Salt throwing device for cattle and sheep breeding and use method

Abstract

The invention relates to the technical field of breeding, in particular to a salt throwing device for cattle and sheep breeding and a using method.The salt throwing device comprises a holding rod, a salt throwing box, a downward-pressing linkage assembly, a transmission piece and a rolling crushing assembly, the holding rod drives the salt throwing box to reach the salt throwing position, and the downward-pressing linkage assembly slides down along the holding rod; the rolling crushing assembly is pushed by the pressing linkage assembly to roll in the salt throwing box, the rolling rolling crushing assembly crushes salt bricks in the salt throwing box into small pieces, and the small pieces of salt are guided and discharged at the salt throwing position along the salt throwing box so that cattle and sheep can lick the salt when eating grass. The problem that in a stocking mode, salt supplementation is difficult to provide for stocked cattle and sheep by drinking water and feed is solved.

Description

Technical Field

[0001] The invention relates to the technical field of breeding, and in particular to a salt feeding device for breeding cattle and sheep and a use method thereof. Background Art

[0002] Cattle and sheep farming is divided into free-range and pen-raising. It is generally believed that cattle and sheep raised by grazing have higher market value than those raised in pen. Therefore, many farms adopt the free-range method to raise cattle and sheep. In cattle and sheep farming, scientific feeding of salt (sodium chloride) is an important measure to ensure animal health and production efficiency. Appropriate salt supplementation can stimulate saliva secretion, increase feed intake and feed utilization rate, and prevent high temperature or dehydration stress during lactation by regulating electrolytes. Salt fortified with trace elements such as iodine and selenium can also prevent and treat local nutritional deficiency diseases in a targeted manner.

[0003] For the caged breeding method, salt can be artificially added to the drinking water, and the cattle and sheep can obtain salt through drinking water. However, this method is not suitable for free-range breeding. The free-range pasture is usually large, which is not conducive to the placement of water troughs and water replenishment. Salt cannot be supplemented by adding salt to the feed. Therefore, a salt feeding device and a use method for cattle and sheep breeding are proposed. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a salt feeding device for cattle and sheep breeding and a use method thereof.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A salt-feeding device for cattle and sheep breeding, comprising a gripping rod, a salt-feeding box, a downward pressing linkage assembly, a transmission sheet and a rolling crushing assembly;

[0006] The salt throwing box is arranged at one side of the bottom end of the holding rod, and the interior of the salt throwing box is used to hold salt bricks;

[0007] A downward pressing linkage component is arranged on the outside of the lower end of the gripping rod, and the downward pressing linkage component can slide up and down along the outside of the gripping rod;

[0008] One end of the transmission sheet is connected to the movable end of the downward pressing linkage assembly, and the other end of the transmission sheet is connected to the bottom of the salt box;

[0009] The rolling crushing assembly is arranged inside the salt box, one end of the rolling crushing assembly is connected to the middle part of the downward pressing linkage assembly and is pushed by the downward pressing linkage assembly, and the other end of the rolling crushing assembly is connected to the inner wall of the salt box;

[0010] The holding rod drives the salt box to the salt feeding position, the downward pressing linkage assembly slides down along the holding rod, and the rolling crushing assembly is pushed by the downward pressing linkage assembly to roll inside the salt box. The rolling rolling crushing assembly breaks the salt bricks inside the salt box into small fragments, and the small crushed salt is guided along the salt box and discharged at the salt feeding position.

[0011] Preferably, the salt box includes a salt box body, a salt feeding valve, a salt brick support box and a guide groove, the salt box body is fixed to the outside of the bottom of the holding rod by a clamp, the salt feeding valve is installed at the discharge port at the bottom end of the salt box body through a rotating shaft, the salt brick support box is arranged inside the salt box body, the salt brick is placed inside the salt brick support box, the guide groove is arranged at the bottom of the salt box body, the top end of the guide groove is connected to the discharge port at the bottom end of the salt box body, and the bottom end of the guide groove is connected to the outside.

[0012] Preferably, the downward pressing linkage assembly includes a fixed plate, a movable pressure plate, a return spring, a deflection limiting rod and a transmission rod. The fixed plate, movable pressure plate and return spring are sequentially sleeved on the outside below the holding rod in the order of the movable pressure plate, the return spring and the fixed plate. The fixed plate is fixedly connected to the holding rod by a bolt, and the two ends of the return spring are respectively connected to the fixed plate and the movable pressure plate. The deflection limiting rod is arranged in the side wing end of the movable pressure plate, and the bottom end of the deflection limiting rod passes through the side wing end of the fixed plate. Under the restriction of the deflection limiting rod, the relative setting angle of the movable pressure plate and the fixed plate remains fixed. One end of the transmission rod is arranged in the side wing side of the movable pressure plate, and the end of the transmission rod can rotate relative to the side wing side of the movable pressure plate.

[0013] Preferably, one end of the transmission plate is movably connected to the other end of the transmission rod, and the other end of the transmission plate is fixedly connected to the end of the rotating shaft on which the salt injection valve is installed by bolts, and the transmission plate transmits the displacement of the transmission rod to the rotating shaft on which the salt injection valve is installed.

[0014] Preferably, the downward pressing linkage assembly also includes a transmission frame, which is formed on the front side of the movable pressing plate. The rolling crushing assembly is installed at the middle position of the end of the grounding tray through a rotating shaft. The rolling crushing assembly can move up and down with the transmission frame and rotate relative to the transmission frame.

[0015] Preferably, the downward pressing linkage assembly further comprises a sliding sleeve, the sliding sleeve is sleeved on the upper portion of the holding rod, and the bottom end of the sliding sleeve is welded to the top of the movable pressing plate.

[0016] Preferably, the rolling crushing assembly includes a push rod, a crushing roller and a compression spring, the top end of the push rod is connected to the middle position of the end of the transmission frame through a rotating shaft, and two groups of crushing rollers are installed on both sides of the other end of the push rod through the rotating shaft, one end of the compression spring is fixed at the middle position of the push rod, and the other end of the compression spring is fixed at the middle position of the inner wall of the salt box body.

[0017] Preferably, a salt brick placement area is formed between the crushing roller and the salt brick support box, and the crushing roller presses and fixes the salt bricks placed in the salt brick placement area in cooperation with the compression spring and the push rod.

[0018] Preferably, a grounding tray is welded to the bottom surface of the holding rod, a through hole is provided in the middle of the grounding tray, and the bottom end of the guide groove guides to the center position of the through hole.

[0019] A method for using a salt feeding device for cattle and sheep breeding comprises the following steps:

[0020] Step S1, select salt bricks of appropriate specifications, put the salt bricks into the salt brick tray, and ensure that the crushing roller is in contact with the surface of the salt brick and pushes the salt brick under the cooperation of the compression spring and the push rod, so as to compress and fix the salt bricks placed in the salt brick placement area;

[0021] Step S2, the operator holds the holding rod and drives the device body to the salt adding position through the holding rod;

[0022] Step S3, holding the sliding sleeve, pushing the sliding sleeve so that the sliding sleeve moves downward along the holding rod, and the sliding sleeve pushes the movable pressing piece to move downward;

[0023] Step S4, the downward movement of the movable pressing plate is restricted by the deflection limiting rod, and the return spring is deformed and stores force under the downward pressure of the movable pressing plate. During the downward pressure of the movable pressing plate, the transmission rod moves downward synchronously, and the downwardly moving transmission rod pushes one end of the transmission plate so that the transmission plate drives the rotating shaft on which the salt injection valve is installed to rotate;

[0024] Step S5, the rotating shaft rotates to make the salt injection valve rotate synchronously, and the salt injection valve releases the sealing of the salt box main body discharge port during the process of rotating relative to the salt box main body;

[0025] Step S6, while steps S3-S5 are being performed, the transmission frame moves downward synchronously with the movable pressing plate, and as the transmission frame is pressed downward, the push rod drives the crushing roller to move downward along the surface of the salt brick, and the crushing roller crushes the salt brick in the process of moving along the surface of the salt brick to form fine salt blocks;

[0026] Step S7, the small rock blocks are discharged from the unsealed discharge port of the salt box body and guided by the guide groove to the center position of the grounding tray;

[0027] Step S8, after the salt addition is completed, the downward pressure on the sliding sleeve is released, and the reset spring pushes the movable pressing plate to reset. During the reset process of the movable pressing plate, the transmission rod pulls one end of the transmission plate so that the transmission plate drives the rotating shaft on which the salt-dosing valve is installed to rotate and close, and the push rod drives the crushing roller to move upward along the surface of the salt brick to reset.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] The present invention provides a salt-feeding device for cattle and sheep breeding, comprising a holding rod, a salt-feeding box, a downward pressing linkage component, a transmission sheet and a rolling crushing component. The holding rod drives the salt-feeding box to a salt-feeding position, the downward pressing linkage component slides down along the holding rod, and the rolling crushing component is pushed by the downward pressing linkage component to roll inside the salt-feeding box. The rolling rolling crushing component crushes the salt bricks inside the salt-feeding box into small fragments, and the small fragments of salt are discharged along the salt-feeding box at the salt-feeding position for cattle and sheep to lick when grazing, thereby solving the problem of difficulty in providing salt supplement to cattle and sheep by drinking water and feed in a free-range breeding method.

[0030] In the present invention, large salt blocks are crushed by rolling to form small broken salt blocks, which are convenient for cattle and sheep to lick and are not easy to scatter. The single-time delivery amount is controllable, thereby reducing the waste of salt. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the salt throwing box of the present invention;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the downward pressing linkage assembly of the present invention;

[0034] Figure 4 It is a schematic diagram of the three-dimensional structure of the rolling crushing assembly of the present invention;

[0035] Figure 5 It is a schematic diagram of the use state of the present invention.

[0036] The numbers in the figure represent:

[0037] 1. Holding rod; 2. Salt box; 21. Salt box body; 22. Salt valve; 23. Salt brick holder; 24. Guide groove; 3. Down-pressing linkage assembly; 31. Fixed plate; 32. Movable pressure plate; 33. Reset spring; 34. Deflection limiting rod; 35. Transmission rod; 36. Transmission frame; 37. Sliding sleeve; 4. Transmission plate; 5. Roller crushing assembly; 51. Push rod; 52. Crushing roller; 53. Compression spring; 6. Grounding tray. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments, but the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0039] Example:

[0040] like Figure 1-5As shown, the present invention provides a salt-feeding device for cattle and sheep breeding, comprising a gripping rod 1, a salt-feeding box 2, a downward pressing linkage component 3, a transmission sheet 4 and a rolling crushing component 5;

[0041] The salt throwing box 2 is arranged at one side of the bottom end of the holding rod 1, and the interior of the salt throwing box 2 is used to hold salt bricks;

[0042] A downward pressing linkage component 3 is disposed on the outside of the lower end of the gripping rod 1, and the downward pressing linkage component 3 can slide up and down along the outside of the gripping rod 1;

[0043] One end of the transmission piece 4 is connected to the movable end of the downward pressing linkage assembly 3, and the other end of the transmission piece 4 is connected to the bottom of the salt box 2;

[0044] The rolling crushing assembly 5 is arranged inside the salt box 2, one end of the rolling crushing assembly 5 is connected to the middle of the downward pressing linkage assembly 3 and is pushed by the downward pressing linkage assembly 3, and the other end of the rolling crushing assembly 5 is connected to the inner wall of the salt box 2;

[0045] The holding rod 1 drives the salt box 2 to the salt-adding position, and the downward pressing linkage component 3 slides down along the holding rod 1. The rolling crushing component 5 is pushed by the downward pressing linkage component 3 to roll inside the salt box 2. The rolling rolling crushing component 5 breaks the salt bricks inside the salt box 2 into small fragments, and the small crushed salt is guided along the salt box 2 and discharged at the salt-adding position.

[0046] The salt box 2 includes a salt box body 21, a salt injection valve 22, a salt brick support box 23 and a guide groove 24;

[0047] The salt box body 21 is fixed to the outside of the bottom of the holding rod 1 by a clamp, and the salt-feeding valve 22 is installed at the discharge port at the bottom end of the salt box body 21 by a rotating shaft. The salt-feeding valve 22 can be rotated synchronously by rotating the rotating shaft. The salt-feeding valve 22 can be switched between closing the discharge port of the salt box body 21 and releasing the closing of the discharge port of the salt box body 21 during the rotation process relative to the salt box body 21, thereby realizing the delivery of salt blocks from the salt box body 21;

[0048] The salt brick support box 23 is arranged inside the salt box body 21, and the salt brick is placed inside the salt brick support box 23. Under the restriction of the salt brick support box 23, the salt brick can be kept in the middle position of the salt box body 21 to avoid the salt brick being offset with the transfer of the salt box body 21;

[0049] The guide groove 24 is arranged at the bottom of the salt box body 21 , the top of the guide groove 24 is connected to the discharge port at the bottom of the salt box body 21 , and the bottom of the guide groove 24 is connected to the outside, and the salt blocks released through the salt box body 21 can slide down to the designated position under the guidance of the guide groove 24 .

[0050] The downward pressing linkage assembly 3 includes a fixed plate 31, a movable pressing plate 32, a return spring 33, a deflection limiting rod 34 and a transmission rod 35;

[0051] The fixed plate 31, the movable pressing plate 32 and the return spring 33 are sequentially sleeved on the outside of the lower part of the holding rod 1 in the order of the movable pressing plate 32, the return spring 33 and the fixed plate 31. The fixed plate 31 is fixedly connected to the holding rod 1 by bolts. The two ends of the return spring 33 are respectively connected to the fixed plate 31 and the movable pressing plate 32. The deflection limiting rod 34 is arranged in the side wing end of the movable pressing plate 32. The bottom end of the deflection limiting rod 34 passes through the side wing end of the fixed plate 31. Under the restriction of the deflection limiting rod 34, the relative setting angle of the movable pressing plate 32 and the fixed plate 31 is kept fixed. After being pushed, the movable pressing plate 32 can slide along the holding rod 1. The downward sliding state of the movable pressing plate 32 is restricted by the deflection limiting rod 34. The return spring 33 deforms and accumulates force under the downward pressure of the movable pressing plate 32.

[0052] One end of the transmission rod 35 is arranged in the side of the side wing of the movable pressing plate 32, and the end of the transmission rod 35 can rotate relative to the side of the side wing of the movable pressing plate 32. When the movable pressing plate 32 is pressed down, the transmission rod 35 moves downward synchronously.

[0053] One end of the transmission plate 4 is movably connected to the other end of the transmission rod 35, and the other end of the transmission plate 4 is fixedly connected to the end of the rotating shaft on which the salt-dosing valve 22 is installed by a bolt. The transmission plate 4 transmits the displacement of the transmission rod 35 to the rotating shaft on which the salt-dosing valve 22 is installed. The downwardly moved transmission rod 35 pushes one end of the transmission plate 4 so that the transmission plate 4 drives the rotating shaft on which the salt-dosing valve 22 is installed to rotate. During the rotation, the salt-dosing valve 22 switches from a state of closing the discharge port of the salt box body 21 to a state of releasing the seal on the discharge port of the salt box body 21.

[0054] The downward pressing linkage assembly 3 further includes a sliding sleeve 37;

[0055] The sliding sleeve 37 is sleeved on the upper part of the gripping rod 1, and the bottom end of the sliding sleeve 37 is welded to the top of the movable pressing plate 32. When the movable pressing plate 32 needs to be pushed, the operator can push the sliding sleeve 37 to move the sliding sleeve 37 downward along the gripping rod 1. The sliding sleeve 37 pushes the movable pressing plate 32 so that the operator can operate the movable pressing plate 32 without bending over, thereby reducing the number of times the operator bends over during work and reducing work fatigue.

[0056] The downward pressing linkage assembly 3 also includes a transmission frame 36, which is formed on the front side of the movable pressing plate 32. The rolling crushing assembly 5 is installed at the middle position of the end of the grounding tray 6 through a rotating shaft. When the movable pressing plate 32 is moved under force, the rolling crushing assembly 5 can move up and down with the transmission frame 36 and rotate relative to the transmission frame 36.

[0057] The rolling crushing assembly 5 includes a push rod 51, a crushing roller 52 and a pressing spring 53;

[0058] The top end of the push rod 51 is connected to the middle position of the end of the transmission frame 36 through a rotating shaft, and two sets of crushing rollers 52 are installed on both sides of the other end of the push rod 51 through the rotating shaft. One end of the compression spring 53 is fixed at the middle position of the push rod 51, and the other end of the compression spring 53 is fixed at the middle position of the inner wall of the salt box body 21. A salt brick placement area is formed between the crushing roller 52 and the salt brick tray 23. The crushing roller 52 is in contact with the surface of the salt brick and pushes the salt brick under the cooperation of the compression spring 53 and the push rod 51, thereby achieving compression of the salt bricks placed in the salt brick placement area. The push rod 51 drives the crushing roller 52 to move downward along the surface of the salt brick as the transmission frame 36 is pressed downward. The crushing roller 52 crushes the salt brick in the process of moving along the surface of the salt brick to form small salt blocks. The small salt blocks fall into the inside of the salt box body 21 and slide down under the guidance of the guide groove 24. In the process of the crushing roller 52 moving downward, the pressing spring 53 is compressed and bent. Under the elastic force of the pressing spring 53, the crushing roller 52 at the end of the push rod 51 is always in contact with the surface of the salt brick during the entire downward movement to obtain a better crushing effect.

[0059] A grounding tray 6 is welded to the bottom surface of the holding rod 1, and the grounding tray 6 can increase the grounding area of ​​the bottom of the holding rod 1 to prevent the bottom of the holding rod 1 from being embedded in the ground. A through hole is provided in the middle of the grounding tray 6, and the bottom end of the guide groove 24 guides to the center position of the through hole. During a single salt application, the operator can judge the single salt application amount by observing the way the holding rod 1 falls to the ground, so that the operator can determine whether a second salt application is needed.

[0060] Method of using the salt feeding device for cattle and sheep breeding:

[0061] Select salt bricks of appropriate specifications, put the salt bricks into the salt brick tray 23, and ensure that the crushing roller 52 is in contact with the surface of the salt brick and pushes the salt brick under the cooperation of the compression spring 53 and the push rod 51, and the salt bricks placed in the salt brick placement area are compressed and fixed. The operator holds the holding rod 1 and drives the main body of the device to the salt throwing position through the holding rod 1, and then holds the sliding sleeve 37, pushes the sliding sleeve 37 to make the sliding sleeve 37 move down along the holding rod 1, and the sliding sleeve 37 pushes the movable pressing plate 32 to move down;

[0062] The downward movement of the movable pressing plate 32 is limited by the deflection limiting rod 34. The return spring 33 is deformed and stores force under the downward pressure of the movable pressing plate 32. During the downward pressure of the movable pressing plate 32, the transmission rod 35 moves downward synchronously. The downward transmission rod 35 pushes one end of the transmission plate 4 so that the transmission plate 4 drives the rotating shaft on which the salt injection valve 22 is installed to rotate. The rotation of the rotating shaft causes the salt injection valve 22 to rotate synchronously. The salt injection valve 22 releases the sealing of the discharge port of the salt box body 21 during the rotation relative to the salt box body 21. At the same time, the transmission frame 36 moves downward synchronously with the movable pressing plate 32. As the transmission frame 36 is pressed downward, the push rod 51 drives the crushing roller 52 to move downward along the surface of the salt brick. The crushing roller 52 crushes the salt brick in the process of moving along the surface of the salt brick to form fine salt blocks.

[0063] The tiny rock blocks are discharged from the unsealed discharge port of the salt box body 21 and guided by the guide groove 24 to the center position of the grounding tray 6. After the salt is added, the downward pressure on the sliding sleeve 37 is released, and the reset spring 33 pushes the movable pressing plate 32 to reset. During the reset process of the movable pressing plate 32, the transmission rod 35 pulls one end of the transmission plate 4 so that the transmission plate 4 drives the rotating shaft on which the salt-adding valve 22 is installed to rotate and close, and the push rod 51 drives the crushing roller 52 to move upward along the surface of the salt brick to reset.

[0064] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A salt feeding device for cattle and sheep breeding, characterized in that: It comprises a gripping rod (1), a salt throwing box (2), a downward pressing linkage assembly (3), a transmission sheet (4) and a rolling crushing assembly (5); The salt throwing box (2) is arranged on one side of the bottom end of the holding rod (1), and the interior of the salt throwing box (2) is used to hold salt bricks; A downward pressing linkage component (3) is arranged on the outside of the lower end of the gripping rod (1), and the downward pressing linkage component (3) can slide up and down along the outside of the gripping rod (1); One end of the transmission sheet (4) is connected to the movable end of the downward pressing linkage assembly (3), and the other end of the transmission sheet (4) is connected to the bottom of the salt feeding box (2); The rolling crushing assembly (5) is arranged inside the salt feeding box (2), one end of the rolling crushing assembly (5) is connected to the middle of the downward pressing linkage assembly (3) and is pushed by the downward pressing linkage assembly (3), and the other end of the rolling crushing assembly (5) is connected to the inner wall of the salt feeding box (2); The holding rod (1) drives the salt box (2) to reach the salt-adding position, the downward pressing linkage assembly (3) slides down along the holding rod (1), and the rolling crushing assembly (5) is pushed by the downward pressing linkage assembly (3) to roll inside the salt box (2). The rolling rolling crushing assembly (5) crushes the salt bricks inside the salt box (2) into small fragments, and the small fragments of salt are guided along the salt box (2) and discharged at the salt-adding position.

2. A salt feeding device for cattle and sheep breeding as claimed in claim 1, characterized in that: The salt box (2) comprises a salt box body (21), a salt injection valve (22), a salt brick support box (23) and a guide groove (24); the salt box body (21) is fixed to the outside of the bottom of the holding rod (1) by a clamp; the salt injection valve (22) is installed at the discharge port at the bottom end of the salt box body (21) by a rotating shaft; the salt brick support box (23) is arranged inside the salt box body (21); the salt bricks are placed inside the salt brick support box (23); the guide groove (24) is arranged at the bottom of the salt box body (21); the top end of the guide groove (24) is connected to the discharge port at the bottom end of the salt box body (21); and the bottom end of the guide groove (24) is connected to the outside.

3. The salt feeding device for cattle and sheep breeding as claimed in claim 2, characterized in that: The downward pressing linkage assembly (3) comprises a fixed plate (31), a movable pressing plate (32), a return spring (33), a deflection limiting rod (34) and a transmission rod (35). The fixed plate (31), the movable pressing plate (32) and the return spring (33) are sequentially sleeved on the outside of the lower side of the holding rod (1) in the order of the movable pressing plate (32), the return spring (33) and the fixed plate (31). The fixed plate (31) is fixedly connected to the holding rod (1) by bolts. The two ends of the return spring (33) are respectively connected to the fixed plate (31). 1) is connected to a movable pressing plate (32), the deflection limiting rod (34) is arranged in the side wing end of the movable pressing plate (32), the bottom end of the deflection limiting rod (34) passes through the side wing end of the fixed plate (31), under the restriction of the deflection limiting rod (34), the relative setting angle between the movable pressing plate (32) and the fixed plate (31) is kept fixed, and the one-end transmission rod (35) is arranged in the side wing side of the movable pressing plate (32), and the end of the transmission rod (35) can rotate relative to the side wing side of the movable pressing plate (32).

4. The salt feeding device for cattle and sheep breeding as claimed in claim 2, characterized in that: One end of the transmission plate (4) is movably connected to the other end of the transmission rod (35), and the other end of the transmission plate (4) is fixedly connected to the end of the rotating shaft on which the salt injection valve (22) is installed via a bolt. The transmission plate (4) transmits the displacement of the transmission rod (35) to the rotating shaft on which the salt injection valve (22) is installed.

5. The salt feeding device for cattle and sheep breeding as claimed in claim 4, characterized in that: The downward pressing linkage assembly (3) further comprises a transmission frame (36), wherein the transmission frame (36) is formed on the front surface of the movable pressing plate (32), and the rolling crushing assembly (5) is installed at the middle position of the end of the grounding tray (6) via a rotating shaft, and the rolling crushing assembly (5) can move up and down with the transmission frame (36) and rotate relative to the transmission frame (36).

6. The salt feeding device for cattle and sheep breeding as claimed in claim 5, characterized in that: The downward pressing linkage assembly (3) further comprises a sliding sleeve (37), wherein the sliding sleeve (37) is sleeved on the upper portion of the holding rod (1), and the bottom end of the sliding sleeve (37) is welded to the top of the movable pressing plate (32).

7. The salt feeding device for cattle and sheep breeding as claimed in claim 5, characterized in that: The rolling crushing assembly (5) comprises a push rod (51), a crushing roller (52) and a compression spring (53); the top end of the push rod (51) is connected to the middle position of the end of the transmission frame (36) via a rotating shaft; two groups of crushing rollers (52) are mounted on both sides of the other end of the push rod (51) via the rotating shaft; one end of the compression spring (53) is fixed at the middle position of the push rod (51); and the other end of the compression spring (53) is fixed at the middle position of the inner wall of the salt box body (21).

8. The salt feeding device for cattle and sheep breeding as claimed in claim 7, characterized in that: A salt brick placement area is formed between the crushing roller (52) and the salt brick support box (23), and the crushing roller (52) compresses and fixes the salt bricks placed in the salt brick placement area in cooperation with the compression spring (53) and the push rod (51).

9. The salt feeding device for cattle and sheep breeding as claimed in claim 7, characterized in that: A grounding tray (6) is welded to the bottom surface of the holding rod (1), a through hole is provided in the middle of the grounding tray (6), and the bottom end of the guide groove (24) leads to the center position of the through hole.

10. A method for using the salt feeding device for cattle and sheep breeding according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, select a salt brick of suitable specifications, put the salt brick into the salt brick tray (23), and ensure that the crushing roller (52) is in contact with the surface of the salt brick and pushes the salt brick under the cooperation of the compression spring (53) and the push rod (51), so as to compress and fix the salt brick placed in the salt brick placement area; Step S2, the operator holds the holding rod (1) and drives the main body of the device to the salt injection position through the holding rod (1); Step S3, holding the sliding sleeve (37), pushing the sliding sleeve (37) so that the sliding sleeve (37) moves downward along the holding rod (1), and the sliding sleeve (37) pushes the movable pressing sheet (32) to move downward; Step S4, the downward movement of the movable pressing plate (32) is restricted by the deflection limiting rod (34), the return spring (33) is deformed and stores force under the downward pressure of the movable pressing plate (32), and during the downward pressure of the movable pressing plate (32), the transmission rod (35) moves downward synchronously, and the downwardly moving transmission rod (35) pushes one end of the transmission plate (4) so ​​that the transmission plate (4) drives the rotating shaft on which the salt injection valve (22) is installed to rotate; Step S5, the rotating shaft rotates to cause the salt injection valve (22) to rotate synchronously, and the salt injection valve (22) releases the sealing of the discharge port of the salt box body (21) during the process of rotating relative to the salt box body (21); Step S6, while steps S3 to S5 are being performed, the transmission frame (36) moves downward synchronously with the movable pressing plate (32), and as the transmission frame (36) is pressed downward, the push rod (51) drives the crushing roller (52) to move downward along the surface of the salt brick, and the crushing roller (52) crushes the salt brick in the process of moving along the surface of the salt brick to form fine salt blocks; Step S7, the small rock blocks are discharged from the unsealed discharge port of the salt box body (21) and guided by the guide groove (24) to the center position of the grounding tray (6); Step S8, after the salt addition is completed, the downward pressure on the sliding sleeve (37) is released, and the reset spring (33) pushes the movable pressing plate (32) to reset. During the reset process of the movable pressing plate (32), the transmission rod (35) pulls one end of the transmission plate (4) so ​​that the transmission plate (4) drives the rotating shaft on which the salt-adding valve (22) is installed to rotate and close, and the push rod (51) drives the crushing roller (52) to move upward along the surface of the salt brick to reset.

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