Livestock drinking trough height adjusting system

Abstract

The invention is applicable to the technical field of livestock feeding devices, and provides a livestock drinking trough height adjusting system which comprises a base, a control mechanism mounted on the base, a water trough arranged above the base, an execution mechanism fixedly mounted on the base, and a control mechanism used for sensing that livestock is close to the water trough and controlling the execution mechanism to work. The executing mechanism is used for driving the water tank to adjust the height in the vertical direction; according to the system, the infrared sensor senses approaching of livestock, the controller receives signals and controls the servo motor to work, then the executing mechanism is driven to automatically adjust the height of the water tank, manual participation is not needed, and the labor cost is reduced. According to the system, automatic adjustment is achieved, workers do not need to spend time on water tank height adjustment, more energy can be put into other breeding links, it is ensured that livestock can drink water at the appropriate height immediately when needing to drink water, the physiological needs of the livestock are met in time, and healthy growth of the livestock is facilitated.

Description

Technical Field

[0001] This invention belongs to the technical field of livestock feeding equipment, and in particular relates to a livestock drinking trough height adjustment system. Background Technology

[0002] The livestock water trough height adjustment system is an intelligent device designed specifically for livestock farms. It can flexibly adjust the trough height using hydraulic, electric, or mechanical mechanisms based on the livestock's growth stage and size differences, ensuring comfortable drinking. The system is equipped with anti-tipping supports and corrosion-resistant materials to guarantee stability and durability. It supports both manual and automatic operation modes, and some models also integrate automatic water replenishment and constant temperature heating functions, effectively improving breeding efficiency and reducing labor costs.

[0003] Existing livestock water trough height adjustment systems fail to automatically adjust the trough height when livestock approach, requiring manual lowering and subsequent manual restoration after drinking. This manual intervention is time-consuming, involving tool positioning, equipment operation, and height verification, potentially disrupting other livestock management tasks and reducing overall efficiency. Furthermore, if the trough height is not pre-adjusted when livestock need water, waiting for staff to arrive and adjust it may delay drinking and affect the fulfillment of their physiological needs. Therefore, designing a new livestock water trough height adjustment system is essential to address these issues. Summary of the Invention

[0004] This invention provides a livestock drinking trough height adjustment system to solve the above-mentioned problems in the prior art.

[0005] This invention is implemented as follows: a livestock watering trough height adjustment system, comprising: A base, on which a control mechanism is installed, a water tank is provided above the base, and an actuator is fixedly installed on the base. The control mechanism is used to sense livestock approaching the water tank and control the actuator to work. The actuator is used to drive the water tank to adjust its height in the vertical direction. The control mechanism includes multiple infrared sensors fixedly installed at different positions around the base. A controller is fixedly installed on the base. The infrared sensors are electrically connected to the controller. The actuator includes a bracket, which is fixedly installed on the base. A connecting seat is provided inside the bracket. One end of the connecting seat is fixedly installed on the outside of the water tank. Two spaced vertical rods pass through the connecting seat. One end of each vertical rod is fixedly installed on the base.

[0006] Preferably, multiple protective plates are fixedly installed on the base, and the protective plates are arranged on the outside of the infrared sensor and are used to protect the infrared sensor.

[0007] Preferably, the actuator further includes a lead screw, which is rotatably mounted on a base and a bracket. A connecting shaft is rotatably mounted on the top of the bracket. A first bevel gear is fixedly mounted on the upper end of the connecting shaft. A servo motor is fixedly mounted on the bracket. A second bevel gear is fixedly mounted on the output shaft end of the servo motor. The second bevel gear meshes with the first bevel gear. A protective cover is fixedly mounted on the top of the bracket, and the protective cover is installed outside the servo motor.

[0008] Preferably, the servo motor is electrically connected to a controller, which is used to control the operation of the servo motor.

[0009] Preferably, the base is provided with a liquid changing mechanism, which is connected to the water tank. When the water tank is moved to a lower position and the livestock are drinking, the liquid changing mechanism replaces the drinking water in the water tank.

[0010] Preferably, the fluid changing mechanism includes a conduit, which is fixedly installed at the bottom of the water tank and communicates with the water tank. The lower end of the conduit can pass through the base. A vertical pipe is fixedly installed on the base. The upper end of the vertical pipe is open. A top block is fixedly installed on the top of the vertical pipe. A sealing plug is provided in the upper port of the conduit. A support rod is fixedly installed in the water tank. A spring is fixedly connected between the support rod and the sealing plug. The top block can rest on the sealing plug.

[0011] Preferably, the liquid replacement mechanism further includes a water pump, which is fixedly installed on the base. The inlet pipe of the water pump is connected to the lower end of the conduit, and the outlet pipe of the water pump is connected to an external water tank. A water injection pump is fixedly installed on the base. The outlet pipe of the water injection pump is connected to the lower end of the conduit, and the inlet pipe of the water injection pump is connected to an external drinking water source.

[0012] Preferably, the water tank is equipped with a cleaning mechanism, which is mounted on a bracket and cleans the inner wall of the water tank as it moves up and down.

[0013] Preferably, the cleaning mechanism includes two belts distributed on both sides of the water tank. The outer side of the belts is provided with evenly distributed protruding particles. The outer side of the belts is in contact with the inner wall of the water tank. The belts are provided with two rotating rollers arranged at intervals. Each rotating roller is fixedly mounted with a rotating shaft. The rotating shaft is rotatably mounted on the water tank and passes through the water tank.

[0014] Preferably, the cleaning mechanism further includes four transmission wheels, which are fixedly installed at the ends of the rotating shaft. Friction strips are fixedly installed on both sides of the bracket, and the friction strips are in contact with the transmission wheels and are transmitted between them through friction.

[0015] Compared with related technologies, the livestock watering trough height adjustment system provided by the present invention has the following beneficial effects: This system uses infrared sensors to detect approaching livestock. The controller receives the signal and activates a servo motor, which in turn drives the actuator to automatically adjust the water trough height without manual intervention, reducing labor costs. This automated adjustment frees up staff time from adjusting the water trough height, allowing them to focus on other aspects of livestock management and improving overall efficiency. The system can detect livestock approach in real time and automatically adjust the water trough height, ensuring that livestock can drink at the appropriate height immediately when needed, meeting their physiological needs and promoting healthy growth. This system automatically adjusts the water trough height when livestock approach, eliminating the need for manual adjustment and resolving issues such as inefficiency and potential interference with livestock drinking in existing systems.

[0016] When the water trough moves to a lower position and livestock drink, the water-changing mechanism automatically replaces the drinking water. This avoids problems such as bacterial growth and spoilage from prolonged storage of drinking water, ensuring that livestock always have access to fresh, clean water, which is beneficial to their healthy growth and reduces diseases caused by drinking unclean water. During the trough's up-and-down movement, the cleaning mechanism's belt rotates through friction with the friction strips. The protruding particles on the belt scrape the inner wall of the trough, effectively removing dirt, impurities, algae, and other debris, keeping the trough's interior clean. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a side view of the present invention; Figure 4 This is an enlarged schematic diagram of a portion of the upper structure of the bracket in this invention; Figure 5 This is an enlarged cross-sectional view of a portion of the structure at the water tank in this invention. Figure 1 ; Figure 6 This is an enlarged cross-sectional view of a portion of the structure at the water tank in this invention. Figure 2 ; Figure 7 For the present invention Figure 5 Enlarged diagram of point A in the diagram.

[0018] In the diagram: 1. Base; 2. Control mechanism; 3. Water tank; 4. Actuator; 5. Infrared sensor; 6. Controller; 7. Protective plate; 8. Bracket; 9. Connecting seat; 10. Vertical rod; 11. Lead screw; 12. Connecting shaft; 13. First bevel gear; 14. Servo motor; 15. Second bevel gear; 16. Fluid changing mechanism; 17. Guide tube; 18. Vertical pipe; 19. Top block; 20. Sealing plug; 21. Support rod; 22. Spring; 23. Water pump; 24. Water injection pump; 25. Cleaning mechanism; 26. Belt; 27. Rotating roller; 28. Rotating shaft; 29. ​​Transmission wheel; 30. Friction strip; 31. Protective cover. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] A preferred embodiment of the livestock watering trough height adjustment system provided by the present invention is as follows: Figures 1 to 7 As shown: A livestock water trough height adjustment system includes: The base 1 has a control mechanism 2 installed on it. A water tank 3 is located above the base 1. An actuator 4 is fixedly installed on the base 1. The control mechanism 2 is used to sense livestock approaching the water tank 3 and control the actuator 4 to work. The actuator 4 is used to drive the water tank 3 to adjust its height in the vertical direction. The control mechanism 2 includes multiple infrared sensors 5 fixedly installed at different positions around the base 1. A controller 6 is fixedly installed on the base 1, and the infrared sensors 5 are electrically connected to the controller 6. The actuator 4 includes a bracket 8, which is fixedly installed on the base 1. A connecting seat 9 is provided inside the bracket 8. One end of the connecting seat 9 is fixedly installed on the outside of the water tank 3. Two spaced vertical rods 10 pass through the connecting seat 9, and one end of the vertical rods 10 is fixedly installed on the base 1. Multiple protective plates 7 are fixedly installed on the base 1. The protective plates 7 are located on the outside of the infrared sensors 5 and are used to protect the infrared sensors 5.

[0022] The actuator 4 also includes a lead screw 11, which is rotatably mounted on the base 1 and the bracket 8. A connecting shaft 12 is rotatably mounted on the top of the bracket 8, and a first bevel gear 13 is fixedly mounted on the upper end of the connecting shaft 12. A servo motor 14 is fixedly mounted on the bracket 8, and a second bevel gear 15 is fixedly mounted on the output shaft end of the servo motor 14. The second bevel gear 15 meshes with the first bevel gear 13. A protective cover 31 is fixedly mounted on the top of the bracket 8, and the protective cover 31 is installed outside the servo motor 14. The servo motor 14 is electrically connected to the controller 6, which is used to control the operation of the servo motor 14.

[0023] In this embodiment, multiple infrared sensors 5 in the control mechanism 2 are fixedly installed at different positions around the base 1. These infrared sensors 5 can monitor the surrounding environment in real time. When livestock approach the water tank 3, the infrared sensors 5 at the corresponding positions will detect the approach signal of the livestock.

[0024] Infrared sensor 5, which detects the signal, transmits it as an electrical signal to controller 6, which is electrically connected to it. Controller 6, acting as the "brain" of the entire system, processes and analyzes the signal received from infrared sensor 5, determining that livestock are approaching and the water tank 3 needs adjustment. Based on the processing result, controller 6 sends a control command to servo motor 14 in actuator 4. Since servo motor 14 is electrically connected to controller 6, it receives the command and begins operation. After servo motor 14 starts, its output shaft rotates, driving the second bevel gear 15, which is fixedly mounted on the end of the output shaft, to rotate. The second bevel gear 15 meshes with the first bevel gear 13, which is fixedly mounted on connecting shaft 12. When the second bevel gear 15 rotates, it drives the first bevel gear 13 to rotate, thereby causing the connecting shaft 12 to rotate. The rotation of connecting shaft 12 drives the lead screw 11, which is rotatably mounted on base 1 and bracket 8, to rotate.

[0025] One end of the connecting seat 9 in the actuator 4 is fixedly installed on the outside of the water trough 3, and two spaced vertical rods 10 pass through the connecting seat 9. One end of the vertical rods 10 is fixedly installed on the base 1, which allows the connecting seat 9 to only move in a straight line along the vertical rods 10 in the vertical direction. When the lead screw 11 rotates, the connecting seat 9, which cooperates with the lead screw 11, will move in the vertical direction along the vertical rods 10 under the drive of the lead screw 11, thereby driving the water trough 3 to adjust its height in the vertical direction to meet the appropriate height requirements for livestock drinking water.

[0026] Multiple protective plates 7 are fixedly installed on the base 1 and positioned outside the infrared sensor 5. These plates protect the infrared sensor 5 from damage caused by livestock collisions or other external forces, ensuring its normal operation. A protective cover 31 is fixedly installed on the top of the bracket 8 and installed outside the servo motor 14. This protects the servo motor 14 from dust, moisture, and other contaminants that could affect its performance and lifespan.

[0027] Through the above series of processes, the system can automatically adjust the height of the water trough 3 when livestock approach, without human intervention. This solves the problems of low efficiency and potential impact on livestock drinking caused by the need for manual adjustment in existing systems.

[0028] The existing system cannot automatically adjust the water trough height when livestock approach, requiring manual operation, including steps such as positioning tools, operating equipment, and verifying height accuracy, which consumes a lot of manpower. The new system, however, uses an infrared sensor 5 to detect the approach of livestock. The controller 6 receives the signal and controls the servo motor 14 to work, which in turn drives the actuator 4 to automatically adjust the height of the water trough 3 without human intervention, thus reducing labor costs.

[0029] Manually adjusting the water trough height can disrupt other livestock management tasks, impacting overall efficiency. This system automates the adjustment, freeing staff from spending time on water trough height adjustments and allowing them to focus on other aspects of livestock management, thus improving overall efficiency. The system can sense livestock approaching in real time and automatically adjust the water trough height, ensuring that livestock can drink at the appropriate height immediately when needed, promptly meeting their physiological needs and promoting their healthy growth.

[0030] In a further preferred embodiment of the present invention: A fluid exchange mechanism 16 is provided on the base 1. The fluid exchange mechanism 16 is connected to the water tank 3. When the water tank 3 is moved to a lower position and the livestock are drinking, the fluid exchange mechanism 16 replaces the drinking water in the water tank 3. The fluid exchange mechanism 16 includes a conduit 17, which is fixedly installed at the bottom of the water tank 3 and is connected to the water tank 3. The lower end of the conduit 17 can pass through the base 1. A vertical pipe 18 is fixedly installed on the base 1. The upper end of the vertical pipe 18 is open. A top block 19 is fixedly installed on the top of the vertical pipe 18. A sealing plug 20 is provided in the upper port of the conduit 17. A support rod 21 is fixedly installed in the water tank 3. A spring 22 is fixedly connected between the support rod 21 and the sealing plug 20. The top block 19 can rest on the sealing plug 20. The liquid replacement mechanism 16 also includes a water pump 23, which is fixedly installed on the base 1. The inlet pipe of the water pump 23 is connected to the lower end of the conduit 17, and the outlet pipe of the water pump 23 is connected to the external water tank. A water injection pump 24 is fixedly installed on the base 1. The outlet pipe of the water injection pump 24 is connected to the lower end of the conduit 17, and the inlet pipe of the water injection pump 24 is connected to the external drinking water source.

[0031] A cleaning mechanism 25 is installed inside the water tank 3. The cleaning mechanism 25 is mounted on the support 8 and cleans the inner wall of the water tank 3 as it moves up and down. The cleaning mechanism 25 includes two belts 26 distributed on both sides of the water tank 3. The outer surface of each belt 26 has evenly distributed protruding particles and contacts the inner wall of the water tank 3. Two vertically spaced rotating rollers 27 are installed inside each belt 26. A rotating shaft 28 is fixedly mounted on each roller 27 and rotatably mounted on and through the water tank 3. The cleaning mechanism 25 also includes four drive wheels 29, which are fixedly mounted on the ends of the rotating shafts 28. Friction strips 30 are fixedly mounted on both sides of the support 8. The friction strips 30 contact the drive wheels 29, and the two are driven by friction.

[0032] In this embodiment, when the water tank 3 is in the high position, the sealing plug 20 inside the upper port of the conduit 17 separates from the top block 19 under the pulling force of the spring 22. At this time, the inside of the water tank 3 is relatively isolated from the outside (except for a small amount of gas exchange such as normal evaporation), and the drinking water in the water tank 3 remains in a static state, and no automatic liquid replacement will occur.

[0033] As the water trough 3 descends to its lowest position (when livestock are drinking), the conduit 17 also descends under the action of the actuator. When it descends to a certain position, the top block 19 at the top of the vertical pipe 18 will press against the sealing plug 20, overcoming the tension of the spring 22, and push the sealing plug 20 upward, thus opening the upper port of the conduit 17.

[0034] During the pumping process, the water pump 23, which is fixedly installed on the base 1, starts to work. The inlet pipe of the water pump 23 is connected to the lower end of the conduit 17, and the outlet pipe is connected to the external water tank. Under the action of the water pump 23, the old drinking water in the water tank 3 is pumped out through the conduit 17 and discharged into the external water tank through the outlet pipe.

[0035] Once some or all of the old water in the water tank 3 has been pumped out, the water pump 24, which is fixedly installed on the base 1, begins to operate. The drain pipe of the water pump 24 is connected to the lower end of the conduit 17, and the inlet pipe is connected to an external drinking water source. The water pump 24 draws in clean, new drinking water from outside through the inlet pipe, and then injects it into the water tank 3 through the drain pipe and conduit 17, completing the drinking water replacement.

[0036] After the livestock finish drinking, the water trough 3 rises under the action of the actuator. The conduit 17 rises, the top block 19 separates from the sealing plug 20, and the sealing plug 20 returns to the upper port of the conduit 17 under the pulling force of the spring 22, sealing the port to prevent water leakage from the water trough 3 and stopping the liquid replacement process.

[0037] When the water tank 3 moves downward under the drive of the actuator, the transmission wheel 29 installed at the end of the rotating shaft 28 descends along with the water tank 3. Since friction strips 30 are fixedly installed on both sides of the bracket 8 and are in contact with the transmission wheel 29, relative motion occurs between the transmission wheel 29 and the friction strips 30 during the descent of the water tank 3. Through friction, the transmission wheel 29 rotates. The transmission wheel 29 is fixedly installed on the rotating shaft 28, and its rotation drives the rotating shaft 28 to rotate. The rotation of the rotating shaft 28, in turn, drives the rotating roller 27 fixedly installed on it to rotate. Because the belt 26 has two vertically spaced rotating rollers 27, the rotation of the rollers 27 drives the belt 26 to move. The outer surface of the belt 26 has evenly distributed protruding particles, and the outer surface of the belt 26 is in contact with the inner wall of the water tank 3. During the movement of the belt 26, the protruding particles scrape the inner wall of the water tank 3, thereby cleaning away dirt and impurities adhering to the inner wall of the water tank 3, achieving the purpose of cleaning the inner wall of the water tank 3.

[0038] When the water tank 3 moves upward under the drive of the actuator, the transmission wheel 29 will also rotate under the friction force with the friction strip 30, thereby driving the rotating roller 27 and belt 26 to rotate in the opposite direction, continuing to clean the inner wall of the water tank 3 until the water tank 3 returns to the high position, completing a complete cleaning process.

[0039] When the water trough moves to a lower position and livestock drink, the water-changing mechanism automatically replaces the drinking water. This avoids problems such as bacterial growth and spoilage from prolonged storage of drinking water, ensuring that livestock always have access to fresh, clean water, which is beneficial to their healthy growth and reduces diseases caused by drinking unclean water. During the trough's up-and-down movement, the cleaning mechanism's belt rotates through friction with the friction strips. The protruding particles on the belt scrape the inner wall of the trough, effectively removing dirt, impurities, algae, and other debris, keeping the trough's interior clean.

[0040] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0041] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A livestock watering trough height adjustment system, characterized in that, include: A base (1) is provided with a control mechanism (2) installed on the base (1), a water tank (3) is provided above the base (1), and an actuator (4) is fixedly installed on the base (1). The control mechanism (2) is used to sense when livestock approach the water tank (3) and control the actuator (4) to work. The actuator (4) is used to drive the water tank (3) to adjust its height in the vertical direction. The control mechanism (2) includes multiple infrared sensors (5) fixedly installed at different positions around the base (1). A controller (6) is fixedly installed on the base (1). The infrared sensors (5) are electrically connected to the controller (6). The execution mechanism (4) includes a bracket (8). The bracket (8) is fixedly installed on the base (1). A connecting seat (9) is provided inside the bracket (8). One end of the connecting seat (9) is fixedly installed on the outside of the water tank (3). Two vertical rods (10) are spaced apart and pass through the connecting seat (9). One end of the vertical rod (10) is fixedly installed on the base (1).

2. The livestock watering trough height adjustment system as described in claim 1, characterized in that, Multiple protective plates (7) are fixedly installed on the base (1). The protective plates (7) are set on the outside of the infrared sensor (5) and are used to protect the infrared sensor (5).

3. The livestock watering trough height adjustment system as described in claim 1, characterized in that, The actuator (4) also includes a lead screw (11), which is rotatably mounted on the base (1) and the bracket (8). A connecting shaft (12) is rotatably mounted on the top of the bracket (8). A first bevel gear (13) is fixedly mounted on the upper end of the connecting shaft (12). A servo motor (14) is fixedly mounted on the bracket (8). A second bevel gear (15) is fixedly mounted on the output shaft end of the servo motor (14). The second bevel gear (15) meshes with the first bevel gear (13). A protective cover (31) is fixedly mounted on the top of the bracket (8). The protective cover (31) is mounted outside the servo motor (14).

4. The livestock watering trough height adjustment system as described in claim 3, characterized in that, The servo motor (14) is electrically connected to the controller (6), which is used to control the operation of the servo motor (14).

5. The livestock watering trough height adjustment system as described in claim 1, characterized in that, The base (1) is provided with a liquid changing mechanism (16), which is connected to the water tank (3). When the water tank (3) is moved to a low position and the livestock are drinking water, the liquid changing mechanism (16) replaces the drinking water in the water tank (3).

6. The livestock watering trough height adjustment system as described in claim 5, characterized in that, The fluid exchange mechanism (16) includes a conduit (17), which is fixedly installed at the bottom of the water tank (3) and communicates with the water tank (3). The lower end of the conduit (17) can pass through the base (1). A vertical pipe (18) is fixedly installed on the base (1). The upper end of the vertical pipe (18) is open. A top block (19) is fixedly installed on the top of the vertical pipe (18). A sealing plug (20) is provided in the upper port of the conduit (17). A support rod (21) is fixedly installed in the water tank (3). A spring (22) is fixedly connected between the support rod (21) and the sealing plug (20). The top block (19) can press against the sealing plug (20).

7. The livestock watering trough height adjustment system as described in claim 6, characterized in that, The liquid exchange mechanism (16) also includes a water pump (23), which is fixedly installed on the base (1). The inlet pipe of the water pump (23) is connected to the lower end of the conduit (17), and the outlet pipe of the water pump (23) is connected to the external water tank. A water injection pump (24) is fixedly installed on the base (1). The outlet pipe of the water injection pump (24) is connected to the lower end of the conduit (17), and the inlet pipe of the water injection pump (24) is connected to the external drinking water source.

8. The livestock watering trough height adjustment system as described in claim 1, characterized in that, The water tank (3) is equipped with a cleaning mechanism (25), which is mounted on a bracket (8) and cleans the inner wall of the water tank (3) as the water tank (3) moves up and down.

9. The livestock watering trough height adjustment system as described in claim 8, characterized in that, The cleaning mechanism (25) includes two belts (26) distributed on both sides of the water tank (3). The outer side of the belts (26) is provided with evenly distributed protruding particles. The outer side of the belts (26) is in contact with the inner wall of the water tank (3). The belts (26) are provided with two rotating rollers (27) arranged at intervals. Each rotating roller (27) is fixedly mounted with a rotating shaft (28). The rotating shaft (28) is rotatably mounted on the water tank (3) and passes through the water tank (3).

10. The livestock watering trough height adjustment system as described in claim 9, characterized in that, The cleaning mechanism (25) also includes four drive wheels (29), which are fixedly installed at the end of the rotating shaft (28). Friction strips (30) are fixedly installed on both sides of the bracket (8). The friction strips (30) are in contact with the drive wheels (29) and are transmitted through friction.

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