CN212570403U

CN212570403U - Damping and buffering structure for vehicle-mounted NVR (network video recorder) hard disk

Info

Publication number: CN212570403U
Application number: CN202021401551.6U
Authority: CN
Inventors: 蒋尊严; 姜志荣
Original assignee: Annax Suzhou Rail Systems Co ltd
Current assignee: Annax Suzhou Rail Systems Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-02-19
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to a be used for on-vehicle NVR hard disk shock attenuation buffer structure, including hard disk and collet the both sides of hard disk rigid coupling respectively have first hard disk support and second hard disk support, first hard disk support and second hard disk support are fixed on the collet through a plurality of buffer for be formed with contactless buffering clearance between hard disk and the collet. The utility model discloses an on-vehicle NVR hard disk provides the buffering, avoids hard disk damage, data loss's problem, has solved traditional rubber buffer low temperature down the material sclerosis, the problem of buffering inefficacy to simple structure, the processing customization is convenient, and the reliability is high, and the assembly is light, assembly error is little.

Description

Damping and buffering structure for vehicle-mounted NVR (network video recorder) hard disk

Technical Field

The utility model relates to an audio-visual technical field of on-vehicle video of track traffic, concretely relates to be used for on-vehicle NVR hard disk shock attenuation buffer structure.

Background

A rail transit vehicle-mounted NVR (Network Video Recorder) hard disk is used for monitoring storage of Video data, the hard disk is used for storing data by means of rotation of a magnetic head on a magnetic disk, the distance between the magnetic head and the hard disk is only a few micrometers or even less than 1 micrometer, vibration impact generated when a rail transit vehicle runs acts on the hard disk, and if sufficient buffering is not available, the magnetic head can possibly collide with the magnetic disk to scratch the magnetic disk, so that a bad track is generated, and data loss is caused

But at present, the design of vibration impact buffering is lacked in the design of the mounting structure of the vehicle-mounted NVR hard disk of the rail transit, or a rubber pad is simply used for buffering.

If the rubber pad is used as the hard disk buffer, the rubber material is greatly influenced by the temperature, the elasticity is weakened when the temperature is reduced, and the buffer performance is reduced; the rail transit vehicle has higher requirements on the environment-friendly performance and the flame retardant performance of nonmetal; the rubber pad is used as a hard disk buffer material, has less consumption and is not suitable for being specially customized according to the rail transit standard.

The utility model provides a be used for on-vehicle NVR hard disk shock attenuation buffer structure, the vibration that produces when reducing the vehicle operation strikes the influence to the NVR hard disk, improves the reliability of hard disk storage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that prior art exists, provide a be used for on-vehicle NVR hard disk shock attenuation buffer structure.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the utility model provides a be used for on-vehicle NVR hard disk shock attenuation buffer structure, includes hard disk and collet the both sides difference rigid coupling of hard disk has first hard disk support and second hard disk support, first hard disk support and second hard disk support are fixed on the collet through a plurality of buffer for be formed with contactless buffering clearance between hard disk and the collet.

Furthermore, the buffer comprises a buffer upper cover and a buffer lower cover, the buffer upper cover and the buffer lower cover are connected with each other at the sides to form a hollow buffer shell, a pair of floating nut columns are embedded into the buffer shell, and a compression spring is connected between the two floating nut columns and used for providing buffering elastic force.

Furthermore, through holes matched with the floating nut columns in shape are formed in the cover bottoms of the upper buffer cover and the lower buffer cover, a first floating nut column slidably extends out of a part of the upper end of the upper buffer cover through the through holes, a second floating nut column slidably extends out of a part of the lower end of the lower buffer cover through the through holes, internal thread holes are formed in the floating nut columns, the first floating nut column is connected to the first hard disk support or the second hard disk support through the internal thread holes and corresponding buffer fasteners, and the second floating nut column is connected to the bottom support through the internal thread holes and corresponding buffer fasteners.

Furthermore, a section of bulge is arranged on the cylindrical surface of the floating nut column to form a column shoulder, the diameter of the column shoulder is at least larger than the narrowest part of the through hole on the upper buffer cover and the lower buffer cover to prevent the floating nut column from sliding out of the upper buffer cover or the lower buffer cover, one end of the compression spring is abutted against the column shoulder of one floating nut column, and the other end of the compression spring is abutted against the column shoulder of the other floating nut column to limit the compression spring.

Further, the cross section of the floating nut column is a non-circular surface with a milled edge, so that relative rotation between the floating nut column and the upper buffer cover or the lower buffer cover is prevented.

Furthermore, first hard disk support and second hard disk support all are L shape sheet metal component, one of them L edge of first hard disk support and second hard disk support is equipped with a plurality of through-hole, and first hard disk support and second hard disk support pass through-hole and corresponding hard disk support fastener and are connected fixedly with the mounting hole of hard disk both sides respectively, another L edge of first hard disk support and second hard disk support is equipped with a plurality of slotted hole, and first hard disk support and second hard disk support are connected with the buffer through slotted hole and corresponding buffer fastener.

The utility model has the advantages that:

the utility model discloses an on-vehicle NVR hard disk provides the buffering, avoids hard disk damage, data loss's problem, has solved traditional rubber buffer low temperature down the material sclerosis, the problem of buffering inefficacy to simple structure, the processing customization is convenient, and the reliability is high, and the assembly is light, assembly error is little.

Drawings

Fig. 1 is a schematic view of the overall assembly structure of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

FIG. 3 is a cross-sectional view of a damper according to the present invention;

fig. 4 is a top view of the damper of the present invention.

The reference numbers in the figures illustrate: 1. hard disk, 2, buffer fastener, 3, first hard disk support, 4, buffer, 41, buffer upper cover, 42, buffer lower cover, 43, floating nut column, 44, compression spring, 5, bottom support, 6, second hard disk support, 7, hard disk support fastener.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, a damping and buffering structure for vehicle-mounted NVR hard disk comprises a hard disk 1 and a bottom support 5, wherein a first hard disk support 3 and a second hard disk support 6 are fixedly connected to two sides of the hard disk 1 respectively, the first hard disk support 3 and the second hard disk support 6 are fixed on the bottom support 5 through a plurality of buffers 4, in the embodiment, four buffers 4 are uniformly distributed, so that a non-contact buffering gap is formed between the hard disk 1 and the bottom support 5, and even if the buffers 4 move to a limit position, the hard disk 1 cannot contact with the bottom support 5.

As shown in fig. 3, the buffer 4 includes a buffer upper cover 41 and a buffer lower cover 42, the buffer upper cover 41 and the buffer lower cover 42 are connected to each other at their lateral sides to form a hollow buffer housing, in this embodiment, an external thread is provided at the outer lateral side of the buffer upper cover 41, an internal thread is provided at the inner lateral side of the buffer lower cover 42, the external thread of the buffer upper cover 41 is screwed with the internal thread of the buffer lower cover 42, a pair of floating nut columns 43 is embedded in the buffer housing, and a compression spring 44 is connected between the two floating nut columns 43 to provide buffering elastic force and damping function, so as to achieve the floating effect of the two floating nut columns 43, and the compression spring 44 may be made of manganese steel material, and has good elastic force recovery performance.

Through holes matched with the floating nut columns 43 in shape are formed in the cover bottoms of the upper buffer cover 41 and the lower buffer cover 42, wherein the first floating nut column 43 extends out of one part of the upper end of the upper buffer cover 41 in a sliding mode through the through holes, the second floating nut column 43 extends out of one part of the lower end of the lower buffer cover 42 in a sliding mode through the through holes, internal threaded holes are formed in the floating nut columns 43, the first floating nut column 43 is connected to the first hard disk support 3 or the second hard disk support 6 through the internal threaded holes and the corresponding buffer fasteners 2, and the second floating nut column 43 is connected to the bottom support 5 through the internal threaded holes and the corresponding buffer fasteners 2.

A section of bulge is arranged on the cylindrical surface of the floating nut column 43 to form a column shoulder, the diameter of the column shoulder is at least larger than the narrowest part of the through hole on the buffer upper cover 41 and the buffer lower cover 42 to prevent the floating nut column 43 from sliding out of the buffer upper cover 41 or the buffer lower cover 42, one end of the compression spring 44 abuts against the column shoulder of one floating nut column 43, and the other end of the compression spring 44 abuts against the column shoulder of the other floating nut column 43 to limit the compression spring 44.

As shown in fig. 4, the cross section of the floating nut column 43 is a non-circular surface with milled edges to prevent relative rotation between the floating nut column 43 and the upper bumper cover 41 or the lower bumper cover 42.

First hard disk support 3 and second hard disk support 6 all are L shape sheet metal component, one of them L edge of first hard disk support 3 and second hard disk support 6 is equipped with a plurality of through-hole, and first hard disk support 3 and second hard disk support 6 are connected fixedly with the mounting hole of hard disk 1 both sides respectively through-hole and corresponding hard disk support fastener 7, another L edge of first hard disk support 3 and second hard disk support 6 is equipped with a plurality of slotted hole, consumes some accumulative error, and first hard disk support 3 and second hard disk support 6 are connected with buffer 4 through slotted hole and corresponding buffer fastener 2.

The assembly sequence in this example is:

a. preassembly, assembling the related components of the buffer 4 (the buffer upper cover 41, the buffer lower cover 42, the floating nut column 43 and the compression spring 44);

b. respectively installing a first hard disk bracket 3 and a second hard disk bracket 6 on a hard disk 1;

c. four buffers 4 are arranged on the bottom support 5;

d. the hard disk support assembly (the first hard disk support 3, the second hard disk support 6 and the hard disk 1 which are already installed together) is installed on the buffer 4 of the bottom support 5.

In addition, it should be noted that the terms "first", "second", and the like in the specification are used for distinguishing various components, elements, steps, and the like in the specification, and are not used for representing a logical relationship or a sequential relationship between the various components, elements, steps, and the like, unless otherwise specified or indicated.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a be used for on-vehicle NVR hard disk shock attenuation buffer structure, includes hard disk (1) and collet (5), its characterized in that the both sides difference rigid coupling of hard disk (1) have first hard disk support (3) and second hard disk support (6), first hard disk support (3) and second hard disk support (6) are fixed on collet (5) through a plurality of buffer (4) for be formed with contactless buffering clearance between hard disk (1) and collet (5).

2. The shock-absorbing and buffering structure for the vehicular NVR hard disk according to claim 1, wherein the buffer (4) comprises a buffer upper cover (41) and a buffer lower cover (42), the buffer upper cover (41) and the buffer lower cover (42) are connected with each other at their sides to form a hollow buffer housing, a pair of floating nut columns (43) is embedded in the buffer housing, and a compression spring (44) is connected between the two floating nut columns (43) for providing a buffering elastic force.

3. The shock-absorbing buffering structure for the vehicular NVR hard disk according to claim 2, through holes matched with the floating nut columns (43) in shape are arranged on the cover bottoms of the buffer upper cover (41) and the buffer lower cover (42), wherein a first floating nut column (43) is slidingly protruded out of a portion of the upper end of the bumper upper cover (41) through the through hole, a second floating nut column (43) is slidingly protruded out of a portion of the lower end of the bumper lower cover (42) through the through hole, an internal threaded hole is provided in the floating nut column (43), the first floating nut column (43) is connected to the first hard disk support (3) or the second hard disk support (6) through the internal thread hole and the corresponding buffer fastener (2), and the second floating nut column (43) is connected to the bottom support (5) through the internal thread hole and the corresponding buffer fastener (2).

4. The shock-absorbing and buffering structure for the vehicle-mounted NVR hard disk is characterized in that a section of bulge is arranged on the cylindrical surface of each floating nut column (43) to form a column shoulder, the diameter of each column shoulder is at least larger than the narrowest part of the through holes in the upper buffer cover (41) and the lower buffer cover (42) to prevent the floating nut column (43) from sliding out of the upper buffer cover (41) or the lower buffer cover (42), one end of each compression spring (44) abuts against the column shoulder of one floating nut column (43), and the other end of each compression spring (44) abuts against the column shoulder of the other floating nut column (43) to limit the compression springs (44).

5. The shock-absorbing buffering structure for the vehicular NVR hard disk according to claim 4, wherein the cross-section of the floating nut post (43) is a non-circular surface with a milled edge to prevent relative rotation between the floating nut post (43) and the buffer upper cover (41) or the buffer lower cover (42).

6. The vehicle-mounted NVR (network video recorder) hard disk damping and buffering structure is characterized in that the first hard disk support (3) and the second hard disk support (6) are both L-shaped sheet metal parts, a plurality of through holes are formed in one L edge of the first hard disk support (3) and the second hard disk support (6), the first hard disk support (3) and the second hard disk support (6) are respectively connected and fixed with mounting holes in two sides of a hard disk (1) through the through holes and corresponding hard disk support fasteners (7), a plurality of long round holes are formed in the other L edge of the first hard disk support (3) and the second hard disk support (6), and the first hard disk support (3) and the second hard disk support (6) are connected with a buffer (4) through the long round holes and corresponding buffer fasteners (2).