Linkage wheel and linkage door structure

Abstract

The utility model discloses a linkage wheel and a linkage door structure. The linkage wheel comprises a base and a window sash installed on the linkage door, a containing cavity is formed in the base, and a baffle is arranged in the containing cavity; the movable part is movably arranged on the base in the length direction of the base, and the movable part is provided with a sliding interval; the belt pulley assembly is rotatably mounted on the movable part in the height direction of the base and used for winding a belt; the elastic piece is arranged between the baffle and the movable piece; and the adjusting assembly is arranged on the elastic piece and used for adjusting the compression amount of the elastic piece, so that the belt pulley assembly tensions the belt in a self-adaptive mode in the sliding interval. A user can directly adjust the elastic force of the elastic piece through the adjusting assembly, so that after the belt is wound around the belt wheel assembly, the movable piece drives the belt wheel assembly to conduct self-adaptive tensioning on the belt in the sliding interval, and the linkage door structure does not need to be disassembled.

Description

Technical Field

[0001] The utility model relates to the field of wearable devices, in particular to a linkage wheel. Background Art

[0002] In the installation of linkage doors such as double-leaf doors and triple-leaf doors seen in daily life, a door transmission structure is required. Commonly used ones include gears and belt drives. The gear transmission structure is complex and has high installation requirements, so most use belt drives.

[0003] However, with the continuous use of the linkage door, the tension of the belt will continuously decrease, thus affecting the transmission effect of the linkage door. And the existing belt transmission structure cannot conveniently adjust the tightness of the belt. Even if the belt can be adjusted, the linkage door needs to be disassembled and reinstalled, and the debugging process is very inconvenient, and there is a risk of damaging the linkage door. Summary of the Utility Model

[0004] The utility model provides a linkage wheel and a linkage door structure to improve the convenience of adjusting the tightness of the belt of the linkage door.

[0005] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] In the first aspect of the technical solution of the utility model, a linkage wheel is provided, including:

[0007] A base installed on the sash of the linkage door. A receiving cavity is formed in the base, and a baffle is provided in the receiving cavity;

[0008] A movable member movably arranged on the base along the length direction of the base, and the movable member has a sliding interval;

[0009] A pulley assembly rotatably installed on the movable member around the height direction of the base for winding a belt;

[0010] An elastic member arranged between the baffle and the movable member;

[0011] An adjusting assembly arranged on the elastic member for adjusting the compression amount of the elastic member so that within the sliding interval, the pulley assembly adaptively tensions the belt.

[0012] Preferably, the movable member includes:

[0013] A mounting plate arranged on the upper surface of the base for mounting the pulley assembly;

[0014] A sliding piece movably arranged in the receiving cavity along the length direction of the base.

[0015] Preferably, the movable member further includes:

[0016] A bent portion, connected between the mounting plate and the sliding piece, and a movable groove is formed on the upper surface of the base, and the bent portion is slidably engaged with the movable groove.

[0017] Preferably, the adjusting assembly includes:

[0018] A screw rod, penetrating through the sliding piece along the length direction of the base and located in the accommodating cavity; a limiting card slot is formed in the circumferential direction at one end of the screw rod away from the sliding piece, and a limiting bayonet is formed on the baffle, and the limiting bayonet is engaged with the limiting card slot so that the screw rod and the baffle can rotate relative to each other and cannot slide relative to each other;

[0019] A nut, threadedly connected to the screw rod, and the nut and the screw rod can slide relative to each other and cannot rotate relative to each other.

[0020] Preferably, the elastic member is a spring, the spring is sleeved on the screw rod, and both ends of the elastic member respectively abut against the nut and the sliding piece;

[0021] Wherein, rotating the screw rod can drive the nut to reciprocate along the axial direction of the screw rod to adjust the elastic force of the spring.

[0022] Preferably, strip-shaped protrusions are provided on the inner wall of the accommodating cavity to cooperate with the inner wall of the accommodating cavity to form a slideway with a preset shape, and the shapes of the nut and the sliding piece both match the cross-sectional shape of the slideway, and both the nut and the sliding piece are slidably engaged with the slideway.

[0023] Preferably, the preset shape at least includes a rectangular shape.

[0024] Preferably, a limiting member is further provided on the base, a limiting groove is formed on the mounting plate, and the limiting member is slidably engaged with the limiting groove so that the mounting plate is slidably limited within the sliding interval.

[0025] Preferably, a wedging hole is further formed on the base, and a wedging bolt is installed in the wedging hole for fixing the base to the window sash of the linkage door.

[0026] In the second aspect of the technical solution of the present invention, a linkage door structure is provided, including the above-mentioned linkage wheel.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) The user can directly adjust the elastic force of the elastic member through the adjustment assembly, so that after the pulley assembly is wound with the belt, the movable member drives the pulley assembly to adaptively tension the belt within the sliding range, without disassembling the linkage door structure.

[0029] (2) By controlling the degree of compression of the spring to provide different magnitudes of elastic force, so as to provide an elastic force in the direction opposite to the belt tension for the pulley assembly, and thus the tension degree of the belt can be adjusted as needed.

[0030] (3) The limiting member is in sliding fit with the limiting groove, and can limit the movement of the mounting plate, so as to control the maximum tension degree of the belt, to avoid damaging the belt during the adjustment process, and improve the safety of belt adjustment. Description of the Drawings

[0031] Figure 1 It is a schematic diagram of the overall structure of the linkage wheel provided by an embodiment of the present invention;

[0032] Figure 2 It is an exploded view of the linkage wheel provided by an embodiment of the present invention;

[0033] Figure 2A It is a cross-sectional view of the linkage wheel provided by an embodiment of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the base;

[0035] Figure 4 It is a schematic diagram of the structure of the movable member;

[0036] Figure 5 It is a schematic diagram of the structure of the adjustment assembly;

[0037] Figure 6 It is a schematic diagram of the structure of a linkage door structure provided by an embodiment of the present invention.

[0038] In the drawings, each reference numeral represents:

[0039] 1. Base; 11. Bottom plate; 12. Outer cover; 13. Wedge bolt; 14. Baffle; 101. Accommodating cavity; 102. Striped protrusion; 111. Wedge hole; 121. Movable groove; 122. Limiting member; 123. Avoidance groove; 141. Limiting bayonet;

[0040] 2. Movable member; 21. Mounting plate; 22. Slide piece; 23. Bent portion; 211. Mounting hole; 212. Limiting groove; 221. Through hole;

[0041] 3. Pulley assembly; 31. Rotating shaft; 32. Bearing; 33. Pulley;

[0042] 4. Adjusting component; 41. Screw; 42. Nut; 411. Limit card slot;

[0043] 5. Elastic member; 100. Linkage wheel; 200. Linkage door structure. Detailed implementation manners

[0044] To make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0045] As Figure 1 and Figure 2 shown, a linkage wheel 100 provided by an embodiment of the present utility model includes a base 1, a movable member 2, a pulley assembly 3, an adjusting component 4, and an elastic member 5. Among them, the base 1 is fixed to the bottom of the window sash of the linkage door to serve as an installation basis. The movable member 2 is movably installed on the base 1 along the length direction of the base 1. The pulley assembly 3 is installed on the movable member 2. Therefore, the position of the pulley assembly 3 can be adjusted by the relative movement of the movable member 2 and the base 1, and further the tightness of the belt can be adjusted. As Figure 2A shown, the elastic member 5 is disposed between the base 1 and the movable member 2 to provide elastic force. The adjusting component 4 is disposed on the elastic member 5 to adjust the compression amount of the elastic member 5, so that the pulley assembly 3 can adaptively tension the belt.

[0046] As Figure 3 shown, in this embodiment, the base 1 includes a bottom plate 11 and an outer cover 12. A wedging hole 111 is formed in the bottom plate 11, and a wedging bolt 13 is installed in the wedging hole 111 to fix the base 1 to the window sash of the linkage door. The outer cover 12 is in a U shape, and the U-shaped outer cover 12 covers the bottom plate 11 to form a receiving cavity 101. A baffle 14 is provided in the receiving cavity 101 for connection with the adjusting component 4 (detailed description will be given below). In addition, a movable groove 121 is formed on the upper surface of the outer cover 12 for sliding cooperation with the movable member 2.

[0047] As Figure 4As shown, in this embodiment, the movable member 2 includes a mounting plate 21, a sliding piece 22, and a bending portion 23. Among them, the mounting plate 21 is disposed on the upper surface of the base 1, and a mounting hole 211 is formed in the mounting plate 21 for mounting the pulley assembly 3. The sliding piece 22 is movably disposed in the receiving cavity 101 along the length direction of the base 1, and a through hole 221 is formed in the sliding piece 22 along the length direction of the base 1 for mounting the nut 41 of the adjusting assembly 4. The bending portion 23 is connected between the mounting plate 21 and the sliding piece 22, and the bending portion 23 is in sliding fit with the movable groove 121. When the sliding piece 22 moves in the receiving cavity 101, the bending portion 23 correspondingly moves in the movable groove 121 to avoid movement interference.

[0048] As Figure 2 shown, in this embodiment, the pulley assembly 3 includes a rotating shaft 31, a bearing 32, and a pulley 33. Among them, the rotating shaft 31 is fixedly installed in the mounting hole 211; the bearing 32 is rotatably sleeved on the rotating shaft 31 around the axis of the rotating shaft 31; the pulley 33 is rotatably sleeved on the outside of the bearing 32 around the axis of the rotating shaft 31. It can be understood that a belt (not shown in the figure) is installed on the pulley 33. Normally, the belt is in a tensioned state, so as to apply a rightward force to the pulley 33, and then transmit the acting force to the mounting plate 21 to apply a rightward force to the movable member 2.

[0049] As Figure 5 shown, in this embodiment, the adjusting assembly 4 includes a screw 41 and a nut 42. Among them, the screw 41 passes through the through hole 221 of the sliding piece 22 and is located in the receiving cavity 101. And, a limiting card slot 411 is formed in the end of the screw 41 far from the sliding piece 22 (i.e., the right end of the screw 41) in the circumferential direction; correspondingly, a limiting bayonet 141 is formed in the baffle 14 (as Figure 3 shown), and the limiting bayonet 141 is engaged with the limiting card slot 411 so that the screw 41 and the baffle 14 can rotate relative to each other and cannot slide relative to each other. The nut 42 is threadedly connected to the screw 41, and the nut 42 and the screw 41 can slide relative to each other and cannot rotate relative to each other.

[0050] In this embodiment, the elastic member 5 is a spring. The spring 5 is sleeved on the screw 41, and both ends of the spring 5 respectively abut against the nut 42 and the sliding piece 22.

[0051] Next, in combination with Figure 2 and Figure 2A the working principle of the linkage wheel will be described in detail:

[0052] When the rotating screw 41 rotates, through the thread fit between the screw 41 and the nut 42, the rotational motion is converted into the linear motion of the nut 42, causing the nut 42 to move leftward, thereby compressing the spring 5 to utilize the spring 5 to exert a leftward acting force on the sliding piece 22.

[0053] Moreover, since the belt exerts a rightward acting force on the movable member 2, therefore, as the spring 5 is continuously compressed, when the leftward acting force is greater than the rightward acting force, the spring 5 will push the sliding piece 22 to have a tendency to move leftward, and then drive the entire pulley assembly 3 to have a tendency to move leftward to tighten the belt.

[0054] In addition, by controlling the degree of compression of the spring 5, the magnitude of the leftward acting force exerted by the spring 5 on the sliding piece 22 can be controlled, thereby controlling the tendency of the entire pulley assembly 3 to move leftward, and then the tightening degree of the belt can be adjusted as needed.

[0055] In the above embodiment, preferably, strip-shaped protrusions 102 are provided on the inner wall of the accommodating cavity 101. In this embodiment, the bottom plate 11 is inserted into the bottom of the outer cover 12, so that the two side plates of the bottom plate 11 are located in the accommodating cavity 101, and the strip-shaped protrusions 102 are formed by the tops of the two side plates. And, the strip-shaped protrusions 102 cooperate with the inner wall of the accommodating cavity 101 to jointly form a slideway of a preset shape (rectangular in this embodiment); correspondingly, the shapes of the nut 42 and the sliding piece 22 both match the cross-sectional shape of the slideway, so that the nut 42 and the sliding piece 22 are both in sliding fit with the slideway to guide the sliding of the nut 42 and the sliding piece 22.

[0056] In the above embodiment, preferably, a limiting member 122 is further provided on the outer cover 12 of the base 1. Correspondingly, a limiting groove 212 is formed on the mounting plate 21, and the limiting member 122 is in sliding fit with the limiting groove 212 to be used for moving and limiting the mounting plate 21. It can be understood that as the screw 41 rotates continuously, the mounting plate 21 will have a tendency to move leftward. When the limiting member 122 touches the inner wall of the limiting groove 212, the mounting plate 21 moves leftward to the extreme position, thereby being able to control the maximum tension degree of the belt to avoid damaging the belt during the adjustment process and improving the safety of belt adjustment.

[0057] As Figure 6 shown, the embodiment of the present invention further provides a linkage door structure 200, and the linkage door structure includes the above-mentioned linkage wheel 100.

[0058] In summary, a linkage wheel and a linkage door structure provided by the embodiment of the present invention have the following beneficial effects:

[0059] (1) The user can directly adjust the elastic force of the elastic member 5 through the adjusting component 4, so that after the pulley assembly 3 is wound with a belt, the movable member 2 drives the pulley assembly 3 to adaptively tension the belt within the sliding range, without disassembling the linkage door structure.

[0060] (2) By controlling the degree of compression of the elastic member 5 to provide different magnitudes of elastic forces, thereby providing an elastic force in the direction opposite to the belt tension for the pulley assembly, and then the tension degree of the belt can be adjusted as needed.

[0061] (3) The limiting member 122 is in sliding fit with the limiting groove 212, and can limit the movement of the mounting plate 21, so as to control the maximum tension degree of the belt, to avoid damaging the belt during the adjustment process, and improve the safety of belt adjustment.

[0062] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0063] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0064] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present utility model, and all should be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A linkage wheel, characterized in that: include: A base is mounted on the window sash of the linkage door, wherein a receiving cavity is formed in the base, and a baffle is provided in the receiving cavity; A movable member is movably disposed on the base along the length direction of the base, and the movable member has a sliding range; A pulley assembly is rotatably mounted on the movable member in the height direction of the base for winding a belt; An elastic member, disposed between the baffle and the movable member; An adjusting assembly is arranged on the elastic member and is used for adjusting the compression amount of the elastic member so that within the sliding range, the pulley assembly adaptively tightens the belt.

2. The linkage wheel according to claim 1, characterized in that: The movable parts include: A mounting plate, disposed on the upper surface of the base, for mounting the pulley assembly; A slide is movably arranged in the accommodating cavity along the length direction of the base.

3. The linkage wheel according to claim 2, characterized in that: The movable part also includes: The bending portion is connected between the mounting plate and the sliding sheet, and a movable groove is provided on the upper surface of the base, and the bending portion is slidably matched with the movable groove.

4. The linkage wheel according to claim 2, characterized in that: The adjustment component comprises: A screw rod passes through the slide plate along the length direction of the base and is located in the accommodating cavity; a limit slot is provided on one end of the screw rod away from the slide plate along the circumferential direction, and a limit opening is provided on the baffle plate, and the limit opening is engaged with the limit slot, so that the screw rod and the baffle plate can rotate relative to each other but cannot slide relative to each other; A nut is threadedly connected to the screw rod, and the nut and the screw rod can slide relative to each other but cannot rotate relative to each other.

5. The linkage wheel according to claim 4, characterized in that: The elastic member is a spring, the spring is sleeved on the screw rod, and two ends of the elastic member are respectively pressed against the nut and the sliding plate; Wherein, rotating the screw rod can drive the nut to move back and forth along the axial direction of the screw rod to adjust the elastic force of the spring.

6. The linkage wheel according to claim 4, characterized in that: A strip-shaped protrusion is provided on the inner wall of the accommodating cavity to cooperate with the inner wall of the accommodating cavity to form a slideway of a preset shape. The shapes of the nut and the slide plate match the cross-sectional shape of the slideway, and the nut and the slide plate both slide in cooperation with the slideway.

7. The linkage wheel according to claim 6, characterized in that: The preset shape at least includes a rectangular shape.

8. The linkage wheel according to claim 2, characterized in that: The base is also provided with a limiting member, and the mounting plate is provided with a limiting groove, and the limiting member is slidably matched with the limiting groove so that the mounting plate can be slidably limited within the sliding range.

9. The linkage wheel according to claim 1, characterized in that: The base is also provided with a wedging hole, in which a wedging bolt is installed for fixing the base on the window sash of the linkage door.

10. A linkage door structure, characterized in that: It comprises a linkage wheel as described in any one of claims 1 to 9.

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