CN210830282U - Multi-cylinder damper - Google Patents

Abstract

The utility model relates to the technical field of dampers, in particular to a multi-cylinder damper, which comprises a cylinder body, wherein at least three through cavities are arranged on the cylinder body; piston rods which are arranged corresponding to the number of the cavities, wherein one end of each piston rod is arranged in each cavity; the first sealing structure is used for sealing a gap between one end of the piston rod, which is led out from the cavity, and the side wall of the cavity; the second sealing structure is used for sealing the other side opening end of the cavity relative to the first sealing structure; the piston rod is provided with a piston, the space in the cavity is divided into two parts, and a channel for the flow of a buffer medium between the two parts is provided; the leading-out ends of the piston rods are fixedly connected through the same mounting plate. The utility model discloses in, through setting up a plurality of cavitys on the cylinder body, can form a plurality of dampers that set up side by side, the effectual use and the installation cost that reduce the damper, at the in-process of cavity processing, the axiality is controlled comparatively easily, therefore the motion of a plurality of piston rods can realize parallel synchronism.

Description

Multi-cylinder damper

Technical Field

The utility model relates to a attenuator technical field, concretely relates to multi-cylinder attenuator.

Background

The damper is a device for providing motion resistance and consuming motion energy, and energy absorption and shock absorption by damping are applied to the industries of aerospace, aviation, war industry, firearms, automobiles and the like, and from the seventies of the twentieth century, people gradually transfer the technologies to structural engineering such as buildings, bridges, railways and the like, so that the development is very rapid.

At present, in the process of installing and using the dampers, according to the actual damping and energy consumption requirements, the condition that a plurality of dampers are used in parallel often exists, the dampers are installed one by one, the installation difficulty is increased to a certain extent, and meanwhile, certain labor cost can be consumed in order to ensure the consistency of the buffering directions of the plurality of dampers.

In view of the above problems, the present designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is engaged with the application of scholars to actively make research and innovation, so as to create a multi-cylinder damper, which is more practical.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multi-cylinder attenuator to solve the problem that points out among the background art.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a multi-cylinder damper, comprising:

the cylinder body is provided with at least three through cavities;

the number of the piston rods corresponds to that of the cavities, and one end of each piston rod is arranged in each cavity;

the first sealing structure is used for sealing a gap between one end of the piston rod, which is led out from the cavity, and the side wall of the cavity;

the second sealing structure is used for sealing the other side opening end of the cavity relative to the first sealing structure;

the piston rod is provided with a piston, the space in the cavity is divided into two parts, and a channel for the flow of a buffer medium between the two parts is provided;

the leading-out ends of the piston rods are fixedly connected through the same mounting plate.

Further, the first sealing structure comprises sealing plates corresponding to the cavities in number, and each sealing plate is independently arranged.

Furthermore, the end part of the piston rod is coaxially provided with a threaded section, the maximum outer diameter of the threaded section is smaller than the outer diameter of the piston rod, the threaded section penetrates through a hole position on the mounting plate and limits the penetration length through the end part of the piston rod, and the threaded section is locked through a nut after penetrating through the hole position.

Further, the outer diameter of the piston is smaller than the inner diameter of the cavity, and a gap between the piston and the cavity is used as a channel for the circulation of a buffer medium between the two parts of the cavity.

Further, each of the pistons is equidistant from the mounting plate.

Further, the axes of the cavities are uniformly distributed along a cylindrical surface.

Further, a chamfer structure is arranged at the edge position of the piston.

Furthermore, the second sealing structure is of an integral structure, and a hinge seat is arranged on the second sealing structure.

Further, the installation plate is also provided with a hinge seat.

Through the technical scheme of the utility model, can realize following technological effect:

the utility model discloses in, through setting up a plurality of cavitys on the cylinder body, can form a plurality of dampers that set up side by side, the effectual use and the installation cost that reduce the damper, at the in-process of cavity processing, the axiality is controlled comparatively easily, therefore the motion of a plurality of piston rods can realize parallel synchronism.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a side view of a multi-cylinder damper;

FIG. 2 is a cross-sectional view taken at m-m of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

reference numerals: the cylinder body 1, the cavity 11, the piston rod 2, the threaded section 21, the nut 22, the first sealing structure 3, the sealing plate 31, the second sealing structure 4, the hinge seat 41, the piston 5 and the mounting plate 6.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

As shown in fig. 1 and 2, a multi-cylinder damper includes a cylinder body 1, where the cylinder body 1 is provided with at least three through cavities 11, and in this embodiment, three cavities 11 are described as a specific embodiment; the number of the piston rods 2 corresponds to that of the cavities 11, and one end of each piston rod 2 is arranged in each cavity 11; the first sealing structure 3 is used for sealing a gap between one end of the piston rod 2 led out from the cavity 11 and the side wall of the cavity 11; the second sealing structure 4 is used for sealing the other side opening end of the cavity 11 relative to the first sealing structure 3; the piston rod 2 is provided with a piston 5, the space in the cavity 11 is divided into two parts, and a channel for the circulation of a buffer medium between the two parts is provided; the leading-out ends of the piston rods 2 are fixedly connected through the same mounting plate 6. The utility model discloses an in the above-mentioned embodiment, through set up a plurality of cavitys 11 on cylinder body 1, can form a plurality of dampers that set up side by side, under the prerequisite of guaranteeing the same damping effect, effectual use and the installation cost that has reduced the damper, at the in-process of cavity 11 processing, the axiality is controlled comparatively easily, consequently parallel synchronism can be realized to the motion of a plurality of piston rods 2, mounting panel 6 and second seal structure 4 can be connected with the object as the atress end.

As a preferable example of the above embodiment, referring to fig. 2, the first sealing structure 3 includes sealing plates 31 corresponding to the number of the cavities 11, and each sealing plate 31 is independently disposed, so that the sealing plates 31 can achieve better versatility without being affected by the distribution pattern of the cavities 11, and the sealing of the cavities 11 can be rapidly achieved.

Preferably, as shown in fig. 3, a threaded section 21 is coaxially arranged at an end of the piston rod 2, the maximum outer diameter of the threaded section 21 is smaller than the outer diameter of the piston rod 2, the threaded section 21 penetrates through a hole on the mounting plate 6 and limits the penetrating length through the end of the piston rod 2, and the threaded section is locked by a nut 22 after penetrating through the threaded section. The transition part between the thread section 21 and the piston rod 2 can be a plane perpendicular to the axis of the piston rod 2 or an inclined plane, and finally can be abutted against the mounting plate 6 for limiting.

Preferably, in the above embodiment, the outer diameter of the piston 5 is smaller than the inner diameter of the cavity 11, and the gap between the two is used as a passage for the flow of the buffer medium between the two parts of the cavity 11. The processing difficulty of the piston 5 is effectively reduced by the mode, and the deviation of medium flux caused by the gap at the edge is avoided compared with the situation that a circulation hole position is arranged on the piston. The distances between the pistons 5 and the mounting plate 6 are equal, stability of the damper in the buffering process can be guaranteed through the mode, and slight deviation of the piston rod 2 caused by stress difference among the pistons 5 is avoided.

As a preference of the above embodiment, the axes of the cavities 11 are uniformly distributed along a cylindrical surface, and the balance of the forces applied between the piston rods 2 can be ensured through the uniform distribution mode, and the balance is expressed in a single use and also in a probability distribution of multiple uses.

As a preference of the above embodiment, a chamfer structure is provided at an edge position of the piston 5, and the chamfer structure is used for smooth transition when the damping medium flows from one side of the cavity 11 to the other side, as shown in fig. 4, so as to ensure the smoothness in the buffering process. Wherein, fillet or right angle etc. can be selected to the lead angle structure, all are within the utility model discloses a protection scope.

As a preference of the above embodiment, referring to fig. 2, the second sealing structure 4 is a unitary structure and is provided with a hinge seat 41, the second sealing structure 4 is a unitary structure to achieve better sealing of the damper and facilitate installation of the damper, and the hinge seat 41 is preferably a ball hinge, so that a damping direction of the damper can be more likely. The mounting plate 6 is also preferably provided with a hinge seat 41, and the hinge seat 41 is used in cooperation with the hinge seat 41 of the second sealing structure 4.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. A multi-cylinder damper, comprising:

the cylinder body (1), wherein at least three through cavities (11) are arranged on the cylinder body (1);

the number of the piston rods (2) corresponds to that of the cavities (11), and one end of each piston rod (2) is arranged in each cavity (11);

the first sealing structure (3) is used for sealing a gap between one end, led out from the cavity (11), of the piston rod (2) and the side wall of the cavity (11);

the second sealing structure (4) is used for sealing the other side opening end of the cavity (11) relative to the first sealing structure (3);

the piston rod (2) is provided with a piston (5), the space in the cavity (11) is divided into two parts, and a channel for the flow of a buffer medium between the two parts is provided;

the leading-out ends of the piston rods (2) are fixedly connected through the same mounting plate (6).

2. Multi-cylinder damper according to claim 1, characterized in that the first sealing structure (3) comprises a number of sealing plates (31) corresponding to the number of cavities (11), each sealing plate (31) being provided independently.

3. A multi-cylinder damper according to claim 1, characterized in that the end of the piston rod (2) is coaxially provided with a threaded section (21), the maximum outer diameter of the threaded section (21) is smaller than the outer diameter of the piston rod (2), the threaded section (21) penetrates through a hole on the mounting plate (6), the penetrating length is limited by the end of the piston rod (2), and the threaded section is locked by a nut (22) after penetrating.

4. A multi-cylinder damper according to claim 1, characterized in that the outer diameter of the piston (5) is smaller than the inner diameter of the chamber (11), and the gap between them serves as a passage for the flow of a damping medium between the two parts of the chamber (11).

5. Multi-cylinder damper according to claim 1 or 4, characterized in that each piston (5) is equidistant from the mounting plate (6).

6. Multi-cylinder damper according to claim 1, in which the axes of the chambers (11) are uniformly distributed along a cylindrical surface.

7. Multi-cylinder damper according to claim 4, characterized in that chamfered structures are provided at the edge positions of the pistons (5).

8. Multi-cylinder damper according to claim 1, in which said second closing structure (4) is a unitary structure and is provided with a hinged seat (41) thereon.

9. Multi-cylinder damper according to claim 8, characterized in that the mounting plate (6) is also provided with a hinged seat (41).

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