CN219953879U - Reinforcing structure of expansion screw - Google Patents
Reinforcing structure of expansion screw Download PDFInfo
- Publication number
- CN219953879U CN219953879U CN202321442952.XU CN202321442952U CN219953879U CN 219953879 U CN219953879 U CN 219953879U CN 202321442952 U CN202321442952 U CN 202321442952U CN 219953879 U CN219953879 U CN 219953879U
- Authority
- CN
- China
- Prior art keywords
- expansion
- convex ring
- screw
- extrusion
- rod
- 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
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims description 37
- 230000000694 effects Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000012634 fragment Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a reinforcing structure of an expansion screw, wherein a convex ring is extruded into an annular groove on one side, elastic sheets on two sides are forced inwards to extrude on the other side, an extruding part is plugged into a movable station, a screwdriver is inserted into the extruding groove, the forced rotation expansion part slides into the movable station until the extruding part penetrates through the movable station, the extruding part extends out of one end of the convex ring, the convex ring is expanded outwards to be in fixed contact with a port of the movable station, the elastic sheets on two sides are also expanded outwards, so that a rod body is clamped and fixed with the expansion part, and the stability between the expansion part and the screw is improved when the rod body is impacted or extruded.
Description
Technical Field
The utility model relates to the technical field of screws, in particular to a reinforcing structure of an expansion screw.
Background
The expansion screw rod is firstly drilled with holes with corresponding sizes on the fixed body by using an impact electric drill, then the expansion pipe is arranged in the holes, an object to be fixed is stretched into the screw rod, and the screw rod and the expansion pipe are integrated by screwing the nut.
The current expansion screw rod is shown in fig. 1, and the structure of the current expansion screw rod comprises an expansion pipe 01 and a screw rod 02 movably connected with the expansion pipe 01, wherein the screw rod 02 is in a spiral shape 03 along the peripheral wall of the expansion pipe 01, external threads 04 are arranged on the peripheral wall of the screw rod 02, a through groove 05 is formed in the expansion pipe 01, the screw rod stretches into the through groove 05 and is movably connected with the outer wall of the through groove 05, and a groove 07 is formed in the top of the screw rod 02.
When the expansion screw works, the expansion pipe 01 is placed in the counter bore 08, the screwdriver is inserted into the groove 07 to apply force to rotate towards the expansion pipe 01, the screw 02 is extended into the through groove 05, the screw 02 and the expansion pipe 01 are fixed, and meanwhile the expansion pipe 01 is expanded outwards, so that the spiral 03 of the expansion pipe 01 is fixed with the inner peripheral wall of the counter bore 08.
Screw 02 is in the in-process of getting into expansion pipe 01, and screw 02 stretches into in the logical groove 05 and contradicts with logical groove 05 bottom, and screw 02 is to logical groove 05 extrusion contact for expansion pipe 01 outwards expands and is fixed with counter bore 08, and such expansion structure when meetting striking or extrusion, when the bottom of screw 02 carries out friction contact with logical groove 05 bottom, has the space between screw 02 and the logical groove 05 bottom, leads to stability inadequately between screw 02 and the expansion pipe 01.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a reinforcing structure of an expansion screw rod with high stability.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a reinforced structure of expansion screw, including screw rod and expansion member, set up the activity station that runs through its body in the screw rod, expansion member and activity station swing joint, the screw rod includes lid and cylinder, the lid is connected in one side of cylinder, be equipped with the screw thread along the cylinder periphery wall, be equipped with the recess on the lid, expansion member includes the body of rod and extrusion part, extrusion part has elasticity, extrusion part swing joint is in the one end of the body of rod, extrusion part includes bulge loop and shell fragment, the shell fragment has two and symmetry setting on the outer periphery wall of the body of rod, expansion member runs through activity station, so that extrusion part stretches out after the activity station bulge loop and the outside extrusion of shell fragment.
The utility model is further provided with: the end of the rod body is provided with a connecting piece, the connecting piece is provided with an annular groove, the convex ring is arranged on the annular groove, and one end of the elastic piece is fixedly connected with the convex ring.
The utility model is further provided with: the outer wall of the convex ring is provided with anti-slip textures, and the convex ring and the elastic sheet are made of rubber.
The utility model is further provided with: the other end of the rod body is provided with a pipe fitting, an extrusion groove is formed in the pipe fitting, and the extrusion groove is in a straight shape.
Compared with the defects in the prior art, the utility model has the beneficial effects that:
the screw rod inserts in the counter bore, the screwdriver inserts in the recess, the rotatory screw rod of application of force rotates to counter bore direction for the screw rod is fixed with the counter bore, extrudees the bulge loop in the annular groove on one hand, the elastic sheet of both sides inwards application of force extrudes, in inserting the extrusion part to the activity station, the screwdriver inserts the extrusion inslot, the rotatory expansion part of application of force slides in the activity station, it runs through in the activity station to slide the extrusion part, the extrusion part stretches out from bulge loop one end, bulge loop outwards expands and activity station port fixed contact, the elastic sheet of both sides also outwards expands, make the body of rod and expansion part block fixed, when meetting striking or extrusion, stability between expansion part and the screw rod has been improved.
Drawings
FIG. 1 is a prior art installation schematic;
FIG. 2 is a perspective view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of an embodiment of the present utility model;
fig. 4 is a schematic view of the present utility model in a use state.
Screw 1, expansion part 2, screw thread 3, recess 4, activity station 5, body of rod 6, extrusion part 7, bulge loop 8, shell fragment 9, pipe fitting 10, lid 11, cylinder 12, connecting piece 13, annular groove 14, extrusion groove 15.
Description of the embodiments
Embodiments of the present utility model will be further described with reference to fig. 2 to 3.
The special structure of the embodiment comprises a screw 1 and an expansion part 2, wherein a movable station 5 penetrating through a body of the screw 1 is arranged in the screw 1, the expansion part 2 is movably connected with the movable station 5, the screw 1 comprises a cover 11 and a cylinder 12, the cover 11 is connected to one side of the cylinder 12, threads 3 are arranged along the peripheral wall of the cylinder 12, and a groove 4 is arranged on the cover 11 so as to screw the screw 1 into a counter bore.
The expansion part 2 comprises a rod body 6 and an extrusion part 7, the extrusion part 7 is elastic, the extrusion part 7 is movably connected to one end of the rod body 6, the extrusion part 7 comprises a convex ring 8 and a spring piece 9, the spring piece 9 is arranged on the peripheral wall of the rod body 6 in two symmetrical mode, the expansion part 2 penetrates through the movable station 5, and accordingly the convex ring 8 and the spring piece 9 are extruded outwards after the extrusion part 7 stretches out of the movable station 5.
The connecting piece 13 is arranged on the end part of the rod body 6, the annular groove 14 is arranged on the connecting piece 13, the convex ring 8 is arranged on the annular groove 14, one end of the elastic piece 9 is fixedly connected with the convex ring 8, the outer wall of the convex ring 8 is provided with anti-slip textures, the convex ring 8 and the elastic piece 9 are made of rubber, extrusion movement of the elastic piece 9 and the convex ring 8 is realized, and clamping and fixing of the movable station 5 are facilitated.
The other end of the rod body 6 is provided with a pipe fitting 10, the pipe fitting 10 is provided with an extrusion groove 15, the extrusion groove 15 is in a straight shape, and the rod body 6 enters the movable station 5 through force application rotation of the straight-shaped extrusion groove 15.
As shown in fig. 4:
the screw 1 is inserted into the counter bore, the screw driver is inserted into the groove 4, the screw 1 is rotated towards the counter bore direction by applying force, so that the screw 1 is fixed with the counter bore, the convex ring 8 is extruded into the annular groove 14 on one side, the elastic sheets 9 on the two sides are extruded by applying force inwards on the other side, and the extrusion part 7 is plugged into the movable station 5.
The screwdriver is inserted into the extrusion groove 15, the force-applying rotary expansion part 2 slides into the movable station 5, slides until the extrusion part 7 penetrates through the movable station 5, the extrusion part 7 extends out from one end of the convex ring 8, the convex ring 8 is outwards expanded to be fixedly contacted with the port of the movable station 5, the elastic sheets 9 on two sides are outwards expanded, the rod body 6 is fixedly clamped with the expansion part 2, and when the rod body is impacted or extruded, the stability between the expansion part 2 and the screw rod 1 is improved.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model, but one skilled in the art can make common changes and substitutions within the scope of the technical solution of the present utility model.
Claims (4)
1. The utility model provides a reinforced structure of expansion screw, includes screw rod (1) and expansion member (2), has seted up in screw rod (1) and has run through activity station (5) of its body, expansion member (2) and activity station (5) swing joint, its characterized in that: the screw (1) comprises a cover body (11) and a column body (12), the cover body (11) is connected to one side of the column body (12), threads (3) are arranged along the peripheral wall of the column body (12), grooves (4) are arranged on the cover body (11),
the expansion part (2) comprises a rod body (6) and an extrusion part (7), the extrusion part (7) has elasticity, the extrusion part (7) is movably connected with one end of the rod body (6),
the extrusion part (7) comprises a convex ring (8) and elastic pieces (9), the elastic pieces (9) are provided with two and are symmetrically arranged on the peripheral wall of the rod body (6),
the expansion part (2) penetrates through the movable station (5) so that the extrusion part (7) extends out of the rear convex ring (8) and the elastic sheet (9) of the movable station (5) to extrude outwards.
2. A reinforcing structure for an expansion screw according to claim 1, wherein: the end part of the rod body (6) is provided with a connecting piece (13), the connecting piece (13) is provided with an annular groove (14), the convex ring (8) is arranged on the annular groove (14), and one end of the elastic piece (9) is fixedly connected with the convex ring (8).
3. A reinforcing structure for an expansion screw according to claim 2, wherein: the outer wall of the convex ring (8) is provided with anti-slip textures, and the convex ring (8) and the elastic sheet (9) are made of rubber.
4. A reinforcing structure for an expansion screw according to claim 3, wherein: the other end of the rod body (6) is provided with a pipe fitting (10), an extrusion groove (15) is formed in the pipe fitting (10), and the extrusion groove (15) is in a straight shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321442952.XU CN219953879U (en) | 2023-06-07 | 2023-06-07 | Reinforcing structure of expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321442952.XU CN219953879U (en) | 2023-06-07 | 2023-06-07 | Reinforcing structure of expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219953879U true CN219953879U (en) | 2023-11-03 |
Family
ID=88543871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321442952.XU Active CN219953879U (en) | 2023-06-07 | 2023-06-07 | Reinforcing structure of expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219953879U (en) |
-
2023
- 2023-06-07 CN CN202321442952.XU patent/CN219953879U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |