CN111648433B - Aircraft bonnet protection component and engineering machine - Google Patents
Aircraft bonnet protection component and engineering machine Download PDFInfo
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- CN111648433B CN111648433B CN202010559630.8A CN202010559630A CN111648433B CN 111648433 B CN111648433 B CN 111648433B CN 202010559630 A CN202010559630 A CN 202010559630A CN 111648433 B CN111648433 B CN 111648433B
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- hood
- guard
- guide
- closed state
- support
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
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- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention discloses a hood protection component and engineering machinery, wherein the hood protection comprises: a hood; the protective frame is arranged above the hood and comprises a first protective part arranged on the first side of the hood and a second protective part arranged on the second side of the hood; a top guard; a support guide comprising at least two supports on the first and second guard portions, respectively, configured to: in the closed state, supporting the first end and the second end of the top guard by at least two supports, respectively; a first guide portion provided on a third side of the hood, the first guide portion including a guide surface extending to a lower side of the hood, the guide surface facing the top guard in a closed state, the first guide portion being configured to: after the top protection piece moves relative to the protection frame to the third end to contact the guide surface, the top protection piece and the support guide part limit the moving path of the top protection piece; and a bottom support part arranged on the third side of the hood, positioned on the lower side of the protective frame and configured to limit the stroke of the third end sliding downwards along the guide surface.
Description
Technical Field
The invention relates to the field of hood protection, in particular to a hood protection assembly and engineering machinery.
Background
The engine, the cooling device and other parts are installed in the hood, and the hood protection component is required to be arranged on the machine which works in a complex working environment, for example, branches and the like can fall off frequently during forestry operation of excavators which often perform forestry work, and protection is required to be arranged on the hood to ensure the strength of the hood. In daily operations, it is also often necessary to perform maintenance, repair, etc. of the hood and the components inside the hood, and therefore it is often necessary to open the hood guard assembly. The hood protection component in the prior art is heavy in protection structure and not easy to open.
Disclosure of Invention
The invention aims to provide a hood protection assembly which is convenient, simple and safe to open. The engineering machine applying the top protection piece is also provided.
A first aspect of the present invention discloses a hood guard assembly having a closed state and an open state, comprising:
a hood;
a protection frame disposed above the hood, including a first protection portion disposed on a first side of the hood and a second protection portion disposed on a second side of the hood opposite to the first side;
a top guard movably disposed on the guard frame to switch between a closed state and an open state, including first and second opposing ends and third and fourth opposing ends;
a support guide comprising at least two supports on the first and second guard portions, respectively, configured to: in the closed state, supporting first and second ends of the top guard by the at least two supports, respectively, and supporting the top guard and restricting an active path of the top guard when the top guard is active relative to the guard frame;
a first guide portion provided on a third side of the hood, the first guide portion including a guide surface extending toward a lower side of the hood, the guide surface facing the top guard in the closed state, the first guide portion being configured to: after the top protection piece moves relative to the protection frame until the third end contacts the guide surface, limiting the moving path of the top protection piece together with the supporting guide part, and enabling the third end to slide along the guide surface while the top protection piece is supported on the supporting guide part;
and a bottom support part provided at a third side of the hood and located at a lower side of the protection frame, configured to limit a stroke of the third end sliding downward along the guide surface, and to support the top protection member in the opened state.
In some embodiments, the protection frame further includes a second guide portion and a connecting member, a first end of the connecting member is hinged to the top protection member, a second end of the connecting member is rotatably and slidably connected to the second guide portion, the second guide portion is provided with a position-limiting portion for limiting the sliding of the second end of the connecting member, and in the open state, the second end of the connecting member cooperates with the position-limiting portion to maintain the top protection member in the open state.
In some embodiments, when the third end of the top guard contacts the bottom support during switching between the closed state and the open state, the top guard is configured to be disengaged from the support guide and turned over under support of the bottom support.
In some embodiments, the second guiding portion includes a sliding groove, the second end of the connecting member includes a sliding block engaged with the sliding groove, and the limiting portion includes a limiting groove connected with the sliding groove.
In some embodiments, the hood guard assembly further comprises a locking device configured to lock the top guard with the guard frame to maintain the top guard in the closed state.
In some embodiments, the support guide is configured to cause the top guard to tend to move toward the third side of the hood in the closed state.
In some embodiments, the support guide includes a pair of first pulleys provided on the first guard portion and the second guard portion, respectively, and a pair of second pulleys provided on the first guard portion and the second guard portion, respectively, and in the closed state, the overhead guard is configured such that a first end thereof is supported on the first pulleys and the second pulleys provided on the first guard portion, and a second end thereof is supported on the first pulleys and the second pulleys provided on the second guard portion.
In some embodiments, the first pulley is distal from the second side of the hood relative to the second pulley, and the first pulley has a greater height than the second pulley.
In some embodiments, the third end of the top guard is provided with a third pulley, and the third end of the top guard is in contact with the guide surface through the third pulley.
The invention discloses engineering machinery comprising the hood protection assembly in a second aspect.
In some embodiments, the work machine is an excavator, the excavator further comprises a counterweight connected to the hood, and the bottom support portion comprises a pad disposed on a top of the counterweight.
According to the hood protection assembly provided by the invention, by arranging the support guide part, the first guide part, the bottom support part and other parts, when the hood protection assembly is opened, the top protection part moves on the support guide part, and then the top protection part rotates to the bottom support part to be opened under the assistance of gravity between the first guide part and the support guide part, so that the hood protection assembly can be opened conveniently, easily and safely.
The engineering machinery applying the hood protection component has corresponding beneficial effects.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of a hood guard assembly according to an embodiment of the present invention;
FIG. 2 is a partial schematic structural view of the hood guard assembly shown in FIG. 1 in an open position;
FIG. 3 is a partial schematic structural view of the hood guard assembly shown in FIG. 1;
FIG. 4 is a partial schematic structural view of the hood guard assembly shown in FIG. 1;
fig. 5 is a partial schematic structural view of the hood guard assembly shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 5, the hood guard assembly of the present embodiment has a closed state and an open state, and includes a hood 100, a guard frame, a top guard 2, a support guide 3, a first guide 4, and a bottom support 5.
The guard frame is disposed above the hood 100, and includes a first guard portion 11 provided on a first side of the hood 100 and a second guard portion 12 provided on a second side of the hood 100 opposite to the first side. The protective frame is erected above the hood 100, meaning that at least a portion of the height of the protective frame exceeds the hood 100. The first, second, third, and fourth sides of the hood 100 represent four orientations of the hood in the horizontal direction, the first and second sides of the hood 100 are opposite, the third and fourth sides of the hood 100 are opposite, and when one of the first, second, third, and fourth sides of the hood 100 is the front side of the hood 100, the other three sides are the rear, left, and right sides of the hood 100. The first protection part 11 and the second protection part 12 may be symmetrically or asymmetrically disposed, and may be various structures such as a plate body and a frame. The first guard 11 and the second guard 12 are guard rails symmetrically disposed as shown in fig. 1.
A top fender 2 is movably disposed on the fender frame to switch between a closed state and an open state, the top fender 2 including first and second opposed ends and third and fourth opposed ends. As shown in fig. 1, in the closed state, the top guard 2 is positioned above the hood 100, the top guard 2 can prevent a large object from hitting the hood 100, and the top guard 2 can protect the hood 100. As shown in fig. 2, after the top guard 2 is movably shifted with respect to the guard frame, the hood guard assembly is switched to the open state, and a person can operate the hood 100, for example, to repair the engine in the hood, perform maintenance on the hood, and the like.
The support guide 3 comprises at least two supports respectively located on the first and second guards 11 and 12, the support guide 3 being configured to: in the closed state, the first and second ends of the top guard 2 are supported by at least two supports, respectively, and the top guard 2 is supported and the path of movement of the top guard 2 is limited when the top guard 2 is moved relative to the guard frame. In the closed state shown in fig. 1, the top guard 2 is positioned on the support guide 3, the support guide 3 supports the first end 21 of the top guard and the second end 22 of the top guard, respectively, and when switching from the closed state shown in fig. 1 to the open state shown in fig. 2, the top guard 2 first slides on the support guide 3, and the support guide 3 guides the top guard 2 in a sliding manner. When switching from the open state shown in fig. 2 to the closed state shown in fig. 1, the top guard 2 finally slides on the support guide 3 to close the hood guard assembly.
As shown in fig. 1 to 3, the first guide portion 4 is provided on the third side of the hood 100, the first guide portion 4 includes a guide surface 41 extending toward the lower side of the hood 100, and when the guide surface 41 faces the top guard 2 in the closed state, the top guard 2 moves toward the third side of the hood 100 and comes into contact with the guide surface 41 at a certain point. The guide surface 41 may be planar as shown, or may be curved in some embodiments not shown.
The first guide portion 4 is configured to: after the top guard 2 moves relative to the guard frame until the third end 23 of the top guard contacts the guide surface 41, the movement path of the top guard 2 is limited together with the support guide 3, so that the third end 23 of the top guard slides along the guide surface 41 while the top guard 2 is supported by the support guide 3. During the switching of the top guard 2 between the closed state and the open state, the top guard 2 moves under the common restriction of the support guide 3 and the first guide 4 for a while. For example, when switching from the closed state shown in fig. 1 to the open state shown in fig. 2, the top guard 2 first slides to the third side of the hood 100 by the supporting and guiding action of the supporting guide portion 3, and when the top guard 2 slides to the third end of the top guard and contacts the guide surface 41 of the first guide portion 4, the third end of the top guard starts to slide along the guide surface 41 to the lower side of the hood 100, and the top guard is also supported by the end portion of the supporting guide portion 3 close to the third side of the hood 100, and the top guard is in the inverted state where the third end slides downward.
As shown in fig. 1 to 4, the bottom support portion 5 is provided on the third side of the hood 100 and located below the protection frame, and is configured to limit the stroke of the third end 23 of the top protection member sliding downward along the guide surface 41, and to support the top protection member 2 in the open state. That is, the third end 23 of the top protection member slides down along the guiding surface 41 to a certain position, and is blocked by the bottom supporting portion 5, so that the top protection member 2 can not slide down any more, and then turns to a certain angle, and the hood protection assembly is opened. In the open state, the bottom support 5 forms a support for the top guard 2 together with other components.
In the hood protection component of the present embodiment, by providing the support guide portion 3, the first guide portion 4, the bottom support portion 5, and the like, when the top protection member 2 is opened, the top protection member 2 is moved on the support guide portion 3, and then the top protection member 2 is turned over to the bottom support portion 5 under the combined restriction of the first guide portion 4 and the support guide portion 3 by the gravity assist to be opened, so that the hood protection component can be opened conveniently, easily, and safely.
In some embodiments, as shown in fig. 1 and 2, the protection frame further includes a second guide portion 6 and a connecting member 7, a first end of the connecting member 7 is hinged to the top protection member 2, a second end of the connecting member 7 is rotatably and slidably connected to the second guide portion 6, the second guide portion 6 is provided with a position-limiting portion for limiting the sliding of the second end of the connecting member 7, and in the open state, the second end of the connecting member 7 is engaged with the position-limiting portion to maintain the top protection member 2 in the open state. In the present embodiment, when the closed state is switched to the open state, the top protection member 2 is turned over under the action of the support guide portion 3 and the guide surface 41 until the third end 23 of the top protection member contacts the bottom support portion 5, and then the second end of the connecting member 7 is engaged with the limiting portion, as shown in fig. 2, so that the turning angle of the top protection member 2 can be maintained, and the open state can be maintained. The bottom support 5 and the connecting piece 7 together now support the top guard 2.
In the embodiment shown in fig. 1 to 3, the connecting member 7 is a connecting rod, the second guiding portion 6 includes a sliding slot 61, the second end of the connecting member 7 includes a sliding block engaged with the sliding slot 61, the sliding block is a cylindrical rod-shaped sliding block, the sliding block can slide in the sliding slot and can also rotate in the sliding slot, and the limiting portion includes a limiting groove 62 connected with the sliding slot 61.
In some embodiments not shown in the drawings, the second guiding portion 6 may also include a first guiding strip, for example, a linear protruding strip, the sliding block is in a dovetail groove structure matched with the guiding strip, the connecting member 7 further includes a rod portion, two ends of the rod portion are respectively hinged with the top guard 2 and the sliding block, the limiting portion is a second guiding strip connected with the first guiding strip and used for being matched with the dovetail groove structure, and an included angle is formed between the second guiding strip and the first guiding strip, and the included angle is greater than 90 degrees, for example.
In some embodiments, when the third end of the top guard 2 is in contact with the bottom support 5 during switching between the closed state and the open state, the top guard 2 is configured to be detached from the support guide 3 and turned over under the support of the bottom support 5. In this embodiment, when the closed state is switched to the open state, the top protection member 2 is turned over under the action of the supporting guide portion 3 and the guide surface 41, and after the third end 23 of the top protection member slides to contact the bottom support portion 5, the top protection member 2 reaches a turning angle, the second end of the connecting member 7 is not matched with the limiting portion, and the limiting portion is closer to the third side of the hood 100. When the second end of the connecting member 7 continues to slide on the second guide portion 6 to approach the limiting portion, the top protection member 2 is separated from the support of the end portion of the support guide portion 3, and continues to turn over under the support of the bottom support portion 5, and after the second end of the connecting member 7 is engaged with the limiting portion, the top protection member 2 reaches the maximum turning angle, and at this time, the hood protection assembly reaches the maximum opening state. The present embodiment can make the flip angle of the top protection member 2 larger when opening the hood protection assembly, the opening space of the hood protection assembly is larger, and the open state can be conveniently and reliably maintained through the cooperation of the second end of the connecting member 2 and the limiting portion.
In some embodiments, the hood guard assembly further comprises a locking device configured to lock the top guard 2 with the guard frame to maintain the top guard 2 in the closed state, in the closed state. The locking means may comprise a fastener, such as a clip, a fixing bolt, or the like. In the closed state, the top protection member 2 and the protection frame are locked, so that the closed state of the hood protection assembly is firmer and more reliable, and the reliability and the safety of the device are improved.
In some embodiments, the support guide 3 is configured to have a tendency of the top guard 2 to move toward the third side of the hood 100 in the closed state. With this arrangement, when the hood guard assembly is switched from the closed state to the open state, if the tendency is large, the top guard 2 can automatically slide toward the third side of the hood under the support and guide of the support guide 3, and after the third end 23 of the top guard contacts the guide surface 41, the third end 23 of the top guard can automatically slide toward the lower side of the hood 100 along the guide surface 41 until contacting the bottom support 5. When switching to the open state, if the tendency is small, the tendency also reduces the manpower required to actuate the top guard 2, making opening of the hood guard assembly more labor-saving and convenient.
In some embodiments, as shown in fig. 1 to 3, the supporting guide 3 includes a pair of first pulleys 31 provided on the first guard part 11 and the second guard part 12, respectively, and a pair of second pulleys 32 provided on the first guard part 11 and the second guard part 12, respectively, and in the closed state, the overhead guard 2 is configured such that a first end thereof is supported on the first pulleys 31 and the second pulleys 32 provided on the first guard part 11, and a second end thereof is supported on the first pulleys 31 and the second pulleys 32 provided on the second guard part 12. By providing the first pulley 31 and the second pulley 32, the top guard 2 can be more flexibly and easily slid on the support guide 3. As shown in fig. 3, the first pulley 31 includes a first roller body 312, a first washer 313, a mounting shaft 311 with a threaded hole, and a screw 314 engaged with the threaded hole of the mounting shaft 311.
In some embodiments, the first pulley 31 is away from the second side of the hood 100 relative to the second pulley 32, and the first pulley 31 is greater in height than the second pulley 32. This arrangement makes it possible to make the top guard 2 have a tendency to slide toward the third side of the hood 100 when supported on the first pulley 31 and the second pulley 32.
In some embodiments, as shown in fig. 1, 2 and 4, the third end of the top guard 2 is provided with a third pulley 231, and the third end of the top guard 2 is in contact with the guide surface 41 through the third pulley 231. This arrangement allows for more effort and flexibility when the third end 23 of the top guard slides over the guide surface 41. As shown in fig. 4, the third pulley 231 includes a mounting plate 2311 with pin holes, a second roller body 2314, a second washer 2313, and a bolt 2312 for inserting into the pin holes of the mounting plate 2311 of the second roller body 2314, the second washer 2313, and the third washer 2315, and a nut 2316 for engaging with the bolt 2312.
In some embodiments, the engineering machine comprises the hood protection assembly.
In some embodiments, the working machine is an excavator, such as a forestry excavator, the excavator further comprises a counterweight 200 connected with the hood 100, the bottom support 5 comprises a cushion block 52 arranged on the top of the counterweight 200, and a buffer block 51 is arranged below the cushion block 52.
The following description illustrates the switching process between the closed state and the open state of the hood guard assembly of the present invention in one embodiment.
A first pulley 31 and a second pulley 32 are respectively arranged on the first protection part 11 and the second protection part 12, the first pulley 31 is far away from the second side of the hood 100 relative to the second pulley 32 on the first protection part 11 and the second protection part 12, and the first pulley 31 is higher than the second pulley. The hood guard assembly is initially in a closed state with the first end 21 of the top guard supported on the first 31 and second 32 pulleys of the first guard portion 11, the second end 22 of the top guard supported on the first 31 and second 32 pulleys of the second guard portion 12, and the fourth end 24 of the top guard locked to the guard frame by the locking means. When switching from the closed state to the open state, the locking device is turned on, since the top guard 2 starts to slide toward the second side of the hood 100 under the action of gravity, after the third pulley 231 of the third end 23 of the top guard contacts the guide surface 41, the third pulley 231 starts to slide toward the lower side of the hood 100 along the guide surface 41, and the top guard 2 is also supported on the second pulley 32, that is, at this time, the top guard 2 is in a state where the third end 23 of the top guard slides downward, and the top guard 2 also turns around the second pulley 32, and when the third pulley 231 slides downward and contacts the bottom support portion 5, the top guard 2 turns over a certain angle and stops turning over, and in this process, the top guard 2 drives the second end of the connecting member 7 to slide in the sliding groove 61, and the second end of the connecting member 7 does not enter the limiting groove 62. The top protection member 2 is separated from the second pulley 32 by external force, the bottom support portion 5 is used as support to continue overturning, the second end of the connecting member 7 continues to approach the limiting groove 62, after the second end of the connecting member 7 enters the limiting groove 62, the top protection member 2 reaches the maximum overturning angle, the overturning state can be maintained under the support of the bottom support portion 5 and the connecting member 7, and the hood protection assembly is switched to an opening state.
When the hood guard assembly is switched from the open state to the closed state, the second end of the connecting member 7 is first moved out of the limiting groove 62 by an external force, the top guard 2 is turned over until it abuts against the second pulley 32, then the third end 23 of the top guard 2 is slid upward along the guide surface 41 by the external force until the top guard 2 simultaneously contacts the first pulley 31 and the second pulley 32, the top guard 2 is pushed away from the third side of the hood 100 to the position where the top guard 2 is in the closed state, and finally the top guard 2 is locked with the guard frame by the locking means, and the hood guard is switched to the closed state.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (11)
1. A hood guard assembly having a closed condition and an open condition, comprising:
a hood (100);
a shield frame provided above the hood (100), including a first shield portion provided on a first side of the hood (100) and a second shield portion (12) provided on a second side of the hood (100) opposite to the first side;
a top shield (2) movably disposed on the shield frame to switch between a closed state and an open state, including opposite first and second ends and opposite third and fourth ends;
a support guide (3) comprising at least two supports respectively located on the first and second guards (12) configured to: -in the closed state, supporting the first and second ends of the top guard (2) by the at least two supports, respectively, and supporting the top guard (2) and limiting the path of movement of the top guard (2) when the top guard (2) is moved relative to the guard frame;
a first guide portion (4) provided on a third side of the hood (100), the first guide portion (4) including a guide surface (41) extending toward a lower side of the hood (100), the guide surface (41) facing the top guard (2) in the closed state, the first guide portion (4) being configured to: after the top protection piece (2) moves relative to the protection frame until the third end contacts the guide surface (41), limiting the moving path of the top protection piece (2) together with the supporting guide part (3), and enabling the third end to slide along the guide surface (41) while the top protection piece (2) is supported on the supporting guide part (3);
and a bottom support section (5) provided on a third side of the hood (100) and located below the protection frame, configured to limit a stroke of downward sliding of the third end along the guide surface (41), and configured to support the top protection member (2) in the open state.
2. The hood guard assembly according to claim 1 wherein the guard frame further comprises a second guide portion (6) and a connecting member (7), a first end of the connecting member (7) is hinged to the top guard (2), a second end of the connecting member (7) is rotatably and slidably connected to the second guide portion (6), the second guide portion (6) is provided with a stopper portion for restricting the second end of the connecting member (7) from sliding, and in the open state, the second end of the connecting member (7) is engaged with the stopper portion to maintain the top guard (2) in the open state.
3. The hood guard assembly according to claim 2 wherein the top guard (2) is configured to disengage the support guide (3) and turn over under the support of the bottom support (5) when the third end of the top guard (2) contacts the bottom support (5) during switching between the closed state and the open state.
4. The hood guard assembly according to claim 2 wherein the second guide portion (6) comprises a slide groove (61), the second end of the connecting member (7) comprises a slide block engaged with the slide groove (61), and the stopper portion comprises a stopper groove (62) connected with the slide groove (61).
5. The hood guard assembly according to claim 1 further comprising a locking device configured to lock the top guard (2) with the guard frame in the closed state to maintain the top guard (2) in the closed state.
6. The hood guard assembly according to any of claims 1 to 5, characterized in that the support guide (3) is configured to have a tendency of the top guard (2) to move towards the second side of the hood (100) in the closed state.
7. The hood guard assembly according to any one of claims 1 to 5 wherein the support guide (3) comprises a pair of first pulleys (31) provided on the first and second guards (12), respectively, and a pair of second pulleys (32) provided on the first and second guards (12), respectively, and in the closed state, the top guard (2) is configured such that a first end thereof is supported on the first and second pulleys (31, 32) provided on the first guard and a second end thereof is supported on the first and second pulleys (31, 32) provided on the second guard (12).
8. The hood guard assembly according to claim 7 wherein the first pulley (31) is located further from a third side of the hood (100) than the second pulley (32), and wherein the first pulley (31) has a greater height than the second pulley (32).
9. The hood guard assembly according to any of claims 1 to 5 wherein the third end of the top guard (2) is provided with a third pulley (231), and the third end of the top guard (2) is in contact with the guide surface (41) through the third pulley (231).
10. A working machine comprising a hood guard assembly according to any one of claims 1 to 9.
11. The working machine according to claim 10, characterized in that the working machine is an excavator, which excavator further comprises a counterweight (200) connected to the bonnet (100), and that the bottom support (5) comprises a pad (52) arranged on top of the counterweight (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010559630.8A CN111648433B (en) | 2020-06-18 | 2020-06-18 | Aircraft bonnet protection component and engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010559630.8A CN111648433B (en) | 2020-06-18 | 2020-06-18 | Aircraft bonnet protection component and engineering machine |
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| Publication Number | Publication Date |
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| CN111648433A CN111648433A (en) | 2020-09-11 |
| CN111648433B true CN111648433B (en) | 2021-11-19 |
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| CN202010559630.8A Active CN111648433B (en) | 2020-06-18 | 2020-06-18 | Aircraft bonnet protection component and engineering machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4060261A (en) * | 1976-02-02 | 1977-11-29 | Clark Equipment Company | Loader main frame for skid steer loader |
| GB2521284B (en) * | 2012-07-25 | 2017-03-08 | Volvo Constr Equip Ab | Structure for preventing heat of muffler for contruction machine from being diffused |
| CN204370501U (en) * | 2014-12-11 | 2015-06-03 | 中联重科股份有限公司渭南分公司 | The protector of engineering machinery upper brace appearance member and engineering machinery |
| CN209618703U (en) * | 2019-01-16 | 2019-11-12 | 浙江三一装备有限公司 | Crawler crane driver's cabin protective device at top |
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2020
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| CN111648433A (en) | 2020-09-11 |
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