Damping device

Abstract

The utility model relates to a damping device which comprises a first damping body which comprises an upper damping part, a lower damping part and supporting damping feet for connecting and supporting the upper damping part and the lower damping part. And the second vibration reduction body is limited between the upper vibration reduction piece and the lower vibration reduction piece to form a multi-stage vibration reduction structure. Based on the multi-stage vibration reduction principle, the multi-stage vibration reduction device can be well suitable for products such as a projector with a high-power output sound all-in-one machine and the like, solves the vibration reduction problems of single-end vibration conduction, two-end vibration conduction, rotation vibration conduction, high-frequency vibration and the like on the products, and is beneficial to the structure of the vibration reduction device. The swing is small, and the noise is low.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction, in particular to a vibration reduction device. Background Art

[0002] At present, the commonly used vibration reduction devices on the market are spring-type, which have the following disadvantages: first, they can only reduce the vibration amplitude, but not the vibration frequency; spring vibration reduction will cause noise problems and are not suitable for audio products; spring vibration reduction has large swings and requires sufficient swing space; and the manufacturing cost of spring vibration reduction is high. For products with rotating lifting devices, the vibration reduction device cannot be well combined with the rotating lifting device, and cannot solve the vibration problem during the rotating lifting process. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a vibration reduction device in view of the deficiencies of the above-mentioned prior art, which can effectively reduce the vibration amplitude, vibration frequency, noise, and swing range, and has a low manufacturing cost. It can be applied to products that require vibration reduction, such as audio products, projectors, or audio-projector all-in-one machines, and has a wide range of applications.

[0004] An embodiment of the utility model provides a vibration damping device, which includes: a first vibration damping body, including an upper vibration damping member, a lower vibration damping member and a supporting vibration damping foot that connects the upper vibration damping member and the lower vibration damping member to support each other; and a second vibration damping body, which is limited between the upper vibration damping member and the lower vibration damping member.

[0005] In some embodiments, the upper vibration damping member, the lower vibration damping member and the supporting vibration damping foot are integrally formed into a first vibration damping body.

[0006] In some embodiments, the first vibration damper and / or the second vibration damper is made of soft material.

[0007] In some embodiments, the initial contact between the second vibration damper and the first vibration damper is point-to-surface contact.

[0008] In some embodiments, the second vibration damping body is a sphere.

[0009] In some embodiments, the first connecting member is locked to the top surface of the upper vibration damping member, and the second connecting member is locked to the bottom surface of the lower vibration damping member.

[0010] In some embodiments, the first connecting member and the second connecting member are assembled by a locking member so as to be movable relative to each other.

[0011] In some of the embodiments, the first connecting member or the second connecting member is assembled on a lifting assembly.

[0012] In some of the embodiments, a limiting member for limiting the horizontal position of the second vibration damping body is provided between the upper vibration damping member and the lower vibration damping member.

[0013] In some embodiments, the first connecting member or the second connecting member has a limiting member.

[0014] Compared with the related art, the vibration reduction device provided in the embodiment of the utility model includes a first vibration reduction body, including an upper vibration reduction member, a lower vibration reduction member, and a support vibration reduction foot that connects the upper vibration reduction member and the lower vibration reduction member to support each other; and a second vibration reduction body, which is limited between the upper vibration reduction member and the lower vibration reduction member to form a multi-stage vibration reduction structure. Based on the multi-stage vibration reduction principle, it can be well applied to products such as projectors with built-in high-power output audio all-in-one machines, and solves the vibration reduction problems of such products, whether it is single-end vibration conduction, two-end vibration conduction, rotational vibration conduction or high-frequency vibration, and thanks to the structure of the vibration reduction device, it has small swing and low noise.

[0015] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objectives, and advantages of the present invention more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a structural diagram of the vibration reduction device of an embodiment of the utility model.

[0018] Figure 2 It is an exploded structural diagram of a rotating connecting rod multi-stage vibration reduction device according to an embodiment of the utility model.

[0019] Figure 3 It is an assembly cross-sectional structural diagram of the rotating connecting rod multi-stage vibration reduction device of the embodiment of the utility model.

[0020] Figure 4 It is an exploded structural diagram of the connecting rod multi-stage vibration reduction device of an embodiment of the utility model.

[0021] Figure 5 It is an assembly cross-sectional structural diagram of a connecting rod multi-stage vibration reduction device according to an embodiment of the utility model.

[0022] In the figure, 1, first vibration damping body; 2, second vibration damping body; 3, upper vibration damping member; 4, lower vibration damping member; 5, supporting vibration damping foot; 6, first connecting member; 7, second connecting member; 8, first positioning rod; 9, second positioning rod; 10, lifting bracket; 11, screw rod; 12, flange nut; 13, lower fixing plate; 14, motor; 15, upper fixing plate; 16, limit member; 17, annular groove; 18, annular convex edge; 19, upper bracket; 20, lower bracket; 21, connecting rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed by the present invention, some changes such as design, manufacturing or production based on the technical contents disclosed by the present invention are only conventional technical means, and should not be understood as insufficient contents disclosed by the present invention.

[0024] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present invention may be combined with other embodiments without conflict.

[0025] Unless otherwise defined, the technical terms or scientific terms involved in the present invention shall have the usual meanings understood by persons with ordinary skills in the technical field to which the present invention belongs. The words "one", "a", "a", "the" and the like involved in the present invention do not indicate a quantity limitation and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in the present invention are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device including a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in the present invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in the present invention refers to greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" may indicate: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present invention are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0026] like Figure 1 As shown, the vibration reduction device of the embodiment of the utility model comprises a first vibration reduction body 1 made of soft material and a second vibration reduction body 2 in the shape of a sphere. The first vibration reduction body 1 of the embodiment comprises an upper vibration reduction member 3, a lower vibration reduction member 4 and a supporting vibration reduction foot 5 connecting the upper vibration reduction member 3 and the lower vibration reduction member 4 to support each other. The upper vibration reduction member 3 and the lower vibration reduction member 4 are both made of soft colloid with a certain thickness, and the two supporting vibration reduction feet 5 made of soft material are respectively connected to the two sides of the upper vibration reduction member 3 and the lower vibration reduction member 4, forming a gap with a certain distance between the upper vibration reduction member 3 and the lower vibration reduction member 4. The second vibration reduction body 2 of the embodiment is limited to be located between the upper vibration reduction member 3 and the lower vibration reduction member 4 to serve as a support between the upper vibration reduction member 3 and the lower vibration reduction member 4. Since the first vibration reduction body 1 is made of soft colloid material, the support of the second vibration reduction body 2 to the upper vibration reduction member 3 and the lower vibration reduction member 4 is soft contact. In different embodiments, the second vibration damper 2 can be made of a hard material or a soft material. The hard material has a better supporting effect, while the soft material has a better soft contact effect. In this embodiment, the upper vibration damper 3, the lower vibration damper 4 and the supporting vibration damper foot 5 are integrally injection molded into the first vibration damper 1, so that the soft connection between the upper vibration damper 3, the lower vibration damper 4 and the supporting vibration damper foot 5 is tighter, and the gap formed to accommodate the second vibration damper 2 is more stable.

[0027] Since the second vibration damper 2 is a sphere, and the lower surface of the upper vibration damper 3 in the first vibration damper 1 and the upper surface of the lower vibration damper are planes, the initial contact between the second vibration damper 2 and the first vibration damper 1 is point-to-surface contact. Since the first vibration damper 1 is made of soft rubber material, the soft rubber material will elastically deform as the force increases after contacting an object, causing the contact surface to change and eventually develop into surface-to-surface contact. Therefore, the initial contact is point-to-surface contact, which can improve the buffering and vibration reduction effect of the force vibration, and the process of the contact surface change is also the process of buffering and vibration reduction.

[0028] like Figure 2-3 As shown, for the connection and assembly structure of the vibration damping device of Example 1 of the utility model (rotating connecting rod multi-stage vibration damping device), in order to ensure the overall assembly reliability of the first vibration damping body 1 and the second vibration damping body 2 and facilitate the specific application of the vibration damping device, a first connecting member 6 is locked on the top surface of the upper vibration damping member 3, and a second connecting member 7 is locked on the bottom surface of the lower vibration damping member 4. The first connecting member 6 in this embodiment is a plastic upper shell, and the second connecting member 7 is a plastic lower shell. The plastic upper shell and the plastic lower shell together surround the first vibration damping body 1, and the plastic upper shell and the plastic lower shell are fixed by clamping the first vibration damping body 1, and are non-contact fixed. The plastic upper shell includes a top shell and a rear side shell, and the plastic lower shell includes a bottom shell and a front side shell. The front side shell and the rear side shell together cover the gap. In order to limit the range of movement between the first connecting member 6 and the second connecting member 7, the first connecting member 6 and the second connecting member 7 are assembled by means of a locking member so that they can move relative to each other. The first connecting member 6 is provided with two diagonally arranged first positioning rods 8, which pass through the positioning holes of the upper vibration damping member 3 and are locked by screws. The second connecting member 7 is provided with two diagonally arranged second positioning rods 9, which pass through the positioning holes of the lower vibration damping member 4 and are locked by screws. The first positioning rods 8 are located on the inner side of the second positioning rods 9 and are in opposite diagonal directions, so that the first connecting member 6 and the second connecting member 7 can be more firmly assembled with the first vibration damping body 1, thereby ensuring the vibration reduction effect.

[0029] In order to apply the vibration reduction device of the utility model to products requiring lifting function, one of the first connecting member 6 or the second connecting member 7 is assembled on a lifting assembly. In this embodiment, the second connecting member 7 is assembled on the lifting assembly, and the lifting assembly includes a lifting bracket 10, a screw 11, a flange nut 12, and a lower fixed plate 13. The screw 11 is fixed on the lifting bracket 10, and the lifting bracket 10 is locked with the second connecting member 7 by screws. The flange nut 12 is locked on the lower fixed plate 13 by screws. The relative position of the screw 11 and the flange nut 12 is adjusted by driving the screw 11 to rotate, thereby realizing the rotation lifting function. The output shaft of the motor 14 is screwed on the top surface of the first connecting member 6, and the motor 14 is fixed on the upper fixed plate 15 by screws. When the output shaft of the motor 14 rotates, it drives the first connecting member 6 to rotate synchronously. The sides of the first connecting member 6 and the second connecting member 7 are parallel surfaces. When the first connecting member 6 rotates, the side squeezes the soft rubber, and the soft rubber twists and squeezes the side of the second connecting member 7 to transmit the force. The second connecting member 7 follows the rotation to achieve the purpose of rotation. Therefore, the vibration reduction device of this embodiment can not only reduce the vibration in a single direction, but also reduce the vibration generated during rotation, and its applicability is enhanced. The rotation of the output shaft of the motor 14 drives the lifting bracket 10 to rotate synchronously; the flange nut 12 is fixed to the lower fixed plate 13 and will not move, so that the motor 14 assembly moves up and down, and the motor 14 rotates forward and reverse to form a lifting action. The output shaft of the motor 14 is connected to the lifting bracket 10 with a vibration reduction device to achieve the vibration reduction effect of the connecting rod, forming a multi-stage vibration reduction device for a rotating connecting rod.

[0030] In order to ensure the position of the second vibration damper 2 and provide a constant buffer vibration damping effect, a limiter 16 for limiting the horizontal position of the second vibration damper 2 is provided between the upper vibration damper 3 and the lower vibration damper 4 in this embodiment. The first connecting member 6 in this embodiment has a limiter 16, which is four limiter columns integrally formed on the first connecting member 6, and the four limiter columns surround the spherical second vibration damper 2. Since the second vibration damper 2 is a sphere, the contact surfaces of the second vibration damper 2 and the four limiter columns are all point-to-surface contacts, ensuring that the vibration damping effect is reduced due to the displacement of the second vibration damper 2 during long-term repeated vibration damping, and ensuring that the vibration damping direction remains constant without deviation.

[0031] In order to better define the position of the first connecting member 6 and the upper vibration damping member 3, an annular groove 17 is provided on the upper vibration damping member 3, and the first connecting member 6 is correspondingly provided with an annular convex edge 18, and the position of the first connecting member 6 and the upper vibration damping member 3 is defined by the combination of the concave and convex, thereby ensuring the vibration damping effect. Similarly, the second connecting member 7 and the lower vibration damping member 4 also adopt the same structure as above, and the details are not repeated here.

[0032] like Figure 4-5As shown, the connecting rod multi-stage vibration reduction device of the vibration reduction device of Example 2 of the utility model is different from Example 1 in that the top surface of the first connecting member 6 is locked with an upper bracket 19, the bottom surface of the second connecting member 7 is locked with a lower bracket 20, and the lower bracket 20 is connected to a connecting rod 21. This Example 2 reduces the lifting function on the basis of Example 1.

[0033] The working principle of the embodiment of the utility model:

[0034] Multi-stage vibration reduction principle: when one end of the first connecting member 6 vibrates, the vibration is transmitted to the upper vibration reduction member 3 of the first vibration reduction body 1. Due to the buffering characteristics of the soft rubber, the first stage reduces the vibration; the upper vibration reduction member 3 transmits the vibration to the second vibration reduction body 2. Since the second vibration reduction body 2 is a single-point contact, only part of the vibration of the upper vibration reduction member 3 can be transmitted to the second vibration reduction body 2, and the second stage reduces the vibration; the vibration is transmitted to the lower vibration reduction member 4 through the upper vibration reduction member 3 and the supporting vibration reduction foot 5, and the vibration is transmitted to the lower vibration reduction member 4 through the second vibration reduction body 2, and the fourth stage reduces the vibration; the four levels of vibration are subtracted. After the four-level vibration subtraction, the amplitude and frequency of the vibration are correspondingly reduced, achieving the effect of vibration reduction. Based on the multi-stage vibration reduction principle, it can be well applied to a high-power output audio integrated machine such as a projector, and solves the vibration reduction problems of the integrated machine, whether it is single-end vibration transmission, two-end vibration transmission, rotational vibration transmission or high-frequency vibration. And thanks to the structure of the vibration reduction device, it has small swing and low noise.

[0035] Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A vibration reduction device, characterized in that: include: A first vibration damping body (1) comprises an upper vibration damping member (3), a lower vibration damping member (4), and a supporting vibration damping foot (5) for connecting the upper vibration damping member (3) and the lower vibration damping member (4) to support each other; as well as The second vibration damping body (2) is limitedly located between the upper vibration damping member (3) and the lower vibration damping member (4).

2. A vibration reduction device according to claim 1, characterized in that: The upper vibration damping member (3), the lower vibration damping member (4) and the supporting vibration damping foot (5) are integrally formed into the first vibration damping body (1).

3. A vibration reduction device according to claim 2, characterized in that: The first vibration damper (1) and / or the second vibration damper (2) are made of soft material.

4. A vibration reduction device according to claim 3, characterized in that: The initial contact between the second vibration damping body (2) and the first vibration damping body (1) is point-surface contact.

5. A vibration reduction device according to claim 1 or 4, characterized in that: The second vibration damping body (2) is a sphere.

6. A vibration reduction device according to claim 1, characterized in that: The top surface of the upper vibration damping member (3) is locked with a first connecting member (6), and the bottom surface of the lower vibration damping member (4) is locked with a second connecting member (7).

7. A vibration reduction device according to claim 6, characterized in that: The first connecting member (6) and the second connecting member (7) are assembled via a locking member so as to be relatively movable.

8. A vibration reduction device according to claim 6, characterized in that: The first connecting member (6) or the second connecting member (7) is assembled on a lifting component.

9. A vibration reduction device according to claim 6, characterized in that: A limiting member (16) for limiting the horizontal position of the second vibration damping body (2) is provided between the upper vibration damping member (3) and the lower vibration damping member (4).

Images