Anti-swing lower wheel structure
By using the wedge-shaped groove, wind deflector, and double pulley design of the anti-sway lower wheel structure, the problems of loose lower wheel and air leakage of the hanging door are solved, achieving higher stability and wind-blocking effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-03
AI Technical Summary
The existing lower wheel structure of the sliding door is prone to loosening during the pushing and pulling process, resulting in shaking and air leakage. In addition, the traditional screw connection method is not stable enough.
It adopts an anti-sway wheel structure, which includes a combination design of wedge groove, wind deflector and double pulley. The wedge block is connected to the wedge groove, the locking plate is engaged with the locking groove, and the pulley seat is equipped with pulley, forming an integrated structure to enhance stability and wind protection effect.
It improves the stability of the lower part of the hanging door, prevents loosening, extends its service life, and effectively covers the gap at the bottom of the door leaf, reducing air leakage.
Smart Images

Figure CN224078934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sliding door and window frames, and more specifically, to an anti-sway wheel structure. Background Technology
[0002] Sliding doors are a common door and window structure, especially hanging doors. Existing hanging doors typically use upper rollers to support the door panel. During the sliding process, the lower part of the door can swing to varying degrees. To address this issue, existing technologies use pulleys directly screwed onto the lower end of the door panel to limit its movement, as illustrated in patent document CN214303399U, which discloses an anti-sway structure for the lower part of a sliding door. However, with repeated sliding, the lower rollers can easily loosen, causing the swaying to recur. Furthermore, hanging doors often have gaps at the bottom, leading to air leakage. Utility Model Content
[0003] In order to overcome the defects of the existing technology, this utility model provides an anti-sway wheel structure to solve the above problems.
[0004] The technical solution adopted by this utility model to solve its technical problem is: an anti-sway wheel structure, including a fan material, a wedge-shaped groove is provided at the lower end of the fan material, a wind baffle is snapped into the wedge-shaped groove, and a double pulley is installed inside the lower end of the wind baffle.
[0005] In the aforementioned anti-sway wheel structure, a wedge is provided at the upper end of the wind deflector, and the inner walls on both sides of the wedge groove are provided with inclined surfaces corresponding to the outer walls on both sides of the wedge.
[0006] In the above-mentioned anti-sway wheel structure, the upper end of the wedge groove is provided with a slot, the opening of the slot faces downward, and the width of the opening is less than the width of the slot. The upper end of the wedge is provided with a locking plate, and the two sides between the locking plate and the wedge form a locking opening. The inner wall of the slot opening is engaged in the locking opening, and the locking plate is engaged in the slot.
[0007] In the aforementioned anti-sway wheel structure, the wedge, the locking plate, and the wind deflector are an integral structure.
[0008] In the aforementioned anti-sway wheel structure, the lower end of the wind deflector is integrally provided with a pulley groove, a pulley seat is fixedly installed in the pulley groove, and the double pulleys are installed in the pulley seat.
[0009] In the aforementioned anti-sway wheel structure, the length of the wedge block is the same as the length of the fan material.
[0010] The beneficial effects of this utility model are: the lower end of the fan material is connected to double pulleys through a wind baffle, which allows the double pulleys to limit the lower part of the door leaf while the wind baffle can block the gap at the lower end of the door leaf, thus achieving a wind-blocking effect. Moreover, the fan material and the wind baffle are connected by a wedge groove, which makes the tightness between the fan material and the wind baffle higher, preventing loosening. The service life is longer than that of the traditional screw connection structure. Attached Figure Description
[0011] Figure 1 This is a side view of the anti-sway wheel structure in this embodiment.
[0012] Figure 2 This is a side view of the fan material in this embodiment.
[0013] Figure 3 This is a side view of the wedge, wind deflector, and pulley groove in this embodiment.
[0014] In the diagram: 1. Fan material; 2. Wedge groove; 3. Slot; 4. Inclined surface; 5. Wedge block; 6. Clamping opening; 7. Clamping plate; 8. Windproof plate; 9. Pulley groove; 10. Pulley seat; 11. Double pulley. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0016] Combination Figures 1 to 3 The anti-sway wheel structure shown includes a fan material 1, with a wedge-shaped groove 2 at the lower end of the fan material 1. A wind baffle 8 is snapped into the wedge-shaped groove 2, and a double pulley 11 is installed inside the lower end of the wind baffle 8. In this embodiment, the lower end of the fan material 1 is connected to the double pulley 11 through the wind baffle 8, so that the double pulley 11 can limit the lower part of the door leaf while the wind baffle 8 can block the gap at the lower end of the door leaf, thereby achieving a wind-blocking effect. Moreover, the fan material 1 and the wind baffle 8 are connected by the wedge-shaped groove 2, which makes the tightness between the fan material 1 and the wind baffle 8 higher, preventing loosening and extending the service life compared to the traditional screw connection structure.
[0017] In this embodiment, the upper end of the wind baffle 8 is provided with a wedge 5, and the inner walls on both sides of the wedge groove 2 are provided with inclined surfaces 4 corresponding to the outer walls on both sides of the wedge 5. The spacing between the groove walls of the wedge groove 2 gradually increases from top to bottom. Under the gravity of the fan material 1, the inclined surfaces on the wedge groove 2 and the wedge 5 are more compact, preventing loosening between the fan material 1 and the wedge 5, and making the structure more compact.
[0018] The wedge-shaped groove 2 has a slot 3 at its upper end. The opening of the slot 3 faces downward and the width of the opening is smaller than the width of the slot 3. The wedge block 5 has a locking plate 7 at its upper end. The two sides of the locking plate 7 and the wedge block 5 form a locking slot 6. The inner wall of the opening of the slot 3 is locked in the locking slot 6, and the locking plate 7 is locked in the slot 3. This allows the wind deflector 8 to be installed at the lower end of the fan material 1 through the structure of the locking plate 7 and the slot 3. The whole structure is more solid and stable.
[0019] It is worth noting that the wedge 5, the retaining plate 7, and the wind baffle 8 in this embodiment are an integral structure, resulting in higher structural strength. The length of the wedge 5 is the same as the length of the door panel 1, allowing the wind baffle 8 to cover the gap at the bottom of the door panel.
[0020] It is worth noting that the lower end of the wind deflector 8 in this embodiment is integrally provided with a pulley groove 9, and a pulley seat 10 is fixedly installed in the pulley groove 9, with double pulleys 11 installed in the pulley seat 10.
[0021] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A pendulum preventing lower wheel structure comprising a fan material (1), characterized in that, The lower end of the fan material (1) is provided with a wedge-shaped slot (2), a wind deflector (8) is connected in the wedge-shaped slot (2), and the lower end of the wind deflector (8) is internally provided with a double pulley (11).
2. The anti-sway undercarriage structure according to claim 1, characterized in that, The upper end of the wind deflector (8) is provided with a wedge block (5), and the inner walls of the two sides of the wedge-shaped slot (2) are provided with inclined surfaces (4) corresponding to the outer walls of the two sides of the wedge block (5).
3. The anti-sway undercarriage structure according to claim 2, wherein The upper end of the wedge-shaped slot (2) is provided with a clamping groove (3), the opening of the clamping groove (3) faces downward, the width of the opening is smaller than the width of the clamping groove (3), the upper end of the wedge block (5) is provided with a clamping plate (7), the two sides between the clamping plate (7) and the wedge block (5) form a clamping opening (6), the opening inner wall of the clamping groove (3) is clamped in the clamping opening (6), and the clamping plate (7) is clamped in the clamping groove (3).
4. The anti-sway undercarriage structure according to claim 2, wherein The wedge block (5), the clamping plate (7) and the wind deflector (8) are of an integrated structure.
5. The anti-sway undercarriage structure of claim 1, wherein The lower end of the wind deflector (8) is integrally provided with a pulley groove (9), the pulley groove (9) is fixedly provided with a pulley seat (10) inside, and the double pulley (11) is installed in the pulley seat (10).
6. The anti-sway undercarriage structure according to claim 2, wherein The length of the wedge block (5) is the same as the length of the fan material (1).
Citation Information
Patent Citations
Anti-swing structure used below hanging and pushing door
CN214303399U