Automobile clay model, plug column and sample piece mounting structure

Abstract

The utility model discloses a plunger which comprises a plunger body, and the plunger body comprises a plunger head and a plunger tail. A head groove located in the plunger head is formed in the top face of the plunger body, at least three deformation joints are annularly and evenly distributed on the side wall of the head groove, the plunger head is divided into at least three deformation petals through the deformation joints, and first barbs are arranged on the deformation petals at intervals in the axial direction of the plunger body. A tooth socket hole which is located in the plunger tail and used for installing a tooth socket is formed in the bottom face of the plunger body. The utility model further provides a sample piece installation structure which comprises a plunger installation groove and the plunger installed in the plunger installation groove, and the plunger is the plunger above. A tooth sleeve is mounted in the tooth sleeve hole, a mounting through hole corresponding to the plunger mounting groove is formed in the sample piece, and the sample piece is fixedly connected with the plunger through a bolt which penetrates through the mounting through hole and is in threaded fit with the tooth sleeve. The utility model also provides an automobile clay model.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile design, in particular to an automobile clay model, a plug and a sample installation structure. Background Art

[0002] In the process of body design, the production of physical clay models is a necessary step. During the entire design stage, clay models of various proportions must be made. The role of the scale model is to make the selected renderings three-dimensional, to reflect and correct the parts that are not shown or not yet clear in the renderings, and to further clarify the concept of the vehicle model. The physical model can make the characteristics of the product more realistic and distinct. In the process of model making, analysis and research on design goals, structure, and productivity can be carried out at the same time.

[0003] Specifically, the drag coefficient is an important indicator of automobile design and needs to be verified by wind tunnel testing. When the clay model is undergoing a wind tunnel test, an underbody guard is installed on the floor of the clay model. For the same clay model, it is generally necessary to conduct multiple wind tunnel tests, and the underbody guard needs to be replaced for each wind tunnel test. Therefore, in the prior art, it is generally adopted to reserve as many installation points as possible on the floor of the clay model to meet the installation positioning of different underbody guards. Although as many installation points as possible have been arranged on the floor of the clay model, when designing the underbody guard, there is still a misalignment between the appropriate installation points of the underbody guard and the reserved installation points, which causes certain difficulties in the design and installation of the underbody guard. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a car clay model and a plug and sample installation structure, which can add installation points on the floor of the clay model as needed to meet the installation needs of different bottom guard plates.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model firstly proposes a plunger, comprising a plunger body, wherein the plunger body comprises a plunger head and a plunger tail;

[0007] A head groove located in the plunger head is provided on the top surface of the plunger body, and at least three deformation seams are evenly distributed in an annular manner on the side wall of the head groove, and the deformation seams divide the plunger head into at least three deformation petals, and the deformation petals are provided with first barbs at intervals along the axial direction of the plunger body;

[0008] A toothed sleeve hole for installing a toothed sleeve is provided on the bottom surface of the plunger body and is located in the tail of the plunger.

[0009] Furthermore, the deformation seam extends from the bottom of the head groove to the top surface of the plunger body.

[0010] Furthermore, the deformation seam is located in the generatrix direction of the plunger body.

[0011] Furthermore, a reinforcing rib is provided between the bottom of each of the deformation petals and the bottom of the head groove.

[0012] Furthermore, the plunger head includes a conical section at the front section and a cylindrical section at the rear section, the cylindrical section is of equal diameter and coaxial with the plunger tail, and the maximum distance between the first barb and the axis of the plunger body is greater than the outer diameter of the cylindrical section.

[0013] Furthermore, a second barb structure is evenly distributed in an annular manner on the outer peripheral wall of the plunger tail, the second barb structure includes a side wall groove, a second barb is provided on the top of the side wall groove, and the maximum distance between the second barb and the axis of the plunger body is greater than the outer diameter of the plunger tail.

[0014] Furthermore, the second barb structures are evenly distributed in at least two circles, and the second barb structures in two adjacent circles are staggered.

[0015] Furthermore, a limiting ring extending radially outward is provided at a position of the plunger tail close to the bottom surface of the plunger body.

[0016] The utility model also proposes a sample installation structure, including a plunger installation groove and a plunger installed in the plunger installation groove, wherein the plunger adopts the plunger as described above;

[0017] A brace is installed in the brace hole, and a mounting through hole is provided on the sample piece corresponding to the plunger mounting groove. The sample piece is fixedly connected to the plunger by a bolt that passes through the mounting through hole and cooperates with the brace thread.

[0018] The utility model also proposes a car clay model, comprising a clay body and an underbody guard plate, wherein a sample mounting structure as described above is provided between the clay body and the underbody guard plate, wherein the plunger mounting groove is provided on the floor of the clay body, and the plunger is installed in the plunger mounting groove; a mounting through hole is provided on the underbody guard plate corresponding to the plunger mounting groove, and the underbody guard plate is fixedly connected to the plunger by a bolt passing through the mounting through hole and cooperating with the thread of the socket.

[0019] The beneficial effects of the utility model are:

[0020] When the automobile clay model of the utility model is subjected to a wind tunnel test, if the mounting through-holes arranged on the bottom guard plate are misaligned with mounting points reserved on the floor of the automobile clay model or if corresponding mounting points are not arranged on the floor of the automobile clay model, a plunger mounting groove can be directly opened on the floor of the automobile clay model, the plunger can be installed in the plunger mounting groove and fixed with glue, and then the tooth sleeve can be installed in the tooth sleeve hole. In this way, the bottom guard plate can be conveniently installed and fixed by using bolts that pass through the mounting through-holes and cooperate with the tooth sleeve threads, and mounting points can be conveniently and quickly added to the floor of the automobile clay model to meet the installation design requirements of different bottom guard plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the plug of the utility model;

[0023] Figure 2 for Figure 1 AA section view;

[0024] Figure 3 is a three-dimensional diagram of the plunger of this embodiment;

[0025] Figure 4 This is a schematic diagram of the sample installation structure.

[0026] Description of reference numerals:

[0027] 10- plunger head; 10a- cone section; 10b- cylinder section; 11- head groove; 12- deformation seam; 13- deformation flap; 14- first barb; 15- reinforcing rib;

[0028] 20- plunger tail; 21- socket hole; 22- side wall groove; 23- second barb; 24- limiting ring;

[0029] 30- plunger; 31- plunger mounting groove; 32- socket; 33- sample; 34- mounting through hole; 35- bolt; 36- floor. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0031] like Figure 1-3 As shown, the plunger of this embodiment includes a plunger body, and the plunger body includes a plunger head 10 and a plunger tail 20.

[0032] The top surface of the plunger body of this embodiment is provided with a head groove 11 located in the plunger head 10, and at least three deformation seams 12 are evenly distributed on the side wall of the head groove 11. The deformation seams 12 divide the plunger head 10 into at least three deformation petals 13. The deformation petals 13 are provided with first barbs 14 at intervals along the axial direction of the plunger body. The first barbs 14 play a role in preventing the plunger body from detaching from the plunger mounting groove. Specifically, in this embodiment, the deformation seams 12 are set to 8, and correspondingly, the deformation petals 13 are set to 8, and the first barbs 14 extend radially outward and toward the tail direction of the plunger body. In this embodiment, the deformation seam 12 extends from the bottom of the head groove 11 to the top surface of the plunger body, and the deformation seam 12 is located in the generatrix direction of the plunger body, so that the deformation petals 13 can be bent and deformed in the radially inward direction. In order to increase the structural strength of the deformation petals 13, in this embodiment, a reinforcing rib 15 is provided between the bottom of each deformation petal 13 and the bottom of the head groove 11. Specifically, the plunger head 10 of this embodiment includes a conical section 10a located at the front section and a cylindrical section 10b located at the rear section. The cylindrical section 10b is of equal diameter and coaxial with the plunger tail 20, and the maximum distance between the first barb 14 and the axis of the plunger body is greater than the outer diameter of the cylindrical section 10b.

[0033] The bottom surface of the plunger body of this embodiment is provided with a tooth sleeve hole 21 located in the plunger tail 20 for installing a tooth sleeve. Specifically, the outer peripheral wall of the plunger tail 20 is provided with a second barb structure evenly distributed in an annular manner, and the second barb structure includes a side wall groove 22, and the top of the side wall groove 22 is provided with a second barb 23, and the maximum distance between the second barb 23 and the axis of the plunger body is greater than the outer diameter of the plunger tail 20. The second barb 23 can further improve the stability of preventing the plunger from detaching from the plunger mounting groove. In the preferred implementation of this embodiment, the second barb structure is evenly distributed in an annular manner in at least two circles, and the adjacent two circles of the second barb structure are staggered to further improve the stability. In the preferred implementation of this embodiment, the plunger tail 20 is provided with a radially outwardly extending limit ring 24 at a position close to the bottom surface of the plunger body, and the limit ring 24 cooperates with the notch of the plunger mounting groove to limit the installation position of the plunger in the plunger mounting groove.

[0034] like Figure 4 As shown, this embodiment also proposes a sample installation structure, including a plunger installation groove 31 and a plunger 30 installed in the plunger installation groove 31. Specifically, the plunger adopts the plunger as described above in this embodiment. Specifically, a toothed sleeve 32 is installed in the toothed sleeve hole 21, and a mounting through hole 34 is provided on the sample 33 corresponding to the plunger installation groove 31. The sample 33 is fixedly connected to the plunger by a bolt 35 that passes through the mounting through hole 34 and is threadedly matched with the toothed sleeve 32.

[0035] This embodiment also proposes a car clay model, including a clay body and a bottom guard plate, a sample installation structure as described above in this embodiment is provided between the clay body and the bottom guard plate, a plunger installation groove 31 is provided on the floor 36 of the clay body, and the plunger is installed in the plunger installation groove 31; a mounting through hole 34 is provided on the bottom guard plate corresponding to the plunger installation groove 31, and the bottom guard plate is fixedly connected to the plunger by a bolt 35 that passes through the mounting through hole 34 and is threadedly matched with a tooth sleeve 32. That is, in this embodiment, the bottom guard plate corresponds to the sample 33 in the sample installation structure.

[0036] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A plug, characterized in that: A plunger body is included, wherein the plunger body includes a plunger head and a plunger tail; A head groove located in the plunger head is provided on the top surface of the plunger body, and at least three deformation seams are evenly distributed in an annular manner on the side wall of the head groove, and the deformation seams divide the plunger head into at least three deformation petals, and the deformation petals are provided with first barbs at intervals along the axial direction of the plunger body; A toothed sleeve hole for installing a toothed sleeve is provided on the bottom surface of the plunger body and is located in the tail of the plunger.

2. The plug according to claim 1, characterized in that: The deformation seam extends from the groove bottom of the head groove to the top surface of the plunger body.

3. The plug according to claim 2, characterized in that: The deformation seam is located in the generatrix direction of the plunger body.

4. The plug according to claim 2, characterized in that: A reinforcing rib is provided between the bottom of each of the deformation petals and the bottom of the head groove.

5. The plug according to claim 1, characterized in that: The plunger head includes a conical section at the front section and a cylindrical section at the rear section, the cylindrical section is of equal diameter and coaxial with the plunger tail, and the maximum distance between the first barb and the axis of the plunger body is greater than the outer diameter of the cylindrical section.

6. The plug according to claim 1, characterized in that: A second barb structure is evenly distributed in an annular manner on the outer peripheral wall of the plunger tail, and the second barb structure includes a side wall groove, and a second barb is provided on the top of the side wall groove, and the maximum distance between the second barb and the axis of the plunger body is greater than the outer diameter of the plunger tail.

7. The plug according to claim 6, characterized in that: The second barb structures are evenly distributed in at least two circles, and the second barb structures in two adjacent circles are staggered.

8. The plug according to claim 1, characterized in that: A limiting ring extending radially outward is provided at a position of the plunger tail close to the bottom surface of the plunger body.

9. A sample installation structure, characterized in that: It comprises a plunger mounting groove and a plunger mounted in the plunger mounting groove, wherein the plunger is a plunger as claimed in any one of claims 1 to 8; A brace is installed in the brace hole, and a mounting through hole is provided on the sample piece corresponding to the plunger mounting groove. The sample piece is fixedly connected to the plunger by a bolt that passes through the mounting through hole and cooperates with the brace thread.

10. A car clay model, characterized in that: It includes a mud body and an underbody guard plate, a sample installation structure as claimed in claim 9 is provided between the mud body and the underbody guard plate, the plunger installation groove is provided on the floor of the mud body, and the plunger is installed in the plunger installation groove; an installation through hole is provided on the underbody guard plate corresponding to the plunger installation groove, and the underbody guard plate is fixedly connected to the plunger by a bolt passing through the installation through hole and cooperating with the socket thread.

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