A self-adaptive pulley set of a linkage door

Abstract

The application discloses a kind of linkage door self-adapting pulley groups, comprising: base;Sliding piece, slidingly disposed on base;Transmission wheel, is set on sliding piece;Limiting component, is set to base, for providing the limiting of sliding piece, and adjustable in the position of sliding piece sliding direction, to change the limiting position of sliding piece, or drive sliding piece to move;Through limiting component to sliding piece follow adjustment, sliding piece is limited by limiting piece in any position, so that transmission wheel on sliding piece does not produce wobble when working, to avoid belt drop, wobble noise and sliding piece wear etc.Problems;In addition, limiting component can also be used to drive the movement of sliding piece, realize the driving, limiting dual action of sliding piece, improve the functional integration of component, simplify the overall structure of pulley group.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of door and window equipment, in particular to a self-adaptive pulley set for a linkage door. BACKGROUND

[0002] In order to enable the pulley of the linkage door to tighten the belt even if the belt is deformed, loosened or aged, the pulley is acted on by a spring on a transmission wheel, and the transmission wheel is slidably arranged on the base by a sliding member, and the spring provides the transmission wheel with a force for supporting the belt.

[0003] In actual use, the transmission wheel is prone to shaking in the working process, thereby driving the belt to shake, which may cause the belt to fall off, generate shaking noise and cause the sliding member to wear, and the like. SUMMARY

[0004] In order to overcome at least one of the defects of the prior art, the present application provides a self-adaptive pulley set for a linkage door.

[0005] The technical scheme adopted by the present application to solve the problems is as follows:

[0006] a base;

[0007] a sliding member slidably arranged on the base;

[0008] a transmission wheel arranged on the sliding member;

[0009] a limiting assembly arranged on the base and used for limiting the sliding member, and the limiting assembly can be adjusted in the sliding direction of the sliding member to change the limiting position of the sliding member or drive the sliding member to move.

[0010] Further, the limiting assembly comprises a screw rod and a threaded sleeve.

[0011] The threaded sleeve is screwed on the screw rod, and the threaded sleeve limits the sliding member, and rotating the threaded sleeve drives the threaded sleeve to move on the screw rod to change the limiting position of the sliding member or drive the sliding member to move.

[0012] Further, the sliding member comprises a mounting seat and a limiting block.

[0013] The mounting seat and the limiting block are clamped to form a sliding guide groove therebetween, and the sliding guide groove is slidably clamped on the base.

[0014] Further, the mounting seat is provided with a limiting hole.

[0015] The threaded sleeve is provided with a limiting protrusion, and the limiting protrusion is inserted into the limiting hole.

[0016] Furthermore, it also includes wheel fixing components;

[0017] The wheel fixing component is disposed on the mounting base, one end of the transmission wheel is rotatably connected to the mounting base, and the other end is rotatably connected to the wheel fixing component.

[0018] Furthermore, a connecting hole is provided in the middle of the threaded sleeve;

[0019] The screw is screwed into the connecting hole;

[0020] And / or the end of the screw that passes through the threaded sleeve is provided with a first internal hexagon countersunk hole.

[0021] Furthermore, the connecting hole is divided into a threaded section and a second internal hexagon countersunk section in sequence along the direction in which the screw passes through the threaded sleeve.

[0022] Furthermore, it also includes tightening components;

[0023] The adjusting component is connected to the base and the sliding component respectively, so as to adjust the relative position of the transmission wheel in the sliding direction of the sliding component.

[0024] Furthermore, the adjusting element is a spring or a spring sheet.

[0025] Furthermore, the screw is provided with an annular groove;

[0026] The screw is rotatably mounted on the base via the annular groove.

[0027] Furthermore, it also includes an upper pulley section, said upper pulley section comprising:

[0028] Upper pulley;

[0029] A sliding base plate is slidably mounted on the base and connected to the screw, and an upper pulley is rotatably mounted above the sliding base plate;

[0030] The drive unit is disposed between the upper pulley and the sliding base plate, and the screw drives the sliding base plate to slide back and forth so that the drive unit acts on the upper pulley.

[0031] In summary, the adaptive pulley assembly for a linkage door provided by this invention has the following technical advantages:

[0032] By adjusting the sliding component through the limiting component, the sliding component is limited at any position, so that the transmission wheel on the sliding component will not wobble when working, thereby avoiding problems such as belt slippage, shaking noise and wear of the sliding component; in addition, the limiting component can also be used to drive the movement of the sliding component, realizing the dual function of driving and limiting the sliding component, improving the functional integration of the components and simplifying the overall structure of the pulley assembly. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a sectional view of the present application;

[0034] Figure 2 is an exploded view of the present application;

[0035] Figure 3 is an assembly schematic view of the present application.

[0036] Wherein, the reference signs have the following meanings:

[0037] 1, base; 2, sliding piece; 21, mounting seat; 211, limiting hole; 22, limiting block; 3, transmission wheel; 4, limiting assembly; 41, screw rod; 411, first internal hexagonal counterbore; 42, threaded sleeve; 421, limiting protrusion; 422, connecting hole; 4221, second internal hexagonal counterbore; 5, tightening piece; 6, wheel body fixing piece; 7, pulley part; 71, upper pulley; 72, sliding bottom plate; 73, rotating plate; 74, driving part; 8, sliding groove; 9, plug-in plate; 10, connecting groove; 11, ring groove. DETAILED DESCRIPTION

[0038] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0039] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the specification of the present application herein is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0041] Example one

[0042] Referring to Figure 1 , Figure 2 and Figure 3 , the present application discloses a kind of linkage door self-adapting pulley group, which includes:

[0043] Base 1, base 1 is hollow structure, to form the inner cavity same to install other components.

[0044] The sliding member 2 comprises a mounting base 21 and a limiting block 22, and one end of the top of the base 1 is provided with a sliding groove 8 for sliding the sliding member 2. In the embodiment, the mounting base 21 is in L-shaped structure, and the L-shaped mounting base 21 is buckled at one end of the base 1. Specifically, one end of the mounting base 21 is arranged above the sliding groove 8, and the other end is arranged at one end of the base 1 close to the sliding groove 8, and the limiting block 22 is arranged below the sliding groove 8. The mounting base 21 and the limiting block 22 are clamped up and down by screws, and a sliding guide groove is formed between them, the height of the sliding guide groove is slightly greater than the thickness of the side walls of the sliding groove 8 of the base 1. It should be noted that the bottom of the inner cavity of the base 1 and the end close to the mounting base 21 are communicated with the outside, that is, the end of the base 1 close to the mounting base 21 is the open end.

[0045] The transmission wheel 3 is rotationally arranged at the top of the mounting base 21.

[0046] Further, in order to strengthen the stability of the installation of the transmission wheel 3, a wheel body fixing member 6 is further included. Specifically, the wheel body fixing member 6 is in Z-shaped structure, one end of the Z-shaped wheel body fixing member 6 is connected to the top of the mounting base 21, and the other end is arranged at the top of the transmission wheel 3. Specifically, the bottom end of the rotating shaft of the transmission wheel 3 is rotationally connected to the mounting base 21, and the top end of the rotating shaft is rotationally connected to the end of the wheel body fixing member 6 at the top of the transmission wheel 3. In this way, the upper and lower ends of the rotating shaft of the transmission wheel 3 are both supported, thereby strengthening the stability of the installation of the transmission wheel 3.

[0047] The limiting assembly 4 comprises a screw rod 41 and a threaded sleeve 42. Specifically, the screw rod 41 is arranged in the inner cavity of the base 1, and the threaded sleeve 42 is screwed on the screw rod 41.

[0048] Embodiment two

[0049] Reference Figure 1 The linkage door self-adapting pulley assembly of embodiment one is applied to a linkage door. The linkage door comprises a door leaf, two linkage door self-adapting pulley assemblies are arranged at both ends of the top of the door leaf, and a lower pulley is arranged at the bottom of the door leaf. Specifically, the bases 1 of the two linkage door self-adapting pulley assemblies are connected with the door leaf respectively, and the transmission wheels 3 of the two linkage door self-adapting pulley assemblies are arranged away from each other. At this time, the threaded sleeve 42 is rotated to move towards one end of the mounting base 21 at the end of the base 1, and finally the threaded sleeve 42 abuts against the side wall of the end of the mounting base 21. The outer periphery of the two transmission wheels 3 is provided with a belt.

[0050] After long time working, if the belt appears slack, at this time there is gap between the belt and the transmission wheel 3, the way to adjust the two transmission wheels 3 to tighten the belt again has two: one, first move the mounting seat 21 to the outer end of the base 1 to make the transmission wheel 3 again with the belt tight fit, then the corresponding rotating threaded sleeve 42 do the same direction movement with the corresponding mounting seat 21, finally the threaded sleeve 42 again abuts on the mounting seat 21, to limit the mounting seat 21; the second, directly rotating the threaded sleeve 42 to make the threaded sleeve 42 push the mounting seat 21 to the outer end of the base 1 movement, finally the transmission wheel 3 again with the belt tight fit, that is, the belt is again tightened.

[0051] In particular, as can be seen from the above, since the number of linkage door self-adaptive pulley groups is two, when the belt is slack, at least one of the transmission wheels 3 of the linkage door self-adaptive pulley group can be adjusted, in the embodiment, preferably, the transmission wheels 3 of the two linkage door self-adaptive pulley groups are adjusted at the same time, to ensure that the position of the belt does not deviate, to prevent the occurrence of transmission problems.

[0052] Embodiment three

[0053] Referring to Figure 1 On the basis of embodiment two, if the threaded sleeve 42 only abuts on the side wall of the mounting seat 21, it cannot reliably limit the mounting seat 21, therefore further, a limiting hole 211 is arranged on the side wall of one end of the mounting seat 21 located at the end of the base 1, and the end of the threaded sleeve 42 close to the opening of the inner cavity is provided with a limiting protrusion 421 matched with the limiting hole 211, according to embodiment two, the limiting protrusion 421 is inserted into the limiting hole 211 to limit and fix the mounting seat 21, effectively preventing the transmission wheel 3 from shaking during use.

[0054] In other embodiments, the screw rod 41 can be replaced by a telescopic rod, the telescopic rod is inserted into the limiting hole 211 of the mounting seat 21 through telescopic movement, which also has the effect of limiting the mounting seat 21 and stabilizing the transmission wheel 3.

[0055] Embodiment four

[0056] On the basis of embodiment three, referring to Figure 1 Since the limiting assembly 4 is located inside the base 1, in order to adjust the threaded sleeve 42 to the limiting hole 211, preferably, a connecting hole 422 is arranged in the middle of the threaded sleeve 42, the connecting hole 422 simultaneously penetrates the limiting protrusion 421; one end of the screw rod 41 penetrates the threaded sleeve 42 and is screwed in the connecting hole 422, specifically, the connecting hole 422 is sequentially divided into a threaded section (that is, the end of the connecting hole 422 away from the limiting protrusion 421 is provided with an internal thread) and a second internal hexagonal counterbore 4221 section along the direction in which the screw rod 41 penetrates the threaded sleeve 42, and the internal thread is screwed with the screw rod 41.

[0057] As known from the above, if the threaded sleeve 42 needs to be rotated, a hexagonal wrench is inserted through the base 1 and the limiting protrusion 421 and finally inserted into the second inner hexagonal counterbore 4221, and the threaded sleeve 42 is rotated by rotating the hexagonal wrench, thereby solving the problem of inconvenient adjustment of the threaded sleeve 42 due to the small internal space of the base 1.

[0058] Embodiment Five

[0059] On the basis of Embodiments One to Four, in order to improve the self-adaptive adjustment capability of the transmission wheel 3, the self-adaptive pulley set further comprises a tightening member 5 for automatically adjusting the position of the transmission wheel 3 when the stress of the transmission wheel 3 changes. Preferably, the tightening member 5 is a spring, which is located on the inner side of the transmission wheel 3, one end of the spring is connected to a wheel body fixing member 6, and the other end is connected to the base 1. In order to facilitate the installation and replacement of the spring, the spring in this embodiment is a variable-diameter spring, specifically a variable-diameter spring with small ends and a large middle part. Therefore, the top of the base 1 located on the inner side of the transmission wheel 3 is provided with a plug-in plate for plug-in of the variable-diameter spring, and the wheel body fixing member 6 and the plug-in plate 9 are respectively provided with plug-in holes, and the two ends of the variable-diameter spring are respectively plugged into the two plug-in holes.

[0060] Referring to Embodiment Two, in the initial state, the tightening member 5 is in a compressed state. When the belt is loose and there is a gap between the belt and the transmission wheel 3, the tightening member 5 is elongated to push the mounting seat 21 towards the outer end of the base 1, so that the transmission wheel 3 tightens the belt again. This tightening member 5 plays an instant adjustment function when the belt is loose.

[0061] Due to the movement of the mounting seat 21, the limiting protrusion 421 on the threaded sleeve 42 will be disengaged from the limiting hole 211, and then the threaded sleeve 42 is rotated by the operation of Embodiment Three to make the limiting protrusion 421 plugged into the limiting hole 211 again. The threaded sleeve 42 limits the mounting seat 21, preventing the transmission wheel from shaking during use.

[0062] The number of self-adaptive pulley sets is two, and the above steps are performed for the two transmission wheels 3, which will not be described separately here.

[0063] In addition, the spring can also be a spring sheet or other elastic element.

[0064] Embodiment Six

[0065] In addition, referring to Figure 1On the basis of embodiment one, embodiment two, embodiment three and embodiment four, the linkage door self-adapting pulley set further comprises an upper pulley part 7, the upper pulley part 7 comprises a sliding bottom plate 72 and a rotating plate 73, the sliding bottom plate 72 is slidingly arranged on the base 1 at an end away from the transmission wheel 3, and the rotating plate 73 is rotationally arranged on the base 1 and above the sliding bottom plate 72, and two ends of the top of the rotating plate 73 are rotationally arranged with upper pulleys 71 respectively.

[0066] When the sliding bottom plate 72 reciprocally slides, the sliding bottom plate 72 drives the rotating plate 73 to rotate, so that the middle line of the two ends of the rotating plate 73 is parallel or intersected with the sliding direction of the sliding bottom plate 72; it can be known that there is a driving part 74 between the sliding bottom plate 72 and the rotating plate 73, and specifically, the driving part 74 comprises:

[0067] a guide column and a guide hole, in the embodiment, the guide column is arranged on the bottom surface of the rotating plate 73, and the guide hole is arranged on the sliding bottom plate 72, and the guide column is inserted into the guide hole.

[0068] Specifically, the guide hole is located on the middle line of the sliding bottom plate 72, and the guide hole is arranged at an angle with the sliding direction of the sliding bottom plate 72, and the acute angle between the guide hole and the sliding direction of the sliding bottom plate 72 is 45°-60°.

[0069] In other embodiments, the guide column is arranged on the top surface of the sliding bottom plate 72, and the guide hole is arranged on the rotating plate 73.

[0070] According to the above, the sliding of the sliding bottom plate 72 needs external driving, in order to improve the simplicity of the overall structure of the linkage door self-adapting pulley set, the sliding bottom plate 72 is threadedly driven by a screw rod 41, specifically, the middle part of the screw rod 41 is provided with a ring groove 11 for rotational connection, the ring groove 11 is rotationally arranged in the middle part of the inner cavity of the base 1, a threaded sleeve 42 is screwed on one end of the screw rod 41 close to the transmission wheel 3, and the other end of the screw rod 41 is screwed with the sliding bottom plate 72.

[0071] Specifically, the middle part of the screw rod 41 is provided with two annular protrusions, the middle part of the two annular protrusions forms the ring groove 11, the screw rod 41 is rotationally connected to the base 1 through the ring groove 11, the annular protrusions axially limit the screw rod 41, so that the screw rod 41 only rotates without displacement, and at the same time, the threaded sleeve 42 also does not displace when the screw rod 41 is operated.

[0072] The specific structure of the sliding bottom plate 72 screwed with the screw rod 41 is that the top of the base 1 is provided with a connecting groove 10, the sliding bottom plate 72 is provided with a connecting plate, the connecting plate passes through the connecting groove 10 to extend into the inner cavity of the base 1, and one end of the screw rod 41 away from the transmission wheel 3 is screwed with the connecting plate.

[0073] In this embodiment, the upper pulley 7 is used as a sliding guide for the top of the door leaf, so the adaptive pulley assembly of the linkage door will be installed in the upper track with a lower mounting port.

[0074] It should be noted that, in the initial state, the center lines of both ends of the rotating plate 73 of the linkage door adaptive pulley assembly are parallel to the sliding direction of the sliding base plate 72 (that is, the projections of the two upper pulleys 71 in the vertical direction are in the area of ​​the sliding base plate 72), and the guide post is located at the center of the guide hole.

[0075] The installation process of the adaptive pulley assembly of the linkage door and the upper track is as follows: First, the adaptive pulley assembly of the linkage door is set on the top of the door leaf. By determining the distance between the two inner side walls of the upper track, the rotating screw 41 is rotated, causing the sliding base plate 72 to slide away from the transmission wheel 3. The side wall of the guide hole abuts against the guide post, thereby pushing the rotating plate 73 to rotate. At this time, the two upper pulleys 71 protrude from both sides of the sliding base plate 72 in the vertical projection direction. Finally, the maximum distance between the two upper pulleys 71 is slightly less than the distance between the two inner side walls.

[0076] Next, the belt is wound around the two transmission wheels 3 of the two linkage door adaptive belt pulley sets; at this time, the threaded sleeve 42 is rotated so that the limiting protrusion 421 is inserted into the limiting hole 211.

[0077] Finally, the adaptive pulley assembly of the linkage door is installed into the upper track from bottom to top. At this time, the upper pulley 71 makes rolling contact with the two inner side walls of the upper track respectively.

[0078] Example 7

[0079] Based on Embodiment Six and inspired by Embodiment Four, and also to facilitate the rotation of the screw 41, see [reference needed]. Figure 1 and Figure 2 Preferably, the end of the screw 41 that is inserted into the threaded sleeve 42 is provided with a first internal hexagon countersunk hole 411.

[0080] As described above, when it is necessary to rotate the screw 41 to adjust the position of the threaded sleeve 42, the hex wrench passes through the end of the base 1, then inserts into the second internal hex countersunk hole 4221, and finally inserts into the first internal hex countersunk hole 411. Rotating the hex wrench rotates the screw 41, and the rotation of the screw 41 drives the movement of the sliding base plate 72.

[0081] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A self-adaptive pulley assembly for a linkage door, characterized in that, include: Base (1); The slider (2) is slidably mounted on the base (1); The transmission wheel (3) is mounted on the sliding member (2); The limiting component (4) is disposed on the base (1) and is used to limit the sliding member (2). It can be adjusted to change the limiting position of the sliding member (2) in the sliding direction, or drive the sliding member (2) to move. The limiting component (4) includes a screw (41) and a threaded sleeve (42); the threaded sleeve (42) is screwed onto the screw (41), and the threaded sleeve (42) provides a limit for the sliding member (2). Rotating the threaded sleeve (42) causes the threaded sleeve (42) to move on the screw (41) to change the limiting position of the sliding member (2) or to drive the sliding member (2) to move. It also includes a tensioning component (5); the tensioning component (5) is connected to the base (1) and the sliding component (2) respectively to adjust the relative position of the transmission wheel (3) in the sliding direction of the sliding component (2). The tensioning component (5) is used to automatically adjust the position of the transmission wheel (3) when the force on the transmission wheel (3) changes.

2. The adaptive pulley assembly for a linkage door according to claim 1, characterized in that, The sliding member (2) includes a mounting base (21) and a limiting block (22); The mounting base (21) and the limiting block (22) engage to form a sliding guide groove between them, and the sliding guide groove is slidably engaged with the base (1).

3. The adaptive pulley assembly for a linkage door according to claim 2, characterized in that, The mounting base (21) is provided with a limiting hole (211); The threaded sleeve (42) is provided with a limiting protrusion (421), which is inserted into the limiting hole (211).

4. The adaptive pulley assembly for a linkage door according to claim 2, characterized in that, It also includes wheel fixing components (6); The wheel fixing member (6) is disposed on the mounting base (21), one end of the transmission wheel (3) is rotatably connected to the mounting base (21), and the other end is rotatably connected to the wheel fixing member (6).

5. The adaptive pulley assembly for a linkage door according to claim 1, characterized in that, The threaded sleeve (42) is provided with a connecting hole (422) in the middle; The screw (41) is screwed into the connecting hole (422); And / or the screw (41) is provided with a first internal hexagon countersunk hole (411) at one end of the threaded sleeve (42).

6. The adaptive pulley assembly for a linkage door according to claim 5, characterized in that, The connecting hole (422) is divided into a threaded section and a second internal hexagon countersunk hole (4221) section in sequence along the direction of the screw (41) inserted into the threaded sleeve (42).

7. A linkage door adaptive pulley assembly according to any one of claims 1-6, characterized in that, The screw (41) is provided with an annular groove (11); The screw (41) is rotatably mounted on the base (1) through the annular groove (11).

8. The adaptive pulley assembly for a linkage door according to claim 7, characterized in that, It also includes an upper pulley section (7), which includes: Upper pulley (71); A sliding base plate (72) is slidably disposed on the base (1) and connected to the screw (41), and the upper pulley (71) is rotatably disposed above the sliding base plate (72); The drive unit (74) is disposed between the upper pulley (71) and the sliding base plate (72). The screw (41) drives the sliding base plate (72) to slide back and forth so that the drive unit (74) acts on the upper pulley (71).

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