CN212389625U - Quick-mounting expansion bolt - Google Patents
Quick-mounting expansion bolt Download PDFInfo
- Publication number
- CN212389625U CN212389625U CN202020371799.6U CN202020371799U CN212389625U CN 212389625 U CN212389625 U CN 212389625U CN 202020371799 U CN202020371799 U CN 202020371799U CN 212389625 U CN212389625 U CN 212389625U
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- Prior art keywords
- expansion
- taper sleeve
- screw
- section
- diameter
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- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000006978 adaptation Effects 0.000 claims abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a fast-assembling expansion bolts. The utility model aims at providing a simple structure, convenient to use, do not influence pleasing to the eye fast-assembling expansion bolts. The technical scheme of the utility model is that: the utility model provides a fast-assembling expansion bolts which characterized in that: screw pole and expansion mechanism have, expansion mechanism has taper sleeve and expand tube, and wherein the taper sleeve is inside to have along its axial arrangement's screw through-hole, screw pole one end system has the screwhead, and the other end system has the external screw thread with the screw through-hole adaptation on the taper sleeve, the external screw thread section of this screw pole pass behind the expand tube with taper sleeve threaded connection. The utility model is suitable for a bolt field.
Description
Technical Field
The utility model relates to a fast-assembling expansion bolts is applicable to the bolt field.
Background
The expansion bolt mainly comprises a countersunk head bolt, an expansion pipe, a flat washer, a spring pad and a hexagon nut, wherein a deep hole is drilled at a reserved fixed position of an object through an electric drill, the bolt and the expansion pipe are inserted into the deep hole, the bolt, the expansion pipe and the object to be fixed can be expanded by screwing an external nut in the fixed hole, and then the fixed object is locked and fixed. When the expansion bolt is applied to the decoration field, the nut outside the hole needs to be shielded so as to avoid influencing the appearance.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: aiming at the problems, the quick-mounting expansion bolt has the advantages of simple structure, convenience in use and no influence on attractiveness.
The utility model adopts the technical proposal that: the utility model provides a fast-assembling expansion bolts which characterized in that: screw pole and expansion mechanism have, expansion mechanism has taper sleeve and expand tube, and wherein the taper sleeve is inside to have along its axial arrangement's screw through-hole, screw pole one end system has the screwhead, and the other end system has the external screw thread with the screw through-hole adaptation on the taper sleeve, the external screw thread section of this screw pole pass behind the expand tube with taper sleeve threaded connection.
The taper sleeve is divided into a taper head section and a connecting section along the axial direction of the taper sleeve, wherein the outer diameter of the connecting section is smaller than the inner diameter of the expansion pipe, and the surface of the connecting section is provided with a limiting connecting block; and the expansion pipe is provided with a limiting connecting groove which is parallel to the axial direction of the expansion pipe and corresponds to the limiting connecting block on the taper sleeve.
The cone head section is in a circular truncated cone shape, the end, connected with the connecting section, of the cone head section is a small-diameter end, the outer diameter of the large-diameter end of the cone head section is larger than the inner diameter of the expansion pipe, and the outer diameter of the small-diameter end of the cone head section is smaller than the inner diameter of the expansion pipe.
The side wall of the screw rod is provided with a clamping lug capable of limiting the movement of the expansion tube.
Barbs are arranged on the outer wall of the expansion tube.
The utility model has the advantages that: the utility model discloses in make the taper sleeve on the screw rod remove to the screw head end along the screw rod through rotating the screw rod, because expand tube one end is spacing by the double-layered ear on the panel in drill way or the screw rod, so under the effect of taper sleeve, the expand tube is expanded, makes on firm being fixed in wall body or roof of fast-assembling expansion bolts. The utility model discloses well expose in the less shadow of being convenient for of outer screwhead volume and hide, and can adopt the electricity to criticize the fastening, compare in current expansion bolts need adopt the spanner fastening, the utility model discloses it is more convenient to install.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a perspective view of the embodiment.
FIG. 3 is a schematic view of the shaft of the screw according to the embodiment.
Fig. 4 is a schematic view of an expansion mechanism in an embodiment.
Fig. 5 is a schematic structural diagram of the taper sleeve in the embodiment.
FIG. 6 is a schematic structural diagram of the expansion tube in the embodiment.
1. A screw shaft; 101. a screw head; 102. clamping the lug; 103. an external thread; 2. a taper sleeve; 201. a cone section; 202. a connecting section; 2021. a limiting connecting block; 203. a threaded through hole; 3. expanding the tube; 301. limiting connecting grooves; 302. and barbs.
Detailed Description
As shown in fig. 1 and 2, the present embodiment is a quick-assembling expansion bolt, which has a bolt shank and an expansion mechanism, wherein one end of the bolt shank is provided with a screw head, the other end of the bolt shank is provided with an external thread, a pair of clamping lugs (see fig. 3) are symmetrically arranged on the side wall of the bolt shank at a certain distance from the screw head, and the expansion mechanism comprises a taper sleeve and an expansion tube (see fig. 4).
As shown in fig. 5, in the present embodiment, a threaded through hole is formed in the inner portion of the taper sleeve, the axial direction of the smoke is arranged, the outer wall of the taper sleeve is axially divided into a taper section and a connecting section, wherein the taper section is almost in a truncated cone shape, the end of the taper section connected with the connecting section is a small-diameter end, the outer diameter of the large-diameter end of the taper section is larger than the inner diameter of the expansion pipe, and the outer diameter of the small-diameter end of the taper section is smaller than the inner diameter of the; the outer diameter of the connecting section is smaller than the inner diameter of the expansion pipe, and the surface of the connecting section is provided with a limiting connecting block.
As shown in fig. 6, the end of one end of the expansion tube is provided with a long strip-shaped spacing connection groove which is arranged parallel to the axial direction of the expansion tube, and the outer wall of the expansion tube is provided with barbs which are beneficial to being fixed with the hole wall.
The expand tube overlaps on the linkage segment of taper sleeve in this embodiment to make spacing spread groove on the expand tube correspond with the spacing connecting block on the taper sleeve, spacing connecting block is located spacing spread groove and only can follow spacing spread groove length direction and remove, and spacing spread groove makes the taper sleeve only can follow expand tube axial relative movement with the cooperation of spacing connecting block.
The specific application method of this example is as follows:
the expansion mechanism is driven into the drill hole, the taper sleeve faces inwards, and the expansion pipe is clamped in the drill hole and cannot rotate basically;
the screw rod penetrates through a plate to be fixed and an expansion pipe in the drill hole to be in threaded connection with a taper sleeve in the drill hole;
the screwdriver is adopted to rotate the screw rod through the screw head, and at the moment, the taper sleeve cannot rotate relative to the expansion tube under the action of the limiting connecting block and can only move towards the screw head direction along the axial direction of the expansion tube;
the barb effect of expand tube is difficult to the outer empty external movement down, and the conical head section diameter of taper sleeve is greater than the expand tube internal diameter, and the inner end of expand tube is expanded under the effect of clamping ear and taper sleeve, makes the firm being fixed in the drilling of fast-assembling expansion bolt.
The double-layered ear restricts the expand tube outer end at the expand tube in-process and removes in this embodiment to the cooperation taper sleeve realizes the expand tube inner end and swells, when needs are fixed than thin plate, continues to rotate in the screw rod clamp ear can enter into the expand tube, realizes the needs that different thickness can all fasten.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a fast-assembling expansion bolts which characterized in that: screw pole and expansion mechanism have, expansion mechanism has taper sleeve and expand tube, and wherein the taper sleeve is inside to have along its axial arrangement's screw through-hole, screw pole one end system has the screwhead, and the other end system has the external screw thread with the screw through-hole adaptation on the taper sleeve, the external screw thread section of this screw pole pass behind the expand tube with taper sleeve threaded connection.
2. The quick install expansion bolt of claim 1 wherein: the taper sleeve is divided into a taper head section and a connecting section along the axial direction of the taper sleeve, wherein the outer diameter of the connecting section is smaller than the inner diameter of the expansion pipe, and the surface of the connecting section is provided with a limiting connecting block; and the expansion pipe is provided with a limiting connecting groove which is parallel to the axial direction of the expansion pipe and corresponds to the limiting connecting block on the taper sleeve.
3. The quick install expansion bolt of claim 2 wherein: the cone head section is in a circular truncated cone shape, the end, connected with the connecting section, of the cone head section is a small-diameter end, the outer diameter of the large-diameter end of the cone head section is larger than the inner diameter of the expansion pipe, and the outer diameter of the small-diameter end of the cone head section is smaller than the inner diameter of the expansion pipe.
4. The quick install expansion bolt of claim 1 wherein: the side wall of the screw rod is provided with a clamping lug capable of limiting the movement of the expansion tube.
5. The quick install expansion bolt of claim 1 wherein: barbs are arranged on the outer wall of the expansion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020371799.6U CN212389625U (en) | 2020-03-22 | 2020-03-22 | Quick-mounting expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020371799.6U CN212389625U (en) | 2020-03-22 | 2020-03-22 | Quick-mounting expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212389625U true CN212389625U (en) | 2021-01-22 |
Family
ID=74256785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020371799.6U Expired - Fee Related CN212389625U (en) | 2020-03-22 | 2020-03-22 | Quick-mounting expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212389625U (en) |
-
2020
- 2020-03-22 CN CN202020371799.6U patent/CN212389625U/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: 20210122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |