A novel seal system for a loader partition
By adopting an integrated partition and fixing method on the loader, the problem of poor sealing of the engine compartment was solved, which prevented foreign objects from entering and high-temperature airflow from flowing to the radiator, thus improving the safety and heat dissipation efficiency of the loader.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-12
AI Technical Summary
Poor sealing of the loader's engine compartment allows flammable debris to enter and high-temperature airflow to flow towards the radiator, posing a fire hazard and causing poor heat dissipation.
The integrated baffle, secured by rigid pipes and flexible hoses, combined with welded flanges and rubber hose clamps, ensures a tight seal between the engine and radiator, preventing debris from entering and blocking high-temperature airflow to the radiator.
It effectively prevents flammable debris from entering the engine compartment, reduces the risk of ignition at high temperatures, ensures the normal operation of the radiator, reduces costs, and improves assembly efficiency.
Smart Images

Figure CN224351306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a novel loader partition sealing system, belonging to the field of engineering machinery technology. Background Technology
[0002] Loaders are traditional and widely used earthmoving and transport machinery, extensively used in earthwork construction and other engineering projects. Most loaders operate in poorly ventilated environments with high levels of dust and debris, such as factories, construction sites, and workshops. If the engine compartment is not properly sealed, flammable materials can easily enter, accumulating near high-temperature components like the aftertreatment tank, turbocharger housing, and exhaust manifold, posing a fire hazard. Simultaneously, the radiator's air intake is relatively close to the engine. If the engine compartment is poorly sealed, hot air from inside the engine compartment will be drawn to the radiator surface by the fan, causing the radiator's intake temperature to rise and resulting in poor heat dissipation. Poor heat dissipation forces the entire machine to operate under continuous high-temperature conditions, significantly impacting the lifespan of engine components. Currently, the engine compartment baffle sealing system for loaders requires ventilation holes (round or elongated holes) through which cooling pipes connect the engine and radiator. To avoid interference between the pipes and the baffle, these holes must be larger than the pipe's outer diameter, resulting in significant gaps in the baffle. The presence of this gap could allow flammable debris to be blown into the engine compartment, posing a fire hazard. Additionally, the gap allows hot airflow from the engine compartment to flow towards the radiator surface, causing the radiator temperature to rise and hindering heat dissipation. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, this utility model provides a novel loader partition sealing system, which optimizes the existing loader partition sealing system to prevent flammable debris from entering the engine compartment and to prevent the high-temperature airflow in the engine compartment from flowing to the radiator.
[0004] This utility model is achieved through the following technical solution: a novel loader partition sealing system, comprising an aftertreatment tank, an engine, a partition, a radiator, a rear cover, a right cover, a top cover, and a left cover. The aftertreatment tank is located above the engine. The engine, the aftertreatment tank, and the radiator constitute the loader's power cooling system. The rear cover, right cover, top cover, and left cover are used to seal the power cooling system. The partition separates the engine and the radiator. The front of the engine is the cab, and the partition is installed on the rear side of the engine. The radiator is installed on the rear side of the partition. The partition prevents the high temperature inside the engine compartment from blowing onto the radiator.
[0005] The partition is located in front of the air inlets of the right cover, top cover, and left cover, and the partition separates the air inlets of the cover from the engine compartment.
[0006] The partition is an integral partition with a round hole through which a rigid pipe can pass. The rigid pipe is fixed to the partition by welding flanges and bolts.
[0007] The partition plate has a welding plate on top and a square hole for the passage of a flexible hose. The flexible hose is fixed with a rubber clamp, which is fixed to the partition plate with bolts. The partition plate is perforated for the passage of the flexible hose. The diameter of the square hole in the partition plate is larger than the outer diameter of the flexible hose. At the same time, the outer dimensions of the rubber clamp are larger than the diameter of the square hole in the partition plate. The welding plate is welded to the partition plate and is used to assemble the rubber clamp for the flexible hose.
[0008] The round holes on both sides of the partition are used to fix the partition. The partition is fixed on the post-processing bracket. The two small round holes on the lower right side of the partition are used for the installation of the wall-mounted connector.
[0009] The hard-pipe welded flange of the power cooling system is fixed to the partition plate by the welded flange.
[0010] The rubber hose clamp consists of a rubber component, a mounting plate nut, a stud, and a mounting plate. The rubber hose clamp is fixed to the welding plate of the partition by the mounting plate nut and the stud, and the hose is fixed by the rubber hose clamp.
[0011] The beneficial effects of this utility model are: it completely prevents flammable debris from entering the engine compartment, reducing the risk of ignition at high temperatures. Simultaneously, it prevents hot airflow from the engine compartment from blowing onto the radiator, causing the radiator surface temperature to rise and resulting in poor heat dissipation. Separating the air inlet of the cover plate from the engine compartment prevents debris from entering the engine compartment through the air inlet. The rigid pipe between the engine and the radiator uses flange welding, connecting to the partition plate through the threaded holes of the flange. The fixing method is simple, eliminating the need for additional supports to fix the pipes, thus reducing costs. Installation is simple, requiring no splicing or assembly, improving assembly efficiency. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a layout diagram of the power cooling system of this utility model;
[0014] Figure 2 This is a diagram of the partition sealing system of this utility model;
[0015] Figure 3 This is a structural diagram of the partition of this utility model;
[0016] Figure 4 This is a structural diagram of the rigid tube of this utility model;
[0017] Figure 5 This is a structural diagram of the rubber hose clamp for the flexible hose of this utility model.
[0018] In the diagram: 1. Aftertreatment tank, 2. Engine, 3. Baffle, 3-1. Welded plate, 4. Radiator, 5. Rear cover, 6. Right cover, 7. Top cover, 8. Left cover, 9. Rigid pipe, 9-1. Welded flange, 10. Rubber hose clamp, 10-1. Mounting plate nut, 10-2. Stud, 10-3. Rubber parts, 10-4. Mounting plate, 11. Hoses. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not 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; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0021] like Figure 1 The figure illustrates a novel loader partition sealing system. This diagram shows the arrangement of the loader's power cooling system, including an aftertreatment tank 1, an engine 2, a partition 3, a radiator 4, a rear cover 5, a right cover 6, a top cover 7, and a left cover 8. The aftertreatment tank 1 is located above the engine 2. The engine 2, aftertreatment tank 1, and radiator 4 constitute the loader's power cooling system. The rear cover 5, right cover 6, top cover 7, and left cover 8 are used to seal the power cooling system. The partition 3 separates the engine 2 from the radiator 4. The front of the engine 2 is the cab, and the partition 3 is located behind the engine 2. The radiator 4 is located behind the partition 3. The partition 3 prevents the high temperature inside the engine compartment of the engine 2 from blowing onto the radiator 4, thus preventing the surface temperature of the radiator 4 from rising.
[0022] The airflow of this system is from front to back, with the fan located at the rear. Air is drawn in through the air inlets of the right cover 6, top cover 7, and left cover 8. While the air inlets are relatively small, due to the required airflow, complete sealing cannot be guaranteed, allowing flammable materials to potentially enter. The partition 3 is located in front of the air inlets of the right cover 6, top cover 7, and left cover 8, separating the air inlets of the cover from the engine compartment. The sealing of the partition 3 is crucial; poor sealing allows flammable materials to easily enter the engine compartment. The connecting pipes between the engine compartment and the radiator 4 need to pass through the partition 3, making the size control of the pipe penetrations particularly important.
[0023] Combination Figure 2 The diagram of the partition sealing system shows that all pipes pass through partition 3 without any gaps. Partition 3 is fitted with a sealing strip around its circumference to seal against the machine casing. Pipes passing through radiator 4 include rigid pipes and flexible pipes. Smaller diameter rigid pipes and flexible pipes can be connected using through-wall connectors to ensure the sealing of partition 3. However, rigid pipes and flexible pipes with excessively large diameters cannot be connected using through-wall connectors. Partition 3 has a circular hole through which rigid pipes 9 can pass. The rigid pipes 9 are fixed to partition 3 by welding flanges 9-1 and bolts.
[0024] The partition 3 is provided with a welding plate 3-1 and a square hole for the passage of a flexible hose 11. The flexible hose 11 is fixed with a rubber clamp 10. The rubber clamp 10 is fixed to the partition 3 with bolts. The partition 3 is perforated for the passage of the flexible hose 11. The diameter of the square hole in the partition 3 is larger than the outer diameter of the flexible hose 11. At the same time, the outer dimensions of the rubber clamp 10 are larger than the diameter of the square hole in the partition 3. The welding plate 3-1 is welded to the partition 3 and is used to assemble the rubber clamp 10 for the flexible hose 11.
[0025] Combination Figure 3 The partition structure diagram shows that the partition solution of this utility model adopts an integrated partition, which is simple to install, does not require splicing and assembly, and can improve assembly efficiency.
[0026] The round holes on both sides of the partition 3 are used to fix the partition 3. The partition 3 is fixed on the post-processing bracket. The two small round holes on the lower right side of the partition 3 are used for the installation of the wall-mounted connector.
[0027] Combination Figure 4 The diagram shows the rigid pipe structure. The rigid pipe of the power cooling system is welded to the baffle 3 via a welding flange 9-1. The welding flange 9-1 ensures the sealing of the baffle 3 and also serves to fix the pipeline, eliminating the need for additional supports to fix the rigid pipe and reducing costs. Attention should also be paid to the position and orientation of the welding flange 9-1 on the rigid pipe 9 to ensure easy assembly and disassembly.
[0028] Combination Figure 5 The diagram shows the structure of a rubber hose clamp 10. The rubber hose clamp 10 consists of four rubber parts 10-3, four mounting plate nuts 10-1, two studs 10-2, and one mounting plate 10-4. The rubber hose clamp 10 is fixed to the welding plate 3-1 of the partition 3 by the mounting plate nuts 10-1 and the studs 10-2. The hose 11 is fixed by the rubber hose clamp 10. This fixing method ensures a uniform and aesthetically pleasing pipeline routing.
[0029] In summary, this utility model, through its novel loader partition sealing system, prevents debris from entering the engine compartment, reducing the risk of ignition due to high temperatures in the engine compartment. It also prevents hot airflow from the engine compartment from flowing towards the radiator 4, thus preventing the radiator 4 from overheating and causing poor heat dissipation. The rigid pipe 9 between the engine 2 and the radiator 4 is welded to the partition 3 via a flange threaded hole, simplifying the fixing method and eliminating the need for additional supports, thus reducing costs. The flexible hose 11 between the engine 2 and the radiator 4 is secured with rubber clamps 10, which are bolted to the partition 3, resulting in a more aesthetically pleasing pipe routing. The partition 3 is a one-piece design, simplifying installation and improving assembly efficiency.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel loader partition sealing system, characterized in that: The loader includes an after-treatment tank (1), an engine (2), a partition (3), a radiator (4), a rear cover (5), a right cover (6), a top cover (7), and a left cover (8). The after-treatment tank (1) is located above the engine (2). The engine (2), the after-treatment tank (1), and the radiator (4) constitute the power cooling system of the loader. The rear cover (5), the right cover (6), the top cover (7), and the left cover (8) are used to seal the power cooling system. The partition (3) separates the engine (2) from the radiator (4). The front of the engine (2) is the cab. The partition (3) is installed on the rear side of the engine (2). The radiator (4) is installed on the rear side of the partition (3). The partition (3) prevents the high temperature inside the engine compartment of the engine (2) from blowing onto the radiator (4).
2. The novel loader partition sealing system according to claim 1, characterized in that: The partition (3) is located in front of the air inlet of the right cover plate (6), the top cover plate (7) and the left cover plate (8), and the partition (3) separates the air inlet of the cover plate from the engine compartment.
3. The novel loader partition sealing system according to claim 1, characterized in that: The partition (3) is an integral partition. The partition (3) has a round hole through which the rigid pipe (9) can pass. The rigid pipe (9) is fixed to the partition (3) by welding flange (9-1) and bolts.
4. A novel loader partition sealing system according to claim 1, characterized in that: The partition (3) is provided with a welding plate (3-1) and a square hole for the passage of the hose (11). The hose (11) is fixed with a rubber clamp (10). The rubber clamp (10) is fixed to the partition (3) with bolts. The partition (3) is punched for the passage of the hose (11). The diameter of the square hole of the partition (3) is larger than the outer diameter of the hose (11). At the same time, the outer dimensions of the rubber clamp (10) are larger than the diameter of the square hole of the partition (3). The welding plate (3-1) is welded to the partition (3) and is used to assemble the rubber clamp (10) for the hose (11).
5. A novel loader partition sealing system according to claim 1, characterized in that: The round holes on both sides of the partition (3) are used to fix the partition (3). The partition (3) is fixed on the post-processing bracket. The two small round holes on the lower right side of the partition (3) are used for the installation of the wall-mounted connector.
6. A novel loader partition sealing system according to claim 1, characterized in that: The hard-pipe welding flange (9-1) of the power cooling system is fixed to the partition plate (3) by the welding flange (9-1).
7. A novel loader partition sealing system according to claim 4, characterized in that: The rubber hose clamp (10) consists of a rubber part (10-3), a mounting plate nut (10-1), a stud (10-2), and a mounting plate (10-4). The rubber hose clamp (10) is fixed to the welding plate (3-1) of the partition (3) by the mounting plate nut (10-1) and the stud (10-2). The hose (11) is fixed by the rubber hose clamp (10).