Multi-damping structure of off-road vehicle

Abstract

The utility model belongs to the technical field of off-road vehicle shock absorption, and particularly relates to an off-road vehicle multiple shock absorption structure which comprises a supporting arm and a lower support arranged at the bottom of a main shock absorber and hinged to the main shock absorber, a guide rod is sleeved with the lower support, and an upper support is hinged to the top of the main shock absorber. The damping spring abuts against the lower support, and a shock isolation mechanism is fixedly mounted at the top of the upper support; wherein the shock isolation mechanism comprises a mounting seat and a shock isolator, and the top of the upper support is fixedly connected with a connecting screw rod; the vibration isolator comprises a gasket and a lead rod, the gasket is sleeved with an outer sheath, and the lead rod is inserted into the gasket and abuts against the outer sheath. The off-road vehicle can have multiple damping effects through the cooperation of the at least two sets of damping springs, the dampers and the shock isolation mechanisms, under the action of the shock isolation pads, vibration caused by the fact that jacking force of the damping structures directly acts on the vehicle frame can be avoided, and therefore the driving comfort of the off-road vehicle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorption of off-road vehicles, and in particular relates to a multiple shock absorption structure of an off-road vehicle. Background Art

[0002] With the increasing popularity of automobiles in China, cars are no longer simply a means of transportation; higher demands are being placed on their comfort. Shock absorbers are key components for reducing vehicle body vibration and improving vehicle comfort. For off-road vehicles, the shock-absorbing structure is even more crucial.

[0003] Problems with existing technologies:

[0004] The prior art document "An off-road vehicle shock absorber and automobile" with publication number CN212775315U states that "it includes a cylinder and a piston rod, the piston rod extending from the lower end of the cylinder, a protective cover mounted on the lower end of the piston rod, the protective cover extending upward to shield the piston rod extending out of the cylinder, a dust seal assembly disposed within the end cap at the lower end of the cylinder, the dust seal assembly resting against the outer surface of the piston rod to prevent mud and sand accumulated on the outer surface of the piston rod from entering the cylinder."

[0005] In the above-mentioned device, shock absorption of the off-road vehicle is achieved only through the cooperation of the oil cylinder and the piston rod. However, this shock absorption structure is relatively simple, which results in poor shock absorption effect of the off-road vehicle, thereby affecting driving comfort. At the same time, since the shock absorption structure in the above-mentioned device is directly connected to the vehicle frame, the lifting force generated by the shock absorption structure directly acts on the frame during the shock absorption operation, thereby causing the vehicle to vibrate and affecting driving comfort. Utility Model Content

[0006] The purpose of the utility model is to provide an off-road vehicle multi-shock absorption structure, which can solve the problems that the existing off-road vehicle shock absorber structure is simple and affects the shock absorption effect, and the shock absorber is directly connected to the frame, causing vibration to the vehicle when the shock absorber is working, affecting driving comfort.

[0007] The technical solutions adopted by this utility model are as follows:

[0008] A multi-shock absorption structure for an off-road vehicle comprises a support arm and a lower support provided at the bottom of a main shock absorber and hinged to the main shock absorber, wherein a guide rod is inserted into the lower support, and an upper support is hinged to the top of the main shock absorber;

[0009] It also includes a shock-absorbing spring abutting against the lower support, and a shock-isolating mechanism is fixedly installed on the top of the upper support;

[0010] Wherein, the seismic isolation mechanism includes a mounting seat and a seismic isolator, and the top of the upper support is fixedly connected with a connecting screw;

[0011] The seismic isolator comprises a gasket and a lead rod. The outer portion of the gasket is sleeved with an outer sheath. The lead rod is inserted into the interior of the gasket and abuts against the outer sheath.

[0012] The guide rod is welded inside the support arm, and the shock-absorbing spring is sleeved on the outside of the guide rod and abuts against the lower support.

[0013] The shock-absorbing springs are provided in at least two groups, and the lower support is slidably mounted on the support arm via a guide rod.

[0014] The connecting screw is welded to the top of the upper support, and the mounting seat is in contact with the upper support via a vibration isolator.

[0015] The outer sheath is sleeved on the outside of the connecting screw through a gasket, and both the gasket and the outer sheath are annular.

[0016] The technical effects achieved by this utility model are:

[0017] The utility model comprises a shock absorbing assembly composed of a guide rod and a shock absorbing spring installed inside a support arm, and the shock absorbing assembly can cooperate with a lower support hinged at the bottom of the main shock absorber. Therefore, when the main shock absorber is working to absorb shock, the lower support can slide on the surface of the guide rod and compress the shock absorbing spring, and the reaction force of the shock absorbing spring acts on the lower support, which is absorbed by the damping effect of the lower support and the main shock absorber itself. Therefore, the shock absorbing assembly of this device can be combined with the main shock absorber to achieve multiple shock absorption effects, thereby improving the driving comfort of the vehicle.

[0018] The utility model has a connecting screw welded on the top of the upper support, and a vibration isolator is abutted between the bottom of the mounting seat and the upper support. By using the connection of the fixing nut and the connecting screw, the vibration isolation mechanism can be installed and fixed to the upper support. At the same time, the shock-absorbing structure can be installed on the vehicle through the cooperation of the mounting seat and the support arm. When the multiple shock-absorbing structures are working, the jacking force generated can be absorbed by the gasket in the vibration isolator, thereby avoiding the jacking force directly acting on the frame, causing large vibration of the vehicle to affect driving comfort. At the same time, it can also provide a certain buffering effect, thereby improving the use effect of the shock-absorbing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the overall installation structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the support arm structure in the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the seismic isolation mechanism in the utility model;

[0022] Figure 4 It is a schematic diagram of the structural analysis of the vibration isolator in the present utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Support arm; 21. Guide rod; 22. Shock-absorbing spring; 3. Lower support; 4. Main shock absorber; 5. Upper support; 6. Isolation mechanism; 61. Mounting seat; 62. Connecting screw; 63. Isolator; 631. Outer sheath; 632. Gasket; 633. Lead rod. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0026] like Figure 1-4 As shown, a multi-shock absorption structure for an off-road vehicle includes a support arm 1 and a lower support 3 provided at the bottom of a main shock absorber 4 and hinged to the main shock absorber 4. A guide rod 21 is inserted into the lower support 3, and an upper support 5 is hinged to the top of the main shock absorber 4.

[0027] It also includes a shock-absorbing spring 22 abutting against the lower support 3, and a shock-isolating mechanism 6 is fixedly installed on the top of the upper support 5;

[0028] The seismic isolation mechanism 6 includes a mounting base 61 and a seismic isolator 63, and a connecting screw 62 is fixedly connected to the top of the upper support 5;

[0029] The seismic isolator 63 includes a gasket 632 and a lead rod 633 . The outer portion of the gasket 632 is sleeved with an outer sheath 631 . The lead rod 633 is inserted into the inner portion of the gasket 632 and abuts against the outer sheath 631 .

[0030] Refer to the attached Figure 1 and Figure 2 In this embodiment, the guide rod 21 is welded to the inside of the support arm 1, and the shock-absorbing spring 22 is sleeved on the outside of the guide rod 21 and abuts against the lower support 3.

[0031] In the above embodiment, the shock absorbing spring 22 can be installed inside the support arm 1 through the guide rod 21. The shock absorbing spring 22 cooperates with the main shock absorber 4 hinged inside the lower support 3, so that the shock absorbing structure of the off-road vehicle has multiple shock absorbing effects.

[0032] Furthermore, at least two groups of shock-absorbing springs 22 are provided, and the lower support 3 is slidably mounted on the support arm 1 through the guide rod 21 .

[0033] The specific coordination process between the shock-absorbing spring 22 and the main shock absorber 4 is as follows: through the shock-absorbing spring 22 located on the left side of the lower support 3, when the main shock absorber 4 is working and subjected to force, the lower support 3 can be pushed to slide on the surface of the guide rod 21 and perform buffering, and the reverse thrust generated by the shock-absorbing spring 22 on the left side can be absorbed by the shock-absorbing spring 22 on the right side of the lower support 3, so that under the damping effect of the main shock absorber 4 itself, the shock absorbing mechanism has multiple shock-absorbing effects.

[0034] Refer to the attached Figure 1 、 Figure 3 and Figure 4 In this embodiment, the connecting screw 62 is welded to the top of the upper support 5, and the mounting seat 61 is in contact with the upper support 5 through the isolator 63.

[0035] In the above embodiment, the isolator 63 can be clamped between the mounting seat 61 and the upper support 5 by using a fixing nut, so that the lifting force generated by the main shock absorber 4 under the action of the isolator 63 can be buffered and shock-absorbed.

[0036] Furthermore, two sets of connecting screws 62 can be provided and fixedly connected to the top or side of the upper support 5. The two sets of connecting screws 62 and the corresponding number of isolators 63 can improve the radial torsional strength of the seismic isolation mechanism 6, thereby preventing a single connecting screw 62 from breaking due to radial torsional force when used in a harsh shock absorption environment.

[0037] At the same time, the mounting seat 61 can be fixed to the off-road vehicle frame by bolts, and a plurality of isolators 63 can be provided, evenly distributed between the mounting seat 61 and the off-road vehicle frame, so that the isolators 63 can be in direct contact with the off-road vehicle frame, thereby enhancing the isolation effect under the action of multiple isolators 63.

[0038] More specifically, the seismic isolator 63 is composed of an outer sheath 631 , a gasket 632 and a lead rod 633 , and the outer sheath 631 is sleeved on the outside of the connecting screw 62 through the gasket 632 , and both the gasket 632 and the outer sheath 631 are annular.

[0039] Among them, the gasket 632 is composed of multiple elastic steel sheets and rubber rings superimposed on each other, and is fixed by the outer sheath 631. Since the elastic steel sheets and rubber rings used in the gasket 632 fit tightly, the radial torsional resistance of the gasket 632 can be improved under the action of the lead rod 633.

[0040] Furthermore, the elastic steel sheet used for the gasket 632 can also be annular and wavy. Therefore, under the action of the wavy elastic steel sheet and the rubber ring, the seismic isolation and buffering effect of the seismic isolator 63 is better, thereby reducing the vibration transmitted to the frame of the off-road vehicle, thereby improving the driving comfort of the vehicle.

[0041] The working principle of the present invention is as follows: after the isolator 63 and the mounting base 61 of the isolation mechanism 6 are sequentially passed through the connecting screw 62 and assembled with the upper support 5, the isolation mechanism 6 can be fixedly installed by the cooperation of the fixing nut and the connecting screw 62. After the installation is completed, the mounting base 61 cooperates with the support arm 1 to realize the installation of the multiple shock-absorbing structure and the off-road vehicle;

[0042] During use, the vibrations generated by the off-road vehicle are absorbed and reduced by the main shock absorber 4. During this process, the shock-absorbing spring 22 is compressed by the lower support 3 hinged at the bottom of the main shock absorber 4. The reaction force generated by the compression of the shock-absorbing spring 22 causes the lower support 3 to move backward. The shock-absorbing spring 22 on the rear side of the lower support 3 cooperates with the damping effect of the main shock absorber 4 itself to achieve multiple shock absorption.

[0043] When the shock-absorbing structure is working, the main shock absorber 4 will generate a lifting force, and a shock isolator 63 is installed between the bottom of the mounting seat 61 and the upper support 5. The shock isolator 63 is composed of a gasket 632 and a lead rod 633, and the gasket 632 is composed of an elastic steel sheet and a rubber ring. Therefore, the lifting force is buffered and absorbed through the cooperation of the elastic steel sheet and the rubber ring, avoiding direct action on the off-road vehicle frame, thereby improving driving comfort.

[0044] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A multi-shock absorption structure for an off-road vehicle, characterized in that: include: A support arm (1) and a lower support (3) arranged at the bottom of a main shock absorber (4) and hinged to the main shock absorber (4), a guide rod (21) being inserted into the lower support (3), and an upper support (5) being hinged to the top of the main shock absorber (4); It also includes a shock-absorbing spring (22) abutting against the lower support (3), and a shock-isolating mechanism (6) is fixedly mounted on the top of the upper support (5); The seismic isolation mechanism (6) comprises a mounting seat (61) and a seismic isolator (63), and a connecting screw (62) is fixedly connected to the top of the upper support (5); The seismic isolator (63) comprises a gasket (632) and a lead rod (633); the outer portion of the gasket (632) is sleeved with an outer sheath (631); the lead rod (633) is inserted into the interior of the gasket (632) and abuts against the outer sheath (631).

2. The off-road vehicle multiple shock-absorbing structure according to claim 1, characterized in that: The guide rod (21) is welded inside the support arm (1), and the shock-absorbing spring (22) is sleeved on the outside of the guide rod (21) and abuts against the lower support (3).

3. The off-road vehicle multiple shock absorption structure according to claim 1, characterized in that: At least two groups of the shock-absorbing springs (22) are provided, and the lower support (3) is slidably mounted on the support arm (1) via a guide rod (21).

4. The off-road vehicle multiple shock absorption structure according to claim 1, characterized in that: The connecting screw (62) is welded to the top of the upper support (5), and the mounting seat (61) is in contact with the upper support (5) via a vibration isolator (63).

5. The off-road vehicle multiple shock absorption structure according to claim 1, characterized in that: The outer sheath (631) is sleeved on the outside of the connecting screw (62) via a gasket (632), and both the gasket (632) and the outer sheath (631) are annular.

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