Damping opening and closing device of folding door

Abstract

The utility model relates to the field of folding door opening and closing devices, and particularly discloses a folding door damping opening and closing device which is provided with an adjustable traction mechanism which can slide along a guide sliding rail so as to drive a door leaf to be opened and closed and further comprises a buffering device. The buffering device comprises a damping mechanism, an elastic mechanism and a rotating shifting fork in transmission fit with the elastic mechanism, so that when the door leaf is opened and closed, one end of the adjustable traction mechanism can be in transmission with the rotating shifting fork, then the damping mechanism and the elastic mechanism are driven to buffer the opening and closing speed of the door leaf, and then the opening and closing speed of the door leaf is slowed down.

Description

Technical Field

[0001] The utility model relates to the field of folding door switch devices, and particularly relates to a folding door damping switch device. Background Art

[0002] Due to its special opening method, the folding door occupies a relatively small space and can be almost fully opened, so it is widely used. Currently, when opening and closing the folding door, it is generally manually pushed and pulled or electrically automatically pushed and pulled. Since the electrically automatic push and pull switch is controlled by a system preset program, it can better control the force when opening and closing the door, thereby controlling the opening and closing speed of the door. However, since it is sometimes difficult to control the force of the manually pushed and pulled switch, it is easy to cause the door to open and close too fast, resulting in a collision between the door leaf and the door frame and damage, thus affecting the service life of the door. And sometimes, when the door opens and closes too fast and collides, it will also generate noise, which greatly affects the user experience.

[0003] The technical problem to be solved by this application is to design a folding door damping switch device that can slow down the opening and closing speed of the door leaf. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a folding door damping switch device that can slow down the opening and closing speed of the door leaf.

[0005] The technical solution adopted by the utility model is: a folding door damping switch device, which includes an adjustable traction mechanism connected to the door leaf. One end of the adjustable traction mechanism is provided with a guiding slide rail that is in limit sliding fit with it. It also includes a buffering device for buffering the opening and closing speed of the door leaf. The buffering device includes a damping mechanism, an elastic mechanism that is in transmission cooperation with the damping mechanism, and a rotating fork that is in transmission cooperation with the elastic mechanism. The rotating fork is in transmission cooperation with one end of the adjustable traction mechanism when the door leaf opens and closes.

[0006] In some embodiments, there are two buffering devices that are left - right mirror images of each other. The buffering devices are connected by the guiding slide rail. The buffering device includes a mounting chassis, and a guiding groove is provided on the mounting chassis. The guiding grooves on the two buffering devices are respectively communicated with the two ends of the guiding slide rail.

[0007] In some embodiments, the damping mechanism includes a damping sleeve rotatably connected to the mounting chassis, a damper sleeved in the damping sleeve, and a damping joint provided at one end of the damper. One end of the rotating fork is provided with a connecting column, and the damping joint is rotatably connected to the connecting column.

[0008] In some embodiments, the elastic mechanism includes a rotating fork rotatably connected to the mounting chassis, a guiding pin with one end rotatably connected to the rotating fork, and an elastic member sleeved on the guiding pin. There are two oppositely arranged clamping blocks on the mounting chassis, with oppositely arranged clamping grooves between the clamping blocks. There is a guiding plate connected in a clamping manner between the clamping grooves, and the other end of the guiding pin penetrates through the guiding plate.

[0009] In some embodiments, the other end of the rotating fork is provided with a socket for limit cooperation with one end of the adjustable traction mechanism. The mounting chassis is provided with a connecting shaft, and the rotating fork is rotatably connected to the connecting shaft. The rotating fork is further provided with a connecting convex block, and one end of the guiding pin is provided with a convex platform with a limit concave hole inside. The connecting convex block is in limit rotational cooperation with the limit concave hole, so that the guiding pin and the rotating fork are rotatably connected. The two ends of the elastic member are respectively abutted against the convex platform and the guiding plate to prevent the separation between the guiding pin and the rotating fork.

[0010] In some embodiments, the adjustable traction mechanism includes a bracket and an adjusting plate guidingly connected to the bracket. One end of the bracket is respectively provided with a first rolling bearing, a second rolling bearing, and a third rolling bearing rotatably connected thereto. The rolling surface of the first rolling bearing abuts against the outer side surface of the guiding slide rail, the rolling surface of the second rolling bearing abuts against the two inner side surfaces of the guiding slide rail, and the rolling surface of the third rolling bearing abuts against the bottom surface of the guiding slide rail.

[0011] In some embodiments, the adjusting plate includes an adjusting portion and a connecting portion connected to the adjusting portion. The adjusting portion is respectively provided with an adjusting hole and a connecting groove. The bracket is provided with a limit hole corresponding to the adjusting hole, and a rivet for mutual locking is arranged between the limit hole and the adjusting hole. The bracket is provided with a connecting hole corresponding to the connecting groove, and an adjusting screw for mutual connection is arranged between the connecting groove and the connecting hole. The connecting portion is provided with a limit groove, and the bracket is provided with a limit block, and the limit block and the limit groove are in limit cooperation.

[0012] In some embodiments, one end of the adjusting plate is provided with a quick installation mechanism. The quick installation mechanism includes a clamping column arranged on the adjusting plate and a torsion spring sleeved on the clamping column. The quick installation mechanism further includes a connecting hook block rotatably connected to the adjusting plate. The adjusting plate is provided with a limiting surface, and the two ends of the torsion spring are respectively abutted against the limiting surface and the connecting hook block. The adjusting plate is further provided with a limiting column for restricting the rotation angle of the connecting hook block corresponding to the connecting hook block. The quick installation mechanism further includes a connecting plate installed on the door leaf. One end of the connecting plate is provided with a limiting nail. The adjusting plate is provided with a limiting opening corresponding to the connecting hook block, and the limiting nail is in clamping cooperation with the connecting hook block and the limiting opening respectively.

[0013] In some embodiments, the mounting chassis is further provided with an arc-shaped block. The arc-shaped block is provided with a limit sliding groove inside, and a sliding block in limit sliding cooperation with it is arranged in the limit sliding groove. The sliding block is provided with a locking screw, and the locking screw is in limit locking with the arc-shaped block to limit the opening and closing angle of the door leaf.

[0014] In some embodiments, the elastic mechanism includes an elastic member with one end connected to the rotating fork. A fixing pin is provided on the mounting chassis, and the other end of the elastic member is connected to the fixing pin. A connecting pin is provided on the rotating fork, and one end of the elastic member is connected to the rotating fork by connecting with the connecting pin.

[0015] The utility model has the following technical effects: by providing an adjustable traction mechanism, the adjustable traction mechanism can slide along the guiding slide rail so as to drive the door leaf to open and close. It also includes a buffer device, which includes a damping mechanism, an elastic mechanism and a rotating fork in transmission cooperation with the elastic mechanism, so that when the door leaf opens and closes, one end of the adjustable traction mechanism can transmit power with the rotating fork, and then drive the damping mechanism and the elastic mechanism to buffer the opening and closing speed of the door leaf, thereby slowing down the opening and closing speed of the door leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the folding door damping switch device according to Embodiment 1 of the utility model;

[0017] Figure 2 It is a schematic structural diagram of the buffer device of the folding door damping switch device according to Embodiment 1 of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the adjustable traction mechanism of the folding door damping switch device according to Embodiment 1 of the utility model;

[0019] Figure 4 It is a schematic structural diagram of the adjustable traction mechanism of the folding door damping switch device according to Embodiment 1 of the utility model;

[0020] Figure 5 It is a schematic reverse structural diagram of the adjustable traction mechanism of the folding door damping switch device according to Embodiment 1 of the utility model;

[0021] Figure 6 It is a schematic structural diagram of the bracket of the folding door damping switch device according to Embodiment 1 of the utility model;

[0022] Figure 7 It is a schematic structural diagram of the adjusting plate of the folding door damping switch device according to Embodiment 1 of the utility model;

[0023] Figure 8 It is a schematic structural diagram of the connecting plate of the folding door damping switch device according to Embodiment 1 of the utility model;

[0024] Figure 9 It is a schematic structural diagram of the mounting chassis of the folding door damping switch device according to Embodiment 1 of the utility model;

[0025] Figure 10 It is a schematic structural diagram of the rotating fork of the folding door damping switch device according to Embodiment 1 of the utility model;

[0026] Figure 11 Schematic diagram of the open - door state during the application of the folding - door damping switch device in Embodiment 1 of the present utility model;

[0027] Figure 12 Schematic diagram of the open - door state during the application of the folding - door damping switch device in Embodiment 1 of the present utility model;

[0028] Figure 13 Schematic diagram of the closed - door state during the application of the folding - door damping switch device in Embodiment 1 of the present utility model;

[0029] Figure 14 Schematic diagram of the closed - door state during the application of the folding - door damping switch device in Embodiment 1 of the present utility model;

[0030] Figure 15 Schematic diagram of the transmission structure with the elastic mechanism when the folding - door damping switch device in Embodiment 1 of the present utility model is about to open;

[0031] Figure 16 Schematic diagram of the separation structure from the elastic mechanism when the folding - door damping switch device in Embodiment 1 of the present utility model is about to close;

[0032] Figure 17 Schematic diagram of the buffer device structure of the folding - door damping switch device in Embodiment 2 of the present utility model.

[0033] The reference numerals in the figure correspond to the names as follows: 1, adjustable traction mechanism; 2, guiding slide rail; 3, buffer device; 30, damping mechanism; 31, elastic mechanism; 32, mounting chassis; 320, guiding groove; 300, damping sleeve; 301, damper; 302, damping joint; 310, rotating fork; 311, elastic member; 312, fixing nail; 313, connecting column; 314, socket; 315, edge stop; 316, limiting edge; 317, connecting shaft; 318, connecting nail; 33, arc - shaped block; 330, limiting sliding groove; 331, sliding block; 332, locking screw; 10, bracket; 11, adjusting plate; 100, first rolling bearing; 101, second rolling bearing; 102, third rolling bearing; 12, adjusting part; 13, connecting part; 120, adjusting hole; 121, connecting groove; 103, limiting hole; 104, rivet; 105, connecting hole; 106, adjusting screw; 130, limiting groove; 107, limiting block; 14, quick - installation mechanism; 140, clamping column; 141, torsion spring; 142, connecting hook block; 143, limiting surface; 144, limiting column; 145, connecting plate; 146, limiting nail; 147, limiting opening; 15, limiting shaft; 108, sleeve; 321, guiding nail; 322, clamping block; 323, clamping groove; 324, guide plate; 325, connecting convex block. Detailed implementation manners

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1: Please refer to Figure 1-16 , the present invention provides a technical solution: a folding door damping switch device, which includes an adjustable traction mechanism 1 connected to the door leaf. One end of the adjustable traction mechanism 1 is provided with a guiding slide rail 2 that is in limit sliding fit with it. The guiding slide rail 2 is used to be installed on the top of the cabinet body or door frame. The adjustable traction mechanism 1 includes a bracket 10 and an adjusting plate 11 detachably connected to the bracket 10. One end of the bracket 10 is respectively provided with a first rolling bearing 100, a second rolling bearing 101 and a third rolling bearing 102 rotatably connected to it. The rolling surface of the first rolling bearing 100 abuts against the outer side surface of the guiding slide rail 2, the rolling surface of the second rolling bearing 101 abuts against the two inner side surfaces of the guiding slide rail 2, and the rolling surface of the third rolling bearing 102 abuts against the bottom surface of the guiding slide rail 2. By making the rolling surfaces of the first rolling bearing 100 and the second rolling bearing 101 abut against the outer side surface and the inner side surface of the guiding slide rail 2 respectively, the installation stability between the adjustable traction mechanism 1 and the guiding slide rail 2 can be maintained, and derailment between the adjustable traction mechanism 1 and the guiding slide rail 2 can be avoided. And by making the rolling surface of the third rolling bearing 102 abut against the bottom surface of the guiding slide rail 2, the sliding smoothness between the adjustable traction mechanism 1 and the guiding slide rail 2 can be ensured, so that the adjustable traction mechanism 1 can slide smoothly along the guiding slide rail 2.

[0036] The adjusting plate 11 includes an adjusting portion 12 and a connecting portion 13 connected to the adjusting portion 12. A stepped arrangement is formed between the adjusting portion 12 and the connecting portion 13. An adjusting hole 120 and a connecting groove 121 are respectively provided on the adjusting portion 12. The adjusting hole 120 is a U-shaped hole. The bracket 10 is provided with a limiting hole 103 corresponding to the adjusting hole 120. A rivet 104 for mutual locking is provided between the limiting hole 103 and the adjusting hole 120. The adjusting plate 11 can slide within the length range of the adjusting hole 120 with the rivet 104 as a guide through the adjusting hole 120. The bracket 10 is provided with a connecting hole 105 corresponding to the connecting groove 121. An adjusting screw 106 for mutual connection is provided between the connecting groove 121 and the connecting hole 105 to ensure the connection stability between the adjusting plate 11 and the bracket 10. A limiting groove 130 is provided on the connecting portion 13. The bracket 10 is arranged in an L shape. A limiting block 107 is provided on the bracket 10. The limiting cooperation between the limiting block 107 and the limiting groove 130 enables the overlapping part between the adjusting plate 11 and the bracket 10 to be perfectly overlapped and installed. Therefore, when it is necessary to adjust the tightness between the two doors when the folding door leaves are closed, the adjusting screw 106 can be adjusted, so that the adjusting plate 11 can slide along the rivet 104 within the length range of the adjusting hole 120, thereby changing the length of the entire adjustable traction mechanism 1, and further enabling the adjusted adjustable traction mechanism 1 to be fully closed when the two doors are closed after being installed on the door leaves.

[0037] A quick-loading mechanism 14 is also provided at one end of the adjusting plate 11. The quick-loading mechanism 14 includes a clamping column 140 provided on the connecting portion 13 of the adjusting plate 11 and a torsion spring 141 sleeved on the clamping column 140. The quick-loading mechanism 14 also includes a connecting hook block 142 rotatably connected to the adjusting plate 11. A limiting surface 143 is provided on the connecting portion 13. The limiting surface 143 is a step surface. The two ends of the torsion spring 141 respectively abut against the limiting surface 143 and the connecting hook block 142. Therefore, after the connecting hook block 142 is moved to the side abutting against the torsion spring 141, Since the torsion spring 141 rebounds after being compressed, the connecting hook block 142 can also automatically restore. A limiting column 144 for limiting the rotation angle of the connecting hook block 142 is also provided on the adjusting plate 11 corresponding to the connecting hook block 142. The quick-installing mechanism 14 also includes a connecting plate 145 installed on the door leaf, and a limiting nail 146 is provided at one end of the connecting plate 145. A limiting opening 147 is provided at one end of the connecting portion 13 of the adjusting plate 11 corresponding to the connecting hook block 142. When the connecting hook block 142 is supported by the torsion spring 141 and limited by the limiting column 144, the connecting hook block 142 is automatically restored. A clamping hole is formed between the connecting hook block 142 and the limiting opening 147, and the limiting nail 146 is respectively engaged with the clamping hole formed between the connecting hook block 142 and the limiting opening 147. When it is necessary to quickly install the adjustable traction mechanism 1 between the door, the connecting hook block 142 only needs to be manually moved to separate the connecting hook block 142 from the limiting opening 147, and the limiting nail 146 is embedded in the limiting opening 147, and then the connecting hook block 142 is released. The connecting hook block 142 is automatically restored due to the rebound of the torsion spring 141 after being compressed. Driven to rotate, the connecting hook block 142 and the limiting opening 147 are closed again, so that the limiting nail 146 is locked. By providing a limiting column 144, the rotation angle of the connecting hook block 142 can be limited, so that the connecting hook block 142 can just form a locking hole with the limiting opening 147 to lock the limiting nail 146. The locking hole formed between the connecting hook block 142 and the limiting opening 147 is rotated and matched with the limiting nail 146, so that the adjustable traction mechanism 1 can drive the folding door leaf to open and close when sliding.

[0038] It further includes a buffer device 3 which can buffer and slow down the speed of the door leaf opening and closing, so that the folding door moves slowly when opening and closing, avoiding damage caused by impact. There are two buffer devices 3 arranged in left-right mirror image on the cabinet body or door frame, respectively used to slow down the speed when the door leaf opens or closes. The two buffer devices 3 are connected to each other through a guiding slide rail 2. The buffer device 3 includes an installation chassis 32, and a guiding groove 320 is provided on the installation chassis 32. The guiding groove 320 is in an arc shape. The guiding grooves 320 on the two buffer devices 3 are respectively communicated with both ends of the guiding slide rail 2. The buffer device 3 further includes a damping mechanism 30 arranged on the installation chassis 32, an elastic mechanism 31 in transmission cooperation with the damping mechanism 30, and a rotating fork 310 in transmission cooperation with the elastic mechanism 31. The rotating fork 310 is rotatably connected to the installation chassis 32. The damping mechanism 30 includes a damping sleeve 300 rotatably connected to the installation chassis 32, a damper 301 sleeved inside the damping sleeve 300, and a damping joint 302 arranged at one end of the damper 301. The elastic mechanism 31 includes a guiding nail 321 with one end rotatably connected to the rotating fork 310 and an elastic member 311 sleeved on the guiding nail 321. The elastic member 311 is a spring. Two relatively arranged clamping blocks 322 are provided on the installation chassis 32. A relatively arranged clamping groove 323 is provided between the two clamping blocks 322. A guide plate 324 is provided between the two clamping grooves 323 and is connected in a clamping manner. The other end of the guiding nail 321 penetrates through the guide plate 324. A connecting convex block 325 is further provided on the rotating fork 310. One end of the guiding nail 321 is rotatably connected to the rotating fork 310 by rotatably connecting with the connecting convex block 325. This is because a convex platform is provided at one end of the guiding nail 321, and a limiting concave hole is provided on the surface of the convex platform facing the connecting convex block 325. The connecting convex block 325 and the limiting concave hole are in limiting rotational cooperation, so that the guiding nail 321 and the connecting convex block 325 are rotatably connected, and further the guiding nail 321 and the rotating fork 321 are rotatably connected. Since the elastic member 311 is sleeved on the guiding nail 321 and the guiding nail 321 penetrates through the guide plate 324, both ends of the elastic member 311 are respectively abutted against the convex platform and the guide plate 324, and the distance between the convex platform and the guide plate 324 makes the elastic member 311 in a compressed state. Therefore, both ends of the elastic member 311 abut between the convex platform and the guide plate 324, which can prevent the guiding nail 321 from separating from the rotating fork 310. A connecting column 313 is provided at one end of the rotating fork 310. The damping joint 302 is rotatably connected to the connecting column 313. A socket 314 is provided at the other end of the rotating fork 310. A connecting shaft 317 is provided on the installation chassis 32. The middle position of the rotating fork 310 is rotatably connected to the connecting shaft 317, and the opening directions of the sockets 314 on the left and right buffer devices 3 are relatively arranged. The first rolling bearing 100 and the second rolling bearing 101 on the adjustable traction mechanism 1 are both connected to the bracket 10 through a sleeve 108. When the folding door is in a fully closed state,At this time, the sleeve 108 connected to the first rolling bearing 100 on the adjustable traction mechanism 1 is just located within the socket 314 on the buffer device 3 on the side in the door closing direction. There is a limit fit between the sleeve 108 and the socket 314. The two sides of the socket 314 are respectively a retaining edge 315 and a limiting edge 316. The length of the retaining edge 315 is longer than that of the limiting edge 316, enabling the sleeve 108 to slide into the socket 314 and be limited therewith, such that the transmission fork 310 is in transmission cooperation with one end of the adjustable traction mechanism 1 when the door leaf is opened and closed. When it is necessary to open the door, at this time, push the folding door, so that the adjustable traction mechanism 1 slides along the guide groove 320 and slides to the guide rail 2. There is also a limit shaft 15 provided on the mounting chassis 32. When the adjustable traction mechanism 1 slides along the guide groove 320 and continuously drives the rotating fork 310 to rotate, the limit shaft 15 can limit the maximum angle of rotation of the rotating fork 310 driven by the sleeve 108. When the limit shaft 15 abuts against the rotating fork 310, at this time, as the folding door is opened, the adjustable traction mechanism 1 continues to slide forward. Therefore, at this time, the sleeve 108 on the adjustable traction mechanism 1 is separated from the socket 314. And since one end of the rotating fork 310 is rotatably connected to the damping joint 302, when the rotating fork 310 abuts against the limit shaft 15 and is separated from the sleeve 108, at this time, both ends of the rotating fork 310 are respectively subjected to the pulling force of the elastic member 311 and the damping force of the damping mechanism 30, so as to maintain a balanced prohibited state. The rotating fork 310 on the buffer device 3 on the other side is in the same state as this side's rotating fork 310. Therefore, when the adjustable traction mechanism 1 continues to slide along the guide rail 2 to the guide groove 320 on the other side, at this time, the sleeve 108 connected to the first rolling bearing 100 is limited with the socket 314 on the rotating fork 310 on the side where the door is opened. Due to the pushing of the adjustable traction mechanism 1 and the restoring elastic force of the elastic member 311 on this side's rotating fork 310, the rotating fork 310 starts to rotate in the direction of compression of the elastic member 311. And since the other end of the rotating fork 310 is in transmission cooperation with the damping mechanism 30, the damping mechanism 30 can buffer the rotation speed of the rotating fork 310, thereby equivalently slowing down the sliding speed of the adjustable traction mechanism 1 in the guide groove 320, and further equivalently slowing down the opening speed of the door. In order to control the directional opening or closing of the folding door, there is also an arc-shaped block 33 provided on the mounting chassis 32. A limit sliding groove 330 is provided inside the arc-shaped block 33. The limit sliding groove 330 is set to be proportionally reduced with the guide groove 320. A sliding block 331 that is in limit sliding fit therewith is provided in the limit sliding groove 330. A locking screw 332 is provided on the sliding block 331. The locking screw 332 can be locked with the arc-shaped block 33 to block the adjustable traction mechanism 1, thereby restricting the opening and closing angle of the door. When the adjustable traction mechanism 1 continuously slides in the guide groove 320, at this time, the locking screw 332 can intercept the sliding adjustable traction mechanism 1, so that the door opens and closes directionally.It can also loosen the locking screw 332, so that the sliding block 331 slides in the limit chute 330, thereby changing the locking position between the locking screw 332 and the arc-shaped block 33, and thus changing the opening and closing angle of the door. When the door needs to be closed, the folding door is pushed in the reverse direction at this time, so that the adjustable traction mechanism 1 on the folding door in the open state slides reversely along the guide chute 320. At this time, the rotating fork 310 is blocked by the limit shaft 15 and separated from the sleeve 108. The adjustable traction mechanism 1 continues to slide along the guide rail 2 to the guide chute 320 on the other side, and is limited with the socket 314 on the rotating fork 310 on this side, thereby driving the rotating fork 310 on this side to rotate back until it is stopped by the locking screw 332 on the buffer device 3 on this side, thus completing the closing process of the folding door.

[0039] Embodiment 2: Please refer to Figure 17 , the present utility model provides another technical solution: a folding door damping switch device. This embodiment adopts any one of the folding door damping switch devices in the above Embodiment 1. The elastic mechanism 31 includes a rotating fork 310 rotatably connected to the mounting chassis 32 and an elastic member 311 with one end connected to the rotating fork 310. The elastic member 311 is a spring. A fixing nail 312 is also provided on the mounting chassis 32. The other end of the elastic member 311 is connected to the fixing nail 312. A connecting nail 318 is also provided at the end of the rotating fork 310 close to the socket 314. One end of the elastic member 311 is connected to the rotating fork 310 by connecting with the connecting nail 318. By connecting the two ends of the elastic member 311 to the fixing nail 312 on the mounting chassis 32 and the connecting nail 318 on the rotating fork 310 respectively, when the rotating fork 310 rotates, it can also drive the elastic member 311 to stretch and contract, thereby assisting the rotating fork 310 to maintain balance or pulling the rotating fork 310 to drive the folding door to open and close slowly.

[0040] The beneficial effects of the present utility model: By providing the adjustable traction mechanism 1, the adjustable traction mechanism 1 can slide along the guide rail 2 to drive the door leaf to open and close. It also includes a buffer device 3. The buffer device 3 includes a damping mechanism 30, an elastic mechanism 31, and a rotating fork 310 in transmission cooperation with the elastic mechanism 31, so that one end of the adjustable traction mechanism 1 can transmit power with the rotating fork 310 when the door leaf opens and closes, and then drive the damping mechanism 30 and the elastic mechanism 31 to buffer the speed of the door leaf opening and closing, thereby slowing down the speed of the door leaf opening and closing.

[0041] Finally, it should be noted that the above are only preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A folding door damping switch device, characterized in that: It includes an adjustable traction mechanism connected to the door leaf, one end of the adjustable traction mechanism is provided with a guide slide rail which is limitedly slidably matched with the door leaf, and also includes a buffer device for buffering the opening and closing speed of the door leaf, the buffer device includes a damping mechanism, an elastic mechanism which is transmission-matched with the damping mechanism, and a rotating fork which is transmission-matched with the elastic mechanism, and the rotating fork is transmission-matched with one end of the adjustable traction mechanism when the door leaf is opened and closed.

2. The folding door damping switch device according to claim 1, characterized in that: The buffer device is provided with two mirror images on the left and right, and the buffer devices are connected by a guide rail. The buffer device includes a mounting chassis, and the mounting chassis is provided with a guide groove. The guide grooves on the two buffer devices are respectively connected to the two ends of the guide rail.

3. The folding door damping switch device according to claim 2, characterized in that: The damping mechanism comprises a damping sleeve rotatably connected to the mounting chassis, a damper sleeved in the damping sleeve and a damping joint arranged at one end of the damper. A connecting column is arranged at one end of the rotating fork, and the damping joint is rotatably connected to the connecting column.

4. The folding door damping switch device according to claim 2, characterized in that: The elastic mechanism includes a guide pin with one end rotatably connected to the rotating fork and an elastic member sleeved on the guide pin. The mounting chassis is provided with two oppositely arranged clamping blocks, oppositely arranged clamping grooves are provided between the clamping blocks, and guide plates that are mutually clamped and connected are provided between the clamping grooves. The other end of the guide pin passes through the guide plate.

5. The folding door damping switch device according to claim 4, characterized in that: The other end of the rotating fork is provided with a socket, and the socket is used to cooperate with one end of the adjustable traction mechanism. The mounting chassis is provided with a connecting shaft, and the rotating fork is rotatably connected to the connecting shaft. The rotating fork is also provided with a connecting protrusion, and one end of the guide nail is provided with a boss, and a limiting recessed hole is provided in the boss. The connecting protrusion and the limiting recessed hole are limited and rotatably cooperated so that the guide nail and the rotating fork are rotatably connected, and the two ends of the elastic member are respectively abutted against the boss and the guide plate to avoid separation between the guide nail and the rotating fork.

6. The folding door damping switch device according to claim 1, characterized in that: The adjustable traction mechanism includes a bracket and an adjustment plate connected to the bracket guide. One end of the bracket is respectively provided with a first rolling bearing, a second rolling bearing and a third rolling bearing which are rotatably connected thereto. The rolling surface of the first rolling bearing abuts against the outer side surface of the guide slide rail, the rolling surface of the second rolling bearing abuts against the two inner side surfaces of the guide slide rail, and the rolling surface of the third rolling bearing abuts against the bottom surface of the guide slide rail.

7. The folding door damping switch device according to claim 6, characterized in that: The adjustment plate includes an adjustment part and a connecting part interconnected with the adjustment part, the adjustment part is respectively provided with an adjustment hole and a connecting groove, the bracket is provided with a limiting hole corresponding to the adjustment hole, a mutually locking rivet is provided between the limiting hole and the adjustment hole, the bracket is provided with a connecting hole corresponding to the connecting groove, an adjusting screw connected to each other is provided between the connecting groove and the connecting hole, the connecting part is provided with a limiting groove, the bracket is provided with a limiting block, and the limiting block and the limiting groove are limitedly matched.

8. The folding door damping switch device according to claim 6, characterized in that: A quick-loading mechanism is provided at one end of the adjusting plate, and the quick-loading mechanism includes a clamping column arranged on the adjusting plate and a torsion spring sleeved on the clamping column. The quick-loading mechanism also includes a connecting hook block rotatably connected to the adjusting plate. A limiting surface is provided on the adjusting plate, and the two ends of the torsion spring are respectively abutted against the limiting surface and the connecting hook block. A limiting column for limiting the rotation angle of the connecting hook block is also provided on the adjusting plate corresponding to the connecting hook block. The quick-loading mechanism also includes a connecting plate installed on the door leaf, a limiting nail is provided at one end of the connecting plate, and a limiting opening is provided on the adjusting plate corresponding to the connecting hook block, and the limiting nails are respectively engaged with the connecting hook block and the limiting opening.

9. The folding door damping switch device according to claim 2, characterized in that: An arc block is also provided on the mounting chassis, a limiting slide groove is provided in the arc block, a sliding block that cooperates with the limiting slide groove for limiting sliding is provided in the limiting slide groove, a locking screw is provided on the sliding block, and the locking screw and the arc block are locked to limit the opening and closing angle of the door leaf.

10. The folding door damping switch device according to claim 4, characterized in that: The elastic mechanism includes an elastic member connected to a rotating fork at one end, a fixing nail is provided on the mounting chassis, the other end of the elastic member is connected to the fixing nail, the rotating fork is provided with a connecting nail, and one end of the elastic member is connected to the rotating fork by connecting to the connecting nail.

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