All-metal miniature vibration isolator

Abstract

The utility model relates to an all-metal miniature vibration isolator, which comprises a mounting screw, the lower end of the mounting screw is provided with a thread part, and the upper part of the mounting screw is provided with a radial convex ring, so that an upper outer shaft shoulder and a lower outer shaft shoulder are formed on the mounting screw; the outer shell part is connected to the exterior of the mounting screw in a sleeving mode, an upper inner shaft shoulder and a lower inner shaft shoulder are formed in the outer shell part, and the vibration isolation equipment is fixedly connected with the outer shell part through the equipment mounting structure; the upper elastic piece and the lower elastic piece are both of a cylindrical annular structure, the upper elastic piece is clamped between the upper outer shaft shoulder and the upper inner shaft shoulder, and the lower elastic piece is clamped between the lower outer shaft shoulder and the lower inner shaft shoulder. According to the all-metal miniature vibration isolator, the elastic piece is of a cylindrical annular structure, and the vibration isolator can bear high axial and radial vibration impact; the elastic piece is made of metal rubber, so that the elastic piece is not prone to aging and damage, and the service life of the vibration isolator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration isolation and buffering devices for electronic equipment, in particular to an all-metal miniature vibration isolator. Background Art

[0002] Many small devices and functional modules are secured to their mounting bases with a number of screws. When vibration isolation and buffering protection are required, space limitations often force the use of micro-isolators, which provide vibration isolation and buffering. Currently, most micro-isolators use rubber, which can be susceptible to damage and aging in harsh vibration, shock, and climate environments.

[0003] Specifically, if Figure 1 As shown, the vibration isolation device 11 is installed on the base 10 using the existing vibration isolator 8, as shown in FIG. Figure 2 As shown, the vibration isolator 8 includes a T-shaped sleeve 81, a pair of T-shaped vibration-damping pads 82, a gasket 83 and a screw 84. The two T-shaped vibration-damping pads 82 are sleeved on the sleeve 81, and the screw 84 passes through the gasket 83 and the T-shaped sleeve 81 and is connected to the base 10. The vibration-damping pad 82 used in the previous vibration isolator 8 is made of rubber, and the vibration-damping pad must adopt a T-shaped structure in the principle structure of the vibration isolator 8, so that the equipment base plate of the vibration isolation equipment can be clamped between the two T-shaped vibration-damping pads. The disadvantage of the T-shaped vibration-damping pad is that the axial and radial buffering materials are reduced, and the vibration-damping pad cannot withstand long-term vibration impact. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an all-metal miniature vibration isolator to solve the technical problems of poor vibration impact resistance, easy damage and aging of the previous vibration isolators.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is an all-metal miniature vibration isolator, comprising

[0007] A mounting screw having a threaded portion at its lower end and a radially convex ring at its upper end, so as to form an upper outer shoulder and a lower outer shoulder on the mounting screw, wherein the mounting screw is fixedly connected to the base through the threaded portion;

[0008] The outer shell has an overall cylindrical structure and is sleeved on the outside of the mounting screw. An upper inner shoulder and a lower inner shoulder are formed in the outer shell. The outer shell is provided with a device mounting structure. The vibration isolation device is fixedly connected to the outer shell via the device mounting structure.

[0009] An upper elastic member and a lower elastic member, both of which are cylindrical ring structures, are respectively sleeved on the mounting screws and are respectively located on both sides of the radial convex ring, the upper elastic member is clamped between the upper outer shoulder and the upper inner shoulder, and the lower elastic member is clamped between the lower outer shoulder and the lower inner shoulder;

[0010] The outer shell and the mounting screws are provided with axial and radial movement spaces so that the outer shell can compress the elastic member axially and radially.

[0011] Furthermore, the housing includes

[0012] The shell is a cylindrical structure with an outer wall provided with an external thread. The lower end of the shell is a straight cylindrical structure. The upper end of the shell is provided with a first inner stop ring. An upper inner shoulder is formed between the first inner stop ring and the shell.

[0013] The base is a cylindrical structure with an internal thread provided therein. The upper end of the base is a straight cylindrical structure with a second inner retaining ring provided at the lower end. A lower inner shoulder is formed between the second inner retaining ring and the base. The base is connected to the lower end of the housing.

[0014] A locking nut is arranged at the upper end of the shell, and the device bottom plate of the vibration isolation device is placed between the base and the locking nut. The locking nut axially locks the vibration isolation device.

[0015] Furthermore, an upper baffle is provided at the upper end of the upper elastic member, the upper baffle is sleeved on the mounting screw, the upper baffle abuts against the axial surface of the upper inner shoulder, and a radial movement gap is retained between the upper baffle and the radial surface of the upper inner shoulder;

[0016] A lower baffle is provided at the lower end of the lower elastic member, and the lower baffle is sleeved on the mounting screw. The lower baffle abuts against the axial surface of the lower inner shoulder and retains a radial movement gap with the radial surface of the lower inner shoulder.

[0017] Furthermore, the upper elastic member and the lower elastic member are both made of metal rubber.

[0018] Furthermore, the mounting screw includes a polished rod section and a threaded section, the threaded section is located at the lower end, and the radial convex ring and the polished rod section are an integral structure.

[0019] Furthermore, a mounting hole is provided on the equipment bottom plate of the vibration isolation device, and the shell passes through the mounting hole.

[0020] The beneficial effects of the utility model are:

[0021] The utility model discloses an all-metal miniature vibration isolator, in which the elastic part adopts a cylindrical ring structure and has sufficient elastic material in the axial and radial directions, so that the vibration isolator can withstand strong axial and radial vibration impacts; the elastic part adopts metal rubber, which makes it not easy to age and be damaged, thereby extending the service life of the vibration isolator.

[0022] The mounting structure between the equipment base plate and the outer shell can stably connect the equipment base plate to the outer shell, prevent the equipment base plate from radial and axial loosening, and improve the stability of the mounting structure of the vibration isolation equipment itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of a vibration isolation device mounted on a substrate using a traditional vibration isolator;

[0025] Figure 2 yes Figure 1 Middle partial view;

[0026] Figure 3 This is a schematic diagram of the utility model's all-metal miniature vibration isolator;

[0027] in,

[0028] 10. Base, 11. Vibration isolation equipment, 11-1. Equipment base plate,

[0029] 2. Mounting screws, 21. Radial convex ring;

[0030] 31. upper elastic member, 32. lower elastic member;

[0031] 4. Housing, 41. First inner retaining ring, 5. Base, 51. Second inner retaining ring, 6. Locking nut;

[0032] 71. Upper baffle, 72. Lower baffle. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] The present application provides an all-metal miniature vibration isolator, which is described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a particular embodiment, please refer to the relevant description of other embodiments.

[0035] To address the technical issues of poor vibration and impact resistance, susceptibility to damage and aging of conventional vibration isolators, an embodiment of the present application provides an all-metal miniature vibration isolator, which is described in detail below.

[0036] like Figure 3 As shown, an all-metal micro vibration isolator includes

[0037] The mounting screw 2 has a threaded portion at its lower end and a radial convex ring 21 at its upper end, so that an upper outer shoulder and a lower outer shoulder are formed on the mounting screw 2. The mounting screw 2 is fixedly connected to the mounting base 10 via the threaded portion.

[0038] The outer shell has a cylindrical structure as a whole and is sleeved on the outside of the mounting screw 2. An upper inner shoulder and a lower inner shoulder are formed in the outer shell. The outer shell is provided with a device mounting structure. The vibration isolation device 11 is fixedly connected to the outer shell via the device mounting structure.

[0039] The upper elastic member 31 and the lower elastic member 32 are both cylindrical ring structures. The two elastic members are respectively sleeved on the mounting screw 2 and are respectively located on both sides of the radial convex ring 21. The upper elastic member 31 is clamped between the upper outer shoulder and the upper inner shoulder, and the lower elastic member 32 is clamped between the lower outer shoulder and the lower inner shoulder.

[0040] The outer shell and the mounting screw 2 are provided with axial and radial movement spaces so that the outer shell can compress the elastic member axially and radially.

[0041] Specifically, as an optional implementation in this embodiment, Figure 3 As shown, the housing includes

[0042] The housing 4 is a cylindrical structure with an outer thread on its outer wall. The lower end of the housing 4 is a straight cylindrical structure. The upper end of the housing 4 is provided with a first inner retaining ring 41. An upper inner shoulder is formed between the first inner retaining ring 41 and the housing 4.

[0043] The base 5 is a cylindrical structure with an internal thread. The upper end of the base 5 is a straight cylindrical structure, and the lower end of the base 5 is provided with a second inner retaining ring 51. A lower inner shoulder is formed between the second inner retaining ring 51 and the base 5. The base 5 is connected to the lower end of the housing 4.

[0044] The locking nut 6 is provided at the upper end of the housing 4 and is suitable for axially locking the equipment base plate 11 - 1 .

[0045] Specifically, the device mounting structure consists of a housing 4, a base 5, and a locking nut 6. The device base plate 11-1 of the vibration isolation device 11 is placed between the base 5 and the locking nut 6. The locking nut 6 axially locks the vibration isolation device 11, while the housing 4 limits the horizontal position of the device base plate 11-1.

[0046] The device base plate 11-1 and the housing 4 can be in either abutting or sleeved relationship. The so-called abutting relationship means that the outer wall of the device base plate 11-1 directly abuts the outer wall of the housing 4, and the housing 4 restricts the device base plate 11-1 from moving in one direction. The so-called sleeved relationship means that the device base plate 11-1 has a mounting hole, through which the housing 4 passes, and the movement of the device base plate 11-1 within the mounting hole is directly restricted by the housing 4. A few inches of clearance is maintained between the inner diameter of the mounting hole and the outer diameter of the housing 4 to prevent lateral movement between the device base plate 11-1 and the housing 4, improving lateral synchronization between the two.

[0047] Working principle of the housing: The upper elastic member 31 and the lower elastic member 32 are both located in the cavity of the housing 4. The upper elastic member 31 is sleeved on the radial protruding ring 21, and the lower elastic member 32 is located below the radial protruding ring 21. The housing 4 is placed above the upper elastic member 31 through the first inner retaining ring 41, and the base 5 is in contact with the lower side of the lower elastic member 32 through the second inner retaining ring 51.

[0048] The base 5 moves axially relative to the housing 4 . When the base 5 is installed on the housing 4 , the axial tightness of the two elastic members in the housing 4 can be adjusted.

[0049] A radial movement gap is reserved between the inner wall of the shell 4 and the radial protruding ring 21 , and radial movement gaps are reserved between the first inner stop ring 41 , the second inner stop ring 51 and the mounting screw 2 , thereby ensuring that the outer shell can move laterally relative to the mounting screw 2 .

[0050] When the device bottom plate 11 - 1 impacts downward, the first inner retaining ring 41 squeezes the upper elastic member 31 , and when the device bottom plate 11 - 1 impacts upward, the second inner retaining ring 51 squeezes the lower elastic member 32 .

[0051] The outer walls of the upper elastic member 31 and the lower elastic member 32 are in contact with each other, ensuring that when the outer shell is subjected to radial force, the force on the shell 4 can directly act on the two elastic members.

[0052] Specifically, as an optional implementation in this embodiment, Figure 3As shown, an upper baffle 71 is provided at the upper end of the upper elastic member 31 , and the upper baffle 71 is sleeved on the mounting screw 2 . The upper baffle 71 abuts against the axial surface of the upper inner shoulder and retains a radial movement gap with the radial surface of the upper inner shoulder.

[0053] A lower baffle 72 is provided at the lower end of the lower elastic member 32 , and the lower baffle 72 is sleeved on the mounting screw 2 . The lower baffle 72 abuts against the axial surface of the lower inner shoulder and retains a radial movement gap with the radial surface of the lower inner shoulder.

[0054] Specifically, as an optional implementation in this embodiment, both the upper elastic member 31 and the lower elastic member 32 are made of metal rubber. Metal rubber is a mature product that is readily available on the market. Metal rubber is a homogeneous elastic porous material formed by cold stamping metal wires arranged in an orderly manner in a mold. It exhibits excellent wear resistance, strong electrical conductivity, and strong impact resistance.

[0055] The elastic member is metal rubber, and the housing 4, base 5, locking nut 6 and mounting screw 2 are also metal members, so that the entire vibration isolator is made of metal, so that this all-metal vibration isolator can adapt to various harsh environments.

[0056] Specifically, as an optional implementation in this embodiment, the mounting screw 2 includes a polished rod section and a threaded section, the threaded section is located at the lower end, and the radial convex ring 21 and the polished rod section are an integral structure.

[0057] A corresponding threaded hole is provided on the base 10 . The threaded portion of the mounting screw 2 is a section of external thread, which is connected to the threaded hole of the base, so that the mounting screw 2 is vertically fixed on the base 10 .

[0058] Installation method of the utility model all-metal micro vibration isolator:

[0059] First, install the screw 2 on one side to assemble the upper elastic member 31, the upper baffle 71 and the shell 4, and then install the screw 2 on the other side to assemble the lower elastic member 32, the lower baffle 72 and the base 5. The base 5 is threadedly connected to the shell 4, so that the upper elastic member 31, the lower elastic member 32 and a pair of baffles are installed in the chamber of the shell 4. At this time, the preliminary assembly is completed, and then the screw 2 is installed to fix the connection with the base 10. There is an axial movement space between the bottom of the base 5 and the base 10. Then start to install the vibration isolation device 11, and put the device base plate 11-1 of the vibration isolation device 11 into the shell 4 and place it on the base 5. Finally, tighten the locking nut 6 and clamp it on the base 5 through the device base plate 11-1.

[0060] During operation, when the vibration isolation device 11 is subjected to vertical vibration impact, the first inner retaining ring 41 and the second inner retaining ring 51 axially compress the upper elastic part 31 or the lower elastic part 32 to isolate and buffer the vibration. When the vibration isolation device 11 is subjected to lateral vibration impact, the shell 4 radially compresses the upper elastic part 31 or the lower elastic part 32 to isolate and buffer the vibration.

[0061] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0062] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0063] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. There may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interface, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0065] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0066] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0067] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. An all-metal miniature vibration isolator, Its characteristics include A mounting screw (2) is provided with a threaded portion at its lower end and a radial convex ring (21) at its upper portion, so that an upper outer shoulder and a lower outer shoulder are formed on the mounting screw (2), and the mounting screw (2) is fixedly connected to the base (10) via the threaded portion; The outer shell has a cylindrical structure as a whole and is sleeved on the outside of the mounting screw (2). An upper inner shoulder and a lower inner shoulder are formed in the outer shell. An equipment mounting structure is provided on the outer shell. The vibration isolation device (11) is fixedly connected to the outer shell via the equipment mounting structure. An upper elastic member (31) and a lower elastic member (32), both of which are cylindrical ring structures, are respectively sleeved on the mounting screws (2) and are respectively located on both sides of the radial convex ring (21), the upper elastic member (31) is clamped between the upper outer shaft shoulder and the upper inner shaft shoulder, and the lower elastic member (32) is clamped between the lower outer shaft shoulder and the lower inner shaft shoulder; The outer shell and the mounting screw (2) are provided with axial and radial movement spaces so that the outer shell can compress the elastic part axially and radially.

2. The all-metal miniature vibration isolator according to claim 1, characterized in that: The housing comprises The shell (4) is a cylindrical structure, the outer wall of which is provided with an external thread, the lower end of the shell (4) is a straight cylindrical structure, the upper end of the shell (4) is provided with a first inner stop ring (41), and an upper inner shoulder is formed between the first inner stop ring (41) and the shell (4); A base (5), the base (5) is a cylindrical structure, an internal thread is provided in the base (5), the upper end of the base (5) is a straight cylindrical structure, the lower end of the base (5) is provided with a second inner retaining ring (51), a lower inner shoulder is formed between the second inner retaining ring (51) and the base (5), and the base (5) is connected to the lower end of the shell (4); A locking nut (6) is provided at the upper end of the housing (4); a device base plate (11-1) of the vibration isolation device (11) is placed between the base (5) and the locking nut (6); and the locking nut (6) axially locks the vibration isolation device (11).

3. The all-metal miniature vibration isolator according to claim 1 or 2, characterized in that: An upper baffle (71) is provided at the upper end of the upper elastic member (31), and the upper baffle (71) is sleeved on the mounting screw (2). The upper baffle (71) abuts against the axial surface of the upper inner shaft shoulder and retains a radial movement gap with the radial surface of the upper inner shaft shoulder. A lower baffle (72) is provided at the lower end of the lower elastic member (32), and the lower baffle (72) is sleeved on the mounting screw (2). The lower baffle (72) abuts against the axial surface of the lower inner shoulder and retains a radial movement gap with the radial surface of the lower inner shoulder.

4. The all-metal miniature vibration isolator according to claim 1, characterized in that: The upper elastic member (31) and the lower elastic member (32) are both made of metal rubber.

5. The all-metal miniature vibration isolator according to claim 1, characterized in that: The mounting screw (2) comprises a polished rod section and a threaded section, the threaded section is located at the lower end, and the radial convex ring (21) and the polished rod section are an integral structure.

6. The all-metal miniature vibration isolator according to claim 2, characterized in that: A mounting hole is provided on the equipment base plate (11-1) of the vibration isolation equipment (11), and the housing (4) passes through the mounting hole.

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