A pulley type anti-swing device and a sliding door system

Abstract

The present invention relates to the technical field of devices and systems for preventing overhead sliding doors from shaking. A pulley type anti-sway device comprises: an outer frame and an inner frame, wherein the inner frame is provided with a rolling component rotatably connected to the inner frame, and the bottom of the rolling component protrudes from the inner frame; the inner frame is sleeved in the outer frame and movably connected to the outer frame; a partition is provided in the middle of the outer frame, and an elastic mechanism is provided on the partition, the elastic mechanism abuts against the top of the inner frame, an adjusting part is provided on one side of the elastic mechanism, the adjusting part is used to adjust the elastic force of the elastic mechanism, and a pulling mechanism is provided on the elastic mechanism, which is used to cancel or apply the elastic force of the elastic mechanism on the top of the inner frame; the present invention has a pulley type anti-sway device, which effectively prevents the overhead sliding door from shaking, and has a pulling mechanism, through which the elastic force applied to the inner frame can be quickly canceled, so that the maintenance and resetting of the overhead sliding door are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of devices and systems for preventing swinging of hanging sliding doors, and in particular to a pulley type anti-swing device and a hanging sliding door system. Background Art

[0002] Since the track of a hanging sliding door is arranged at the top of the door leaf and supports the weight of the door leaf through a hanging method to achieve movement, it is different from a general sliding rail door and becomes a different category. The bottom of the hanging sliding door has no sliding rail, so it has good passability; and there will be no problem of difficult treatment caused by dust accumulation in the track. Based on the above advantages, the application of hanging sliding doors is becoming more and more popular; however, due to the structural property that the hanging rail of the hanging sliding door is fixed at one end, the hanging sliding door is prone to swing during use, which to a certain extent affects the use effect of the hanging sliding door. Existing solutions include, for example: setting hidden guide wheels, which are embedded in the ground and arranged at the overlapping part of the door frames when two doors are closed. The guide wheels will not be exposed when the door leaf opens and closes, and the guide wheels play a good role in preventing the door leaf from swinging (avoiding the swing caused by lateral impact force). However, a negative effect brought by the hidden property of the guide wheel solution is that when the door leaf is in the closed state, since the guide wheels are only arranged at the overlapping part of the door frames of the two doors, that is, only one anti-swing wheel is arranged on one side of one door, and the other side is still in a free state. Therefore, there is still a problem of relatively large swing on the free side. When a child pats the door on the free end side, the door will still swing strongly.

[0003] To solve the problem of swinging of the hanging sliding door, there is also a method of setting anti-swing wheels at the left and right corners of the door. The wheels contact the ground, and a part of the weight of the door is borne on the wheels. For some double-layer glass hanging sliding doors with very good quality, it can reach 30 - 40 KG. When designing the wheels, the force that the wheels can support reaches 60 KG of gravity; a downward pressure is generated on the wheels, and the wheels under pressure will generate friction with the ground, and the friction force ensures that the door is not easily swung. However, in this way, there are still problems: since there is no track set on the ground when sliding the sliding door, and when it is hit, such as by a ball or a scooter, the wheels are prone to deviate from the original driving direction, and because the wheels bear the gravity of the door, it is very difficult for the wheels to return to the correct position by themselves, which will further affect the normal use of the door. Summary of the Invention

[0004] To solve the above problems of the prior art, the present invention provides a pulley type anti-swing device and a hanging sliding door system.

[0005] Specific solution of the present invention: A pulley type anti-swing device, comprising: an outer frame and an inner frame. A rolling member is provided in the inner frame and is rotatably connected thereto, and the bottom of the rolling member protrudes from the inner frame. The inner frame is sleeved in the outer frame and is movably connected thereto. A partition is provided in the middle of the outer frame, and an elastic mechanism is provided on the partition. The elastic mechanism abuts against the top end of the inner frame. An adjusting portion is provided on one side of the elastic mechanism, and the adjusting portion is used to adjust the elastic force of the elastic mechanism. A toggling mechanism is provided on the elastic mechanism for canceling or applying the elastic force of the elastic mechanism on the top of the inner frame.

[0006] Preferably, the elastic mechanism is an arc-shaped elastic piece. One end of the arc-shaped elastic piece is provided with a fixed end, and the fixed end is fixedly connected to the partition. The other end is provided with a free end. An unloading groove is provided on the upper part of the free end. The free end passes through the partition and abuts against the toggling mechanism. An adjusting plate is provided on the lower part of the free end, and the adjusting plate is vertically abutted against the adjusting portion.

[0007] Preferably, the elastic mechanism includes: a locking elastic piece, and the locking elastic piece includes: a supporting arc, and a plurality of clamping grooves are provided on both sides of the supporting arc;

[0008] A long elastic piece and a short elastic piece are provided on the locking elastic piece. The long elastic piece and the short elastic piece abut against each other on the supporting arc. The other end of the long elastic piece is provided with a fixed end, and the fixed end is fixedly connected to the partition. The other end of the short elastic piece is provided with a free end. An unloading groove is provided on the upper part of the free end. The free end passes through the partition and abuts against the toggling mechanism. An adjusting plate is provided on the lower part of the free end, and the adjusting plate is vertically abutted against the adjusting portion.

[0009] Preferably, the toggling mechanism includes: a toggle rod, the middle of the toggle rod is rotatably connected to the outer frame, a protrusion is provided at the front end of the toggle rod, and the protrusion abuts against the free end. When the toggle rod is toggled, the protrusion can slide into or out of the unloading groove.

[0010] Preferably, a power-taking rod is hinged to the outer end of the toggle rod, and the length of the power-taking rod is greater than the length of the toggle rod.

[0011] Preferably, a kidney-shaped hole is provided on the outer frame, and a corresponding pin is provided on the inner frame. The pin is inserted into the kidney-shaped hole to enable the inner frame to be slidably connected to the outer frame.

[0012] Preferably, the adjusting portion is an adjusting bolt. The middle of the adjusting bolt is threadedly connected to the outer frame, and the front end abuts against the adjusting plate.

[0013] Preferably, the rolling part is an anti-swing wheel.

[0014] Preferably, the clamping groove is of a wavy structure.

[0015] A sliding door system includes the above-mentioned pulley type anti-swing device and a sliding door equipped with the pulley type anti-swing device.

[0016] The beneficial effects of the present invention are reflected in that the elastic force of the elastic mechanism presses the inner frame tightly, so that the anti-swing wheel on the inner frame contacts the ground, realizing the function of supporting the sliding door, improving the stability of the sliding door, and preventing the lower end of the sliding door from shaking; when the sliding door is impacted by an external force, the short elastic piece transmits the impact force to the long elastic piece and causes the supporting arc to deform. At this time, the movable end of the long elastic piece is stuck into the corresponding clamping groove, so that the long elastic piece continues to apply an elastic force to the inner frame to prevent deviation; when the sliding door shakes and deviates, by pulling the lever mechanism, the elastic force applied to the inner frame can be quickly cancelled. After correcting the sliding door, the lever mechanism is used to apply an elastic force to the inner frame again, which is convenient to operate and simple to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of one embodiment of the pulley type anti-swing device provided by the present invention;

[0018] Figure 2 is Figure 1 the front view structural schematic diagram of;

[0019] Figure 3 is the front view structural schematic diagram of another embodiment of the pulley type anti-swing device provided by the present invention;

[0020] Figure 4 is the three-dimensional structural schematic diagram of the locking elastic piece provided by the present invention;

[0021] Figure 5 is the structural schematic diagram of the sliding door system provided by the present invention;

[0022] Reference numerals: 100, pulley type anti-swing device; 200, sliding door; 1, outer frame; 101, partition; 2, inner frame; 201, anti-swing wheel; 3, arc-shaped elastic piece; 301, fixed end; 302, free end; 303, force relief groove; 304, adjusting plate; 4, short elastic piece; 401, free end; 402, force relief groove; 403, adjusting plate; 5, long elastic piece; 501, fixed end; 6, locking elastic piece; 601, supporting arc; 602, clamping groove; 7, lever; 701, protrusion; 8, adjusting bolt; 9, power take-off rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] Reference Figures 1 - 2 A pulley type anti-sway device 100 comprises: an outer frame 1 and an inner frame 2, wherein the inner frame 2 is provided with a rolling component rotatably connected thereto, and the bottom of the rolling component protrudes from the inner frame 2; the inner frame 2 is sleeved in the outer frame 1 and movably connected thereto; a partition 101 is provided in the middle of the outer frame 1, and an elastic mechanism is provided on the partition 101, and the elastic mechanism abuts against the top end of the inner frame 2, and an adjusting part is provided on one side of the elastic mechanism, and the adjusting part is used to adjust the elastic force of the elastic mechanism, and a pulling mechanism is provided on the elastic mechanism for canceling or applying the elastic force of the elastic mechanism on the top end of the inner frame 2.

[0026] Specifically, elastic force is applied to the inner frame 2 through an elastic mechanism, and the elastic force of the elastic mechanism is adjusted by the adjustment part until the elastic force reaches the required requirement, so that the elastic mechanism supports the inner frame 2 through the elastic force, and this supporting force is a flexible support. When encountering obstacles, it has a flexible deformation avoidance function, thereby avoiding the generation of concentrated stress to damage the equipment.

[0027] In this embodiment, the elastic mechanism is an arc-shaped spring piece 3, one end of which is provided with a fixed end 301, and the fixed end 301 is fixedly connected to the partition 101; the other end is provided with a free end 302, the upper part of the free end 302 is provided with a force unloading groove 303, the free end 302 passes through the partition 101 and abuts against the pull mechanism; the lower part of the free end 302 is provided with an adjustment plate 304, and the adjustment plate 304 is vertically abutted against the adjustment part. Figures 1 - 2

[0028] Specifically, the arc spring piece 3 is a steel sheet, and in this embodiment, the length of the steel sheet is 4-8 cm. Generally, the height of the rear door after installation from the ground is 0.5-2 cm, and to realize the return of the wheel-sliding anti-sway device, the steel sheet needs to release a length of 0.5-2 cm, preferably made of spring steel, and the adjustment plate 304 is squeezed by the adjustment part to increase the deformation of the arc spring piece 3 and the elastic force applied to the inner frame 2. When the elastic force applied to the inner frame 2 needs to be canceled, the elastic force can be canceled by controlling the arc spring piece 3 to rise by the pull mechanism, which is convenient for maintenance and simple to operate.

[0029] In this embodiment, the actuating mechanism includes: a lever 7, the middle part of the lever 7 is rotatably connected to the outer frame 1, a protrusion 701 is provided at the front end of the lever 7, the protrusion 701 abuts against the free end 401, and when the lever is actuated, the protrusion 701 can slide into or out of the unloading groove 402.

[0030] Specifically, the middle part of the lever 7 is hinged to the outer frame 1 through a pin shaft. Using the lever principle, by rotating the outer end, the protrusion 701 can slide on the free end 302, that is, it can slide into the unloading groove 303 (low point) and can also slide to the upper end of the unloading groove 303 (high point). When the protrusion 701 slides into the unloading groove 303 of the free end 302, the elastic force exerted by the arc-shaped elastic piece 3 on the inner frame 2 is cancelled; when the protrusion 701 slides to the upper end of the unloading groove 303, the arc-shaped elastic piece 3 reapplies the required elastic force to the inner frame 2.

[0031] In this embodiment, a power take-off lever 9 is hinged to the outer end of the lever 7, and the length of the power take-off lever 9 is greater than the length of the lever 7.

[0032] Specifically, the lever 7 is controlled by the power take-off lever 9, which is convenient to operate; since the power take-off lever 9 is hinged to the lever 7, the power take-off lever 9 can be folded. After adjustment, only by folding the power take-off lever 9 can the space occupation be minimized.

[0033] In this embodiment, an oblong hole is provided on the outer frame 1, and a corresponding pin is provided on the inner frame 2. The pin is inserted into the oblong hole to make the inner frame 2 slidably connected to the outer frame 1.

[0034] Specifically, the oblong hole is vertically downward, and the pin is inserted into the oblong hole. On the one hand, it can ensure the relative sliding between the inner frame 2 and the outer frame 1. On the other hand, it effectively provides a guiding function for the inner frame 2, ensuring the regular trajectory line of the relative sliding of the inner frame 2 on the outer frame 1, and providing a guarantee for the stable operation of this device.

[0035] In this embodiment, the adjusting part is an adjusting bolt 8. The middle part of the adjusting bolt 8 is threadedly connected to the outer frame 1, and the front end abuts against the adjusting plate 403. Specifically, in this embodiment, the connecting bolt is an internal hexagonal bolt, and fine adjustment is carried out through an internal hexagonal wrench. The operation is simple and does not occupy space.

[0036] In this embodiment, the rolling part is a stop wheel 201. In this embodiment, the stop wheel 201 is made of nylon and has the functions of noise reduction, shock absorption and preventing floor scratches.

[0037] In this embodiment, the clamping groove 602 is of a wavy structure. Specifically, the clamping groove 602 is set to be wavy instead of serrated because the wavy setting can have a certain buffering and absorption of impact.

[0038] In this embodiment, a hanging sliding door 200 system includes the above-mentioned pulley type anti-swing device 100 and the hanging sliding door 200 installed with the pulley type anti-swing device 100. For details, see Figure 5

[0039] Embodiment 2:

[0040] Refer to Figures 3 - 5 , a pulley type anti-swing device 100 includes: an outer frame 1 and an inner frame 2. A rolling member is arranged in the inner frame 2 and is rotatably connected thereto, and the bottom of the rolling member protrudes from the inner frame 2; the inner frame 2 is sleeved in the outer frame 1 and is movably connected thereto; a partition 101 is provided in the middle of the outer frame 1, and an elastic mechanism is arranged on the partition 101. The elastic mechanism abuts against the top end of the inner frame 2, an adjusting part is arranged on one side of the elastic mechanism, the adjusting part is used for adjusting the elastic force of the elastic mechanism, and a toggling mechanism is arranged on the elastic mechanism for canceling or applying the elastic force of the elastic mechanism on the top of the inner frame 2.

[0041] Specifically, an elastic force is applied to the inner frame 2 through the elastic mechanism, and the elastic force of the elastic mechanism is adjusted by the adjusting part. After the elastic force reaches the required value, the elastic mechanism supports the inner frame 2 through the elastic force, and this support force is a flexible support. When encountering an obstacle, it has a flexible deformation and avoidance function, avoiding the generation of concentrated stress and damaging the equipment.

[0042] In this embodiment, the elastic mechanism includes: a locking spring piece 6, and the locking spring piece 6 includes: a supporting arc 601, and a plurality of clamping grooves 602 are arranged on both sides of the supporting arc 601;

[0043] A long spring piece 5 and a short spring piece 4 are arranged on the locking spring piece. The long spring piece 5 abuts against the short spring piece 4 on the supporting arc 601. The other end of the long spring piece 5 is provided with a fixed end 501, and the fixed end 501 is fixedly connected to the partition 101; the other end of the short spring piece 4 is provided with a free end 401, and a force relief groove 402 is arranged on the upper part of the free end 401; the free end 401 passes through the partition 101 and abuts against the toggling mechanism, and an adjusting plate 403 is arranged on the lower part of the free end 401, and the adjusting plate 403 is vertically abutted against the adjusting part. For details, see Figure 3

[0044] Specifically, when the hanging sliding door 200 is impacted by an external force, the short spring piece 4 transmits the impact force to the long spring piece, and the supporting arc 601 is deformed. At this time, the movable end of the long spring piece 5 is clamped into the corresponding clamping groove 602, so that the long spring piece 5 continues to apply an elastic force to the inner frame 2 to prevent deviation; when the hanging sliding door 200 shakes and deviates, by toggling the lever mechanism, the elastic force applied to the inner frame 2 can be quickly canceled. After the hanging sliding door 200 is corrected, the lever mechanism is used to apply an elastic force to the inner frame 2 again, which is convenient to operate and simple to maintain.

[0045] In this embodiment, the actuating mechanism includes: a lever 7, the middle part of the lever 7 is rotatably connected to the outer frame 1, a protrusion 701 is provided at the front end of the lever 7, and the protrusion 701 abuts against the free end 401. When the lever is actuated, the protrusion 701 can slide into or out of the force-relieving groove 402.

[0046] Specifically, the middle part of the lever 7 is hinged to the outer frame 1 through a pin shaft. Using the lever principle, by rotating the outer end, the protrusion 701 can slide on the free end 302, that is, it can slide into the force-relieving groove 303 (low point) and can also slide to the upper end (high point) of the force-relieving groove 303. When the protrusion 701 slides into the force-relieving groove 303 of the free end 302, the elastic force exerted by the arc-shaped elastic piece 3 on the inner frame 2 is cancelled; when the protrusion 701 slides to the upper end of the force-relieving groove 303, the arc-shaped elastic piece 3 reapplies the required elastic force to the inner frame 2.

[0047] In this embodiment, a power-taking rod 9 is hinged to the outer end of the lever 7, and the length of the power-taking rod 9 is greater than that of the lever 7.

[0048] Specifically, the lever 7 is controlled by the power-taking rod 9, which is convenient to operate; since the power-taking rod 9 is hinged to the lever 7, the power-taking rod 9 can be folded. After adjustment, only by folding the power-taking rod 9 can the space occupation be minimized.

[0049] In this embodiment, an oblong hole is provided on the outer frame 1, and a corresponding pin is provided on the inner frame 2. The pin is inserted into the oblong hole to enable the inner frame 2 to be slidably connected to the outer frame 1.

[0050] Specifically, the oblong hole is vertically downward, and the pin is inserted into the oblong hole. On the one hand, it can ensure the relative sliding between the inner frame 2 and the outer frame 1. On the other hand, it effectively provides a guiding function for the inner frame 2, ensuring the regular trajectory line of the relative sliding of the inner frame 2 on the outer frame 1, and providing a guarantee for the stable operation of this device.

[0051] In this embodiment, the adjusting part is an adjusting bolt 8. The middle part of the adjusting bolt 8 is threadedly connected to the outer frame 1, and the front end abuts against the adjusting plate 403.

[0052] Specifically, in this embodiment, the connecting bolt is an inner hexagon bolt, and fine adjustment is performed through an inner hexagon wrench. The operation is simple and does not occupy space.

[0053] In this embodiment, the rolling part is a stop wheel 201. In this embodiment, the stop wheel 201 is made of nylon and has the functions of noise reduction, shock absorption, and preventing scratching of the floor.

[0054] In this embodiment, the clamping groove 602 has a wavy structure. Specifically, the clamping groove 602 is set to be wavy instead of serrated because the wavy setting can have a certain buffering and absorption effect on impacts.

[0055] In this embodiment, a hanging sliding door 200 system includes the above-mentioned pulley type anti-swing device 100 and the hanging sliding door 200 installed with the pulley type anti-swing device 100. For details, see Figure 5

[0056] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top part", "bottom part", "inner", "outer", "inner side", "outer side", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. Among them, the "inner side" refers to the internal or enclosed area or space. The "periphery" refers to the area around a specific component or a specific area.

[0057] In the description of the embodiments of the present invention, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0058] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "install", "connect", "join", "assemble" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0059] In the description of the embodiments of the present invention, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0060] In the description of the embodiments of the present invention, it should be understood that "-" and "~" represent the range between two numerical values, and this range includes the endpoints. For example, "A - B" represents a range greater than or equal to A and less than or equal to B. "A ~ B" represents a range greater than or equal to A and less than or equal to B.

[0061] In the description of the embodiments of the present invention, the term "and / or" herein merely describes the association relationship of associated objects and represents that three relationships may exist. For example, A and / or B may represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents that the associated objects before and after are in an "or" relationship.

[0062] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulley-type anti-swing device (100), characterized in that, it includes: An outer frame (1) and an inner frame (2). A rolling component is arranged in the inner frame (2) and is rotatably connected thereto. The bottom of the rolling component protrudes from the inner frame (2); the inner frame (2) is sleeved in the outer frame (1) and is movably connected thereto; a partition plate (101) is provided in the middle of the outer frame (1), and an elastic mechanism is provided on the partition plate (101). The elastic mechanism abuts against the top end of the inner frame (2). An adjusting part is provided on one side of the elastic mechanism, and the adjusting part is used to adjust the elastic force of the elastic mechanism. A toggling mechanism is provided on the elastic mechanism for applying or canceling the elastic force of the elastic mechanism on the top of the inner frame (2); The elastic mechanism is an arc-shaped elastic sheet (3). One end of the arc-shaped elastic sheet (3) is provided with a fixed end (301), and the fixed end (301) is fixedly connected to the partition plate (101); the other end is provided with a free end (302). An unloading groove (303) is provided in the upper part of the free end (302), and the free end (302) passes through the partition plate (101) and abuts against the toggling mechanism; an adjusting plate (304) is provided in the lower part of the free end (302), and the adjusting plate (304) is vertically abutted against the adjusting part; The toggling mechanism includes: a toggle rod (7). The middle of the toggle rod (7) is rotatably connected to the outer frame (1). A protrusion (701) is provided at the front end of the toggle rod (7), and the protrusion (701) abuts against the free end (302). When the toggle rod is toggled, the protrusion (701) can slide into or out of the unloading groove (303).

2. A pulley-type anti-swing device (100), characterized in that, it includes: An outer frame (1) and an inner frame (2). A rolling component is arranged in the inner frame (2) and is rotatably connected thereto. The bottom of the rolling component protrudes from the inner frame (2); the inner frame (2) is sleeved in the outer frame (1) and is movably connected thereto; a partition plate (101) is provided in the middle of the outer frame (1), and an elastic mechanism is provided on the partition plate (101). The elastic mechanism abuts against the top end of the inner frame (2). An adjusting part is provided on one side of the elastic mechanism, and the adjusting part is used to adjust the elastic force of the elastic mechanism. A toggling mechanism is provided on the elastic mechanism for applying or canceling the elastic force of the elastic mechanism on the top of the inner frame (2); The elastic mechanism includes: a locking elastic sheet (6). The locking elastic sheet (6) includes: a support arc (601), and a plurality of clamping grooves (602) are provided on both sides of the support arc (601); The locking elastic piece (6) is provided with a long elastic piece (5) and a short elastic piece (4). The long elastic piece (5) and the short elastic piece (4) are in contact with each other on the supporting arc (601). The other end of the long elastic piece (5) is provided with a fixed end (501), and the fixed end (501) is fixedly connected to the partition plate (101). The other end of the short elastic piece (4) is provided with a free end (401), and the upper part of the free end (401) is provided with a force relief groove (402). The free end (401) passes through the partition plate (101) and is in contact with the actuating mechanism. The lower part of the free end (401) is provided with an adjusting plate (403), and the adjusting plate (403) is in perpendicular contact with the adjusting part.

3. A pulley type anti-swing device (100) according to claim 1, characterized in that: The outer end of the lever (7) is provided with a power take-off lever (9) hinged thereto, and the length of the power take-off lever (9) is greater than the length of the lever (7).

4. A pulley type anti-swing device (100) according to claim 1 or 2, characterized in that: The outer frame (1) is provided with a waist-shaped circular hole, and the inner frame (2) is provided with a corresponding pin. The pin is inserted into the waist-shaped circular hole, so that the inner frame (2) is slidably connected to the outer frame (1).

5. A pulley type anti-swing device (100) according to claim 1 or 2, characterized in that: The adjusting part is an adjusting bolt (8). The middle part of the adjusting bolt (8) is threadedly connected to the outer frame (1), and the front end is in contact with the adjusting plates (304, 403).

6. A pulley type anti-swing device (100) according to claim 1 or 2, characterized in that: The rolling part is an anti-swing wheel (201).

7. A pulley type anti-swing device (100) according to claim 2, characterized in that: The clamping groove (602) is of a wavy structure.

8. A hanging sliding door (200) system, characterized in that: It includes the pulley type anti-swing device (100) described in any one of claims 1-7 and the hanging sliding door (200) installed with the pulley type anti-swing device (100).

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