Fresh air system special for small and medium-sized cabs of agricultural machines and engineering machines

Abstract

The utility model discloses a fresh air system special for small and medium-sized cabs of agricultural machinery and engineering machines, and relates to the technical field of fresh air positive pressure pressurization systems in the small and medium-sized cabs. According to the fresh air system special for the small and medium-sized cab of the agricultural machine and the engineering machine, through the arrangement of the supercharger shell body, the filter element body and the supercharging centrifugal fan, invasion of peculiar smells and harmful gas can be isolated, the health of a driver is protected, and the fresh air system is suitable for being used for the small and medium-sized cab of the agricultural machine and the engineering machine. Meanwhile, indoor ventilation can be increased, so that the indoor oxygen content is increased, fatigue is eliminated, the working efficiency is improved, dust is prevented from entering the cab, the indoor cleanliness is kept, and harmful substances such as gas, dust and particulate matter in the cab can be discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to small and medium -sized cab indoor fresh air positive pressure supercharging system technical field, concretely is a kind of fresh air system special for small and medium -sized cab of agricultural machine, engineering machine. BACKGROUND

[0002] The size of the cab in the market is different, and the small cab cannot install positive pressure supercharger due to limited space, resulting in poor air purification effect, therefore, for the installation problem of small cab, especially the cab limited in height direction, a fresh air system special for small and medium -sized cab of agricultural machine, engineering machine is proposed. CONTENT OF UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the utility model provides a fresh air system special for small and medium -sized cab of agricultural machine, engineering machine, which solves the problems in the above background art.

[0004] To achieve the above object, the utility model realizes the following technical scheme: a fresh air system special for small and medium -sized cab of agricultural machine, engineering machine, comprising a supercharger shell body, a fresh air shell upper cover is fixedly connected to the top of the supercharger shell body, a filter element placing frame is placed in the supercharger shell body and below the fresh air shell upper cover, a filter element body is installed in the filter element placing frame, two supercharged centrifugal fans are fixedly connected to the bottom of the supercharger shell body, and two air outlets are fixedly connected to one side of the supercharger shell body.

[0005] Preferably, the supercharged centrifugal fans are located below the filter element body, and the two supercharged centrifugal fans correspond to two air outlets respectively, so that the air purified, adsorbed and filtered by the filter element body in the supercharger shell body can be discharged to the corresponding vehicle ventilation pipeline through the air outlets.

[0006] Preferably, mounting brackets are fixedly connected to the two sides of the supercharger shell body, so that the mounting brackets can be fixedly connected to the corresponding mounting position of the cab.

[0007] Preferably, a plurality of air inlets are formed in the top of the fresh air shell upper cover, so that air can be sucked into the supercharger shell body through the air inlets, so as to purify, adsorb and filter the air in the supercharger shell body.

[0008] Preferably, the filter core placing frame is fixedly connected with the fresh air shell upper cover through bolts, when the filter core body needs to be replaced, the fresh air shell upper cover is taken off from the top of the supercharger shell body, then the filter core placing frame is taken off from the bottom of the fresh air shell upper cover, then the filter core body is taken out from the filter core placing frame, then the new filter core body is placed into the filter core placing frame, then the filter core placing frame is fixedly connected with the bottom of the fresh air shell upper cover through bolts, the fresh air shell upper cover is fixedly connected with the top of the supercharger shell body through bolts, so that the replacement of the filter core body is completed, and the air in the supercharger shell body is purified, adsorbed and filtered through the filter core body.

[0009] The utility model provides a kind of new air system special for small and medium-sized cab in agricultural machine, engineering machine, with the following beneficial effects:

[0010] The new air system special for small and medium-sized cab in agricultural machine, engineering machine, by being provided with supercharger shell body, filter core body and pressure centrifugal fan, the invasion of peculiar smell and harmful gas can be isolated, the health of driver is protected, indoor ventilation can be increased at the same time, so that the oxygen content in room is increased, fatigue is eliminated, work efficiency is improved, dust is prevented from entering cab, indoor is kept clean, harmful substances such as gas, dust, particulate matter in cab can be discharged, the system can be used for the model that height and length space are insufficient to install pressure machine, so as to prevent dust, peculiar smell and the like in air from entering small-sized cab inside. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is whole three-dimensional structure schematic diagram of the utility model;

[0012] Figure 2 It is supercharger shell body bottom view structure schematic diagram of the utility model;

[0013] Figure 3 It is whole side view three-dimensional structure schematic diagram of the utility model;

[0014] Figure 4 It is supercharger shell body side view structure schematic diagram of the utility model;

[0015] Figure 5 It is fresh air shell upper cover top view structure schematic diagram of the utility model;

[0016] Figure 6 It is supercharger shell body front view structure schematic diagram of the utility model.

[0017] In the drawing: 1, supercharger shell body;2, mounting bracket;3, filter core placing frame;4, filter core body;5, fresh air shell upper cover;6, pressure centrifugal fan;7, air outlet. DETAILED DESCRIPTION

[0018] Clearly, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Embodiment one

[0020] Please refer to Figures 1 to 6 The utility model provides a technical scheme: a fresh air system special for small and medium sized cab in agricultural machinery and engineering machinery, including booster casing body 1, the top of booster casing body 1 is fixedly connected with fresh air casing upper cover 5 through bolt, the inside of booster casing body 1 and below fresh air casing upper cover 5 place have filter element placing frame 3, install filter element body 4 in filter element placing frame 3, the bottom of the inner chamber of booster casing body 1 is fixedly connected with two booster centrifugal fan 6, one side of booster casing body 1 is fixedly connected with two air outlet 7.

[0021] Two booster centrifugal fan 6 correspond to two air outlet 7 respectively, can be filtered after the air that enters to the inside of booster casing body 1 is purified adsorption filter through air outlet 7 and is discharged to the corresponding vehicle ventilation pipeline.

[0022] The both sides of booster casing body 1 are fixedly connected with mounting bracket 2, through mounting bracket 2, corresponding installation position of cab can be fixedly connected.

[0023] The top of fresh air casing upper cover 5 is provided with a plurality of air inlets, air can be sucked into the inside of booster casing body 1 through the air inlet, so as to purify and filter the air in the inside of booster casing body 1.

[0024] Filter element placing frame 3 is fixedly connected with fresh air casing upper cover 5 through bolt, when filter element body 4 needs to be replaced, fresh air casing upper cover 5 is taken off from the top of booster casing body 1, then filter element placing frame 3 is taken off from the bottom of fresh air casing upper cover 5, then filter element body 4 is taken out from filter element placing frame 3, then new filter element body 4 is placed into the inside of filter element placing frame 3, then filter element placing frame 3 is fixed on the bottom of fresh air casing upper cover 5 through bolt, fresh air casing upper cover 5 is fixed on the top of booster casing body 1 through bolt, so that the replacement work of filter element body 4 is completed, so as to purify and filter the air in the inside of booster casing body 1 through filter element body 4.

[0025] Only need to access the power supply of corresponding voltage 12V / 24 requirements, the system can be operated, the system uses a rocker switch to control, booster centrifugal fan 6 has two kinds of states of opening / closing.

[0026] Embodiment two

[0027] The utility model provides a technical scheme: filter core body 4 adopts the structure of embedding in filter core placing frame 3 inside, also can change into the installation and replacement of front and back pull -out type replacement mode, pull -out type structure has no filter core placing frame 3, welds L type block for fixing filter core body 4 both sides at the bottom of fresh air shell body upper cover 5, when using, through two L type blocks, limit filter core body 4 in the below of fresh air shell body upper cover 5.

[0028] Summarizing, the new air system special for small and medium-sized cab of agricultural machinery and engineering machinery, when using, the booster centrifugal fan 6 starts, the outside air enters the booster shell body 1 inside through the fresh air shell body upper cover 5, then passes through the filter core body 4 first, the filter core body 4 adsorbs the dust, fine particles and peculiar smell in the air, the fresh air after filtering is driven by the booster centrifugal fan 6, and is sent into the corresponding air outlet in the cab through the air outlet 7, so that the pressure inside the cab is higher than the outside pressure, and the indoor positive pressure effect is achieved.

[0029] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A new air system special for small and medium-sized cab in agricultural machinery and engineering machinery, comprising a supercharger shell body (1), characterized in that: The top of the booster shell body (1) is fixedly connected with a fresh air shell upper cover (5) through bolts, a filter core placing frame (3) is placed inside the booster shell body (1) and below the fresh air shell upper cover (5), a filter core body (4) is installed inside the filter core placing frame (3), the bottom of the inner cavity of the booster shell body (1) is fixedly connected with two booster centrifugal fans (6), and one side of the booster shell body (1) is fixedly connected with two air outlets (7).

2. The fresh air system for small and medium-sized cabs of agricultural and engineering machines according to claim 1, characterized in that: The booster centrifugal fans (6) are all below the filter core body (4), and the two booster centrifugal fans (6) correspond to the two air outlets (7) respectively.

3. The fresh air system for small and medium-sized cabs of agricultural and engineering machines according to claim 1, characterized in that: The two sides of the booster shell body (1) are fixedly connected with mounting brackets (2).

4. The fresh air system for small and medium-sized cabs of agricultural and engineering machines according to claim 1, characterized in that: The top of the fresh air shell upper cover (5) is provided with a plurality of air inlets.

5. The fresh air system for small and medium-sized cabs of agricultural and engineering machines according to claim 1, characterized in that: The filter core placing frame (3) is fixedly connected with the fresh air shell upper cover (5) through bolts.

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