Laying hen drinking water nipple flow measuring device

By designing an automated laminated hen drinking water nipple flow measurement device, using electric push rods and controllers to achieve uninvolved flow measurement, solving the problem of manual measurement waste and timing errors in the prior art, and providing a simple and accurate measurement solution.

CN223271937UActive Publication Date: 2025-08-26SHANDONG YUNJI AGRI & ANIMAL HUSBANDRY CO LTD
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Patent Information

Application Number
CN202421839187.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-08-26
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

In the prior art, the measurement of the nipple flow of the laminated hen drinking water requires manual participation, which wastes manpower and time and is susceptible to human factors, has large timing errors and is inconvenient to operation.

Method used

A flow measurement device for drinking water nipple in the laying hens including fixed components and water intake components is designed. The water intake process is automatically controlled by an electric push rod and a controller. The measuring cup is fixed on the water line pipe. The water intake time is set through the controller. The electric push rod automatically squeezes the drinking water nipple to achieve flow measurement without manual participation.

Benefits of technology

Save manpower and time, reduce the influence of human factors, simple measurement process, adapt to different waterline pipe diameters, strong adaptability, and accurate measurement results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a laying hen drinking water nipple flow measuring device which comprises a fixing assembly and a water taking assembly, the fixing assembly comprises a hoop, the hoop is symmetrically and rotatably connected with a connecting rod, the other end of the connecting rod penetrates through and is slidably connected with a sliding rod, the sliding rod is rotatably connected with an arc buckle used for clamping a waterline pipe, and the water taking assembly comprises a supporting plate. When the device is used, the device is fixedly connected with a waterline pipe through the arc buckles, the water taking time is set through the controller, the controller drives the electric push rod to extend, the water taking time is set through the arc buckles, the water taking time is set through the controller, the water taking time is set through the controller, and the water taking time is set through the controller. The electric push rod makes contact with and squeezes the drinking water nipple, water in the waterline pipe flows out of the drinking water nipple, after the water taking time is up, the controller automatically controls the electric push rod to retract, the water taking process is ended, manual participation is not needed in the whole process, the water taking process is not affected by human factors, and use is convenient.
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Description

Technical Field

[0001] The utility model relates to the technical field of breeding equipment, in particular to a laying hen drinking nipple flow measuring device. Background Art

[0002] In laying hen farms, drinking water is supplied to laying hens via dedicated water lines with spaced-apart drinking nipples. When the hens touch the nipples, drinking water from the line flows out through the nipples for the birds to drink. These drinking nipples improve drinking water hygiene, reduce water waste, optimize the living environment, and reduce costs for the farm.

[0003] During the use of laying hen drinking nipples, in order to ensure that the flow rate of the laying hen drinking nipples is within the normal range, provide the laying hens with sufficient drinking water, and avoid losses caused by water shortage and water outage due to low water flow, it is usually necessary to measure the flow rate of the laying hen drinking nipples. The current conventional measurement method is: two farmers are required, one of whom holds a measuring cup with a scale in one hand, places the measuring cup under the nipple, and prepares to touch the drinking nipple with the other hand; the other farmer holds a stopwatch and starts timing; when the two farmers are ready, they press the stopwatch to start, and at the same time, their hands touch the drinking nipple, and water flows out of the nipple and drips into the measuring cup. When the 300-second timing time is reached, the timing is stopped, and the hand leaves the drinking nipple at the same time, and the volume of water in the measuring cup is read. The volume / 300 seconds * 60 seconds is the flow rate value of the nipple per minute.

[0004] Conventional measurement practices waste manpower and time in actual application. In addition, due to human factors, there are also timing errors during operation, making it very inconvenient to use. Utility Model Content

[0005] In order to solve the problems existing in the above-mentioned prior art, a laying hen drinking nipple flow measuring device is provided. The device is simple to operate and has a reasonable structure. The device includes a fixing component and a water intake component. The fixing component includes a clamping hoop, which is detachably mounted on a measuring cup. The clamping hoop is symmetrically rotated and connected to a connecting rod. A sliding rod is passed through the other end of the connecting rod and is slidably connected. The ends of the two sliding rods close to each other are both rotatably connected to an arc buckle for clamping the water line pipe. The water intake component includes a support plate mounted on the clamping hoop. An electric push rod is mounted on the end of the support plate close to the drinking nipple. The electric push rod cooperates with the drinking nipple. A controller is also mounted on the support plate. The controller is connected to the water supply nipple. The electric push rod is electrically connected. When in use, the device is fixedly connected to the water line pipe through an arc buckle. The water extraction time is set by the controller in the water extraction component, and the controller drives the electric push rod to extend. The end of the electric push rod close to the drinking nipple contacts and squeezes the drinking nipple. The water in the water line pipe flows out from the drinking nipple, and the water extraction process begins. After the water extraction time is up, the controller automatically controls the electric push rod to retract, ending the water extraction process. No human participation is required in the entire process, saving manpower and time. The water extraction process is not affected by human factors and is easy to use.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A laying hen drinking nipple flow measurement device, comprising a measuring cup and:

[0008] A fixing assembly, the fixing assembly comprising a clamp, the clamp cooperates with the measuring cup, the clamp is symmetrically rotatably connected to a connecting rod, the other end of the connecting rod is penetrated and slidably connected to a sliding rod, and the ends of the two sliding rods close to each other are both rotatably connected to an arc buckle for clamping the waterline pipe;

[0009] A water intake assembly includes a support plate mounted on the clamp, an electric push rod is mounted on one end of the support plate close to the drinking nipple, the electric push rod cooperates with the drinking nipple, and a controller is also mounted on the support plate, the controller is electrically connected to the electric push rod.

[0010] Preferably, the hoop is detachably connected to the measuring cup, and the hoop is in close contact with the side wall of the measuring cup.

[0011] Preferably, the clamp is symmetrically fixedly connected with a rotating shaft, and a first through hole penetrating the connecting rod is opened at one end of the connecting rod close to the clamp, and the rotating shaft passes through the first through hole, and the rotating shaft is in sliding contact with the inner wall of the first through hole.

[0012] Preferably, a second through hole penetrating the connecting rod is formed at one end of the connecting rod close to the sliding rod, the sliding rod passes through the second through hole, and the sliding rod is in sliding contact with the inner wall of the second through hole.

[0013] Preferably, the connecting rod is passed through one end of the sliding rod and is provided with a threaded hole, the threaded hole is connected to the second through hole, a locking bolt is passed through the threaded hole and threadedly connected, and the locking bolt is passed through the second through hole at one end close to the second through hole and is in close contact with the sliding rod.

[0014] Preferably, the cross-sectional shape of the second through hole and the sliding rod includes a rectangle.

[0015] Preferably, the surface where the arc buckle contacts the waterline pipe and the surface where the clamp contacts the measuring cup are both provided with an anti-slip layer, and the material of the anti-slip layer includes rubber.

[0016] Preferably, the clamp is made of galvanized iron plate.

[0017] Preferably, the controller includes a control module, a display device and control buttons, the display device and the control buttons are electrically connected to the control module respectively, and the control module is electrically connected to the electric push rod.

[0018] Preferably, the control module includes a single chip microcomputer.

[0019] Preferably, the display device includes an LED display screen.

[0020] Preferably, the display device includes a digital tube.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The utility model is provided with a fixing component and a water taking component. When in use, the measuring cup is fixed on the water line pipe by the fixing component. The cup mouth of the measuring cup is located below the drinking nipple. The water taking time is set by the controller in the water taking component. The controller drives the electric push rod to extend. The end of the electric push rod close to the drinking nipple contacts and squeezes the drinking nipple. The water in the water line pipe flows out from the drinking nipple, and the water taking process begins. After the water taking time is up, the controller automatically controls the electric push rod to retract, and the water taking process ends. No human participation is required in the whole process, saving manpower and time. The water taking process is not affected by human factors and is easy to use.

[0023] 2. The fixing assembly in the utility model includes a clamp, which is symmetrically rotatably connected to a connecting rod, and a sliding rod is passed through and slidably connected to the other end of the connecting rod. The ends of the two sliding rods close to each other are rotatably connected to an arc buckle for clamping the waterline pipe. When in use, the sliding rod and the connecting rod slide relative to each other, thereby changing the distance between the arc buckles, which is convenient for fixing the device on or removing it from the waterline pipe, and is easy to use. At the same time, since the distance between the arc buckles is adjustable, the device is also suitable for waterline pipes of different diameters and has strong adaptability; and the surface contacting the arc buckle with the waterline pipe and the surface contacting the clamp with the measuring cup are both provided with an anti-slip layer, so that the fixation between the device and the waterline pipe and the clamp and the measuring cup is more firm and safer.

[0024] 3. The water intake assembly in the utility model includes a support plate installed on the clamp, and an electric push rod is installed at one end of the support plate close to the drinking nipple, and the electric push rod cooperates with the drinking nipple. A controller is also installed on the support plate, and the controller is electrically connected to the electric push rod. When in use, the water intake time is set through the controller, and the controller controls the extension of the electric push rod. The electric push rod contacts and squeezes the drinking nipple, and the water in the water line pipe flows out of the drinking nipple, and the water intake process starts. After the water intake time is up, the controller automatically controls the electric push rod to retract, and the water intake process ends. The entire water intake process does not require manual participation, and with the cooperation of the controller, the duration of the water intake time can be freely set according to actual needs, so that it can adapt to the measurement needs of different markets and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 This is the main view of the overall structure of the utility model;

[0027] Figure 2 This is a side view of the overall structure of the utility model (working state);

[0028] Figure 3 This is a top view of the fixed component structure in the utility model;

[0029] Figure 4 This is the main view of the fixed component structure in the utility model;

[0030] Figure 5 This is a side view of the fixed component structure in the utility model;

[0031] Figure 6 This is a side view of the water intake assembly structure of the utility model (initial state);

[0032] Figure 7This is a side view of the water intake assembly structure of the utility model (working state);

[0033] Figure 8 This is a schematic diagram of controller connection in the utility model.

[0034] Description of the accompanying drawings:

[0035] 100 Measuring cup; 110 Clamp; 111 Connecting rod; 112 Sliding rod; 113 Arc buckle; 114 Rotating shaft; 115 First through hole; 116 Second through hole; 117 Threaded hole; 118 Locking bolt; 120 Support plate; 121 Electric push rod; 122 Control module; 123 Display device; 124 Control button; 125 Relay; 126 ULN2003 driver chip; 200 Waterline pipe; 201 Drinking nipple. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] like Figure 1-2 As shown, this embodiment provides a laying hen drinking nipple flow measurement device, including a measuring cup 100 and further comprising:

[0038] The fixing assembly includes a clamp 110, which cooperates with the measuring cup 100. The clamp 110 is symmetrically connected to a connecting rod 111. The other end of the connecting rod 111 is penetrated and slidably connected to a sliding rod 112. The ends of the two sliding rods 112 that are close to each other are both rotatably connected to an arc buckle 113 for clamping the waterline pipe 200;

[0039] The water intake assembly includes a support plate 120 installed on the clamp 110. An electric push rod 121 is installed at one end of the support plate 120 close to the drinking nipple 201. The electric push rod 121 cooperates with the drinking nipple 201. A controller is also installed on the support plate 120, and the controller is electrically connected to the electric push rod 121.

[0040] Taking the water extraction time of 300 seconds as an example, the method of using the device is explained.

[0041] When in use, the measuring cup 100 is inserted into the clamp 110, and the fastening bolts on both sides of the clamp 110 are tightened to make the clamp 110 in close contact with the side wall of the measuring cup 100, thereby completing the fixing of the clamp 110 and the measuring cup 100. The structure and use of the clamp 110 belong to the existing technology and will not be described in detail in this embodiment.

[0042] Then, move the two sliding rods 112 away from each other, thereby increasing the distance between the two arc buckles 113, and pass the waterline pipe 200 between the two arc buckles 113. Move the two sliding rods 112 closer to each other, so that the arc buckle 113 contacts and squeezes the side wall of the waterline pipe 200, completing the fixing work between the arc buckle 113 and the waterline pipe 200, and fixing the device on the waterline pipe 200. At this time, the cup mouth of the measuring cup 100 is located below the drinking nipple 201 of the waterline pipe 200 whose flow rate is to be measured, and the electric push rod 121 is located on one side of the drinking nipple 201 of the water line pipe 200 whose flow rate is to be measured.

[0043] The controller is manually operated, and the controller controls the electric push rod 121 to extend, so that one end of the electric push rod 121 contacts the drinking nipple 201 and then stops extending. After the water extraction time is set by the controller (taking 300 seconds as an example), the water extraction process is started. Under the control of the controller, the controller automatically controls the electric push rod 121 to continue to extend to the longest length and then automatically stops. The electric push rod 121 squeezes the drinking nipple 201, and the water in the water line pipe 200 flows out of the drinking nipple 201. The electric push rod 121 stops extending and remains at the current length unchanged, and the water falls from the drinking nipple 201 into the measuring cup 100, and the water extraction process begins.

[0044] After the water extraction time is reached, under the control of the controller, the controller controls the electric push rod 121 to retract and reset, the electric push rod 121 retracts and disengages from the drinking nipple 201, the drinking nipple 201 is closed, and the water in the water line pipe 200 no longer flows out of the drinking nipple 201, and the water extraction process ends.

[0045] The volume of water in the measuring cup 100 is read according to the scale on the measuring cup 100 , and the volume is divided by 300 and then multiplied by 60, which is the flow rate value of the drinking nipple 201 per minute.

[0046] like Figure 1-8 As shown, in one embodiment of the laying hen drinking nipple flow measurement device of the utility model,

[0047] Furthermore, the hoop 110 is detachably connected to the measuring cup 100 , and the hoop 110 is in close contact with the side wall of the measuring cup 100 .

[0048] Furthermore, the clamp 110 is symmetrically fixedly connected to the rotating shaft 114, and a first through hole 115 is opened at one end of the connecting rod 111 close to the clamp 110, and the rotating shaft 114 passes through the first through hole 115, and the rotating shaft 114 is in sliding contact with the inner wall of the first through hole 115.

[0049] Furthermore, a second through hole 116 penetrating the connecting rod 111 is defined at one end of the connecting rod 111 close to the sliding rod 112 . The sliding rod 112 penetrates the second through hole 116 , and the sliding rod 112 is in sliding contact with the inner wall of the second through hole 116 .

[0050] Furthermore, a threaded hole 117 is provided at one end of the connecting rod 111 through which the sliding rod 112 is passed. The threaded hole 117 is connected to the second through hole 116. A locking bolt 118 is passed through and threadedly connected to the threaded hole 117. The locking bolt 118 is passed through the second through hole 116 at one end close to the second through hole 116 and is in close contact with the sliding rod 112.

[0051] Furthermore, the cross-sectional shape of the second through hole 116 and the sliding rod 112 includes a rectangle.

[0052] Furthermore, the surface where the arc buckle 113 contacts the waterline pipe 200 and the surface where the clamp 110 contacts the measuring cup 100 are both provided with an anti-slip layer, and the material of the anti-slip layer includes rubber.

[0053] Furthermore, the material of the clamp 110 is galvanized iron plate.

[0054] Furthermore, the controller includes a control module 122 , a display device 123 and a control button 124 . The display device 123 and the control button 124 are electrically connected to the control module 122 , respectively. The control module 122 is electrically connected to the electric push rod 121 .

[0055] Furthermore, the control module 122 includes a single chip microcomputer.

[0056] Furthermore, the display device 123 includes an LED display screen.

[0057] Furthermore, the display device 123 includes a digital tube.

[0058] In this embodiment, the surface where the arc buckle 113 contacts the waterline pipe 200, and the surface where the clamp 110 contacts the measuring cup 100 are both provided with an anti-slip layer. The material of the anti-slip layer includes rubber. On the one hand, the anti-slip layer can effectively improve the density of the connection between the clamp 110 and the measuring cup 100, making the connection between the clamp 110 and the measuring cup 100 more firmly. On the other hand, since the anti-slip layer is soft, it can also effectively prevent the clamp 110 from directly contacting the measuring cup 100 and damaging the measuring cup 100.

[0059] The cross-sectional shape of the second through hole 116 and the sliding rod 112 is set to be a rectangle. Under the cooperation of the second through hole 116 and the sliding rod 112, the sliding rod 112 can only slide relatively in the second through hole 116 but cannot rotate relative to the second through hole 116.

[0060] The single-chip microcomputer is an AT89C51 series single-chip microcomputer. The pins of the single-chip microcomputer are electrically connected to the ULN2003 driver chip 126. The pins of the ULN2003 driver chip 126 are electrically connected to a plurality of relays 125. The electric push rod 121 is extended and retracted by the positive and negative connection of the drive circuit. That is, when the drive circuit is connected to the power supply in a positive direction, the electric push rod 121 is extended. When the drive circuit is connected to the power supply in a reverse direction, the electric push rod 121 is retracted. The plurality of relays 125 are divided into forward relays and reverse relays. The forward relay is set on the electric push rod 121. The forward circuit of the electric push rod 121 is arranged on the reverse circuit of the electric push rod 121. The forward circuit and the reverse circuit are both electrically connected to the electric push rod 121. The single-chip microcomputer realizes the switching of the forward circuit and the reverse circuit by respectively controlling the attraction and disconnection of the forward relay and the reverse relay. The connection of the control circuit of the electric push rod 121, the switching of the circuit through the relay 125, and the principle and procedure of the single-chip microcomputer controlling the attraction and disconnection of the relay 125 all belong to the prior art and can be easily obtained from the Internet and the market, so they are not described in detail in this embodiment.

[0061] The control buttons 124 are used for human-computer interaction and include a set button, an increase button, a decrease button, a save button, an initialization button, a reset button, and a start button. The set button, increase button, decrease button, and save button are membrane buttons mounted on the housing of the control module 122. The initialization button, reset button, and start button are conventional buttons mounted on the support plate 120.

[0062] The display device 123 can be an LED display screen or an 8-segment digital tube. In this embodiment, an 8-segment digital tube is used.

[0063] The setting button is used to start the setting function. After pressing the setting button, the setting function is started. The water extraction time is modified by increasing the button and decreasing the button. After the water extraction time is set, press the save button and the water extraction time is saved in the microcontroller.

[0064] The initialization button is used to adjust the initial length of the electric push rod 121. When the initialization button is long pressed, the electric push rod 121 extends and contacts the drinking nipple 201 but does not squeeze the drinking nipple 201. At this time, water does not flow out.

[0065] Press the start button, the single chip microcomputer starts the countdown, and at the same time, the single chip microcomputer controls the electric push rod 121 to continue to extend, the electric push rod 121 squeezes the drinking nipple 201, and the water flows into the measuring cup 100 from the drinking nipple 201. When the countdown ends, the single chip microcomputer controls the electric push rod 121 to automatically reset, and the electric push rod 121 no longer squeezes the drinking nipple 201, and the water collection process ends.

[0066] When in use, the measuring cup 100 is inserted into the clamp 110, and the fastening bolts on both sides of the clamp 110 are tightened so that the anti-slip layer of the clamp 110 is in close contact with the side wall of the measuring cup 100. In addition, with the cooperation of the rotating shaft 114 and the first through hole 115, the clamp 110 and the measuring cup 100 can rotate relative to each other around the connecting rod 111, so that the measuring cup 100 always remains vertical, which is conducive to maintaining the stability of the measuring cup 100 during the water collection process.

[0067] 11. The second end of the water line pipe 200 is tightened to fix the second end of the water line pipe 200. The second end of the water line pipe 200 is tightened to fix the second end of the water line pipe 200. The second end of the water line pipe 200 is tightened to fix the second end of the water line pipe 200. The second end of the water line pipe 200 is tightened to fix the second end of the water line pipe 200.

[0068] Press the set button to start the setting function. Use the increase and decrease buttons to modify the water extraction time. After the water extraction time is set, press the save button and the water extraction time is saved in the microcontroller.

[0069] Long press the initialization button, the single chip microcomputer controls the electric push rod 121 to extend, the electric push rod 121 contacts the drinking nipple 201 but does not squeeze the drinking nipple 201, at this time, the water does not flow out.

[0070] Press the start button, the single chip microcomputer starts the countdown, and at the same time, the single chip microcomputer controls the electric push rod 121 to continue to extend, the electric push rod 121 squeezes the drinking nipple 201, and the water flows into the measuring cup 100 from the drinking nipple 201. When the countdown ends, the single chip microcomputer controls the electric push rod 121 to automatically reset, and the electric push rod 121 no longer squeezes the drinking nipple 201, and the water collection process ends.

[0071] The volume of water in the measuring cup 100 is read according to the scale on the measuring cup 100 , and after conversion according to the set time, it is the flow rate value of the drinking nipple 201 per minute.

[0072] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A laying hen drinking nipple flow measurement device, comprising a measuring cup (100), characterized in that: Also includes: A fixing assembly, the fixing assembly comprising a hoop (110), the hoop (110) being matched with the measuring cup (100), the hoop (110) being symmetrically connected to a connecting rod (111), the other end of the connecting rod (111) being passed through and slidably connected to a sliding rod (112), and the ends of the two sliding rods (112) being close to each other being rotatably connected to an arc buckle (113) for clamping the waterline pipe (200); A water intake assembly, comprising a support plate (120) mounted on the clamp (110), an electric push rod (121) mounted on one end of the support plate (120) close to the drinking nipple (201), the electric push rod (121) cooperating with the drinking nipple (201), and a controller mounted on the support plate (120), the controller being electrically connected to the electric push rod (121).

2. The laying hen drinking nipple flow measuring device according to claim 1, characterized in that: The hoop (110) is symmetrically fixedly connected to a rotating shaft (114); a first through hole (115) penetrating the connecting rod (111) is provided at one end of the connecting rod (111) close to the hoop (110); the rotating shaft (114) penetrates the first through hole (115); and the rotating shaft (114) is in sliding contact with the inner wall of the first through hole (115).

3. The laying hen drinking nipple flow measuring device according to claim 1, characterized in that: A second through hole (116) passing through the connecting rod (111) is provided at one end of the connecting rod (111) close to the sliding rod (112), the sliding rod (112) passes through the second through hole (116), and the sliding rod (112) is in sliding contact with the inner wall of the second through hole (116).

4. The laying hen drinking nipple flow measuring device according to claim 3, characterized in that: The connecting rod (111) is provided with a threaded hole (117) at one end through which the sliding rod (112) is passed. The threaded hole (117) is communicated with the second through hole (116). A locking bolt (118) is passed through and threadedly connected to the threaded hole (117). The locking bolt (118) is passed through the second through hole (116) at one end close to the second through hole (116) and is in close contact with the sliding rod (112).

5. The laying hen drinking nipple flow measuring device according to claim 4, characterized in that: The cross-sectional shape of the second through hole (116) and the sliding rod (112) comprises a rectangle.

6. The laying hen drinking nipple flow measurement device according to claim 1, characterized in that: The surface where the arc buckle (113) contacts the waterline pipe (200) and the surface where the hoop (110) contacts the measuring cup (100) are both provided with an anti-slip layer, and the material of the anti-slip layer includes rubber.

7. The laying hen drinking nipple flow measuring device according to claim 1, characterized in that: The material of the clamp (110) is galvanized iron plate.

8. The laying hen drinking nipple flow measurement device according to claim 1, characterized in that: The controller comprises a control module (122), a display device (123) and a control button (124); the display device (123) and the control button (124) are electrically connected to the control module (122) respectively; and the control module (122) is electrically connected to the electric push rod (121).

9. The laying hen drinking nipple flow measurement device according to claim 8, characterized in that: The control module (122) includes a single chip microcomputer.

10. The laying hen drinking nipple flow measurement device according to claim 9, characterized in that: The display device (123) includes a digital tube.