CN109906957B - Livestock feeding sensor - Google Patents
Livestock feeding sensor Download PDFInfo
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- CN109906957B CN109906957B CN201910319581.8A CN201910319581A CN109906957B CN 109906957 B CN109906957 B CN 109906957B CN 201910319581 A CN201910319581 A CN 201910319581A CN 109906957 B CN109906957 B CN 109906957B
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- 244000144972 livestock Species 0.000 title abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 116
- 230000006698 induction Effects 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 9
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Magnetic Resonance Imaging Apparatus (AREA)
- Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)
Abstract
The invention discloses a livestock feeding sensor, which comprises a metal cylinder body arranged vertically; the central rod is coaxially arranged in the metal cylinder body, and the front end of the central rod penetrates through the mounting hole of the metal cylinder body and extends to the outside; the metal induction ring is sleeved at the waist of the central rod and is used for contacting the metal cylinder body to connect a circuit when the central rod deflects by taking the mounting hole as a fulcrum. When the livestock eat, the livestock touch the central rod exposed out of the metal cylinder, so that the central rod deflects by taking the mounting hole of the metal cylinder as a fulcrum, and then the metal induction ring is contacted with the metal cylinder and is conducted, and a signal for throwing feed is generated; when excessive accumulation of the fed feed causes the feed to be in contact with the front end of the central rod, the central rod is communicated with the metal cylinder body to generate a signal for stopping feeding the feed, and the central rod can conform to the position change of the livestock in all directions, so that the whole device of the livestock is prevented from being damaged.
Description
Technical Field
The invention relates to the field of livestock breeding, in particular to a livestock feeding sensor.
Background
In livestock breeding processes, particularly in automated breeding processes, sensors are often used to ensure that the food or water quantity in the dish is kept at a normal level. For example, the electrode type liquid level meter has small impedance in water and large impedance in air, and can transmit the resistance change of the measuring cylinder contacting different substances to the secondary instrument, thereby realizing the functions of water level display, alarm, protection interlock and the like. However, the sensor can only alarm when the food or water in the food tray exceeds the limit in the feeding process, so that the food or water cannot be scattered due to excessive feeding; if the livestock stops feeding, the foodstuff or water which has been put in the tray cannot be consumed, which easily causes pollution of the foodstuff and water accumulated in the tray, and water cannot be added due to excessive foodstuff in the tray, or the foodstuff cannot be added due to excessive water, so that the livestock cannot feed normally.
Aiming at the problems, the adoption of a touch sensor such as a travel switch and the like in modern cultivation can detect whether the livestock eat in the food tray, and if the livestock leave, the feeding device can be stopped in time, so that the food is effectively saved. However, the existing touch sensor needs to be provided with two matched sensors in the food tray, so that the cost is increased, the fault point in maintenance operation is increased, and the touch sensor is easily damaged by livestock to cause failure.
Disclosure of Invention
The invention aims to provide a livestock feeding sensor which is exquisite in structure and convenient to use, and can flexibly respond to the action of livestock in the use process so as to generate corresponding signals.
To achieve the above object, the present invention provides a feeding sensor for livestock comprising:
a metal cylinder body which is vertically arranged and provided with a mounting hole at the bottom end;
the central rod is coaxially arranged in the metal cylinder; the front end of the central rod passes through the mounting hole and extends out of the metal cylinder body so as to realize the conduction with the metal cylinder body when the central rod contacts with feed;
and the metal induction ring is positioned in the metal cylinder body and sleeved at the waist part of the central rod, and is used for contacting with the metal cylinder body to complete a circuit when the central rod deflects by taking the mounting hole as a fulcrum.
Preferably, the insulation fixing head is fixed at the bottom end of the metal cylinder body, and the middle part of the insulation fixing head is provided with a through hole coaxial with the mounting hole.
Preferably, a counter bore which is coaxial with the through hole and has a diameter larger than that of the through hole is arranged at one end of the insulating fixing head, which is close to the metal cylinder; the elastic positioning block is arranged between the central rod and the mounting hole and used for resetting the central rod when the central rod deflects by taking the mounting hole as a fulcrum; the center of the elastic positioning block is provided with a connecting hole for the center rod to pass through and fixedly connected with the center rod, and the edge of the elastic positioning block is clamped and embedded in the inner wall of the counter bore so as to limit the relative position of the center rod and the insulating fixing head in the vertical direction.
Preferably, the lower fixing piece is fixed in the top end of the metal cylinder; the center of the lower fixing piece is provided with a groove used for allowing the tail end of the center rod to pass through and limiting the movable range of the tail end of the center rod.
Preferably, a limiting rod is fixed at the tail end of the central rod, and the limiting rod is perpendicular to the central rod; the groove specifically comprises a round hole for the center rod to pass through and a rectangular groove for the limiting rod to move, and the round hole is arranged at the middle point of the rectangular groove.
Preferably, the lower fixing piece is positioned above the upper fixing piece; the lower end face of the upper fixing plate is flush with the upper end face of the lower fixing plate, and the lower end face of the upper fixing plate is used for blocking the upper end face of the rectangular groove so as to limit the distance of the limiting rod moving vertically upwards.
Preferably, the metal induction ring also comprises an insulating sleeve which is positioned in the metal cylinder and sleeved on the periphery of the central rod, and the waist part of the insulating sleeve is provided with a boss surface which is upwards arranged and used for being sleeved and clamped with the metal induction ring; the metal induction ring is provided with an induction ring wire, the material of the central rod is metal, and the tail end of the central rod exposed out of the insulating sleeve is provided with a central rod wire used for connecting the induction ring wire.
Preferably, the insulation sleeve further comprises a jacking screw penetrating through the insulation sleeve along the radial direction of the insulation sleeve; the front end of the jacking screw penetrates through the wall of the insulating sleeve and is pressed against the outer wall of the central rod, so that the insulating sleeve is prevented from rotating relative to the central rod.
Preferably, the device further comprises a contact fixed to the front end of the central rod; the contact is provided with a first rotating surface taking the central axis of the central rod as a rotating shaft and a second rotating surface positioned below the first rotating surface, and one end of the second rotating surface away from the first rotating surface is close to the rotating shaft.
Preferably, the device further comprises a connecting pipe fixed at the tail end of the metal cylinder body and used for being connected to a using place.
Compared with the background art, the livestock feeding sensor provided by the invention comprises a metal cylinder body which is vertically arranged, a central rod which is coaxially arranged in the metal cylinder body, and a metal induction ring which is positioned in the metal cylinder body and sleeved at the waist of the central rod.
The head of the livestock stretches into the feeding tray in the feeding process, and the livestock touches the central rod exposed out of the metal cylinder in the feeding process, so that the central rod deflects by taking the mounting hole of the metal cylinder as a fulcrum, and further the metal induction ring fixed on the central rod is contacted with the metal cylinder, so that a feeding signal is generated; when the front end of the central rod is contacted by the fed feed, which means that the fed feed is too much and the livestock are not consumed, the front end of the central rod is communicated with the feed, the container for containing the feed, the bracket for being fixed on the container and the metal cylinder body fixed on the bracket, so that a signal for stopping feeding is generated. Because the central rod is sensitive to the response of the action of the livestock, and can conform to the position change of the livestock in all directions, the damage to the central rod and other parts in the feeding process of the livestock can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a feeding sensor for livestock provided by an embodiment of the invention;
FIG. 2 is a schematic view of a lower fixing plate according to an embodiment of the present invention;
the device comprises a 1-connecting pipe, a 2-center rod, a 3-gasket, a 4-upper fixing piece, a 5-lower fixing piece, a 50-groove, a 501-rectangular groove, a 502-round hole, a 51-first threaded hole, a 6-nut, a 7-bolt, an 8-center rod wire, a 9-metal cylinder, a 10-insulating sleeve, a 11-metal induction ring, a 12-induction ring wire, a 13-tightening screw, a 14-insulating fixing head, a 141-through hole, a 142-counter bore, a 15-elastic locating block, a 16-contact, a 161-first rotating surface, a 162-second rotating surface and a 17-limiting rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present invention.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a feeding sensor for livestock according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a lower fixing piece according to an embodiment of the present invention.
The invention provides a livestock feeding sensor, which comprises a metal cylinder 9, a central rod 2 coaxially arranged in the metal cylinder 9, and a metal induction ring 11 positioned in the metal cylinder 9 and fixed at the waist of the central rod 2; the bottom end of the metal cylinder 9 is provided with a mounting hole for the front end of the center rod 2 to pass through. When the part of the central rod 2 extending out of the metal cylinder 9 deflects to one side under the pushing action of the livestock, the central rod 2 deflects by taking the mounting hole as a fulcrum, so that the metal induction ring 11 fixed at the waist of the central rod 2 is contacted with the metal cylinder 9 to connect a loop comprising the metal cylinder 9 and the metal induction ring 11, thereby generating a feeding signal; when the central rod 2 is in contact with the fed feed, the front end of the central rod 2 is in communication with the feed, a container for holding the feed, a bracket for fixing to the container, and a metal cylinder 9 fixed to the bracket, so as to connect a circuit including the metal cylinder 9 and the central rod 2, thereby generating a signal for stopping feeding.
It is apparent that the metal cylinder 9 and the metal inductive loop 11 described above are capable of conducting electricity and, when in contact with each other, connect a circuit comprising both, thereby causing a change in the signal of the whole device in response to the animal's action. The metal cylinder 9 and the metal induction ring 11 may be made of steel, and the material of the central rod 2 is affected by the connection relationship between the central rod 2 and the metal cylinder 9, for example, when the inner wall of the mounting hole of the metal cylinder 9 is not conductive or the central rod 2 is not in contact with the mounting hole when rotating around the mounting hole as a fulcrum, the central rod 2 may be made of a metal material capable of conducting electricity; when the mounting hole of the metal cylinder 9 is conductive and the center rod 2 is in contact with the inner wall of the mounting hole or even in contact with the metal cylinder 9 when rotating around the mounting hole as a fulcrum, the portion of the center rod 2 in contact with the mounting hole should be made of a non-conductive material, while the other portion of the center rod 2 may be made of a conductive material. In short, the central rod 2 can only be brought into contact with the feed to bring the central rod 2 into communication with the metal cylinder 9.
Because the center rod 2 is installed in the metal cylinder 9 and can deflect in a certain range, that is, the metal cylinder 9 plays a role in fixing and supporting the center rod 2, the deflection range and the movement range of the center rod 2 can be limited, for example, a boss is arranged on the part of the center rod 2 above the installation hole, the boss is provided with a first curved surface protruding downwards, the upper end of the installation hole is provided with a second curved surface recessed downwards, the center rod 2 cannot fall off from the installation hole under the action of the boss, and the first curved surface can be in running fit with the second curved surface, so that the deflection of the center rod 2 relative to the metal cylinder 9 and the upward movement of the center rod 2 relative to the metal cylinder 9 are realized.
The feeding sensor should also be provided with means for returning the metal induction ring 11 to its original position when the animal stops feeding, in general, and in particular with a reset mechanism connected to the metal induction ring 11, which reset mechanism is able to pull the metal induction ring 11 to move to disconnect the metal induction ring 11 from the metal cylinder 9 when the animal stops feeding, thus generating a signal to stop feeding foodstuff and water. Because the length of the exposed part of the central rod 2 outside the metal cylinder 9 is smaller than the length connected inside the metal cylinder 9, the central rod 2 is sensitive to the response of the action of the livestock and can be subjected to position change according to the action of the livestock, thereby avoiding damage to the central rod 2 and other parts in the feeding process of the livestock. The specific arrangement of the reset mechanism is specifically referred to in the art, and is not limited herein.
Compared with the existing travel switch, the livestock feeding sensor provided by the invention can generate signal change according to the feeding action of livestock and the existing feed amount, and the center rod 2 can deflect and move in the metal cylinder 9 so as to conform to the action change of the livestock, and the center rod 2 and other parts are prevented from being damaged in the feeding process of the livestock.
The livestock feeding sensor provided by the invention is further described below with reference to the accompanying drawings and embodiments.
In order to simplify the connection between the central rod 2 and the metal cylinder 9 and realize the insulation between the central rod 2 and the mounting hole, the livestock feeding sensor provided by the application further comprises an insulation fixing head 14 fixed at the bottom end of the metal cylinder 9; the middle part of insulating fixed head 14 is equipped with the through-hole 141 coaxial with the mounting hole, and the diameter of the one end that this insulating fixed head 14 is close to metal barrel 9 is the same with the diameter of metal barrel 9, and the diameter of the one end that keeps away from metal barrel 9 is less than the diameter of metal barrel 9 to reduce the installation degree of difficulty of center pole 2 and insulating fixed head 14. For example, the insulating fixing head 14 may be in the shape of an inverted truncated cone, and the larger end is provided with an external thread for engaging with an internal thread at the bottom end of the metal cylinder 9 to achieve connection.
Wherein, one end of the insulating fixed head 14 near the metal cylinder 9 is provided with a counter bore 142 which is coaxial with the through hole 141 and has a diameter larger than that of the through hole 141; the livestock feeding sensor further comprises an elastic positioning block 15 arranged between the mounting hole and the central rod 2, wherein the elastic positioning block 15 is arranged in the counter bore 142, and can be made of a circular ring made of PVC, that is, the elastic positioning block 15 is used as a reset mechanism, a connecting hole for the central rod 2 to penetrate through and be fixedly connected with the central rod 2 is formed in the center of the elastic positioning block 15, and the edge of the elastic positioning block 15 is clamped and embedded in the inner wall of the counter bore 142 during mounting so as to limit the relative position of the central rod 2 and the insulating fixing head 14 in the vertical direction. When the livestock leaves, the central rod 2 is reset under the action of the elastic positioning block 15, that is, the central rod 2 is restored to the state that the central rod 2 is coaxial with the metal cylinder 9, at this time, the metal induction ring 11 fixed on the central rod 2 and the metal cylinder 9 are separated from each other, a loop comprising the metal cylinder 9 and the metal induction ring 11 is disconnected, and signals change. In order to achieve both the restoring action of the elastic positioning block 15 and the fixing action of the elastic positioning block 15 on the center rod 2, the elastic positioning block 15 may be provided in a ring shape with a thick middle and a thin edge.
In the above embodiment, the center rod 2 can deflect with the position of the insulating fixing head 14 as a fulcrum, specifically, when the front end of the center rod 2 deflects toward one side under the movement of the livestock, the portion of the center rod 2 located in the metal cylinder 9 deflects toward the other side; when the front end of the central rod 2 moves towards under the animal's movement, the central rod 2 moves upwards relative to the metal cylinder 9. On the one hand, considering that the position of the insulating fixing head 14 deviates from the midpoint of the central rod 2, when the front end of the central rod 2 is deflected by a certain angle, the part of the central rod 2 positioned in the metal cylinder 9 is deflected by an angle larger than the angle; on the other hand, the connection of the central rod 2 and the metal cylinder 9 can be realized only by considering the cooperation of the elastic positioning block 15 and the counter bore 142. To sum up, in order to maintain the connection relationship between the central rod 2 and the metal cylinder 9 and avoid damage to the central rod 2 or the metal induction ring 11 due to excessive deflection angle of the portion of the central rod 2 located in the metal cylinder 9, a lower fixing piece 5 may be disposed between the metal cylinder 9 and the end of the central rod 2; the center of the lower fixing piece 5 is provided with a groove 50 for the end of the center rod 2 to pass through and limit the movable range of the end of the center rod 2, and the end of the center rod 2 can move only within the limit of the groove 50.
The length, width and height of the groove 50 can be adjusted to change the movement range of the central rod 2 relative to the metal cylinder 9, and of course, the shape of the groove 50 can also be cylindrical, so that the length, width and height can also be regarded as two parameters of diameter and height.
Further, a limiting rod 17 is fixed at the tail end of the central rod 2, and the limiting rod 17 is perpendicular to the central rod 2; the recess 50 specifically includes a circular hole 502 for the center rod 2 to pass through and a rectangular groove 501 for the stop lever 17 to move, and the circular hole 502 is disposed at the midpoint of the rectangular groove 501, and the diameter of the circular hole 502 is generally larger than the width of the rectangular groove 501. The rectangular slot 501 may be further configured as a rectangular counter bore, that is, the rectangular counter bore does not penetrate the lower fixing piece 5, and is only disposed at the upper half portion of the lower fixing piece 5, so that the rectangular counter bore can cooperate with the elastic positioning block 15 to further limit the vertical downward movement of the central rod 2 relative to the metal cylinder 9, so as to ensure the connection strength between the central rod 2 and the metal cylinder 9.
In accordance therewith, the feeding sensor provided by the present application further comprises an upper stator 4 located above the lower stator 5; the lower end surface of the upper fixing piece 4 is flush with the upper end surface of the lower fixing piece 5, and is used for blocking the upper end surface of the rectangular groove 501 to limit the vertical upward movement distance of the limiting rod 17. The upper fixing piece 4 can be completely consistent with the lower fixing piece 5, the upper fixing piece 4 is only required to be reversely installed during installation, specifically, the rectangular counter bore of the lower fixing piece 5 is arranged upwards during installation, the rectangular counter bore of the upper fixing piece 4 is arranged downwards, and the limiting rod 17 can only move between the rectangular counter bore of the lower fixing piece 5 and the rectangular counter bore of the upper fixing piece 4.
Preferably, the livestock feeding sensor further comprises an insulating sleeve 10 which is positioned in the metal cylinder 9 and sleeved on the periphery of the central rod 2, wherein the waist of the insulating sleeve 10 is provided with a boss surface 101 which is arranged upwards and used for sleeving and clamping a metal induction ring 11; the metal induction ring 11 is provided with an induction ring wire 12, the material of the central rod 2 is metal, and the tail end of the central rod 2 exposed out of the insulating sleeve 10 is provided with a central rod wire 8 for connecting the induction ring wire 12. In other words, the insulating sleeve 10 comprises two cylinders of unequal diameter, with the diameter of the cylinder at the upper end being smaller than the diameter of the cylinder at the lower end, so as to snap-fit the metal induction ring 11 above the interface of the two cylinders; the metal inductive loop 11 can be connected into the loop by means of the inductive loop wire 12 and the central rod wire 8.
In order to avoid the rotation of the insulating sleeve 10 and the central rod 2, which causes the winding or even the pulling fracture of the induction loop wire 12 and the central rod wire 8, the animal feeding sensor further comprises a tightening screw 13 penetrating the insulating sleeve 10 along the radial direction of the insulating sleeve 10, and the front end of the tightening screw 13 penetrates the wall of the insulating sleeve 10 and is pressed against the outer wall of the central rod 2.
The front end of the center rod 2 is provided with a contact 16, the contact 16 is provided with a first rotating surface 161 taking the center shaft of the center rod 2 as a rotating shaft and a second rotating surface 162 positioned below the first rotating surface 161, and one end of the second rotating surface 162 away from the first rotating surface 161 is close to the rotating shaft so as to increase the contact area with feed and improve the sensitivity.
In order to facilitate the fixation of the feeding sensor to the place of use, it also comprises a connecting tube 1 fixed to the end of the metal cylinder 9 for connection to the place of use. The connecting pipe 1 can be fixedly connected with the upper fixing piece 4 and the lower fixing piece 5, and particularly can be detachably connected by adopting fasteners such as bolts 7, nuts 6, gaskets 3 and the like, correspondingly, the lower fixing piece 5 is also provided with a first threaded hole 51 for installing the bolts 7, and similarly, the upper fixing piece 4 is also provided with a second threaded hole matched with the bolts 7 and the first threaded hole 51.
The livestock feeding sensor provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (8)
1. A zoo-feeding sensor, comprising:
a metal cylinder (9) which is vertically arranged and provided with a mounting hole at the bottom end;
a central rod (2) coaxially arranged within the metal cylinder (9); the front end of the central rod (2) passes through the mounting hole and extends out of the metal cylinder (9) so as to be communicated with the metal cylinder (9) when the central rod (2) contacts feed;
a metal induction ring (11) which is positioned in the metal cylinder (9) and sleeved at the waist of the central rod (2) and is used for contacting with the metal cylinder (9) to complete a circuit when the central rod (2) deflects by taking the mounting hole as a fulcrum;
the insulation fixing head (14) is fixed at the bottom end of the metal cylinder body (9) and provided with a through hole (141) coaxial with the mounting hole in the middle;
a counter bore (142) which is coaxial with the through hole (141) and has a diameter larger than that of the through hole (141) is arranged at one end of the insulating fixing head (14) close to the metal cylinder body (9); the device also comprises an elastic positioning block (15) which is arranged between the central rod (2) and the mounting hole and is used for resetting the central rod (2) after the central rod (2) deflects by taking the mounting hole as a fulcrum; the center of the elastic positioning block (15) is provided with a connecting hole for the center rod (2) to pass through and fixedly connected with the center rod (2), and the edge of the elastic positioning block (15) is clamped and embedded in the inner wall of the counter bore (142) so as to limit the relative position of the center rod (2) and the insulating fixing head (14) in the vertical direction.
2. A feeding sensor according to claim 1, further comprising a lower stator (5) fixed in the top end of the metal cylinder (9); the center of the lower fixing piece (5) is provided with a groove (50) used for allowing the tail end of the center rod (2) to pass through and limiting the movable range of the tail end of the center rod (2).
3. A feeding sensor according to claim 2, wherein a stop lever (17) is fixed to the end of the central lever (2), and wherein the stop lever (17) is arranged perpendicular to the central lever (2); the groove (50) specifically comprises a round hole (502) for the center rod (2) to pass through and a rectangular groove (501) for the limiting rod (17) to move, and the round hole (502) is arranged at the middle point of the rectangular groove (501).
4. A feeding sensor according to claim 3, further comprising an upper stator (4) above the lower stator (5); the lower end face of the upper fixing piece (4) is flush with the upper end face of the lower fixing piece (5), and the upper end face of the rectangular groove (501) is used for blocking so as to limit the distance of the limiting rod (17) moving vertically upwards.
5. A feeding sensor according to any one of claims 1 to 4, further comprising an insulating sleeve (10) located inside the metal cylinder (9) and around the periphery of the central rod (2), and the waist of the insulating sleeve (10) has a boss surface (101) arranged upwards for nesting and clamping the metal induction ring (11); the metal induction ring (11) is provided with an induction ring wire (12), the material of the central rod (2) is metal, and the tail end of the central rod (2) exposed out of the insulating sleeve (10) is provided with a central rod wire (8) used for connecting the induction ring wire (12).
6. The feeding sensor according to claim 5, further comprising a tightening screw (13) passing through the insulating sleeve (10) in a radial direction of the insulating sleeve (10); the front end of the jacking screw (13) penetrates through the wall of the insulating sleeve (10) and is pressed against the outer wall of the central rod (2) so as to prevent the insulating sleeve (10) from rotating relative to the central rod (2).
7. A feeding sensor according to claim 6, further comprising a contact (16) fixed to the front end of the central rod (2); the contact (16) has a first rotation surface (161) with the central axis of the central rod (2) as a rotation axis and a second rotation surface (162) located below the first rotation surface (161), and one end of the second rotation surface (162) away from the first rotation surface (161) is closed toward the rotation axis.
8. A feeding sensor according to claim 7, further comprising a connection tube (1) secured to the end of the metal cylinder (9) for connection to a use site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910319581.8A CN109906957B (en) | 2019-04-19 | 2019-04-19 | Livestock feeding sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910319581.8A CN109906957B (en) | 2019-04-19 | 2019-04-19 | Livestock feeding sensor |
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| CN109906957A CN109906957A (en) | 2019-06-21 |
| CN109906957B true CN109906957B (en) | 2024-03-15 |
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