Ventilation device for pig raising shed

Abstract

The utility model relates to the related technical field of ventilation devices, in particular to a pig raising shed ventilation device which comprises a ventilation pipeline, and mounting plates are fixedly connected to the two ends of the ventilation pipeline. Four turning plates are arranged on one side of the interior of the ventilation pipeline, first rotating shafts are fixedly connected to the two ends of each turning plate, and the ends, away from the turning plates, of the first rotating shafts are rotationally connected with the ventilation pipeline; a linkage mechanism for controlling the four turning plates to be opened and closed synchronously is arranged on one face of each turning plate. Under the matching action of the turning plate, the first rotating shaft, the linkage mechanism and the fan mechanism, a user can respectively control the opening and closing states of the turning plate and the fan mechanism according to muggy weather conditions, and the problem that a shutter blind of an existing ventilation device can only be opened when a ventilation fan runs to certain wind power, so that the ventilation effect is poor is solved. And the device does not have the function of respectively controlling the shutter blind and the ventilation fan, so that the practicability is poor.

Description

Technical Field

[0001] The utility model relates to the technical field related to ventilation devices, in particular to a ventilation device for a piggery. Background Art

[0002] Traditional pig farming usually chooses to build pig pens to raise domestic pigs. With the development of pig farming, many pig farmers now prefer plastic greenhouses because the cost of building cement pig pens is too high. Plastic greenhouses are low-cost and easy to build, but plastic greenhouses have many disadvantages for pig farming. For example, the closed environment of the greenhouse has poor ventilation performance, and the foul air generated by the pigs cannot be discharged in time, which can easily lead to respiratory diseases in the pigs.

[0003] The utility model patent with announcement number CN211064544U discloses a pig shed ventilation device, which belongs to the technical field related to breeding sheds. It solves the problem in the prior art that in winter, using traditional fans for ventilation will cause a large amount of cold air to enter the greenhouse, greatly affecting the insulation of the closed greenhouse and hindering the growth of the pig herd. The device includes a pig shed, a heat storage box, a core column base, an electric heating core column, a first air inlet pipe, a second air inlet pipe, a protective filter screen, a canopy, an exhaust fan, a lifting ring, a lifting bracket, a lifting block, a ventilation fan, a louver box, a movable shaft, and a louver. The pig shed is fixedly equipped with a heat storage box, the heat storage box is fixedly equipped with a core column base, the core column base is fixedly equipped with an electric heating core column, the heat storage box is fixedly equipped with a first air inlet pipe and a second air inlet pipe, the first air inlet pipe and the second air inlet pipe are both fixedly equipped with a protective filter screen, the pig shed is fixedly equipped with a canopy, and the first air inlet pipe and the second air inlet pipe are both fixedly connected with an exhaust fan. In the utility model, the ventilation effect of the breeding shed is achieved through the exhaust fan and the ventilation fan, the winter ventilation does not affect the health of the pigs through the heat storage box, and the shed is sealed when there is no ventilation through the shutter box.

[0004] However, the above patent still has shortcomings: the venetian blinds of the patent require the ventilation fan to be running at a certain wind speed before they can be opened, resulting in the user being unable to open or close the venetian blinds and the ventilation fan separately according to their needs, and the practicality is poor. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a pig shed ventilation device to solve the problem of poor practicality in that users cannot open or close the blinds and the ventilation fan according to their needs as mentioned in the above background technology.

[0006] The technical solution of the utility model is:

[0007] A pig shed ventilation device comprises: a ventilation duct, both ends of which are fixedly connected to mounting plates; four flaps are arranged on one side of the interior of the ventilation duct, both ends of the flaps are fixedly connected to a first rotating shaft, and one end of the first rotating shaft away from the flaps is rotatably connected to the ventilation duct; one side of the flaps is provided with a linkage mechanism for controlling the synchronous opening and closing of the four flaps; and a fan mechanism for improving the ventilation effect of the ventilation duct is arranged in the middle of the ventilation duct.

[0008] Preferably, the linkage mechanism includes: two first linkage rods are provided on one side of the flap, and fixed blocks are fixedly connected to the four flaps near the first linkage rods, and the fixed blocks are rotatably connected to the first linkage rods through second rotating shafts; a second linkage rod is provided on a side of the first linkage rod away from the fixed block, and one end of the second linkage rod is rotatably connected to the first linkage rod through a third rotating shaft; and a telescopic mechanism for applying power to the second linkage rod is provided on one end of the second linkage rod away from the third rotating shaft.

[0009] Preferably, the telescopic mechanism includes: an end of the second linkage rod away from the third rotating shaft is fixedly connected to a fourth rotating shaft, an outer surface of the fourth rotating shaft away from an end of the second linkage rod is rotatably connected to a rotating plate, the middle of the rotating plate is fixedly connected to a fifth rotating shaft, and an end of the fifth rotating shaft away from the rotating plate rotates with the ventilation duct; an end of the rotating plate away from the fourth rotating shaft is fixedly connected to a sixth rotating shaft, an outer surface of the sixth rotating shaft is sleeved with a ring, an electric push rod is provided on the top of the ring, the telescopic ends of the electric push rods are respectively fixedly connected to the rings, the ends of the electric push rods away from the rings are fixedly connected to a connecting block, the interior of the connecting block is rotatably connected to a fixed rod, and an end of the fixed rod away from the connecting block is fixedly connected to the ventilation duct.

[0010] Preferably, the fan mechanism includes: a motor is arranged in the middle of the ventilation duct, the four corners of the motor are fixedly connected with connecting rods, and the ends of the connecting rods away from the motor are fixedly connected to the ventilation duct; the output end of the motor is provided with fan blades, and the fan blades are fixedly connected to the output end of the motor.

[0011] Preferably, a protective net is provided on a side of the ventilation duct away from the flap, a limiting frame is provided on one side of the protective net, and the limiting frame is fixedly connected to the ventilation duct.

[0012] Preferably, a fixing frame is provided on a side of the protective net away from the limiting frame, and bolts are provided at four corners of the fixing frame. One end of the bolts passes through the fixing frame and the protective net and extends to the interior of the limiting frame, and the bolts are threadedly connected to the limiting frame.

[0013] Preferably, matching slots are provided between the four flaps, and the four flaps are meshed with each other through the slots.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Firstly, through the cooperation of the flap, the first rotating shaft, the linkage mechanism and the fan mechanism, the user can control the opening and closing states of the flap and the fan mechanism according to the hot weather conditions, thereby solving the problem that the venetian blinds of the existing ventilation device can only be opened when the ventilation fan reaches a certain wind speed, and does not have the function of separately controlling the venetian blinds and the ventilation fan, so the practicality is poor.

[0016] Secondly, through the cooperation of the flap, the first rotating shaft, the linkage mechanism and the fan mechanism, the user can adjust the flip angle of the flap according to his or her needs, thereby achieving the purpose of adjusting the ventilation effect, avoiding the situation in winter when the vents are opened too wide, causing a large amount of cold air to enter the pig shed and causing frostbite to the pigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the piggery ventilation device of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the ventilation duct of the utility model;

[0019] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 For the utility model Figure 2 The enlarged structural diagram at B in the middle;

[0021] Figure 5 It is a schematic diagram of the linkage mechanism structure of the utility model;

[0022] Figure 6 For the utility model Figure 5 The enlarged structural diagram at C in the middle;

[0023] Figure 7 It is a schematic diagram of the connection structure between the flap and the first rotating shaft of the utility model.

[0024] In the figure:

[0025] 1. Ventilation duct; 2. Flap; 3. First rotating shaft; 4. Linkage mechanism; 5. Fan mechanism; 6. First linkage rod; 7. Fixed block; 8. Second rotating shaft; 9. Second linkage rod; 10. Third rotating shaft; 11. Telescopic mechanism; 12. Fourth rotating shaft; 13. Rotating plate; 14. Fifth rotating shaft; 15. Sixth rotating shaft; 16. Ring; 17. Electric push rod; 18. Connecting block; 19. Fixed rod; 20. Motor; 21. Connecting rod; 22. Fan blade; 23. Protective net; 24. Limit frame; 25. Fixed frame; 26. Bolt; 27. Mounting plate; 28. Slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 7 The utility model describes the above technical solution in detail through the following embodiments:

[0028] A pig shed ventilation device comprises: a ventilation duct 1, both ends of the ventilation duct 1 are fixedly connected with a mounting plate 27; one side of the interior of the ventilation duct 1 is provided with four flaps 2, both ends of the flaps 2 are fixedly connected with a first rotating shaft 3, and one end of the first rotating shaft 3 away from the flap 2 is rotatably connected to the ventilation duct 1; one side of the flap 2 is provided with a linkage mechanism 4 for controlling the synchronous opening and closing of the four flaps 2; the middle part of the ventilation duct 1 is provided with a fan mechanism 5 for improving the ventilation effect of the ventilation duct 1, and the user can control the linkage mechanism 4 and the fan mechanism 5 to open or close respectively, and the linkage mechanism 4 synchronously drives the four flaps 2 to rotate inside the ventilation duct 1 with the first rotating shaft 3 as the center, so as to achieve the purpose of controlling the opening and closing of the ventilation duct 1, and the user can control the opening and closing states of the flap 2 and the fan mechanism 5 respectively according to the hot weather conditions, thereby solving the problem that the venetian blinds of the existing ventilation device need to be opened when the ventilation fan runs to a certain wind force, and do not have the function of separately controlling the venetian blinds and the ventilation fan, so as to achieve poor practicality.

[0029] like Figure 2 and Figure 5As shown, the linkage mechanism 4 includes: two first linkage rods 6 are provided on one side of the flap 2, and fixed blocks 7 are fixedly connected to the four flaps 2 near the first linkage rod 6, and the fixed blocks 7 are rotatably connected to the first linkage rod 6 through second rotating shafts 8; a second linkage rod 9 is provided on the side of the first linkage rod 6 away from the fixed block 7, and one end of the second linkage rod 9 is rotatably connected to the first linkage rod 6 through third rotating shafts 10; a telescopic mechanism 11 is provided on the end of the second linkage rod 9 away from the third rotating shaft 10 for applying power to the second linkage rod 9, and the telescopic mechanism 11 pulls the bottom end of the second linkage rod 9 to move obliquely downward, and the bottom end of the second linkage rod 9 moves obliquely downward while pulling the first linkage rod 6 through the third rotating shaft 10, and the first linkage rod 6 simultaneously pulls one end of the fixed block 7 through the second rotating shaft 8, and the other end of the fixed block 7 drives the flap 2, so that the flap 2 can rotate synchronously through the first rotating shaft 3.

[0030] like Figure 2 and Figure 5 As shown, the telescopic mechanism 11 includes: the end of the second linkage rod 9 away from the third rotating shaft 10 is fixedly connected to the fourth rotating shaft 12, the outer surface of the fourth rotating shaft 12 away from the end of the second linkage rod 9 is rotatably connected to the rotating plate 13, the middle part of the rotating plate 13 is fixedly connected to the fifth rotating shaft 14, and the end of the fifth rotating shaft 14 away from the rotating plate 13 rotates with the ventilation duct 1; the end of the rotating plate 13 away from the fourth rotating shaft 12 is fixedly connected to the sixth rotating shaft 15, the outer surface of the sixth rotating shaft 15 is sleeved with a collar 16, the top of the collar 16 is provided with an electric push rod 17, the telescopic ends of the electric push rod 17 are respectively fixedly connected to the collar 16, the end of the electric push rod 17 away from the collar 16 is fixedly connected to a connecting block 18, the interior of the connecting block 18 is rotatably connected to a fixed rod 19, the fixed rod 19 is away from the connecting One end of the block 18 is fixedly connected to the ventilation duct 1, controlling the telescopic end of the electric push rod 17 to retract inward. When the telescopic end of the electric push rod 17 retracts, the connecting block 18 cooperates with the fixed rod 19 to make the electric push rod 17 rotate slightly with the fixed rod 19 as the center. At the same time, the telescopic end of the electric push rod 17 pulls the sixth rotating shaft 15 through the collar 16, and the sixth rotating shaft 15 drives the rotating plate 13. The rotating plate 13 rotates with the fifth rotating shaft 14 as the center and drives the fourth rotating shaft 12 to perform a small rotation movement with the fifth rotating shaft 14 as the center. When the fourth rotating shaft 12 rotates, it pulls the second linkage rod 9 to move obliquely downward to realize the simultaneous opening of the four flaps 2. Conversely, the user controls the telescopic end of the electric push rod 17 to extend outward to control the simultaneous closing of the four flaps 2.

[0031] like Figure 2As shown, the fan mechanism 5 includes: a motor 20 is arranged in the middle of the ventilation duct 1, and connecting rods 21 are fixedly connected to the four corners of the motor 20, and the ends of the connecting rods 21 away from the motor 20 are fixedly connected to the ventilation duct 1; a fan blade 22 is arranged at the output end of the motor 20, and the fan blade 22 is fixedly connected to the output end of the motor 20. When the motor 20 is started, the output end of the motor 20 drives the fan blade 22 to rotate. When the fan blade 22 rotates, the control inside the pig shed can be blown out, so as to achieve the purpose of improving the ventilation effect.

[0032] like Figures 2 to 4 As shown, a protective net 23 is provided on the side of the ventilation duct 1 away from the flap 2, and a limit frame 24 is provided on one side of the protective net 23. The limit frame 24 is fixedly connected to the ventilation duct 1 to prevent the pigs inside the breeding shed from touching the high-speed rotating fan blades 22 and causing damage.

[0033] As shown Figures 2 to 4 As shown, a fixing frame 25 is provided on one side of the protective net 23 away from the limiting frame 24, and bolts 26 are provided at the four corners of the fixing frame 25. One end of the bolts 26 penetrates the fixing frame 25 and the protective net 23 and extends to the inside of the limiting frame 24. The bolts 26 are threadedly connected to the limiting frame 24, which is convenient for users to disassemble and clean the protective net 23, avoiding long-term use of the protective net 23, resulting in a large amount of dust and mosquito corpses adhering to its surface, thereby reducing the ventilation effect of the ventilation duct 1.

[0034] like Figure 2 and Figure 7 As shown, matching slots 28 are provided between the four flaps 2, and the four flaps 2 are meshed with each other through the slots 28, thereby improving the sealing effect at the gaps between the four flaps 2 when the four flaps 2 are closed.

[0035] Working principle: The user controls the telescopic end of the electric push rod 17 to retract inward. When the telescopic end of the electric push rod 17 retracts, the electric push rod 17 rotates slightly with the fixed rod 19 as the center through the cooperation of the connecting block 18 and the fixed rod 19. At the same time, the telescopic end of the electric push rod 17 pulls the sixth rotating shaft 15 through the collar 16. The sixth rotating shaft 15 drives the rotating plate 13. The rotating plate 13 rotates with the fifth rotating shaft 14 as the center and drives the fourth rotating shaft 12 to perform a small-amplitude turnover motion with the fifth rotating shaft 14 as the center. When the fourth rotating shaft 12 rotates, it pulls the second linkage rod 9 to move obliquely downward. The bottom end of the second linkage rod 9 moves obliquely downward through the third rotating shaft 1 0 pulls the first linkage rod 6, and the first linkage rod 6 simultaneously pulls one end of the fixed block 7 through the second rotating shaft 8, and the other end of the fixed block 7 drives the flap 2, so that the flap 2 can rotate synchronously through the first rotating shaft 3. Conversely, the user controls the telescopic end of the electric push rod 17 to extend outward to control the four flaps 2 to close at the same time. At the same time, the user can adjust the opening angle of the flap 2 according to the telescopic length of the electric push rod 17, thereby achieving the purpose of adjusting the ventilation effect of the ventilation duct 1, starting the motor 20, and the output end of the motor 20 drives the fan blade 22 to rotate. While the fan blade 22 rotates, the control inside the pig shed can be blown out, thereby achieving the purpose of improving the ventilation effect.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A pig shed ventilation device, comprising: A ventilation duct (1), wherein both ends of the ventilation duct (1) are fixedly connected to mounting plates (27); The invention is characterized in that four flaps (2) are arranged on one side of the interior of the ventilation duct (1), both ends of the flaps (2) are fixedly connected to a first rotating shaft (3), and one end of the first rotating shaft (3) away from the flaps (2) is rotatably connected to the ventilation duct (1); One side of each flap (2) is provided with a linkage mechanism (4) for controlling the synchronous opening and closing of the four flaps (2); The linkage mechanism (4) comprises a flap (2), one side of each flap (2) being provided with two first linkage rods (6), four flaps (2) being fixedly connected to a fixing block (7) near the first linkage rod (6), and each fixing block (7) being rotationally connected to the first linkage rod (6) via a second rotating shaft (8); A second linkage rod (9) is provided on a side of the first linkage rod (6) away from the fixed block (7), and one end of the second linkage rod (9) is rotatably connected to the first linkage rod (6) via a third rotating shaft (10); An end of the second linkage rod (9) away from the third rotating shaft (10) is provided with a telescopic mechanism (11) for applying power to the second linkage rod (9); A fan mechanism (5) is provided in the middle of the ventilation duct (1) for improving the ventilation effect of the ventilation duct (1).

2. The pig shed ventilation device according to claim 1, characterized in that: The telescopic mechanism (11) comprises: One end of the second linkage rod (9) away from the third rotation shaft (10) is fixedly connected to a fourth rotation shaft (12); the outer surface of the end of the fourth rotation shaft (12) away from the second linkage rod (9) is rotatably connected to a rotation plate (13); the middle part of the rotation plate (13) is fixedly connected to a fifth rotation shaft (14); and one end of the fifth rotation shaft (14) away from the rotation plate (13) is rotatable with the ventilation duct (1); One end of the rotating plate (13) away from the fourth rotating shaft (12) is fixedly connected to a sixth rotating shaft (15); a collar (16) is sleeved on the outer surface of the sixth rotating shaft (15); an electric push rod (17) is arranged on the top of the collar (16); the telescopic ends of the electric push rod (17) are respectively fixedly connected to the collar (16); one end of the electric push rod (17) away from the collar (16) is fixedly connected to a connecting block (18); a fixing rod (19) is rotatably connected inside the connecting block (18); and one end of the fixing rod (19) away from the connecting block (18) is fixedly connected to the ventilation duct (1).

3. The piggery ventilation device according to claim 2, characterized in that: The fan mechanism (5) comprises: A motor (20) is disposed in the middle of the ventilation duct (1), and four corners of the motor (20) are fixedly connected to connecting rods (21), and one end of the connecting rod (21) away from the motor (20) is fixedly connected to the ventilation duct (1); The output end of the motor (20) is provided with a fan blade (22), and the fan blade (22) is fixedly connected to the output end of the motor (20).

4. The piggery ventilation device according to claim 3, characterized in that: A protective net (23) is provided on the side of the ventilation duct (1) away from the flap (2), and a limiting frame (24) is provided on one side of the protective net (23), wherein the limiting frame (24) is fixedly connected to the ventilation duct (1).

5. The piggery ventilation device according to claim 4, characterized in that: A fixing frame (25) is provided on a side of the protective net (23) away from the limiting frame (24), and bolts (26) are provided at four corners of the fixing frame (25), one end of each of the bolts (26) passes through the fixing frame (25) and the protective net (23) and extends into the interior of the limiting frame (24), and the bolts (26) are threadedly connected to the limiting frame (24).

6. The piggery ventilation device according to claim 5, characterized in that: Matching slots (28) are provided between the four flaps (2), and the four flaps (2) are meshed with each other via the slots (28).

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