Damping mechanism for pulley

Abstract

The utility model discloses a damping mechanism for a pulley. The damping mechanism comprises a pulley assembly; the limiting piece is provided with a first clamping part; the clamping piece comprises a rotating part; the damping device comprises a damping shell and a damper, the rotating part is connected to the damping shell, and the damper extends out of the damping shell; a reset member; when the pulley assembly drives the limiting piece to slide towards the damping device, the first clamping part touches the clamping piece to enable the rotating piece to rotate and avoid, so that the reset piece deforms, the first clamping part continues to push the damper until the damper is completely contracted, at the moment, the clamping piece is separated from the first clamping part, and the reset piece enables the clamping piece to reset. The first clamping part is arranged on the limiting part, so that the first clamping part abuts against the clamping part when sliding away from the damping device, clamping between the clamping part and the limiting part is simple and reliable, extra trigger space does not need to be reserved, and therefore the requirement for the space between the door body and the door frame is lowered, and meanwhile the clamping positioning effect can be achieved when the door body is opened.

Description

Technical Field

[0001] The utility model relates to the technical field related to dampers, and in particular to a damping mechanism for a pulley. Background Art

[0002] In the door and window system, the damper is a common auxiliary device, and its main function is to reduce the impact of the door and window during the closing process, so as to achieve a smooth and silent closing effect. However, the existing damper triggering method generally adopts a quick-actuation triggering mechanism, that is, the quick-actuation is driven by manual or automatic devices to trigger the rotating block of the damper to start working.

[0003] Although this type of quick-trigger damper achieves a damping effect to a certain extent, it also has significant limitations. Specifically, since the quick-trigger requires a certain amount of space to accommodate its movement trajectory, a large trigger space must be reserved between the door body and the door frame. This not only affects the overall aesthetics of the door and window, but may also make it impossible to install or use it normally in some special occasions (such as narrow passages or environments with limited space). Utility Model Content

[0004] In order to overcome at least one defect of the prior art, the utility model provides a damping mechanism for a pulley, which can solve the problem of increasing the gap between the door frame and the door body, and can achieve damping and positioning effects at the same time.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A damping mechanism for a pulley comprises: a pulley assembly; a limiting member, the limiting member is connected to one end of the pulley assembly in a sliding direction, the limiting member is provided with a first clamping portion; a clamping member, the clamping member comprises a rotating portion; a damping device, the damping device comprises a damping housing having a damping cavity and a damper movable in the damping cavity, the rotating portion is rotatably connected to the damping housing, and the damper extends out of the damping housing in the direction of the limiting member; a reset member, one end of the reset member is connected to the clamping member , and the other end is connected to the damping housing, which is used to provide a rotational reset force for the clip; when the pulley assembly drives the limit member to slide toward the damping device, the first clip part touches the clip part to make the clip part rotate to avoid, so that the reset member is deformed, and the first clip part continues to push the damper to be fully contracted. At this time, the clip part is out of contact with the first clip part, and the reset member drives the clip part to reset, so that the first clip part is against the clip part when it slides away from the damping device.

[0007] By adopting the above scheme, the clamping connection between the clamping part and the limit part is not only simple and reliable, but also does not require additional triggering space. The cooperation between the clamping part and the damper makes it possible for the entire damping mechanism to not require additional space to accommodate its movement trajectory when triggered, thereby reducing the demand for space between the door body and the door frame, while being able to achieve the clamping positioning effect of the door body when it is opened.

[0008] Furthermore, the damping housing comprises: a bottom shell having a containing cavity; a cover body, the cover body being disposed on the bottom shell; and a support member, the support member being limitedly located between the bottom shell and the cover body.

[0009] By adopting the above solution, the stability of the damping shell itself can be improved, and the normal operation of the damper inside it can be guaranteed. In addition, the design of the cover body and the bottom shell is conducive to the disassembly and maintenance of the damping shell.

[0010] Furthermore, two clamping arms are symmetrically arranged on the support member, and the clamping arms extend out of the damping shell in the direction of the limiting member, and axial holes are symmetrically arranged on the extended parts so that the clamping member can pass through the axial holes of the clamping arms.

[0011] By adopting the above scheme, the rotation of the clamping part is made more stable through the cooperation between the clamping arm and the rotating part, and the loosening or dislocation caused by vibration or impact is reduced. At the same time, the cooperation design of the clamping arm and the rotating part makes the installation of the clamping part more convenient, reducing the installation difficulty and cost.

[0012] Furthermore, outwardly protruding first clamping columns are arranged on both sides of the clamping member, and second clamping columns are arranged on both sides of the supporting member. A reset member is connected between the first clamping column and the second clamping column on each side.

[0013] By adopting the above solution, the design of the reset member ensures that the clamping member can be reset stably when needed, thereby ensuring the reset and clamping effect of the clamping member.

[0014] Furthermore, the surface of the support member is concavely formed with a damping slideway for avoiding the damper, and the damping slideway and the bottom shell are combined to form a damping cavity.

[0015] By adopting the above solution, the damping performance and working stability of the damper can be further improved.

[0016] Furthermore, a clamping lip plate is arranged at one end of the damping slideway close to the limiting member, and an anti-dropping protrusion for abutting against the clamping lip plate is arranged on the damper.

[0017] By adopting the above solution, when the damper slides to the end of the damping slideway, the snap-on lip plate can abut against the anti-slip protrusion to prevent the damper from falling out, thereby improving the stability and reliability of the damping mechanism and reducing the failure and maintenance costs caused by the damper falling out.

[0018] Furthermore, at least one arc-surface convex rib is provided on a side of the bottom shell facing the damping cavity, and the arc surface of the arc-surface convex rib faces the damper.

[0019] By adopting the above scheme, the arc-shaped convex ribs can guide the damper to slide stably in the damping cavity, reduce the shaking and jitter of the damper, and improve the stability of the entire damping mechanism; at the same time, it can reduce the wear between the damper and the bottom shell, and extend the service life of the damping mechanism and the damper.

[0020] Further, the limiting member includes: a main body plate; a first folding plate, the first folding plate is located on both sides of the main body plate near one end, and pulley assembly holes are provided on the two first folding plates; a second folding plate, the second folding plate is located on both sides of the main body plate near the other end, and the first clamping portion is assembled between the two first folding plates to form a protruding structure that cooperates with the clamping member.

[0021] By adopting the above solution, the limiter can provide stable support and constraint for the pulley, while ensuring that the damper can move smoothly. This design not only ensures the stability and reliability of the damping mechanism, but also improves its service life and performance.

[0022] Furthermore, a plurality of studs are arranged in the accommodating cavity, a surface of the cover body away from the accommodating cavity is provided with a concave assembly groove corresponding to the studs, the support member is provided with an avoidance groove for avoiding the studs, and the assembly groove is provided with a fixing member that passes through the assembly groove and is screwed to the studs.

[0023] By adopting the above solution, the stability of the support member in the accommodating cavity is improved.

[0024] Furthermore, the reset element is a tension spring.

[0025] The above solution helps to achieve the resetting of the clamping part.

[0026] In summary, the pulley damping mechanism provided by the utility model has the following technical effects:

[0027] 1. Due to the use of the clamping method of the clamping piece and the limit piece, the triggering effect of the damper in the horizontal direction is achieved without the need for additional triggering space, thereby reducing the demand for space between the door body and the door frame, making the design of the door and window more compact and improving the overall aesthetics;

[0028] 2. The clamping member and the limiting member can be clamped after the damping effect of the damper is triggered, so as to achieve the positioning effect of the door body, maintain the stability of the door body in the open state, and prevent accidental closing or shaking;

[0029] 3. The reset member provides a reset force for the clamping member, which ensures the reset effect of the clamping member after the clamping member is rotated under force, so that the clamping member can work with the damper at a high frequency. Compared with the impact force of the existing toggle member, it is more reliable and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of a partial explosion structure of an embodiment of the utility model;

[0032] Figure 3 This is a schematic diagram of the partial explosion structure of the damping device of an embodiment of the utility model;

[0033] Figure 4 This is a schematic diagram of the bottom shell structure of an embodiment of the utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the position limiting member in an embodiment of the utility model;

[0035] Figure 6 This is a schematic diagram of the support structure of an embodiment of the utility model;

[0036] Figure 7 The schematic diagram of the pulley disengaging damping state from the cross-sectional perspective of the embodiment of the utility model. The meanings of the reference numerals are as follows: 1. pulley assembly; 2. stopper; 21. main body plate; 22. first folding plate; 221. pulley assembly hole; 23. second folding plate; 231. first clamping part; 3. clamping member; 31. rotating part; 32. second clamping part; 33. first clamping column; 4. damping device; 41. damping shell; 411. bottom shell; 412. cover body; 4121. assembly groove; 413. accommodating cavity; 4131. stud; 415. arc convex rib; 42. damper; 421. anti-slipping protrusion; 5. reset member; 6. support member; 61. avoidance groove; 62. fixing rod; 63. second clamping column; 64. damping slideway; 641. clamping lip plate; 7. clamping arm; 71. shaft hole. DETAILED DESCRIPTION

[0037] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0041] Embodiment 1 of the present utility model is referred to Figure 1-Figure 7 As shown, a damping mechanism for a pulley is disclosed, comprising a pulley assembly 1, a limiting member 2, a clamping member 3, a damping device 4 and a reset member 5. The pulley assembly 1 adopts a hanging pulley in this embodiment 1; the limiting member 2 is connected to one end of the pulley assembly 1 in the sliding direction, the limiting member 2 comprises a main body plate 21, a first folding plate 22 and a second folding plate 23, the first folding plate 22 is located on both sides of the main body plate 21 close to one end, the two first folding plates 22 are provided with pulley assembly holes 221, and one end of the pulley assembly 1 can be fixed between the two first folding plates 22 by inserting fasteners such as bolts; the second folding plate 23 is located on both sides of the main body plate 21 close to the other end, and a first clamping portion 231 is provided between the two first folding plates 22 to form a convex structure matched with the clamping member 3, the first clamping portion 231 can be the surface of an independent abutment member, or it can be an abutment surface formed by splicing two first clamping portions 231, which is not specifically limited in this embodiment 1.

[0042] The damping device 4 includes a damping shell 41 with a damping cavity and a damper 42 movable in the damping cavity, the clamping member 3 is rotatably connected to the damping shell 41, and the damper 42 extends from the damping shell 41 in the direction of the limiting member 2. Specifically, in this embodiment 1, the damping shell 41 includes a bottom shell 411, a cover body 412 and a support member 6, the bottom shell 411 has a accommodating cavity 413, the cover body 412 is covered on the bottom shell 411, and the support member 6 is limited between the bottom shell 411 and the cover body 412, which can improve the stability of the damping shell 41 itself and ensure the normal operation of the damper 42 therein, and the design of the cover body 412 and the bottom shell 411 is conducive to the disassembly and maintenance of the damping shell 41. The surface of the support member 6 is also concave to form a damping slide 64 for avoiding the damper 42 . The damping slide 64 and the bottom shell 411 are combined to form a damping cavity, which can further improve the damping performance and working stability of the damper 42 .

[0043] In order to further improve the assembly stability of the support member 6, in some embodiments, a plurality of studs 4131 are arranged in the accommodating cavity 413, and a concave assembly groove 4121 corresponding to the stud 4131 is arranged on the surface of the cover body 412 away from the accommodating cavity 413, and the support member 6 is provided with an avoidance groove 61 for avoiding the stud 4131, and the assembly groove 4121 is provided with a fixing member that passes through the assembly groove 4121 and is screwed to the stud 4131, thereby improving the stability of the support member 6 in the accommodating cavity 413.

[0044] In the present embodiment 1, in order to facilitate the installation of the clamping member 3, two rows of fixing rods 62 are symmetrically arranged on the support member 6, and each row of the fixing rods 62 is fixed with a clamping arm 7, and the clamping arm 7 extends out of the damping housing 41 in the direction of the limit member 2, and the extended part is symmetrically provided with an axial hole 71, and the clamping member 3 is symmetrically provided with two rotating parts 31, so that the two rotating parts 31 of the clamping member 3 are respectively inserted into the axial holes 71 of the two clamping arms 7, thereby setting, through the cooperation of the clamping arm 7 and the rotating part 31, the rotation of the clamping member 3 is more stable, and the looseness or dislocation caused by vibration or impact is reduced. At the same time, the cooperation design of the clamping arm 7 and the rotating part 31 makes the installation of the clamping member 3 more convenient, and reduces the difficulty and cost of installation. In other embodiments, there can be a structure for rotating and assembling the clamping member 3, and its own rotation and clamping effects can be satisfied at the same time, so the specific assembly structure in other embodiments is not limited.

[0045] One end of the reset member 5 is connected to the clamping member 3, and the other end is connected to the damping shell 41. Specifically, it is used to provide rotational reset force for the clamping member 3. In this embodiment 1, outwardly protruding first clamping columns 33 are provided on both sides of the other end of the clamping member 3, and second clamping columns 63 are provided on both sides of the support member 6. A reset member 5 is connected between the first clamping column 33 and the second clamping column 63 on each side.

[0046] The working principle of this embodiment is as follows: in the absence of external force, the clamping member 3 is in a reset state. In one scenario, the damper 42 is fixed to one end of the door frame, and the pulley assembly 1 is arranged at the edge of the door body and slides along the door frame. Figure 7 As shown, when the door body slides and drives the pulley assembly 1 to move in the direction of the damper 42, the pulley assembly 1 drives the limit member 2 to slide toward the damping device 4, and the protruding first clamping portion 231 touches one end of the clamping portion 3 to rotate it, and the clamping portion 3 rotates to avoid the first clamping portion 231. At this time, the reset member is compressed by the extrusion force, and then the first clamping portion 231 pushes the damper 42 to fully shrink. At this time, the clamping portion 3 is out of contact with the first clamping portion 231, and the reset member 5 drives the clamping portion 3 to rotate and reset, so that a part of the clamping portion 3 can resist the first clamping portion 231 to avoid the first clamping portion 231 from moving away from the damper direction 42. It is set to be able to resist the first clamping portion 231. The part is the second clamping part 32, then after the first clamping part 231 and the second clamping part 32 are abutted against each other, the door body is kept relatively still under the influence of the pulling force of the reset member 5, thereby ensuring that the door body can remain stable and still after opening or closing, and will not be subject to excessive inertial rebound, so as to maintain the clamping positioning effect of the door body after opening and closing the door. Therefore, the force of the first clamping part 231 to rebound inertia away from the damper direction 42 is less than the pulling force of the reset member 5; when the position of the door body needs to be changed again, the pulling force of the door body driven by the person is greater than the pulling force of the reset member 5, so that the first clamping part 231 drives the clamping member 3 to rotate, thereby lengthening the reset member 5, and when the first clamping part 231 is completely separated from the clamping member 3, the reset member 5 contracts again to drive the clamping member to reset. With this arrangement, the clamping connection between the clamping member 3 and the limiting member 2 is not only simple and reliable, but also does not require the reservation of additional triggering space. The cooperation between the clamping member 3 and the damper 42 makes it possible for the entire damping mechanism to not require additional space to accommodate its movement trajectory when triggered, thereby reducing the demand for space between the door body and the door frame, while being able to achieve the clamping positioning effect of the door body when it is opened.

[0047] It should be noted that when the installation position of the reset member 5 changes, the elongation and compression of the reset member 5 can be relatively changed as long as the above functions can be achieved. This embodiment does not make specific changes.

[0048] In some embodiments, in order to improve the stability of the extension and retraction of the damper 42, a snap-in lip plate 641 is provided at one end of the damping slide 64 close to the limit member 2, and an anti-slip protrusion 421 for abutting against the snap-in lip plate 641 is provided on the damper 42. When the damper 42 slides to the end of the damping slide 64, the snap-in lip plate 641 can abut against the anti-slip protrusion 421 to prevent the damper 42 from falling out, thereby improving the stability and reliability of the damping mechanism and reducing the failure and maintenance costs caused by the damper 42 falling out. Optionally, at least one curved rib 415 is further provided on the side of the bottom shell 411 facing the damping chamber, and the curved surface of the curved rib 415 is arranged toward the damper 42, which can guide the damper 42 to slide stably in the damping chamber, reduce the shaking and jitter of the damper 42, and improve the stability of the entire damping mechanism; at the same time, it can reduce the wear between the damper 42 and the bottom shell 411, and extend the service life of the damping mechanism and the damper 42.

[0049] It should be noted that in the present embodiment 1, the reset member 5 is a tension spring, which helps to achieve the reset of the clamping member 3. The tension spring has the functions of being compressed and stretched under force, and can achieve the reset effect after different force states.

[0050] In summary, the pulley damping mechanism provided by the utility model has the following technical effects:

[0051] 1. Due to the clamping mode of the clamping member 3 and the limiting member 2, the triggering effect of the damper 42 in the horizontal direction is achieved without the need for additional triggering space, thereby reducing the demand for space between the door body and the door frame, making the design of the door and window more compact and improving the overall aesthetics;

[0052] 2. The clamping member 3 and the limiting member 2 can be clamped after the damping effect of the damper 42 is triggered, so as to achieve the positioning effect of the door body, maintain the stability of the door body in the open state, and prevent accidental closing or shaking;

[0053] 3. The reset member 5 provides a reset force for the clamping member 3, ensuring the reset effect of the clamping member 3 after the clamping member 3 is rotated under force, so that the clamping member 3 can cooperate with the damper 42 to work at a high frequency. Compared with the impact force of the existing toggle member, it is more reliable and has a longer service life.

[0054] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A damping mechanism for a pulley, characterized in that: include: Pulley assembly (1); A limiting member (2), the limiting member (2) being connected to one end of the pulley assembly (1) in a sliding direction, the limiting member (2) being provided with a first clamping portion (231); A clamping member (3), wherein the clamping member (3) comprises a rotating portion (31); A damping device (4), the damping device (4) comprising a damping shell (41) having a damping chamber and a damper (42) movable in the damping chamber, the rotating portion (31) being rotatably connected to the damping shell (41), and the damper (42) extending out of the damping shell (41) in the direction of the limiting member (2); A reset member (5), one end of the reset member (5) is connected to the clamping member (3), and the other end is connected to the damping housing (41), and is used to provide a rotational reset force for the clamping member (3); When the pulley assembly (1) drives the limiting member (2) to slide toward the damping device (4), the first clamping portion (231) touches the clamping member (3) to cause the clamping member (3) to rotate and avoid, so that the reset member (5) is deformed, and the first clamping portion (231) continues to push the damper (42) to be fully retracted. At this time, the clamping member (3) is out of contact with the first clamping portion (231), and the reset member (5) resets the clamping member (3) so that the first clamping portion (231) abuts against the clamping member (3) when sliding away from the damping device (4).

2. A pulley damping mechanism according to claim 1, characterized in that: The damping housing (41) comprises: A bottom shell (411), wherein the bottom shell (411) has a receiving cavity (413); A cover body (412), the cover body (412) is covered on the bottom shell (411); A support member (6), wherein the support member (6) is located between the bottom shell (411) and the cover body (412).

3. A pulley damping mechanism according to claim 2, characterized in that: Two clamping arms (7) are symmetrically arranged on the support member (6), and the clamping arms (7) extend out of the damping housing (41) in the direction of the limiting member (2), and the extended portion is symmetrically provided with axial holes (71) so that the clamping member (3) can pass through the axial holes (71) of the clamping arms (7).

4. A pulley damping mechanism according to claim 2, characterized in that: The two sides of the clamping member (3) are provided with outwardly protruding first clamping columns (33), the two sides of the support member (6) are provided with second clamping columns (63), and a reset member (5) is connected between the first clamping column (33) and the second clamping column (63) on each side.

5. A pulley damping mechanism according to claim 2, characterized in that: The surface of the support member (6) is also concavely formed with a damping slideway (64) for avoiding the damper (42), and the damping slideway (64) and the bottom shell (411) are combined to form a damping cavity.

6. A pulley damping mechanism according to claim 5, characterized in that: A clamping lip plate (641) is provided at one end of the damping slideway (64) close to the limiting member (2), and an anti-slip protrusion (421) for abutting against the clamping lip plate (641) is provided on the damper (42).

7. A pulley damping mechanism according to claim 5, characterized in that: At least one arc-surface convex rib (415) is further provided on a side of the bottom shell (411) facing the damping chamber, and the arc surface of the arc-surface convex rib (415) faces the damper (42).

8. A pulley damping mechanism according to claim 1, characterized in that: The limiting member (2) comprises: Main body plate (21); A first folding plate (22), the first folding plate (22) being located on both sides of the main body plate (21) near one end, and the two first folding plates (22) are provided with pulley assembly holes (221); The second folding plate (23) is located on both sides of the main plate (21) close to the other end, and the first clamping portion (231) is assembled between the two first folding plates (22) to form a protruding structure that cooperates with the clamping member (3).

9. A pulley damping mechanism according to claim 2, characterized in that: A plurality of studs (4131) are arranged in the accommodating cavity (413); a surface of the cover body (412) away from the accommodating cavity (413) is provided with a concave assembly groove (4121) corresponding to the studs (4131); the support member (6) is provided with an avoidance groove (61) for avoiding the studs (4131); and the assembly groove (4121) is provided with a fixing member that passes through the assembly groove (4121) and is screwed to the studs (4131).

10. A pulley damping mechanism according to claim 1, characterized in that: The reset element (5) is a tension spring.

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