Agricultural machinery cab air outlet structure and agricultural machinery

Abstract

The utility model relates to an agricultural machinery cab air outlet structure and agricultural machinery, the agricultural machinery cab air outlet structure comprises an air duct assembly and a plurality of stand column jackets, the air duct assembly is used for being installed on a top cover and is communicated with an air conditioner exhaust outlet, each stand column jacket is vertically arranged and is used for being installed on a cab stand column, and the stand column jackets are communicated with the air conditioner exhaust outlet. Each stand column wrapping shell is of an upper opening structure, an air guide groove is formed in each stand column wrapping shell and communicates with the air duct assembly, a plurality of air outlets communicating with the air guide grooves are formed in the side wall of each stand column wrapping shell in a penetrating mode, and the air outlets in each stand column wrapping shell are vertically arranged at intervals. The technical problems that an existing agricultural machine air conditioner directly blows the head of a driver, and the using effect is poor can be solved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to an air outlet structure for an agricultural machinery cab and agricultural machinery. Background Technology

[0002] Existing agricultural machinery, such as peanut harvesters, tractors, rotary tillers, seeders, rice transplanters, and harvesters, has a cab structure where the driver operates the machine, with the roof supported by pillars. To meet driver comfort requirements, air conditioning is installed in the roof, blowing cool or warm air through evaporators and other equipment to raise or lower the temperature of the cab. However, the air conditioning vents in existing agricultural machinery cabs are mostly independently located on the roof cover, resulting in the air blowing directly onto the driver's head and poor performance. Utility Model Content

[0003] This utility model addresses the technical problem of existing agricultural machinery air conditioners blowing directly onto the driver's head, resulting in poor performance. It provides an air outlet structure for the cab of an agricultural machinery and related agricultural machinery.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] This utility model provides an air outlet structure for an agricultural machinery cab, including an air duct assembly and multiple column housings. The air duct assembly is installed on the top cover and communicates with the air conditioning exhaust vent. Each column housing is vertically arranged and installed on the cab column. Each column housing has an upward opening structure and forms an air guide groove inside. Each air guide groove is connected to the air duct assembly. The side wall of each column housing has multiple air outlets that communicate with the air guide grooves. The air outlets on each column housing are vertically spaced.

[0006] The beneficial effects of this utility model are as follows: During use, the cold or warm air blown out by the air conditioner can enter the air duct assembly, and then be guided into the air guide slots of each column housing, and finally blown out from each air outlet. At this time, each vertically spaced air outlet can blow air from top to bottom onto the entire cab, quickly lowering or raising the temperature of the entire cab, improving the driver's comfort, and thus improving the technical problem of existing agricultural machinery air conditioners blowing directly on the driver's head and having poor performance.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, each of the column enclosures includes an inner enclosure and an outer enclosure, the inner enclosure and the outer enclosure having an opening structure facing each other, and the open end of the inner enclosure extending into and detachably connected to the open structure of the outer enclosure, the inner enclosure and the outer enclosure together forming the air guide groove, the closed end of the inner enclosure being used for installation on the cab column, and each of the air outlets being opened at the closed end of the outer enclosure.

[0009] The beneficial effects of adopting the above-mentioned further solution are as follows: During installation, the open end of the inner shell is first inserted into and detachably connected to the open structure of the outer shell, and the two together form an air guide channel. Then, the closed end of the inner shell is installed on the cab pillar. In this way, the installation of the entire pillar shell is completed. At this time, each air outlet opens away from the inner shell and towards the interior space of the cab. During use, the cold or warm air in the air duct assembly enters the air guide channel formed by the inner and outer shells, and then is discharged from the air outlet and enters the cab.

[0010] Furthermore, each of the aforementioned air outlets can be detachably connected to a flap component.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the air outlet direction can be adjusted by using the louvered component, thereby improving the usage effect.

[0012] Furthermore, each of the column housings has multiple air guide plates fixedly connected in its air guide groove. The number of air guide plates in each column housing is equal to the number of the corresponding sway blades. Each air guide plate is positioned directly above each sway blade. One end of each air guide plate is fixedly connected to the side wall of the column housing where the air outlet is located, and the other end extends downward at an angle.

[0013] The beneficial effects of adopting the above-mentioned further solution are: the air guide plate can block the swaying blades to prevent the airflow from blowing directly on the swaying blades, and the air guide plate can guide the downward flowing cold or warm air to the other side wall opposite the air outlet opened in the column shell. Under the reverse action of the other side wall, the airflow is guided to the corresponding swaying blade, so that the cold or warm air is discharged from the corresponding air outlet.

[0014] Furthermore, the air duct assembly includes a left front air duct, a right front air duct, a left rear air duct, and a right rear air duct, all of which have a through-open structure. The two ends of the left front air duct are respectively connected to one end of the right front air duct and one end of the left rear air duct. The other end of the right front air duct is connected to one end of the right rear air duct. The other end of the left rear air duct is connected to the other end of the right rear air duct. The left front air duct, the right front air duct, the left rear air duct, and / or the right rear air duct are used to connect to the air conditioning exhaust vent. The left front air duct, the right front air duct, the left rear air duct, and / or the right rear air duct are connected to the upper opening of the corresponding column casing.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the ends of the left front air duct, right front air duct, left rear air duct and right rear air duct are connected to form a ring-shaped air duct assembly, which is installed on the top cover of the cab. In use, the air blown out by the air conditioner is guided and diverted through the ring-shaped air duct assembly, and the air is diverted to each air guide duct.

[0016] Furthermore, the ends of the left front air duct, the right front air duct, the left rear air duct, and the right rear air duct that are connected to each other are all plugged into each other, and the plugging surfaces are all provided with a first sealing layer.

[0017] The beneficial effect of adopting the above-mentioned further solution is that it improves the connection and sealing of the plug end through the first sealing layer, preventing air leakage.

[0018] Furthermore, at least the side walls of the left front air duct and the right front air duct are fixedly connected with branch pipes, one end of each branch pipe is connected to the inner cavity of the left front air duct and the right front air duct respectively, and the other end is connected to the upper opening of the corresponding column shell respectively.

[0019] The beneficial effect of adopting the above-mentioned further solution is that warm or cold air in the air duct assembly can be introduced into the corresponding column housing through the branch pipe, and then blown through the air outlet.

[0020] Furthermore, the other end of each branch pipe is connected to the corresponding column casing by insertion, and the insertion surface is provided with a second sealing layer.

[0021] The beneficial effect of adopting the above-mentioned further solution is that it improves the connection and sealing of the plug end through the second sealing layer, preventing air leakage.

[0022] Furthermore, it also includes a connecting pipe and a storage box, one end of the connecting pipe being connected to the side wall of the air duct assembly, and the other end being connected to the storage box.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the cold and hot airflow inside the air duct assembly can be guided to the storage box through the connecting pipe, so as to realize the refrigeration and heat preservation function of the items placed in the storage box.

[0024] This utility model also provides an agricultural machine, including the aforementioned air outlet structure for the agricultural machine cab. Attached Figure Description

[0025] Figure 1 This is an isometric view of the air outlet structure of the agricultural machinery cab of this utility model;

[0026] Figure 2 For the present utility model Figure 1 Enlarged view of section A in the middle;

[0027] Figure 3 This is an installation structure diagram of the air outlet structure of the agricultural machinery cab of this utility model;

[0028] Figure 4 For the present utility model Figure 3 Enlarged view of section B;

[0029] Figure 5 This is a structural diagram of the column casing of the air outlet structure of the agricultural machinery cab of this utility model;

[0030] Figure 6 For the present utility model Figure 5 A magnified view of the C-axis;

[0031] Figure 7 For the present utility model Figure 5 Enlarged view of section D in the middle;

[0032] Figure 8 This is a structural diagram of the air duct assembly of the agricultural machinery cab air outlet structure of this utility model;

[0033] Figure 9 For the present utility model Figure 8 Enlarged view of the left side;

[0034] Figure 10 For the present utility model Figure 9 Enlarged view of the left side of the image.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Air duct assembly; 11. Front left air duct; 111. Bracket; 12. Front right air duct; 13. Rear left air duct; 131. Angled air outlet; 14. Rear right air duct; 15. First sealing layer; 16. Branch pipe; 17. Second sealing layer; 2. Column casing; 21. Inner casing; 22. Outer casing; 3. Air outlet; 4. Baffle; 5. Air guide plate; 6. Connecting pipe; 7. Storage box; 71. Box cover; 72. Ear plate; 8. Top cover; 9. Column. Detailed Implementation

[0037] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0038] Example 1

[0039] like Figures 1 to 5This utility model provides an air outlet structure for an agricultural machinery cab, including an air duct assembly 1 and multiple column housings 2. The air duct assembly 1 is installed on the top cover 8 and connected to the air conditioning exhaust vent. Each column housing 2 is vertically arranged and installed on the cab column 9. Each column housing 2 has an upward opening structure and forms an air guide groove inside. Each air guide groove is connected to the air duct assembly 1. Multiple air outlets 3 that connect to the air guide grooves are opened through the side wall of each column housing 2. Each air outlet 3 on each column housing 2 is vertically spaced.

[0040] The beneficial effects of this embodiment are as follows: During installation, the air duct assembly 1 is installed on the top cover 8 of the cab roof and connected to the air conditioner's exhaust vent. Then, each column housing 2 is installed on the column 9 of each cab, ensuring that each column housing 2 is connected to the air duct assembly 1. At the same time, the air outlet 3 of each column housing 2 faces the interior space of the cab. During use, the cold or warm air blown out by the air conditioner can enter the air duct assembly 1 and then be guided into the air guide groove of each column housing 2, and finally blown out from each air outlet 3. At this time, each vertically spaced air outlet 3 can blow air from top to bottom onto the entire cab, quickly lowering or raising the temperature of the entire cab and improving the driver's comfort. This improves the technical problem of existing agricultural machinery air conditioners blowing directly on the driver's head and having poor performance.

[0041] Specifically, the column housing 2 can be installed on the column 9 at the front of the cab, and the air outlet 3 opens to the rear, so that the air blown out of the air outlet 3 blows towards the rear of the driver, avoiding direct airflow to the driver.

[0042] Example 2

[0043] like Figures 5 to 7 Based on embodiment 1, each column shell 2 includes an inner shell 21 and an outer shell 22. The inner shell 21 and the outer shell 22 have an opening structure facing each other, and the open end of the inner shell 21 extends into and is detachably connected to the opening structure of the outer shell 22. The inner shell 21 and the outer shell 22 together form an air guide channel. The closed end of the inner shell 21 is used to install on the cab column 9, and each air outlet 3 is opened at the closed end of the outer shell 22.

[0044] The beneficial effect of adopting the preferred solution in the above embodiments is that, during installation, the open end of the inner shell 21 is first inserted into and detachably connected to the open structure of the outer shell 22, and the two together form an air guide channel. Then, the closed end of the inner shell 21 is installed on the cab column 9, thus completing the installation of the entire column shell 2. At this time, each air outlet 3 opens away from the inner shell 21 and towards the interior space of the cab. During use, the cold or warm air in the air duct assembly 1 enters the air guide channel formed by the inner shell 21 and the outer shell 22, and then is discharged from the air outlet 3 and enters the cab.

[0045] Both the inner shell 21 and the outer shell 22 have a "U"-shaped opening structure, and both have a closed structure at the bottom.

[0046] Based on the above embodiments, the open ends of the inner shell 21 and the outer shell 22 can be connected to each other by screws (e.g., ...). Figure 2 Furthermore, the closed end of the inner casing 21 can also be connected to the column 9 by screws (e.g., Figure 5 ).

[0047] The inner shell 21 is completely inserted into the opening of the outer shell 22, so that when the inner shell 21 is installed on the column 9, the outer shell 22 can simultaneously cover the column 9.

[0048] Example 3

[0049] like Figures 5 to 7 Based on embodiments 1 and 2, the air outlet 3 can be detachably connected to the swivel blade 4.

[0050] The advantage of adopting the preferred solution in the above embodiments is that the air outlet direction can be adjusted by the flap 4, thereby improving the usage effect.

[0051] During the specific installation, such as Figure 6 An installation platform located inside the outer casing 22 can be set at the air outlet 3 of the outer casing 22. The swivel component 4 is inserted into the air outlet 3 and plugged into the installation platform to achieve quick installation.

[0052] The hinge component 4 can be purchased from the market and installed.

[0053] Example 4

[0054] like Figures 5 to 7 Based on embodiments 1-3, multiple air guide plates 5 are fixedly connected in the air guide groove of each column housing 2. The number of air guide plates 5 in each column housing 2 is equal to the number of corresponding swaying blades 4, and each air guide plate 5 is correspondingly arranged directly above each swaying blade 4. One end of each air guide plate 5 is fixedly connected to one side wall of the column housing 2 where the air outlet 3 is opened, and the other end extends downward at an angle.

[0055] The beneficial effect of adopting the preferred solution in the above embodiments is that the air guide plate 5 blocks the swaying blade 4, preventing the airflow from blowing directly onto the swaying blade 4, and guides the downward flowing cold or warm air through the air guide plate 5, directing the airflow to the other side wall opposite to the air outlet 3 opened in the column shell 2, and under the reverse action of the other side wall, the airflow is directed to the corresponding swaying blade 4, so that the cold or warm air is discharged from the corresponding air outlet 3.

[0056] Based on the above embodiment, the air guide plate 5 is fixedly connected to the inner wall of the closed end of the outer casing 22 to shield the mounting platform used to install the swivel component 4.

[0057] Example 5

[0058] like Figure 1 , Figure 2 , Figure 3 ,as well as Figures 8-10 Based on embodiments 1-4, the air duct assembly 1 includes a left front air duct 11, a right front air duct 12, a left rear air duct 13, and a right rear air duct 14, all of which have a through-open structure. The two ends of the left front air duct 11 are connected to one end of the right front air duct 12 and one end of the left rear air duct 13, respectively. The other end of the right front air duct 12 is connected to one end of the right rear air duct 14. The other end of the left rear air duct 13 is connected to the other end of the right rear air duct 14. The left front air duct 11, the right front air duct 12, the left rear air duct 13, and / or the right rear air duct 14 are used to connect with the air conditioning exhaust vent. The left front air duct 11, the right front air duct 12, the left rear air duct 13, and / or the right rear air duct 14 are connected to the upper opening of the corresponding column shell 2.

[0059] The beneficial effect of adopting the preferred solution in the above embodiments is that the ends of the left front air duct 11, right front air duct 12, left rear air duct 13 and right rear air duct 14 are connected to form an annular air duct assembly 1, which is installed on the top cover 8 of the cab. In use, the air blown out by the air conditioner is guided and diverted through the annular air duct assembly 1, and the air is diverted to each air guide duct.

[0060] As one of the specific solutions in this embodiment, the column casing 2 is provided and is connected to one of the left front air duct 11, right front air duct 12, left rear air duct 13 and right rear air duct 14. At this time, three of the air ducts are not connected to the column casing 2.

[0061] As a second specific embodiment, two column housings 2 are provided, each connected to one of the following: left front air duct 11, right front air duct 12, left rear air duct 13, and right rear air duct 14. In this case, two of the air ducts are not connected to the column housing 2. The figure shows that two column housings 2 are provided, each connected to the left front air duct 11 and the right front air duct 12.

[0062] As a third specific solution in this embodiment, the column casing 2 is provided with three parts, and is respectively connected to one of the left front air duct 11, right front air duct 12, left rear air duct 13 and right rear air duct 14. At this time, one of the air ducts is not connected to the column casing 2.

[0063] As a fourth specific solution in this embodiment, the column casing 2 is provided with four sections, and each section is connected to one of the left front air duct 11, right front air duct 12, left rear air duct 13 and right rear air duct 14.

[0064] As a fifth specific embodiment, the column casing 2 is provided with at least five, specifically five, six, seven, or eight, etc. In this case, the left front air duct 11, right front air duct 12, left rear air duct 13, and right rear air duct 14 are all connected to at least one column casing 2.

[0065] Based on the above embodiments, at least one end of the left front air duct 11, right front air duct 12, left rear air duct 13 and / or right rear air duct 14 is fixedly connected to a corrugated connecting section. The corrugated connecting section is a flexible structure so that its length can be adjusted by stretching and contracting to achieve the connection of the entire air duct assembly 1.

[0066] Brackets 111 are fixedly connected to the upper side of the left front air duct 11, right front air duct 12, left rear air duct 13 and right rear air duct 14. Each bracket 111 has a through bolt hole so that it can be connected and installed to the ceiling.

[0067] like Figure 8 and Figure 9 An oblique air vent 131 is provided on the side wall of both the left rear air duct 13 and the right rear air duct 14. The oblique air vent 131 opens downward at an angle. After installation, the oblique air vent 131 blows air downward toward the rear of the cab, so as to create the effect of blowing air toward the rear of the driver.

[0068] The slanted air vent 131 can be circular, rectangular, or other shapes.

[0069] Example 6

[0070] like Figure 9 and Figure 10 Based on embodiments 1-5, the ends of the left front air duct 11, right front air duct 12, left rear air duct 13 and right rear air duct 14 that are connected to each other are all plugged into each other, and the plugged surfaces are all provided with a first sealing layer 15.

[0071] The advantage of adopting the preferred solution in the above embodiments is that the connection sealing of the plug end is improved by the first sealing layer 15, and air leakage is prevented.

[0072] The first sealing layer 15 can be a sponge layer, a rubber layer, etc.

[0073] Example 7

[0074] like Figure 9 and Figure 10 Based on embodiments 1-6, branch pipes 16 are fixedly connected to the side walls of the left front air duct 11 and the right front air duct 12. One end of the two branch pipes 16 is connected to the inner cavity of the left front air duct 11 and the right front air duct 12 respectively, and the other end is connected to the upper opening of the corresponding column shell 2 respectively.

[0075] The beneficial effect of adopting the preferred solution in the above embodiments is that the warm or cold air in the air duct assembly 1 is introduced into the corresponding column housing 2 through the branch pipe 16, and then blown through the air outlet 3.

[0076] Example 8

[0077] like Figure 9 and Figure 10 Based on embodiments 1-7, the other end of the branch pipe 16 is connected to the corresponding column casing 2 by insertion, and the insertion surface is provided with a second sealing layer 17.

[0078] The advantage of adopting the preferred solution in the above embodiments is that the connection sealing of the plug end is improved by the second sealing layer 17, preventing air leakage.

[0079] The second sealing layer 17 can be a sponge layer, a rubber layer, etc.

[0080] Example 9

[0081] like Figures 1 to 4 Based on embodiments 1-8, the air outlet structure of the agricultural machinery cab described in this utility model further includes a connecting pipe 6 and a storage box 7. One end of the connecting pipe 6 is connected to the side wall of the ventilation duct assembly 1, and the other end is connected to the storage box 7.

[0082] The beneficial effect of adopting the preferred solution in the above embodiments is that the cold and hot airflow inside the air duct assembly 1 is guided to the storage box 7 through the connecting pipe 6, thereby achieving the function of refrigeration and heat preservation for the items placed in the storage box 7. The storage box 7 can be installed on the top cover 8 of the ceiling.

[0083] By adopting the aforementioned storage box 7, the functions of heating and refrigerating drinking water and food can be realized in extreme weather conditions such as high temperature or severe cold, solving the driver's need for refrigerating and heating drinking water and food during long working hours, and improving the driver's comfort when driving agricultural machinery.

[0084] The connecting pipe 6 can be connected to the side wall of the left front air duct 11, right front air duct 12, left rear air duct 13, or right rear air duct 14 of the air duct assembly 1. Figure 1 It is shown in the middle as being connected to the side wall of the right rear air duct 14.

[0085] Based on the above embodiment, the storage box 7 has a side opening, and the opening is covered by a lid 71 to facilitate the placement of items. The opening is angled downwards for easy operation. A sealing sponge is provided on the inside of the lid 71 to ensure airtightness. Multiple ear plates 72 are fixedly connected to the side wall of the storage box 7 to securely connect the storage box 7 to the frame of the top cover 8.

[0086] Example 10

[0087] This utility model also provides an agricultural machine, including an air outlet structure for the cab of an agricultural machine as described in Examples 1-9.

[0088] The agricultural machinery can be peanut harvesters, tractors, rotary tillers, seeders, rice transplanters, and harvesters, etc.

[0089] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0091] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0092] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0094] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air outlet structure for an agricultural machinery cab, characterized in that, It includes a duct assembly (1) and multiple column housings (2). The duct assembly (1) is used to be installed on the top cover (8) and connected to the air conditioning exhaust port. Each column housing (2) is vertically arranged and is used to be installed on the cab column (9). Each column housing (2) has an upward opening structure and forms an air guide groove inside. Each air guide groove is connected to the duct assembly (1). The side wall of each column housing (2) is provided with multiple air outlets (3) that are connected to the air guide groove. Each air outlet (3) on each column housing (2) is vertically spaced.

2. The air outlet structure of an agricultural machinery cab according to claim 1, characterized in that, Each of the column housings (2) includes an inner housing (21) and an outer housing (22). The inner housing (21) and the outer housing (22) have an opening structure facing each other. The opening end of the inner housing (21) extends into and is detachably connected to the opening structure of the outer housing (22). The inner housing (21) and the outer housing (22) together form the air guide groove. The closed end of the inner housing (21) is used to be installed on the cab column (9). Each of the air outlets (3) is opened at the closed end of the outer housing (22).

3. The air outlet structure of an agricultural machinery cab according to claim 1, characterized in that, Each of the air outlets (3) can be detachably connected to a flap (4).

4. The air outlet structure of an agricultural machinery cab according to claim 3, characterized in that, Each of the column housings (2) has multiple air guide plates (5) fixedly connected in the air guide groove. The number of air guide plates (5) in each column housing (2) is equal to the number of the corresponding swaying blades (4). Each air guide plate (5) is positioned directly above each swaying blade (4). One end of each air guide plate (5) is fixedly connected to the side wall of the column housing (2) where the air outlet (3) is opened, and the other end extends downward at an angle.

5. The air outlet structure of an agricultural machinery cab according to claim 1, characterized in that, The air duct assembly (1) includes a left front air duct (11), a right front air duct (12), a left rear air duct (13), and a right rear air duct (14), all of which have a through-open structure. The two ends of the left front air duct (11) are connected to one end of the right front air duct (12) and one end of the left rear air duct (13), respectively. The other end of the right front air duct (12) is connected to one end of the right rear air duct (14), and the other end of the left rear air duct (13) is connected to the other end of the right rear air duct (14). The left front air duct (11), the right front air duct (12), the left rear air duct (13), and / or the right rear air duct (14) are used to connect with the air conditioning exhaust port. The left front air duct (11), the right front air duct (12), the left rear air duct (13), and / or the right rear air duct (14) are connected to the upper opening of the corresponding column shell (2).

6. The air outlet structure of an agricultural machinery cab according to claim 5, characterized in that, The ends of the left front air duct (11), the right front air duct (12), the left rear air duct (13) and the right rear air duct (14) are all connected to each other, and the insertion surfaces are all provided with a first sealing layer (15).

7. The air outlet structure of an agricultural machinery cab according to claim 5, characterized in that, At least the side walls of the left front air duct (11) and the right front air duct (12) are fixedly connected with branch pipes (16). One end of each branch pipe (16) is connected to the inner cavity of the left front air duct (11) and the right front air duct (12), respectively, and the other end is connected to the upper opening of the corresponding column shell (2).

8. The air outlet structure of an agricultural machinery cab according to claim 7, characterized in that, The other end of each of the branch pipes (16) is connected to the corresponding column casing (2) and the insertion surface is provided with a second sealing layer (17).

9. The air outlet structure of an agricultural machinery cab according to any one of claims 1-8, characterized in that, It also includes a connecting pipe (6) and a storage box (7), one end of the connecting pipe (6) is connected to the side wall of the air duct assembly (1), and the other end is connected to the storage box (7).

10. An agricultural machine, characterized in that, Including the air outlet structure of an agricultural machinery cab as described in any one of claims 1-9.

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