CN210128006U - Screw and structural component and vehicle with same - Google Patents
Screw and structural component and vehicle with same Download PDFInfo
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- CN210128006U CN210128006U CN201920803118.6U CN201920803118U CN210128006U CN 210128006 U CN210128006 U CN 210128006U CN 201920803118 U CN201920803118 U CN 201920803118U CN 210128006 U CN210128006 U CN 210128006U
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Abstract
The utility model provides a screw and structure subassembly, vehicle that have it, the screw includes: a screw head, the upper end of which is formed with a groove, the screw head is formed into a frustum and the radial dimension of the upper end of the screw head is larger than that of the lower end of the screw head; the screw comprises a screw body, wherein the upper end of the screw body is connected with the lower end of the screw head, the radial dimension of the upper end of the screw body is smaller than that of the lower end of the screw head, and a thread extending from the lower end to the upper end is formed on the outer side of the screw body. According to the utility model discloses a problem of the metal sheet because thickness is thin and the narrow and small inconvenient connection in space has been solved to the screw, and the plate body is level and smooth through this screw connection rear surface, avoids the protruding surface of screw too much behind the screw connection, is convenient for arrange other structures, and convenient connection avoids the screw neck to bore the sheet material and arouses the risk of connection failure, and this screw simple structure, easily manufacturing, and the practicality is strong.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field, in particular to screw and structure component, vehicle that have it.
Background
Automobile body is formed by the panel beating concatenation, adopt technologies such as welding, spiro union, bonding to connect usually, wherein, in the car connection process, because of lightweight consideration, often meet the region that the sheet metal thickness is thin and the space is narrow and small, among the screw connection technology, the back surfacing is levelly and smoothly so that arrange other structures after requiring to connect, these regions all have higher requirement to the outward appearance after installation function and installation, ordinary screw is subject to self structure, the screw connection of being not convenient for, can not satisfy the installation demand.
There are also many different screws in the prior art, but also have some problems when current screw connection plate body, are difficult to satisfy the installation demand. As shown in fig. 1 and 2, fig. 1 is a schematic mounting diagram of a countersunk self-tapping screw, an upper plate body 2, a middle plate body 3 and a lower plate body 4 are connected through the countersunk self-tapping screw 1, the countersunk self-tapping screw in fig. 1 is not beneficial to connection of thin plates because the whole thickness of a conical surface is larger and a complete thread area is lower, and the conical surface has an excessive guiding effect, so that the neck of the screw is easy to drill into a plate material to cause connection failure; fig. 2 is the installation sketch map of pan head tapping screw, goes up plate body 6, middle plate body 7 and lower plate body 8 and passes through pan head tapping screw 5 and connect, and the pan head tapping screw in fig. 2 is owing to adopt the pan head structure, complete screw region can guarantee with lower plate body 8 fully meshing, can connect the sheet material that whole thickness is thinner, but the protruding surface of this pan head structure is too much, is unfavorable for arranging other structures, also does not benefit to the outward appearance pleasing to the eye and comfortable.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a screw.
The utility model also provides a structure subassembly that has above-mentioned screw.
The utility model also provides a vehicle of having above-mentioned screw.
In order to solve the technical problem, the utility model discloses a following technical scheme:
according to the utility model discloses screw of first aspect embodiment, include:
a screw head, the upper end of which is formed with a groove, the screw head is formed into a frustum and the radial dimension of the upper end of the screw head is larger than that of the lower end of the screw head;
the screw comprises a screw body, wherein the upper end of the screw body is connected with the lower end of the screw head, the radial dimension of the upper end of the screw body is smaller than that of the lower end of the screw head, and a thread extending from the lower end to the upper end is formed on the outer side of the screw body.
Further, the recess is formed as a cross-shaped recess or a straight recess.
Further, the axis of the screw head is collinear with the axis of the screw body.
Further, the upper end of the screw body is provided with a columnar connecting portion, the connecting portion is connected with the lower end of the screw head, the radial size of the connecting portion is smaller than that of the lower end of the screw head, the axis of the connecting portion is collinear with the axis of the screw body, an arc-shaped curved surface is formed in the circumferential direction of the outer side of the connecting portion, and the radial size of the connecting portion is gradually increased along the direction from bottom to top.
Further, the threads on the screw body extend to the connecting portion.
Further, the lower end of the screw body is formed in a tapered shape.
Further, a top plate is arranged on the screw head, and the groove is formed in the top plate.
Further, the top plate is formed in a columnar shape and the axis of the top plate is collinear with the axis of the screw head, and the radial dimension of the top plate is the same as the radial dimension of the upper end of the screw head.
According to the utility model discloses structural component of second aspect embodiment includes:
the screw of the above embodiment;
an upper plate body and a middle plate body; an upper screw hole is formed on the upper plate body, and a middle screw hole is formed on the middle plate body at a position corresponding to the upper screw hole;
the lower plate body is characterized in that an inverted cone which extends downwards is formed on the inner side of the upper screw hole, a through hole which penetrates through the inverted cone along the axial direction of the inverted cone is formed on the inverted cone, the radial size of the through hole is gradually reduced from top to bottom, and the lower end of the inverted cone extends into the middle screw hole to be abutted against the lower plate body; the outer side wall of the frustum of the screw abuts against the inner side wall of the through hole, and the screw body part of the screw is arranged on the lower plate body.
According to the utility model discloses vehicle of third aspect embodiment, including the screw of above-mentioned embodiment.
The above technical scheme of the utility model one of following beneficial effect has at least:
according to the utility model discloses a problem of the metal sheet because thickness is thin and the narrow and small inconvenient connection in space has been solved to the screw, and the plate body is level and smooth through this screw connection rear surface, avoids the protruding surface of screw too much behind the screw connection, is convenient for arrange other structures, and convenient connection avoids the screw neck to bore the sheet material and arouses the risk of connection failure, and this screw simple structure, easily manufacturing, and the practicality is strong.
Drawings
FIG. 1 is a schematic view of the installation of a countersunk self-tapping screw;
FIG. 2 is a schematic view of the installation of the pan head self-tapping screw;
fig. 3 is a schematic structural diagram of a screw according to an embodiment of the present invention;
fig. 4 is a schematic connection diagram of the structural assembly according to the embodiment of the present invention.
Reference numerals:
a screw head 10;
a screw body 20; a thread 21;
a connecting portion 30;
a top plate 40;
an upper plate body 50; an upper screw hole 51; an inverted frustum 52;
a middle plate body 60; a middle screw hole 61;
a lower plate body 70;
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
The following first describes a screw according to an embodiment of the present invention in detail with reference to the drawings.
As shown in fig. 3 to 4, a screw according to an embodiment of the present invention includes a screw head 10 and a screw body 20.
Specifically, a recess is formed at the upper end of the screw head 10, the screw head 10 is formed as a frustum, the radial dimension of the upper end of the screw head 10 is larger than the radial dimension of the lower end of the screw head 10, the upper end of the screw body 20 is connected to the lower end of the screw head 10, the radial dimension of the upper end of the screw body 20 is smaller than the radial dimension of the lower end of the screw head 10, and a thread 21 extending from the lower end to the upper end is formed on the outer side of the screw body 20.
That is, the screw is mainly composed of a screw head 10 and a screw body 20, wherein the upper end of the screw head 10 may be formed with a recess, the recess may be formed as a cross recess or a straight recess, which is convenient for installation of a general tool, the screw head 10 is formed as a frustum, the radial dimension of the upper end of the screw head 10 is greater than the radial dimension of the lower end of the screw head 10, the upper end of the screw body 20 is connected with the lower end of the screw head 10, and the radial dimension of the upper end of the screw body 20 is less than the radial dimension of the lower end of the screw head 10, thereby preventing the screw neck from drilling into the plate material to cause connection failure, the outer side of the screw body 20 is formed with a thread 21 extending from the lower end to the upper end, the end surface of the upper end of the screw body 20 is parallel to the. Compared with a common screw, the frustum of the screw head 10 is thinner, and naturally sags depending on the self gravity of the screw during thread processing, so that thread rolling (thread processing) is completed, an incomplete thread area formed by the screw is translated upwards, the range of the complete thread area is expanded, the upper boundary of the complete thread area moves upwards, the distance from the boundary to the upper end face of the screw head 10 is reduced, and a smaller and thinner plate can be fastened.
According to the utility model discloses a problem of metal sheet because thickness is thin and the narrow and small inconvenient connection in space has been solved to the screw, and the plate body is level and smooth through this screw connection rear surface, avoids the protruding surface of screw too much behind the screw connection, is convenient for arrange other structures, and convenient connection avoids the screw neck to bore into the sheet material and arouses the risk of connection failure.
Preferably, the axis of the screw head 10 and the axis of the screw body 20 may be collinear.
In some embodiments, the upper end of the screw body 20 may be provided with a columnar connection portion 30, the connection portion 30 may be connected to the lower end of the screw head 10, and the radial dimension of the connection portion 30 is smaller than the radial dimension of the lower end of the screw head 10, so as to avoid connection failure caused by the screw neck drilling into the sheet material, the axis of the connection portion 30 and the axis of the screw body 20 may be collinear, an arc-shaped curved surface is circumferentially formed on the outer side of the connection portion 30, the radial dimension of the connection portion 30 along the direction from bottom to top is gradually increased, and the arc-shaped transition may facilitate connection and.
In other embodiments, the threads 21 on the screw body 20 may extend to the connecting portion 30. The processing mode of the screw thread is consistent with the thread of a tapping screw for a common metal plate, and an incomplete thread area also exists, but compared with the common tapping screw, the position of the incomplete thread area of the screw is deviated, so that the distance between the complete thread area (an ideal area for thread engagement) and the end face of the screw head 10 is short, and the screw thread processing mode is suitable for connection and fixation of thinner plates.
Specifically, the lower end of the screw body 20 may be tapered to facilitate the entry of the screw body 20 into the sheet material.
Further, a top plate 40 is provided on the screw head 10, and a groove is provided on the top plate 40.
Alternatively, the top plate 40 may be formed in a cylindrical shape, and the axis of the top plate 40 and the axis of the screw head 10 may be collinear, and the radial dimension of the top plate 40 may be the same as the radial dimension of the upper end of the screw head 10, and the screw may be installed using a tool and groove fit.
According to the utility model discloses a problem of the metal sheet because thickness is thin and the narrow and small inconvenient connection in space has been solved to the screw, and the plate body is level and smooth through this screw connection rear surface, avoids the protruding surface of screw too much behind the screw connection, is convenient for arrange other structures, and convenient connection avoids the screw neck to bore the sheet material and arouses the risk of connection failure, and this screw simple structure, easily manufacturing, and the practicality is strong.
The structural component according to the embodiment of the present invention comprises the screw, the upper plate body 50, the middle plate body 60 and the lower plate body 70 of the above-mentioned embodiment, wherein the upper plate body 50 can be formed with an upper screw hole 51, the middle plate body 60 can be formed with a middle screw hole 61 at a position corresponding to the upper screw hole 51, the inner side of the upper screw hole 51 can be formed with a reverse frustum 52 extending downward, the reverse frustum 52 can be formed with a through hole penetrating along the axial direction of the reverse frustum 52, the radial dimension of the through hole is gradually reduced from top to bottom, the lower end of the reverse frustum 52 can extend into the middle screw hole 61 to stop against the lower plate body 70, the upper side surface of the lower plate body 70 can be stopped, the outer side wall of the frustum of the screw can stop against the inner side wall of the through hole, so that the frustum of the screw is tightly fitted with the through hole, the screw body part of the screw is arranged on the lower plate body 70, so as to connect the upper plate body 50, the outer surface of the screw protrusion is excessive after screw connection is avoided, other structures are convenient to arrange, and connection is convenient.
The embodiment of the utility model provides a still provide a vehicle.
According to the utility model discloses the vehicle includes the screw according to above-mentioned embodiment, because according to the utility model discloses the screw of above-mentioned embodiment has above-mentioned technological effect, consequently, according to the utility model discloses the vehicle also has corresponding technological effect, and the plate body is level and smooth through this screw connection rear surface promptly, and it is too much to avoid screw connection rear screw to break out the surface, is convenient for arrange other structures, and it is convenient to connect, avoids the screw neck to bore the sheet material and arouses the risk of connecting failure.
Other structures and operations of the vehicle according to the embodiments of the present invention will be understood and readily implemented by those skilled in the art, and thus will not be described in detail.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of the terms "a" or "an" and the like in the description and claims do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships are changed accordingly.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A screw, comprising:
a screw head, the upper end of which is formed with a groove, the screw head is formed into a frustum and the radial dimension of the upper end of the screw head is larger than that of the lower end of the screw head;
the screw comprises a screw body, wherein the upper end of the screw body is connected with the lower end of the screw head, the radial dimension of the upper end of the screw body is smaller than that of the lower end of the screw head, and a thread extending from the lower end to the upper end is formed on the outer side of the screw body.
2. The screw of claim 1, wherein the recess is formed as a cross slot or a straight slot.
3. The screw of claim 1, wherein the axis of the screw head is collinear with the axis of the screw body.
4. The screw according to claim 1, wherein the upper end of the screw body is provided with a cylindrical connecting portion, the connecting portion is connected with the lower end of the screw head, the radial dimension of the connecting portion is smaller than that of the lower end of the screw head, the axis of the connecting portion is collinear with the axis of the screw body, an arc-shaped curved surface is formed on the outer circumference of the connecting portion, and the radial dimension of the connecting portion gradually increases along the direction from bottom to top.
5. The screw set forth in claim 4, wherein the threads on the screw body extend to the connecting portion.
6. The screw of claim 1, wherein the lower end of the screw body is tapered.
7. The screw of claim 1, wherein a top plate is provided on the screw head and the recess is provided on the top plate.
8. The screw of claim 7 wherein the top plate is cylindrically shaped and has an axis that is collinear with the axis of the screw head, the top plate having a radial dimension that is the same as the radial dimension of the upper end of the screw head.
9. A structural assembly, comprising:
the screw of any one of claims 1-8;
an upper plate body and a middle plate body; an upper screw hole is formed on the upper plate body, and a middle screw hole is formed on the middle plate body at a position corresponding to the upper screw hole;
the lower plate body is characterized in that an inverted cone which extends downwards is formed on the inner side of the upper screw hole, a through hole which penetrates through the inverted cone along the axial direction of the inverted cone is formed on the inverted cone, the radial size of the through hole is gradually reduced from top to bottom, and the lower end of the inverted cone extends into the middle screw hole to be abutted against the lower plate body; the outer side wall of the frustum of the screw abuts against the inner side wall of the through hole, and the screw body part of the screw is arranged on the lower plate body.
10. A vehicle, characterized in that it comprises a screw according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803118.6U CN210128006U (en) | 2019-05-30 | 2019-05-30 | Screw and structural component and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803118.6U CN210128006U (en) | 2019-05-30 | 2019-05-30 | Screw and structural component and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210128006U true CN210128006U (en) | 2020-03-06 |
Family
ID=69662757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920803118.6U Active CN210128006U (en) | 2019-05-30 | 2019-05-30 | Screw and structural component and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210128006U (en) |
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2019
- 2019-05-30 CN CN201920803118.6U patent/CN210128006U/en active Active
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