CN214742670U - Screw and combination of screw and nut - Google Patents
Screw and combination of screw and nut Download PDFInfo
- Publication number
- CN214742670U CN214742670U CN202023308460.0U CN202023308460U CN214742670U CN 214742670 U CN214742670 U CN 214742670U CN 202023308460 U CN202023308460 U CN 202023308460U CN 214742670 U CN214742670 U CN 214742670U
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- Prior art keywords
- screw
- hole
- nut
- extension
- side wall
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- Expired - Fee Related
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- 230000009977 dual effect Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 244000098674 Pinus cembroides Species 0.000 description 1
- 235000005013 Pinus cembroides Nutrition 0.000 description 1
- 235000008591 Pinus cembroides var edulis Nutrition 0.000 description 1
- 235000015593 Pinus monophylla Nutrition 0.000 description 1
- 235000015594 Pinus parryana Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a screw uses with the nut cooperation, the screw includes the screw rod, and the screw rod includes screw thread portion and connecting thread portion's extension, and the surface of screw thread portion is provided with screw lateral wall internal thread assorted external screw thread, and the extension is provided with the screens. Still include the nut, be provided with the joint structure who matches with the screw on the nut, during the use, the screw rod is emboliaed to the nut, then screws the connecting screw through the screw of screw, treats that the joint structure removes the screens on the screw rod, and the screens is gone into to the automatic card to the joint screw rod, then the nut passes through screw and joint structure dual connection with the screw, and the joint structure is not the screw tightening, is difficult not hard up, has increased the firm degree of connection.
Description
Technical Field
The utility model relates to a fastener technical field especially relates to screw and combination of screw and nut.
Background
The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. The screw is indispensable industry requisite in daily life: extremely small screws used for cameras, glasses, clocks, electronics, and the like; general screws for televisions, electric appliances, musical instruments, furniture, and the like; large screws and nuts are used for engineering, buildings and bridges; transportation equipment, airplanes, electric cars, automobiles, and the like are used with screws of different sizes. The screw has an important task in industry, and as long as there is industry on earth, the function of the screw is always important.
Common screw and nut screw up the back, under the influence of vibrations many times, have the condition that not hard up breaks away from, lead to the fastening not for a long time, need untimely screw up again, increased the numerous and diverse of work to and because of the nut pine takes off the potential safety hazard that probably brings.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need to provide a screw that can be used with a corresponding nut, is not easily loosened, and has a secure fastening effect.
The utility model provides a nut, screw include the screw rod, and the screw rod includes screw thread portion and connecting thread portion's extension, and the surface of screw thread portion is provided with the external screw thread with screw lateral wall internal thread assorted, and the extension is provided with the screens.
Above-mentioned nut is provided with the joint structure that matches with the screw on the nut, and during the use, the screw rod is emboliaed to the nut, then screws the connecting screw through the screw thread of screw hole, treats that the joint structure removes the screens on the screw rod, and the screens is gone into to automatic card to the joint screw rod, then nut and screw rod pass through screw and joint structure dual connection, and the joint structure is not the screw tightening, and difficult not hard up has increased the firm degree of connection.
In one embodiment, the detent is a groove or concave ring for snapping the nut.
In one embodiment, the diameter of the extension is greater than the diameter of the threaded portion.
In one embodiment, the screw further comprises a head connected to an end of the extension remote from the threaded portion, the head having a diameter greater than a diameter of the extension.
The utility model also provides a combination of screw and nut, including above-mentioned screw.
In one of them embodiment, the combination of screw and nut still includes the nut, the nut includes connecting portion and extension, the intermediate part of nut is equipped with the through-hole separately, the through-hole intercommunication connecting portion and extension, the through-hole includes screw and extension hole that communicate each other along its axis, the screw is located connecting portion, the extension hole is located the extension, the lateral wall of screw has the internal thread, the lateral wall in extension hole is equipped with has elastic joint structure, joint structure is outstanding the lateral wall surface in extension hole is used for the joint the screw rod.
In one embodiment, the clamping structure comprises an elastic sheet, the elastic sheet is inclined relative to the side wall of the expansion hole, and the elastic sheet extends from the joint of the elastic sheet and the side wall of the expansion hole to the screw hole.
In one embodiment, in a non-pressed state, the height of the elastic sheet relative to the side wall of the expansion hole is smaller than the height difference between the side wall of the expansion hole and the side wall of the threaded hole.
In one embodiment, the clamping structure further comprises a resetting piece, and two ends of the resetting piece are respectively connected with the side wall of the expansion hole and the elastic sheet.
In one embodiment, the return member is a return spring.
Drawings
Fig. 1 is a schematic view of a nut and screw combination according to the present invention;
FIG. 2 is a schematic view of a screw of the nut and screw combination of FIG. 1;
FIG. 3 is a schematic view of a nut of the nut and screw combination of FIG. 1;
FIG. 4 is a cross-sectional view of the nut of FIG. 3;
FIG. 5 is an enlarged view of portion A of FIG. 4;
fig. 6 is an enlarged schematic view of a portion B in fig. 4.
Description of reference numerals:
the screw 100, the screw 101, the thread portion 102, the extension portion 103, the clip 104, the head portion 105, the nut 200, the connection portion 201, the extension portion 202, the screw hole 203, the extension hole 204, the clamping structure 205, the spring plate 206, the reset piece 207, and the nut and screw combination 500.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 6, the nut 200 according to an embodiment of the present invention is used with the screw 100 to form a nut and screw combination 500, which has the characteristics of dual connection, increased connection reliability, and difficulty in loosening.
The screw 100 comprises a screw rod 101, the screw rod 101 comprises a thread part 102 and an extension part 103 connected with the thread part 102, the outer surface of the thread part 102 is provided with an external thread matched with the internal thread on the side wall of the screw hole 203, and the extension part 103 is provided with a clamping position 104.
The detent 104 may be a groove or a concave ring for snap-fitting the nut 200.
The diameter of the extension portion 103 is larger than that of the thread portion 102, that is, the peripheral surface of the extension portion 103 protrudes out of the peripheral surface of the thread portion 102, the extension portion 103 is mainly used for connecting an object to be fastened and clamping the nut 200, and the thread portion 102 is mainly used for screwing the nut 200 to connect the object to be fastened. The peripheral surface of the extending portion 103 protrudes out of the peripheral surface of the threaded portion 102, so that the nut 200 can be limited in the screwing position on one hand, and a better clamping position can be provided for the clamping position 104 on the other hand.
The screw 100 further comprises a head 105, the head 105 being connected to an end of the extension 103 remote from the threaded portion 102, the head 105 having a diameter greater than the diameter of the extension 103.
The nut 200 comprises a connecting portion 201 and an expanding portion 202, a through hole is formed in the middle of the nut 200, the through hole is communicated with the connecting portion 201 and the expanding portion 202, the through hole comprises a screw hole 203 and an expanding hole 204 which are communicated with each other along the axis of the through hole, the screw hole 203 is located in the connecting portion 201, the expanding hole 204 is located in the expanding portion 202, the side wall of the screw hole 203 is provided with internal threads, the side wall of the expanding hole 204 is provided with an elastic clamping structure 205, and the clamping structure 205 protrudes out of the surface of the side wall of the expanding hole 204 and is used for clamping the screw rod 101.
The diameter of the screw hole 203 is matched with that of the threaded part 102, the internal thread of the screw hole 203 is matched with the external thread of the threaded part 102, the diameter of the expanding hole 204 is matched with that of the extending part 103, and the clamping structure 205 is matched with the clamping position 104. When the clamping structure is used, the nut 200 is sleeved into the thread portion 102 of the screw 101 from the expansion portion 202, then the thread portion 102 is screwed through the internal thread of the screw hole 203, the expansion portion 202 moves to the extension portion 103 along the screw 101, the clamping structure 205 moves to the clamping position 104 on the screw 101 and is automatically clamped into the clamping position 104, the expansion portion 202 is sleeved with the extension portion 103, the screw 101 is clamped, the nut 200 and the screw 101 are in double connection with the clamping structure 205 through the screw hole 203, the clamping structure 205 is not screwed, looseness is not prone to occurring, and the connection firmness is improved.
Further, the diameter of the expanded hole 204 is larger than that of the screw hole 203.
The clamping structure 205 includes a spring 206, the spring 206 is inclined relative to the sidewall of the expanding hole 204, and the spring 206 extends from the connection point of the spring and the sidewall of the expanding hole 204 toward the screw hole 203.
The included angle between the elastic sheet 206 and the side wall of the expanding hole 204 is 10-60 degrees.
Under the state of not being pressed, the height H of the elastic sheet 206 relative to the side wall of the expansion hole 204 is smaller than the height difference L between the side wall of the expansion hole 204 and the side wall of the screw hole 203, so that the phenomenon that when the expansion part 202 is sleeved into the screw 101, the height H is too high to increase the sleeving resistance, and even the external threads of the elastic sheet 206 or the screw 101 are damaged is avoided.
The elastic piece 206 is a metal elastic piece 206, and the metal elastic piece 206 has good elasticity and rigidity, and has a certain reset function, and the rigidity of the metal elastic piece is beneficial to clamping the screw 101.
The clamping structure 205 further includes a reset element 207, and two ends of the reset element 207 are respectively connected to the side wall of the expansion hole 204 and the elastic sheet 206. After the elastic sheet 206 enters the position-locking portion 104, the reset member 207 is bounced, and the power-assisted elastic sheet 206 is reset, so that the end of the elastic sheet 206 abuts against the side wall of the position-locking portion 104. Preferably, the reset piece 207 is a reset spring, which has a good reset effect and is convenient to install.
The utility model discloses a nut 200 uses with the cooperation of screw 100, and dual connection is firm, is difficult for the pine to take off, has prolonged fastening time.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a screw, uses with the nut cooperation, its characterized in that, the screw includes the screw rod, and the screw rod includes screw thread portion and connecting thread portion's extension, and the surface of screw thread portion is provided with screw lateral wall internal thread assorted external screw thread, and the extension is provided with the screens.
2. The screw of claim 1, wherein the detent is a groove or a concave ring for snapping the nut.
3. The screw of claim 1, wherein the diameter of the extension is greater than the diameter of the threaded portion.
4. The screw of claim 1, further comprising a head connected to an end of the extension remote from the threaded portion, the head having a diameter greater than a diameter of the extension.
5. A screw and nut combination comprising a screw according to any one of claims 1 to 4.
6. The combination of the screw and the nut as claimed in claim 5, further comprising a nut, wherein the nut comprises a connecting portion and an expanding portion, a through hole is formed in the middle portion of the nut, the through hole is communicated with the connecting portion and the expanding portion, the through hole comprises a screw hole and an expanding hole which are communicated with each other along the axis of the through hole, the screw hole is located in the connecting portion, the expanding hole is located in the expanding portion, the side wall of the screw hole is provided with an internal thread, the side wall of the expanding hole is provided with an elastic clamping structure, and the clamping structure protrudes out of the surface of the side wall of the expanding hole and is used for clamping the screw rod.
7. The screw and nut combination of claim 6 wherein said enlarged bore has a diameter greater than a diameter of said threaded bore.
8. The screw and nut combination of claim 6, wherein the snap structure comprises a resilient tab, the resilient tab is inclined with respect to the sidewall of the expansion hole, and the resilient tab extends from a connection with the sidewall of the expansion hole toward the screw hole.
9. The screw and nut combination of claim 8, wherein the height of the spring plate relative to the side wall of the expansion hole is less than the height difference between the side wall of the expansion hole and the side wall of the screw hole in the non-pressed state.
10. The combination of the screw and the nut as claimed in claim 8, wherein the clamping structure further comprises a reset member, and two ends of the reset member are respectively connected to the side wall of the expansion hole and the elastic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023308460.0U CN214742670U (en) | 2020-12-31 | 2020-12-31 | Screw and combination of screw and nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023308460.0U CN214742670U (en) | 2020-12-31 | 2020-12-31 | Screw and combination of screw and nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742670U true CN214742670U (en) | 2021-11-16 |
Family
ID=78636642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023308460.0U Expired - Fee Related CN214742670U (en) | 2020-12-31 | 2020-12-31 | Screw and combination of screw and nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742670U (en) |
-
2020
- 2020-12-31 CN CN202023308460.0U patent/CN214742670U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |