Combined shock absorbing device, tow vehicle and method of operation

Abstract

This invention belongs to the field of engineering components technology, specifically relating to shock absorption devices, and more particularly to a combined shock absorption device, a tractor, and a working method. In the combined shock absorption device, when the airbag is inflated, the connecting mechanism is fixedly connected to the vehicle frame, and shock absorption is achieved through the inflated airbag. When the airbag is not inflated, the connecting mechanism is rotatably connected to the vehicle frame. When the support frame swings, it drives the connecting mechanism to rotate, reducing the deformation of the airbag. This reduces the angle difference between the support frame and the connecting mechanism when the axle swings and the airbag is not inflated, thereby reducing the deformation of the airbag and preventing airbag damage.

Description

Technical Field

[0001] This invention belongs to the field of engineering components technology, specifically relating to shock absorption devices, and more particularly to a combined shock absorption device, a tractor, and a working method. Background Technology

[0002] To ensure vehicle stability, existing electric tractor vehicles employ a combination of airbags and shock absorbers. When the vehicle is lightly loaded, the airbags are inflated to absorb shocks. When the vehicle is heavily loaded, the airbags are deflated so that the shock absorbers can play the primary role in shock absorption, preventing damage to the airbags under heavy loads. The upper and lower ends of the shock absorbers are hinged to the frame and axle, respectively, so they also provide swaying shock absorption when the vehicle is bumpy. However, since the upper and lower ends of the airbags can only be fixed, the unilateral pulling and compression caused by the axle swaying after the airbags are deflated can lead to damage to the airbags.

[0003] Therefore, due to the technical problem of airbag damage caused by unilateral pulling and compression when the axle swings, it is necessary to design a combined shock absorption device, tractor, and working method.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0005] This disclosure provides at least one combined shock absorber, a tractor, and a method of operation.

[0006] In a first aspect, embodiments of this disclosure provide a combined shock absorption device, comprising:

[0007] A support frame is hinged to the axle. Several airbags are provided on the support frame. The top of each airbag is connected to the vehicle frame through a corresponding connecting mechanism, and the bottom of each airbag is connected to the support frame.

[0008] When the airbag inflates, the connecting mechanism is fixedly connected to the frame, and shock absorption is achieved through the inflated airbag.

[0009] When the airbag is not inflated, the connecting mechanism is rotatably connected to the frame. When the support frame swings, it drives the connecting mechanism to rotate, reducing the deformation of the airbag.

[0010] In one optional embodiment, the connecting mechanism includes: a rotating plate;

[0011] The frame is provided with mounting holes that fit the rotating plate, and the rotating plate is disposed in the mounting holes and rotatably connected to the mounting holes.

[0012] The top of the airbag is connected to the bottom surface of the rotating plate, and the rotating plate has a first through hole corresponding to the air inlet of the airbag.

[0013] The rotating plate has a second through hole that communicates with the first through hole on its side wall;

[0014] A locking block is slidably disposed inside the second through hole, and the locking block is connected to the inner wall of the second through hole by a spring;

[0015] The inner wall of the mounting hole is provided with a slot corresponding to the card block.

[0016] In one alternative implementation, when the airbag is inflated, the gas pushes the locking block out from the second through hole, and the portion of the locking block extending out of the second through hole extends into the locking groove to fix the rotating plate to the vehicle frame.

[0017] In one alternative implementation, when the airbag is not inflated, the locking block is completely inside the second through hole. At this time, the rotating plate is rotatably connected to the vehicle frame. When the support frame swings, it drives the rotating plate to rotate, so that the rotating plate and the support frame rotate in the same direction, thereby reducing the deformation of the airbag.

[0018] In one alternative embodiment, the support frame is provided with a plurality of shock absorbers, the top end of the shock absorbers being hinged to the vehicle frame, and the bottom end of the shock absorbers being hinged to the support frame.

[0019] In one alternative embodiment, the first through hole is connected to an inflation mechanism via an air tube to inflate the airbag.

[0020] Secondly, embodiments of this disclosure also provide a tractor unit, comprising:

[0021] The aforementioned combined shock absorption device.

[0022] In one alternative implementation, the chassis and the axle;

[0023] The axle is hinged to the support frame in the combined shock absorber. Several airbags are provided on the support frame. The top of the airbags is connected to the vehicle frame through a corresponding connecting mechanism, and the bottom of the airbags is connected to the support frame.

[0024] The support frame is equipped with several shock absorbers, the top of which is hinged to the vehicle frame, and the bottom of which is hinged to the support frame.

[0025] In one optional embodiment, the connecting mechanism includes: a rotating plate;

[0026] The frame is provided with mounting holes that fit the rotating plate, and the rotating plate is disposed in the mounting holes and rotatably connected to the mounting holes.

[0027] The top of the airbag is connected to the bottom surface of the rotating plate, and the rotating plate has a first through hole corresponding to the air inlet of the airbag.

[0028] The rotating plate has a second through hole that communicates with the first through hole on its side wall;

[0029] A locking block is slidably disposed inside the second through hole, and the locking block is connected to the inner wall of the second through hole by a spring;

[0030] The inner wall of the mounting hole is provided with a slot corresponding to the card block;

[0031] When the airbag inflates, the gas pushes the locking block out from the second through hole, and the part of the locking block extending out of the second through hole extends into the locking groove to fix the rotating plate to the frame.

[0032] When the airbag is not inflated, the locking block is completely inside the second through hole. At this time, the rotating plate frame is connected to the rotating plate. When the support frame swings, it drives the rotating plate to rotate, reducing the deformation of the airbag.

[0033] Thirdly, this disclosure also provides a method for operating the above-mentioned combined shock absorber, characterized in that it includes:

[0034] When the airbag inflates, the connecting mechanism is fixedly connected to the frame, and shock absorption is achieved through the inflated airbag.

[0035] When the airbag is not inflated, the connecting mechanism is rotatably connected to the frame. When the support frame swings, it drives the connecting mechanism to rotate, reducing the deformation of the airbag.

[0036] The beneficial effects of this invention are that when the airbag is inflated, the connecting mechanism is fixedly connected to the vehicle frame, and shock absorption is achieved through the inflated airbag. When the airbag is not inflated, the connecting mechanism is rotatably connected to the vehicle frame. When the support frame swings, it drives the connecting mechanism to rotate, reducing the deformation of the airbag. This reduces the angle difference between the support frame and the connecting mechanism when the axle swings and the airbag is not inflated, thereby reducing the deformation of the airbag and preventing airbag damage.

[0037] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a combined shock absorption device provided in an embodiment of the present disclosure;

[0041] Figure 2 This is a schematic diagram of a mounting hole provided in an embodiment of the present disclosure;

[0042] Figure 3 This is a schematic diagram of a connecting mechanism provided in an embodiment of the present disclosure;

[0043] Figure 4 This is a schematic diagram of the structure of a trachea provided in an embodiment of the present disclosure.

[0044] In the picture:

[0045] Support frame 1;

[0046] Airbag 2;

[0047] Connecting mechanism 3, rotating plate 31, first through hole 32, second through hole 33, locking block 34, spring 35, rotating column 36;

[0048] Frame 4, mounting hole 41, slot 42, rotating hole 43;

[0049] Shock absorber 5;

[0050] Trachea 6, Connector 61. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0053] To ensure vehicle stability, existing electric tractor vehicles employ a combination of airbags and shock absorbers. When the vehicle is lightly loaded, the airbags are inflated to absorb shocks. When the vehicle is heavily loaded, the airbags are deflated so that the shock absorbers can play the primary role in shock absorption, preventing damage to the airbags under heavy loads. The upper and lower ends of the shock absorbers are hinged to the frame and axle, respectively, so they also provide swaying shock absorption when the vehicle is bumpy. However, since the upper and lower ends of the airbags can only be fixed, the unilateral pulling and compression caused by the axle swaying after the airbags are deflated can lead to damage to the airbags.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0056] like Figure 1 As shown, at least one disclosed embodiment provides a combined shock absorption device, including: a support frame 1, which is hinged to the axle; a plurality of airbags 2 are provided on the support frame 1; the top of each airbag 2 is connected to the vehicle frame 4 via a corresponding connecting mechanism 3; and the bottom of each airbag 2 is connected to the support frame 1. When the airbags 2 are inflated, the connecting mechanism 3 is fixedly connected to the vehicle frame 4, and shock absorption is achieved through the inflated airbags 2. When the airbags 2 are not inflated, the connecting mechanism 3 is rotatably connected to the vehicle frame 4. When the support frame 1 swings, it drives the connecting mechanism 3 to rotate, reducing the deformation of the airbags 2. This reduces the angle difference between the support frame 1 and the connecting mechanism 3 when the axle swings and the airbags 2 are not inflated, thereby reducing the deformation of the airbags 2 and preventing damage to the airbags 2.

[0057] In this embodiment, when the tractor is lightly loaded, the airbag 2 can be inflated, and the airbag 2 and shock absorber 5 can be used together to reduce shock, thereby improving the shock absorption effect. When the tractor is heavily loaded, the gas in the airbag 2 is discharged, and the shock absorber 5 is used to reduce shock, preventing the airbag 2 from being damaged under heavy load. At this time, the deformation of the airbag 2 is reduced by the connecting mechanism 3 to prevent the airbag 2 from being damaged.

[0058] like Figure 2 and Figure 3 As shown, in an optional embodiment, the connecting mechanism 3 includes: a rotating plate 31; a mounting hole 41 adapted to the rotating plate 31 is provided on the frame 4, the rotating plate 31 is disposed in the mounting hole 41 and rotatably connected to the mounting hole 41; the top end of the airbag 2 is connected to the bottom surface of the rotating plate 31, and a first through hole 32 corresponding to the air inlet of the airbag 2 is provided on the rotating plate 31; a second through hole 33 communicating with the first through hole 32 is provided on the side wall of the rotating plate 31; a locking block 34 is slidably disposed in the second through hole 33, and the locking block 34 is connected to the inner wall of the second through hole 33 by a spring 35; and a slot 42 corresponding to the locking block 34 is provided on the inner wall of the mounting hole 41.

[0059] like Figure 2 and Figure 3 As shown, in this embodiment, a rotating column 36 may be provided on the side wall of the rotating plate 31 to correspond to the rotating hole 43 opened on the inner wall of the mounting hole 41. The rotating column 36 is inserted into the corresponding rotating hole 43 so that the rotating plate 31 can rotate.

[0060] In this embodiment, the outer wall of the locking block 34 is in close contact with the inner wall of the second through hole 33, so that the locking block 34 can block the second through hole 33 as much as possible, so as to prevent gas from leaking from the second through hole 33 when inflating the airbag 2.

[0061] In this embodiment, a connector 61 can be provided at the first through hole 32. The connector 61 is connected to the air tube 6 so that the inflation mechanism can smoothly inflate the airbag 2 through the first through hole 32. The top of the airbag 2 can be fixedly connected to the bottom surface of the rotating plate 31 so that the air inlet of the airbag 2 is always aligned with the first through hole 32.

[0062] In this embodiment, the trachea 6 has a certain degree of flexibility and redundant length, so that the rotating plate 31 avoids the trachea 6 from detaching from the connector 61 when rotating.

[0063] In this embodiment, the inflation mechanism can be mounted on the frame 4.

[0064] In this embodiment, when the air is not inflated, the locking block 34 is completely inside the second through hole 33. At this time, the rotating plate 31 is rotatably connected to the frame 4. When the vehicle swings, the rotation of the rotating plate 31 causes the rotating plate 31 and the support frame 1 to rotate in the same direction, so as to keep the rotating plate 31 and the support frame 1 parallel as much as possible or to minimize the angle between the rotating plate 31 and the support frame 1, so as to reduce the unilateral pulling and compression of the airbag 2 caused by the swing of the axle.

[0065] In one alternative embodiment, when the airbag 2 is inflated, the gas pushes the locking block 34 out of the second through hole 33, and the part of the locking block 34 extending out of the second through hole 33 extends into the locking groove 42 to fix the rotating plate 31 to the frame 4.

[0066] In one alternative embodiment, when the airbag 2 is not inflated, the locking block 34 is completely inside the second through hole 33. At this time, the rotating plate 31 is rotatably connected to the frame 4. When the support frame 1 swings, it drives the rotating plate 31 to rotate, so that the rotating plate 31 and the support frame 1 rotate in the same direction, thereby reducing the deformation of the airbag 2.

[0067] like Figure 2 As shown, in one optional embodiment, a plurality of shock absorbers 5 are provided on the support frame 1, the top end of the shock absorber 5 is hinged to the vehicle frame 4, and the bottom end of the shock absorber 5 is hinged to the support frame 1.

[0068] like Figure 4 As shown, in an optional embodiment, the first through hole 32 is connected to an inflation mechanism via an air pipe 6 to inflate the airbag 2 through the inflation mechanism.

[0069] At least one other disclosed embodiment also provides a tractor unit including the aforementioned combined shock absorber.

[0070] In one optional embodiment, the vehicle frame 4 and the axle are provided; the axle is hinged to the support frame 1 in the combined shock absorber, the support frame 1 is provided with a plurality of airbags 2, the top of the airbags 2 is connected to the vehicle frame 4 through a corresponding connecting mechanism 3, and the bottom of the airbags 2 is connected to the support frame 1; the support frame 1 is provided with a plurality of shock absorbers 5, the top of the shock absorbers 5 is hinged to the vehicle frame 4, and the bottom of the shock absorbers 5 is hinged to the support frame 1.

[0071] In one optional embodiment, the connecting mechanism 3 includes: a rotating plate 31; a mounting hole 41 adapted to the rotating plate 31 is provided on the vehicle frame 4, the rotating plate 31 is disposed in the mounting hole 41 and rotatably connected to the mounting hole 41; the top end of the airbag 2 is connected to the bottom surface of the rotating plate 31, and a first through hole 32 corresponding to the air inlet of the airbag 2 is provided on the rotating plate 31; a second through hole 33 communicating with the first through hole 32 is provided on the side wall of the rotating plate 31; a locking block 34 is slidably disposed in the second through hole 33. 4 is connected to the inner wall of the second through hole 33 by a spring 35; the inner wall of the mounting hole 41 is provided with a slot 42 corresponding to the locking block 34; when the airbag 2 is inflated, the gas pushes the locking block 34 out of the second through hole 33, and the part of the locking block 34 extending out of the second through hole 33 extends into the slot 42 to fix the rotating plate 31 to the frame 4; when the airbag 2 is not inflated, the locking block 34 is completely in the second through hole 33, at which time the rotating plate 31 is rotatably connected to the frame 4, and when the support frame 1 swings, it drives the rotating plate 31 to rotate, reducing the deformation of the airbag 2.

[0072] At least one other disclosed embodiment also provides a working method for the above-mentioned combined shock absorber, characterized in that: when the airbag 2 is inflated, the connecting mechanism 3 is fixedly connected to the frame 4, and shock absorption is performed by the inflated airbag 2; when the airbag 2 is not inflated, the connecting mechanism 3 is rotatably connected to the frame 4, and when the support frame 1 swings, it drives the connecting mechanism 3 to rotate, thereby reducing the deformation of the airbag 2.

[0073] In summary, when the airbag 2 is inflated, the connecting mechanism 3 is fixedly connected to the frame 4, and shock absorption is achieved through the inflated airbag 2. When the airbag 2 is not inflated, the connecting mechanism 3 is rotatably connected to the frame 4. When the support frame 1 swings, it drives the connecting mechanism 3 to rotate, reducing the deformation of the airbag 2. This reduces the angle difference between the support frame 1 and the connecting mechanism 3 when the axle swings and the airbag 2 is not inflated, thereby reducing the deformation of the airbag 2 and preventing damage to the airbag 2.

[0074] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0075] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0076] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0077] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A combined shock absorbing device, characterized in that include: Support frame (1), the support frame (1) is hinged to the axle, the support frame (1) is provided with a plurality of airbags (2), the top of the airbags (2) is connected to the frame (4) through a corresponding connecting mechanism (3), and the bottom of the airbags (2) is connected to the support frame (1). When the airbag (2) is inflated, the connecting mechanism (3) is fixedly connected to the frame (4), and shock absorption is achieved through the inflated airbag (2); When the airbag (2) is not inflated, the connecting mechanism (3) is rotatably connected to the frame (4). At this time, when the support frame (1) swings, it drives the connecting mechanism (3) to rotate, reducing the deformation of the airbag (2). The support frame (1) is provided with several shock absorbers (5), the top of the shock absorber (5) is hinged to the frame (4), and the bottom of the shock absorber (5) is hinged to the support frame (1). The connecting mechanism (3) includes: a rotating plate (31); The frame (4) is provided with mounting holes (41) that are adapted to the rotating plate (31). The rotating plate (31) is disposed in the mounting holes (41) and is rotatably connected to the mounting holes (41). The top of the airbag (2) is connected to the bottom surface of the rotating plate (31), and the rotating plate (31) is provided with a first through hole (32) corresponding to the air inlet of the airbag (2). The rotating plate (31) has a second through hole (33) on its side wall that communicates with the first through hole (32). A locking block (34) is slidably disposed inside the second through hole (33), and the locking block (34) is connected to the inner wall of the second through hole (33) by a spring (35); The inner wall of the mounting hole (41) is provided with a slot (42) corresponding to the card block (34).

2. The combined shock absorption device as described in claim 1, characterized in that, When the airbag (2) is inflated, the gas pushes the locking block (34) out of the second through hole (33). The part of the locking block (34) that extends out of the second through hole (33) extends into the locking groove (42) to fix the rotating plate (31) to the frame (4).

3. The combined shock absorption device as described in claim 1, characterized in that, When the airbag (2) is not inflated, the locking block (34) is completely inside the second through hole (33). At this time, the rotating plate (31) is rotatably connected to the frame (4). When the support frame (1) swings, it drives the rotating plate (31) to rotate, so that the rotating plate (31) and the support frame (1) rotate in the same direction, reducing the deformation of the airbag (2).

4. The combined shock absorption device as described in claim 1, characterized in that, The first through hole (32) is connected to the inflation mechanism through the air tube (6) so as to inflate the air bag (2) through the inflation mechanism.

5. A towing vehicle characterized in that include: The combined shock absorption device as described in any one of claims 1-4.

6. The tractor unit as described in claim 5, characterized in that, The frame (4) and axles; The axle is hinged to the support frame (1) in the combined shock absorber. Several airbags (2) are provided on the support frame (1). The top of the airbags (2) is connected to the frame (4) through a corresponding connecting mechanism (3). The bottom of the airbags (2) is connected to the support frame (1). The support frame (1) is provided with several shock absorbers (5), the top of the shock absorber (5) is hinged to the frame (4), and the bottom of the shock absorber (5) is hinged to the support frame (1).

7. The tractor unit as described in claim 6, characterized in that, The connecting mechanism (3) includes: a rotating plate (31); The frame (4) is provided with mounting holes (41) that are adapted to the rotating plate (31). The rotating plate (31) is disposed in the mounting holes (41) and is rotatably connected to the mounting holes (41). The top of the airbag (2) is connected to the bottom surface of the rotating plate (31), and the rotating plate (31) is provided with a first through hole (32) corresponding to the air inlet of the airbag (2). The rotating plate (31) has a second through hole (33) on its side wall that communicates with the first through hole (32). A locking block (34) is slidably disposed inside the second through hole (33), and the locking block (34) is connected to the inner wall of the second through hole (33) by a spring (35); The inner wall of the mounting hole (41) is provided with a slot (42) corresponding to the card block (34); When the airbag (2) is inflated, the gas pushes the locking block (34) out of the second through hole (33), and the part of the locking block (34) that extends out of the second through hole (33) extends into the locking groove (42) to fix the rotating plate (31) to the frame (4); When the airbag (2) is not inflated, the locking block (34) is completely inside the second through hole (33). At this time, the rotating plate (31) is connected to the frame (4) for rotation. When the support frame (1) swings, it drives the rotating plate (31) to rotate, reducing the deformation of the airbag (2).

8. A method of operating a combined shock absorbing device according to any one of claims 1-4, characterized in that include: When the airbag (2) is inflated, the connecting mechanism (3) is fixedly connected to the frame (4), and shock absorption is achieved through the inflated airbag (2); When the airbag (2) is not inflated, the connecting mechanism (3) is rotatably connected to the frame (4). At this time, when the support frame (1) swings, it drives the connecting mechanism (3) to rotate, reducing the deformation of the airbag (2).

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