CN216975695U - Double-threaded screw and threaded connection assembly - Google Patents
Double-threaded screw and threaded connection assembly Download PDFInfo
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- CN216975695U CN216975695U CN202123385350.9U CN202123385350U CN216975695U CN 216975695 U CN216975695 U CN 216975695U CN 202123385350 U CN202123385350 U CN 202123385350U CN 216975695 U CN216975695 U CN 216975695U
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Abstract
The utility model relates to a double-threaded screw and a threaded connection assembly, wherein the double-threaded screw comprises a first threaded section, a polished rod section, a positioning section and a second threaded section, wherein the first threaded section is used for being in threaded connection with a first connection object; the second thread section is used for passing through an assembly hole of a second connecting object to be matched with the nut; the polished rod section and the positioning section are sequentially arranged along the direction from the first thread section to the second thread section, the length of the polished rod section is not less than the axial length of the assembly hole of the second connection object, and the positioning section is used for being matched with the assembly hole of the second connection object to position the second connection object; the double-end stud is provided with the positioning section, so that the two connecting objects can be positioned in the assembling process, the assembling precision is improved, and the assembling difficulty is reduced.
Description
Technical Field
The utility model relates to the technical field of connecting pieces, in particular to a double-threaded screw and a threaded connecting assembly.
Background
At present, the double-end screw is generally a rod-shaped structure with two threaded ends, when the double-end screw is used for connecting two connecting objects, a special tool is needed to be used for installing the double-end screw on one of the connecting objects, and then subsequent assembly is carried out.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-end screw to position two connecting objects, reduce the connecting difficulty and improve the assembling precision.
The second purpose of the utility model is to provide a threaded connection assembly based on the double-threaded screw.
In order to achieve the purpose, the utility model provides the following technical scheme:
a double-ended screw, said double-ended screw comprising:
a first threaded section for threaded connection with a first connection object;
a second thread section for passing through the assembly hole of the second connection object and matching with the nut;
the polished rod section and the positioning section are sequentially arranged in the direction from the first thread section to the second thread section, the length of the polished rod section is not less than the axial length of the assembly hole of the second connection object, and the positioning section is used for being matched with the assembly hole of the second connection object to position the second connection object.
Optionally, the connecting device further comprises a limiting section connected between the first thread section and the polished rod section, and the limiting section is used for being abutted, matched and limited with the first connecting object when the first thread section is matched with the first connecting object.
Optionally, the limiting section is of an outer hexagonal structure.
Optionally, the threaded fastener further comprises an operating section connected to an end of the second threaded section remote from the positioning section, the operating section being adapted to cooperate with a disassembly tool to disassemble the double-threaded screw from the first connecting object.
Optionally, the operating section is of an outer hexagonal structure or the operating section has an inner hexagonal groove coaxial with the double-ended screw.
A threaded connection assembly, comprising:
a double-ended screw as described in any one of the above;
and the nut is matched with the second thread section of the double-thread screw.
Optionally, the threaded connection assembly further includes a sleeve, the sleeve is used for being sleeved on one end, extending out of the surface of the second connection object far away from the first connection object, of the double-threaded screw, and the nut is matched with the second connection object to clamp and fix the sleeve.
Optionally, an inner wall of one end of the sleeve, which is far away from the second connection object, is provided with a conical surface, and the nut is pressed against the conical surface of the sleeve through a spherical washer.
According to the technical scheme, the utility model discloses a double-threaded screw, which comprises a first thread section, a light rod section, a positioning section and a second thread section, wherein the first thread section is used for being in threaded connection with a first connection object; the second thread section is used for passing through an assembly hole of a second connecting object to be matched with the nut; the polished rod section and the positioning section are sequentially arranged along the direction from the first thread section to the second thread section, the length of the polished rod section is not less than the axial length of the assembly hole of the second connection object, and the positioning section is used for being matched with the assembly hole of the second connection object to position the second connection object; when the nut is used, the double-threaded screw is in threaded fit with a threaded hole of a first connecting object, then a fitting hole of a second connecting object is sleeved on the double-threaded screw, the fitting hole of the second connecting object is matched with a positioning section of the double-threaded screw for positioning in the sleeving process, after the positioning is completed, the nut is in fit connection with a second threaded section of the double-threaded screw to press the second connecting object to the first connecting object so that the second connecting object and the first connecting object are fixed, and at the moment, the positioning section of the double-threaded screw is separated from the fitting hole of the first connecting object, so that the axial force transmission is not influenced when the nut is screwed down; therefore, the double-end stud can play a role in positioning two connecting objects in the assembling process, and is beneficial to improving the assembling precision and reducing the assembling difficulty.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a double-ended screw provided in accordance with an embodiment of the present invention;
fig. 2 is an assembly schematic view of a threaded connection assembly disclosed in an embodiment of the present invention.
Wherein:
1 is a double-head screw; 101 is a first thread segment; 102 is a limit section; 103 is a polished rod section; 104 is a positioning section; 105 are second thread segments; 2 is a first connection object; 201 is a threaded hole; 3 is a second connection object; 4 is a nut; 5 is a sleeve; and 6 is a spherical washer.
Detailed Description
The core of the utility model is to provide a double-threaded screw, and the structure of the double-threaded screw enables the double-threaded screw to realize the positioning of two connecting objects, reduce the connecting difficulty and improve the assembling precision.
The utility model further provides a threaded connection assembly based on the double-threaded screw.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic view of a double-threaded screw according to an embodiment of the present invention.
The embodiment of the utility model discloses a double-threaded screw 1, and the double-threaded screw 1 comprises a first threaded section 101, a polished rod section 103, a positioning section 104 and a second threaded section 105.
Wherein the first thread segments 101 are adapted to be threadedly connected to the first connection object 2; the second thread section 105 is used for passing through the assembly hole of the second connecting object 3 to be matched with the nut 4; the polished rod section 103 and the positioning section 104 are sequentially arranged along the direction from the first thread section 101 to the second thread section 105, the length of the polished rod section 103 is not less than the axial length of the assembly hole of the second connection object 3, and the positioning section 104 is used for being matched with the assembly hole of the second connection object 3 to position the second connection object 3.
It can be seen that, compared with the prior art, when the double-threaded screw 1 provided by the embodiment of the utility model is applied, the double-threaded screw 1 is in threaded fit with the threaded hole 201 of the first connection object 2, then the assembly hole of the second connection object 3 is sleeved on the double-threaded screw 1, the assembly hole of the second connection object 3 is in fit with the positioning section 104 of the double-threaded screw 1 for positioning in the sleeving process, after the positioning is completed, the nut 4 is in fit connection with the second threaded section 105 of the double-threaded screw 1 to press the second connection object 3 to the first connection object 2 so as to fix the two, at this time, the positioning section 104 of the double-threaded screw 1 is already separated from the assembly hole of the first connection object 2, and it is ensured that the axial force transmission is not affected when the nut 4 is screwed; therefore, the double-end stud can position two connecting objects in the assembling process, the assembling precision is improved, and the assembling difficulty is reduced.
Optionally, the double-threaded screw 1 further comprises a limiting section 102 connected between the first threaded section 101 and the polished rod section 103, the limiting section 102 is used for abutting and matching with the first connection object 2 for limiting when the first threaded section 101 matches with the first connection object 2, the limiting section 102 can provide limiting assistance during the assembly process, avoid the problems of thread slipping and the like caused by excessive torsion of the double-threaded screw 1 relative to the first connection object 2, and play a role of protecting the external threads of the first threaded section 101 and the internal threads of the threaded hole 201 of the first connection object 2.
Alternatively, the position-limiting section 102 is of an outer hexagonal structure so as to be matched with an assembling and disassembling tool such as a wrench when the double-threaded screw 1 is screwed, and of course, in order to facilitate screwing the double-threaded screw 1, the outer hexagonal structure may be replaced by another structure, for example, in other embodiments, an outer hexagonal structure or an inner hexagonal structure may be disposed at an end of the second threaded section 105 of the double-threaded screw 1 away from the positioning section 104.
Specifically, the double-threaded screw 1 further includes an operation section connected to an end of the second threaded section 105 far from the positioning section 104, the operation section is used for cooperating with a disassembling tool to disassemble and assemble the double-threaded screw 1 from the first connection object 2, the operation section is of an outer hexagonal structure, that is, a part or all of an outer wall surface of the operation section is of an outer hexagonal structure, or the operation section has an inner hexagonal groove coaxial with the double-threaded screw 1.
An embodiment of the present invention further provides a threaded connection assembly, as shown in fig. 2, the threaded connection assembly includes the double-threaded screw 1 according to the above embodiment and a nut 4 adapted to the second thread section 105 of the double-threaded screw 1, and as the threaded connection assembly employs the double-threaded screw 1, the threaded connection assembly is referred to the above embodiment for technical effect.
Further, because the polished rod segment 103 is long, the positioning segment 104 is further disposed between the second threaded segment 105 and the polished rod segment 103, and the length of the polished rod segment 103 is not less than the axial length of the assembly hole of the second connection object 3, the threaded connection assembly in the embodiment of the present invention further includes the sleeve 5, the sleeve 5 is used for being sleeved on one end of the double-threaded screw 1, which extends out of the surface of the second connection object 3 away from the first connection object 2, and the nut 4 is matched with the second connection object 3 to clamp and fix the sleeve 5, it should be noted that the sleeve 5 and the nut 4 may adopt an integral structure or a split structure.
Preferably, the inner wall of the end of the sleeve 5 far away from the second connecting object 3 is provided with a conical surface, the nut 4 is pressed on the conical surface of the sleeve 5 through a spherical washer 6, and when the nut is assembled, the direction of pressing force of the nut 4 is adjusted through the spherical washer 6 to be vertically transmitted downwards, so that the sealing reliability is ensured.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A double-ended screw, said double-ended screw comprising:
a first threaded section for threaded connection with a first connection object;
a second thread section for passing through the assembly hole of the second connection object and matching with the nut;
the polished rod section and the positioning section are sequentially arranged in the direction from the first thread section to the second thread section, the length of the polished rod section is not smaller than the axial length of the assembly hole of the second connection object, and the positioning section is used for being matched with the assembly hole of the second connection object to position the second connection object.
2. The double-ended screw according to claim 1, further comprising a stop section connected between said first threaded section and said polished rod section, said stop section for abutting engagement with said first connection object for stopping when said first threaded section is engaged with said first connection object.
3. The double-ended screw of claim 2, wherein the stop segment is of an outer hexagonal configuration.
4. The double-ended screw of claim 1, further comprising an operating section connected to an end of said second threaded section remote from said positioning section, said operating section for engaging a removal tool to remove said double-ended screw from said first connection object.
5. The double-ended screw according to claim 4, wherein said operating section is of an outer hexagonal configuration or said operating section has an inner hexagonal groove coaxial with said double-ended screw.
6. A threaded connection assembly, comprising:
the double-ended screw of any one of claims 1-5;
a nut adapted to the second threaded section of the double-ended screw.
7. The threaded connection assembly of claim 6, further comprising a sleeve for being fitted over an end of the threaded stud that extends beyond a surface of the second connection object that is distal from the first connection object, wherein the nut engages the second connection object to clamp the sleeve in place.
8. The threaded connection of claim 7, wherein an inner wall of an end of the sleeve distal from the second connection object is provided with a tapered surface, and the nut is pressed against the tapered surface of the sleeve by a spherical washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123385350.9U CN216975695U (en) | 2021-12-29 | 2021-12-29 | Double-threaded screw and threaded connection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123385350.9U CN216975695U (en) | 2021-12-29 | 2021-12-29 | Double-threaded screw and threaded connection assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975695U true CN216975695U (en) | 2022-07-15 |
Family
ID=82350469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123385350.9U Active CN216975695U (en) | 2021-12-29 | 2021-12-29 | Double-threaded screw and threaded connection assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975695U (en) |
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2021
- 2021-12-29 CN CN202123385350.9U patent/CN216975695U/en active Active
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