CN222479183U - Screw with two-way fixed knot constructs - Google Patents
Screw with two-way fixed knot constructs Download PDFInfo
- Publication number
- CN222479183U CN222479183U CN202421273224.5U CN202421273224U CN222479183U CN 222479183 U CN222479183 U CN 222479183U CN 202421273224 U CN202421273224 U CN 202421273224U CN 222479183 U CN222479183 U CN 222479183U
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- CN
- China
- Prior art keywords
- outer tube
- screw
- screw rod
- nut
- conical part
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 10
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a screw with a bidirectional fixing structure, which comprises an outer tube and an inner screw rod arranged in the outer tube, wherein the outer tube is a cylinder with two open ends, the bottom of the outer tube is provided with an outer conical part and integrally connected, a through channel is arranged in the outer conical part in a hollow mode and communicated with an inner cavity of the outer tube, left-handed threads are arranged in the outer side of the outer tube, right-handed threads are arranged on the inner diameter surface of the outer tube, a screw cap is arranged at the top of the outer tube, the inner screw rod moves up and down along the outer tube in the axial direction, the inner screw rod consists of a screw rod and an inner conical part, the screw rod is a cylinder, the inner conical part is arranged at the bottom of the screw rod, and right-handed threads matched with the right-handed threads on the inner diameter surface of the outer tube are arranged on the outer side of the screw rod. According to the utility model, after the outer pipe main body rotates to enter the inside, the inner screw is reversely rotated, and meanwhile, as the outer pipe is set to be left-handed and the inner screw is set to be right-handed, one screw can be bidirectionally rotated and fixed, and cannot easily fall off, so that the connection compactness is improved.
Description
Technical Field
The utility model relates to the field of screw fasteners, in particular to a screw with a bidirectional fixing structure.
Background
Screw fasteners are of a wide variety including bolts, studs, screws, nuts, self-tapping screws, wood screws, and the like. The conventional screw generally consists of a head and a screw rod, the screw rod can only be provided with a single left-handed or right-handed screw, and if the screw rod is relatively moved between screw surfaces after installation along with the time, the screw rod can slide in the direction of loosening the screw rod at the lower side due to unbalance between upward resistance and downward resistance of the screw surface, so that the screw rod is loosened in a rotating way. It is therefore desirable to provide a new screw that solves the above-mentioned problems.
Disclosure of utility model
The utility model aims to provide a screw with a two-way fixing structure, which is tightly connected and has high stability.
The utility model aims at realizing the screw with the bidirectional fixing structure, which comprises an outer tube and an inner screw rod arranged in the outer tube,
The outer tube is a cylinder body with two open ends, the bottom of the outer tube is provided with an outer conical part which is integrally connected, a through channel is arranged in the outer conical part in a hollow way and is communicated with the inner cavity of the outer tube, the outer side of the outer tube is internally provided with left-handed threads, the inner diameter surface of the outer tube is provided with right-handed threads, and the top of the outer tube is provided with a screw cap;
The inner screw rod moves up and down along the outer tube in the axial direction, the inner screw rod consists of a screw rod and an inner conical part, the screw rod is a cylinder, the inner conical part is arranged at the bottom of the screw rod, and right-handed threads matched with right-handed threads of the inner diameter surface of the outer tube are arranged on the outer side of the screw rod.
Preferably, the center of the nut is provided with an insertion hole, the inner diameter of the insertion hole is consistent with the diameter of the inner cavity of the outer tube, the inner diameter surface of the top of the insertion hole is provided with a retainer ring, and the inner diameter of the retainer ring is smaller than the diameter of the inner cavity of the outer tube.
Preferably, screw cap and screw rod's top all is equipped with the screwdriver fixed slot.
Preferably, when the top of the screw rod is abutted against the lower side surface of the nut, the outer vertical surface of the inner conical part and the outer vertical surface of the outer conical part are connected into an integrated conical surface.
Preferably, the diameter of the screw driver fixing groove on the screw cap is larger than the diameter of the insertion hole.
Compared with the prior art, the utility model has the following advantages:
1. after the outer pipe main body rotates to enter the inside, the inner screw rod is reversely rotated, and meanwhile, as the outer pipe is arranged to be left-handed and the inner screw rod is arranged to be right-handed, one screw can realize bidirectional rotation fixation and cannot easily fall off;
2. Optimize the length of screw rod for the interior conical part of screw rod and the outer conical part of outer tube can form a complete conical surface, and then make things convenient for the screw rotation to get into, improve installation effectiveness.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic view of the structure of the utility model after the inner screw is extended.
Wherein, 1 outer tube, 101 outer cone, 102 nut, 1021 insert hole, 2 inner screw, 201 screw, 202 inner cone, 3 screw driver fixed slot.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-2, a screw having a bidirectional fixing structure includes an outer tube 1, and an inner screw 2 disposed in the outer tube 1,
The outer tube 1 is a cylinder with two open ends, the bottom of the outer tube 1 is provided with an outer conical part 101 and integrally connected, the outer conical part 101 is hollow and provided with a through channel which is communicated with the inner cavity of the outer tube 1, the outside of the outer tube 1 is internally provided with left-handed threads, the inner diameter surface of the outer tube 1 is provided with right-handed threads, and the top of the outer tube 1 is provided with a screw cap 102;
The inner screw rod 2 moves up and down along the outer tube 1 in the axial direction, the inner screw rod 2 consists of a screw rod 201 and an inner conical part 202, the screw rod 201 is a cylinder, the inner conical part 202 is arranged at the bottom of the screw rod, and right-handed threads matched with right-handed threads of the inner diameter surface of the outer tube 1 are arranged on the outer side of the screw rod 201.
As shown in fig. 1-2, an insertion hole 1021 is formed in the center of the nut 102, the inner diameter of the insertion hole 1021 is identical to the diameter of the inner cavity of the outer tube 1, a retainer ring 10211 is arranged on the inner diameter surface of the top of the insertion hole 1021, the inner diameter of the retainer ring 10211 is smaller than the diameter of the inner cavity of the outer tube 1, and the insertion hole is used for inserting a screwdriver matched with a screw driver fixing groove of an inner screw rod, so that the inner screw rod can be conveniently rotated.
As shown in fig. 1-2, screw cap 102 and screw 201 are provided with screw driver fixing grooves 3 at the top, the screw driver fixing grooves of the outer tube are preferably straight grooves, so that screw drivers matched with the outer tube are facilitated, the screw drivers with cross grooves are easy to collide with the top of the inner screw rod due to the fact that the front ends of the screw drivers are inserted deeply during insertion, and the screw driver fixing grooves at the top of the screw rod can be straight grooves or cross grooves.
As shown in fig. 1-2, when the top of the screw 201 abuts against the lower side of the nut 102, the outer vertical surface of the inner conical portion 202 and the outer vertical surface of the outer conical portion 101 are connected into an integral conical surface, so that the screw can rotate integrally after the integral conical surface is formed, and meanwhile, after the screw abuts against the lower side of the nut, the top of the inner screw is limited and cannot expose the outer tube.
As shown in fig. 1-2, the diameter of the screw driver fixing groove 3 on the nut 102 is larger than that of the 1021 of the insertion hole, so that the screw driver matched with the outer tube nut cannot sink into the insertion hole, and the screw driver is convenient for an operator to install.
The working principle of the screw is explained as follows, when the screw is used, the inner screw is reversely rotated until the top of the screw is abutted against the nut, then the screw main body is rotated onto an object to be fixed through the cooperation of the screw driver and the nut until the nut is abutted against the object to be fixed, and then the screw is reversely rotated through the cooperation of the screw driver and the inner screw to be matched with the object to be fixed.
The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421273224.5U CN222479183U (en) | 2024-06-05 | 2024-06-05 | Screw with two-way fixed knot constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421273224.5U CN222479183U (en) | 2024-06-05 | 2024-06-05 | Screw with two-way fixed knot constructs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222479183U true CN222479183U (en) | 2025-02-14 |
Family
ID=94503412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421273224.5U Active CN222479183U (en) | 2024-06-05 | 2024-06-05 | Screw with two-way fixed knot constructs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222479183U (en) |
-
2024
- 2024-06-05 CN CN202421273224.5U patent/CN222479183U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |