CN218582136U - Damping force adjusting mechanism and damper with hand wheel for adjusting damping force - Google Patents

Abstract

The utility model discloses a damping force adjustment mechanism and hand wheel regulation damping force's bumper shock absorber, the hydraulic cylinder comprises an oil cylinder, the gas cylinder, the reset spring that piston rod and drive piston rod reset, be equipped with sealing member and backflow passage on the piston rod, still including the backward flow chamber, backflow passage is last to be equipped with backward flow hole and throttle needle, the piston rod is located the outer one end of hydro-cylinder and is equipped with the regulation seat, throttle needle and regulation seat screw-thread fit, it is equipped with the assembly groove and rotates the adjusting handle who sets up on the assembly groove to adjust the seat, it is spacing with adjusting handle circumference, the axial can slide relatively, be equipped with dry gear groove on the adjusting handle, still be equipped with on the regulation seat and be used for with gear groove complex gear round pin, one side that adjusting handle kept away from the gear round pin is inconsistent with the assembly groove inner wall, it has the gear structure, can the person of facilitating the use control adjusting handle pivoted range, and can also prevent that adjusting handle from rotating by oneself.

Description

Damping force adjusting mechanism and damper for adjusting damping force by hand wheel

Technical Field

The utility model relates to a bumper shock absorber technical field, in particular to bumper shock absorber of damping force adjustment mechanism and hand wheel adjusting damping force.

Background

In the prior art, the patent number is '201922499856.9', and the patent name is: damping adjustable rear shock absorber of outband external gas cylinder, including the damper cylinder, the outside intercommunication of damper cylinder has the gas cylinder, be provided with the throttle cover in the damper cylinder, the throttle control needle slides and wears to establish and form the clearance between damper cylinder and the throttle cover, the aperture business turn over of seting up on the liquid in the damper cylinder passes through the throttle cover inner wall, the damper cylinder afterbody is provided with and restores adjusting hand wheel, restore adjusting hand wheel and throttle control needle and connect, it rotates to restore adjusting hand wheel, it is close to or keeps away from the throttle cover to drive the throttle control needle, external gas cylinder passes through the pipeline and connects, however, at least, there are following defects:

1. when the damper is used, the adjusting hand wheel is easy to rotate by itself due to shaking of a vehicle, so that the throttling adjusting needle is loosened, the damper needs to be adjusted frequently, and the use experience is poor;

2. the rotation amplitude of the hand wheel is not easy to control by adjusting, and no specific gear structure is provided.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract and the title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the present application, and such simplifications or omissions cannot be used to limit the scope of the present invention.

In view of the problems existing in the prior art, the utility model is provided.

Therefore, the utility model aims at providing a damping force adjustment mechanism and hand wheel adjust damping force's bumper shock absorber.

Adjust the not hard up needle for solving the throttle, the hand wheel adjusts the wayward technical problem of its pivoted range, the utility model provides a following technical scheme: a damping force adjusting mechanism comprises a piston unit, wherein the piston unit comprises an oil cylinder, an air cylinder, a piston rod, a return spring and a sealing seat, the oil cylinder and the air cylinder are communicated, the sealing seat is arranged on the oil cylinder, and the piston rod penetrates through the sealing seat and extends into the oil cylinder; the adjusting unit comprises an adjusting seat, an assembling groove, an adjusting hand wheel and a throttling needle, wherein the adjusting seat is arranged at one end of the piston rod, which is positioned outside the oil cylinder, the throttling needle is in threaded fit with the adjusting seat, the adjusting seat is provided with the assembling groove, and the assembling groove is rotatably provided with the adjusting hand wheel.

As a preferred scheme of the damping force adjustment mechanism of the present invention, wherein: and a sealing element in sealing fit with the inner wall of the oil cylinder is arranged at one end of the piston rod, which is positioned in the oil cylinder.

As a preferred scheme of damping force adjustment mechanism, wherein: a backflow cavity is arranged between the sealing element and the sealing seat.

As a preferred scheme of the damping force adjustment mechanism of the present invention, wherein: the middle part of the piston rod is hollowed to form a backflow channel communicated with the oil cylinder, the throttle needle is arranged in the backflow channel, and a backflow hole communicated with the backflow cavity is formed in the side wall of the backflow channel.

As a preferred scheme of the damping force adjustment mechanism of the present invention, wherein: and one side of the adjusting hand wheel facing the throttle needle is provided with gear grooves which are arranged at intervals along the circumferential direction.

As a preferred scheme of the damping force adjustment mechanism of the present invention, wherein: the adjusting seat is provided with a gear pin matched with the gear groove, and one side of the adjusting hand wheel, which is far away from the gear pin, is contacted with the inner wall of the assembling groove.

As a preferred scheme of damping force adjustment mechanism, wherein: the backflow channel is internally provided with a throttling sleeve, the throttling sleeve is provided with a flow guide channel, and the backflow hole is communicated with the oil cylinder through the flow guide channel.

As a preferred scheme of the damping force adjustment mechanism of the present invention, wherein: the middle of the adjusting hand wheel is provided with a slot, one end of the throttle needle is inserted into the slot, the throttle needle is provided with a first limiting surface, and the slot is provided with a second limiting surface.

For being applied to the vehicle with damping force adjustment mechanism, the utility model provides a following technical scheme: the utility model provides a bumper shock absorber of damping force is adjusted to hand wheel, still includes, installation linkage unit, including mount pad and oil duct, the gas cylinder is fixed or integrative to be set up on the mount pad, hydro-cylinder threaded connection be in on the mount pad, the oil duct will gas cylinder and hydro-cylinder switch on, and set up and be in on the mount pad

As a preferred scheme of the bumper shock absorber of damping force is adjusted to the hand wheel, wherein: and the mounting seat is also provided with a throttle valve for controlling the opening and closing of the oil duct.

The utility model has the advantages that: the utility model provides a damper of damping force is adjusted to hand wheel, it has the gear structure, can the person of facilitating the use control adjusting handle pivoted range to can also prevent adjusting handle from rotating by oneself

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is an overall structural view of a shock absorber in which a damping force is adjusted by a hand wheel.

Fig. 2 is a cross-sectional view of a shock absorber with a hand wheel adjusting damping force.

Fig. 3 is a structural view of a portion a of the damping force adjustment mechanism.

Fig. 4 is a B-portion configuration diagram of the damping force adjustment mechanism.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 4, in order to provide a first embodiment of the present invention, the embodiment provides a damping force adjusting mechanism, which includes a piston unit 100, including an oil cylinder 101, an air cylinder 102, a piston rod 103, a return spring 104 and a seal seat 105; the adjusting unit 200 comprises an adjusting seat 201, an assembling groove 202, an adjusting handwheel 203 and a throttle needle 204.

Specifically, an oil cylinder 101 is communicated with an air bottle 102, a sealing seat 105 is arranged on the oil cylinder 101, and a piston rod 103 penetrates through the sealing seat 105 and extends into the oil cylinder 101; the piston rod 103 is in sealing fit with the sealing seat 105 and can slide relative to the sealing seat 105, the adjusting seat 201 is arranged at one end, located outside the oil cylinder 101, of the piston rod 103, the throttling needle 204 is in threaded fit with the adjusting seat 201, the adjusting seat 201 is provided with the assembling groove 202, the assembling groove 202 is rotatably provided with the adjusting hand wheel 203, the throttling needle 204 and the adjusting hand wheel 203 are circumferentially limited and can axially slide relative to each other, and the two opposite sides of the adjusting hand wheel 203 are exposed out of the groove openings, so that the adjusting hand wheel is more convenient to adjust.

Example 2

Referring to fig. 2 to 4, a second embodiment of the present invention is different from the first embodiment in that: also included are. In the above embodiment, a damping force adjusting mechanism further includes a sealing member 101a, a return cavity 105a, a return passage 103a, a return hole 103a-1, a notch 203a, a notch 201a, a throttle sleeve 103a-2, a flow guide passage 103a-21, a slot 203b, a first limiting surface 204a, and a second limiting surface 203b-1.

Specifically, a sealing element 101a which is in sealing fit with the inner wall of the oil cylinder 101 is arranged at one end of the piston rod 103, which is located in the oil cylinder 101, a backflow cavity 105a is arranged between the sealing element 101a and the sealing seat 105, a backflow channel 103a which is communicated with the oil cylinder 101 is formed by hollowing out the middle part of the piston rod 103, the throttle needle 204 is arranged in the backflow channel 103a, and a backflow hole 103a-1 which is communicated with the backflow cavity 105a is arranged on the side wall of the backflow channel 103 a.

Furthermore, one side of the adjusting handwheel 203 facing the throttle needle 204 is provided with gear grooves 203a arranged at intervals along the circumferential direction, the adjusting seat 201 is provided with gear pins 201a used for being matched with the gear grooves 203a, one side of the adjusting handwheel 203 far away from the gear pins 201a is contacted with the inner wall of the assembling groove 202, a throttle sleeve 103a-2 is arranged in the backflow channel 103a, a flow guide channel 103a-21 is arranged on the throttle sleeve 103a-2, the backflow hole 103a-1 is communicated with the oil cylinder 101 through the flow guide channel 103a-21, the adjusting handwheel 203 rotates to drive the throttle needle 204 to be close to or far away from the throttle sleeve 103a-2, so that the flow guide channel 103a-21 is shielded or opened, the conduction quantity of the backflow hole 103a-1 and the oil cylinder 101 is controlled, the middle part of the adjusting handwheel 203 is provided with a slot 203b, one end of the throttle needle 204 is inserted into the slot 203b, the throttle needle 204 is provided with a first limit surface 204a, the slot 203b is provided with a second limit surface 203b, the first limit surface 204a and the second limit surface 203b-1 are matched, so that the adjusting handwheel is convenient to adjust the handwheel, and is relatively simple in the handwheel, and relatively simple in the axial direction, and the synchronous in the installation and the installation of the handwheel structure is not influenced.

Adopt above-mentioned technical scheme, during the use, it can drive the throttle needle and rotate together to rotate through adjusting the hand wheel rotation, because of throttle needle and regulation seat screw-thread fit, so the throttle needle can be in return flow channel relative slip, thereby the conduction volume of control backward flow hole and hydro-cylinder, thereby realize the regulation of backward flow damping force size, simple structure adjusts also more conveniently, need not be with the help of appurtenance, and feel better when the cooperation through gear round pin and gear groove makes its regulation, the range of adjustment is also more easily controlled, and gear round pin and gear groove cooperation can also realize the effect of location when not adjusting at ordinary times, prevent that adjusting the hand wheel from rotating by oneself, make it more stable when using.

Example 3

Referring to fig. 1 and 2, a third embodiment of the present invention is different from the previous embodiment in that: a damper for adjusting damping force by a handwheel further comprises a mounting connection unit 300, which comprises a mounting seat 301, an oil passage 302 and a throttle valve 302a.

Specifically, the gas cylinder 102 is fixed or integrally arranged on the mounting base 301, the oil cylinder 101 is in threaded connection with the mounting base 301, the oil duct 302 conducts the gas cylinder 102 and the oil cylinder 101 and is arranged on the mounting base 301, and the mounting base 301 is further provided with a throttle valve 302a for controlling the opening and closing of the oil duct 302.

By adopting the technical scheme, the opening and closing size of the oil duct can be controlled through the throttle valve in the using process, so that the damping force of the piston rod during compression is controlled.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. A damping force adjustment mechanism is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the piston unit (100) comprises an oil cylinder (101), an air bottle (102), a piston rod (103), a return spring (104) and a sealing seat (105), the oil cylinder (101) and the air bottle (102) are communicated, the sealing seat (105) is arranged on the oil cylinder (101), and the piston rod (103) penetrates through the sealing seat (105) and extends into the oil cylinder (101);

adjusting unit (200), including adjusting seat (201), assembly groove (202), adjusting hand wheel (203) and throttle needle (204), it sets up to adjust seat (201) piston rod (103) are located the outer one end of hydro-cylinder (101), throttle needle (204) with adjust seat (201) screw-thread fit, be equipped with on adjusting seat (201) assembly groove (202), it is provided with to rotate on assembly groove (202) adjusting hand wheel (203).

2. The damping force adjusting mechanism according to claim 1, characterized in that: and a sealing element (101 a) in sealing fit with the inner wall of the oil cylinder (101) is arranged at one end of the piston rod (103) in the oil cylinder (101).

3. The damping force adjusting mechanism according to claim 2, characterized in that: a backflow cavity (105 a) is arranged between the sealing element (101 a) and the sealing seat (105).

4. The damping force adjusting mechanism according to claim 3, characterized in that: the middle of the piston rod (103) is hollowed to form a backflow channel (103 a) communicated with the oil cylinder (101), the throttle needle (204) is arranged in the backflow channel (103 a), and a backflow hole (103 a-1) used for being communicated with the backflow cavity (105 a) is formed in the side wall of the backflow channel (103 a).

5. The damping force adjusting mechanism according to claim 4, wherein: and gear grooves (203 a) which are arranged at intervals along the circumferential direction are formed in one side of the adjusting hand wheel (203) facing the throttling needle (204).

6. The damping force adjusting mechanism according to claim 5, characterized in that: adjust on seat (201) be provided with be used for with gear groove (203 a) complex gear round pin (201 a), adjusting handle (203) keep away from one side of gear round pin (201 a) with assembly groove (202) inner wall contacts.

7. The damping force adjusting mechanism according to claim 5 or 6, characterized in that: a throttling sleeve (103 a-2) is arranged in the backflow channel (103 a), a flow guide channel (103 a-21) is arranged on the throttling sleeve (103 a-2), and the backflow hole (103 a-1) is communicated with the oil cylinder (101) through the flow guide channel (103 a-21).

8. The damping force adjusting mechanism according to claim 7, characterized in that: a slot (203 b) is formed in the middle of the adjusting hand wheel (203), one end of the throttling needle (204) is inserted into the slot (203 b), a first limiting surface (204 a) is arranged on the throttling needle (204), and a second limiting surface (203 b-1) is arranged on the slot (203 b).

9. A damper for adjusting damping force with a handwheel, comprising a damping force adjusting mechanism according to any one of claims 1 to 8, characterized in that: also comprises the following steps of (1) preparing,

installation connecting element (300), including mount pad (301) and oil duct (302), gas cylinder (102) are fixed or integrative setting is in on mount pad (301), hydro-cylinder (101) threaded connection be in on mount pad (301), oil duct (302) will gas cylinder (102) and hydro-cylinder (101) switch on, and set up on mount pad (301).

10. A damper with a hand wheel for adjusting damping force as claimed in claim 9, wherein: the mounting seat (301) is further provided with a throttle valve (302 a) for controlling the opening and closing of the oil passage (302).

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