Hidden type auxiliary guide wheel structure of water dispenser tray

Abstract

The utility model discloses a hidden auxiliary guide wheel structure for a tray of a water dispenser, which relates to the technical field of water dispensers and comprises a guide module used for guiding the tray to slide and an auxiliary wheel set used for being matched with the guide module to support the tray. The guide module comprises two guide sliding rails arranged on the two sides of a bottom plate of the containing box correspondingly, and two guide sliding blocks arranged at the end, away from a box door of the containing box, of the tray. The auxiliary wheel set comprises a fixed wheel frame and a supporting wheel, the supporting wheel is arranged at the end, close to the box door of the containing cavity, of the tray through the fixed wheel frame, the supporting wheel can support the tray when the tray slides through mutual cooperation of the guide module and the auxiliary wheel set, and even if full-load barreled water is put in, the supporting wheel can not be damaged. The gravity center of the water dispenser does not move forwards, so that the water dispenser topples forwards, the tray is not prone to being bent, the influence of barreled water on sliding of the tray can be reduced, and the sliding stability and durability of the tray can be improved.

Description

Technical Field

[0001] The utility model relates to the field of water dispensers, in particular to a hidden auxiliary guide wheel structure of a tray of a water dispenser. Background Art

[0002] With the improvement of living standards, people have higher requirements for the quality and convenience of drinking water, so water dispensers have emerged. Water dispensers can be divided into direct drinking water dispensers and bottled water dispensers based on the water source. Bottled water dispensers are widely used in homes, offices, and various other places due to their simple structure, low cost, low installation requirements, and high adaptability. Bottled water dispensers can also be divided into top-mounted dispensers, where the bottled water is installed on the top of the dispenser body, and bottom-mounted dispensers, where the bottled water is placed at the bottom of the dispenser body. Bottom-mounted dispensers do not require lifting when changing the bottled water, making water changes more convenient than top-mounted dispensers. Moreover, because the bottled water in bottom-mounted dispensers is placed upright, the possibility of leaks is greatly reduced.

[0003] The water changing process of a traditional bottom-mounted water dispenser is generally to place the bottled water in front of the placement box at the bottom of the water dispenser. Since there is a placement cavity inside the placement box for accommodating the bottled water, the water pipe of the water dispenser is generally inserted into the bottled water and then the bottled water is pushed into the placement cavity. The bottled water is considered to be loaded only after the cabinet door of the placement box is closed. The whole replacement process is laborious and troublesome. Therefore, a new bottom-mounted water dispenser with a sliding tray has also been introduced on the market. For example, a bottom-mounted water dispenser in the prior art, refer to Figure 1 and Figure 2 The dispenser comprises a main body, a storage box disposed below the main body, a storage cavity for accommodating bottled water, a tray for supporting the bottled water disposed within the cavity, and a slidably connected tray to the bottom plate of the storage box. Specifically, a slider is disposed on the bottom plate of the storage box, and a slide rail is disposed on the bottom side of the tray, which is slidably connected to the slider. The slide rail slides on the slider, making it easier and more convenient to pull the tray and bottled water out of or into the storage cavity, further simplifying the water changing process.

[0004] However, during long-term use, it was found that when the tray was slid out, the part of the tray that extended out of the placement cavity was completely suspended in the air. Especially after replacing the new bottled water, the fully loaded bottled water could easily bend the tray and directly affect the sliding connection between the linear slide rail and the fixed slider, resulting in a decrease in the sliding stability of the tray. Over time, the tray became more difficult to slide or even impossible to slide. Utility Model Content

[0005] In order to reduce the impact of a fully loaded bottled water on the sliding of the tray inside the water dispenser, ensure the sliding stability of the tray at the bottom of the water dispenser, and increase the service life of the tray of the water dispenser, the present application provides a hidden auxiliary guide wheel structure for the tray of the water dispenser.

[0006] The present application provides a hidden auxiliary guide wheel structure for a water dispenser tray, which adopts the following technical solutions:

[0007] A hidden auxiliary guide wheel structure for a water dispenser tray, comprising a guide module for guiding the tray to slide, and an auxiliary wheel assembly for cooperating with the guide module to support the tray;

[0008] The guide module includes two sets of linear slide rails and two sets of guide sliders. The two sets of linear slide rails are respectively arranged on both sides of the bottom plate of the placement box and are symmetrical to each other along the central axis of the bottom plate. The two sets of guide sliders are both arranged on the side of the tray facing the bottom plate and are located at the end of the tray away from the box door of the placement box. The two sets of guide sliders are respectively slidably connected to the two sets of linear slide rails.

[0009] The auxiliary wheel assembly includes a fixed wheel frame, a support wheel and a folding component, wherein the fixed wheel frame and the folding component are both arranged on the side of the tray facing the bottom plate and are located at the end of the tray close to the box door of the placement box, wherein one end of the fixed wheel frame is hinged to the tray, and the support wheel is rotatably arranged at the end of the fixed wheel frame away from the tray, and the folding component is used to fold the support wheel and store it in the placement cavity of the placement box. Specifically, the folding component can fold the fixed wheel frame and restore it to a vertical state;

[0010] A slope is provided on one end of the bottom plate close to the box door, and when the tray slides in or out of the storage box, the support wheels can slide along the slope.

[0011] By adopting the above technical solution, when the bottled water needs to be replaced, the guide slider and the linear slide rail slide against each other, allowing the tray and the empty bottled water to slide out of the placement cavity. As the tray slides outward from the placement cavity, the support wheels first slide along the slope and gradually return to a vertical position via the folding member. As a result, the end of the tray that has slid out of the placement cavity is supported by the auxiliary support wheel assembly, while the end that has not slid out of the placement cavity is supported by the guide slider and the guide rail. This ensures that the tray remains fully supported throughout its sliding process. Even after a full bottled water is subsequently replaced, the center of gravity of the water dispenser does not shift forward, causing it to tip forward. The full bottled water also does not easily bend the tray, effectively reducing the impact of the full bottled water on the tray's sliding motion and improving the tray's sliding stability and durability. Furthermore, after the bottled water is replaced, the support wheels slide along the slope with the tray and into the placement cavity. The fixed wheel frame is gradually lifted and folded upward by the slope, allowing the auxiliary wheel assembly to fold and hide within the placement cavity, improving the dispenser's appearance.

[0012] Optionally, the folding component includes a tension spring frame and a tension spring, the tension spring frame is arranged on the side of the fixed wheel frame away from the box door, the fixed wheel frame is provided with a first cross bar, the tension spring frame is provided with a second tension spring, and the two ends of the tension spring are respectively connected to the first cross bar and the second cross bar.

[0013] By adopting the above technical solution, when the pallet slides into the placement cavity, the support wheels slide in along the slope and are gradually lifted upward by the slope, thereby folding the fixed wheel frame. At this time, the tension spring of the folding component is stretched and stores a certain amount of elastic potential energy. When the pallet slides out of the placement cavity, the tension spring pulls the fixed wheel frame through the elastic potential energy, so that the support wheels are close to the slope, and the fixed wheel frame is gradually straightened as the pallet slides out, so as to fully support the pallet.

[0014] Optionally, the folding component further includes a wheel frame baffle, which is arranged on the side of the tray facing the bottom plate. The wheel frame baffle extends vertically downward and is used to prevent the fixed wheel frame from folding toward the tension spring frame.

[0015] By adopting the above technical solution, the folding of the fixed wheel frame can be limited, which is beneficial to preventing the fixed wheel frame from being pulled to a position exceeding the vertical position by the tension spring, and is beneficial to ensuring sufficient support for the pallet.

[0016] Optionally, a hidden baffle is provided at the end of the slope, both ends of the hidden baffle are rotatably connected to the bottom plate, a first magnet is provided at the top of the hidden baffle, and a second magnet is provided at the bottom end of the box door, and the first magnet and the second magnet are magnetically attracted to each other.

[0017] By adopting the above technical solution, when the box door is opened, the hidden baffle loses the magnetic attraction of the second magnet, and will flip downward due to its own gravity, and cooperate with the slope to form an inclined plane to facilitate the support wheel to slide out of the placement cavity. When the box door is closed, the second magnet on the box door causes the hidden baffle to flip upward through magnetic attraction, thereby shielding and hiding the auxiliary wheel set.

[0018] Optionally, the guide slider is specifically a roller slider.

[0019] By adopting the above technical solution, since the guide slider needs to cooperate with the support wheel to support the pallet and bottled water, and the roller slider has a higher load-bearing capacity, the roller slider is selected as the guide slider, which is beneficial to greatly improve the load-bearing capacity of the guide slider. At the same time, it is also beneficial to prevent the weight of the bottled water from crushing the guide slider and reduce the impact on the sliding of the pallet.

[0020] Optionally, a driving module for driving the tray to slide is further included, wherein the driving module includes a driving motor, a steering reduction box, a screw rod and a driving slider;

[0021] A first drive bracket is provided at one end of the bottom plate away from the box door, the steering reduction box is installed below the first drive bracket, the drive motor is mounted directly above the steering reduction box through the first drive bracket, and the drive end of the drive motor extends vertically downward and is connected to the input end of the steering reduction box;

[0022] Two groups of second drive brackets are arranged on the base plate along the central axis. The screw rod is rotatably passed through the second drive bracket. The output end of the steering reduction box is connected to the screw rod. The drive slider is threadedly sleeved on the screw rod and is located between the two groups of second drive brackets. The top end of the drive slider is fixedly connected to the tray.

[0023] By adopting this technical solution, the tray is driven by a drive module to slide automatically, eliminating the need to manually pull the tray and bottled water out of or push it into the storage chamber of the storage box. This not only saves effort but also makes the process of changing bottled water simpler and more convenient. Secondly, the screw rod and drive slider work together to drive the tray to slide, which helps improve the stability of the tray during sliding.

[0024] Optionally, the driving slider is specifically a ball slider.

[0025] By adopting the above technical solution, since the driving slider does not need to bear the weight of the pallet and the fully loaded bottled water, a low-friction ball slider is selected to drive the pallet to slide. This is not only conducive to improving the smoothness of the driving slider sliding on the screw rod and improving the sliding stability of the pallet, but also helps to reduce the load on the driving motor and the steering reducer, thereby extending the service life of the driving motor.

[0026] Optionally, a crash pad is provided on one side of the second driving bracket facing the driving slider.

[0027] By adopting the above technical solution, when the driving slider slides toward any group of second driving brackets, the anti-collision pad can fully buffer and block the driving slider, preventing the driving slider from colliding with the second driving bracket due to the inertial rotation of the driving member, which is beneficial to preventing the second driving bracket or the driving slider from being damaged due to collision.

[0028] In summary, the technical solution of this application has at least one of the following beneficial effects:

[0029] 1. Through the mutual cooperation of the guide module and the auxiliary support wheel group, when the tray slides out of the placement cavity, the end of the tray that slides out of the placement cavity can be supported by the auxiliary wheel group, while the end that does not slide out of the placement cavity is supported by the guide slider and the guide rail. Therefore, even after the full load of bottled water is replaced later, the center of gravity of the water dispenser will not move forward and cause the water dispenser to tip forward. The full load of bottled water is not likely to bend the tray, which can effectively reduce the impact of the full load of bottled water on the sliding of the tray, which is conducive to improving the sliding stability and durability of the tray.

[0030] 2. By setting up a driving module to drive the tray to slide automatically, there is no need to manually pull the tray and bottled water out or push it into the placement cavity of the water dispenser body, which not only saves labor but also makes the process of changing bottled water simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of a bottom-mounted water dispenser in the prior art, where the tray is in a slid-out state.

[0032] Figure 2 This is a cross-sectional view of a bottom-mounted water dispenser in the prior art, with the tray in a slid-out state.

[0033] Figure 3 This is a structural schematic diagram of a hidden auxiliary guide wheel structure for a water dispenser tray in an embodiment of the present application.

[0034] Figure 4 This is a structural schematic diagram of a hidden auxiliary guide wheel structure of a water dispenser tray in an embodiment of the present application, wherein the tray is in a slid-out state at this time, and the side panel on one side of the placement box has been hidden.

[0035] Figure 5 This is a front view of a hidden auxiliary guide wheel structure of a water dispenser tray in an embodiment of the present application, wherein the tray is in a slid-out state at this time.

[0036] Figure 6 yes Figure 5 Cross-sectional view of AA in the figure.

[0037] Figure 7 yes Figure 6 A partial enlarged view of a.

[0038] Figure 8 yes Figure 5 Cross-sectional view of BB.

[0039] Figure 9 This is a schematic diagram of the bottom structure of a hidden auxiliary guide wheel structure of a water dispenser tray in an embodiment of the present application, wherein the tray is in a sliding out state at this time.

[0040] Figure 10 yes Figure 9 A partial enlarged view of b.

[0041] Description of reference numerals:

[0042] 1. Water dispenser body; 11. Storage box; 111. Storage cavity; 112. Bottom plate; 1121. Slope; 1122. Hidden baffle; 1123. First magnet; 113. Box door; 1131. Second magnet; 12. Tray; 15. First drive bracket; 16. Second drive bracket; 161. Crash pad; 2. Drive module; 21. Drive motor; 22. Steering reduction gearbox; 23. Screw; 24. Drive slider; 3. Guide module; 31. Linear slide; 32. Guide slider; 4. Auxiliary wheel assembly; 41. Fixed wheel frame; 411. First crossbar; 42. Support wheel; 43. Folding component; 431. Tension spring frame; 4311. Second crossbar; 432. Tension spring; 433. Wheel frame baffle. DETAILED DESCRIPTION

[0043] The following is combined with Figure 3-10 This application is described in further detail.

[0044] Reference Figure 3 and Figure 4 A water dispenser includes a main body 1. A storage box 11 is provided at the bottom of the main body 1. A storage cavity 111 is formed inside the box for accommodating bottled water. The storage box 11 includes a bottom plate 112 located at the bottom of the storage cavity 111 and a door 113 for closing the storage cavity 111. A tray 12 for supporting the bottled water is provided in the storage cavity 111. The tray 12 is slidably connected to the bottom plate 112. When the door 113 is closed, the tray 12 and the bottled water it carries are stored and hidden in the storage cavity 111.

[0045] The embodiment of the present application discloses a hidden auxiliary guide wheel structure for a water dispenser tray. Figure 3 and Figure 4 A hidden auxiliary guide wheel structure for a water dispenser tray includes a drive module 2, a guide module 3, and an auxiliary wheel assembly 4. The drive module 2 is used to drive the tray 12 to slide automatically, allowing it to slide out of or into the placement cavity 111 without manual intervention. The guide module 3 is used to guide the tray 12's sliding, allowing it to slide out of or into the placement cavity 111 in a straight line. The auxiliary wheel assembly 4 cooperates with the guide module 3 to support the tray 12 during its sliding process, thereby reducing the direct impact of the bottled water's weight on the tray 12 and its sliding.

[0046] Reference Figure 4 、 Figure 5 and Figure 6The drive module 2 includes a drive motor 21, a steering reduction gearbox 22, a screw 23, and a drive slider 24 mounted on the screw 23. Specifically, a first drive bracket 15 is provided at the end of the base plate 112 away from the box door 113. The steering reduction gearbox 22 is mounted below the first drive bracket 15. The drive motor 21 is mounted on the first drive bracket 15 and is mounted directly above the steering reduction gearbox 22 through the first drive bracket 15. The drive end of the drive motor 21 is connected to the input end of the steering reduction gearbox 22. Two sets of second drive brackets 16 are provided on the base plate 112. One set of second drive brackets 16 is located at the end of the base plate 112 away from the box door 113, and the other set of second drive brackets 16 is located at the end of the base plate 112 closer to the box door 113. The two sets of second drive brackets 16 extend linearly along the central axis of the base plate 112. The screw rod 23 is rotatably disposed between the two sets of second drive brackets 16. The output end of the steering reduction gearbox 22 is connected to the screw rod 23. The drive slider 24 is threadedly mounted on the screw rod 23 and positioned between the two sets of second drive brackets 16. The top side of the drive slider 24 is fixedly connected to the tray 12. Therefore, when the drive motor 21 is activated, the steering reduction gearbox 22 drives the screw rod 23 to rotate, thereby driving the drive slider 24 and the tray 12 to slide along the screw rod 23, allowing the tray 12 and the bottled water to slide into or out of the storage chamber 111. Specifically, the drive slider 24 can be a roller slider, a ball slider, or a roller slider. Since the drive slider 24 does not need to bear weight, in this embodiment, a ball slider is selected to provide low friction with the screw rod 23.

[0047] Reference Figure 7 Furthermore, when the screw rod 23 rotates, the driving slider 24 slides back and forth along the screw rod 23 between the two groups of second driving brackets 16. In order to reduce the collision between the driving slider 24 and the second driving bracket 16, thereby reducing damage to the driving slider 24, in this embodiment, the two groups of second driving brackets 16 are provided with anti-collision pads 161 on the side facing the driving slider 24.

[0048] Reference Figure 4 and Figure 8 The guide module 3 includes two sets of linear guide rails 31 and two sets of guide sliders 32. The two sets of linear guide rails 31 are fixedly mounted on the base plate 112. The two sets of linear guide rails 31 are respectively located on both sides of the screw rod 23 and are parallel to the screw rod 23. The two sets of guide sliders 32 are fixedly mounted on the side of the tray 12 facing the base plate 112 and are slidably connected to the two sets of linear guide rails 31. Specifically, the guide sliders 32 can be selected from roller sliders, ball sliders, or roller sliders. Since the guide sliders 32 need to have a certain degree of load-bearing effect on the tray 12 and the bottled water, in this embodiment, the guide sliders 32 are specifically selected from roller sliders with high load-bearing capacity. This can prevent the weight of the bottled water from crushing the guide sliders 32 and reduce the impact on the sliding of the tray 12.

[0049] Reference Figure 9 and Figure 10 The auxiliary wheel assembly 4 includes a fixed wheel frame 41, support wheels 42, and a folding member 43 for folding and storing the support wheels 42. In this embodiment, two auxiliary wheel assemblies 4 are provided, symmetrically arranged about the screw 23. In other embodiments, a single auxiliary wheel assembly 4 may be provided. If a single auxiliary wheel assembly 4 is provided, the auxiliary wheel assembly 4 and the screw 23 are arranged in a straight line.

[0050] Taking any set of auxiliary wheel groups 4 as an example, specifically, one end of the fixed wheel frame 41 is hinged to the bottom side of the tray 12 and is located at the end of the tray 12 away from the guide slider 32, and the support wheel 42 is rotatably arranged at the end of the fixed wheel frame 41 away from the tray 12, so that when the tray 12 slides out of the placement cavity 111, the end of the tray 12 that slides out of the placement cavity 111 can be supported by the auxiliary wheel group 4, while the end that has not slid out of the placement cavity 111 is supported by the guide slider 32 and the linear slide rail 31, and since the support wheel 42 can slide, the auxiliary wheel group 4 will not have any influence on the sliding of the tray 12.

[0051] Reference Figure 7 and Figure 10 The folding component 43 includes a tension spring frame 431 and a tension spring 432. Specifically, the tension spring frame 431 is arranged on the side of the fixed wheel frame 41 away from the box door 113. The fixed wheel frame 41 is provided with a first cross bar 411, and the tension spring frame 431 is provided with a second cross bar 4311. One end of the tension spring 432 is hooked on the first cross bar 411, and the other end is hooked on the second cross bar 4311. A slope 1121 is provided at one end of the bottom plate 112 near the door 113. When the tray 12 slides into the placement chamber 111, the support wheel 42 slides in along the slope 1121 and is gradually lifted and folded upward by the slope 1121. At this time, the tension spring 432 is stretched and stores a certain amount of elastic potential energy. When the tray 12 slides out of the placement chamber 111, the tension spring 432 uses the elastic potential energy to pull the fixed wheel frame 41, causing the support wheel 42 to cling to the slope 1121 and gradually straighten as the tray 12 slides out, thereby fully supporting the tray 12. In order to prevent the tension spring 432 from pulling the fixed wheel frame 41 beyond a position perpendicular to the ground, the folding component 43 also includes a wheel frame baffle 433. The wheel frame baffle 433 is provided on the side of the tray 12 facing the bottom plate 112 and is used to prevent the fixed wheel frame 41 from folding toward the tension spring frame 431.

[0052] Reference Figure 3 、 Figure 7 and Figure 10In order to allow the auxiliary wheel set 4 to be fully stored and hidden in the placement cavity 111 along with the tray 12, a hidden baffle 1122 for hiding the support wheel 42 is provided at the end of the slope 1121. Specifically, the two ends of the hidden baffle 1122 are rotatably connected to the bottom plate 112. A first magnet 1123 is provided on the top of the hidden baffle 1122, and a second magnet 1131 is provided on the bottom of the box door 113. When the box door 113 is opened, the hidden baffle 1122 flips downward due to its own gravity and cooperates with the slope 1121 to form an inclined plane, so that the support wheel 42 can slide out of the placement cavity 111. When the box door 113 is closed, the second magnet 1131 on the box door 113 causes the hidden baffle 1122 to flip upward through magnetic attraction, thereby shielding and hiding the auxiliary wheel set 4.

[0053] The implementation principle of the hidden auxiliary guide wheel structure of the water dispenser tray in the embodiment of the present application is as follows:

[0054] When the bottled water needs to be replaced, the door 113 of the storage chamber 11 is first opened. Once the door 113 is opened, the hidden baffle 1122 loses the magnetic attraction of the second magnet 1131 and flips downward due to its own gravity. Together with the slope 1121 of the bottom plate 112, it forms a large inclined plane, exposing the auxiliary wheel assembly 4. The drive motor 21 and the steering reduction gearbox 22 then drive the screw rod 23 to slowly rotate, driving the drive slider 24 and the tray 12 to slide along the extension direction of the screw rod 23, allowing the tray 12 and the bottled water to automatically slide out of the storage chamber 111 without manual pulling or pushing.

[0055] As the tray 12 slides outward from the placement cavity 111, the tension spring 432 pulls the fixed wheel frame 41 through its elastic potential energy, causing the support wheel 42 to cling to the slope 1121 and gradually straighten as the tray 12 slides out, thereby fully supporting the tray 12. Thus, the end of the tray 12 that slides out of the placement cavity 111 is fully supported by the auxiliary wheel assembly 4, while the end that does not slide out of the placement cavity 111 is supported by the guide slider 32 and the linear slide rail 31. Even after a full load of bottled water is subsequently replaced, the center of gravity of the water dispenser will not shift forward, causing the water dispenser to tip forward, and the fully loaded bottled water will not easily bend the tray 12. This can effectively reduce the impact of the fully loaded bottled water on the sliding of the tray 12, which is conducive to improving the sliding stability and durability of the tray 12.

[0056] After the bottled water is replaced, the tray 12 and the fully loaded bottled water can also be automatically slid in by the driving module 2, without the need for manual pushing. When the tray 12 is completely placed in the placement cavity 111, the support wheel 42 slides in along the slope 1121 and is gradually lifted up and folded by the slope 1121. At this time, the tension spring 432 is stretched and stores a certain amount of elastic potential energy, so that the auxiliary wheel assembly 4 can be pulled to the vertical extension state when the tray 12 slides out again next time.

[0057] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A hidden auxiliary guide wheel structure for a water dispenser tray, characterized by: It comprises a guide module (3) for guiding the tray (12) to slide, and an auxiliary wheel group (4) for cooperating with the guide module (3) to support the tray (12); The guide module (3) includes two sets of linear guide rails (31) and two sets of guide sliders (32), the two sets of linear guide rails (31) are respectively arranged on both sides of the base plate (112) and are symmetrical to each other along the central axis of the base plate (112), the two sets of guide sliders (32) are both arranged on the side of the tray (12) facing the base plate (112), and are located at the end of the tray (12) away from the box door (113) of the placement box (11), and the two sets of guide sliders (32) are respectively slidably connected to the two sets of linear guide rails (31); The auxiliary wheel assembly (4) includes a fixed wheel frame (41), a support wheel (42) and a folding component (43), wherein the fixed wheel frame (41) and the folding component (43) are both arranged on the side of the tray (12) facing the bottom plate (112), and are located at the end of the tray (12) close to the box door (113) of the placement box (11), wherein one end of the fixed wheel frame (41) is hinged to the tray (12), and the support wheel (42) is rotatably arranged at the end of the fixed wheel frame (41) away from the tray (12), and the folding component (43) is used to fold the support wheel (42) and store it in the placement cavity (111) of the placement box (11), and specifically, the folding component (43) can fold the fixed wheel frame (41) and restore it to a vertical state; A slope (1121) is provided at one end of the bottom plate (112) close to the box door (113), and when the tray (12) slides into or out of the placement box (11), the support wheel (42) can slide along the slope (1121).

2. The hidden auxiliary guide wheel structure for a water dispenser tray according to claim 1, characterized in that: The folding component (43) includes a tension spring frame (431) and a tension spring (432). The tension spring frame (431) is arranged on a side of the fixed wheel frame (41) away from the box door (113). A first crossbar (411) is arranged on the fixed wheel frame (41), and a second crossbar (4311) is arranged on the tension spring frame (431). Two ends of the tension spring (432) are respectively connected to the first crossbar (411) and the second crossbar (4311).

3. The hidden auxiliary guide wheel structure for a water dispenser tray according to claim 2, characterized in that: The folding component (43) further includes a wheel frame baffle (433), which is arranged on a side of the tray (12) facing the bottom plate (112). The wheel frame baffle (433) extends vertically downward and is used to prevent the fixed wheel frame (41) from folding in a direction toward the tension spring frame (431).

4. The hidden auxiliary guide wheel structure for a water dispenser tray according to claim 1, characterized in that: A hidden baffle (1122) is provided at the end of the slope (1121), and both ends of the hidden baffle (1122) are rotatably connected to the bottom plate (112). A first magnet (1123) is provided at the top end of the hidden baffle (1122), and a second magnet (1131) is provided at the bottom end of the box door (113). The first magnet (1123) and the second magnet (1131) are magnetically attracted to each other.

5. The hidden auxiliary guide wheel structure for a water dispenser tray according to claim 1, characterized in that: The guide slider (32) is specifically a roller slider.

6. The hidden auxiliary guide wheel structure for a water dispenser tray according to claim 1, characterized in that: It also includes a driving module (2) for driving the tray (12) to slide, the driving module (2) including a driving motor (21), a steering reduction box (22), a screw rod (23) and a driving slider (24); A first drive bracket (15) is provided at one end of the bottom plate (112) away from the box door (113), the steering reduction box (22) is installed below the first drive bracket (15), the drive motor (21) is mounted directly above the steering reduction box (22) through the first drive bracket (15), and the drive end of the drive motor (21) extends vertically downward and is connected to the input end of the steering reduction box (22); Two groups of second drive brackets (16) are provided on the bottom plate (112) along the central axis. The screw rod (23) is rotatably inserted between the second drive brackets (16). The output end of the steering reduction box (22) is connected to the screw rod (23). The drive slider (24) is threadedly sleeved on the screw rod (23) and is located between the two groups of second drive brackets (16). The top end of the drive slider (24) is fixedly connected to the tray (12).

7. The hidden auxiliary guide wheel structure for a water dispenser tray according to claim 6, characterized in that: The driving slider (24) is specifically a ball slider.

8. The hidden auxiliary guide wheel structure for a water dispenser tray according to claim 6, characterized in that: An anti-collision pad (161) is provided on one side of the second driving bracket (16) facing the driving slider (24).

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