Novel glass door slow descent structure

Abstract

This invention relates to the field of refrigeration equipment technology, specifically a novel glass door slow-closing structure, including a track-type cabinet opening component and a glass door end cover component. The glass door end cover component includes a glass door end cover, a universal ball cover, a universal ball assembly, and a universal ball track. The universal ball assembly is located between the universal ball cover and the universal ball track. Symmetrically distributed rotor balls are provided on both the upper and lower sides of the universal ball assembly. The rotor balls roll in cooperation with the universal ball cover and the universal ball track to achieve multi-directional free rotation. The universal ball assembly has a horizontal translational degree of freedom within the universal ball track to adapt to track change requirements. This novel glass door slow-closing structure completely abandons the pneumatic piston damping structure, using a purely mechanical track and universal ball to achieve slow closure. This eliminates problems such as aging of seals and attenuation of damping media at the source, ensuring a constant damping effect over long-term use and preventing the safety hazard of the door falling rapidly.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and more specifically, to a novel glass door slow-closing structure. Background Technology

[0002] Horizontal refrigerated vending machines are widely used in outdoor and supermarket settings. Their glass doors are often angled, and when opened, they can easily fall rapidly due to their own weight, posing a safety hazard of injuring users. Therefore, the industry commonly uses a slow-closing structure to control the door's descent speed. In the prior art, utility model patent CN215913979U discloses a refrigeration and freezing device with a buffer structure. It uses a sliding groove and slider in combination, and adds a buffer component to achieve buffered movement of the glass door. This structure represents a relatively typical slow-closing implementation method in this field.

[0003] However, the existing technologies have significant drawbacks: First, the buffer components mostly use pneumatic piston dampers, which are prone to wear and aging of the seals after long-term use, resulting in a continuous decrease in damping effect and difficulty in achieving stable slow closure. Second, the damping medium is significantly affected by low and high temperature environments. At low temperatures, the increased viscosity of the medium can cause the door to open and close slowly, while at high temperatures, the decreased viscosity results in insufficient buffering, preventing the door from closing reliably and affecting refrigeration efficiency and energy consumption. Third, piston dampers have many components, complex assembly, and high costs. They are also prone to jamming and failure in high-humidity cold chain environments, and their service life and stability cannot meet the long-term use requirements of horizontal refrigeration cabinets. Therefore, existing slow-closing structures are insufficient in terms of environmental adaptability, operational stability, service life, and cost control. There is an urgent need for a new type of slow-closing glass door structure that is simple in structure, unaffected by temperature, highly reliable, and inexpensive. Summary of the Invention

[0004] The purpose of this invention is to provide a novel glass door slow-closing structure to solve the problem mentioned in the background art that the buffer components mostly use pneumatic piston dampers, which are prone to wear and aging of the seals after long-term use, resulting in a continuous decrease in damping effect and difficulty in stably achieving slow closure.

[0005] To achieve the above objectives, the present invention provides a novel glass door slow-closing structure, including a track-type cabinet opening component and a glass door end cover component. The glass door end cover component includes a glass door end cover, a universal ball cover, a universal ball assembly, and a universal ball track. The universal ball assembly is located between the universal ball cover and the universal ball track. Symmetrically distributed rotor balls are provided on both the upper and lower sides of the universal ball assembly. The rotor balls roll in cooperation with the universal ball cover and the universal ball track to achieve multi-directional free rotation. The universal ball assembly has a horizontal translational degree of freedom within the universal ball track to adapt to track change requirements. The glass door end cover covers the outside of the universal ball assembly to achieve limiting protection and foreign object blocking. The track-type cabinet opening component is integrally injection molded with the cabinet opening body. The glass door end cover component is fixedly connected to the end of the glass door. The universal ball assembly and the track-type cabinet opening component roll in cooperation with each other on the track, and the slow-closing function of the glass door is achieved through track guidance.

[0006] This setup enables the creation of a glass door slow-descent system with no air pressure damping and a purely mechanical structure. It relies on the cooperation of the track and the universal ball assembly to achieve slow descent, eliminating the influence of temperature environment, and features structural stability, strong protection, and long service life.

[0007] As a preferred embodiment of the present invention, the track-type cabinet opening component is provided with a lower track inlet, a left track inlet, a left track, a left track connection, a left track outlet, an upper track inlet, a right track inlet, a right track, a right track connection, and a right track outlet. The lower track inlet, the left track, and the right track are sequentially connected to form a guide path for the directional movement of the universal ball assembly. The left track outlet is connected to the upper section of the right track, and the right track outlet is connected to the lower section of the left track. The track is provided with a stepped protrusion structure to realize the unidirectional limiting guidance of the universal ball assembly. The right track is provided with a wave-like tortuous section to generate motion damping through structural cooperation.

[0008] This feature creates a fully closed directional guide track, uses a stepped protrusion structure to achieve unidirectional anti-misdirection limiting, and generates damping force through wave-like zigzag sections to stably control the door's falling speed.

[0009] As a preferred embodiment of the present invention, the lower section of the track entrance is provided with a downwardly inclined guide slope. The inclined guide slope is used to reduce the frictional loss when the universal ball assembly enters the track. Both the left and right track entrances are provided with arc-shaped transition sections. The arc-shaped transition sections are used to smoothly guide the universal ball assembly into the corresponding track.

[0010] This feature reduces friction and wear between the omnidirectional ball assembly and the track inlet, improves opening and closing smoothness, avoids jamming, and ensures stable movement.

[0011] As a preferred embodiment of the present invention, both the left and right track connection points are provided with upwardly inclined lifting sections, which are used to lift the omnidirectional ball assembly to the connection part of the corresponding track. Both the left and right track exits are provided with stepped limiting structures, which are used to prevent the omnidirectional ball assembly from accidentally entering a non-target track.

[0012] This setting enables the omnidirectional ball assembly to smoothly switch between different tracks, prevents path deviation, and ensures that the door opening and closing actions are completed according to the preset trajectory.

[0013] As a preferred embodiment of the present invention, the universal ball cover is fixedly connected to the glass door end cover, and the inner side of the universal ball cover is provided with a rolling groove adapted to the rotor ball. The rolling groove is used to limit the rolling path of the rotor ball. The universal ball track is integrally formed with the glass door end cover, and the inner side of the universal ball track is provided with a translation guide groove adapted to the universal ball assembly.

[0014] This setting can precisely constrain the movement trajectory of the rotor balls and the universal ball assembly, improve the matching accuracy, and at the same time simplify the structure and enhance the overall strength.

[0015] As a preferred embodiment of the present invention, the inner wall of the track of the track-type cabinet component is provided with a wear-resistant coating. The wear-resistant coating is used to reduce the wear of the track and the universal ball assembly. The stepped protrusion structure is integrally formed with the track body, and the limiting surface of the stepped protrusion structure is set perpendicular to the movement direction of the universal ball assembly.

[0016] This feature improves track wear resistance, extends overall service life, and ensures the strength and reliability of the limiting structure.

[0017] As a preferred embodiment of the present invention, the curvature of the wavy section of the right track is adapted to the gravity of the glass door, and the curvature is used to adjust the damping magnitude to control the descent speed. The tilt angle of the lifting section is adapted to the track changing height, and the tilt angle is used to ensure that the universal ball assembly can smoothly switch tracks.

[0018] This setting can match the appropriate slow-descent speed according to the weight of the glass door, achieving smooth slow-descent while ensuring smooth and seamless track switching.

[0019] As a preferred embodiment of the present invention, a sealing layer is provided inside the glass door end cover. The sealing layer is used to prevent external moisture and dust from entering the mating area of ​​the universal ball assembly.

[0020] This feature improves the sealing of the end cap, preventing moisture and dust from entering and causing moving parts to jam, thus enhancing the stability of the structure in cold chain high-humidity environments.

[0021] As a preferred embodiment of the present invention, the rotor balls are arranged in two symmetrical rows on both sides of the universal ball assembly, and are made of wear-resistant damping material. The wear-resistant damping material is used to improve rolling stability and damping effect.

[0022] This setting ensures that the omnidirectional ball assembly is subjected to uniform force and rolls stably, while also enhancing the damping effect and improving the consistency of slow descent.

[0023] As a preferred embodiment of the present invention, the omnidirectional ball assembly includes a housing with an internal cavity, and a ball is placed inside the housing.

[0024] This feature simplifies the structure of the omnidirectional ball assembly, ensures rotational flexibility, reduces processing and assembly difficulty, and improves structural reliability.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this new type of glass door slow-closing structure, the pneumatic piston damping structure is completely abandoned. Instead, a pure mechanical track and universal ball are used to achieve slow closure. This eliminates problems such as aging of seals and attenuation of damping medium from the root. The damping effect remains constant over long-term use, and there is no safety hazard of the door falling rapidly.

[0026] 2. In this new type of glass door with a slow-closing structure, the slow-closing function is achieved by the cooperation of the track contour and gravity. It is not affected by changes in ambient temperature. In complex scenarios such as low-temperature cold chain and high-temperature outdoor, it can maintain a stable slow-closing speed. The door opens and closes smoothly and completely, ensuring the energy consumption and cooling efficiency of the refrigeration equipment.

[0027] 3. In this new type of glass door slow-closing structure, the universal ball component adopts a design with rolling coordination and horizontal translation freedom. Combined with the guide slope, arc transition section and stepped limit structure, the movement friction is small and the operation is smooth and without jamming. With wear-resistant materials and structure, the wear of components is significantly reduced and the overall service life is extended.

[0028] 4. In this new type of glass door slow-closing structure, the track-type cabinet opening is made of integrated injection molding, which reduces the number of parts and simplifies the assembly process, effectively reducing production and maintenance costs; the sealing structure of the glass door end cover can prevent water vapor and dust from entering, improving the adaptability and reliability of the structure in high humidity and dusty environments.

[0029] 5. The new glass door slow-closing structure is stable and durable, and is suitable for long-term high-frequency use scenarios. It completely solves the defects of traditional slow-closing structures, such as poor safety, insufficient stability and weak environmental adaptability, and greatly improves the user experience and market competitiveness of horizontal refrigerated vending machines. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the glass door end cap component in this invention; Figure 3 This is a schematic diagram of the structure of the track-type cabinet opening component in this invention; Figure 4 This is a schematic diagram of the external structure of the universal ball assembly in this invention; Figure 5 This is a schematic diagram of the internal structure of the universal ball assembly in this invention. The meanings of the labels in the diagram are as follows: 1. Rail-mounted cabinet door components; 11. Lower rail entrance; 12. Left rail entrance; 13. Left rail; 14. Left rail connection; 15. Left rail exit; 16. Upper rail entrance; 17. Right rail entrance; 18. Right rail; 19. Right rail connection; 20. Right rail exit; 2. Glass door end cover components; 21. Glass door end cover; 22. Universal ball cover; 23. Universal ball assembly; 231. Rotor ball; 232. Housing; 233. Ball; 24. Universal ball track; 3. Glass door end. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This invention provides a novel glass door slow-closing structure, such as... Figures 1-5 As shown, the device includes a track-type cabinet opening component installed in the cabinet body, a glass door end cap component connected to the glass door, and a universal ball assembly that works together to achieve slow-descent movement. The track-type cabinet opening component 1 is fixedly installed at the cabinet opening position of the refrigeration cabinet and adopts an integrated injection molding structure to form a directional guiding and damping motion track. The glass door end cap component 2 is fixedly installed at the end 3 of the glass door to support and protect the universal ball assembly 23, while providing translational and rotational space for the universal ball assembly 23. The universal ball assembly 23 is located inside the glass door end cap component 2 and forms a rolling engagement with the track-type cabinet opening component 1 to achieve directional movement and slow-descent control during the opening and closing of the glass door.

[0033] By dividing the structure into a track-type cabinet opening component 1, a glass door end cap component 2, and a universal ball assembly 23, modular assembly and stable movement are achieved. The overall structure has no pneumatic damping components, resulting in strong environmental adaptability and a long service life. The track-type cabinet opening component 1 is integrally molded with the cabinet opening, ensuring high assembly precision and stable structural strength. The glass door end cap component 2 provides full protection for the universal ball assembly 23, preventing foreign object intrusion and component detachment. The universal ball assembly 23 rolls in conjunction with the track, relying on the track structure for slow descent, eliminating the need for additional damping elements and improving overall operational reliability.

[0034] In this embodiment, the track-type cabinet opening component 1 is integrally injection molded with the cabinet opening of the refrigeration cabinet. The track-type cabinet opening component 1 forms a continuous left track 13 and a right track 18 inside. The track is provided with a stepped protrusion structure and a wave-shaped tortuous section. The glass door end cover component 2 is fixed to the glass door end 3. The universal ball assembly 23 is limited to the inside of the glass door end cover 21 and can be horizontally translated and rotated in multiple directions.

[0035] The integrated molding of the track-type cabinet opening component 1 ensures precise track positioning, enhances overall structural strength, and avoids assembly errors affecting movement coordination; the glass door end cap component 2 is fixed to the glass door end 3, facilitating precise alignment with the cabinet opening track; the universal ball assembly 23 has dual degrees of freedom of translation and rotation, adapting to track change requirements and ensuring smooth and unobstructed opening and closing of the door.

[0036] Specifically, the track-type cabinet component 1 is provided with a lower track entry 11, a left track entry 12, a left track 13, a left track connection 14, a left track exit 15, an upper track entry 16, a right track entry 17, a right track 18, a right track connection 19, and a right track exit 20. The track segments are connected in sequence to form a closed guide path.

[0037] The multi-segment track structure of the track-type cabinet door component 1 can form a complete directional movement path, so that the universal ball component 23 moves according to the preset trajectory, ensuring that the opening and closing actions of the glass door are standardized and avoiding movement deviation that could cause jamming or incomplete door closure.

[0038] Furthermore, the lower section entrance 11 of the track is provided with a downwardly inclined guide ramp, and the left track entrance 12 and the right track entrance 17 are both provided with arc-shaped transition sections to guide the omnidirectional ball assembly 23 to smoothly enter the corresponding track.

[0039] The inclined guide slope and the arc transition section work together to reduce the frictional resistance when the universal ball assembly 23 enters the track, reduce component wear, improve the smoothness of door opening and closing, and avoid problems such as jamming and abnormal noise.

[0040] Furthermore, both the left track connection 14 and the right track connection 19 are provided with upwardly inclined lifting sections, and both the left track outlet 15 and the right track outlet 20 are provided with stepped limiting structures to realize track switching and unidirectional limiting.

[0041] The lifting section can smoothly lift the omnidirectional ball assembly 23 to the corresponding track connection position. The stepped limiting structure can prevent the omnidirectional ball assembly 23 from accidentally entering a non-target track, ensuring a unique movement path and improving the stability and accuracy of the slow descent action.

[0042] Furthermore, the right track 18 is equipped with a wave-shaped bend section, which is adapted to the weight of the glass door and is used to generate damping force through structural cooperation to achieve slow descent.

[0043] The wave-shaped bend section can utilize the gravity of the glass door to create motion damping, control the movement speed of the universal ball assembly 23, and thus achieve a smooth and slow descent of the glass door with a constant damping effect that is unaffected by environmental factors.

[0044] Furthermore, the glass door end cover component 2 includes a glass door end cover 21, a ball joint cover 22, and a ball joint track 24. The glass door end cover 21 covers the outside of the ball joint assembly 23 to form a sealed protective structure.

[0045] The glass door end cover 21 and the universal ball cover 22 work together to form a fully enclosed protective structure, which can effectively block the intrusion of foreign objects such as water vapor and dust, prevent the universal ball assembly 23 from getting stuck due to pollution, and extend the service life of the structure.

[0046] Furthermore, the ball bearing cover 22 is fixedly connected to the glass door end cover 21. The inner side of the ball bearing cover 22 is provided with a rolling groove that is compatible with the rotor ball 231. The ball bearing track 24 is integrally formed with the glass door end cover 21 and is provided with a translation guide groove.

[0047] The rolling groove can limit the rolling path of the rotor ball 231, and the translation guide groove can constrain the horizontal translation range of the universal ball assembly 23. The dual limit ensures the precise movement of the universal ball assembly 23 and improves the overall fit accuracy and operational stability.

[0048] Furthermore, the omnidirectional ball assembly 23 has symmetrically distributed rotor balls 231 on both the upper and lower sides. The rotor balls 231 form a rolling fit with the omnidirectional ball cover 22 and the omnidirectional ball track 24 to achieve multi-directional free rotation.

[0049] The symmetrically arranged rotor balls 231 ensure that the universal ball assembly 23 is subjected to uniform force, and the multi-directional rotation can adapt to the bending and changing position of the track, ensuring smooth rolling and reducing motion friction and component wear.

[0050] Furthermore, the inner wall of the track of the track-type cabinet component 1 is provided with a wear-resistant coating, the stepped protrusion structure is integrally formed with the track body, and the limiting surface is set perpendicular to the movement direction of the universal ball assembly 23.

[0051] The wear-resistant coating can reduce the wear between the track and the rotor ball 231, and improve the track durability; the one-piece stepped protrusion structure has high strength and the vertical limiting surface has reliable limiting, preventing the universal ball assembly 23 from running out of position.

[0052] Furthermore, the curvature of the wave-like bend in the right track 18 matches the weight of the glass door, and the tilt angle of the lifting section is adapted to the track switching height, ensuring that the universal ball assembly 23 smoothly switches tracks.

[0053] The tortuous curvature that matches gravity provides appropriate damping, enabling a stable descent speed; the tilt angle that adapts to the track height ensures smooth track switching and improves the smoothness of the gate's operation.

[0054] Furthermore, a sealing layer is provided inside the glass door end cover 21. The sealing layer is attached to the inner wall of the glass door end cover 21 to prevent moisture and dust from entering the mating area of ​​the universal ball assembly 23.

[0055] The sealing layer can improve the internal airtightness of the end cap, effectively prevent moisture and dust from entering in the cold chain high humidity environment, avoid corrosion and jamming of the universal ball assembly 23, and improve the structural environmental adaptability.

[0056] Furthermore, the rotor balls 231 are arranged in two symmetrical rows and are made of wear-resistant damping material to improve rolling stability and slow-descent damping effect.

[0057] The symmetrical arrangement of the two rows makes the rotation smoother, and the wear-resistant damping material can balance the smoothness of rolling and the damping effect, ensuring a uniform and stable descent process and improving the user experience.

[0058] Furthermore, the omnidirectional ball assembly 23 includes a housing 232 with an internal cavity, and a ball 233 is placed inside the housing 232. The ball 233 rotates and engages with the housing 232, driving the rotor ball 231 to move synchronously.

[0059] The chambered housing 232 provides a stable rotation space for the ball 233. The ball 233 and the housing 232 cooperate flexibly, which can drive the rotor ball 231 to achieve multi-directional rotation, simplifying the structure while ensuring motion reliability.

[0060] When using the novel glass door slow-closing structure of the present invention, the equipment is first installed and deployed: the track-type cabinet opening component 1 is formed in the preset position of the refrigeration cabinet opening through an integrated injection molding process to ensure accurate track layout; the glass door end cover component 2 is fixedly installed on the end of the glass door 3 to ensure that the universal ball assembly 23 is accurately aligned with the track of the track-type cabinet opening component 1, and to ensure that the universal ball assembly 23 can smoothly enter the lower section entrance 11 of the track.

[0061] After the equipment is installed, structural debugging is carried out: manually open and close the glass door, observe the movement of the universal ball assembly 23 along the track, confirm that the universal ball assembly 23 can smoothly enter the track, smoothly switch the left track 13 and the right track 18 without jamming or deviation, and the slow descent speed is uniform and moderate. After debugging, it can be put into use.

[0062] When the glass door is opened, the omnidirectional ball assembly 23 enters the left track 13 along the lower section entrance 11 of the track, switches to the upper part of the right track 18 through the lifting section and track exit, and then disengages from the track, completing the door opening action; when the glass door is closed, the omnidirectional ball assembly 23 enters the right track 18 through the upper section entrance 16 of the track, generates damping and slow descent through the wave-like tortuous section, and then switches back to the lower section of the left track 13 through the lifting section and track exit, and finally disengages from the track to complete the door closing.

[0063] During the operation of the glass door, the rotor balls 231 of the universal ball assembly 23 continuously roll and cooperate with the track. The stepped protrusion structure ensures that the unidirectional operation does not deviate. The wave-shaped tortuous section stably provides damping force. The glass door end cover 21 and the sealing partition continuously protect the internal components, ensuring the long-term stable operation of the slow-descent structure.

[0064] After use, the glass door can close smoothly and slowly without any additional operation. If maintenance is required, the universal ball assembly 23 can be inspected or replaced by directly disassembling the glass door end cover component 2. The track-type cabinet opening component 1 does not need to be disassembled for maintenance. The entire equipment is easy to organize, and the entire equipment operation process is completed.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel glass door slow-closing structure, characterized in that: The system includes a track-type cabinet opening component (1) and a glass door end cover component (2). The glass door end cover component (2) includes a glass door end cover (21), a ball bearing cover (22), a ball bearing assembly (23), and a ball bearing track (24). The ball bearing assembly (23) is located between the ball bearing cover (22) and the ball bearing track (24). The ball bearing assembly (23) has symmetrically distributed rotor balls (231) on both its upper and lower sides. The rotor balls (231) roll in cooperation with the ball bearing cover (22) and the ball bearing track (24) to achieve multi-directional movement. The omnidirectional ball assembly (23) has a degree of freedom of translation in the horizontal direction within the omnidirectional ball track (24) to adapt to the track change requirements. The glass door end cap (21) covers the outside of the omnidirectional ball assembly (23) to achieve limit protection and foreign object blocking. The track-type cabinet opening component (1) is integrally injection molded with the cabinet opening body. The glass door end cap component (2) is fixedly connected with the glass door end (3). The omnidirectional ball assembly (23) and the track-type cabinet opening component (1) roll together on the track, and the glass door slow-down function is realized through track guidance.

2. The novel glass door slow-closing structure according to claim 1, characterized in that: The track-type cabinet component (1) is provided with a lower track entry (11), a left track entry (12), a left track (13), a left track connection (14), a left track exit (15), an upper track entry (16), a right track entry (17), a right track (18), a right track connection (19), and a right track exit (20). The lower track entry (11), the left track (13), and the right track (18) are connected in sequence to form a guide path for the omnidirectional ball assembly (23) to move in an orientation. The left track exit (15) is connected to the upper section of the right track, and the right track exit (20) is connected to the lower section of the left track. The track is provided with a stepped protrusion structure to realize the unidirectional limiting guidance of the omnidirectional ball assembly (23). The right track (18) is provided with a wave-shaped tortuous section to generate motion damping through structural cooperation.

3. The novel glass door slow-closing structure according to claim 2, characterized in that: The lower section entrance (11) of the track is provided with a downward inclined guide slope. The inclined guide slope is used to reduce the friction loss when the universal ball assembly (23) enters the track. The left track entrance (12) and the right track entrance (17) are both provided with arc-shaped transition sections. The arc-shaped transition sections are used to smoothly guide the universal ball assembly (23) into the corresponding track.

4. The novel glass door slow-closing structure according to claim 2, characterized in that: The left track connection (14) and the right track connection (19) are both provided with an upwardly inclined lifting section. The lifting section is used to lift the omnidirectional ball assembly (23) to the connection part of the corresponding track. The left track outlet (15) and the right track outlet (20) are both provided with a stepped limiting structure. The stepped limiting structure is used to prevent the omnidirectional ball assembly (23) from accidentally entering a non-target track.

5. The novel glass door slow-closing structure according to claim 1, characterized in that: The ball cover (22) is fixedly connected to the glass door end cover (21). The inner side of the ball cover (22) is provided with a rolling groove adapted to the rotor ball (231). The rolling groove is used to limit the rolling path of the rotor ball (231). The ball track (24) is integrally formed with the glass door end cover (21). The inner side of the ball track (24) is provided with a translation guide groove adapted to the ball assembly (23).

6. The novel glass door slow-closing structure according to claim 2, characterized in that: The inner wall of the track of the track-type cabinet component (1) is provided with a wear-resistant coating. The wear-resistant coating is used to reduce the wear of the track and the universal ball assembly (23). The stepped protrusion structure is integrally formed with the track body. The limiting surface of the stepped protrusion structure is set perpendicular to the movement direction of the universal ball assembly (23).

7. The novel glass door slow-closing structure according to claim 2, characterized in that: The undulating curvature of the right track (18) is adapted to the gravity of the glass door. The undulating curvature is used to adjust the damping magnitude to control the descent speed. The tilt angle of the lifting section is adapted to the track change height. The tilt angle is used to ensure that the universal ball assembly (23) smoothly switches tracks.

8. The novel glass door slow-closing structure according to claim 1, characterized in that: The glass door end cap (21) is provided with a sealing layer inside, which is used to prevent external moisture and dust from entering the mating area of ​​the universal ball assembly (23).

9. The novel glass door slow-closing structure according to claim 1, characterized in that: The rotor balls (231) are arranged in two symmetrical rows on both sides of the universal ball assembly (23), and are made of wear-resistant damping material. The wear-resistant damping material is used to improve rolling stability and damping effect.

10. The novel glass door slow-closing structure according to claim 1, characterized in that: The omnidirectional ball assembly (23) includes a housing (232) with an internal chamber, and a ball (233) is placed inside the housing (232).

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