Openable rear shield for micro-excavation

Abstract

A door-openable rear protective cover of a micro-excavator comprises a machine cover, a maintenance opening is formed in the middle of the machine cover, a rear door is arranged at the maintenance opening in a hinged mode, a ventilation opening is formed in the middle of the rear door, a heat dissipation device is detachably arranged at the ventilation opening, and the heat dissipation device is located at the position, facing the interior of the machine cover, of the rear door. By means of the structure, the tedious process that the rear protective cover needs to be disassembled and assembled in the overhauling process is prevented, the overhauling time and manpower are greatly shortened, the rear door of the protective cover can be opened through the arc-shaped hinge, the opening degree of 150 degrees can be achieved, the rear door can be conveniently opened for overhauling, and a wide enough space is provided after the rear door is opened so that operation can be conveniently conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator equipment, in particular to a rear guard cover of a micro excavator with an openable door. Background Art

[0002] During excavator maintenance, the rear guard must be removed, making disassembly and installation cumbersome and time-consuming. Typically, the stamped rear guard of an excavator is a single panel bolted to the rear bracket. To inspect internal components, the entire rear guard must be removed, making maintenance difficult and inconvenient. Furthermore, ventilation holes are typically provided on the rear guard to dissipate heat from the excavator, but these typically utilize passive cooling, resulting in limited effectiveness. Utility Model Content

[0003] One advantage of the present invention is that it provides a micro-excavated openable rear guard, which avoids the tedious process of disassembling and assembling the rear guard during maintenance, greatly shortening the maintenance time and manpower. The arc hinge allows the rear door of the guard not only to be opened, but also to open 150 degrees, making it convenient to open the rear door for maintenance, and also providing a sufficiently spacious space for operation after opening.

[0004] One advantage of the present invention is that it provides a slightly excavated openable rear door guard. The arc-shaped hinge is made of steel and is firmly connected to the rear door. It has a strong enough load-bearing capacity to make the rear door more stable after opening and will not sag due to the force of the rear door's gravity.

[0005] One advantage of the present invention is that it provides an openable rear guard cover for a micro excavator. A fan is provided on the rear door, which can actively dissipate heat and draw the heat inside the excavator to the outside of the fuselage. At the same time, since the fan is installed on the rear door, the three fans are set at a certain angle according to the curvature of the rear cover, which occupies a small space inside the excavator. At the same time, after the rear door is opened, the fan-based heat dissipation mechanism will not block the internal structure of the excavator and will not hinder maintenance.

[0006] One advantage of the present invention is that it provides a rear guard with a slightly excavated openable door, and a lock is provided on the rear door to facilitate locking and opening the rear door.

[0007] In order to achieve at least one of the above advantages of the present invention, the present invention provides a micro-excavated openable rear guard cover, including a hood, a maintenance port is provided in the middle of the hood, a rear door is hingedly provided at the maintenance port, a vent is provided in the middle of the rear door, a heat dissipation device is detachably provided at the vent, and the heat dissipation device is located at the position of the rear door facing the interior of the hood.

[0008] In another aspect of the present invention, a breathable net is installed at the vent, and a plurality of breathable holes are provided on the breathable net.

[0009] In another aspect of the present invention, the heat dissipation device comprises three fans, and three sets of buckles are fixedly installed on the inner side of the rear door. The fans are connected to the rear door through the buckles, and the airflow direction of the fans is from inside to outside.

[0010] Another aspect of the present invention further comprises an arc-shaped hinge and a fixing plate, wherein the fixing plate is mounted on one side of the rear door, one end of the arc-shaped hinge is mounted on the fixing plate, and the other end of the arc-shaped hinge is hinged to the hood.

[0011] In another aspect of the present invention, the middle portion of the arc hinge is an arc plate structure, one end of the arc hinge is bent forward and connected to the fixed plate, and the other end of the arc hinge is bent forward and hinged to the hood.

[0012] In another aspect of the present invention, a sealing ring is provided between the rear door and the edge of the maintenance opening for sealing.

[0013] On the other hand, a lock is provided on the rear door, which includes a lock seat, a lock cylinder, a handle and a lock head. The lock seat is installed at a position of the rear door near the hood, and the lock cylinder is rotatably arranged in the middle of the lock seat. A handle is provided at the end of the lock cylinder facing outward, and a lock head is provided at the end of the lock head facing inward. When the lock head is rotated to a vertical position, its lower end is stuck on the inside of the hood to lock the rear door. When the lock head is rotated to a horizontal position, its lower end is disengaged from the hood and the locked state is released.

[0014] In another aspect of the present invention, the air-permeable net is connected to the rear door via bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a rear view structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model in a closed state;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model in an open state;

[0018] In the attached figure: 1. Hood, 2. Rear door, 3. Breathable net, 4. Lock, 5. Fan, 6. Buckle, 7. Fixing plate, 8. Arc hinge. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following will be combined with the appendix of the present invention. Figure 1 ~Attached Figure 3 , the utility model is described in more detail.

[0020] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of the specification, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] The utility model provides a micro-excavated openable rear guard cover, including a hood 1, a maintenance port is provided in the middle of the hood 1, a rear door 2 is hingedly provided at the maintenance port, a vent is provided in the middle of the rear door 2, a heat dissipation device is detachably provided at the vent, and the heat dissipation device is located at a position where the rear door 2 faces the inside of the hood 1; a breathable net 3 is installed at the vent, and a plurality of ventilation holes are provided on the breathable net 3; the heat dissipation device is three fans 5, three groups of buckles 6 are fixedly installed on the inner side of the rear door 2, the fan 5 is connected to the rear door 2 through the buckles 6, and the airflow direction of the fan 5 is from inside to outside; it also includes an arc hinge 8 and a fixing plate 7, the fixing plate 7 is installed on one side of the rear door 2, one end of the arc hinge 8 is installed on the fixing plate 7, and the other end of the arc hinge 8 is connected to the hood 1 hinged; the middle part of the arc hinge 8 is an arc plate structure, one end of the arc hinge 8 is bent forward and connected to the fixed plate 7, and the other end of the arc hinge 8 is bent forward and hinged to the hood 1; a sealing ring for sealing is provided between the rear door 2 and the edge of the maintenance opening; a lock 4 is provided on the rear door 2, and the lock 4 includes a lock seat, a lock cylinder, a handle and a lock head. The lock seat is installed at a position of the rear door 2 near the hood 1, and the lock cylinder is rotatably arranged in the middle of the lock seat. A handle is provided at the end of the lock cylinder facing outward, and a lock head is provided at the end of the lock head facing inward. When the lock head is rotated to a vertical position, its lower end clamps the inner side of the hood 1 to lock the rear door 2. When the lock head is rotated to a horizontal position, its lower end is separated from the hood 1 and the locked state is released; the air permeable net 3 is connected to the rear door 2 by bolts.

[0024] The first embodiment of the present utility model is as follows:

[0025] The openable rear guard cover of the micro-excavator includes a hood 1, a maintenance port is provided in the middle of the hood 1, and a rear door 2 is hingedly provided at the maintenance port. The rear door 2 can be opened in a hinged manner, which avoids the tedious process of disassembling and assembling the rear guard cover during maintenance, greatly shortening the maintenance time and manpower. A vent is provided in the middle of the rear door 2, and a heat dissipation device is detachably provided at the vent. The heat dissipation device is located at a position where the rear door 2 faces the inside of the hood 1, and can actively dissipate heat to draw the heat inside the excavator to the outside of the fuselage. A breathable net 3 is installed at the vent, and the breathable net 3 is connected to the rear door 2 by bolts, which is convenient for disassembly and replacement. A number of vents are provided on the breathable net 3 to facilitate the internal hot air to be drawn to the outside of the hood 1 by the fan 5, thereby realizing active heat dissipation, effectively assisting the heat dissipation of the entire machine, and improving the service life of the excavator.

[0026] At the same time, since the fan 5 is installed on the rear door 2, the three fans 5 are set at a certain angle according to the curvature of the rear hood 1, and occupy a small space inside the excavator. At the same time, after opening the rear door 2, the heat dissipation mechanism mainly composed of the fan 5 will not block the internal structure of the excavator and will not hinder maintenance.

[0027] The fan 5 is connected to the rear door 2 via a buckle 6, which is convenient for cleaning, disassembly and maintenance, thereby improving the convenience of use.

[0028] The fixing plate 7 is installed on one side of the rear door 2, which can cushion the arc hinge 8 and ensure the rotation angle of the arc hinge 8, thereby ensuring the opening degree of the rear door 2. One end of the arc hinge 8 is installed on the fixing plate 7, and the other end of the arc hinge 8 is hinged to the hood 1. The middle part of the arc hinge 8 is an arc plate structure. One end of the arc hinge 8 is bent forward and connected to the fixing plate 7, and the other end of the arc hinge 8 is bent forward and hinged to the hood 1. Figure 3 As shown, after the rear door 2 is opened, its other end will rest against the edge of the hood 1. At this time, the edge of the rear door 2 is close to but not in contact with the outer surface of the hood 1, which ensures the opening degree without causing collision between the rear door 2 and the hood 1, thereby preventing the paint from falling off due to collision on the surface of the hood 1, thereby affecting the appearance. After the rear door 2 is closed, the arc hinge 8 takes up little space.

[0029] The arc hinge 8 allows the rear door 2 of the shield to not only be opened, but also to achieve an opening angle of 150 degrees, making it convenient to open the rear door 2 for inspection and maintenance, and also provides a sufficiently spacious space for convenient operation after opening.

[0030] A sealing ring is provided between the rear door 2 and the edge of the maintenance port to prevent collisions and reduce noise.

[0031] A lock 4 is provided on the rear door 2, which includes a lock seat, a lock cylinder, a handle and a lock head. The lock seat is installed at a position of the rear door 2 near the hood 1, and the lock cylinder is rotatably arranged in the middle of the lock seat. A handle is provided at the end of the lock cylinder facing outward, and a lock head is provided at the end of the lock head facing inward. When the lock head is rotated to a vertical position, its lower end is stuck on the inner side of the hood 1 to lock the rear door 2. When the lock head is rotated to a horizontal position, its lower end is disengaged from the hood 1 and the locked state is released, making it convenient to lock and open the rear door 2.

[0032] It should be noted that the terms "first, second and third" in the present invention are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0033] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles herein.

Claims

1. A micro-excavated rear guard with an openable door, including a hood, characterized in that: A maintenance port is provided in the middle of the hood, a rear door is hingedly provided at the maintenance port, a vent is provided in the middle of the rear door, a heat dissipation device is detachably provided at the vent, and the heat dissipation device is located at a position where the rear door faces the inside of the hood.

2. The rear guard cover of the mini excavator with an openable door according to claim 1, characterized in that: A breathable net is installed at the vent, and a plurality of vent holes are provided on the breathable net.

3. The rear guard cover of the mini excavator with an openable door according to claim 2, characterized in that: The heat dissipation device is three fans. Three groups of buckles are fixedly installed on the inner side of the rear door. The fans are connected to the rear door through the buckles. The airflow direction of the fans is from inside to outside.

4. The rear guard cover of the mini excavator with an openable door according to claim 1, characterized in that: The utility model also comprises an arc-shaped hinge and a fixing plate, wherein the fixing plate is installed on one side of the rear door, one end of the arc-shaped hinge is installed on the fixing plate, and the other end of the arc-shaped hinge is hinged to the hood.

5. The rear guard cover of the mini excavator with an openable door according to claim 4, characterized in that: The middle portion of the arc hinge is an arc plate structure, one end of the arc hinge is bent forward and connected to the fixed plate, and the other end of the arc hinge is bent forward and hinged to the hood.

6. The rear guard cover of the mini excavator with an openable door according to claim 1, characterized in that: A sealing ring is provided between the rear door and the edge of the maintenance opening for sealing.

7. The rear guard cover of the mini excavator with an openable door according to claim 1, characterized in that: The rear door is provided with a lock, which includes a lock seat, a lock core, a handle and a lock head. The lock seat is installed at a position of the rear door near the hood, and the lock core is rotatably arranged in the middle of the lock seat. The end of the lock core facing outward is provided with a handle, and the end of the lock head facing inward is provided with a lock head. When the lock head is rotated to a vertical position, its lower end is stuck on the inside of the hood to lock the rear door. When the lock head is rotated to a horizontal position, its lower end is disengaged from the hood and the locked state is released.

8. The rear guard cover of the mini excavator with an openable door according to claim 2, characterized in that: The air-permeable net is connected to the rear door via bolts.

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