Dustproof net mounting structure for engineering machinery and engineering machinery

Abstract

The dustproof net installation structure comprises a cross beam installed on the air suction port side of a radiator, the air suction port is divided into an upper part and a lower part through the cross beam, and a locking piece is installed on the cross beam; the upper positioning piece is mounted above the air suction port; the lower positioning piece is mounted below the air suction port; the upper dustproof net and the lower dustproof net are provided with upper and lower frames; the upper frame of the upper dustproof net is assembled on the upper positioning piece, the lower frame of the upper dustproof net is provided with a through hole, and the locking plate is inserted into the through hole; the lower frame of the lower dustproof net is assembled on the lower positioning piece, the upper frame of the lower dustproof net is provided with a through hole, and the locking plate is inserted into the through hole. The dustproof net is designed to be of a multi-piece structure, is arranged on the air suction port side of the radiator in an up-and-down arrangement mode, and is matched with the positioning piece and the locking piece, so that operation points are reduced, the disassembly and assembly efficiency is improved, and the dustproof net can be easily taken out from the space between the radiator and a shielding object by reducing the height of each dustproof net.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, and relates to dustproof nets used on engineering machinery, specifically, to a dustproof net installation structure. Background Technology

[0002] Construction machinery refers to specialized mechanical equipment used in fields such as building construction, highways, railways, bridges, tunnels, and water conservancy projects. It includes, but is not limited to, excavators, bulldozers, cranes, and compactors. Among these, excavators are the most commonly used construction machinery, undertaking a wide variety of tasks such as digging, loading, and transportation.

[0003] The radiator is a crucial component of an excavator. Through fins and a fan, it dissipates heat generated by the engine and other critical components into the air, preventing overheating and maintaining the machine's normal, stable operation.

[0004] A clean radiator and sufficient airflow are crucial for its efficient operation. Therefore, a dust filter needs to be installed on the radiator's intake side to prevent dust, sand, insects, and other debris from entering the radiator. This protects the internal components from damage and ensures proper functioning. The dust filter also needs regular cleaning to prevent the accumulation of debris, which can reduce airflow and decrease cooling performance.

[0005] When cleaning the dust filter, it needs to be removed from the radiator to thoroughly remove debris. However, the dust filters 20 currently used on radiators 10 are usually one-piece or two-piece structures, such as... Figure 1 As shown, it has a large volume, and the dustproof net 20 is assembled and fixed to the radiator 10 through the fittings 22 and 23 arranged on the radiator 10 and the dustproof net frame 21.

[0006] In this dustproof mesh installation structure, when other components 30 are arranged in front of the dustproof mesh 20 (on the side opposite to the direction of the radiator 10), and only the upper and lower parts of the front space are open to the outside, the dustproof mesh 20 is difficult to remove from between the radiator 10 and the other components 30 due to its large size and the fact that it is sandwiched between them. Figure 2 As shown. At the same time, since there are many accessories 23 on the dustproof net 20, it is time-consuming and laborious to disassemble them one by one, so there is a problem of difficulty in disassembling and assembling the dustproof net 20.

[0007] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0008] This utility model addresses the problem of difficult disassembly and assembly of dust screens for radiators in the existing technology by proposing an installation structure for dust screens for engineering machinery. By simplifying the disassembly and assembly of dust screens, the maintenance time and cost of radiators can be reduced.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] In one aspect, this utility model proposes an installation structure for a dustproof net for engineering machinery, comprising:

[0011] The crossbeam is installed on the air intake side of the radiator in the construction machinery, dividing the air intake into upper and lower parts. Locking plates are installed on the crossbeam.

[0012] An upper positioning component is mounted on the radiator and positioned above the air intake.

[0013] The lower positioning component is mounted on the radiator and located below the air intake.

[0014] The dustproof net has an upper frame and a lower frame. The upper frame is fitted to the upper positioning member, and the lower frame has a through hole into which the locking piece is inserted.

[0015] The lower dustproof net has an upper frame and a lower frame. The lower frame is fitted to the lower positioning member, and the upper frame has a through hole into which the locking piece is inserted.

[0016] In some embodiments of this application, a pin hole can be opened on the locking plate, and a positioning pin can be installed in the pin hole. The upper dustproof net and the lower dustproof net can be locked on the crossbeam by the cooperation of the locking plate and the positioning pin, thereby realizing the assembly and fixation of the upper dustproof net and the lower dustproof net on the air intake side of the radiator.

[0017] In some embodiments of this application, the through hole can be designed as a strip hole, and the locking plate can be designed as a flat shape. The locking plate has a root and a head that are positioned opposite each other in its length direction. The root of the locking plate is mounted on the crossbeam, and its width is adapted to the length of the strip hole, and its thickness is adapted to the width of the strip hole, so that the locking plate will not wobble up, down, left, or right after being inserted into the strip hole, thereby improving the stability of the upper and lower dustproof nets assembled on the crossbeam. The head of the locking plate is positioned away from the crossbeam and its width is smaller than the width of the root, so as to facilitate the insertion of the locking plate into the through hole. The opening position of the pin hole on the locking plate is determined according to the overlapping thickness of the lower edge of the upper dustproof net and the upper edge of the lower dustproof net, so that after the positioning pin is inserted into the pin hole, the lower edge of the upper dustproof net and the upper edge of the lower dustproof net can be stably locked on the crossbeam by the positioning pin.

[0018] In some embodiments of this application, the locking plate can also be designed as a rotary locking plate, and the through hole can be designed as a strip hole; when the locking plate is rotated to a position perpendicular to the length direction of the strip hole, the upper dustproof net and the lower dustproof net can be locked on the crossbeam.

[0019] In some embodiments of this application, to simplify the installation of the upper dust filter on the radiator, the upper positioning member can be designed as a clamping structure, including two mirror-shaped plates; the plates include an upper vertical plate, a lower vertical plate, and an intermediate horizontal plate connecting the upper and lower vertical plates; the two upper vertical plates are configured to clamp the upper edge plate of the radiator's air intake side and are installed on the radiator; the two lower vertical plates are configured to cooperate with the intermediate horizontal plate to form a U-shaped groove for the upper frame of the upper dust filter to be inserted for positioning.

[0020] In some embodiments of this application, in order to simplify the installation of the lower dust filter on the radiator, the lower positioning member can be designed as a support structure, for example, forming an L-shaped support member, and the horizontal end of the L-shaped support member is installed on the lower edge plate on the air intake side of the radiator. In this way, the L-shaped support member and the lower edge plate cooperate to form a U-shaped groove for the lower frame of the lower dust filter to be inserted to achieve positioning.

[0021] In another aspect, this utility model also proposes an engineering machine, comprising:

[0022] The radiator has an air intake.

[0023] A crossbeam is installed on the air intake side of the radiator, which divides the air intake into upper and lower parts, and a locking plate is installed on the crossbeam.

[0024] An upper positioning member is installed on the radiator, which is located above the air intake;

[0025] A lower positioning component is installed on the radiator, which is located below the air intake.

[0026] The upper dustproof net has an upper frame and a lower frame. The upper frame is fitted to the upper positioning member, and the lower frame has a through hole into which the locking piece is inserted.

[0027] The lower dustproof mesh has an upper frame and a lower frame. The lower frame is fitted to the lower positioning member, and the upper frame has a through hole into which the locking piece is inserted.

[0028] In some embodiments of this application, where other components are also installed on the air intake side of the radiator, thus limiting the installation space of the dust filter to between the radiator and the other components, the dimensions of the upper and lower dust filters can be configured according to the installation position and size of the other components. This allows the other components to only cover one of the upper and lower dust filters, and the lower edge of the upper dust filter and the upper edge of the lower dust filter are completely exposed to the other components. This exposes the operating point, simplifying the installation and removal of the upper and lower dust filters.

[0029] In some embodiments of this application, the lower frame of the upper dustproof net is configured to overlap and be assembled on the crossbeam with the upper frame of the lower dustproof net, and the dustproof nets exposing the other components are configured with their frames overlapping on the outside, so as to facilitate the removal of the dustproof nets exposing the other components first, thereby facilitating the disassembly operation of the dustproof nets covering the other components.

[0030] In some embodiments of this application, the dustproof net located between the other components and the air intake of the radiator can be designed as multiple pieces, arranged in a line along the length of the crossbeam. Compared to placing a large, single piece of dustproof net behind the other components, the smaller, multiple pieces of dustproof net are obviously easier to remove from the narrow space behind the other components, thereby further simplifying the dustproof net assembly and disassembly process.

[0031] Compared with the prior art, the advantages and positive effects of this utility model are mainly reflected in:

[0032] 1. This utility model designs the dustproof net into a multi-piece structure and installs it on the air intake side of the radiator in an upper and lower arrangement to completely cover the air intake of the radiator. This not only allows for sufficient filtration and purification of the air drawn into the radiator, but also, because the height of each dustproof net is reduced, even if other components are installed on the air intake side of the radiator, causing partial obstruction of the dustproof net, it can be easily removed from behind the obstruction, compared to traditional dustproof nets that are level with the air intake of the radiator, thus simplifying the disassembly and assembly of the dustproof net.

[0033] 2. This utility model employs a combination of positioning components (upper and lower positioning components) and locking plates to install the upper and lower dustproof nets onto the radiator. The positioning components can utilize convenient, movable assembly methods such as clamping or supporting to position the upper and lower edges of the upper and lower dustproof nets. The locking plates secure the lower edges of the upper and lower dustproof nets to the crossbeam, thus achieving reliable fixation of the dustproof nets to the radiator. This assembly method, which combines positioning and locking on one side, further simplifies the installation and removal of the dustproof nets and improves the maintenance efficiency of the radiator.

[0034] 3. This utility model designs the lower frame of the upper dustproof net and the upper frame of the lower dustproof net as a stacked structure, so that the upper and lower dustproof nets can share a locking piece for fixation. One unlocking and locking operation can simultaneously change the locking state of the upper and lower dustproof nets. By reducing the number of operation points, the disassembly and assembly speed of the dustproof net can be further improved, and the maintenance time of the radiator can be shortened.

[0035] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0037] Figure 1 This is a schematic diagram of an embodiment of a traditional installation method of a dust filter on a radiator;

[0038] Figure 2 It is Figure 1 A diagram illustrating the process of removing the dust filter from the radiator when it is blocked by other components.

[0039] Figure 3 This is a schematic diagram of the overall structure of an embodiment in which the dustproof mesh installation structure proposed in this utility model is configured on a radiator;

[0040] Figure 4 yes Figure 3 The diagram shows the dust filter installation structure and the exploded structure of the radiator.

[0041] Figure 5 yes Figure 4 A schematic diagram of one embodiment of the air intake side of the radiator;

[0042] Figure 6 yes Figure 4 A schematic diagram of the structure of one embodiment of the upper positioning component;

[0043] Figure 7 yes Figure 4 A schematic diagram of the structure of one embodiment of the lower positioning component;

[0044] Figure 8 yes Figure 4 A schematic diagram of the structure of one embodiment of the locking piece;

[0045] Figure 9 yes Figure 4 A schematic diagram of one embodiment of the positioning pin in the diagram;

[0046] Figure 10 yes Figure 4 A schematic diagram of one embodiment of the dustproof netting in the middle;

[0047] Figure 11 yes Figure 4 A schematic diagram of the structure of one embodiment of the dustproof netting in the middle;

[0048] Figure 12 Is Figure 3 The diagram shows the structure of the radiator after other components have been added.

[0049] In the diagram, 10 is the radiator; 11 is the air intake; 12 is the upper edge plate; 13 is the lower edge plate; 14 is the mounting hole; 20 is the dust filter; 21 is the frame; 22 is the fittings; 23 is the fittings; 30 is other components; 31 is the left mounting piece; 32 is the right mounting piece; 100 is the upper dust filter; 110 is the upper frame; 120 is the lower frame; 121 is the through hole; 130 is the left frame; 140 is the right frame. 150. Upper positioning component; 200. Lower dustproof net; 210. Upper frame; 211. Through hole; 212. Clearance area; 220. Lower frame; 230. Left frame; 240. Right frame; 250. Lower positioning component; 300. Crossbeam; 310. Locking plate; 311. Root; 312. Head; 313. Pin hole; 320. Positioning pin; 321. Pin rod; 322. Pull ring; 330. Fastener. Detailed Implementation

[0050] 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 a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0051] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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 or operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or internal communication within components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. In the description of the embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0053] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0054] This embodiment is designed specifically for equipment in construction machinery that requires the installation of dustproof nets, and features a special design for the dustproof net installation structure to make the installation and removal of dustproof nets on these devices more convenient.

[0055] The following section uses a radiator, which is commonly used in construction machinery, as an example to explain in detail the specific composition and working principle of the dustproof net installation structure in this embodiment.

[0056] Combination Figure 3 , Figure 4 As shown, the dustproof net installation structure of this embodiment mainly includes components such as an upper dustproof net 100, a lower dustproof net 200, a crossbeam 300, an upper positioning component 150 for installing the upper dustproof net 100, a lower positioning component 250 for installing the lower dustproof net 200, and a locking piece 310 for locking the upper dustproof net 100 and the lower dustproof net 200.

[0057] The crossbeam 300 is installed on the air intake side of the radiator 10, dividing the air intake 11 of the radiator into upper and lower parts. An upper dust filter 100 is installed on the upper part of the air intake 11, and a lower dust filter 200 is installed on the lower part of the air intake 11. The combined upper and lower dust filters 100 cover the entire air intake 11 of the radiator 10. Figure 3 As shown, this is to prevent dust, mud, insects and other debris in the air from being sucked into the radiator 10 and affecting the normal operation of the radiator 10.

[0058] The specific installation position of the crossbeam 300 on the air intake side of the radiator 10, as well as the specific dimensions of the upper dust filter 100 and the lower dust filter 200, can be adaptively adjusted according to the specific installation position and dimensions of other components 30 on the air intake side of the radiator 10, such as... Figure 12 As shown.

[0059] Specifically, if other components 30 are installed at a slightly higher position on the air intake side of the radiator 10, such as... Figure 12 As shown, the crossbeam 300 is installed below the other components 30. Adjust the height of the lower dustproof net 200 so that it completely exposes the other components 30. Adjust the height of the upper dustproof net 100 so that it covers the area of ​​the air intake 11 above the crossbeam 300.

[0060] For radiators 10 with a relatively wide air intake 11, since most other components 30 are fixed by mounting left and right mounting pieces 31 and 32 on the left and right sides of the air intake 10 respectively, this results in the air intake 11 being blocked at the left, right, and front positions of the other components 30. The upper dustproof net 100 cannot be inserted or removed from these three directions; it can only be removed from above and below. However, radiators 10 are typically quite tall, and removing the upper dustproof net 100 from the top requires workers to climb, which is inconvenient. Therefore, the ideal solution is to remove the upper dustproof net 100 from below the other components 30. Even if the lower part of the air intake 11 is taller than its upper part, the upper dustproof net 100, even if designed as a single piece, can still be easily removed from below the other components 30. However, if the lower part of the air intake 11 is shorter than its upper part, it becomes difficult to remove the one-piece upper dustproof net 100 from below the other components 30. To address this, this embodiment designs the upper dustproof net 100 as a multi-piece structure, such as... Figure 3 The structure shown is a two-piece design, with the multiple upper dustproof nets 100 arranged in a straight line along the length of the crossbeam 300, that is, arranged sequentially from the left side to the right side of the air intake 11. By reducing the size of each individual upper dustproof net 100, it is easier to remove the upper dustproof nets 100 one by one from behind the other components 30.

[0061] In some embodiments, each dustproof net 100 may be configured to have the same size to improve the versatility of a single dustproof net 100.

[0062] Conversely, if other components 30 are installed slightly below the air intake side of the radiator 10, the crossbeam 300 is installed above the other components 30. Adjust the height of the upper dust screen 100 so that it completely exposes the other components 30. Adjust the height of the lower dust screen 200 so that it covers the air intake 11 area below the crossbeam 300.

[0063] Similarly, for a radiator 10 with a large air intake 11, the lower dust filter 200 can be designed as a multi-piece structure and arranged in a line along the length of the crossbeam 300 to facilitate the removal of the lower dust filter 200 piece by piece from behind other components 30.

[0064] Similarly, each piece of lower dustproof net 200 is configured to be of equal size to improve the versatility of a single piece of lower dustproof net 200.

[0065] In summary, the sizes of the upper dust filter 100 and the lower dust filter 200 can be configured according to the installation position and size of the other components 30 on the air intake side of the radiator 10, so that the other components 30 can only cover one of the upper dust filter 100 and the lower dust filter 200. At the same time, the upper dust filter 100 or the lower dust filter 200 that is covered by the other components 30 can be configured as a multi-piece structure to facilitate the removal of the dust filter 100 / 200 from the rear of the other components 30.

[0066] In some embodiments, the crossbeam 300 can be designed as a long strip, such as... Figure 5 As shown, the left and right ends of the crossbeam 300 are fixed to the left and right side frames of the radiator 10 air intake side using fasteners such as bolts 330, so as to divide the air intake 11 of the radiator 10 into upper and lower parts.

[0067] In order to install the upper dust filter 100 and the lower dust filter 200 onto the air intake side of the radiator 10 and to simplify the installation and removal of the upper dust filter 100 and the lower dust filter 200 on the radiator 10, this embodiment designs an upper positioning member 150 for the upper dust filter 100 and a lower positioning member 250 for the lower dust filter 200. At the same time, a locking piece 310 is configured on the crossbeam 300 to realize the installation and locking of the upper dust filter 100 and the lower dust filter 200.

[0068] Specifically, the dustproof netting 100 can be designed in a square shape, such as... Figure 10 As shown, it has an upper frame 110, a lower frame 120, a left frame 130, and a right frame 140. The upper positioning member 150 is installed above the radiator air intake 11, specifically on the upper edge plate 12 on the air intake side of the radiator 10, to position the upper frame 110 of the upper dust filter 100.

[0069] In some embodiments, the upper positioning member 150 can be designed as a clamping structure, which clamps the upper frame 110 of the upper dustproof net 100 to perform upper positioning of the upper dustproof net 100.

[0070] like Figure 6 As shown, two mirror-shaped plates can be provided in the upper positioning member 150. Each irregularly shaped plate includes an upper vertical plate 151, a lower vertical plate 152, and an intermediate horizontal plate 153 connecting the upper vertical plate 151 and the lower vertical plate 152. The intermediate horizontal plate 153 connects the bottom of the upper vertical plate 151 and the top of the lower vertical plate 152.

[0071] Based on the thickness of the lower edge plate 12 of the radiator, the distance between the two upper vertical plates 151 is configured, and the upper edge plate 12 is clamped by the two upper vertical plates 151, or fasteners are further installed to install the upper positioning member 150 on the radiator 10 and above the air intake 11.

[0072] Based on the thickness of the upper frame 110 of the upper dustproof net 100, the distance between the two lower vertical plates 152 is configured, and the two lower vertical plates 152, together with the two middle horizontal plates 153, form a U-shaped groove for the upper frame 110 of the upper dustproof net 100 to be inserted, so as to achieve upper positioning of the upper dustproof net 100.

[0073] A through hole 121 is made on the lower frame 120 of the upper dustproof mesh 100, such as... Figure 10 As shown, the locking piece 310 on the crossbeam 300 is inserted to lock the upper dustproof net 100 in place.

[0074] Similarly, the lower dustproof net 200 can also be designed in a square shape, such as... Figure 11 As shown, it has an upper frame 210, a lower frame 220, a left frame 230, and a right frame 240. The lower positioning member 250 is installed below the radiator air intake 11, specifically on the lower edge plate 13 on the air intake side of the radiator 10, to position the lower frame 220 of the lower dust filter 200.

[0075] In some embodiments, the lower positioning member 250 can be designed as a support structure to support the lower frame 220 of the lower dustproof net 200, thereby positioning the lower dustproof net 200 downwards.

[0076] like Figure 7 As shown, the lower positioning member 250 can be designed in an L-shape, including a vertical plate 251 and a horizontal plate 252. The free end of the horizontal plate 252 is installed on the outside of the lower edge plate 13, forming a U-shaped groove with the lower edge plate 13, into which the lower frame 220 of the lower dustproof net 200 is inserted to achieve lower positioning of the lower dustproof net 200.

[0077] A through hole 211 is formed in the upper frame 210 of the lower dust-proof net 200, as shown in Figure 11 so that the locking piece 310 on the cross beam 300 can be inserted to achieve upper locking of the lower dust-proof net 200.

[0078] In this embodiment, an assembly method of positioning on one side and locking on the other side is designed for the upper dust-proof net 100 and the lower dust-proof net 200, which can further simplify the disassembly and assembly operations of the upper dust-proof net 100 and the lower dust-proof net 200 and speed up the disassembly and assembly speed of the upper dust-proof net 100 and the lower dust-proof net 200.

[0079] In some cases, it may be necessary to form mounting holes 14 in the upper edge plate 12 and / or the lower edge plate 13 of the radiator 10 for the installation or passage of other components, as shown in Figure 5 If the installation of the upper dust-proof net 100 or the lower dust-proof net 200 causes partial occlusion of these mounting holes 14, an avoidance area 212 can be formed on the upper frame 110 of the upper dust-proof net 100 or the lower frame 220 of the lower dust-proof net 200, as shown in combination with Figure 3 、 Figure 11 to avoid affecting the normal assembly of other components on the radiator 10.

[0080] In order to firmly lock the upper dust-proof net 100 and the lower dust-proof net 200 on the cross beam 300, the through holes 121 and 211 formed in the upper dust-proof net 100 and the lower dust-proof net 200 are designed as strip holes in this embodiment, and the locking piece 310 installed on the cross beam 300 is designed as flat, as shown in Figure 8 The locking piece 310 is configured to have a root 311 and a head 312 with opposite positions in its length direction. The root 311 is installed on the cross beam 300, and the width of the root 311 is adapted to the length of the strip through holes 121 and 211, and the thickness of the root 311 is adapted to the width of the strip through holes 121 and 211. After the locking piece 310 is inserted into the strip through holes 121 and 211, the problem of up, down, left, and right shaking of the upper dust-proof net 100 and the lower dust-proof net 200 relative to the cross beam 300 can be avoided.

[0081] The locking piece 310 is configured to be perpendicular to the cross beam 300 in its length direction, forming a head 312 away from the cross beam 300. The width of the head 312 is configured to be smaller than the width of the root 311. For example, the locking piece 310 is designed as a "convex" shape to facilitate the insertion of the locking piece 310 into the strip through holes 121 and 211.

[0082] A pin hole 313 is formed on the locking plate 310. The pin hole 312 is located near the head 312 of the locking plate 310, and its position can be determined based on the overlapping thickness of the lower edge 120 of the upper dustproof net 100 and the upper edge 210 of the lower dustproof net 200. That is, the distance between the pin hole 313 and the crossbeam 300 is adapted to the overlapping thickness of the lower edge 120 of the upper dustproof net 100 and the upper edge 210 of the lower dustproof net 200, so as to ensure that after the positioning pin 320 is inserted into the pin hole 313, the locking plate 310 is engaged. Figure 3 , Figure 9 As shown, the upper dustproof net 100 and the lower dustproof net 200 will not wobble back and forth.

[0083] In some embodiments, the positioning pin 320 may include a pin 321 and a pull ring 322, such as Figure 9 As shown. Inserting the pin 321 into the pin hole 313 locks the upper dustproof net 100 and the lower dustproof net 200. The upper lifting ring 322 allows the pin 321 to be easily pulled out of the pin hole 313 to release the locked state of the upper dustproof net 100 and the lower dustproof net 200.

[0084] Of course, in other embodiments, the locking plate 310 can also be designed as a rotary locking plate, and the through holes 121 and 211 on the upper dustproof net 100 and the lower dustproof net 200 can still be designed as strip holes. After rotating the locking plate 310 to a position parallel to the length direction of the strip through holes 121 and 211 of the upper dustproof net 100 and the lower dustproof net 200, the locking plate 310 is then inserted into the strip through holes 121 and 211 of the upper dustproof net 100 and the lower dustproof net 200; the locking plate 310 is rotated until it is perpendicular to the length direction of the strip through holes 121 and 211, at which point the upper dustproof net 100 and the lower dustproof net 200 can be securely locked onto the crossbeam 300.

[0085] In this embodiment, the lower frame 120 of the upper dustproof net 100 and the upper frame 210 of the lower dustproof net 200 are stacked and assembled on the crossbeam 300, and share the same locking plate 310. This reduces the number of operation points and simplifies the disassembly and assembly operations for operators.

[0086] In addition, for the dustproof nets (upper dustproof net 100 or lower dustproof net 200) that completely expose the other components 30, the overlapping edges (e.g., the lower edge 120 of the upper dustproof net 100 or the upper edge 210 of the lower dustproof net 200) are configured to be located on the outside, so that the dustproof net can be removed first, thereby providing space and convenience for the disassembly operation of the covered dustproof net.

[0087] Industrial applicability

[0088] Taking the application scenario where other components 30 are installed on the upper half of the air intake side of the radiator 10 as an example, the disassembly and assembly process of the dust filter is specifically explained.

[0089] like Figure 12 As shown, when other components 30 installed on the intake side of the radiator 10 block the space in front of the upper dust filter 100 and on the left and right sides, if it is necessary to remove the dust filter for cleaning, the positioning pin 320 can be removed first to release the locking state of the upper dust filter 100 and the lower dust filter 200 on the crossbeam 300; then, the upper frame 210 of the lower dust filter 200 is pulled outward to disengage the locking piece 310 from the strip through hole 211 on the upper frame 210 of the lower dust filter 200, forming a free edge; then, the lower dust filter 200 is lifted up to remove the lower frame 220 of the lower dust filter 200 from the lower positioning member 250, thereby removing the lower dust filter 200 from the radiator 10.

[0090] Since the lower dustproof net 200, the locking plate 310, and the positioning pin 320 are all fully exposed and not obstructed by the other components 30, the unlocking operation will not encounter any obstacles and can be completed quickly.

[0091] In addition, since the upper frame 210 of the lower dustproof net 200 overlaps the outer side of the lower frame 120 of the upper dustproof net 100, the disassembly operation of the lower dustproof net 200 is not hindered by the upper dustproof net 100 and can be completed smoothly.

[0092] After removing the lower dust filter 200, pull the lower frame 120 of one of the upper dust filters 100 outwards, so that the locking piece 310 disengages from the strip through hole 121 on the lower frame 120 of the upper dust filter 100, forming a free edge; then, pull down the upper dust filter 100 and remove the upper frame 110 of the upper dust filter 100 from the upper positioning member 150, thereby removing the upper dust filter 100 from the radiator 10.

[0093] Because the height of the upper dustproof net 100 is reduced and it is divided into multiple pieces with a reduced width, each piece of the upper dustproof net 100 is not large and can usually be pulled down and removed directly. If there is limited space below, less than the height of the upper dustproof net 100, each piece of the upper dustproof net 100 can be pulled down and detached from the upper positioning member 150, then rotated at a certain angle to remove it from behind the other components 30.

[0094] The dustproof nets 100 on each of the other pieces can also be removed from the rear of the other components 30 in the same way as described above, thus completing the disassembly operation of the entire dustproof net.

[0095] After the dust filter is cleaned, when it needs to be reinstalled on the air intake side of the radiator 10, first install the upper dust filter 100, extend the upper dust filter 100 behind the other components 30, adjust the angle of the upper dust filter 100, and insert its upper frame 110 into the upper positioning member 150; then, insert the strip through hole 121 on its lower frame 120 into the locking piece 310 on the crossbeam 300 to complete the positioning of the upper dust filter 100 on the radiator 10.

[0096] After all the upper dust filters 100 are positioned on the radiator 10, the lower dust filter 200 is installed. The specific process is as follows: First, insert the lower edge 220 of the lower dust filter 200 into the lower positioning piece 250; then, insert the strip-shaped through hole 211 on the upper edge 210 of the lower dust filter 200 into the locking piece 310 on the crossbeam 300, so that the upper edge 210 of the lower dust filter 200 overlaps the outside of the lower edge 120 of the upper dust filter 100, thus completing the positioning of the lower dust filter 200 on the radiator 10.

[0097] Next, the positioning pin 320 is inserted into the pin hole 313 on the locking plate 310 to lock the lower frame 120 of the upper dustproof net 100 and the upper frame 210 of the lower dustproof net 200 onto the crossbeam 300. This completes the installation of the entire dustproof net.

[0098] The dust filter in this embodiment is easy and quick to install and remove, which can significantly shorten the maintenance time of the radiator and reduce the maintenance cost of the radiator.

[0099] Of course, the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; although the 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. An installation structure for a dustproof net for engineering machinery, characterized in that, The application relates to an installation structure of a dust screen for an engineering machine. The installation structure comprises: a crossbeam installed on the air inlet side of a radiator in the engineering machine, the crossbeam dividing the air inlet into upper and lower parts, and a locking piece installed on the crossbeam; an upper positioning member installed on the radiator and located above the air inlet; a lower positioning member installed on the radiator and located below the air inlet; an upper dust screen having an upper frame and a lower frame, the upper frame of the upper dust screen being assembled to the upper positioning member, and a through hole being formed in the lower frame of the upper dust screen and the locking piece being inserted into the through hole; and a lower dust screen having an upper frame and a lower frame, the lower frame of the lower dust screen being assembled to the lower positioning member, and a through hole being formed in the upper frame of the lower dust screen and the locking piece being inserted into the through hole. A pin hole is formed in the locking piece, and a positioning pin is installed in the pin hole, so that the upper dust screen and the lower dust screen are locked on the crossbeam through cooperation of the locking piece and the positioning pin.

3. The installation structure of the dust screen for the engineering machine according to claim 2, wherein the through hole is a strip hole; the locking piece is flat, has opposite root and head portions in the length direction, the root portion is installed on the crossbeam, and the width and the thickness of the root portion are matched with the length and the width of the strip hole respectively; and the head portion is away from the crossbeam, and the width of the head portion is smaller than that of the root portion.

4. The installation structure of the dust screen for the engineering machine according to claim 1, wherein the through hole is a strip hole; and the locking piece is a rotary locking piece, and when the locking piece is rotated to a position perpendicular to the length direction of the strip hole, the upper dust screen and the lower dust screen are locked on the crossbeam. The upper positioning member comprises two mirror-imaged special-shaped plates, the special-shaped plates comprise upper vertical plates, lower vertical plates and intermediate horizontal plates connected between the upper vertical plates and the lower vertical plates, wherein the two upper vertical plates are installed on the radiator in a manner of clamping the upper edge plate of the air inlet side of the radiator; and the two lower vertical plates form a U-shaped groove with the intermediate horizontal plates, and the upper frame of the upper dust screen is inserted into the U-shaped groove for positioning.

2. The dust screen mounting structure for a construction machine according to claim 1, characterized by The lower positioning member is L-shaped, the end of the horizontal side of the lower positioning member is installed on the lower edge plate of the air inlet side of the radiator, and the lower positioning member and the lower edge plate form a U-shaped groove, and the lower frame of the lower dust screen is inserted into the U-shaped groove for positioning. The installation structure of the dust screen for the engineering machine according to any one of claims 1 to 6 is installed on the air inlet side of the radiator.

8. The engineering machine according to claim 7, wherein other components are also installed on the air inlet side of the radiator, and the installation space of the dust screen is limited between the radiator and the other components; the sizes of the upper dust screen and the lower dust screen are configured according to the installation position and the size of the other components, so that the other components only shield one of the upper dust screen and the lower dust screen, and the lower frame of the upper dust screen and the upper frame of the lower dust screen are completely exposed to the outside of the other components. The lower frame of the upper dust screen and the upper frame of the lower dust screen are assembled on the crossbeam in a superposed manner, and the dust screen exposed to the outside of the other components is configured with the frame superposed on the outside. ​ ​ ​ ​ 5. The dust screen mounting structure for a construction machine according to any one of claims 1 to 4, characterized by, ​ ​ ​ 6. The dust screen mounting structure for a construction machine according to any one of claims 1 to 4, characterized by ​ 7. A working machine comprising a radiator, characterised in that ​ ​ ​ ​ 9. A working machine according to claim 8, characterised in that, ​ 10. A working machine according to claim 8 or 9, characterised in that, The dustproof screen between the other components and the air suction port of the heat sink comprises a plurality of pieces arranged in a line along the length direction of the cross beam.

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