Multi-directional displacement damper and damping support structure

Abstract

The present invention belongs to the technical field of buffering and damping, and particularly relates to a multi-directional displacement damper and a damping support structure, comprising a fixed seat, a damping movable member and an external connection carrier plate; a cavity with an upward opening is provided in the fixed seat, and the cavity is filled with damping liquid; the lower end of the damping movable member slides upward, downward, leftward and rightward into the cavity and into the damping liquid; a gap is provided between the bottom end of the damping movable member and the bottom wall of the cavity for the damping movable member to move downward; the external connection carrier plate is connected to the upper end of the damping movable member by sliding forward and backward. The multi-directional displacement damper can generate damping forces in at least two directions, and the protected structure supported on the external connection carrier plate can form displacements in three directions, which can effectively prevent the damper from getting stuck during damping movement and ensure the effectiveness of the damper. When the damping movable member of each damper moves forward and backward, it will be subjected to the damping force in the left and right directions of the damping movable member of the adjacent damper, thereby realizing a three-dimensional damping function.

Description

Technical Field

[0001] The invention belongs to the technical field of buffering and damping, and in particular relates to a multi-directional displacement damper and a damping support structure. Background Art

[0002] Earthquakes, as extremely destructive natural disasters, have great potential hazards for equipment, facilities and building structures. In addition, environmental vibrations and equipment vibrations often affect people's comfort and the normal use of other equipment and facilities. In view of the negative impact of earthquakes or vibrations, it is often necessary to use seismic isolation (vibration) shock absorption (vibration) technology to reduce the negative impact of earthquakes or vibrations. Dampers are an indispensable component of seismic isolation (vibration) shock absorption (vibration) technology, and viscous dampers, as widely used speed-related energy-consuming devices, can be divided into two types: the first is a piston-type cylinder damper, which is an axially used damper, and the second is a moving body moving at a certain speed in a container containing damping fluid, thereby generating a damping force. This damper has a large output damping force, but there is also a limitation in the direction of movement. This limitation can not only lead to the failure of the damping function, but may also cause the seismic isolation (vibration) shock absorption (vibration) system to "get stuck". Summary of the invention

[0003] The purpose of the present invention is to provide a multi-directional displacement damper, aiming to solve the problem that the current damper is restricted in movement direction or even gets stuck.

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a multi-directional displacement damper, comprising a fixed seat, a damping movable member and an external connection carrier plate; a cavity with an upward opening is provided in the fixed seat, and the cavity is filled with damping fluid; the lower end of the damping movable member slides upward, downward, leftward and rightward into the cavity and into the damping fluid; a gap is provided between the bottom end of the damping movable member and the bottom wall of the cavity for the damping movable member to move downward; the external connection carrier plate is slidably connected to the upper end of the damping movable member back and forth.

[0005] Furthermore, a panel is provided at the top of the damping movable member, and the external connection carrier plate is slidably connected to the panel.

[0006] Furthermore, the external connection carrier plate and the panel are directly connected to a guide rail pair, and the external connection carrier plate moves forward and backward along the guide rail of the guide rail pair.

[0007] Furthermore, the cavity is provided with two mutually parallel limiting surfaces, and the damping movable member has at least one fitting surface, which fits with one of the limiting surfaces of the cavity and slides up and down and left and right along the limiting surface.

[0008] Furthermore, the cross section of the cavity is rectangular, the cross section of a section of the damping movable member extending into the cavity is square, and the length of the cross section of the damping movable member is smaller than the length of the cross section of the cavity.

[0009] Furthermore, the fitting surface of the damping movable member is further provided with at least one contact gasket, and the contact gasket fits with a limiting surface of the cavity.

[0010] Furthermore, at least one partition is provided in the cavity, which divides the cavity into at least two cavities; the damping movable member is provided with at least one dividing groove, which divides the damping movable member into at least two connecting parts, and each connecting part extends into the corresponding cavity.

[0011] Furthermore, a notch is provided at the lower end of the damping movable member, and the bottom wall of the notch forms a damping surface for upward movement damping; the notch extends to the upper end of the damping movable member, so that the damping movable member is in a U-shaped structure or a U-shaped structure.

[0012] Furthermore, an anti-overflow cavity is also provided at the upper end of the fixing seat, and the cross-section of the cavity of the anti-overflow cavity is larger than the cross-section of the cavity body.

[0013] The above one or more technical solutions in the multi-directional displacement damper provided by the embodiment of the present invention have at least the following technical effects:

[0014] 1. Under the action of earthquake or vibration, when the protected structure is displaced up and down relative to the ground or non-protected structure, since the front and rear directions of the external connection carrier plate are not affected by external forces, the external connection carrier plate fixedly connected to the protected structure transmits the force vertically to the damping movable member, so that the protected structure and the damping movable member move vertically, and the damping fluid provides vertical damping force, which is transmitted to the protected structure through the damping movable member, thereby weakening and offsetting the external force on the protected structure.

[0015] 2. Under the action of earthquake or vibration, when the protected structure is displaced relative to the ground or non-protected structure, the damping movable part moves left or right in the cavity, and the damping fluid forms a left or right horizontal damping force on the damping movable part, which is transmitted to the protected structure through the damping movable part, thereby weakening and offsetting the external force on the protected structure.

[0016] 3. Under the action of earthquake or vibration, when the protected structure and the ground or the unprotected structure are displaced relative to each other forward and backward, since the external connection carrier plate and the damping movable member are slidably connected forward and backward, the external connection carrier plate and the damping movable member are displaced forward and backward, and the external connection carrier plate fixedly connected to the protected structure is displaced relative to each other forward and backward, releasing the relative displacement between the protected structure and the ground or the unprotected structure in this direction. Therefore, in this direction, the damping movable member has no relative displacement inside the cavity, and the damper does not output damping force.

[0017] In summary, the multi-directional displacement damper of the present invention can generate damping forces in at least two directions, and the protected structure supported on the external connection carrier plate can form displacements in three directions, which can effectively prevent the damper from getting stuck during damping movement and ensure the effectiveness of the damper.

[0018] A damping support structure comprises at least two groups of multi-directional displacement dampers and a supporting carrier; adjacent multi-directional displacement dampers are arranged perpendicular to each other; and the supporting carrier is connected to an external connection carrier plate of each multi-directional displacement damper.

[0019] The above one or more technical solutions in the damping support structure provided by the embodiment of the present invention have at least the following technical effects:

[0020] In engineering applications, at least two dampers that are perpendicular to each other are used to support the installation of the protective structure. When the damping movable part of each damper moves forward and backward, it will be subject to the damping force in the left and right directions of the damping movable part of the adjacent damper, thereby realizing a three-dimensional damping function. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A structural diagram of a multi-directional displacement damper provided in an embodiment of the present invention.

[0023] Figure 2 A cross-sectional view of a multi-directional displacement damper provided by an embodiment of the present invention.

[0024] Figure 3 A structural diagram of the damping element portion of the multi-directional displacement damper provided in an embodiment of the present invention.

[0025] Figure 4 A cross-sectional view of another embodiment of a multi-directional displacement damper provided by an embodiment of the present invention.

[0026] Figure 5 A structural diagram of the fixing seat of the multi-directional displacement damper provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, 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 the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the embodiments of the present invention, 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 or an electrical connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] In one embodiment of the present invention, referring to Figure 1 and Figure 2, a damper for multi-directional displacement, comprises a fixed seat 100, a damping movable member 200 and an external connection carrier plate 300. A cavity 101 with an opening facing upward is provided in the fixed seat 100, and a damping liquid (not shown in the accompanying drawings) is filled in the cavity 101. The lower end of the damping movable member 200 can slide into the cavity 101 up, down, left and right, and stretch into the damping liquid. A gap is provided between the bottom end of the damping movable member 200 and the bottom wall of the cavity 101 for the damping movable member 200 to move downward. The external connection carrier plate 300 is slidably connected to the upper end of the damping movable member 200 forward and backward. The damper of this embodiment, under the action of earthquake or vibration, when the protected structure and the ground or the non-protected structure are displaced up and down relative to each other, since the front and rear directions of the external connection carrier plate 300 are not affected by external forces, the external connection carrier plate 300 fixedly connected to the protected structure transmits force vertically to the damping movable member 200, so that the protected structure and the damping movable member 200 move in the vertical direction, so that the damping fluid provides a vertical damping force, and transmits it to the protected structure through the damping movable member 200, thereby achieving the effect of weakening and offsetting the external force on the protected structure. When the protected structure and the ground or the non-protected structure are displaced left and right relative to each other, the damping movable member 200 moves left or right in the cavity 101, and the damping fluid forms a left or right horizontal damping force on the damping movable member 200, and transmits it to the protected structure through the damping movable member 200, thereby achieving the effect of weakening and offsetting the external force on the protected structure. When the protected structure and the ground or the non-protected structure are displaced relative to each other, since the external connection carrier plate 300 and the damping movable member 200 are connected to each other in a slidable manner, the external connection carrier plate 300 and the damping movable member 200 are displaced relative to each other, and the external connection carrier plate 300 fixedly connected to the protected structure is displaced relative to each other, releasing the relative displacement between the protected structure and the ground or the non-protected structure in this direction. Therefore, in this direction, the damping movable member has no relative displacement inside the cavity, and the damper does not output damping force. Therefore, the multi-directional displacement damper of this embodiment can generate damping force in at least two directions, and the protected structure supported on the external connection carrier plate 300 can be displaced in three directions, which can effectively prevent the damper from getting stuck during damping movement and ensure the effectiveness of the damper.

[0032] For further information, please refer to Figure 1 to Figure 4 A panel 400 is also provided at the top of the damping moving member 200, and the external connection carrier plate 300 is slidably connected to the panel 400. In this embodiment, the panel 400 is slidably connected to the external connection carrier plate 300, so that the cross-sectional area of ​​the damping moving member 200 can be reduced while ensuring the connection area of ​​the external connection carrier plate 300, thereby reducing the overall volume of the damping moving member 200.

[0033] Further, please refer to Figure 1 to Figure 4In order to increase the smoothness of movement of the external connection carrier 300 and the panel 400, a guide rail pair 500 is directly connected between the external connection carrier 300 and the panel 400, and the external connection carrier 300 moves forward and backward along the guide rail of the guide rail pair 500. More specifically, the guide rail of the guide rail pair 500 is connected to the bottom of the external connection carrier, and the slider is connected to the upper surface of the panel 400.

[0034] Further, a specific embodiment of the connection between the damping moving member 200 and the cavity 101 is specifically referred to Figure 1 to Figure 4 The cavity 101 is provided with two mutually parallel limiting surfaces, and the damping moving member 200 has at least one contact surface 201, which contacts with a limiting surface of the cavity 101 and slides up and down and left and right along the limiting surface. In this embodiment, the limiting surface is used to limit the contact surface 201, so that the damping moving member 200 can move in the cavity and prevent the damping moving member 200 from rotating in the cavity 101; and the problem of the damping moving member 200 being stuck due to tilting at any angle is avoided.

[0035] Further, refer to Figure 1 to Figure 4 The cross section of the cavity 101 is rectangular, the cross section of the damping moving member 200 extending into the cavity is square, and the length of the cross section of the damping moving member 200 is smaller than the length of the cross section of the cavity 100. Therefore, the damping moving member 200 can move left and right in the cavity 101.

[0036] Furthermore, the cross-sections of the cavity 101 and the damping moving member 200 are waist-shaped. The cross-section of the cavity 101 can also be strip-shaped. The cross-section of the damping moving member 200 can also be D-shaped.

[0037] In order to reduce the friction force of the damping moving member 200 sliding in the cavity 101, so as to reduce the wear problem between the damping moving member 200 and the inner wall of the cavity 101; at least one contact gasket 202 is also provided on the fitting surface 201 of the damping moving member 200, and the contact gasket 202 fits with a limiting surface of the cavity. Figure 3 , through the contact gasket 202, the contact area between the damping moving part 200 and the damping moving part 200 is reduced, thereby reducing wear.

[0038] Furthermore, when the cross sections of the cavity 101 and the damping movable member 200 are both square, strip-shaped or waist-shaped, contact pads 202 are provided on both side surfaces of the damping movable member 200, thereby further reducing friction.

[0039] Furthermore, the plane diameter of the contact pad 202 is smaller than 1 / 4 of the length of the damping moving member 200 .

[0040] A more preferred embodiment of the multi-directional displacement damper is shown in FIG. Figure 4 and Figure 5At least one partition 102 is also provided in the cavity 101, and the partition 102 divides the cavity into at least two cavities. The damping moving member 200 is provided with at least one cutting groove, and the cutting groove divides the damping moving member 200 into at least two connecting parts 203, and each connecting part 203 extends into the corresponding cavity. In this embodiment, more than two cavities are used to limit the damping moving member 200, thereby increasing the stability of its damping.

[0041] More specifically, see Figure 4 The damping movable member 200 is composed of two longitudinally arranged strip plates, and a dividing groove is formed between the two strip plates. When the damping movable member 200 extends into the cavity 101, the strip plates are actually inserted into the cavity 101, and the two strip plates are located on both sides of the partition 102.

[0042] Furthermore, in order to increase the damping force when the damping moving member 200 moves upward, a notch 204 is further provided at the lower end of the damping moving member 200. Figure 3 The bottom wall of the notch 204 forms a damping surface for upward movement damping. Therefore, the obstructed area of ​​the damping moving member 200 for upward movement is increased, thereby increasing the damping force for upward movement and increasing the damping effect.

[0043] Further, refer to Figure 3 The notch 204 extends to the upper end of the damping moving member 200, so that the damping moving member 200 is in a U-shaped structure or a U-shaped structure. In this embodiment, when the damping moving member 200 moves upward, the top wall of the notch is prevented from affecting the damping surface, further ensuring the damping effect of the damping moving member 200.

[0044] Furthermore, in order to prevent the damping moving member 200 from bringing the damping fluid out of the cavity 101 when it is displaced, the damper of this embodiment is further provided with an overflow prevention cavity 103 at the upper end of the fixed seat 100. The cross section of the cavity of the overflow prevention cavity 103 is larger than the cross section of the cavity 101. For details, please refer to Figure 2 , Figure 4 and Figure 5 Therefore, when the damping movable member 200 moves, the damping fluid brought upward will be retained in the anti-overflow cavity 103 and flow back into the cavity 101, thereby effectively avoiding the problem of damping fluid overflow.

[0045] Further, refer to Figure 5The base 100 includes a bottom plate 110, a first square tube 120, a waist plate 130 and a second square tube 140; the bottom plate 110 is connected to the bottom end of the first square tube 120, the waist plate 130 is arranged at the top end of the first square tube 120; the second square tube 140 is arranged on the upper surface of the waist plate 130. The outer dimensions of the waist plate 130 are larger than the outer dimensions of the first square tube 120, the outer dimensions of the second square tube 140 are larger than the outer dimensions of the first square tube 120, and smaller than the outer dimensions of the waist plate 130, the second square tube 140 and the waist plate 130 form an anti-overflow cavity 103, and the waist plate 130 is provided with an air avoidance opening.

[0046] A damping support structure includes at least two groups of multi-directional displacement dampers and a support carrier; adjacent multi-directional displacement dampers are arranged perpendicularly to each other; the support carrier is connected to an external connection carrier plate of each multi-directional displacement damper. Specifically, in engineering applications, at least two dampers arranged perpendicularly to each other are used to support the installation of the protection structure. When the damping moving part of each damper moves forward and backward, it will be subject to the damping force of the damping moving part of the adjacent damper in the left and right directions, thereby realizing a three-dimensional damping function. A good protective effect is achieved for the protected parts.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-directional displacement damper, characterized in that: The invention comprises a fixed seat, a damping movable member and an external connection carrier plate; a cavity with an opening facing upward is arranged in the fixed seat, and the cavity is filled with damping liquid; the lower end of the damping movable member slides upward, downward, leftward and rightward into the cavity and into the damping liquid; a gap is arranged between the bottom end of the damping movable member and the bottom wall of the cavity for the damping movable member to move downward; the external connection carrier plate is connected to the upper end of the damping movable member in a forward and backward sliding manner; a panel is also arranged at the top end of the damping movable member, and the external connection carrier plate is slidably connected to the panel; the external connection carrier plate and the panel are also directly connected to a guide rail pair, and the external connection carrier plate moves forward and backward along the guide rail of the guide rail pair; the cavity is provided with two mutually parallel limiting surfaces, and the damping movable member has at least one fitting surface, and the fitting surface fits with one of the limiting surfaces of the cavity and slides up, down, left and right along the limiting surface.

2. The multi-directional displacement damper according to claim 1, characterized in that: The cross section of the cavity is rectangular, the cross section of a section of the damping movable member extending into the cavity is square, and the length of the cross section of the damping movable member is smaller than the length of the cross section of the cavity.

3. The multi-directional displacement damper according to claim 1, characterized in that: The fitting surface of the damping movable member is further provided with at least one contact gasket, and the contact gasket fits with a limiting surface of the cavity.

4. The multi-directional displacement damper according to any one of claims 1 to 3, characterized in that: At least one partition is also provided in the cavity, and the partition divides the cavity into at least two cavities; the damping movable member is provided with at least one dividing groove, and the dividing groove divides the damping movable member into at least two connecting parts, and each connecting part extends into the corresponding cavity respectively.

5. The multi-directional displacement damper according to any one of claims 1 to 3, characterized in that: The lower end of the damping movable member is also provided with a notch, and the bottom wall of the notch forms a damping surface for upward movement damping; the notch extends to the upper end of the damping movable member, so that the damping movable member is in a U-shaped structure or a U-shaped structure.

6. The multi-directional displacement damper according to any one of claims 1 to 3, characterized in that: An anti-overflow cavity is also provided at the upper end of the fixing seat, and the cross section of the cavity of the anti-overflow cavity is larger than the cross section of the cavity body.

7. A damping support structure, characterized in that: It comprises at least two groups of multi-directional displacement dampers as described in any one of claims 1 to 6, and also comprises a supporting carrier; adjacent multi-directional displacement dampers are arranged perpendicular to each other; and the supporting carrier is connected to the external connection carrier plates of each multi-directional displacement damper.

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