CN219755019U - Expansion screw - Google Patents
Expansion screw Download PDFInfo
- Publication number
- CN219755019U CN219755019U CN202320083665.8U CN202320083665U CN219755019U CN 219755019 U CN219755019 U CN 219755019U CN 202320083665 U CN202320083665 U CN 202320083665U CN 219755019 U CN219755019 U CN 219755019U
- Authority
- CN
- China
- Prior art keywords
- screw
- screw sleeve
- swivel nut
- sleeve
- expansion
- Prior art date
- 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
- 239000003292 glue Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model relates to an expansion screw in the technical field of expansion screws, which comprises a screw sleeve, a screw body and first convex blocks, wherein the screw body is inserted into the screw sleeve, one end of the screw body is fixedly connected with the first convex blocks, one end of the screw sleeve is provided with a storage groove, the surface of the screw sleeve is in threaded connection with stop blocks, and at least four symmetrically arranged stop blocks are fixedly connected in the storage groove. Through the storage tank that sets up, when the steadiness to the swivel nut is promoted, can at first insert the wall hole with swivel nut and screw body cooperation in, but the swivel nut makes ball and hole inner wall be laminating roll form afterwards, and the ball of this moment is rolling or when receiving, can be keeping away from the form with the swivel nut, can manually rotate the screw body and make the swivel nut installation accomplish, has realized the effect of being convenient for improve the steadiness, prevents to appear long-time during the use, and the swivel nut is when receiving collision or wearing and tearing, easily appears the bad condition of steadiness, influences life cycle.
Description
Technical Field
The utility model relates to the technical field of expansion screws, in particular to an expansion screw.
Background
The expansion screw is generally a metal expansion screw, and the expansion screw is fixed by utilizing wedge-shaped inclination to promote expansion to generate friction grip force so as to achieve the fixing effect. The screw has one thread and one taper, the expansion screw consists of screw, expansion pipe and other parts, the tail of the screw has conic end with inner diameter greater than that of the expansion pipe. When the nut is screwed down, the screw rod moves outwards, the conical part moves through the axial movement of the screw thread, so that a large positive pressure is formed on the outer peripheral surface of the expansion pipe, and the angle of the cone is small, so that friction self-locking is formed among the wall body, the expansion pipe and the cone, and the fixing effect is achieved.
But still not solve current inflation screw when using, be inconvenient for locking, because inflation screw when using, need support the hole with telescopic one end expansion, improve the steadiness, but use for a long time, or easily lead to the collision screw to become flexible when receiving pressure, lead to the problem that the result of use is not good, this we propose the inflation screw.
Disclosure of Invention
Aiming at the problems, the utility model provides the expansion screw, which has the effect of improving the stability, prevents the stability of the expansion screw from being influenced when the expansion screw is used for a long time or is subjected to collision force, ensures that the service life is poor, has the effect of being convenient to support, and prevents the condition that the expansion screw is inconvenient to install due to large holes formed in a wall when the expansion screw is used.
The technical scheme of the utility model is as follows: the expansion screw comprises a screw sleeve, a screw body and a first bump, wherein the screw body is inserted into the screw sleeve, one end of the screw body is fixedly connected with the first bump, a storage groove is formed in one end of the screw sleeve, stop blocks are connected with the surface of the screw sleeve in a threaded manner, at least four stop blocks which are symmetrically arranged are fixedly connected in the storage groove, and a baffle is fixedly connected with the top end of each stop block.
In a further technical scheme, two symmetrically arranged mounting grooves are formed in the surface of the threaded sleeve, mounting mats are inserted into the mounting grooves, the mounting grooves are connected with the mounting mats through glue adhesion, and at least three symmetrically arranged second protruding blocks are fixedly connected to one side, away from the mounting grooves, of the mounting mats.
In a further technical scheme, a ball is arranged in one side of the baffle, which is far away from the stop block, and the ball penetrates through the surface of the screw sleeve.
In a further technical scheme, grooves corresponding to the balls are formed in the upper surface of the baffle plate, and the grooves are used for supporting the balls.
In a further technical scheme, the second lug is an arc-shaped block, the mounting pad and the second lug are made of rubber, and the mounting pad and the second lug are used for improving the supporting area of the screw sleeve.
The beneficial effects of the utility model are as follows:
1. through the storage tank, when the stability of the screw sleeve is required to be improved, the screw sleeve and the screw body can be matched and inserted into the wall hole, then the screw sleeve can be rotated to enable the balls to be in an attached rolling shape with the inner wall of the hole, the balls at the moment can be far away from the screw sleeve when rolling or being received, the screw body can be manually rotated to enable the screw sleeve to be installed, the effect of improving the stability is achieved, when the screw sleeve is prevented from being used for a long time, the situation that the stability is poor is easy to occur when the screw sleeve is impacted or worn, and the service period is influenced;
2. through the second lug that sets up, when the wall hole is greater than the diameter of swivel nut more, but handheld installation pad cooperation inserts the mounting groove this moment in, and the installation pad and the mounting groove that this moment are glue bonding and are connected, and later the swivel nut is when inserting the hole in, the second lug that this moment can be closely laminating form with the hole inner wall, and the second lug atress that this moment is shrink form, has realized being convenient for to the effect of seting up great hole installation, prevents to appear and is difficult to the installation operation in the use, needs to use with the help of external force instrument.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic side sectional view of a screw sleeve according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a ball structure according to an embodiment of the present utility model;
fig. 4 is a schematic view of a bump structure according to an embodiment of the utility model.
Reference numerals illustrate:
1. a screw sleeve; 2. a screw body; 3. a first bump; 4. a storage tank; 5. a stop block; 6. a baffle; 7. a ball; 8. a mounting groove; 9. a mounting pad; 10. and a second bump.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
Examples:
as shown in fig. 1-4, the screw comprises a screw sleeve 1, a screw body 2 and a first bump 3, wherein the screw body 2 is inserted into the screw sleeve 1, one end of the screw body 2 is fixedly connected with the first bump 3, one end of the screw sleeve 1 is provided with a storage groove 4, the surface of the screw sleeve 1 is in threaded connection with a stop block 5, at least four symmetrically arranged stop blocks 5 are fixedly connected in the storage groove 4, the top end of the stop block 5 is fixedly connected with a baffle 6, a ball 7 is arranged in one side, far away from the stop block 5, of the baffle 6, the ball 7 penetrates through the surface of the screw sleeve 1, a groove corresponding to the ball 7 is formed in the upper surface of the baffle 6, and the groove is used for supporting the ball 7.
The working principle of the technical scheme is as follows:
when the stability of the screw sleeve 1 is required to be improved, the stop block 5 can be rotated to cancel the installation of the screw sleeve 1, glue can be fed into the storage groove 4 through the feeding equipment, then the screw sleeve 1 and the screw sleeve 1 can be matched and inserted into a wall hole at the moment through blocking the storage groove 4 by the installation of the rotatable stop block 5 and the screw sleeve 1, then the ball 7 and the inner wall of the hole can be in a fit rolling state by rotating the screw sleeve 1, the ball 7 can be far away from the screw sleeve 1 when rolling or being received, gaps are formed between the screw sleeve 1 and the ball 7 at the moment, then the glue can be led out to the position between the hole and the screw sleeve 1 along with the gaps, the screw sleeve 1 can be manually rotated before the glue is dried at the moment, so that the installation of the screw sleeve 1 is completed, after the screw sleeve 1 is installed, the glue can be improved in stability between the screw sleeve 1 and the hole after standing, the effect of being convenient to improve the stability is achieved, and the situation that the screw sleeve 1 is easy to be bad when being collided or worn when the screw sleeve 1 is used for a long time is prevented from being used, and the service period is influenced.
In another embodiment, as shown in fig. 1, 2 and 4, two symmetrically arranged mounting grooves 8 are formed on the surface of the screw sleeve 1, a mounting pad 9 is inserted in the mounting groove 8, the mounting groove 8 is connected with the mounting pad 9 through glue adhesion, one side of the mounting pad 9 away from the mounting groove 8 is fixedly connected with at least three symmetrically arranged second protruding blocks 10, the second protruding blocks 10 are arc-shaped blocks, the mounting pad 9 and the second protruding blocks 10 are made of rubber, and the mounting pad 9 and the second protruding blocks 10 are used for increasing the supporting area of the screw sleeve 1.
When the wall hole is greater than the diameter of the swivel nut 1, the installation pad 9 can be held by hand and matched with the installation groove 8, the installation pad 9 and the installation groove 8 are in glue bonding connection, then the swivel nut 1 is inserted into the hole, the second protruding block 10 can be tightly attached to the inner wall of the hole, the diameter of the swivel nut 1 can be increased by matching the installation pad 9 and the second protruding block 10, and meanwhile the installation pad 9 and the second protruding block 10 are made of rubber materials, so that the installation pad 9 and the second protruding block 10 can be stressed to be contracted when being matched with the smaller hole smaller than the hole added by the second protruding block 10 and the swivel nut 1, the effect of being convenient for installing the larger hole is realized, the installation operation difficult to use is prevented, and the swivel nut is required to be used by means of an external force tool.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (5)
1. The expansion screw comprises a screw sleeve (1), a screw body (2) and a first bump (3), wherein the screw body (2) is inserted into the screw sleeve (1), and one end of the screw body (2) is fixedly connected with the first bump (3), and the expansion screw is characterized in that: the screw sleeve is characterized in that a storage groove (4) is formed in one end in the screw sleeve (1), a stop block (5) is connected to the surface of the screw sleeve (1) in a threaded mode, at least four stop blocks (5) which are symmetrically arranged are fixedly connected in the storage groove (4), and a baffle (6) is fixedly connected to the top end of each stop block (5).
2. The expansion screw of claim 1, wherein: two symmetrically arranged mounting grooves (8) are formed in the surface of the threaded sleeve (1), mounting mats (9) are inserted in the mounting grooves (8), the mounting grooves (8) are connected with the mounting mats (9) through glue adhesion, and at least three symmetrically arranged second protruding blocks (10) are fixedly connected to one side, away from the mounting grooves (8), of the mounting mats (9).
3. The expansion screw of claim 1, wherein: the baffle (6) is provided with a ball (7) in one side far away from the stop block (5), and the ball (7) penetrates through the surface of the screw sleeve (1).
4. The expansion screw of claim 1, wherein: the upper surface of the baffle plate (6) is provided with grooves corresponding to the balls (7), and the grooves are used for supporting the balls (7).
5. The expansion screw of claim 2, wherein: the second protruding block (10) is an arc-shaped block, the mounting pad (9) and the second protruding block (10) are made of rubber, and the mounting pad (9) and the second protruding block (10) are used for improving the supporting area of the screw sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320083665.8U CN219755019U (en) | 2023-01-29 | 2023-01-29 | Expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320083665.8U CN219755019U (en) | 2023-01-29 | 2023-01-29 | Expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755019U true CN219755019U (en) | 2023-09-26 |
Family
ID=88083029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320083665.8U Active CN219755019U (en) | 2023-01-29 | 2023-01-29 | Expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755019U (en) |
-
2023
- 2023-01-29 CN CN202320083665.8U patent/CN219755019U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |