Improved ceiling wheel device

Abstract

The utility model discloses an improved type upper hanging pulley device, including hanging pulley seat and two groups of sliding wheel groups, two groups of sliding wheel groups are arranged side by side on hanging pulley seat, and each group of sliding wheel groups includes two sliding wheels rotatably arranged on the both sides of the width direction of hanging pulley seat, still include support seat and connecting screw rod, and support seat is set up between two groups of sliding wheel groups, and it is downwardly extended and is equipped with the installation part of connecting door and window section bar to the lateral surface, and connecting screw rod penetrates support seat along vertical direction, and its upper end is connected with hanging pulley seat, and lower end is abutted with the lower part of support seat, and rotating connecting screw rod can adjust the interval between the lower surface of hanging pulley seat and the upper surface of support seat, to realize the height adjustment of sliding wheel group relative to support seat. The improved type upper hanging pulley device structure is more simplified, and the cost is lower, and the installation is more convenient, and can be better matched with track system, that is, track installs pulley group central design, and the pulley center is consistent with the vertical center line of door leaf, and the smoothness of folding door and window push and pull is obviously improved.

Description

Technical Field

[0001] This utility model relates to the technical field of doors and windows, specifically an improved hanging wheel device. Background Technology

[0002] Folding doors and windows are widely used in modern buildings due to their advantages such as space saving, low cost, convenient opening and stacking, and unobstructed view when open. These types of doors and windows typically rely on an upper hanging roller device installed on the upper door frame and a lower sliding roller on the lower door frame for joint support and sliding.

[0003] However, in practical applications, the following shortcomings have been found in the existing technical solutions: Complex structure and high cost: Existing technical solutions use a complete hinge assembly, including hinge brackets, hinge plates, hinge shafts, and a base plate, to connect to the door leaf below the pulley block. This structure has many components, which not only increases mold and material costs, but also increases the complexity of the assembly process and production costs.

[0004] Installation and debugging are inconvenient: The complex hinge structure makes the installation and height adjustment of the entire hanging wheel device relatively complicated, requiring high technical skills from the installers and affecting construction efficiency.

[0005] Limitations of matching the upper rail: The existing pulley assembly is installed on an eccentric track profile, offset from the vertical center line of the door leaf; such as Figure 1 As shown, L1 is the center line of the pulley system, and L2 is the vertical center line of the door leaf; this causes the door leaf to be subjected to unbalanced forces during the pushing, pulling and folding process, and there is room for optimization of the movement trajectory, which affects the smoothness and stability of the door leaf pushing and pulling.

[0006] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0007] To address the above-mentioned technical problems, this utility model provides an improved hanging wheel device with a simpler structure, lower cost, easier installation, and better compatibility with the track system. Specifically, the track-mounted pulley group is centrally designed, with the pulley center aligned with the vertical center line of the door leaf, significantly improving the smoothness of sliding folding doors and windows.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows: An improved upper hanging wheel device includes: Hanging wheel seat; At least two sets of sliding wheel groups are arranged side by side on the hanging wheel seat, and each set of sliding wheel groups includes two sliding wheels that are rotatably arranged on both sides of the width direction of the hanging wheel seat; A support base is disposed between two adjacent sets of the sliding wheel sets. The support base extends downward and has a mounting part on its side for connecting door and window profiles. A connecting screw passes through the support base vertically, with its upper end connected to the hanging wheel seat and its lower end abutting against the lower part of the support base; Rotating the connecting screw can adjust the distance between the lower surface of the hanging wheel seat and the upper surface of the support seat, thereby adjusting the height of the sliding wheel assembly relative to the support seat.

[0009] This improved hanging wheel device completely eliminates the complex hinge assembly (including hinge bracket, hinge plate, hinge shaft, etc.) in traditional hanging wheels by directly connecting the support base and the connecting screw, greatly reducing the number of parts and simplifying the structure; it also reduces material costs, mold costs and assembly costs.

[0010] The overall height of the hanging wheel base can be directly adjusted by rotating a single connecting screw. Since the hanging wheel base supports the sliding wheel assembly, the height of the sliding wheel assembly is adjusted accordingly, achieving stepless, linear fine-tuning. This makes alignment and leveling during installation, as well as subsequent compensation adjustments due to door sagging, very simple and quick, reducing the technical requirements for installers and improving construction efficiency.

[0011] In a further optimized design, the mounting part includes slots on the front and rear sides and several fixing holes on the sides. The slots engage with the raised edges on the door and window profiles to achieve lateral positioning, and the fixing holes fix the support to the door and window profiles using fasteners.

[0012] The slot design allows the support base to achieve precise lateral positioning with the raised edge on the profile through a simple vertical insertion, preventing lateral offset during installation and enabling rapid pre-installation. The combination of slot positioning and screw tightening provides a scientific installation process of positioning first and then locking. This ensures the mechanical strength of the connection, making the installation more secure and reliable.

[0013] In a further optimized design, the roller seat is provided with a receiving cavity, a spring seat is provided inside the receiving cavity, a spring member is sleeved on the spring seat, and the spring member is constrained within the receiving cavity by the spring seat; The upper end of the connecting screw is connected to the spring seat. The spring is compressed under the weight of the door and window and has a downward elastic force, so that the sliding wheel assembly always keeps in contact with the upper track during the movement.

[0014] The spring is compressed under the weight of the door and continuously provides downward elastic force to the sliding roller assembly, allowing the roller assembly to fit tightly and flexibly against the track at any position. This eliminates rigid collisions and gap noises caused by uneven track, tolerances, or slight deformation, resulting in a quiet and smooth sliding door.

[0015] The spring's cushioning effect distributes and buffers most of the dynamic load on the door leaf, significantly reducing the pressure transmitted to the sliding rollers and thus extending the service life of the sliding rollers and track. Even if the height is adjusted via the connecting screw, the spring's elasticity automatically compensates for the adjustment margin, ensuring that the fit between the sliding roller assembly and the track is not lost due to height adjustment, making the adjustment function more practical and effective.

[0016] In a further optimized design, the roller seat is equipped with at least two limiting screws. These screws press against the edge of the spring seat, thus confining the spring seat within the receiving cavity. The limiting screws provide a direct, mechanical, and rigid restraint on the spring seat, effectively preventing it from accidentally dislodging from the cavity when the spring fully rebounds or the device is inverted, thereby enhancing the product's safety and reliability.

[0017] In a further optimized design, the bottom of the hanging wheel base is equipped with at least one rotatable positioning wheel. The positioning wheel is embedded in the upper track profile and conforms to its front and rear inner surfaces to provide guidance, effectively limiting the back-and-forth swaying of the hanging wheel device during operation, and significantly improving the linear motion stability and overall rigidity of the door when it is pushed or pulled.

[0018] In a further optimized design, the number of support seats and their cooperating connecting screws is increased to two, arranged side-by-side between two adjacent sets of sliding wheel groups. The two support seats provide suspended support, resulting in more even and balanced force distribution on the door leaf, ensuring that even extra-wide or heavy-duty door leaves can operate smoothly and without jamming.

[0019] Compared with the prior art, the improved upper hanging wheel device of this utility model has the following technical advantages: 1. Simplified structure and reduced cost: The original complex hinge and hinge bracket assembly is eliminated, and a direct connection structure of support base and connecting screw is adopted, which significantly reduces the number of parts and reduces material and manufacturing costs.

[0020] 2. Easier installation and adjustment: The support base is equipped with slots and fixing holes, which can achieve quick pre-positioning and secure installation; the height of the hanging wheel can be infinitely linearly adjusted by rotating the connecting screw, making installation and debugging simple and efficient.

[0021] 3. Quieter and smoother operation: It has a spring buffer system, which makes the sliding wheel group always elastically fit the track, effectively absorbing vibration and noise; combined with the positioning wheel structure, it enhances guidance and stability, and the pushing and pulling process is smooth and stable.

[0022] 4. Better compatibility and adaptability: The support base can be directly installed on the central profile of the door leaf, resulting in a more reasonable structural layout; the combination of height adjustment and elastic support can better adapt to changes in track tolerance and door leaf weight, improving overall service life and reliability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram showing that the center line of the existing sliding wheel assembly in the background technology does not coincide with the vertical center line of the door leaf; Figure 2 This is an exploded view of the parts in the first specific embodiment of the improved upper hanging wheel device of this utility model; Figure 3 yes Figure 2 A 3D view showing the state after the explosion has been defused; Figure 4 yes Figure 3 Side view; Figure 5 yes Figure 4 AA section view; Figure 6 This is an exploded view of the parts in a specific second embodiment of the improved upper hanging wheel device of this utility model; Figure 7 yes Figure 6 A 3D view showing the state after the explosion has been defused; Figure 8 yes Figure 7 A sectional view; Figure 9 This is a schematic diagram showing that the center line of the sliding wheel group in the improved hanging wheel device of this utility model coincides with the vertical center line of the door leaf.

[0024] In the diagram: Hanging wheel seat 10, receiving cavity 11, sliding wheel group 20, sliding wheel 21, sliding wheel fixing shaft 22, support seat 30, mounting part 31, slot 32, fixing hole 33, connecting screw 40, spring seat 50, spring piece 60, limit screw 70, positioning wheel 80, positioning wheel fixing screw 81, upper track A, door leaf B. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0026] like Figures 2 to 5 As shown, this is the first embodiment of the improved upper hanging wheel device of the present invention; as Figures 6 to 8 As shown, this is the second embodiment of the improved upper hanging wheel device of the present invention.

[0027] like Figure 2 and Figure 3 As shown, the improved upper hanging wheel device of the first embodiment includes a hanging wheel seat 10 and two sets of sliding wheel groups 20. The two sets of sliding wheel groups 20 are arranged side by side on the hanging wheel seat 10. Each set of sliding wheel groups 20 includes two sliding wheels 21 that are rotatably disposed on both sides of the width direction of the hanging wheel seat 10. The sliding wheels 21 on both sides are connected to the hanging wheel seat 10 through a pulley fixing shaft 22.

[0028] The improved upper hanging wheel device also includes a support base 30 and a connecting screw 40. The support base 30 is disposed between two adjacent sets of sliding wheel groups 20. The support base 30 extends downward and has a mounting part 31 for connecting door and window profiles on its side. The connecting screw 40 passes through the support base 30 in a vertical direction. Its upper end is connected to the hanging wheel seat 10, and its lower end abuts against the lower part of the support base 30. Rotating the connecting screw 40 can adjust the distance between the lower surface of the hanging wheel seat 10 and the upper surface of the support base 30, so as to realize the height adjustment of the sliding wheel group 20 relative to the support base 30.

[0029] This improved hanging wheel device completely eliminates the complex hinge assembly (including hinge bracket, hinge plate, hinge shaft, etc.) in traditional hanging wheels through the direct connection between the support base 30 and the connecting screw 40, greatly reducing the number of parts and simplifying the structure; it also reduces material costs, mold costs and assembly costs.

[0030] Rotating a single connecting screw 40 directly adjusts the overall height of the hanging wheel base 10. Since the hanging wheel base 10 supports the sliding wheel assembly 20, the height of the sliding wheel assembly 20 is adjusted, achieving stepless, linear fine-tuning. This makes alignment and leveling during installation, as well as subsequent compensation adjustments due to door leaf sagging, very simple and quick, reducing the technical requirements for installers and improving construction efficiency.

[0031] like Figure 2 and Figure 5 As shown, the mounting part 31 of the support base 30 includes a slot 32 provided on the front and rear sides and a plurality of fixing holes 33 provided on its side. Tool holes are provided on the opposite side of the fixing holes 33. The slot 32 engages with the protruding edge on the door and window profile to achieve lateral positioning. The fixing holes 33 fix the support base 30 to the door and window profile by fasteners.

[0032] The slot 32 design allows the support base 30 to achieve precise lateral positioning with the protruding edge on the profile through a simple vertical insertion action, preventing lateral displacement during installation and enabling rapid pre-installation. The combination of slot 32 positioning and screw tightening provides a scientific installation process of positioning first and then tightening. This ensures the mechanical strength of the connection, making the installation more secure and reliable.

[0033] like Figure 2 and Figure 3 As shown, the roller seat 10 has a receiving cavity 11, and a spring seat 50 is provided inside the receiving cavity 11. A spring member 60 is sleeved on the spring seat 50, and the spring member 60 is restricted within the receiving cavity 11 by the spring seat 50. The upper end of the connecting screw 40 is connected to the spring seat 50. The spring member 60 is compressed under the weight of the door and window, and has a downward elastic force, so that the sliding wheel assembly 20 always keeps in contact with the upper track A during the movement (e.g., Figure 9 ).

[0034] The spring 60 is compressed under the weight of the door leaf and continuously provides a downward elastic force to the sliding wheel assembly 20, allowing the sliding wheel assembly 20 to fit tightly and flexibly against the upper track A at any position. This eliminates rigid collisions and gap noises caused by uneven track, tolerances, or slight deformation, achieving a quiet and smooth sliding door leaf.

[0035] The spring's cushioning effect distributes and buffers most of the dynamic load on the door leaf, significantly reducing the pressure transmitted to the sliding rollers and thus extending the service life of the sliding rollers and sliding rails. Even if the height is adjusted via the connecting screw 40, the spring's elasticity can automatically compensate for the adjustment margin, ensuring that the fit between the sliding roller assembly 20 and the track is not lost due to height adjustment, making the adjustment function more practical and effective.

[0036] like Figure 2 and Figure 3 As shown, the roller seat 10 is provided with two limiting screws 70. The limiting screws 70 press against the edge of the spring seat 50 to limit the spring seat 50 within the receiving cavity 11. The limiting screws 70 constitute a direct, mechanical, hard limit on the spring seat 50, which can absolutely prevent the spring seat 50 from accidentally coming out of the receiving cavity when the spring fully rebounds or the device is inverted, thus improving the safety and reliability of the product.

[0037] like Figure 2 As shown, the bottom of the hanging wheel base 10 is provided with two rotatable positioning wheels 80, which are fixedly connected to the bottom of the hanging wheel base 10 by positioning wheel fixing screws 81. The positioning wheels 80 are embedded in the upper track profile and fit against its front and rear inner surfaces to play a guiding role, which can effectively limit the back and forth swaying of the hanging wheel device during operation, and greatly improve the linear motion stability and overall rigidity of the door when it is pushed and pulled.

[0038] like Figures 6 to 8 As shown, in the improved upper hanging wheel device of the second embodiment, there are two support seats 30 and two connecting screws 40 that cooperate with them, which are arranged side by side between two adjacent sets of sliding wheel groups 20. The hanging wheel seat 10 is provided with two receiving cavities 11, and each of the two receiving cavities 11 is provided with a spring seat 50, and a spring member 60 is sleeved on each spring seat 50; the upper end of each connecting screw 40 is connected to the corresponding spring seat 50; each spring seat 50 is pressed against its edge by two limiting screws 70 so that the spring seat 50 is limited to the receiving cavity 11.

[0039] Two support bases with 30mm hoisting support make the force on the door leaf more even and balanced, ensuring that even extra-wide or heavy door leaves can operate smoothly and without jamming.

[0040] like Figure 9As shown, in the improved hanging wheel device of this utility model, the center line of the sliding wheel group 20 coincides with the vertical center line of the door leaf B; the overall structure of the hanging wheel device is simpler, the cost is lower, the installation is more convenient, and it can be better matched with the track system. That is, the track-mounted pulley group is designed in the center, and the center of the pulley is consistent with the vertical center line of the door leaf, which significantly improves the smoothness of pushing and pulling folding doors and windows.

[0041] In summary, as described in the specification and figures, this utility model has been manufactured into actual samples and subjected to multiple use tests. The test results demonstrate that this utility model achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of this utility model. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this utility model, without departing from the scope of the technical features and similar features disclosed in this utility model, are all within the protection scope of this utility model.

Claims

1. An improved upper hanging wheel device, characterized in that, include: Hanging wheel seat (10); At least two sets of sliding wheel groups (20) are arranged side by side on the hanging wheel seat (10), and each set of the sliding wheel group (20) includes two sliding wheels (21) that are rotatably arranged on both sides of the width direction of the hanging wheel seat (10). A support base (30) is disposed between two adjacent sets of sliding wheel groups (20). The support base (30) extends downward and has an installation part (31) on its side for connecting door and window profiles. A connecting screw (40) passes through the support base (30) in a vertical direction. Its upper end is connected to the hanging wheel base (10), and its lower end abuts against the lower part of the support base (30). Rotating the connecting screw (40) can adjust the distance between the lower surface of the hanging wheel seat (10) and the upper surface of the support seat (30) to achieve height adjustment of the sliding wheel group (20) relative to the support seat (30).

2. The improved upper hanging wheel device according to claim 1, characterized in that, The mounting part (31) includes a slot (32) provided on the front and rear sides and a plurality of fixing holes (33) provided on its side. The slot (32) engages with the protruding edge on the door and window profile to achieve lateral positioning. The fixing holes (33) fix the support (30) to the door and window profile by fasteners.

3. The improved upper hanging wheel device according to claim 1 or 2, characterized in that, The wheel seat (10) is provided with a receiving cavity (11), and a spring seat (50) is provided in the receiving cavity (11). A spring member (60) is sleeved on the spring seat (50), and the spring member (60) is restricted in the receiving cavity (11) by the spring seat (50). The upper end of the connecting screw (40) is connected to the spring seat (50). The spring (60) is compressed under the gravity of the door and window and has a downward elastic force so that the sliding wheel group (20) always keeps in contact with the upper track during the movement.

4. The improved upper hanging wheel device according to claim 3, characterized in that, The roller seat (10) is provided with at least two limiting screws (70), which press against the edge of the spring seat (50) so that the spring seat (50) is limited within the accommodating cavity (11).

5. The improved upper hanging wheel device according to claim 1, characterized in that, The bottom of the hanging wheel seat (10) is provided with at least one rotatable positioning wheel (80).

6. The improved upper hanging wheel device according to claim 1, characterized in that, The number of the support base (30) and the connecting screw (40) that cooperate with it is two, and they are arranged side by side between two adjacent sets of the sliding wheel groups (20).

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