Hinge assembly, hood assembly and loader

Abstract

The utility model relates to the technical field of loading machinery, and discloses a hinge assembly, a hood assembly and a loader. The upper seat comprises a first plate body, a second plate body and a third plate body which are sequentially connected, the first end of the first plate body is rotatably connected with the lower seat, the first end of the second plate body is connected with the second end of the first plate body, and the first end of the third plate body is connected with the second end of the second plate body; a first notch is defined by the first plate body, the second plate body and the third plate body; according to the hinge assembly provided by the utility model, the special-shaped hinge is arranged and comprises the lower seat and the upper seat which is rotatably connected to the lower seat, and the first notch is formed among the first plate body, the second plate body and the third plate body which are arranged at the upper seat, so that on one hand, the hinge assembly can be arranged in the loading machine; and on the other hand, when the hood is turned over and opened, the upper seat can feed the hood to the front side position in the forward direction of the y direction, and interference between the arc-shaped hood and the balance weight is avoided.

Description

Technical Field

[0001] This utility model relates to the field of loading machinery technology, specifically to a hinge assembly, a hood assembly, and a loader. Background Technology

[0002] A loader is a type of wheeled or tracked engineering machinery, mainly used for loading, handling, unloading, and short-distance transportation of bulk materials. It is a core piece of equipment in earthwork engineering, mining, ports, and other fields.

[0003] The engine hood of the loader is a key component for protecting the power system. The loader surface is also equipped with counterweights to form a lever arm balance with the working device (bucket / fork) and reduce the risk of the rear wheels leaving the ground during lifting operations.

[0004] In related technologies, the engine hood is connected to the frame by hinges. However, the hinges are often exposed, making them prone to rust and the entry of dust and other contaminants, which affects their service life. Furthermore, for curved engine hoods, the existing hinge structure makes it difficult to achieve normal rotation of the curved engine hood. During the rotation process, the curved engine hood is prone to interference with the counterweight, which in turn affects its normal rotation. Utility Model Content

[0005] In view of this, the present invention provides a hinge assembly, a hood assembly, and a loader to solve the problem that existing hinges at the connection between the hood and the frame are often exposed and cannot meet the normal rotation requirements of the curved hood.

[0006] In a first aspect, the present invention provides a hinge assembly, comprising: a lower seat; and an upper seat, comprising a first plate, a second plate, and a third plate connected in sequence, wherein a first end of the first plate is rotatably connected to the lower seat, a first end of the second plate is connected to a second end of the first plate, the second plate is set at a predetermined angle to the first plate, the second plate extends away from the lower seat, and a first end of the third plate is connected to a second end of the second plate, the third plate is set at a predetermined angle to the second plate and is spaced apart from the first plate, such that the first plate, the second plate, and the third plate enclose a first notch.

[0007] Beneficial effects: By setting an irregularly shaped hinge, which includes a lower seat and an upper seat rotatably connected to the lower seat, and the upper seat includes a first plate, a second plate, and a third plate connected in sequence, with the end of the first plate away from the second plate rotatably connected to the lower seat, and the first plate, the second plate, and the third plate forming a first notch, the hinge assembly can be placed inside the loader, avoiding direct exposure of the hinge to the external environment and improving the service life of the hinge. Specifically, it can be placed between the frame and the counterweight, improving space utilization. On the other hand, when the hood is flipped open, the upper seat can send the hood to the front position along the positive y-direction, avoiding interference between the curved hood and the counterweight, optimizing the opening and closing trajectory of the hood, and avoiding collisions.

[0008] In one optional embodiment, the lower seat includes a fourth plate, a fifth plate, and a sixth plate connected in sequence; the first end of the fourth plate is rotatably connected to the first plate, the first end of the fifth plate is connected to the second end of the fourth plate, and the fifth plate and the fourth plate are arranged at a predetermined angle; the first end of the sixth plate is connected to the second end of the fifth plate, and the sixth plate and the fifth plate are arranged at a predetermined angle and spaced apart from the fourth plate, so that the fourth plate, the fifth plate, and the sixth plate form a second recess.

[0009] Beneficial effects: The lower seat serves as a support platform for the upper seat. The fourth plate of the lower seat is fixed to the end of the first plate away from the second plate, and the fourth plate allows the upper seat to be suspended, ensuring that the upper seat will not collide with the lower seat when rotating. In addition, by setting a composite three-section lower seat with the fifth plate as the basic support plate, the fourth plate as the support plate, and the sixth plate as the connecting plate, the structural stability, anti-interference and installation reliability of the irregular hinge are improved, and stable support is achieved.

[0010] In one optional embodiment, the hinge assembly further includes a first bushing, a second bushing, and a connecting shaft, wherein the first bushing and the second bushing are coaxially arranged; the fourth plate is fixed to the first bushing, and the first plate is fixed to the second bushing; the connecting shaft passes through both the first bushing and the second bushing, and the first bushing and the second bushing are rotatable around the connecting shaft, so that the first plate and the fourth plate are rotatably connected.

[0011] In one alternative embodiment, the mounting base includes a base plate and at least two side edges connected to opposite sides of the base plate; the third plate is fixed to the base plate.

[0012] In one optional embodiment, a first mounting hole is provided through the substrate. The first mounting hole is a strip-shaped hole and extends along the x-direction. The third plate includes a main plate, a wing plate, and a retaining plate. The first end of the main plate is connected to the second plate, and the second end of the plate protrudes to form a retaining plate. The opposite sides of the main plate along the x-direction protrude to form wing plates. The retaining plate is fixed in place with the first mounting hole, and the wing plate abuts against the substrate.

[0013] In one optional embodiment, a second mounting hole is provided through the mounting base, the second mounting hole being a strip-shaped hole extending along the x-direction; a third mounting hole is provided through the sixth plate, the third mounting hole being a strip-shaped hole extending along the z-direction; and / or; the hinge assembly further includes a gasket, the gasket being disposed on the side of the sixth plate opposite to the fourth plate, and multiple gaskets being stacked sequentially along the y-direction; and / or; the lower seat further includes a rib, the rib being disposed within the second recess, the rib being connected to the fourth plate, the fifth plate, and the sixth plate respectively; and / or; a clearance notch is provided at the side; and / or; a thread seat is provided at the side.

[0014] Beneficial effects: The second mounting hole extends along the x-direction on the mounting base, and the third mounting hole extends along the z-direction on the sixth plate. The gaskets are stacked sequentially along the y-direction between the sixth plate and the frame. When the hinge assembly is connected to the hood and the frame, it can be adjusted and installed in the x, y, and z directions to meet the installation requirements of the hood in different positions. It has strong compatibility and improves assembly performance.

[0015] Secondly, this utility model also provides a cover assembly, which is mounted on a vehicle frame and includes: a cover, which is an arc-shaped cover plate; a hinge assembly as described in any of the above claims, wherein the sixth plate of the hinge assembly is fixed to the vehicle frame, and the mounting base of the hinge assembly is fixed to the arc-shaped cover plate of the cover; the hinge assembly is located between the counterweight and the vehicle frame; wherein the cover assembly has an open state and a closed state; in the closed state, the cover is positioned over the inner body, and the opening direction of the first recess is oriented towards the positive y-direction; in the open state, the cover flips in the positive y-direction, causing the upper seat to rotate around the axis of the connecting shaft.

[0016] Beneficial effects: By setting up a first plate, a second plate, and a third plate connected in sequence, and forming a first notch between the second plate and the third plate, all components of the hinge assembly are located inside the loader when the hood is closed, avoiding exposure that could affect the service life of the hinge assembly and the overall aesthetics of the loader. When the hood is flipped, the upper seat can send the hood to the front position facing the y-direction, thereby avoiding interference with the counterweight and improving performance.

[0017] Thirdly, this utility model also provides a loader, including a hood assembly. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced 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 creative effort.

[0019] Figure 1 This is a schematic diagram of the hinge assembly of this utility model;

[0020] Figure 2 This is a schematic diagram of the mounting base of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the third plate of this utility model;

[0022] Figure 4 This is a schematic diagram showing the fit between the hinge assembly and the mounting base of this utility model;

[0023] Figure 5 This is a schematic diagram showing the cooperation between the vehicle cover assembly and the vehicle frame in the closed state.

[0024] Figure 6 This is a schematic diagram of the inner structure of the vehicle cover assembly of this utility model;

[0025] Figure 7 This is a schematic diagram showing the assembly of the present invention in the closed state of the cover;

[0026] Figure 8 This is an exploded view of the machine cover of this utility model in the closed state;

[0027] Figure 9 This is a schematic diagram of the machine cover of this utility model after it has been fully opened by flipping it back;

[0028] Figure 10 This is a schematic diagram of the entire machine cover of this utility model after it has been fully opened by flipping it back.

[0029] Figure 11 This is a side view of the hinge assembly of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Lower seat; 11. Fourth plate; 12. Fifth plate; 13. Sixth plate; 131. Third mounting hole; 14. Gasket; 15. Rib; 16. First fastener; 17. Second notch;

[0032] 2. Upper seat; 21. First plate; 22. Second plate; 23. Third plate; 231. Wing plate; 232. Clamping plate; 233. Main plate; 24. Second fastener; 25. First notch;

[0033] 4. Connecting shaft;

[0034] 5. First bushing;

[0035] 6. Second bushing;

[0036] 7. Frame; 71. Counterweights;

[0037] 8. Machine cover;

[0038] 9. Mounting base; 91. First mounting hole; 92. Second mounting hole; 93. Wire seat; 94. Substrate; 95. Side; 951. Relief notch. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] The following is combined Figures 1 to 11 The following describes embodiments of the present invention.

[0044] According to an embodiment of the present invention, a hinge assembly is provided, comprising: a lower seat 1; and an upper seat 2, comprising a first plate 21, a second plate 22, and a third plate 23 connected in sequence. The first end of the first plate 21 is rotatably connected to the lower seat 1. The first end of the second plate 22 is connected to the second end of the first plate 21. The second plate 22 is set at a predetermined angle to the first plate 21 and extends in a direction away from the lower seat 1. The first end of the third plate 23 is connected to the second end of the second plate 22. The third plate 23 is set at a predetermined angle to the second plate 22 and is spaced apart from the first plate 21, so that the first plate 21, the second plate 22, and the third plate 23 enclose and form a first notch 25.

[0045] The hinge assembly provided in this embodiment is connected between the cover 8 and the frame to realize the flipping function of the cover 8. Specifically, the lower seat 1 is fixed to the frame and serves as a support platform. The plates located on opposite sides of the first recess 25 along the z-direction are connected to the lower seat 1 and the cover 8 respectively. That is, the first plate 21 is rotatably connected to the lower seat 1, and the third plate 23 is connected to the cover 8 (it can be understood that it can be a direct connection or an indirect connection). The opening of the first recess 25 faces the positive y-direction, which is the direction indicated by the y-direction arrow in the attached figure, that is, the forward side of the rotation direction of the upper seat 2 when the cover 8 is flipped open.

[0046] On the one hand, the upper seat 2 and the lower seat 1 are rotatably connected. The lower seat 1 serves as a support platform for the upper seat 2. Since the first plate 21, the second plate 22 and the third plate 23 of the upper seat 2 enclose and form a first recess 25, after the third plate 23 is connected to the hood 8, the second plate 22 and the third plate 23 can be extended downwards. This allows the lower seat 1 and the first plate 21 to be arranged inside the loader, specifically between the frame and the counterweight 71, avoiding exposure. At the same time, the third plate 23 is connected to the inside of the hood 8. When the hood is closed, the entire hinge assembly is located inside the loader, achieving the purpose of preventing the hinge from being exposed and improving the service life of the hinge.

[0047] On the other hand, the upper seat 2 and the lower seat 1 are rotatably connected. The lower seat 1 serves as a support platform for the upper seat 2. Since the first plate 21, the second plate 22 and the third plate 23 of the upper seat 2 enclose and form a first recess 25, and the opening of the first recess 25 faces the forward side of the rotation direction when the cover 8 is flipped open, when the cover 8 is in the closed state, the first plate 21 can be extended in the positive y direction relative to the second plate 22. The end of the first plate 21 away from the second plate 22 is rotatably connected to the lower seat 1. Thus, when the cover 8 is flipped in the positive y direction to open, under the action of the first plate 21 and the second plate 22, the cover 8 can be flipped to the front position in the positive y direction, thereby avoiding interference between the cover 8 and the counterweight 71. During the rotation, the upper seat 2 avoids the counterweight 71 by means of the first recess 25, thus avoiding interference between the hinge assembly and the counterweight 71.

[0048] In this embodiment, an irregularly shaped hinge is provided, comprising a lower seat 1 and an upper seat 2 rotatably connected to the lower seat 1. The upper seat 2 comprises a first plate 21, a second plate 22, and a third plate 23 connected in sequence. The end of the first plate 21 away from the second plate 22 is rotatably connected to the lower seat 1. A first notch 25 is formed between the first plate 21, the second plate 22, and the third plate 23. On the one hand, this allows the irregularly shaped hinge to be installed inside the loader, avoiding direct exposure of the hinge to the external environment and improving the service life of the hinge. Specifically, it can be installed between the frame and the counterweight, improving space utilization. On the other hand, when the hood 8 is flipped open, the upper seat 2 can send the hood 8 to the front position along the positive y-direction, avoiding interference between the hood 8 and the counterweight, optimizing the opening and closing trajectory of the hood 8, and avoiding collisions.

[0049] In one optional embodiment, the length of the first plate 21 is L1, and the value of L1 is in the range of 65mm≤L1≤75mm; the length of the second plate 22 is L2, and the value of L2 is in the range of 85mm≤L2≤105mm.

[0050] Optionally, the value of L1 can be any one of 65mm, 65.1mm, 65.8mm, 67mm, 68mm, 70mm, 72mm, 74.9mm, 75mm, or any value between any two values.

[0051] Optionally, the value of L2 can be any one of 85mm, 85.1mm, 85.5mm, 86mm, 88mm, 94mm, 98mm, 100mm, 104.9mm, 105mm, etc., or a value between any two values.

[0052] In one optional embodiment, the length L1 of the first plate 21 and the length L2 of the second plate 22 satisfy 0.62 < L1 / L2 < 0.88. It should be noted that L1 is related to the opening angle of the hood 8. The larger L1 is, the larger the tilt angle of the hood 8 when it flips. L2 is mainly related to the thickness of the counterweight in the length direction of the vehicle body, i.e., the y-direction. The larger L2 is, the larger the span in the positive y-direction when the hood 8 flips. This setting ensures that the hood can obtain a sufficient opening angle and sufficient displacement in the y-direction to avoid interference between the hood 8 and the counterweight, thus meeting the operational requirements. At the same time, since the hinge assembly is set between the counterweight and the frame, it avoids the hinge assembly occupying too much space and affecting the overall layout of the loader.

[0053] Optionally, the value of L1 / L2 can be any one of 0.63, 0.67, 0.71, 0.78, 0.84, 0.87, or any value between any two values.

[0054] In some embodiments, combined with Figure 1 As shown, the lower base 1 includes a fourth plate 11, a fifth plate 12, and a sixth plate 13 connected in sequence; the first end of the fourth plate 11 is rotatably connected to the first plate 21, the first end of the fifth plate 12 is connected to the second end of the fourth plate 11, and the fifth plate 12 is set at a predetermined angle to the fourth plate 11; the first end of the sixth plate 13 is connected to the second end of the fifth plate 12, and the sixth plate 13 is set at a predetermined angle to the fifth plate 12 and is spaced apart from the fourth plate 11, so that the fourth plate 11, the fifth plate 12, and the sixth plate 13 enclose and form a second recess 17.

[0055] Specifically, the fifth plate 12 serves as the basic support plate, and the fourth plate 11 and the sixth plate 13 are respectively connected to the two sides of the fifth plate 12; the fourth plate 11 is connected to the upper seat 2 and serves as a support plate, so that the upper seat 2 is spaced apart from the fifth plate 12 to prevent interference between the upper seat 2 and the fifth plate 12 during rotation; the sixth plate 13 is provided at the end of the fifth plate 12 away from the fourth plate 11, and the sixth plate 13 is fixed to the frame and serves as a connecting plate to improve the reliability of the lower seat 1 being fixed to the frame.

[0056] In this embodiment, the lower seat 1 serves as a support platform for the upper seat 2. The fourth plate 11 of the lower seat 1 is fixed to the end of the first plate 21 away from the second plate 22. The fourth plate 11 enables the upper seat 2 to be suspended in the air, ensuring that the upper seat 2 will not collide with the lower seat 1 when rotating. In addition, by setting the fifth plate 12 as the basic support plate, the fourth plate 11 as the support plate, and the sixth plate 13 as the connecting plate, the structural stability, anti-interference and installation reliability of the irregular hinge are improved, and stable support is achieved.

[0057] In some embodiments, combined with Figure 1 As shown, the hinge assembly also includes a first bushing 5, a second bushing 6, and a connecting shaft 4. The first bushing 5 and the second bushing 6 are coaxially arranged. The fourth plate 11 is fixed to the first bushing 5, and the first plate 21 is fixed to the second bushing 6. The connecting shaft 4 passes through both the first bushing 5 and the second bushing 6. The first bushing 5 and the second bushing 6 can rotate around the connecting shaft 4, so that the first plate 21 and the fourth plate 11 can be rotatably connected.

[0058] Specifically, at least two second bushings 6 are disposed on opposite sides of the first bushing 5 along the axial direction and aligned with the first bushing 5. Both the first bushing 5 and the second bushing 6 can be round tubes, and both the first bushing 5 and the second bushing 6 can be rotatably fitted onto the same connecting shaft 4. One end of the fourth plate 11 is welded and fixed to the first bushing 5, while the other part of the plate has a gap with the second bushing 6 to prevent interference between the second bushing 6 and the fourth plate 11 during rotation. One end of the first plate 21 is welded and fixed to the second bushing 6, while the other part of the plate has a gap with the first bushing 5 to prevent interference between the first bushing 5 and the first plate 21 during rotation.

[0059] In some embodiments, combined with Figure 4 As shown, it also includes a mounting base 9 comprising a base plate 94 and at least two side edges 95 connected to opposite sides of the base plate 94; a third plate 23 is fixed to the base plate 94.

[0060] Specifically, the base plate 94 of the mounting seat 9 is fixed to the inner arc-shaped cover of the cover 8 by means of the second fastener 24. The second fastener 24 can be a bolt. The mounting seat 9 provides a flat mounting position for the upper seat 2 to avoid the unstable connection caused by the upper seat 2 directly cooperating with the arc-shaped cover. The third plate 23 of the upper seat 2 is fixed to the mounting seat 9. The mounting seat 9 is used to achieve a stable fixation between the irregular hinge and the arc-shaped cover.

[0061] In this embodiment, the mounting base 9 serves as a transition component connecting the upper base 2 and the arc-shaped cover of the machine cover 8. The base plate 94 serves as a support plate for the mounting base 9, providing a planar mounting position to ensure that the third plate 23 of the upper base 2 can be firmly fixed to the machine cover 8, avoiding direct contact between it and the curved surface of the arc-shaped cover, which could lead to unstable connection or stress concentration, thus meeting the installation requirements of the arc-shaped machine cover 8.

[0062] In some embodiments, combined with Figure 2As shown, a first mounting hole 91 is provided through the substrate 94. The first mounting hole 91 is a strip-shaped hole and extends along the x-direction. The third plate 23 includes a main plate 233, a wing plate 231, and a retaining plate 232. The first end of the main plate 233 is connected to the second plate 22, and the retaining plate 232 protrudes from the second end of the plate. The wing plates 231 protrude from opposite sides of the main plate 233 along the x-direction. The retaining plate 232 is fixed in place with the first mounting hole 91, and the wing plate 231 abuts against the substrate 94.

[0063] Specifically, the first mounting hole 91 is a plug welding hole, which is a process hole used for welding metal structures. By pre-drilling holes in the plate, the plate is welded to another plate through the hole to form a firm connection. The clamping plate 232 is inserted into the first mounting hole 91, and the wing plate 231 abuts against the base plate 94 to achieve pre-fixation and prevent displacement during welding. Then, welding is performed at the contact surface between the clamping plate 232 and the first mounting hole 91 to fix the clamping plate 232 and the base plate 94. The first mounting hole 91 has the dual function of a positioning hole and a welding hole.

[0064] In some embodiments, combined with Figures 1 to 4 As shown, a second mounting hole 92 is provided through the mounting base 9. The second mounting hole 92 is a strip-shaped hole and extends along the x-direction. A third mounting hole 131 is provided through the sixth plate 13. The third mounting hole 131 is a strip-shaped hole and extends along the z-direction. And / or, the hinge assembly also includes a gasket 14, which is disposed on the side of the sixth plate 13 opposite to the fourth plate 11, and a plurality of gaskets 14 are stacked sequentially along the y-direction.

[0065] In this embodiment, the second mounting hole 92 extends along the x-direction on the mounting base 9, the third mounting hole 131 extends along the z-direction on the sixth plate 13, and the gasket 14 is stacked sequentially along the y-direction between the sixth plate 13 and the frame 7. It is used to adjust the installation in the x-direction, y-direction and z-direction when the hinge assembly is connected to the cover 8 and the frame 7, so as to meet the installation requirements of the cover 8 in different positions, which has strong compatibility and improves assembly performance.

[0066] Specifically, the mounting base 9 is fixed to the housing 8 by means of a second fastener 24, which passes through a second mounting hole 92 and is fixed to the housing 8. The second fastener 24 can be a bolt. The second mounting hole 92 extends along the x-direction. The position of the second fastener 24 at the second mounting hole 92 can be determined according to the position of the housing 8, thereby achieving the purpose of adjusting the installation in the x-direction. The sixth plate 13 is fixed to the frame by means of a first fastener 16, which can be a bolt. The third mounting hole 131 extends along the z-direction. The position of the first fastener 16 at the third mounting hole 131 can be determined according to the position of the housing 8, thereby achieving the purpose of adjusting the installation in the z-direction. A shim 14 is sandwiched between the sixth plate 13 and the frame. The shims 14 are stacked sequentially along the y-direction. The number of shims 14 can be determined according to the position of the housing 8, thereby achieving the purpose of adjusting the installation in the y-direction.

[0067] In some embodiments, a clearance notch 951 is provided at the side 95 to prevent the mounting base 9 from interfering with the condenser when the hinge assembly is in motion.

[0068] In some embodiments, the lower seat 1 further includes a rib plate 15, which is disposed in the second recess 17. The rib plate 15 is connected to the fourth plate 11, the fifth plate 12 and the sixth plate 13 respectively. The rib plate 15 is used to enhance the structural strength of the lower seat 1, thereby increasing the support performance of the lower seat 1 and ensuring the stability of the upper seat 2 during rotation.

[0069] In some embodiments, a threaded seat 93 is provided at the side 95, and a limiting strap can be tied at the threaded seat 93. The other end of the limiting strap can be tied to the body of the loader. When the hood is opened to the limit position, the limiting strap is tensioned to limit and fix the hood.

[0070] According to an embodiment of the present invention, another aspect provides a cover assembly, which is mounted on a frame 7 and includes: a cover 8, which is an arc-shaped cover plate; a hinge assembly as described in any of the above claims, wherein the sixth plate 13 of the hinge assembly is fixed to the frame 7, and the mounting base 9 of the hinge assembly is fixed to the arc-shaped cover plate of the cover 8; the hinge assembly is located between the counterweight and the frame 7; wherein the cover assembly has an open state and a closed state; in the closed state, the cover 8 covers the inner body, and the opening direction of the first recess 25 is oriented in the positive y-direction; in the open state, the cover 8 flips in the positive y-direction, causing the upper seat 2 to rotate around the axis of the connecting shaft 4.

[0071] The specific usage process of the hood assembly is as follows: During normal operation of the loader, the hood 8 is in the closed state, covering the internal body, which can be, but is not limited to, the engine. At this time, the hood 8 is locked and fixed by the hood lock, which is an existing component and will not be described in detail here. At this time, the upper seat 2 is located above the lower seat 1 along the z-direction, and the opening direction of the first recess 25 faces the positive y-direction. The third plate 23 is connected to the inner plate of the hood 8 by means of the mounting seat 9. The lower seat 1 is arranged between the frame 7 and the counterweight. The hinge assembly is hidden inside the loader. The opening method of the hood 8 can be, but is not limited to, a rear-flip type. When it is necessary to flip the hood 8, the hood lock is opened, and the operator applies force to flip the hood 8 in the positive y-direction. The positive y-direction is the direction indicated by the y-direction arrow in the attached figure. Under the action of the hinge assembly, the hood 8 flips to the front position along the positive y-direction, thereby avoiding interference with the counterweight.

[0072] In this embodiment, by setting a first plate 21, a second plate 22, and a third plate 23 connected in sequence, and forming a first notch 25 between the second plate 22 and the third plate 23, all components of the hinge assembly are located inside the loader when the cover 8 is closed, avoiding exposure that could affect the service life of the hinge assembly and the overall aesthetics of the loader. When the cover 8 is flipped, the upper seat 2 can send the cover 8 to the front position facing the y-direction, thereby avoiding interference with the counterweight and improving performance.

[0073] According to an embodiment of the present invention, another aspect provides a loader including a hood assembly.

[0074] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. A hinge assembly, comprising: The hinge assembly comprises a lower seat (1), an upper seat (2), a first shaft sleeve (5), a second shaft sleeve (6) and a connecting shaft (4). The lower seat (1) comprises a fourth plate body (11), a fifth plate body (12) and a sixth plate body (13) connected in sequence. The first end of the fourth plate body (11) is rotatably connected with the first plate body (21), the first end of the fifth plate body (12) is connected with the second end of the fourth plate body (11), and the fifth plate body (12) is arranged at a predetermined angle with the fourth plate body (11).

2. The hinge assembly of claim 1, wherein The first end of the sixth plate body (13) is connected with the second end of the fifth plate body (12), the sixth plate body (13) is arranged at a predetermined angle with the fifth plate body (12) and is spaced apart from the fourth plate body (11), so that the fourth plate body (11), the fifth plate body (12) and the sixth plate body (13) form a second recess (17). The hinge assembly further comprises a mounting seat (9) extending along the x direction, the mounting seat (9) is connected with the third plate body (23), and the mounting seat (9) is suitable for connecting a hood. The mounting seat (9) comprises a base plate (94) and at least two side edges (95) connected to opposite sides of the base plate (94), a first mounting hole (91) is provided through the base plate (94), the first mounting hole (91) is a strip-shaped hole, and the first mounting hole (91) extends along the x direction.

3. The hinge assembly of claim 2, wherein, The third plate body (23) comprises a main plate (233), a wing plate (231) and a clamping plate (232). ​ ​ 4. The hinge assembly of claim 3, wherein ​ 5. The hinge assembly of claim 4, wherein, ​ ​ The first end of the main plate (233) is connected with the second plate body (22), and the second end is connected with the clamping plate (232). Wings (231) are formed on the opposite sides of the main plate (233) along the x direction. The clamping plate (232) is fixed in cooperation with the first mounting hole (91), and the wings (231) abut against the base plate (94).

6. The hinge assembly of claim 5, wherein, A second mounting hole (92) is provided through the mounting seat (9). The second mounting hole (92) is a strip-shaped hole, and the second mounting hole (92) is provided along the x direction. A third mounting hole (131) is provided through the sixth plate body (13). The third mounting hole (131) is a strip-shaped hole, and the third mounting hole (131) is provided along the z direction. The hinge assembly further includes a gasket (14) provided on the side of the sixth plate body (13) away from the fourth plate body (11). A plurality of gaskets (14) are sequentially stacked along the y direction.

7. The hinge assembly of claim 6, wherein, A side (95) is provided with a clearance gap (951); and / or, A side (95) is provided with a wire seat (93).

8. The hinge assembly of claim 2, wherein, The lower seat (1) further includes a rib plate (15) provided in the second notch (17). The rib plate (15) is connected with the fourth plate body (11), the fifth plate body (12), and the sixth plate body (13), respectively.

9. A hood assembly mounted to a vehicle frame (7), characterized in that Comprising: A cover (8) is an arc-shaped cover plate; The hinge assembly of any one of claims 1 to 8, wherein the hinge assembly is connected with the cover; The cover assembly has an open state and a closed state. In the closed state, the cover (8) covers the internal machine body, and the opening direction of the first notch (25) is arranged towards the y direction. In the open state, the cover (8) is flipped towards the y direction, drives the upper seat (2) to rotate, and makes the first notch (25) avoid the counterweight.

10. A loader characterized by Comprising the cover assembly of claim 9.

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