Damping hinge and working equipment

Abstract

The invention relates to the field of damping hinges, and discloses a damping hinge and operation equipment. A second seat body; the rotating mechanism comprises a rotating shaft, and the rotating shaft is rotatably connected with the first seat body in a penetrating manner and fixedly connected with the second seat body in a penetrating manner, so that the second seat body can rotate relative to the first seat body; and the damping mechanism comprises a rotating disc and elastic crimping structures, the rotating disc is fixed to the rotating shaft in a penetrating and sleeving mode, and the elastic crimping structures are arranged on the radial outer side of the rotating shaft at intervals and elastically crimped between the first base body and the disc face of the rotating disc. The damping hinge can form a limiting effect on the long-arm structure when the long-arm structure is connected, so that the long-arm structure is kept in a hovering state, the reliability of the damping hinge is improved, the application range is widened, for example, the damping hinge can be used for being connected with a rearview mirror assembly of operation equipment such as a tractor, and the application range is widened. The risk that the rearview mirror assembly shakes can be effectively reduced, and normal operation is prevented from being affected.

Description

Technical Field

[0001] The present application belongs to the technical field of damping hinges, and specifically relates to a damping hinge and operating equipment. Background Art

[0002] The damping hinge is a common connection mechanism. When the existing damping hinge is connected to a long arm structure, the damping force provided by the damping hinge is usually insufficient to effectively maintain the position of the long arm structure, and the long arm structure is prone to shaking, which will cause adverse effects in some application scenarios. For example, in a tractor, the rearview mirror is generally connected to the damping hinge on the side of the cab through a long arm. When the damping hinge cannot maintain the position of the long arm, it will cause the rearview mirror to shake, thus affecting normal operation. Therefore, in order to improve the reliability of the damping hinge when connecting long arm structures, it is necessary to optimize its design. Summary of the invention

[0003] The purpose of this application is to provide a damping hinge and operating equipment, which can effectively maintain the position stability of a long arm structure when the damping hinge is connected to a long arm structure, improve the reliability of the damping hinge, and broaden its application scenarios.

[0004] In order to achieve the above-mentioned object, the present application provides a damping hinge on one hand, which comprises:

[0005] A first seat body having a first chamber therein;

[0006] A second seat body having a second chamber therein;

[0007] A rotating mechanism, comprising a rotating shaft, wherein the rotating shaft is rotatably connected to the first seat body and is connected to and fixed to the second seat body, so that the second seat body can rotate relative to the first seat body; and

[0008] The damping mechanism includes a turntable and an elastic crimping structure. The turntable is fixed to the rotating shaft through a sleeve and can rotate in the first chamber and the second chamber. The elastic crimping structure is arranged at intervals on the radial outside of the rotating shaft and is elastically crimped between the first seat body and the disk surface of the turntable.

[0009] In some embodiments, the preload force of the elastic pressing structure elastically pressed between the first seat body and the disk surface of the rotating disk can be adjusted;

[0010] And / or, the damping mechanism comprises a plurality of elastic pressing structures having different pre-tightening forces and being interchangeable;

[0011] And / or, the damping mechanism includes a plurality of the rotating disks having different thicknesses and being interchangeable.

[0012] In some embodiments, the elastic crimping structure includes a mounting member connected to the first seat body, a crimping member crimped to the disk surface of the turntable, and an elastic member elastically crimped between the mounting member and the crimping member.

[0013] In some embodiments, the elastic crimping structure includes a mounting sleeve embedded in the first seat body, and the inner circumferential wall of the mounting sleeve forms a threaded connection with the outer circumferential wall of the mounting member, so that the preload force of the elastic member can be adjusted by rotating the position of the mounting member in the mounting sleeve.

[0014] In some embodiments, a locating pin hole is provided on a peripheral wall of the mounting sleeve, and the elastic crimping structure includes an anti-dropping pin penetrating through the first seat body and the locating pin hole.

[0015] In some embodiments, a shifting groove is formed on the surface of the turntable, and the elastic crimping structure includes a fixed end fixedly connected to the first seat body and a crimping end capable of being inserted into or released from the shifting groove when the second seat body drives the turntable to rotate.

[0016] In some embodiments, there are multiple shift grooves, which are arranged in sequence and spaced apart along the circumference of the turntable, and the crimping end of the elastic crimping structure can be engaged with the multiple shift grooves in sequence when the second seat drives the turntable to rotate.

[0017] In some embodiments, the crimping end is provided with a crimping spherical surface, and the shifting groove is provided with a groove wall spherical surface capable of being snap-fitted with the crimping spherical surface.

[0018] In some embodiments, the elastic pressing structures are provided in plurality and are arranged in pairs, and the turntable is pressed between two of the elastic pressing structures arranged in pairs.

[0019] In some embodiments, the damping hinge comprises:

[0020] A first limiting structure, connected to the second seat body and capable of abutting against the first seat body to limit a maximum rotation angle of the second seat body along a first rotation direction;

[0021] The second limiting structure is connected to the second seat body and can abut against the first seat body to limit the maximum rotation angle of the second seat body along a second rotation direction, and the second rotation direction is set opposite to the first rotation direction.

[0022] In some embodiments, the first limiting structure is provided with a first card slot, the second limiting structure is provided with a second card slot, the second seat body is provided with a first card plate that is inserted into the first card slot and a second card plate that is inserted into the second card slot, and the peripheral wall of the turntable abuts against the first limiting structure and the second limiting structure toward the first card plate and the second card plate.

[0023] The second aspect of the present application also provides an operating device, which includes:

[0024] Car body;

[0025] rear view mirror assembly; and

[0026] In the above-mentioned damping hinge, the first seat body is connected to the vehicle body, and the second seat body is connected to the rearview mirror assembly.

[0027] Through the above technical solution, the damping hinge of the present application uses an elastic crimping structure to press the surface of the turntable, and can form friction at the contact position between the elastic crimping structure and the surface of the turntable. At the same time, since the elastic crimping structure is arranged at intervals on the radial outside of the rotating shaft, compared with the existing damping hinges of the same size, the damping hinge of the present application has a longer damping lever arm, thereby having a larger damping torque. In this way, even when the second seat body is connected to a long-arm structure, the second seat body is not easy to rotate relative to the first seat body, and the position of the long-arm structure connected to the second seat body can be effectively maintained stable, so that the long-arm structure is suspended. At this time, the damping hinge plays a role in limiting the long-arm structure, and the reliability is improved, and the applicable scenarios are widened. For example, the damping hinge of the present application can be used to connect the rearview mirror assembly of tractors and other operating equipment, which can effectively reduce the risk of shaking of the rearview mirror assembly and avoid affecting normal operation.

[0028] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0030] Figure 1 A schematic diagram of a damping hinge in a specific implementation manner of the present application;

[0031] Figure 2 for Figure 1 A schematic diagram of the damping hinge in the embodiment when the first limiting structure abuts against the first seat body;

[0032] Figure 3 for Figure 1 A schematic diagram of the damping hinge in the embodiment when the second limiting structure abuts against the first seat body;

[0033] Figure 4 for Figure 1 A cross-sectional view of the damping hinge in FIG.

[0034] Figure 5 for Figure 1 Schematic diagram of the turntable with damping hinge in FIG.

[0035] Figure 6 for Figure 1 Schematic diagram of the rotating shaft of the damping hinge;

[0036] Figure 7 for Figure 1 Schematic diagram of the second seat body of the damping hinge.

[0037] Description of Reference Numerals

[0038] 1 First seat 2 Damping mechanism

[0039] 3 Rotation mechanism 4 Limiting structure

[0040] 5 Second seat 11 Turntable

[0041] 12 Anti-rotation key 21 Rotating shaft

[0042] 22 Bushing 23 Anti-rotation washer

[0043] 24 Fasteners 31 Mounting parts

[0044] 32 elastic part 33 crimping part

[0045] 34 Mounting sleeve 35 Anti-drop pin

[0046] a The first limiting structure b The second limiting structure

[0047] c Second rotation direction d First rotation direction

[0048] e Thread fit position f Anti-rotation fit position

[0049] g spherical fit h gear slot

[0050] i Crimp position track j Key matching groove

[0051] k Anti-rotation column segment m Key installation slot

[0052] n Card plate o Anti-rotation hole

[0053] L Damping lever DETAILED DESCRIPTION

[0054] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0055] Reference Figures 1 to 7 The first exemplary embodiment of the present application provides a damping hinge, the damping hinge comprising:

[0056] The first seat body 1;

[0057] The second seat body 5;

[0058] The rotating mechanism 3 includes a rotating shaft 21, which is rotatably connected to the first base body 1 and is connected to and fixed to the second base body 5, so that the second base body 5 can rotate relative to the first base body 1; and

[0059] The damping mechanism 2 includes a rotating disk 11 and an elastic pressing structure. The rotating disk 11 is sleeved and fixed on the rotating shaft 21 . The elastic pressing structure is arranged at intervals on the radial outer side of the rotating shaft 21 and is elastically pressed between the first seat body 1 and the disk surface of the rotating disk 11 .

[0060] Through the above technical solution, the damping hinge of the present application uses the elastic pressing structure to press the disk surface of the rotating disk 11, and can form a friction force at the contact position between the elastic pressing structure and the disk surface of the rotating disk 11. At the same time, since the elastic pressing structure is arranged at intervals on the radial outer side of the rotating shaft 21, compared with the existing damping hinges of the same size, the damping hinge of the present application has a longer damping force arm L (refer to Figure 2 ), so that it has a larger damping torque. In this way, even when the second seat body 5 is connected to the long arm structure, the second seat body 5 is not easy to rotate relative to the first seat body 1, and the position of the long arm structure connected to the second seat body 5 can be effectively maintained stable, so that the long arm structure is suspended. At this time, the damping hinge plays a role in limiting the long arm structure, the reliability is improved, and the applicable scenarios are widened. For example, the damping hinge of the present application can be used to connect the rearview mirror assembly of operating equipment such as tractors, which can effectively reduce the risk of shaking of the rearview mirror assembly and avoid affecting normal operation.

[0061] When the second seat body 5 needs to be rotated, for example, when the second seat body 5 is connected to a long arm-like structure, it is necessary to apply a torque on the long arm-like structure that is sufficient to overcome the damping torque and rotate the second seat body 5. When the second seat body 5 rotates relative to the first seat body 1, the elastic pressing structure still keeps pressing the surface of the rotating disk 11. At this time, the elastic pressing structure and the surface of the rotating disk 11 form sliding friction, which can slow down the rotation speed of the second seat body 5 and prevent the long arm-like structure connected to the second seat body 5 from rotating rapidly, thereby protecting the long arm-like structure. For example, when the position of the rearview mirror assembly needs to be adjusted, it can prevent the rearview mirror assembly from moving too fast and accidentally causing a collision.

[0062] In some embodiments, reference Figure 1 , Figure 4 and Figure 7 A first chamber is provided in the first base body 1, and a second chamber is provided in the second base body 5. The turntable 11 can rotate in the first chamber and the second chamber. At this time, in order to realize the elastic crimping structure to press the surface of the turntable 11, the elastic crimping structure can also be built into the first base body 1, so that the damping hinge of the present application has a more compact structure, a smaller size, and a smooth and beautiful appearance, and can be used directly as an appearance part without a jacket.

[0063] Of course, in some other embodiments, the turntable 11 and the elastic crimping structure may also be arranged outside the first seat body 1 and the second seat body 5, but do not have to be built into the first seat body 1 and the second seat body 5. The present application does not limit the specific arrangement of the turntable 11 and the elastic crimping structure.

[0064] In some embodiments, reference Figure 4 The elastic crimping structure may include a mounting member 31 connected to the first seat body 1, a crimping member 33 crimped to the disk surface of the turntable 11, and an elastic member 32 (for example, a rubber spring, a heavy metal spring, etc.) elastically crimped between the mounting member 31 and the crimping member 33.

[0065] When the first seat body 1 and the second seat body 5 are relatively fixed, the crimping member 33 is kept pressed on the surface of the turntable 11 by the elastic force of the elastic member 32. When the second seat body 5 drives the shaft 21 to rotate and the shaft 21 drives the turntable 11 to rotate, the position of the crimping member 33 pressed on the surface of the turntable 11 changes. The change trajectory of the crimping position of the crimping member 33 and the surface of the turntable 11 can be seen in FIG. Figure 5 The crimping position track i in .

[0066] In some embodiments, reference Figure 4 The elastic crimping structure may include a mounting sleeve 34 embedded in the first seat body 1, and the inner peripheral wall of the mounting sleeve 34 is threadedly connected with the outer peripheral wall of the mounting member 31 (see Figure 4In this way, by rotating and adjusting the position of the mounting member 31 in the mounting sleeve 34, the compression amount of the elastic member 32 can be increased or decreased, so that the preload force of the elastic member 32 can be adjusted, thereby adjusting the pressing force applied by the crimping member 33 on the disk surface of the turntable 11, and the friction force at the contact position between the crimping member 33 and the disk surface of the turntable 11 can be adjusted accordingly, so that the damping hinge can adapt to more different usage scenarios.

[0067] In addition, through the arrangement of the present embodiment, when assembling the damping hinge, after the mounting sleeve 34 is embedded in the first seat body 1 and the turntable 11 is installed, it is only necessary to successively put the crimping piece 33 and the elastic piece 32 into the mounting sleeve 34, and finally put the mounting piece 31 into the mounting sleeve 34, and rotate and adjust the mounting piece 31 to a preset position in the mounting sleeve 34, so that the elastic piece 32 is pre-compressed and the crimping piece 33 is crimped onto the surface of the turntable 11, and the assembly of the mounting piece 31, the elastic piece 32 and the crimping piece 33 can be completed. The assembly method of this elastic crimping structure is convenient and quick, and does not require the aid of additional clamping auxiliary tooling. Therefore, compared with the existing damping hinges, it can greatly improve the assembly efficiency and save installation costs.

[0068] In some embodiments, reference Figure 4 The peripheral wall of the installation sleeve 34 may be provided with a positioning pin hole, and the elastic crimping structure may include an anti-dropout pin 35 that penetrates the first seat body 1 and the positioning pin hole. With such a configuration, after the installation sleeve 34 is embedded in the first seat body 1, the anti-dropout pin 35 can be used to penetrate the first seat body 1 and the positioning pin hole, thereby strengthening the fixation of the installation sleeve 34 and preventing the installation sleeve 34 from slipping out of the first seat body 1, especially when the position of the mounting member 31 in the installation sleeve 34 is rotated and adjusted, the installation sleeve 34 can be effectively prevented from moving.

[0069] In some embodiments, reference Figure 5 , the disk surface of the rotating disk 11 may be formed with a shifting groove h, and the elastic crimping structure may include a fixed end fixedly connected to the first base body 1 and a crimping end capable of being inserted into or released from the shifting groove h during the process of the rotating disk 11 driven by the second base body 5 to rotate. For example, when the elastic crimping structure is provided with the aforementioned mounting member 31, elastic member 32 and crimping member 33, the fixed end of the elastic crimping structure is located on the mounting member 31, and the crimping end of the elastic crimping structure is located on the crimping member 33.

[0070] When the crimping end of the elastic crimping structure is inserted into the shifting groove h, the damping torque of the damping hinge is further increased. If the second seat body 5 is to rotate relative to the first seat body 1, it is necessary to apply a greater thrust to the second seat body 5 to make the crimping end of the elastic crimping structure escape from the shifting groove h. Therefore, when the crimping end of the elastic crimping structure is inserted into the shifting groove h, the long arm-like structure connected to the second seat body 5 can hover more stably. At this time, the shifting groove h is equivalent to a hovering gear for the long arm-like structure.

[0071] In some embodiments, reference Figure 5 There may be a plurality of gear slots h, and the plurality of gear slots h are arranged in sequence and at intervals along the circumference of the turntable 11, and the plurality of gear slots h are all located on the crimping position trajectory i. At this time, the crimping end of the elastic crimping structure can be sequentially engaged with the plurality of gear slots h in the process of the second seat body 5 driving the turntable 11 to rotate, thereby being able to improve the hovering stability of the long arm-like structure at the positions of the plurality of gear slots h. At this time, the plurality of gear slots h respectively serve as a plurality of hovering gears of the long arm-like structure.

[0072] In some embodiments, reference Figure 4 The crimping end of the elastic crimping structure may be provided with a crimping spherical surface, and the shifting slot h is provided with a slot wall spherical surface that can be engaged with the crimping spherical surface, that is, the contact position between the crimping spherical surface of the elastic crimping structure and the slot wall spherical surface of the shifting slot h forms a spherical surface engagement position g. By providing the spherical surface engagement position g, the crimping end of the elastic crimping structure can be prevented from being stuck in the shifting slot h and causing the rotation function of the damping hinge to fail, while the damping torque of the damping hinge is increased, that is, the damping hinge can be guaranteed to not lose its original basic function while increasing the damping torque.

[0073] Some embodiments of adjusting the pressing force applied by the elastic pressing structure on the rotating disk 11 are summarized below:

[0074] For example, the elastic crimping structure can be set as a structure with adjustable preload. For example, in the embodiment described above, when the elastic crimping structure includes the mounting sleeve 34, the mounting member 31, the elastic member 32 and the crimping member 33, the position of the mounting member 31 in the mounting sleeve 34 can be adjusted by rotation, so that the compression amount of the elastic member 32 is increased or decreased, and the preload of the elastic member 32 is adjusted, thereby adjusting the pressing force applied by the crimping member 33 on the disk surface of the turntable 11.

[0075] Alternatively, the damping mechanism 2 may include a plurality of elastic pressing structures having different preload forces and being interchangeable. In this embodiment, when it is necessary to adjust the pressing force applied by the elastic pressing structure on the rotating disk 11, it is necessary to replace a different elastic pressing structure. When using elastic pressing structures having different preload forces, the pressing forces applied by the elastic pressing structure on the rotating disk 11 will also be different, thereby achieving the purpose of adjusting the pressing force.

[0076] Alternatively, the damping mechanism 2 may include a plurality of turntables 11 of different thicknesses that can be used interchangeably. In this embodiment, when it is necessary to adjust the clamping force applied by the elastic crimping structure on the turntable 11, a different turntable 11 needs to be replaced. When using turntables 11 with different thicknesses, the spacing between the turntable 11 and the elastic crimping structure will also be different, so that the compression amount of the elastic crimping structure will also be different, and the clamping force applied to the turntable 11 will also be different. Therefore, this embodiment can also achieve the purpose of adjusting the clamping force. It should be noted that the thickness of the turntable 11 referred to here can be the thickness at a position on the turntable 11 where the shifting groove h is not provided, or it can be the thickness at the shifting groove h on the turntable 11, wherein the different thickness at the shifting groove h is actually equivalent to the different depths of the shifting groove h.

[0077] It can be seen that by setting the above-listed embodiments, the compression force applied by the elastic compression structure on the turntable 11 can be adjusted, so that the damping hinge of the present application is suitable for more different scenarios. It should be noted that the above-listed embodiments can be set in the damping hinge alone or in combination, and the present application does not limit this.

[0078] In some embodiments, the rotating disk 11 and the rotating shaft 21 are fixed to each other only in the circumferential direction, and can move relative to each other in the axial direction. Figures 4 to 6 The peripheral wall of the rotating shaft 21 may be provided with a key installation groove m, in which an anti-rotation key 12 is installed. At the same time, a key matching groove j is provided on the turntable 11. When the turntable 11 is inserted and fixed on the rotating shaft 21, the anti-rotation key 12 is inserted into the key matching groove j, so that the turntable 11 and the rotating shaft 21 can be fixed to each other in the circumferential direction and can move relative to each other in the axial direction.

[0079] In the case where the turntable 11 and the rotating shaft 21 are relatively movable along the axial direction, when the clamping force applied by the elastic crimping structure on the turntable 11 is adjusted, since the turntable 11 is not axially fixed, the turntable 11 can adaptively adjust its own position along the axial direction to avoid the turntable 11 and the rotating shaft 21 being subjected to axial pressure from each other, thereby avoiding the generation of internal stress, which is beneficial to extending the service life and can reduce the strength requirements of the rotating shaft 21 and the turntable 11.

[0080] In some embodiments, reference Figure 4 There may be multiple elastic crimping structures arranged in pairs. At this time, the turntable 11 is crimped between the two elastic crimping structures arranged in pairs. The structure is symmetrical, and the force on both sides of the turntable 11 is uniform. This can prevent the turntable 11 from being deflected and exerting pressure on the rotating shaft 21, and prevent the turntable 11 and the rotating shaft 21 from being subjected to axial pressure from each other, thereby avoiding the generation of internal stress, which is beneficial to extending the service life and can reduce the strength requirements of parts such as the rotating shaft 21, the turntable 11 and the elastic crimping structure.

[0081] In some embodiments, reference Figure 2 and Figure 3 , the damping hinge may include a limiting structure 4, which may specifically include a first limiting structure a and a second limiting structure b. The first limiting structure a is connected to the second seat body 5 and can abut against the first seat body 1 to limit the maximum rotation angle of the second seat body 5 along the first rotation direction d. In addition, the second limiting structure b is connected to the second seat body 5 and can abut against the first seat body 1 to limit the maximum rotation angle of the second seat body 5 along the second rotation direction c, and it should be noted that the second rotation direction c is set in the opposite direction of the first rotation direction d.

[0082] It can be seen that by providing the first limiting structure a and the second limiting structure b, the rotatable angle of the second seat body 5 is limited within a certain range.

[0083] In working equipment such as tractors, the first seat 1 of the damping hinge can be connected to the side of the cab, and the inner end of the long arm of the rearview mirror assembly is connected to the second seat 5 of the damping hinge, and the outer end of the long arm is connected to the rearview mirror. Figure 2 The state of the middle damping hinge is regarded as the open state of the damping hinge. At this time, the rearview mirror is open and the personnel in the cab can observe the situation behind the cab side through the rearview mirror. Figure 3 The state of the middle damping hinge is regarded as the closed state of the damping hinge, in which case the rearview mirror is closed. For example, when the tractor is parked, the rearview mirror can be closed.

[0084] In some embodiments, reference Figure 2 , Figure 3 and Figure 7 The first limiting structure a may be provided with a first card slot, the second limiting structure b may be provided with a second card slot, the second seat body 5 may be provided with a first card plate inserted into the first card slot and a second card plate inserted into the second card slot. Figure 7 In the figure, the first clamping plate and the second clamping plate are both marked as clamping plate n. In addition, the peripheral wall of the rotating disk 11 abuts against the first limiting structure a and the second limiting structure b toward the first clamping plate and the second clamping plate, so that the rotating disk 11 can support the first limiting structure a and the second limiting structure b to prevent the first limiting structure a and the second limiting structure b from escaping from the second seat body 5. At this time, it is not necessary to set up other additional fixing structures to fix the first limiting structure a and the second limiting structure b, which is conducive to simplifying the structure of the damping hinge and improving its compactness.

[0085] Reference Figure 4 The damping hinge may further include parts such as a bushing 22, an anti-rotation washer 23 and a fastener 24. Specifically, the bushing 22 is embedded and fixed in the first seat body 1, the shaft 21 rotatably passes through the bushing 22, and the anti-rotation washer 23 and the fastener 24 (such as a locking nut, which can form a threaded fit with the shaft 21) are usually combined and fixedly sleeved on the shaft 21.

[0086] In addition, refer to Figure 4 , Figure 6 and Figure 7 The rotating shaft 21 may be provided with an anti-rotation column section k (for example, a square column section), and the second seat body 5 may be provided with an anti-rotation hole o (for example, a square hole). The anti-rotation column section k is passed through the anti-rotation hole o, and an anti-rotation fitting position f is formed at the contact position between the anti-rotation column section k and the anti-rotation hole o, which can realize the circumferential fixation of the rotating shaft 21 and the second seat body 5, so that the rotating shaft 21 can be driven to rotate by the second seat body 5.

[0087] The second exemplary embodiment of the present application further provides an operating device, which may be an agricultural machine such as a tractor, or an engineering machine, an emergency rescue machine, etc. Specifically, the operating device includes a vehicle body, a rearview mirror assembly, and the above-mentioned damping hinge, wherein the first seat body 1 of the damping hinge is connected to the vehicle body, and the second seat body 5 is connected to the rearview mirror assembly.

[0088] As mentioned above, when the damping hinge of the present application is used to connect the rearview mirror assembly of a tractor or other operating equipment, the risk of shaking of the rearview mirror assembly can be effectively reduced to avoid affecting normal operation. In addition, the operating equipment of the present application should also have other technical effects brought by the damping hinge, which have been described in detail above and will not be repeated here.

[0089] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0090] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0092] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. Damping hinge, characterized in that, include: A first seat body (1) is provided with a first chamber; The second seat body (5) is provided with a second chamber; A rotating mechanism (3) comprising a rotating shaft (21), wherein the rotating shaft (21) is rotatably connected to the first base body (1) and is connected to and fixed to the second base body (5), so that the second base body (5) can rotate relative to the first base body (1); and The damping mechanism (2) comprises a rotating disk (11) and an elastic pressing structure, wherein the rotating disk (11) is sleeved and fixed on the rotating shaft (21) and is rotatable in the first chamber and the second chamber, and the elastic pressing structure is arranged at intervals on the radial outer side of the rotating shaft (21) and is elastically pressed between the first seat body (1) and the disk surface of the rotating disk (11).

2. The damping hinge according to claim 1, characterized in that: The pre-tightening force of the elastic pressing structure elastically pressed between the first seat body (1) and the disk surface of the rotating disk (11) can be adjusted; And / or, the damping mechanism (2) comprises a plurality of elastic crimping structures having different preload forces and being interchangeable; And / or, the damping mechanism (2) comprises a plurality of rotating disks (11) having different thicknesses and being interchangeable.

3. The damping hinge according to claim 1, characterized in that: The elastic crimping structure comprises a mounting member (31) connected to the first seat body (1), a crimping member (33) crimped to the disk surface of the turntable (11), and an elastic member (32) elastically crimped between the mounting member (31) and the crimping member (33).

4. The damping hinge according to claim 3, characterized in that: The elastic crimping structure comprises a mounting sleeve (34) embedded in the first seat body (1), the inner peripheral wall of the mounting sleeve (34) and the outer peripheral wall of the mounting member (31) forming a threaded connection, so that the preload force of the elastic member (32) can be adjusted by rotating the position of the mounting member (31) in the mounting sleeve (34).

5. The damping hinge according to claim 4, characterized in that: A positioning pin hole is provided on the peripheral wall of the installation sleeve (34), and the elastic crimping structure comprises an anti-dropping pin (35) penetrating the first seat body (1) and the positioning pin hole.

6. The damping hinge according to claim 1, characterized in that: The surface of the turntable (11) is formed with a shifting groove (h), and the elastic crimping structure comprises a fixed end fixedly connected to the first seat body (1) and a crimping end capable of being inserted into or released from the shifting groove (h) when the second seat body (5) drives the turntable (11) to rotate.

7. The damping hinge according to claim 6, characterized in that: There are a plurality of the shifting grooves (h), and the plurality of the shifting grooves (h) are arranged in sequence and at intervals along the circumference of the turntable (11); and the crimping end of the elastic crimping structure can be sequentially engaged with the plurality of the shifting grooves (h) in the process of the second seat body (5) driving the turntable (11) to rotate.

8. The damping hinge according to claim 6, characterized in that: The crimping end is provided with a crimping spherical surface, and the shifting groove (h) is provided with a groove wall spherical surface that can be snap-fitted with the crimping spherical surface.

9. The damping hinge according to claim 1, characterized in that: The elastic pressing structures are provided in plurality and arranged in pairs, and the rotating disk (11) is pressed between two of the elastic pressing structures arranged in pairs.

10. The damping hinge according to claim 1, characterized in that: The damping hinge comprises: a first limiting structure (a), connected to the second base (5) and capable of abutting against the first base (1) to limit the maximum rotation angle of the second base (5) along the first rotation direction (d); A second limiting structure (b) is connected to the second base body (5) and is capable of abutting against the first base body (1) to limit the maximum rotation angle of the second base body (5) along a second rotation direction (c), and the second rotation direction (c) is set in the opposite direction to the first rotation direction (d).

11. The damping hinge according to claim 10, characterized in that: The first limiting structure (a) is provided with a first card slot, the second limiting structure (b) is provided with a second card slot, the second base (5) is provided with a first card plate inserted into the first card slot and a second card plate inserted into the second card slot, and the peripheral wall of the turntable (11) abuts against the first limiting structure (a) and the second limiting structure (b) toward the first card plate and the second card plate.

12. Operating equipment, characterized in that include: Car body; Rearview mirror assembly; and According to the damping hinge according to any one of claims 1 to 11, the first base body (1) is connected to the vehicle body, and the second base body (5) is connected to the rearview mirror assembly.

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