and the other end disposed on the chassis (9), and the second elastic member (24) is sleeved on the second sliding rod (22), and the second elastic member (24) is used to provide a force for the second sliding rod (22) to move away from the second electromagnet (23).

6. A door closer linkage device according to claim 5, characterized in that: A second swinging member (25) is swingably disposed on the chassis (9), and the second swinging member (25) and the abutting member (21) are abutted against each other, and after the second swinging member (25) swings, it drives the abutting member (21) to slide in the installation cavity (10); A fifth elastic member (26) has one end arranged on the chassis (9) and the other end arranged on the second swinging member (25), and is used to provide a force for moving the second swinging member (25) away from the abutting member (21); one end of the pulling rope (4) is arranged on the second swinging member (25), and the other end of the pulling rope (4) is a pulling portion. When the pulling portion is pulled, the pulling rope (4) drives the second swinging member (25) to swing.

7. A door closer linkage device according to claim 4, characterized in that: Also includes: The temperature release component (27) is used to be arranged on an indoor suspended ceiling, and the temperature release component (27) is connected to the pulling rope (4), and the temperature release component (27) is used to pull the pulling rope (4).

8. A door closer linkage device according to claim 7, characterized in that: The temperature release component (27) comprises: A mounting frame (28) is arranged on an outer wall of the chassis (9), and the mounting frame (28) has a sliding cavity; A third sliding rod (29) is slidably disposed in the sliding cavity, and the third sliding rod (29) has a connecting end (30), and the connecting end (30) is connected to the pulling rope (4); a third elastic member (38), one end of which is arranged on the mounting frame (28) and the other end of which is arranged on the third sliding rod (29); A tensioning rope (31), one end of which is arranged on the third sliding rod (29); The fuse (32) is used to be arranged on an indoor ceiling, the other end of the tension rope (31) is arranged on the fuse (32), and after the fuse (32) is blown, the tension rope (31) is released, and the third elastic member (38) is used to provide a force for the third sliding rod (29) to move away from the fuse (32).

9. A door closer linkage device according to claim 8, characterized in that: The fuse (32) comprises: A mounting seat (33) for being mounted on an indoor ceiling; a sixth elastic member (34), one end of which is arranged on the mounting seat (33); A fuse (35), the other end of the sixth elastic member (34) is arranged on one end of the fuse (35), and the other end of the fuse (35) is connected to the tension rope (31).

10. The linkage device of a door closer according to claim 8, characterized in that: The connecting end (30) has a through hole (36), and the pulling rope (4) is used to pass through the through hole (36), and further comprises: A buckle (37) is provided on the pulling rope (4), and the buckle (37) is used to abut against the connecting end (30). After the third sliding rod (29) slides, the connecting end (30) drives the pulling rope (4) to move through the buckle (37).

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