Water dispenser for pets

Abstract

The invention relates to the technical field of pet supplies, and particularly discloses a pet water dispenser. The pet water dispenser comprises a shell, a drinking tray assembly, a driving piece and an overturning transmission mechanism. The drinking tray assembly is installed on the shell through a rotating shaft on the side portion, the overturning transmission mechanism comprises a driving sliding block driven by a driving piece and a contour surface arranged on the drinking tray assembly, and the drinking tray assembly is driven to automatically overturn around the rotating shaft to pour sewage through cooperation of the sliding block and the contour surface. A locking mechanism is further arranged, automatic locking is achieved when the rotating shaft is installed in place, and axial loosening of the assembly is prevented. The water dispenser is simple and compact in structure, high in automation degree and reliable in work, and the use safety and convenience are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pet products, in particular to a pet water dispenser. BACKGROUND

[0002] Automatic pet water dispensers have become a common device in modern pet households, which usually have a water tray for pets to drink. However, the pet water dispensers in the prior art have problems of complex structure, insufficient reliability or low degree of automation in achieving automatic cleaning of the water tray.

[0003] Currently, to achieve sewage dumping of the water tray, some products adopt a reversible design. A common approach is to simply install the water tray assembly on the main housing through the rotating shaft of its side, and rely on manual turning for cleaning. This approach does not achieve automation and the user experience is poor. Some designs try to introduce electric drive to achieve automatic turning. However, the transmission mechanisms used by these designs are often complex, for example, they may use multi-stage linkages, gear sets or complex hinge mechanisms. Such mechanisms have problems of many parts, high manufacturing cost, large space occupation, and reliability problems such as wear and jam under long-term use. More importantly, these complex mechanisms are difficult to balance between stable horizontal holding of the water tray in the non-working state and efficient and reliable turning action in the working state within the limited machine space. The turning process may not be smooth, or it may not provide clear initial position holding, and it is easy to be accidentally shaken or turned due to pet collision. SUMMARY

[0004] To solve the above problems, the present application provides a new type of pet water dispenser. It should be able to achieve automatic turning cleaning of the drinking tray assembly, and the turning mechanism needs to be simple and compact in structure, reliable and efficient in transmission, and able to ensure smooth turning of the water tray in the working state and stable holding in the non-working state, thereby improving the overall level of automation, reliability and user experience of the product.

[0005] To achieve the above purpose, the technical solution adopted by the present application is: a pet water dispenser, comprising: a housing; a drinking tray assembly rotatably mounted on the housing through a rotating shaft of its side; a drive member arranged in the housing; and a turning transmission mechanism connecting the drive member and the drinking tray assembly; the turning transmission mechanism includes a drive slider horizontally sliding driven by the drive member, and a profile surface arranged on the drinking tray assembly; the profile surface includes a horizontal maintenance surface for the drive slider to abut against to maintain the drinking tray assembly horizontally in an initial state, and a drive slope connected with the horizontal maintenance surface for being pressed by the drive slider to drive the drinking tray assembly to turn around the rotating shaft in a working state.

[0006] Further, the overturning transmission mechanism is in the form of rack and pinion transmission, comprising a driving gear connected with the output shaft of the driving member, a transmission rack engaged with the driving gear, and the driving slider fixed on the transmission rack; the transmission rack is provided with a stroke trigger protrusion, and the housing is provided with a limit switch, and the overturning stroke is controlled through the cooperation of the protrusion and the switch.

[0007] Further, the overturning transmission mechanism is in the form of rack and pinion transmission, comprising a driving gear connected with the output shaft of the driving member, a transmission rack engaged with the driving gear, and the driving slider fixed on the transmission rack; the transmission rack is provided with a stroke trigger protrusion, and the housing is provided with a limit switch, and the overturning stroke is controlled through the cooperation of the protrusion and the switch.

[0008] Further, the overturning transmission mechanism is in the form of rack and pinion transmission, comprising a driving gear connected with the output shaft of the driving member, a transmission rack engaged with the driving gear, and the driving slider fixed on the transmission rack; the transmission rack is provided with a stroke trigger protrusion, and the housing is provided with a limit switch, and the overturning stroke is controlled through the cooperation of the protrusion and the switch.

[0009] Further, the end of the locking pin is provided with a guide slope, which is used to compress the locking pin back through the slope contact when the rotating shaft is installed, until the axial clamping groove moves to the corresponding position of the locking pin and is automatically clamped; further comprising an unlocking operating member connected with the locking pin, which is used to accept external operation to drive the locking pin to move against the elastic force of the elastic member, so as to disengage from the axial clamping groove.

[0010] Further, the overturning transmission mechanism is in the form of rack and pinion transmission, comprising a driving gear connected with the output shaft of the driving member, a transmission rack engaged with the driving gear, and the driving slider fixed on the transmission rack; the transmission rack is provided with a stroke trigger protrusion, and the housing is provided with a limit switch, and the overturning stroke is controlled through the cooperation of the protrusion and the switch.

[0011] Further, the water tank and the shell are detachably connected through a hook structure; the hook structure comprises a hook provided on the shell and a matching guide groove and a locking blind groove provided on the water tank; the hook slides along the matching guide groove and is finally buckled into the locking blind groove, so as to realize the locking of the water tank and the shell.

[0012] Further, the sewage tank is detachably connected with the shell through a push-in elastic buckling structure; the elastic buckling structure comprises an L-shaped buckle arranged on the sewage tank and a buckling piece arranged in the shell and capable of being telescopically moved under the action of an elastic piece; when the sewage tank is pushed towards the shell, the L-shaped buckle extrudes the buckling piece to make it retract, and after passing the buckling piece, the buckling piece resets under the action of the elastic piece and is locked in the hook part of the L-shaped buckle to realize locking.

[0013] Further, the sewage tank comprises a bottom cylinder and a cover plate arranged on the bottom cylinder, a recessed plate part is arranged on the cover plate and recessed downward, and a water leakage groove is arranged on the recessed plate part.

[0014] Further, the water outlet of the water outlet pipe is in a linear shape to reduce water flow splashing.

[0015] The beneficial effects of the present application are that: 1. Through the innovative cooperation of the driving slider and the specific profile surface (horizontal maintenance surface and driving slope) on the drinking disc assembly, the core overturning transmission mechanism is formed. This design directly and efficiently converts the horizontal linear motion of the driving part into stable overturning motion through the slope contact, so that the whole machine structure is more simple and compact compared with the traditional complex connecting rod or gear mechanism, and there are fewer parts. Not only does this reduce manufacturing costs, but it also greatly improves the reliability and durability of the transmission mechanism and reduces the risk of wear and jam. This mechanism ingeniously integrates the functions of "horizontal maintenance" and "overturning drive" in one: the horizontal maintenance surface ensures the stable loading of the assembly during daily drinking of pets, effectively preventing shaking; and the driving slope ensures the smoothness and strength of the overturning action, realizing automatic sewage dumping, fundamentally liberating users from frequent manual cleaning, and achieving high automation.

[0016] 2. On this basis, the present application integrates an intelligent water replenishing mechanism, which monitors the water quantity in real time through a weight sensor or a water level electrode and automatically replenishes water, ensuring the continuity of drinking water. At the same time, the added locking mechanism uses a locking bolt and an automatic clamping of the axial clamping groove on the rotating shaft to provide reliable axial constraint for the drinking disc assembly, effectively resisting accidental external forces such as pet collisions, preventing the assembly from falling off and sewage spilling, and significantly improving safety performance. In addition, the hook guiding locking structure of the water tank and the push-in elastic buckling structure of the sewage tank make the assembly and disassembly of the water tank simple and firm; and the linear design of the water outlet effectively reduces water flow splashing, and the flow guiding structure on the cover plate of the sewage tank also optimizes the sewage collection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a pet water dispenser.

[0018] Figure 2 is a schematic diagram of the internal structure of the shell.

[0019] Figure 3 Figure 1 is a sectional view of a pet water fountain.

[0020] Figure 4 Figure 2 is a structural schematic diagram of a drinking tray assembly.

[0021] Figure 5 Figure 3 is a schematic diagram of the working principle of the drinking tray assembly for achieving overturning.

[0022] Figure 6 Figure 4 is a schematic diagram of the working principle of the drinking tray assembly for achieving overturning by using another scheme.

[0023] Figure 7 Figure 5 is a structural schematic diagram of the drinking tray assembly from another perspective. Figure 6

[0024] Figure 8 Figure 6 is a schematic diagram of the working principle of the drinking tray assembly for achieving overturning by using yet another scheme.

[0025] Figure 9 Figure 7 is a structural schematic diagram of a shell in a pet water fountain.

[0026] Figure 10 Figure 8 is a structural schematic diagram of a clean water tank.

[0027] Figure 11 Figure 9 is a structural schematic diagram of a hook reinforcing rib.

[0028] Figure 12 Figure 10 is a sectional view of the interior of the shell.

[0029] Figure 13 Figure 11 is a structural schematic diagram of a sewage tank.

[0030] Figure 14 Figure 12 is a structural schematic diagram of a winding column in a charging bin.

[0031] Figure 15 Figure 13 is a structural schematic diagram of a hole position in the interior of the shell.

[0032] Figure 16 Figure 14 is a structural schematic diagram of the working principle of safety locking of the drinking tray assembly.

[0033] ​Explanation of reference numerals: 10, housing; 20, clean water tank; 30, sewage tank; 31, bottom cylinder; 32, cover plate; 40, water pump; 50, drinking dish assembly; 51, bottom shell; 52, water tray; 53, driving slope; 54, pressure contact foot; 55, horizontal maintenance surface; 60, driving slider; 70, driving member; 71, driving gear; 72, transmission rack; 73, stroke trigger protrusion; 74, limit switch; 75, transmission swing arm; 76, transmission long plate; 77, matching block; 78, swing arm sliding groove; 90, water outlet pipe; 91, water outlet; 101, first hook; 102, hook reinforcing rib; 103, water tank base; 104, base waterway; 105, valve core trigger block; 107, buckling member; 108, first elastic member; 109, first fixed plate; 110, charging compartment; 111, winding column; 112, locking bolt; 113, second elastic member; 114, unlocking button; 115, second fixed plate; 116, weight sensor; 201, matching guide groove; 202, locking blind groove; 203, water tank check valve; 301, L-shaped buckle; 322, concave plate part; 323, water leakage groove; 10a, first through hole part; 10c, first outer surface; 10d, second outer surface; 10c1, buckling hole; 10c2, operation waist hole; 50b, rotating shaft; 50b1, axial clamping groove; 1121, spring accommodating groove; 1071, first elastic member matching column. DETAILED DESCRIPTION

[0034] Referring to Figures 1-15 The present application relates to a pet water dispenser, which realizes the functions of clean water supply, sewage collection, automatic overturning and cleaning, and intelligent water replenishment through a series of ingenious structural designs, and focuses on improving the convenience of assembly, the safety of use, and the convenience of maintenance.

[0035] Overall layout and water flow path: The pet water dispenser mainly comprises a housing 10, a clean water tank 20, a sewage tank 30, a water outlet pipe 90, a water pump 40, a drinking dish assembly 50, a driving member 70, and an overturning transmission mechanism. The housing 10 is a square box body having a first outer surface 10c and a second outer surface 10d arranged opposite to each other. The clean water tank 20 is detachably matched to one side of the second outer surface 10d of the housing 10, and the sewage tank 30 is detachably matched to one side of the first outer surface 10c of the housing 10. The water outlet pipe 90 is fixedly installed on the housing 10 and located above the drinking dish assembly 50. The water pump 40 is arranged inside the housing 10, and its water inlet end is communicated with the bottom of the clean water tank 20 through a first communication pipe, and its water outlet end is communicated with the water outlet pipe 90 through a second communication pipe.

[0036] In another embodiment, the water outlet pipe 90 can adopt two design ways to adapt to different needs. One is that the water outlet pipe 90 is integrally formed with the shell 10 and directly formed on the shell 10 through an injection molding process. This design structure is simple, has good sealing performance, and can reduce the risk of water leakage. The second is that the water outlet pipe 90 is detachably installed, for example, through threaded connection, buckle structure, or quick release interface and shell 10 assembly, which is convenient for users to clean or replace, or the water outlet pipe 90 made of soft rubber material is directly installed on the shell 10 through interference fit. No matter which way, the water outlet pipe 90 is located above the drinking disc assembly 50 to ensure smooth water flow. The water outlet 91 is optimized to be a linear shape to reduce water spray.

[0037] The basic working process is: the water pump 40 draws clean water from the clean water tank 20, and delivers it to the lower drinking disc assembly 50 through the water outlet pipe 90 for the pet to drink. The water after drinking is stored as sewage in the drinking disc assembly 50, which can be turned over by the driving part 70 and the overturning transmission mechanism, and then poured into the lower sewage tank 30, thereby realizing clean and sewage separation.

[0038] Please refer to Figures 10-11 As shown, further illustrate the connection and water passing mechanism of the clean water tank 20 and the shell 10: the connection between the clean water tank 20 and the shell 10 adopts a quick locking structure. Two first hooks 101 are arranged on the second outer surface 10d of the shell 10. Correspondingly, a matching guide slot 201 is arranged on the corresponding surface of the clean water tank 20, and the end of the matching guide slot 201 forms a locking blind slot 202. When installing the clean water tank 20, the user aligns and slides the first hook 101 into the matching guide slot 201, and finally buckles into the locking blind slot 202, so that firm locking can be achieved, and the clean water tank 20 and the shell 10 are effectively prevented from loosening when the machine is moved.

[0039] In order to further optimize the assembly experience, the width of the matching guide slot 201 is designed to decrease from bottom to top, that is, the starting end has a larger opening to facilitate the introduction of the first hook 101, and then gradually narrows to realize close fitting. At the same time, in order to enhance the structural reliability, the back of the first hook 101 is provided with a hook reinforcing rib 102 to resist stress deformation and ensure the long-term effectiveness of the locking mechanism.

[0040] Please refer to Figures 2-3, 9-10, an automatic opening and closing interface is designed in terms of water flow. A water tank base 103 is arranged at the bottom of the shell 10 close to the water tank 20, and a base water channel 104 is formed in the water tank base 103. One end of the base water channel 104 is communicated with the water inlet of the water pump 40 through a first communication pipe, and a valve core trigger block 105 is arranged in the water channel. A water outlet hole is formed in the bottom of the water tank 20, and a water tank check valve 203 is arranged in the water outlet hole. The water tank check valve 203 is normally closed under the action of the elastic element inside. When the water tank 20 is correctly installed on the shell 10, the bottom of the water tank 20 is seated on the water tank base 103. At this time, the valve core trigger block 105 in the base water channel 104 extrudes the water tank check valve 203 at the bottom of the water tank 20 upwards, overcomes the elastic force to open it, and the purified water can flow from the water tank 20 into the water pump 40 through the base water channel 104. When the user lifts the water tank 20, the valve core trigger block 105 is separated from the water tank check valve 203, and the water tank check valve 203 is automatically reset under the action of its own elastic element to close the water outlet hole, realizing quick water cut-off.

[0041] In addition, in another embodiment, a waterproof film with a cross-shaped opening is also arranged at the port of the base water channel 104 of the water tank base 103. When the water tank 20 is lifted, the film can effectively prevent the residual water in the base water channel 104 from leaking out, keeping the body and the working area dry and clean.

[0042] Further discussion, connection mechanism of the sewage tank 30 and the shell 10: in another embodiment, in order to simplify the installation and disassembly process of the sewage tank 30, a push-in type elastic buckling structure is specially designed.

[0043] Please refer to Figures 12-15 As shown in the drawings, an L-shaped buckle 301 is arranged on the back of the sewage tank 30, and a buckling hole 10c1 is formed in the corresponding position of the first outer surface 10c of the shell 10, and an elastic buckling assembly is arranged in the buckling hole 10c1. The elastic buckling assembly includes a buckling piece 107 and a first elastic element 108 providing elastic force, and the first elastic element 108 is usually a spring. One end of the buckling piece 107 is designed as an inclined surface, and the corresponding contact part of the L-shaped buckle 301 is also designed as a matching inclined surface or arc.

[0044] When installing the sewage tank 30, the user only needs to place it on the ground or table top, and then push it forward to the shell 10. The L-shaped buckle 301 first enters the buckling hole 10c1 on the shell 10, and the inclined surface thereof contacts with the inclined surface of the buckling piece 107, generating a component force that makes the buckling piece 107 compress the first elastic element 108 and retreat backward. When the L-shaped buckle 301 completely passes the buckling piece 107, the first elastic element 108 pushes the buckling piece 107 to reset, and the end part is clamped into the hook part or recess part of the L-shaped buckle 301, thereby completing the locking.

[0045] When disassembling, since the side of the buckling piece 107 locked with the L-shaped buckle 301 is a vertical plane, the sewage tank 30 cannot be pulled out horizontally to be separated. The user needs to lift the shell 10 upward, and the buckling piece 107 on the shell 10 moves upward as a whole. At this time, the horizontal part of the L-shaped buckle 301 moves downward relative to the buckling piece 107. When the buckling piece 107 moves upward to be separated from the horizontal part of the L-shaped buckle 301, the sewage tank 30 can be pulled out horizontally to be separated. This design ensures the firmness of the connection in the locked state, effectively prevents the sewage tank 30 from falling off due to accidental collision of the pet, and still makes the assembly and disassembly process simple and labor-saving.

[0046] The beneficial effect of this connection mechanism is that when installing, the user only needs to push the sewage tank 30 horizontally, and the automatic buckling can be achieved by using the inclined surface, which is easy to operate. When disassembling, although the main machine needs to be lifted, the geometric structure of the L-shaped buckle 301 is ingeniously used to avoid complex unlocking operations and ensure the absolute reliability of the lock in daily use. Compared with the traditional design which needs to lift the shell for alignment and buckling throughout the process, the labor intensity of the user is significantly reduced.

[0047] Please refer to Figure 12 As shown in the figure, the detailed structure of the elastic buckling assembly is as follows: the buckling piece 107 is provided with a first elastic piece fitting column 1071. A first fixed plate 109 is fixed in the shell 10. One end of the first elastic piece 108 is sleeved on the first elastic piece fitting column 1071, and the other end abuts against the first fixed plate 109, thereby providing stable elastic support and restoring force for the buckling piece 107.

[0048] Please refer to Figure 14 As shown in the figure, regarding the cable management of the charging interface: considering that the pet may bite or trip over the wire during play, a charging compartment 110 with a cover is provided on the side of the shell 10, and the charging interface is arranged in the charging compartment 110. In particular, a plurality of wire winding columns 111 are arranged in the charging compartment 110. The user can neatly wind the excess wire between the power adapter and the main machine on the wire winding column 111 according to actual needs, avoiding the exposure of the excess cable. This design not only makes the appearance neat and beautiful, but also effectively eliminates the potential safety risk caused by the excess cable.

[0049] Please refer to Figure 4 As shown in the figure, regarding the overturning and sewage dumping mechanism of the drinking plate assembly: the drinking plate assembly 50 includes a bottom shell 51 and a water container 52 which is detachably placed on the bottom shell 51. The water container 52 is preferably made of metal material, because it has a smooth surface, is not easy to attach dirt, is easy to clean and has a solid and durable structure. The bottom shell 51 extends outward on one side to form a rotating shaft 50b which penetrates the first through hole part 10a on the shell 10 and is rotatably installed on the shell 10, so that the whole drinking plate assembly 50 can be overturned with the rotating shaft 50b as the fulcrum.

[0050] Referring to Figures 4-5 As shown, the overturning action is realized by the overturning transmission mechanism through the driving member 70. Specifically, on the side of the bottom shell 51 of the drinking dish assembly 50 close to the shell 10, a special profile surface is arranged. The profile surface is continuously formed by a horizontal maintaining surface 55 and a driving slope surface 53 connected with the horizontal maintaining surface 55. The overturning transmission mechanism comprises a driving slider 60, which is driven by the driving member 70 and can slide in the horizontal direction.

[0051] In the initial state (i.e. non-working state), the front end of the driving slider 60 abuts against the profile surface and is normally rested in the intersection area of the horizontal maintaining surface 55 and the driving slope surface 53. Since the horizontal maintaining surface 55 is parallel to the horizontal movement direction of the driving slider 60, it provides a stable support plane for the driving slider 60, thereby ensuring that the drinking dish assembly 50 can be stably maintained in the horizontal state without shaking or accidental overturning when the pet normally drinks water.

[0052] When the sewage dumping procedure needs to be performed, the driving member 70 is started to push the driving slider 60 to slide horizontally forward. The front end of the driving slider 60 slides from the horizontal maintaining surface 55 into the driving slope surface 53. As the driving slider 60 continues to advance, its front end is always pressed against the driving slope surface 53, thereby converting a horizontal pushing force into a torque for overturning the drinking dish assembly 50 upward around the rotating shaft 50b, and finally dumping the sewage into the sewage tank 30 below. After the sewage dumping is completed, the driving member 70 is reversely moved to drive the driving slider 60 to retreat. The driving slider 60 slides along the driving slope surface 53 back and is finally reset to the initial position on the horizontal maintaining surface 55, and the drinking dish assembly 50 is smoothly restored to the horizontal state under the action of gravity.

[0053] Among them, the driving member 70 and the overturning transmission mechanism have multiple feasible embodiments, and two examples are listed as follows: Referring to Figures 4-5 As shown, scheme one: rack and pinion transmission scheme In this scheme, the overturning transmission mechanism mainly comprises a driving gear 71, a transmission rack 72 and the driving slider 60. The driving member 70 is a motor, and its output shaft is fixedly connected with the driving gear 71. The transmission rack 72 is engaged with the driving gear 71, and the driving slider 60 is fixedly installed at the end or above the transmission rack 72.

[0054] Working process: the motor is positively rotated to drive the driving gear 71 to rotate, drive the transmission rack 72 engaged therewith to move horizontally along the linear guide rail or guide structure, thereby driving the driving slider 60 to move forward synchronously and push the drinking dish assembly 50 to overturn.

[0055] Stroke control: In order to accurately control the overturning and resetting stroke, two stroke trigger protrusions 73 are arranged on the transmission rack 72, and limit switches 74 are installed at the corresponding positions in the shell 10. When the transmission rack 72 moves to the position where the stroke trigger protrusion 73 at the front end thereof presses the limit switch 74, the control system determines that the overturning is in place, and the motor stops; after a preset water pouring time, the motor reverses, the transmission rack 72 drives the sliding block 60 back to the reset position, and when the other stroke trigger protrusion 73 at the rear end of the transmission rack 72 presses the limit switch 74, it is determined that the resetting is in place, and the motor stops.

[0056] Please refer to Figures 6-8 Scheme II: swing arm transmission scheme

[0057] In this scheme, the overturning transmission mechanism mainly includes a transmission swing arm 75, a transmission long plate 76, a matching block 77, and the driving sliding block 60. The driving member 70 is a motor, and the output shaft thereof is fixedly connected with one end of the transmission swing arm 75. The transmission long plate 76 is connected with the driving sliding block 60 and is horizontally slidably installed on the shell 10. The matching block 77 is fixed to the back surface of the transmission long plate 76, and a swing arm sliding groove 78 is formed in the matching block 77. The free end of the transmission swing arm 75 is movably fitted in the swing arm sliding groove 78 through a bearing or a sliding block. According to the difference between the swing arm movement plane and the sliding groove guide direction, there are two refined implementation ways of this scheme: Please refer to Figure 8 Scheme 2.1 (swing in horizontal plane) The length direction of the transmission long plate 76 is defined as the X axis. At this time, the extension direction of the swing arm sliding groove 78 is set as the Y axis direction perpendicular to the X axis. The transmission swing arm 75 swings in the horizontal plane composed of the X axis and the Y axis. When the motor drives the transmission swing arm 75 to rotate, the free end thereof slides in the swing arm sliding groove 78 in the Y axis direction, and at the same time, the transmission long plate 76 reciprocates along the X axis direction. Please refer to Figures 6-7 Scheme 2.2 (swing in vertical plane) Similarly, the length direction of the transmission long plate 76 is defined as the X axis. At this time, the extension direction of the swing arm sliding groove 78 is set as the Z axis direction perpendicular to the X axis. The transmission swing arm 75 swings in the vertical plane composed of the X axis and the Z axis. When the motor drives the transmission swing arm 75 to rotate, the free end thereof slides in the swing arm sliding groove 78 in the Z axis direction, and at the same time, the transmission long plate 76 reciprocates along the X axis direction.

[0058] Cooperative working process: Regardless of which refined way, the rotary motion of the motor is converted into the accurate horizontal reciprocating motion of the transmission long plate 76 and the driving sliding block 60 through the motion of the transmission swing arm 75 in the swing arm sliding groove 78, thereby realizing the overturning and resetting of the drinking tray assembly 50. The stroke control can be realized by arranging trigger protrusions on the transmission long plate 76 and limit switches 74, and the principle is similar to that of scheme I.

[0059] Referring to Figure 16 As shown, the following discussion is about the safety locking and stroke limiting mechanism of the drinking tray assembly 50: in order to prevent pets from accidentally pulling out the drinking tray assembly 50 during normal use, and to accurately control the turning angle, a special safety locking and stroke limiting mechanism is designed. On the circumferential surface of the rotating shaft 50b of the bottom shell 51, an axial clamping groove 50b1 is formed. A shaft locking mechanism is provided at the corresponding position in the shell 10. The mechanism includes a locking latch 112 and a second elastic member 113, which is usually a spring. The head of the locking latch 112 is designed as an inclined surface. When the user installs the drinking tray assembly 50, the rotating shaft 50b is inserted into the first through-hole part 10a of the shell 10, and the outer circumferential surface of the shaft 50b will contact the inclined surface of the head of the locking latch 112 and be pressed, compressing the second elastic member 113 and retreating. When the rotating shaft 50b is inserted to the position of the locking latch 112 in the axial clamping groove 50b1, the locking latch 112 is ejected under the restoring force of the second elastic member 113, and its head is clamped into the axial clamping groove 50b1, usually accompanied by a "click" sound, indicating that it is installed in place. At this time, because the non-inclined side of the head of the locking latch 112 is in abutment with the side wall of the axial clamping groove 50b1, the rotating shaft 50b cannot be directly pulled out axially, achieving safety locking. At the same time, this small axial clamping groove 50b1 also cooperates with the locking latch 112 to limit the rotation angle of the rotating shaft 50b (i.e. the entire drinking tray assembly 50), achieving stroke limiting.

[0060] When the user needs to disassemble the drinking tray assembly 50 for cleaning, manual unlocking can be performed. An operation waist hole 10c2 is formed on the first outer surface 10c of the shell 10 at the corresponding position of the locking latch 112. One end of an unlocking button 114 is connected with the locking latch 112 through the operation waist hole 10c2. A second fixed plate 115 is fixed in the shell 10. A spring accommodating groove 1121 is provided on the locking latch 112. One end of the second elastic member 113 is in abutment with the second fixed plate 115, and the other end is in abutment with the inner wall of the spring accommodating groove 1121. In the initial state, the second elastic member 113 is in a compressed state, keeping the locking latch 112 in a clamping tendency. The user presses or pushes the unlocking button 114 outward, driving the locking latch 112 to overcome the force of the second elastic member 113 and disengage from the axial clamping groove 50b1, at which time the drinking tray assembly 50 together with the rotating shaft 50b can be taken out from the first through-hole part 10a. After releasing the unlocking button 114, the locking latch 112 is reset under the action of the second elastic member 113.

[0061] Moreover, in another embodiment, in order to solve the problem of water shortage of traditional water dispensers, intelligent water quantity detection and automatic water replenishment function is introduced.

[0062] Scheme one: gravity sensing type. A weight sensor 116 is arranged on the shell 10, with its detection end extending out of the surface of the shell 10. A pressure contact 54 is arranged on one side of the bottom shell 51 of the drinking dish assembly 50. When the drinking dish assembly 50 is in the normal, non-inverted horizontal position, the pressure contact 54 is just pressed on the detection end of the weight sensor 116. The weight sensor 116 detects the total weight of the water tray 52 and the water in it in real time. When the water level is reduced due to the pet drinking, and the total weight is lower than the preset value of the control system, the control system starts the water pump 40 to pump water from the clean water tank 20 to the water tray 52 of the drinking dish assembly 50 until the total weight is restored to above the set value.

[0063] Scheme two: electrode detection type. A water level detection electrode is arranged inside the rotating shaft 50b, with its detection end extending into the water area of the drinking dish assembly 50. When the water surface in the water tray 52 is higher than the end of the water level detection electrode, the circuit is turned on; when the water surface is lowered due to evaporation or drinking and is lower than the end of the water level detection electrode, the circuit is turned off. The control system determines whether there is water shortage according to the on-off state of the circuit, and when it is determined that there is water shortage (the circuit is turned off), the water pump 40 is started to supplement water until the water surface contacts the electrode again and the circuit is turned on.

[0064] The following discusses other optimization design details: Optimization of the water outlet 91 shape: the water outlet 91 of the water outlet pipe 90 is designed in a character shape. This shape helps the water flow to fall in a uniform and stable sheet or curtain shape, which can effectively reduce the splashing phenomenon when the water flow hits the water surface of the water tray 52, making the pet drinking process more quiet and comfortable.

[0065] Optimization of the sewage tank 30 structure: the sewage tank 30 includes a bottom cylinder 31 as the main container and a cover plate 32 detachably arranged on it. The cover plate 32 is provided with a downwardly recessed recessed plate part 322, which provides the necessary avoidance space when the drinking dish assembly 50 is inverted to pour water. A plurality of water leakage grooves 323 are opened on the recessed plate part 322, which facilitates the rapid and smooth flow of sewage into the bottom cylinder 31 for collection, and prevents the sewage from accumulating or overflowing on the cover plate 32.

[0066] The above embodiments only describe the preferred embodiments of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by ordinary engineering technicians in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A pet water fountain, characterized in that, include: case; A drinking dish assembly, which is rotatably mounted on the housing via a rotating shaft on the side; The driving component is disposed within the housing; as well as A flip-up transmission mechanism connects the drive component and the drinking tray assembly; The flipping transmission mechanism includes a drive slider that slides horizontally driven by the drive member, and a contour surface disposed on the drinking tray assembly; the contour surface includes a horizontal holding surface for the drive slider to abut against in the initial state to maintain the drinking tray assembly horizontally, and a drive inclined surface connected to the horizontal holding surface for being pressed by the drive slider in the working state to drive the drinking tray assembly to flip around the rotation axis.

2. The pet water fountain according to claim 1, characterized in that, The flipping transmission mechanism is a rack and pinion transmission type, including a drive gear connected to the output shaft of the drive component, a transmission rack meshing with the drive gear, and a drive slider fixed on the transmission rack; the transmission rack is provided with a stroke trigger protrusion, and a limit switch is provided in the housing, and the flipping stroke is controlled by the cooperation between the protrusion and the switch.

3. A pet water fountain according to claim 1, characterized in that, The flipping transmission mechanism is a swing arm transmission type, including a transmission swing arm connected to the output shaft of the drive component, a horizontally sliding transmission plate, and a mating block fixed on the transmission plate; the free end of the transmission swing arm is movably connected to a swing arm slide groove opened on the mating block, converting the rotational motion of the transmission swing arm into the horizontal reciprocating motion of the transmission plate and the drive slider.

4. A pet water fountain according to claim 1, characterized in that, It also includes a locking mechanism, which comprises: A locking assembly disposed within the housing includes a locking pin and an elastic element providing a resilient force; and An axial groove is provided on the circumferential surface of the rotating shaft; When the rotating shaft is installed in the predetermined position, the locking pin automatically engages with the axial slot under the elastic force of the elastic element to prevent the rotating shaft from axially disengaging.

5. A pet water fountain according to claim 4, characterized in that, The locking pin has a guide slope at its end, which is used to compress the locking pin by contact with the slope when the rotating shaft is installed, until the axial slot moves to the position corresponding to the locking pin and automatically engages; it also includes an unlocking operation component, which is connected to the locking pin and is used to accept external operation to drive the locking pin to move against the elastic force of the elastic element, thereby disengaging from the axial slot.

6. A pet water fountain according to claim 1, characterized in that, It also includes a water replenishment mechanism, which includes a weight sensor disposed on the housing for detecting the weight of the drinking tray assembly, or a water level detection electrode disposed inside the rotating shaft; the water replenishment mechanism is linked to the water pump and automatically starts water replenishment when insufficient water is detected.

7. A pet water fountain according to claim 1, characterized in that, The water purification tank and the housing are detachably connected by a hook structure; the hook structure includes a hook on the housing and a fitting guide groove and a locking blind groove on the water purification tank; the hook slides along the fitting guide groove and finally engages with the locking blind groove to lock the water purification tank and the housing.

8. A pet water fountain according to claim 1, characterized in that, The sewage tank and the housing are detachably connected by a push-in elastic fastening structure. The elastic fastening structure includes an L-shaped buckle on the sewage tank and a fastening member inside the housing that can extend and retract under the action of an elastic element. When the sewage tank is pushed toward the housing, the L-shaped buckle squeezes the fastening member to retract it. After passing the fastening member, the fastening member resets under the action of the elastic element and engages with the hook of the L-shaped buckle to lock it in place.

9. A pet water fountain according to claim 8, characterized in that, The sewage tank includes a bottom cylinder and a cover plate covering the bottom cylinder. The cover plate has a recessed portion with a water leakage groove.

10. A pet water fountain according to claim 1, characterized in that, It also includes a water outlet pipe, which is disposed on the housing. The water outlet of the water outlet pipe is in the shape of a straight line to reduce water splashing.

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