Hopper assembly and engineering vehicle

Abstract

The utility model provides a hopper assembly which comprises a hopper body, a hopper cover and a bottom plate, the hopper cover is installed on the hopper body in an opening and closing mode, and one end of the bottom plate is fixed to the hopper cover; the other end is elastically connected with the hopper body; the device further comprises a pull rod, a stop lever, a torsion spring and a limiting block fixed to the bottom plate, and the pull rod is arranged on the bottom plate in parallel and can move back and forth in the axial direction. When the hopper cover is unfolded, the bottom plate is used for driving the free end of the stop lever to bypass the lowest point of a certain limiting column, the free end of the stop lever is limited by the limiting block through resilience force of the torsional spring, and therefore the hopper cover is fixed to a certain limiting angle. When the hopper cover is closed, the pull rod is used for driving the stop lever to relieve limiting, and closing of the hopper cover is completed. The utility model further provides an engineering vehicle with the hopper assembly, the hopper assembly and the engineering vehicle can enable constructors to independently open and limit the hopper cover, two persons do not need to cooperate, and the hopper assembly and the engineering vehicle are simple and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a hopper assembly and an engineering vehicle. Background Art

[0002] A hopper is a device for storing and transporting materials, usually made of metal or plastic, with different shapes and sizes to adapt to different application scenarios. In the current hopper devices on the market, the bottom of the hopper cover is connected to the two side plates of the hopper by bolts, which is used to assist the hopper in receiving materials. However, the opening and closing of the hopper cover are both completed manually. Due to the heavy self-weight of the hopper cover and the bolts, it is difficult for one person to complete it independently, and the angle of the hopper cover after opening cannot be maintained.

[0003] The utility model proposes a solution to the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hopper assembly and an engineering vehicle, which can enable construction personnel to independently open and limit the hopper cover without the need for multiple people to cooperate, and is simple and efficient.

[0005] To achieve the above purpose, the technical solution of the utility model is realized as follows:

[0006] The utility model provides a hopper assembly, including a hopper body, a hopper cover, and a bottom plate. The hopper cover is detachably installed on the hopper body. One end of the bottom plate is fixed on the hopper cover, and the other end is elastically connected to the hopper body.

[0007] The hopper assembly further includes a pull rod, a stop rod, a torsion spring, and a limit block fixed on the bottom plate. The pull rod is parallelly installed on the bottom plate and can move back and forth along the axial direction. The fixed end of the stop rod is installed on the pull rod, and the torsion spring connects the pull rod and the stop rod. The hopper assembly further includes a plurality of limit columns near the free end of the stop rod.

[0008] When the hopper cover is unfolded, the bottom plate is used to drive the free end of the stop rod to bypass the lowest point of a certain limit column. The resilience of the torsion spring causes the free end of the stop rod to rebound and be limited by the limit column, and the fixed end of the stop rod is limited by the limit block, so as to fix the hopper cover at a certain limit angle. When the hopper cover is closed, the pull rod is used to drive the stop rod to release the limit and complete the closing.

[0009] Specifically, in this embodiment, the hopper assembly further includes a limit frame installed on the hopper body, and the plurality of limit columns are fixed on the limit frame and respectively correspond to a plurality of preset limit angles.

[0010] Specifically, in this embodiment, the limiting frame includes a mounting section and a bent section. The mounting section is fixed on the hopper body, the bent section is connected to one end of the mounting section, and the plurality of limiting posts are sequentially mounted on the bent section.

[0011] Specifically, in this embodiment, the blocking rod includes two connecting rods arranged in parallel. Collar rings are provided at one ends of the connecting rods, and the other ends are connected to each other.

[0012] Specifically, in this embodiment, the pull rod includes a rod body, a pull rod baffle provided at one end of the rod body, and a handle installed at the other end of the rod body.

[0013] Specifically, in this embodiment, a plurality of positioning rings are installed on the bottom plate, and the plurality of positioning rings and the collar rings are all sleeved on the rod body.

[0014] Specifically, in this embodiment, a first axial return spring, a second axial return spring, and a third axial return spring are further sleeved on the rod body. The first axial return spring, the second axial return spring, and the third axial return spring are sequentially arranged at intervals with the plurality of positioning rings. The radial dimension of the pull rod baffle is larger than the inner diameter of the first axial return spring.

[0015] Specifically, in this embodiment, the handle is used to drive the rod body to move in the axial direction, and the first axial return spring, the second axial return spring, and the third axial return spring are compressed, so that the free end of the blocking rod is disengaged from the limiting post.

[0016] Specifically, in this embodiment, one end of the bottom plate is fixed on the hopper cover; the other end is elastically connected to the hopper body through an elastic body.

[0017] The present utility model further provides an engineering vehicle, and the engineering vehicle includes the hopper assembly in this embodiment.

[0018] Advantages of the present utility model:

[0019] For the hopper assembly and the engineering vehicle provided by the present utility model, when the hopper cover of the hopper assembly is opened, through the bottom plate fixed on the hopper cover, the pull rod installed in the bottom plate and capable of moving back and forth in the axial direction, and the blocking rod installed on the pull rod move together with the hopper cover. The bottom plate drives the free end of the blocking rod to bypass the lowest point of a certain limiting post. The resilience of the torsion spring causes the free end of the blocking rod to rebound and be limited by the limiting post, and the fixed end is limited by the limiting block, thereby fixing the hopper cover at a certain limiting angle. Thus, multiple-angle limiting of the hopper cover can be realized; when closing the cover, the pull rod is pulled outwards, and the blocking rod is released from the limit to complete the closing. This hopper assembly enables construction personnel to independently open and limit the hopper cover without the need for multiple people to cooperate, which is simple and efficient and applicable to various situations. Brief Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the hopper assembly provided by an embodiment of the present utility model.

[0022] Figure 2 For Figure 1 It is an enlarged schematic diagram of the overall structure of the hopper assembly shown.

[0023] Figure 3 For Figure 1 It is a schematic diagram of the structure of the bottom plate in the hopper assembly shown.

[0024] Figure 4 For Figure 1 It is a schematic diagram of the structure of the retaining rod in the hopper assembly shown.

[0025] Figure 5 For Figure 1 It is a schematic diagram of the structure of the pull rod in the hopper assembly shown.

[0026] Figure 6 For Figure 1 It is a schematic diagram of the structure of the torsion spring in the hopper assembly shown.

[0027] Figure 7 For Figure 1 It is a schematic diagram of the spring connection on the pull rod shown.

[0028] In the figure: 1. Hopper body; 2. Hopper cover; 3. Bottom plate; 31. Limit block; 32. Positioning ring; 4. Pull rod; 41. Rod body; 42. Handle; 43. Pull rod baffle; 5. Retaining rod; 51. Sleeve ring; 52. Connecting rod; 6. Limit frame; 61. Limit post; 611. Sliding surface; 612. Abutting surface; 62. Installation section; 63. Bending section; 7. Elastic body; 8. Spring connecting plate; 9. Torsion spring; 91. Hanging ear; 10. First axial return spring; 11. Second axial return spring; 12. Third axial return spring. Detailed Embodiments

[0029] The following will describe in detail specific embodiments of the present utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the description of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0030] In the description of the present utility model, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0031] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the workpiece of this utility model is usually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0032] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0033] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the elements listed, it may also include other elements not specifically listed.

[0034] Such as Figures 1 to 7As shown in the figure, a preferred embodiment of the present application includes a hopper assembly, which includes a hopper body 1, a hopper cover 2, and a bottom plate 3. The hopper cover 2 is pivotally mounted on the hopper body 1. One end of the bottom plate 3 is fixed to the hopper cover 2, and the other end is elastically connected to the hopper body 1. The hopper body 1 further includes a pull rod 4, a stop rod 5, a torsion spring 9, and a limit block 31 fixed on the bottom plate 3. The pull rod 4 is parallelly mounted on the bottom plate 3 and can move back and forth along the axial direction. The fixed end of the stop rod 5 is mounted on the pull rod 4, and the torsion spring 9 connects the pull rod 4 and the stop rod 5. The hopper assembly further includes a plurality of limit posts 61 near the free end of the stop rod 5. When the hopper cover 2 is unfolded, the bottom plate 3 is used to drive the free end of the stop rod 5 to bypass the lowest point of a certain limit post 61. The resilience of the torsion spring 9 causes the free end of the stop rod 5 to rebound and be limited by the limit post 61, and the fixed end of the stop rod 5 is limited by the limit block 31, thereby fixing the hopper cover 2 at a certain limit angle. When the hopper cover 2 is closed, the pull rod 4 is used to drive the stop rod 5 to release the limit and complete the closing.

[0035] The opening angle of the hopper cover 2 on the hopper body 1 is limited by the hopper assembly. Each limit post 61 is arranged on the moving path of the stop rod 5. The bottom plate 3 includes two plate segments forming a certain angle with each other. The torsion spring 9 connects the stop rod 5 and the pull rod 4. The limit block 31 is mounted on the bottom plate 3. Due to the connection relationship of the torsion spring 9 and the structural design of the bottom plate 3, during the opening process of the hopper cover 2, the bottom plate 3 drives the stop rod 5 to move. When the stop rod 5 contacts a certain limit post 61, the torsion spring 9 is compressed, causing the stop rod 5 to rebound after passing over the lowest point of the limit post 61. The stop rod 5 is limited by the limit post 61 and the limit block 31. Since there are multiple limit posts 61 corresponding to different limit angles, the angle limit of the hopper cover 2 during opening is completed.

[0036] As Figure 6 and Figure 7 shown, specifically, in this embodiment, the torsion spring 9 includes earpieces 91 formed at both ends respectively. The earpieces 91 are sleeved on the stop rod 5. Its function is that after the free end of the stop rod 5 bypasses the lowest point of the limit post 61, the torsion spring 9 quickly rebounds after being compressed and deformed, and drives the stop rod 5 to bounce up and reset through the earpieces 91 at both ends. Then, the hopper cover 2 is slightly loosened, and the hopper cover 2 rotates downward, driving the stop rod 5 to fall and rotate. When the stop rod 5 contacts the limit post 61, due to the action of the limit block 31 on the bottom plate 3, the stop rod 5 cannot continue to fall, keeping the hopper cover 2 in the open state and realizing the limit function.

[0037] As Figure 2 and Figure 7 shown, in a further preferred embodiment, the hopper assembly further includes a limit frame 6 mounted on the hopper body 1, and a plurality of limit posts 61 are fixed on the limit frame 6, corresponding to a plurality of preset limit angles respectively.

[0038] Specifically, in this embodiment, one end of the limit frame 6 is fixed on the hopper body 1, and the other end is an arc structure disposed on the moving path of the stop bar 5. Limit posts 61 are formed at one end of the arc structure of the limit frame 6, and are spaced apart and respectively correspond to a plurality of preset limit angles.

[0039] Specifically, in this embodiment, on the side of each limit post 61 facing the hopper lid 2, a cylindrical sliding surface 611 for facilitating the sliding of the stop bar 5 thereon is formed, and on the side facing away from the hopper lid 2, a flat abutting surface 612 for abutting against the stop bar 5 is formed. In this embodiment, three limit posts 61 are installed, which are the first limit post, the second limit post, and the third limit post in sequence from top to bottom, and respectively correspond to three preset limit angles.

[0040] In a further preferred embodiment, the limit frame 6 includes a mounting section 62 and a bending section 63. The mounting section 62 is fixed on the hopper body 1, the bending section 63 is connected to one end of the mounting section 62, and a plurality of limit posts 61 are sequentially installed on the bending section 63.

[0041] Specifically, in this embodiment, the mounting section 62 is fixed on the hopper body 1 by bolts. The bending section 63 is connected to one end of the mounting section 62 and bends toward the side where the hopper lid 2 is located, being parallel to the curved line formed by the moving path of the stop bar 5. The bending section 63 and the mounting section 62 are respectively arranged in two mutually perpendicular planes, and a plurality of limit posts 61 are all formed on the bending section 63.

[0042] As Figure 2 and Figure 4 shown, in a further preferred embodiment, the stop bar 5 includes two connecting rods 52 arranged in parallel. At one end of each connecting rod 52, a collar 51 is provided, and the other ends are connected to each other.

[0043] Specifically, in this embodiment, the end of the connecting rod 52 with the collar 51 thereon is sleeved on the pull rod 4. The stop bar 5 can rotate around the axis of the pull rod 4. A torsion spring 9 connects the pull rod 4 and the connecting rod 52 of the stop bar 5. The other ends of the connecting rods 52 are connected to each other so that the stop bar 5 forms a substantially U-shaped shape. The end where the connecting rods 52 are connected to each other is used to abut against the limit post 61 and is regarded as the free end of the stop bar 5, and the other end is regarded as the fixed end.

[0044] As Figure 2 and Figure 5 shown, in a further preferred embodiment, the pull rod 4 includes a rod body 41, a pull rod baffle 43 provided at one end of the rod body 41, and a handle 42 installed at the other end of the rod body 41.

[0045] Specifically, in this embodiment, one point of the rod body 41 has an external thread, and the handle 42 has an internal thread for mating connection with the external thread of the rod body 41. The pull rod baffle 43 is installed at the other end of the rod body 41. The radial dimension of the pull rod baffle 43 is larger than the diameter of the rod body 41 to prevent the rest of the devices sleeved on the pull rod 4 from slipping out.

[0046] As Figure 2 and Figure 3 shown, in a further preferred embodiment, a plurality of positioning rings 32 are installed on the bottom plate 3, and both the plurality of positioning rings 32 and the collar 51 are sleeved on the rod body 41.

[0047] Specifically, in this embodiment, there are specifically two positioning rings 32, which are fixedly spaced on the bottom plate 3. The pull rod 4 passes through the two positioning rings 32 for limiting. The positioning rings 32 and the collar 51 are coaxially installed; the limiting block 31 is fixed on the bottom plate 3 and is composed of two mutually perpendicular connecting stop rods 5. One of the baffles is welded to the bottom plate 3 and is perpendicular to the bottom plate 3, and the other baffle is arranged to be substantially parallel to the fixed section of the bending plate, and is used to abut against the stop rod 5 when the hopper cover 2 is opened and closed to a limited position to limit the pivoting angle of the stop rod 5.

[0048] As Figure 7 shown, in a further preferred embodiment, a first axial return spring 10, a second axial return spring 11 and a third axial return spring 12 are also sleeved on the rod body 41. The first axial return spring 10, the second axial return spring 11 and the third axial return spring 12 are arranged at intervals with a plurality of positioning rings 32 in turn. The radial dimension of the pull rod baffle 43 is larger than the inner diameter of the first axial return spring 10.

[0049] Specifically, in this embodiment, there are two through holes on the rod body 41 for the return springs to be constrained and fixed thereto. When installing the rod body 41, the handle 42 needs to be removed so that the rod body 41 passes through the positioning ring 32 in the bottom plate 3 and the collar 51 in the stop rod 5, the return springs and the spring assembly at the same time. There are three return springs. The first axial return spring 10 is installed between the positioning ring 32 on the bottom plate 3 and the pull rod baffle 43. The second axial return spring 11 and the third axial return spring 12 are respectively installed between the collar 51 in the stop rod 5 and the positioning ring 32 on the bottom plate 3. By inserting one end of the second axial return spring 11 and the third axial return spring 12 into the through holes on the pull rod 4, they are fixed to the rod body 41 and move together with the rod body 41.

[0050] In a further preferred embodiment, the handle 42 is used to drive the rod body 41 to move in the axial direction, and the first axial return spring 10, the second axial return spring 11 and the third axial return spring 12 are compressed so that the free end of the stop rod is disengaged from the limit post 61.

[0051] Specifically, in this embodiment, when closing the hopper cover 2, the pull rod 4 is pulled outwards. The first axial return spring 10 is compressed under the restriction of the limit block 31. Since the second axial return spring 11 and the third axial return spring 12 are fixed to the pull rod 4, they move and compress together, pushing the pull rod 4 to move and deviate from the contact surface with the limit post 61, and the hopper cover 2 automatically drops. After the hopper cover 2 is closed, the pull rod 4 is released, and the axial return spring rebounds. Under the restriction of the limit block 31, the pull rod 4 automatically pushes back to its original position.

[0052] In a further preferred embodiment, the hopper assembly further includes an elastomer 7 installed on the hopper body 1. One end of the bottom plate 3 is fixed to the hopper cover 2, and the other end is elastically connected to the hopper body 1 through the elastomer 7.

[0053] As Figure 1 and Figure 2 shown, specifically, in this embodiment, the elastomer 7 is used to assist in pulling the hopper cover 2 to open and close. A spring connecting plate 8 is welded on the hopper body 1. One end of the spring connecting plate 8 is provided with a through hole. The elastomer 7 is specifically a large spring with hooks installed at both ends. One hook is connected to the through hole of the spring connecting plate 8, and the other hook is connected to the bottom plate 3, which is used to provide a pulling force when opening the hopper cover 2 or a buffering force when closing the hopper cover 2.

[0054] The specific working process of the above hopper assembly may include the following operations:

[0055] Step 1: When lifting the hopper cover 2, the bottom plate 3 drives the stop rod 5 to rotate around the pull rod 4 until the free end of the stop rod 5 touches the limit post 61 on the limit frame 6.

[0056] Step 2: Continuing to lift the hopper cover 2, the bottom plate 3 continues to drive the stop rod 5 to rotate around the pull rod 4 as the center point. At the same time, the stop rod 5 itself rotates around the center line of the pull rod 4 under the reaction force of the first limit post until the free end of the stop rod 5 bypasses the lowest end of the first limit post. Under the action of the torsion spring 9, the stop rod 5 returns to its original position. After releasing the hopper cover 2, the stop rod 5 will contact the plane of the first limit post under the action of the self-weight of the hopper. And because the limit block 31 is fixed on the bottom plate 3, one side of the stop rod 5 abuts against the first limit post, and the other side abuts against the limit block 31, and it cannot fall, thus realizing the limiting function.

[0057] Step 3: Similarly, the hopper cover 2 continues to unfold to the second limit angle and the third limit angle.

[0058] Step 4: When it is necessary to close the hopper cover 2, the pull rod 4 is pulled outwards, and the stop rod 5 deviates from the contact with the limit post 61 accordingly. The hopper cover 2 is buffered and closed under the action of the elastomer 7. After releasing the handle 42, under the rebounding force of the return spring, the pull rod 4 and the stop rod 5 return to their original positions.

[0059] Another embodiment of the present utility model further provides an engineering vehicle, including the hopper assembly described in the above embodiment.

[0060] For the hopper assembly and the engineering vehicle provided by the present utility model, with the bottom plate 3 fixed on the hopper cover, the pull rod 4 installed in the bottom plate 3 and capable of moving back and forth along the axial direction, and the stop rod 5 installed on the pull rod 4 move together with the hopper cover 2. The bottom plate 3 drives the free end of the stop rod 5 to bypass the lowest point of a certain limit post 61, and the resilience of the torsion spring 9 causes the free end of the stop rod 5 to rebound and abut against the limit frame 6 fixed on the hopper body 1, completing the multi-angle limit of the hopper cover 2 to adapt to various usage situations. Moreover, an elastomer 7 is also provided, which can play an auxiliary traction role when the hopper cover 2 is opened and closed, having a labor-saving effect and improving the operation convenience for the user.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0062] In this article, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not explicitly listed. As described above, only the specific embodiments of the present utility model are provided, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art in the technical field disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A hopper assembly, characterized in that: The hopper comprises a hopper body (1), a hopper cover (2), and a bottom plate (3); the hopper cover (2) is mounted on the hopper body (1) in an openable and closable manner; one end of the bottom plate (3) is fixed on the hopper cover (2); and the other end is elastically connected to the hopper body (1); It also includes a pull rod (4), a stop rod (5), a torsion spring (9), and a limit block (31) fixed on the bottom plate (3); the pull rod (4) is mounted parallel to the bottom plate (3) and can move back and forth along the axial direction; the fixed end of the stop rod (5) is mounted on the pull rod (4), and the torsion spring (9) connects the pull rod (4) and the stop rod (5); the hopper assembly also includes a plurality of limit columns (61) close to the free end of the stop rod (5); When the hopper cover (2) is unfolded, the bottom plate (3) is used to drive the free end of the baffle rod (5) to bypass the lowest point of a certain limiting column (61), and the rebound force of the torsion spring (9) causes the free end of the baffle rod (5) to rebound and be limited by the limiting column (61), and the fixed end of the baffle rod (5) is limited by the limiting block (31), thereby fixing the hopper cover (2) at a certain limiting angle; when the hopper cover (2) is closed, the pull rod (4) is used to drive the baffle rod (5) to release the limit and complete the closing.

2. The hopper assembly according to claim 1, characterized in that: The hopper assembly further comprises a limiting frame (6) mounted on the hopper body (1), and the plurality of limiting columns (61) are fixed on the limiting frame (6) and respectively correspond to a plurality of preset limiting angles.

3. The hopper assembly according to claim 2, characterized in that: The limiting frame (6) comprises a mounting section (62) and a bending section (63), the mounting section (62) being fixed on the hopper body (1), the bending section (63) being connected to one end of the mounting section (62), and the plurality of limiting columns (61) being sequentially mounted on the bending section (63).

4. The hopper assembly according to claim 1, characterized in that: The blocking rod (5) comprises two connecting rods (52) arranged in parallel, one end of each connecting rod (52) being provided with a collar (51) and the other ends being connected to each other.

5. The hopper assembly according to claim 4, characterized in that: The pull rod (4) comprises a rod body (41), a pull rod baffle (43) arranged at one end of the rod body (41), and a handle (42) installed at the other end of the rod body (41).

6. The hopper assembly according to claim 5, characterized in that: A plurality of positioning rings (32) are mounted on the bottom plate (3), and the plurality of positioning rings (32) and the sleeve ring (51) are sleeved on the rod body (41).

7. The hopper assembly according to claim 6, characterized in that: The rod body (41) is also sleeved with a first axial return spring (10), a second axial return spring (11) and a third axial return spring (12); the first axial return spring (10), the second axial return spring (11) and the third axial return spring (12) are sequentially spaced apart from a plurality of positioning rings (32); and the radial dimension of the pull rod baffle (43) is greater than the inner diameter of the first axial return spring (10).

8. The hopper assembly according to claim 7, characterized in that: The handle (42) is used to drive the rod body (41) to move in the axial direction, and the first axial return spring (10), the second axial return spring (11) and the third axial return spring (12) are compressed to disengage the free end of the blocking rod (5) from the limiting column (61).

9. The hopper assembly according to claim 1, characterized in that: One end of the bottom plate (3) is fixed to the hopper cover (2); the other end is elastically connected to the hopper body (1) via an elastic body (7).

10. An engineering vehicle, characterized in that: The engineering vehicle comprises the hopper assembly according to any one of claims 1-9.

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