CN215068892U

CN215068892U - Sand table for investigation of default probability model based on Cox model

Info

Publication number: CN215068892U
Application number: CN202121355202.XU
Authority: CN
Inventors: 赵岚; 冯亚星
Original assignee: Nanchang Jiaotong University
Current assignee: Nanchang Jiaotong University
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-07
Anticipated expiration: 2031-06-18

Abstract

The utility model provides a sand table is used in breach probability model research based on Cox model, include: the device comprises a disk body, a sliding block and a marking weight; the bottom of the tray body is provided with four bases in a rectangular distribution mode, and the tray body and the bases are of an integrated structure; the sliding chute is positioned at the upper part of the tray body, and the sliding chute and the tray body are of an integrated structure; the sliding block is arranged inside the sliding groove and is in sliding connection with the sliding groove in a clearance fit mode; the magnetic stone is arranged at the bottom of the sliding block and connected with the sliding block in an embedding mode; the identification weight is located at the top end of the sliding block and is of an integrated structure with the sliding block. Through the improvement structurally, it is comparatively convenient to have research operation to the description is comparatively clear, and possesses and accomodate the function, improves its practical value and advantages such as practicality greatly, thereby the effectual problem and the not enough that appear in having solved current device.

Description

Sand table for investigation of default probability model based on Cox model

Technical Field

The utility model relates to a sand table technical field, more specifically say, especially relate to the sand table is used in breach probability model research based on Cox model.

Background

The Cox proportional hazards regression model, also known as the Cox model, is a semi-parametric regression model proposed by british statisticians. Is often applied to the study of default probability.

However, a special sand table is still lacked when carrying out the default probability model research based on the Cox model at present, which causes the problems that the default probability model research deduction is very inconvenient, the description cannot be clearly and detailedly carried out, and the inconvenience is caused.

In view of the above, the present invention provides a sand table for use in the study of default probability models based on Cox models, which is developed to solve the problems and improve the practical value.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sand table is used in breach probability model research based on Cox model to solve the problem and not enough that provide in the above-mentioned background art.

In order to achieve the above object, the utility model provides a sand table is used in breach probability model research based on Cox model is reached by following specific technological means:

a sand table for researching a default probability model based on a Cox model comprises the following steps: the tray comprises a tray body, a base, a drawer, a handle, a sliding chute, a sliding block, a magnetic stone and a marking weight; the bottom of the tray body is provided with four bases in a rectangular distribution mode, and the tray body and the bases are of an integrated structure; the drawer is arranged on the left side of the tray body, and the drawer and the tray body are in sliding connection in a clearance fit mode; the handle is arranged at the front end of the drawer and is connected with the drawer in a welding mode; the sliding chute is positioned at the upper part of the tray body, and the sliding chute and the tray body are of an integrated structure; the sliding block is arranged inside the sliding groove and is in sliding connection with the sliding groove in a clearance fit mode; the magnetic stone is arranged at the bottom of the sliding block and connected with the sliding block in an embedding mode; the identification weight is located at the top end of the sliding block and is of an integrated structure with the sliding block.

As further optimization of this technical scheme, the utility model discloses sand table is used in the study of the probability of default based on Cox model the disk body is the rectangle form, and the right side of disk body and lower part printing have the coordinate value.

As this technical scheme's further optimization, the utility model discloses sand table is used in the study of the probability of default model based on the Cox model the spout is overlooked and is regarded as rectangular form, looks sideways at for falling T shape, and the spout is the transverse arrangement mode and evenly is provided with many places on the upper portion of disk body.

As the further optimization of this technical scheme, the utility model discloses sand table is used in the research of the probability of default model based on Cox model the slider is the ladder columnar structure of T shape for looking sideways at, and the slider is provided with many places in the spout.

As the further optimization of this technical scheme, the utility model discloses a sand table is used in the research of the probability of default based on Cox model the magnetic stone is discoid.

As the further optimization of this technical scheme, the utility model discloses sand table is used in the research of the probability of default based on Cox model the sign weight is discoid.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model discloses sand table is used in breach probability model research based on Cox model carries out the deduction research through utilizing the sign weight according to the coordinate value on the disk body to it is very convenient when making it to breach probability model research operation, and the description is comparatively clear, then improves its practical value greatly.

2. The utility model discloses sand table is used in breach probability model research based on Cox model through set up the drawer in the plate body to utilize the drawer to deposit the collection to the sign weight, improve the device's practicality then greatly.

3. The utility model discloses sand table is used in breach of contract probability model research based on Cox model through set up magnetic stone bottom the slider to can fix a position the sign weight in the spout, avoid sliding at will to influence research operation demonstration, then improve the device's practicality greatly.

4. The utility model discloses a to above-mentioned device structurally improvement, it is comparatively convenient to have research operation to the description is comparatively clear, and possesses and accomodate the function, improves its practical value and advantages such as practicality greatly, thereby the effectual problem of appearing in having solved current device with not enough.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the drawer structure of the present invention;

fig. 3 is a schematic view of the structure of the magnetic stone of the present invention.

In the figure: disk body 1, base 2, drawer 3, handle 4, spout 5, slider 6, magnetic stone 7, sign weight 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1 to fig. 3, the present invention provides a specific technical implementation of a sand table for the default probability model research based on the Cox model:

a sand table for researching a default probability model based on a Cox model comprises the following steps: the tray comprises a tray body 1, a base 2, a drawer 3, a handle 4, a sliding groove 5, a sliding block 6, a magnetic stone 7 and a marking weight 8; the bottom of the tray body 1 is provided with four bases 2 in a rectangular distribution mode, and the tray body 1 and the bases 2 are of an integrated structure; the drawer 3 is arranged on the left side of the tray body 1, and the drawer 3 is in sliding connection with the tray body 1 in a clearance fit manner; the handle 4 is arranged at the front end of the drawer 3, and the handle 4 is connected with the drawer 3 in a welding mode; the sliding chute 5 is positioned at the upper part of the tray body 1, and the sliding chute 5 and the tray body 1 are of an integrated structure; the sliding block 6 is arranged inside the sliding groove 5, and the sliding block 6 is in sliding connection with the sliding groove 5 in a clearance fit mode; the magnetic stone 7 is arranged at the bottom of the sliding block 6, and the magnetic stone 7 is connected with the sliding block 6 in an embedding mode; sign weight 8 is located the top of slider 6, and sign weight 8 and slider 6 formula structure as an organic whole.

Specifically, the tray body 1 is rectangular, and coordinate values are printed on the right side and the lower portion of the tray body 1.

Specifically, the sliding grooves 5 are long in shape when viewed from the top and are inverted T-shaped when viewed from the side, the sliding grooves 5 are uniformly arranged at a plurality of positions on the upper portion of the tray body 1 in a transverse arrangement mode, and the sliding grooves 5 and the coordinate values of the right side of the tray body 1 are arranged in pairwise correspondence as shown by the combination body 1.

Specifically, the slide block 6 is a stepped columnar structure having a T-shape in side view, and the slide block 6 is provided with a plurality of positions in the chute 5.

Specifically, the magnetic stone 7 is disk-shaped.

Specifically, the identification weight 8 is disk-shaped.

The method comprises the following specific implementation steps:

when the device is used, the tray body 1 is firstly placed on a desktop by utilizing the base 2, then the drawer 3 is pulled open by the handle 4 to take out the identification weight 8, and the identification weight is put into the sliding groove 5 corresponding to the coordinate value by utilizing the sliding block 6 according to the research requirement to carry out identification deduction, so that the research description of the identification weight is more cleaned and convenient, and the practical value of the device is greatly improved.

In summary, the following steps: according to the sand table for the investigation of the default probability model based on the Cox model, deduction study is carried out by using the identification weights according to coordinate values on the table body, so that the sand table is very convenient to carry out investigation operation on the default probability model and is clear in description, and the practical value of the sand table is greatly improved; the drawer is arranged in the disc body, so that the marking weights can be stored and collected by the drawer, and the practicability of the device is greatly improved; through setting up the magnetic stone in the slider bottom to can fix a position the sign weight in the spout, avoid sliding at will and influence research operation demonstration, improve the device's practicality then greatly, thereby the effectual problem of appearing in having solved current device with not enough.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sand table for researching a default probability model based on a Cox model comprises the following steps: the tray comprises a tray body (1), a base (2), a drawer (3), a handle (4), a sliding chute (5), a sliding block (6), a magnetic stone (7) and a marking weight (8); the method is characterized in that: the bottom of the tray body (1) is provided with four bases (2) in a rectangular distribution mode, and the tray body (1) and the bases (2) are of an integrated structure; the drawer (3) is arranged on the left side of the tray body (1), and the drawer (3) is in sliding connection with the tray body (1) in a clearance fit mode; the handle (4) is arranged at the front end of the drawer (3), and the handle (4) is connected with the drawer (3) in a welding mode; the sliding chute (5) is positioned at the upper part of the tray body (1), and the sliding chute (5) and the tray body (1) are of an integrated structure; the sliding block (6) is arranged inside the sliding groove (5), and the sliding block (6) is in sliding connection with the sliding groove (5) in a clearance fit mode; the magnetic stone (7) is arranged at the bottom of the sliding block (6), and the magnetic stone (7) is connected with the sliding block (6) in an embedding mode; the identification weight (8) is located at the top end of the sliding block (6), and the identification weight (8) and the sliding block (6) are of an integrated structure.

2. The Cox model-based sand table for investigation of breach probability model according to claim 1, wherein: the tray body (1) is rectangular, and coordinate values are printed on the right side and the lower portion of the tray body (1).

3. The Cox model-based sand table for investigation of breach probability model according to claim 1, wherein: the sliding groove (5) is long-strip-shaped in overlook and is inverted T-shaped in sideward view, and the sliding groove (5) is arranged on the upper portion of the tray body (1) in a transverse arrangement mode and is evenly provided with a plurality of positions.

4. The Cox model-based sand table for investigation of breach probability model according to claim 1, wherein: the slide block (6) is of a T-shaped stepped columnar structure in side view, and a plurality of positions are arranged in the slide groove (5) of the slide block (6).

5. The Cox model-based sand table for investigation of breach probability model according to claim 1, wherein: the magnetic stone (7) is disc-shaped.

6. The Cox model-based sand table for investigation of breach probability model according to claim 1, wherein: the identification weight (8) is disc-shaped.