Hinge mechanism, hopper and engineering equipment

Abstract

The utility model provides a hinge mechanism, a hopper and engineering equipment. The hinge mechanism comprises a fixed seat; the rotating assembly is rotationally connected with the fixed seat; a plurality of limiting structures are arranged on the limiting piece; and one end of the positioning piece is rotationally connected with the rotating assembly, the other end of the positioning piece can be matched with the limiting structures, the positioning piece is used for limiting the rotating assembly at the multiple rotating angles, and the multiple limiting structures correspond to the multiple rotating angles correspondingly. The hinge mechanism provided by the utility model can limit the rotating assembly when the rotating assembly rotates to different positions. In other words, the rotating assembly can rotate to different angles relative to the fixing base, the multiple limiting structures are arranged to be matched with the other end of the positioning piece, the rotating assembly can be limited at different positions, and therefore multi-angle adjustment of the hinge mechanism is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering equipment, and in particular, to a hinge mechanism, a hopper and an engineering equipment. Background Art

[0002] Currently, a hopper generally includes a hopper body for accommodating materials and a hopper cover covering the hopper body. The hopper cover is hinged to the hopper body through a hinge mechanism to adjust and lock the opening and closing angle of the hopper cover through the hinge mechanism. However, in the related art, the actually lockable angle of the hopper cover is limited, and multi-angle adjustment cannot be achieved.

[0003] Therefore, how to provide a hinge mechanism that can achieve multi-angle adjustment has become an urgent technical problem to be solved. Summary of the Utility Model

[0004] The utility model aims to at least solve the problem that the hinge mechanism in the prior art or related art cannot achieve multi-angle adjustment.

[0005] Therefore, a first aspect of the utility model provides a hinge mechanism.

[0006] A second aspect of the utility model provides a hopper.

[0007] A third aspect of the utility model provides an engineering equipment.

[0008] To achieve the above object, a first aspect of the utility model provides a hinge mechanism, including: a fixed seat; a rotating assembly rotatably connected to the fixed seat; a limiting member provided with a plurality of limiting structures thereon; a positioning member, one end of the positioning member is rotatably connected to the rotating assembly, and the other end of the positioning member can cooperate with the limiting structures to limit the rotating assembly at a plurality of rotating angles, and the plurality of limiting structures respectively correspond to the plurality of rotating angles.

[0009] According to the hinge mechanism provided by the present utility model, it includes a fixed seat, a rotating assembly, a positioning member, and a limiting member. The rotating assembly is arranged on the fixed seat and can rotate relative to the fixed seat. One end of the positioning member is rotatably connected to the rotating assembly and can move freely when the rotating assembly rotates, avoiding the situation where the rotating assembly drives the positioning member to rotate and interfere with other parts. The other end of the positioning member can cooperate with one of the multiple limiting structures on the limiting member and can limit the rotating assembly when the rotating assembly rotates to different positions. That is, the rotating assembly can rotate relative to the fixed seat to multiple angles, and by setting multiple limiting structures corresponding to multiple rotating angles respectively, the rotating assembly can be limited at different rotating angles, thus realizing the multi-angle adjustment of the hinge mechanism. For example, when the rotating assembly is at the first rotating angle, the other end of the positioning member cooperates with the first limiting structure, and when the rotating assembly is at the second rotating angle, the other end of the positioning member cooperates with the second limiting structure, thus realizing the multi-gear adjustment of the hinge mechanism.

[0010] Among them, one end and the other end of the positioning member can be opposite ends. The rotational connection can be a hinge connection.

[0011] In addition, the hinge mechanism provided by this application can also have the following additional technical features:

[0012] In some embodiments, optionally, the rotating assembly includes: a rotating seat rotatably connected to the fixed seat, and one end of the rotating seat is rotatably connected to one end of the positioning member; a connecting member arranged at the other end of the rotating seat for connecting the member to be rotated.

[0013] In this embodiment, the rotating assembly includes a rotating seat and a connecting member. The rotating seat is rotatably connected to the fixed seat, one end of the rotating seat is rotatably connected to one end of the positioning member, and the connecting member is arranged at the other end of the rotating seat. In this way, the connecting member and the positioning member can rotate relative to the rotating shaft of the rotating seat. The connecting member can connect the member to be rotated, enabling the member to be rotated through this hinge mechanism and enabling the member to be rotated through the hinge mechanism to achieve multi-angle adjustment.

[0014] In some embodiments, optionally, the rotating assembly further includes: a rotating rod connected to the other end of the rotating seat, and the connecting member is arranged on the rotating rod.

[0015] In this embodiment, the rotating assembly further includes a rotating rod. The rotating rod is connected to the other end of the rotating seat, and the connecting member is arranged on the rotating rod. By connecting the rotating seat and the connecting member through the rotating rod, the connecting member can be set in various forms, thus facilitating the connection between the connecting member and the member to be rotated.

[0016] In some embodiments, optionally, the hinge mechanism further includes: an elastic member, one end of the elastic member is connected to one end of the rotating seat; a fixing member, the fixing member is provided with a first connection structure and a second connection structure, and the other end of the elastic member can be connected to the first connection structure or the second connection structure to adjust the deformation amount of the elastic member.

[0017] In this embodiment, the hinge mechanism further includes an elastic member and a fixing member. One end of the elastic member is connected to one end of the rotating seat, and the other end of the elastic member is connected to the first connection structure and the second connection structure on the fixing member. With this arrangement, by connecting one end of the rotating seat to the fixing member through the elastic member, it is possible to provide a certain amount of assistance for the rotation of the rotating assembly when it rotates. Especially when the weight of the component to be rotated is large and the rotation is difficult, the role of the elastic member is particularly obvious. At the same time, by providing two connection structures, different deformations of the elastic member can be achieved, and thus different elastic forces will be generated, so that the elastic force of the elastic member can be adjusted according to the actual situation to meet the actual use requirements.

[0018] In some embodiments, optionally, there are two rotating seats, and the two rotating seats are respectively arranged at both ends of the rotating rod.

[0019] In this embodiment, two rotating seats can be provided and the two rotating seats are respectively arranged at both ends of the rotating rod. With this arrangement, by respectively arranging a rotating seat at both ends of the rotating rod, the rotating rod can be arranged more stably, improving the stability of the hinge mechanism.

[0020] In some embodiments, optionally, the elastic member includes a first elastic member and a second elastic member. One end of the first elastic member is connected to one end of one rotating seat, and the other end of the first elastic member is connected to the first connection structure or the second connection structure on the fixing member; the limiting member is provided with a first connection structure and a second connection structure, and one end of the second elastic member is connected to one end of the other rotating seat, and the other end of the second elastic member is connected to the first connection structure or the second connection structure on the limiting member.

[0021] In this embodiment, the elastic member includes a first elastic member and a second elastic member. One end of the first elastic member is connected to one end of one rotating seat, and the other end of the first elastic member is connected to the first connection structure or the second connection structure on the fixing member. The limiting member is provided with a first connection structure and a second connection structure, and the connection structures here and the connection structures on the fixing member can be the same connection structures. One end of the second elastic member is connected to one end of the other rotating seat, and the other end of the second elastic member is connected to the first connection structure or the second connection structure on the limiting member. It can be understood that in this application, when there are two rotating seats, two elastic members are also provided, improving the stability of the hinge mechanism. Connecting the elastic members in two connection ways meets the use requirements in different situations.

[0022] In some embodiments, optionally, the fixing member and the limiting member are of an integral structure.

[0023] In this embodiment, the fixing member and the limiting member may be of an integral structure. That is, a first connection structure and a second connection structure are provided on the limiting member, so that the layout space of the parts can be saved.

[0024] In some embodiments, optionally, the elastic member includes a helical spring, an air spring, an oil-gas spring, and a rubber spring.

[0025] In some embodiments, optionally, the hinge mechanism further includes: a locking member disposed on the rotating rod for limiting the rotation of the rotating assembly; when the rotating assembly rotates to a first preset angle, the locking member abuts against the fixed seat.

[0026] In this embodiment, the hinge mechanism further includes a locking member. The locking member is disposed on the rotating rod and can limit the rotation of the rotating assembly. Specifically, when the rotating assembly rotates to the first preset angle, the locking member abuts against the fixed seat, so that the angle of the rotating assembly can be limited.

[0027] In some embodiments, optionally, the first preset angle may be the maximum rotation angle.

[0028] In this embodiment, by limiting the maximum rotation angle, it can be ensured that the rotating assembly does not exceed the maximum rotation angle, preventing damage to the hinge mechanism.

[0029] In some embodiments, optionally, the limiting member includes: a limiting tooth plate, and a plurality of limiting teeth are provided on the limiting tooth plate, and the limiting teeth are limiting structures.

[0030] In this embodiment, the limiting member may be a limiting tooth plate. A plurality of limiting teeth are provided on the limiting tooth plate, and the limiting teeth are the limiting structures. By setting the limiting structure as the limiting teeth, when the rotating assembly rotates, the positioning member can continuously move on the plurality of limiting teeth, facilitating the cooperation of the other end of the positioning member with one of the limiting teeth.

[0031] In some embodiments, optionally, the positioning member includes: a first positioning rod, one end of the first positioning rod is rotatably connected to the rotating assembly; a second positioning rod, disposed at the other end of the first positioning rod, is disposed at a second preset angle with respect to the first positioning rod, and the second positioning rod can be clamped on the limiting teeth.

[0032] In this embodiment, the positioning member includes a first positioning rod and a second positioning rod. One end of the first positioning rod is rotatably connected to the rotating assembly, the second positioning rod is disposed at one end of the first positioning rod, is disposed at a second preset angle with respect to the first positioning rod, and the second positioning rod can be clamped on the limiting teeth, thereby limiting the rotating assembly.

[0033] Among them, the first positioning rod and the second positioning rod can be arranged in a T shape.

[0034] The second aspect of the technical solution of the present utility model provides a hopper, including a hopper body; a hopper cover disposed on the hopper body; the hinge mechanism in any one of the technical solutions of the first aspect, wherein the fixed seat and the limiting member in the hinge mechanism are connected to the hopper body, and the rotating assembly is connected to the hopper cover.

[0035] The hopper provided according to the present utility model includes a hopper body, a hopper cover, and the hinge mechanism in any one of the technical solutions of the first aspect, and the hopper cover is disposed on the hopper body. The fixed seat in the hinge mechanism is connected to the hopper body, the limiting member is also connected to the hopper body, and the rotating assembly is connected to the hopper cover. Since it includes the hinge mechanism in any one of the technical solutions of the first aspect, therefore, this hopper has all the beneficial effects of the hinge mechanism in any one of the technical solutions of the first aspect, which will not be elaborated herein.

[0036] In some embodiments, optionally, the engineering equipment includes work vehicles such as heavy trucks, trailers, excavators, roadheader loaders, bulldozers, rollers, and concrete pump trucks.

[0037] The third aspect of the technical solution of the present utility model provides an engineering equipment, including the hinge mechanism in any one of the technical solutions of the first aspect, and / or the hopper in any one of the technical solutions of the second aspect.

[0038] The engineering equipment provided according to the present utility model includes the hinge mechanism in any one of the technical solutions of the first aspect, and / or the hopper in any one of the technical solutions of the second aspect. Since it includes the hinge mechanism in any one of the technical solutions of the first aspect, and / or the hopper in any one of the technical solutions of the second aspect, therefore, this engineering equipment has all the beneficial effects of the hinge mechanism in any one of the technical solutions of the first aspect, and / or the hopper in any one of the technical solutions of the second aspect, which will not be elaborated herein.

[0039] The additional aspects and advantages of the present utility model will become obvious in the following description part, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0041] Figure 1 is a schematic structural diagram of a hinge mechanism according to an embodiment of the present utility model;

[0042] Figure 2 is a schematic structural diagram of a hopper according to an embodiment of the present utility model;

[0043] Figure 3It is a schematic structural diagram of an engineering device according to an embodiment of the present utility model.

[0044] Among them, Figures 1 to 3 The corresponding relationship between the reference numerals and the component names in

[0045] 1 hinge mechanism, 10 fixed seat, 11 rotating assembly, 112 rotating seat, 114 rotating rod, 116 connecting piece, 12 positioning piece, 122 first positioning rod, 124 second positioning rod, 13 limiting piece, 132 limiting structure, 134 first connecting structure, 136 second connecting structure, 138 limiting toothed plate, 1382 limiting tooth, 14 elastic piece, 142 first elastic piece, 144 second elastic piece, 15 locking piece, 16 fixing piece, 2 hopper, 22 hopper body, 24 hopper cover, 3 engineering device, 4 piece to be rotated. Detailed implementation manners

[0046] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0047] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0048] Next, refer to Figures 1 to 3 Describe the hinge mechanism, hopper and engineering device proposed according to some embodiments of the present application.

[0049] In an embodiment of the present application, as Figure 1 shown, a hinge mechanism 1 is provided, including a fixed seat 10, a rotating assembly 11, a positioning piece 12 and a limiting piece 13. The rotating assembly 11 is rotatably connected to the fixed seat 10. A plurality of limiting structures 132 are provided on the limiting piece 13. One end of the positioning piece 12 is rotatably connected to the rotating assembly 11, and the other end of the positioning piece 12 can cooperate with the limiting structure 132 to limit the rotating assembly 11 at a plurality of rotating angles, and the plurality of limiting structures 132 respectively correspond to the plurality of rotating angles.

[0050] According to the hinge mechanism 1 provided by the present utility model, it includes a fixed seat 10, a rotating assembly 11, a positioning member 12 and a limiting member 13. The rotating assembly 11 is arranged on the fixed seat 10 and can rotate relative to the fixed seat 10. One end of the positioning member 12 is rotatably connected to the rotating assembly 11 and can move freely when the rotating assembly 11 rotates, avoiding the situation where the rotating assembly 11 drives the positioning member 12 to rotate and interfere with other parts. The other end of the positioning member 12 can cooperate with one of the multiple limiting structures 132 on the limiting member and can limit the rotating assembly 11 when the rotating assembly 11 rotates to different positions. That is, the rotating assembly 11 can rotate relative to the fixed seat 10 to multiple different angles, and by setting multiple limiting structures 132 corresponding to multiple rotating angles respectively, the rotating assembly 11 can be limited at different rotating angles, thus realizing the multi-angle adjustment of the hinge mechanism 1. For example, when the rotating assembly 11 is in the first position, the other end of the positioning member 12 cooperates with the first limiting structure 132, and when the rotating assembly 11 is in the second position, the other end of the positioning member 12 cooperates with the second limiting structure 132, thus realizing the multi-gear adjustment of the hinge mechanism 1.

[0051] Wherein, one end and the other end of the positioning member 12 can be opposite ends. The rotational connection can be a hinge connection.

[0052] In some embodiments, optionally, the rotating assembly 11 includes: a rotating seat 112, rotatably connected to the fixed seat 10, and one end of the rotating seat 112 is rotatably connected to one end of the positioning member 12; a connecting member 116, arranged at the other end of the rotating seat 112 for connecting the member to be rotated 4.

[0053] In this embodiment, the rotating assembly 11 includes a rotating seat 112 and a connecting member 116. The rotating seat 112 is rotatably connected to the fixed seat 10, one end of the rotating seat 112 is rotatably connected to one end of the positioning member 12, and the connecting member 116 is arranged at the other end of the rotating seat 112. In this way, the connecting member 116 and the positioning member 12 can rotate relative to the axis of the rotating seat 112. The connecting member 116 can connect the member to be rotated 4, so that the member to be rotated 4 can rotate through this hinge mechanism 1, and the member to be rotated 4 can realize multi-angle adjustment through the hinge mechanism 1.

[0054] In some embodiments, optionally, the rotating assembly 11 further includes: a rotating rod 114, connected to the other end of the rotating seat 112, and the connecting member 116 is arranged on the rotating rod 114.

[0055] In this embodiment, the rotating assembly 11 further includes a rotating rod 114. The rotating rod 114 is connected to the other end of the rotating seat 112, and the connecting member 116 is disposed on the rotating rod 114. By connecting the rotating seat 112 and the connecting member 116 together through the rotating rod 114, the connecting member 116 can be set in various forms, facilitating the connection between the connecting member 116 and the component to be rotated 4.

[0056] In some embodiments, optionally, the hinge mechanism 1 further includes: an elastic member 14, one end of the elastic member 14 is connected to one end of the rotating seat 112, a fixing member 16, and a first connection structure 134 and a second connection structure 136 are provided on the fixing member 16. The other end of the elastic member 14 can be connected to the first connection structure 134 or the second connection structure 136 to adjust the deformation amount of the elastic member 14.

[0057] In this embodiment, the hinge mechanism 1 further includes an elastic member 14 and a fixing member 16. One end of the elastic member 14 is connected to one end of the rotating seat 112, and the other end of the elastic member 14 is connected to the first connection structure 134 and the second connection structure 136 on the fixing member 16. With this arrangement, by connecting one end of the rotating seat 112 to the fixing member 16 through the elastic member 14, when the rotating assembly 11 rotates, a certain amount of assistance can be provided for this rotation. Especially when the weight of the component to be rotated 4 is relatively large and the rotation is difficult, the role played by the elastic member 14 is particularly obvious. At the same time, by providing two connection structures, the elastic member 14 can achieve different deformations, thus generating different elastic forces, and the elastic force of the elastic member 14 can be adjusted according to the actual situation to meet the actual use requirements.

[0058] In some embodiments, optionally, the elastic member 14 includes a helical spring, an air spring, an oil-gas spring, and a rubber spring.

[0059] In some embodiments, optionally, there are two rotating seats 112, and the two rotating seats 112 are respectively disposed at both ends of the rotating rod 114.

[0060] In this embodiment, two rotating seats 112 can be provided and the two rotating seats 112 are respectively disposed at both ends of the rotating rod 114. With this arrangement, by respectively providing a rotating seat 112 at both ends of the rotating rod 114, the rotating rod 114 can be set more stably, improving the stability of the hinge mechanism.

[0061] In some embodiments, optionally, the elastic member 14 includes a first elastic member 142 and a second elastic member 144. One end of the first elastic member 142 is connected to one end of a rotating seat 112, and the other end of the first elastic member 142 is connected to the first connection structure 134 or the second connection structure 136 on the fixing member 16; the limiting member 13 is provided with the first connection structure 134 and the second connection structure 136. One end of the second elastic member 144 is connected to one end of the other rotating seat 112, and the other end of the second elastic member 144 is connected to the first connection structure 134 or the second connection structure 136 on the limiting member 13.

[0062] In this embodiment, the elastic member 14 includes a first elastic member 142 and a second elastic member 144. One end of the first elastic member 142 is connected to one end of a rotating seat 112, and the other end of the first elastic member 142 is connected to the first connection structure 134 or the second connection structure 136 on the fixing member 16. The limiting member 13 is provided with the first connection structure 134 and the second connection structure 136. One end of the second elastic member 144 is connected to one end of the other rotating seat 112, and the other end of the second elastic member 144 is connected to the first connection structure 134 or the second connection structure 136 on the limiting member 13. It can be understood that when there are two rotating seats 112 in the present application, two elastic members 14 are also provided, which improves the stability of the hinge mechanism. The elastic member 14 is connected in two connection ways, meeting the use requirements in different situations.

[0063] In some embodiments, optionally, the fixing member 16 and the limiting member 13 are of an integral structure.

[0064] In this embodiment, the fixing member 16 and the limiting member 13 can be of an integral structure. That is, the limiting member 13 is provided with the first connection structure 134 and the second connection structure 136, which can save the layout space of the parts.

[0065] In some embodiments, optionally, the hinge mechanism 1 further includes: a locking member 15 disposed on the rotating rod 114 for limiting the rotation of the rotating assembly 11; when the rotating assembly 11 rotates to a first preset angle, the locking member 15 abuts against the fixed seat 10.

[0066] In this embodiment, the hinge mechanism 1 further includes a locking member 15. The locking member 15 is disposed on the rotating rod 114 and can limit the rotation of the rotating assembly 11. Specifically, when the rotating assembly 11 rotates to the first preset angle, the locking member 15 abuts against the fixed seat 10, thereby limiting the angle of the rotating assembly 11.

[0067] In some embodiments, optionally, the first preset angle can be the maximum rotation angle.

[0068] In this embodiment, by limiting the maximum rotation angle, it can be ensured that the rotating assembly 11 does not exceed the maximum rotation angle, preventing the hinge mechanism 1 from being damaged.

[0069] In some embodiments, optionally, the limiting member 13 includes: a limiting toothed plate 138, on which a plurality of limiting teeth 1382 are provided, and the limiting teeth 1382 are the limiting structures 132.

[0070] In this embodiment, the limiting member 13 can be the limiting toothed plate 138. A plurality of limiting teeth 1382 are provided on the limiting toothed plate 138, and the limiting teeth 1382 are the limiting structures 132. By setting the limiting structure 132 as the limiting teeth 1382, when the rotating assembly 11 rotates, the positioning member 12 can continuously move on the plurality of limiting teeth 1382, facilitating the cooperation between the other end of the positioning member 12 and one of the limiting teeth 1382.

[0071] In some embodiments, optionally, the positioning member 12 includes: a first positioning rod 122, one end of the first positioning rod 122 is rotatably connected to the rotating assembly 11; a second positioning rod 124, disposed at the other end of the first positioning rod 122, and is disposed at a second preset angle with respect to the first positioning rod 122, and the second positioning rod 124 can be clamped on the limiting teeth 1382.

[0072] In this embodiment, the positioning member 12 includes a first positioning rod 122 and a second positioning rod 124. One end of the first positioning rod 122 is rotatably connected to the rotating assembly 11, the second positioning rod 124 is disposed at one end of the first positioning rod 122, and is disposed at a second preset angle with respect to the first positioning rod 122, and the second positioning rod 124 can be clamped on the limiting teeth 1382, thereby limiting the rotating assembly 11.

[0073] Wherein, the first positioning rod 122 and the second positioning rod 124 may be arranged in a T shape.

[0074] As Figure 2 shown, an embodiment of the second aspect of the present invention provides a hopper 2, including a hopper body 22; a hopper cover 24, disposed on the hopper body 22; the hinge mechanism 1 in any one of the embodiments of the first aspect, the fixed seat 10 and the limiting member 13 in the hinge mechanism 1 are connected to the hopper body 22, and the rotating assembly 11 is connected to the hopper cover 24.

[0075] According to the hopper 2 provided by the present utility model, it includes a hopper body 22, a hopper cover 24, and the hinge mechanism 1 in any of the embodiments of the first aspect. The hopper cover 24 is arranged on the hopper body 22. The fixed seat 10 and the limiting member 13 in the hinge mechanism 1 are connected to the hopper body 22, and the rotating assembly 11 is connected to the hopper cover 24. Since it includes the hinge mechanism 1 in any of the embodiments of the first aspect, therefore, the hopper 2 has all the beneficial effects of the hinge mechanism 1 in any of the embodiments of the first aspect, which will not be elaborated here.

[0076] In some embodiments, optionally, the hinge mechanism 1 is fixedly connected to the hopper cover 24 through two bolts at the top and rear of the hopper cover 24.

[0077] In some embodiments, optionally, the rotating assembly 11 is connected to the limiting member 13 through a tension spring to achieve assistance, and the tension of the tension spring is adjustable.

[0078] In some embodiments, optionally, one end of the positioning rod is connected to the rotating assembly 11, and the other end is stuck in the limiting tooth plate 138 on the side, and multi-stage angle adjustment can be achieved within the range of 0° - 90°.

[0079] In some embodiments, optionally, the rotating assembly 11 is fixed above the hopper cover 24 through two support rods (connecting members 116) at the top and is fixedly connected to the hopper cover 24 through two bolts at the rear, so that the hopper cover 24 and the hinge rod group (rotating assembly 11) form an integral body, and this structure has stronger support.

[0080] In some embodiments, optionally, the hinge rod group is connected to the hinge seat (limiting member 13) through a tension spring, and the tension of the spring required is calculated according to the torque of opening the hopper cover 24, and a steel tension spring is used to solve the problem that the air spring is easily damaged due to small tension.

[0081] The working principle of the hinge mechanism 1 will be introduced below in combination with the hopper 2:

[0082] The hopper cover 24 is connected to the hopper body 22 through the hinge mechanism 1. The hopper cover 24 can be opened and closed relative to the hopper body 22 and the opening angle can be locked. The designed opening angle range is greater than or equal to 0° and less than or equal to 90°.

[0083] The hinge rod group (rotating assembly 11) is connected to the hopper cover 24 through two bolt fixing points at the top and rear positions. The hinge seat II (fixed seat 10), hinge seat IV (limiting part 13), hinge seat I (fixed seat 10), and hinge seat III (fixing part 16) are fixed on the hopper body 22 by bolts. Hinge seat I and hinge seat II form a group, and hinge seat III and hinge seat IV form a group. There are pin shafts on hinge seat I and hinge seat II, which are hinged to the holes on the hinge rod group, and the hinge rod group can rotate around the pin shaft. One end of the positioning rod is hinged to the hinge rod group, and the other end is fixed in the side tooth plate of hinge seat IV and can slide up and down along the tooth plate to select different gears to fix the opening angle of the hopper cover 24 and the hinge rod group. There are two tension springs in total. The upper ends are fixed to the hinge rod group by bolts, and the other ends are fixed to the positioning hooks at the lower parts of hinge seat III and hinge seat IV. Each hinge seat has two positions (the first connection structure 134 and the second connection structure 136) for the positioning hook, which can be used to adjust the tension of the spring. When the hopper cover 24 is closed (opening angle 0°), the spring is in the maximum stretched state, providing the maximum assistance to the operator opening the hopper cover 24. When the hopper cover 24 reaches the maximum opening angle of 90°, the tension of the spring is the smallest, but there is still a certain initial tension to maintain the opening angle of the hopper cover 24. Buffer pads (locking parts 15) are installed at both ends of the hinge rod group. When the maximum opening angle is reached, the buffer pads contact hinge seat I and hinge seat II to limit the maximum opening angle and keep the hopper cover 24 stable.

[0084] The advantages of this application are as follows:

[0085] 1. The tension spring assistance structure is simple, highly reliable, convenient to adjust the tension and easy to disassemble and repair.

[0086] 2. The opening and closing angles of the cover plate can be adjusted and locked in multiple gears.

[0087] 3. The hinge mechanism is fixed at the top and rear of the cover plate, with good stability.

[0088] The key points of this application are:

[0089] 1. The tension spring assistance mechanism, which can adjust the tension.

[0090] 2. The tooth plate structure for adjusting the angle in multiple gears.

[0091] 3. The four-point fixing method of the hopper cover plate.

[0092] In some embodiments, optionally, the engineering equipment 3 includes work vehicles such as heavy trucks, trailers, excavators, roadheader loaders, bulldozers, rollers, and concrete pump trucks.

[0093] Such as Figure 3As shown in the figure, an embodiment of the third aspect of the present utility model provides a construction equipment 3, including the hinge mechanism 1 in any one of the embodiments of the first aspect, and / or the hopper 2 in any one of the embodiments of the second aspect.

[0094] The construction equipment 3 provided by the present utility model includes the hinge mechanism 1 in any one of the embodiments of the first aspect, and / or the hopper 2 in any one of the embodiments of the second aspect. Since it includes the hinge mechanism 1 in any one of the embodiments of the first aspect, and / or the hopper 2 in any one of the embodiments of the second aspect. Therefore, the construction equipment 3 has all the beneficial effects of the hinge mechanism 1 in any one of the embodiments of the first aspect, and / or the hopper 2 in any one of the embodiments of the second aspect, which will not be elaborated here.

[0095] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral 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 in the present utility model can be understood according to specific situations.

[0096] In the description of this specification, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0097] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0098] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hinge mechanism, characterized in that: include: Fixed seat; A rotating assembly, rotatably connected to the fixing seat; A limiting member, wherein a plurality of limiting structures are arranged on the limiting member; A positioning member, one end of which is rotatably connected to the rotating assembly, and the other end of which can cooperate with the limiting structure to limit the rotating assembly at multiple rotation angles, and the multiple limiting structures respectively correspond to the multiple rotation angles.

2. The hinge mechanism according to claim 1, characterized in that: The rotating assembly comprises: A rotating seat, rotatably connected to the fixed seat, one end of the rotating seat being rotatably connected to one end of the positioning member; The connecting piece is arranged at the other end of the rotating seat and is used for connecting the piece to be rotated.

3. The hinge mechanism according to claim 2, characterized in that: The rotating assembly also includes: The rotating rod is connected to the other end of the rotating seat, and the connecting member is arranged on the rotating rod.

4. The hinge mechanism according to claim 3, characterized in that: Also includes: An elastic member, one end of which is connected to one end of the rotating seat; A fixing member is provided with a first connecting structure and a second connecting structure, and the other end of the elastic member can be connected to the first connecting structure or the second connecting structure to adjust the deformation amount of the elastic member.

5. The hinge mechanism according to claim 4, characterized in that: The rotating seats include two, and the two rotating seats are respectively arranged at two ends of the rotating rod.

6. The hinge mechanism according to claim 5, characterized in that: The elastic member includes a first elastic member and a second elastic member, one end of the first elastic member is connected to one end of one of the rotating seats, and the other end of the first elastic member is connected to the first connecting structure or the second connecting structure on the fixing member; The first connection structure and the second connection structure are provided on the limiting member, one end of the second elastic member is connected to one end of the other rotating seat, and the other end of the second elastic member is connected to the first connection structure or the second connection structure on the limiting member.

7. The hinge mechanism according to claim 3, characterized in that: Also includes: A locking member, disposed on the rotating rod, for limiting the rotation of the rotating assembly; When the rotating assembly rotates to a first preset angle, the locking member abuts against the fixing seat.

8. The hinge mechanism according to any one of claims 1 to 7, characterized in that: The limiting member comprises: A limiting tooth plate, wherein a plurality of limiting teeth are arranged on the limiting tooth plate, and the limiting teeth are the limiting structure.

9. The hinge mechanism according to claim 8, characterized in that: The positioning member comprises: a first positioning rod, one end of which is rotatably connected to the rotating assembly; The second positioning rod is arranged at the other end of the first positioning rod and is arranged at a second preset angle with the first positioning rod. The second positioning rod can be clamped on the limiting tooth.

10. A hopper, characterized in that: include: Hopper body; A hopper cover, disposed on the hopper body; According to any one of claims 1 to 9, the fixed seat and the limit member in the hinge mechanism are connected to the hopper body, and the rotating assembly is connected to the hopper cover.

11. An engineering equipment, characterized in that: include: The hinge mechanism according to any one of claims 1 to 9; and / or The hopper as claimed in claim 10.

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