CN217426368U

CN217426368U - Air-float disc

Info

Publication number: CN217426368U
Application number: CN202221296101.4U
Authority: CN
Inventors: 李瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-09-13
Anticipated expiration: 2032-05-27

Abstract

The utility model relates to the technical field of record players, in particular to an air-floating record player, which comprises a rotary disc and a supporting disc for supporting the rotary disc, wherein the rotary disc is formed with a top air cavity, the supporting disc is provided with an air-floating supporting rod matched with the top air cavity, and the air-floating supporting rod is formed with an air hole structure for air flow to pass through; supporting disk top is arranged in to the carousel, can be used to storage gas through the top air cavity, top and top air cavity normal running fit on the air supporting bracing piece, the air current passes through pore structure and gets into to the top air cavity, the headspace confession gas that air supporting bracing piece can descend passes through, because the relation of air current, make can form the clearance confession gas between carousel and the supporting disk and pass through, make the carousel suspend in the supporting disk top, the carousel rotates round the air supporting bracing piece, realize the suspension, the air supporting principle of this scheme has with low costs, there is not the advantage of magnetic field influence, it is applicable in most of CD players, and is suitable for mass production.

Description

Air-float disc

Technical Field

The utility model relates to a record technical field especially relates to an air supporting formula record.

Background

The turntable disc is an important part of a black rubber player, and the stable rotation of the turntable disc is very important to the sound quality of the player. The black rubber record player plays music signals by means of vibration of a stylus, and the vibration and friction generated when a turntable rotates can cause the tone quality of the record player to be reduced.

For solving above-mentioned problem, chinese utility model patent CN200720056183.4 discloses a record player gramophone, it is including lower bearing, last bearing and pivot, goes up bearing including carousel 1 and inlay the dress in wherein last bearing, and lower bearing includes the chassis and inlays the dress in wherein lower bearing, and the pivot alternates in the shaft hole of last bearing and lower bearing with go up the bearing and be connected with lower bearing, and a paired last magnetic ring is fixed in respectively with the lower magnetic ring in the mode of mutual exclusion bottom of bearing and the top of bearing down, its characterized in that: an oil-containing copper sleeve is embedded in the shaft hole of the upper bearing seat, the upper end of the rotating shaft is movably inserted in the oil-containing copper sleeve, and the rotating shaft is a ceramic rotating shaft. The utility model is characterized in that: the utility model discloses utilized the magnetic suspension principle to make the upper bearing portion suspend completely, the rotational friction of pivot and axle sleeve that can significantly reduce has shockproof effect.

Because above-mentioned scheme adopts the mode of magnetic levitation to realize the suspension, and under the effect of magnetic levitation, the gramophone needle is when doing the frictional contact motion with the gramophone dish, and the influence that the gramophone needle received the magnetic path easily leads to the track inaccurate, and tone quality receives the influence.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air-floating type gramophone record aiming at the defects of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an air-float gramophone record comprises a rotary disk and a supporting disk for supporting the rotary disk, wherein a top air cavity is formed on the rotary disk, an air-float supporting rod matched with the top air cavity is arranged on the supporting disk, and an air hole structure for air flow to pass through is formed on the air-float supporting rod.

Further: the supporting disk is formed with a bottom air cavity, and the air-floating supporting rod penetrates through the bottom air cavity to be matched with the top air cavity of the turntable.

Further: the top air cavity comprises a first upper air cavity and a second upper air cavity which are coaxially matched.

Further: a top guide disc is installed in the first upper air cavity, and a bottom guide disc which is coaxially matched with the top guide disc and is matched with the top guide disc in shape is installed at the top of the supporting disc.

Further: the second upper air cavity penetrates through the top guide disc and extends into the rotary disc for molding.

And further: the guide seat is installed to the bottom guiding disk, and the guide seat shaping has the activity hole that is used for installing the air supporting bracing piece.

Further: the top of the air floatation support rod extends to the second upper air cavity, and the rod body of the air floatation support rod is movably inserted into the movable hole.

And further: the second upper air cavity is of an inwards concave circular truncated cone structure, the shape of the top of the air floatation support rod is matched with that of the second upper air cavity, and the bottom air cavity is formed in a plurality of annular airflow grooves formed in the top of the guide seat and used for air flowing.

And further: the top air cavity is of a circular structure, the thickness of the bottom guide disc is larger than that of the top guide disc, and the depth of the first upper air cavity is larger than that of the top guide disc and smaller than the sum of the bottom guide disc and the top guide disc.

Further: the air hole structure is a hollow-structure suspension air hole which is axially arranged along the length direction of the air floatation support rod.

The utility model has the advantages that: can be used to the storage gas through the top air cavity, top and top air cavity normal running fit on the air supporting bracing piece, the air current passes through the pore structure and gets into to the top air cavity, the headspace confession gas that can drop of air supporting bracing piece passes through, because the relation of air current, make can form the clearance confession gas between carousel and the supporting disk and pass through, make the carousel suspend in the supporting disk top, the carousel rotates round the air supporting bracing piece, the realization suspends, the air supporting principle of this scheme has with low costs, there is not the advantage of magnetic field influence, it is applicable in most of record carriers, and is suitable for mass production.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of a cross section.

Fig. 3 is a partially enlarged sectional view of the structure.

The reference numerals include:

1-a turntable,

11-a first upper air cavity, 12-a top guide disc, 13-a second upper air cavity,

2-a support disk,

21-bottom guide plate, 22-air-float support rod, 23-guide seat, 24-movable hole, 25-suspended air hole,

26-annular air flow groove.

Detailed Description

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

As shown in fig. 1-3, an air-floating type turntable comprises a turntable 1 and a supporting disk 2 for supporting the turntable 1, wherein the turntable 1 is formed with a top air cavity, the supporting disk 2 is provided with an air-floating supporting rod 22 matched with the top air cavity, the air-floating supporting rod 22 is formed with an air hole structure for air flow to pass through, and the air hole structure is a hollow-structure suspended air hole 25 axially arranged along the length direction of the air-floating supporting rod 22 and used for blowing air into the top air cavity.

2 tops of supporting disk are arranged in to carousel 1, store gas through the top air cavity, top and top air cavity normal running fit on the air supporting bracing piece 22, the air current passes through pore structure and gets into to the top air cavity, air supporting bracing piece 22 can descend the headspace confession gas and pass through, because the relation of air current, make and to form the clearance confession gas between carousel 1 and the supporting disk 2 and pass through, make carousel 1 suspend in supporting disk 2 tops, carousel 1 rotates round air supporting bracing piece 22, the realization suspends, the air supporting principle of this scheme has with low costs, there is not the advantage of magnetic field influence, it is applicable in most of singing mascerating machines, and is suitable for mass production.

The top air chamber includes a first upper air chamber 11 and a second upper air chamber 13 which are disposed opposite to each other.

The first upper air cavity 11 is internally provided with a top guide disc 12 matched with the cross section of the air cavity in shape, the top of the support disc 2 is provided with a bottom guide disc 21 matched with the top guide disc 12 in coaxial and matched with the top, the second upper air cavity 13 upwards penetrates through the top guide disc 12 and extends into the turntable 1, the bottom guide disc 21 is provided with a guide seat 23 through a hole at the position of the circle center, and the guide seat 23 is provided with a movable hole 24 for installing an air floatation support rod 22 in a molding mode.

Under the condition of no air blowing buoyancy, the air supporting rod 22 is matched with the top guide disc 12 on the rotary disc 1 to support the top guide disc, so that the top of the air supporting rod 22 is attached to the bottom wall of the second upper air cavity 13, when the air holes 25 of the air supporting rod 22 are used for ventilation, the air flow can enter the second upper air cavity 13, the second upper air cavity 13 and the air supporting rod 22 can generate a gap, the air flow passes through the gap, the air flow can flow downwards to a position between the bottom guide disc 21 and the top guide disc 12 and generate a gap, and the gap is used for suspending the top guide disc 12 and the rotary disc 1 above the bottom guide disc 21 to realize separation.

Air cavity 13 extends on the second in air supporting rod 22 top, and the body of rod activity of air supporting rod 22 inserts in activity hole 24, and air cavity 13 is the round platform body structure of indent on the second, and air cavity 13 shape looks adaptation on the shape at air supporting rod 22 top and the second, and the shaping of supporting disk 2 has the bottom air cavity, and the bottom air cavity is a plurality of annular air current grooves 26 that are used for the gas flow for the shaping at guide holder 23 top. The top of the air-floating support rod 22 is a second circular truncated cone structure matched with the shape of the second upper air cavity 13, and during ventilation, air flow can flow downwards along the edge of the second upper air cavity 13 through the air-floating air holes 25 and uniformly enters the annular air flow groove 26 of the bottom guide plate 21, air in the annular air flow groove 26 is uniformly dispersed all around and enters between the top guide plate 12 and the bottom guide plate 21 to form a gap, and the top guide plate 12 is suspended above the bottom guide plate 21 at intervals in parallel.

Further, the top air cavity is circular structure, the thickness of bottom guiding disc 21 is greater than top guiding disc 12, the degree of depth of first air cavity 11 is greater than the thickness of top guiding disc 12 and is less than the thickness of bottom guiding disc 21 and the sum of top guiding disc 12 for top guiding disc 12 and bottom guiding disc 21 are all in the within range of first air cavity 11, bottom guiding disc 21 is in first air cavity 11 when carousel 1 rotates, can reduce the probability of supporting disk 2 and carousel 1 aversion and take place, improve pivoted stability.

In conclusion, the present invention has the above-mentioned excellent characteristics, so that it can be used to enhance the effectiveness of the prior art and has practicability, and thus it is a product with practical value.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. An air floating type record disc, including carousel and supporting disk used for supporting the carousel, its characterized in that: the turntable is formed with a top air cavity, the supporting disk is provided with an air floatation supporting rod, and the air floatation supporting rod is formed with an air hole structure for supplying air to the top air cavity so as to float the turntable by means of air force.

2. An air bearing record carrier as claimed in claim 1, wherein: the supporting disc is formed with a bottom air cavity, and the air floatation supporting rod penetrates through the bottom air cavity to be matched with the top air cavity of the turntable.

3. An air bearing record disc as claimed in claim 2, wherein: the top air cavity comprises a first upper air cavity and a second upper air cavity which are oppositely arranged.

4. An air bearing record disc as claimed in claim 3, wherein: a top guide disc is installed in the first upper air cavity, and a bottom guide disc which is coaxially matched with the top guide disc and is matched with the top guide disc in shape is installed at the top of the supporting disc.

5. An air bearing record disc as claimed in claim 4, wherein: and the second upper air cavity penetrates through the top guide disc and extends into the rotary disc for molding.

6. An air bearing record disc as claimed in claim 4, wherein: the bottom guide disc is provided with a guide seat, and the guide seat is provided with a movable hole for installing an air floatation support rod.

7. An air bearing record disc as claimed in claim 6, wherein: the top of the air floatation support rod extends to the second upper air cavity, and the rod body of the air floatation support rod is movably inserted into the movable hole.

8. An air bearing record carrier as claimed in claim 4, wherein: the second upper air cavity is of an inwards concave circular truncated cone structure, the shape of the top of the air floatation support rod is matched with that of the second upper air cavity, and the bottom air cavity is formed in a plurality of annular airflow grooves formed in the top of the guide seat and used for air flowing.

9. An air bearing record disc as claimed in claim 4, wherein: the top air cavity is of a circular structure, the thickness of the bottom guide disc is larger than that of the top guide disc, and the depth of the first upper air cavity is larger than that of the top guide disc and smaller than the sum of the bottom guide disc and the top guide disc.

10. An air bearing record disc as claimed in claim 9, wherein: the air hole structure is a hollow-structure suspension air hole axially arranged along the length direction of the air floatation support rod.