CN211082502U - Expansion bolt - Google Patents
Expansion bolt Download PDFInfo
- Publication number
- CN211082502U CN211082502U CN201921406697.7U CN201921406697U CN211082502U CN 211082502 U CN211082502 U CN 211082502U CN 201921406697 U CN201921406697 U CN 201921406697U CN 211082502 U CN211082502 U CN 211082502U
- Authority
- CN
- China
- Prior art keywords
- inflation
- expansion
- head
- screw rod
- cover
- 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.)
- Active
Links
- 230000002349 favourable effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model belongs to the technical field of the technique of bolt and specifically relates to an expansion bolt is related to, including screw rod, inflation cover and nut, the screw rod stretches into the inflation cover, and the one end of screw rod is equipped with the inflation head that the restriction screw rod is deviate from in the inflation cover, and the inflation head is round platform form setting, and inflation head and inflation cover underrun, the other end and the nut threaded connection of screw rod are overlapped in proper order between nut and the inflation cover and are equipped with spring washer and plain washer, the side of inflation head is equipped with the spacing face of a plurality of, the inflation cover with the inflation head underrun one end be equipped with spacing face assorted spacing groove. The utility model has the advantages of being scientific and reasonable in design, simple structure, convenient to use compares with prior art, because spacing face arranges limiting groove in, further restriction inflation head takes place relative motion with the inflation cover to in twisting the nut, make the inflation cover inflation, not only be favorable to improving work efficiency, be favorable to expansion bolts's safe handling moreover.
Description
Technical Field
The utility model belongs to the technical field of the technique of bolt and specifically relates to an expansion bolt is related to.
Background
An expansion bolt is a special screw connector for fixing pipeline branch, hanger, bracket or equipment on wall, floor and column.
The common expansion bolt is generally composed of a nut, a spring washer, a flat washer, an expansion pipe and a screw, wherein the screw extends into the expansion pipe, one end of the screw is provided with an external thread matched with the nut, the other end of the screw is provided with an expansion head mutually extruded with the expansion pipe, the spring washer and the flat washer are sleeved on the screw between the nut and the expansion pipe, and one end of the expansion pipe mutually extruded with the expansion head is provided with an open slot. If the expansion head and the expansion pipe are slipped, the screw slips along with the expansion head and the expansion pipe, the nut is difficult to tighten, and the expansion bolt is not beneficial to safe use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an expansion bolt, it has solved the inflation head and has skidded with the expansion pipe, and the screw rod follows the inflation head and skids with the expansion pipe, is difficult to screw up the problem of nut, is favorable to expansion bolt's safe handling.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides an expansion bolt, includes screw rod, inflation cover and nut, and the screw rod stretches into the inflation cover, and the one end of screw rod is equipped with the inflation head that the restriction screw rod deviates from in the inflation cover, and the inflation head is round platform form setting, and the inflation head hangs down with the inflation cover and connects, and the other end and the nut threaded connection of screw rod are overlapped in proper order between nut and the inflation cover and are equipped with spring washer and plain washer, the side of inflation head is equipped with the spacing face of a plurality of, the inflation cover with the inflation head hangs down one end be equipped with spacing face assorted spacing groove.
By adopting the technical scheme, the expansion bolt is nailed into the wall body, and the expansion head and the expansion sleeve are mutually extruded due to the extrusion of the wall body, so that the expansion head and the expansion sleeve are relatively fixed, the nut is convenient to screw, the expansion sleeve is expanded, and the expansion bolt is fixed in the wall body; when the expansion bolt is extruded by the wall body, the wall body gives a force to the screw rod direction to the expansion head screw rod, so that the expansion head always has a trend of moving towards the screw rod direction, a limit surface designed on the expansion head is arranged in a limit groove formed in the expansion sleeve, the expansion head is further ensured to be relatively fixed with the expansion sleeve, a nut is conveniently screwed, the expansion sleeve is expanded, the expansion bolt is fixed in the wall body, and the safe use of the expansion bolt is facilitated. The utility model has the advantages of being scientific and reasonable in design, simple structure, convenient to use compares with prior art, because spacing face arranges limiting groove in, further restriction inflation head takes place relative motion with the inflation cover to in twisting the nut, make the inflation cover inflation, not only be favorable to improving work efficiency, be favorable to expansion bolts's safe handling moreover.
The utility model discloses further set up to: the limiting surfaces are six, the six limiting surfaces are regularly distributed on the side face of the expansion head, and the limiting grooves are matched with the limiting surfaces.
By adopting the technical scheme, the six limiting surfaces are arranged in the six limiting grooves, so that the low receiving force of the expansion head and the expansion sleeve is uniform, and the relative movement of the expansion head and the expansion sleeve is limited.
The utility model discloses further set up to: the expansion sleeve is provided with a first through hole and a second through hole, the first through hole is in a long strip shape along the length direction of the expansion sleeve, the first through hole is abutted to the expansion head, and the second through hole is located at one end, far away from the expansion head, of the first through hole.
Through adopting above-mentioned technical scheme, when the nut was twisted to the expansion head direction and is moved, because be equipped with first through-hole and second through-hole on the inflation cover for when the expansion head extrudeed to the inflation cover, realize the inflation cover bulging deformation, thereby fix expansion bolts in the wall body.
The utility model discloses further set up to: the screw rod is sequentially sleeved with a spring washer and a flat washer, and the spring washer and the flat washer are located between the nut and the expansion sleeve.
Through adopting above-mentioned technical scheme, spring washer and plain washer separate nut and inflation cover, avoid nut and the direct mutual extrusion of inflation cover, play the effect of protection nut and inflation cover.
To sum up, the utility model discloses a beneficial technological effect does:
the utility model has the advantages of being scientific and reasonable in design, simple structure, convenient to use compares with prior art, because spacing face arranges limiting groove in, further restriction inflation head takes place relative motion with the inflation cover to in twisting the nut, make the inflation cover inflation, not only be favorable to improving work efficiency, be favorable to expansion bolts's safe handling moreover.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a screw; 2. an expansion sleeve; 21. a limiting groove; 23. a first through hole; 24. a second through hole; 3. a nut; 4. an expansion head; 41. a limiting surface; 5. a spring washer; 6. a flat washer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, in order to the utility model discloses an expansion bolt, including screw rod 1, expansion sleeve 2 and nut 3, screw rod 1 stretches into expansion sleeve 2, and one end of screw rod 1 is equipped with expansion head 4 that restricts screw rod 1 and deviate from expansion sleeve 2, and expansion head 4 is the round platform form setting, and expansion head 4 and expansion sleeve 2 underlink, the other end of screw rod 1 and nut 3 threaded connection, and screw rod 1 between nut 3 and expansion sleeve 2 is overlapped in proper order and is equipped with spring washer 5 and plain washer 6; in the embodiment, the screw rod 1 extends into the expansion sleeve 2, so that the expansion head 4 arranged at one end of the screw rod 1 is positioned outside the expansion sleeve 2, and the cross section of one end of the expansion head 4, which is far away from the expansion sleeve 2, is larger than the inner diameter of the expansion sleeve 2; the other end of the screw rod 1, which is far away from the expansion sleeve 2, is in threaded connection with the nut 3, so that the nut 3 and the expansion head 4 are respectively positioned on the outer sides of two ends of the expansion sleeve 2; the outer diameter of the flat washer 6 is larger than that of the expansion sleeve 2, so that the flat washer 6 plays a role of protecting the spring washer 5 and the nut 3;
the expansion sleeve 2 is provided with a first through hole 23 and a second through hole 24, the first through hole 23 is arranged in a strip shape along the length direction of the expansion sleeve 2, and when the expansion sleeve 2 is connected with the expansion head 4 in a low mode, the first through hole 23 is abutted to the expansion head 4; the second through hole 24 is located at one end of the first through hole 23 far away from the expansion head 4, the second through hole 24 is a circular hole, and the diameter of the second through hole 24 is larger than the width of the first through hole 23.
Referring to fig. 1, the side surface of the expansion head 4 is provided with a plurality of limiting surfaces 41, and the lower joint end of the expansion sleeve 2 and the expansion head 4 is provided with a limiting groove 21 matched with the limiting surfaces 41; in the embodiment, six limiting surfaces 41 are arranged, the six limiting surfaces 41 are regularly distributed on the side surface of the expansion head 4, and six limiting grooves 21 are matched with the limiting surfaces 41 and respond; the expansion bolt is nailed into the wall body, when six limiting surfaces 41 are arranged in six limiting grooves 21, the relative movement of the expansion head 4 and the expansion sleeve 2 is limited, the nut 3 is convenient to screw towards the expansion sleeve 2, the expansion sleeve 2 is expanded, and the expansion bolt is fixed in the wall body.
The implementation principle of the embodiment is as follows: the expansion bolt is nailed into the wall body, and the expansion head 4 and the expansion sleeve 2 are mutually extruded due to the extrusion of the wall body, so that the expansion head 4 and the expansion sleeve 2 are relatively fixed, the nut 3 is convenient to screw, the expansion sleeve 2 is expanded, and the expansion bolt is fixed in the wall body; when the expansion bolt is extruded by the wall body, the wall body gives a force to the screw rod 1 direction of the expansion head 4, so that the expansion head 4 always has a tendency of moving towards the screw rod 1 direction, a limit surface designed on the expansion head 4 is arranged in a limit groove 21 formed in the expansion sleeve 2, the expansion head 4 is further ensured to be relatively fixed with the expansion sleeve 2, the nut 3 is conveniently screwed, the expansion sleeve 2 is enabled to expand, the expansion bolt is fixed in the wall body, and the safe use of the expansion bolt is facilitated. The utility model has the advantages of being scientific and reasonable in design, simple structure, convenient to use compares with prior art, because spacing face arranges limiting groove 21 in, further restriction inflation head 4 takes place relative motion with inflation cover 2 to in twisting nut 3, make inflation cover 2 inflation, not only be favorable to improving work efficiency, be favorable to expansion bolts's safe handling moreover.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (4)
1. The utility model provides an expansion bolt, includes screw rod (1), inflation cover (2) and nut (3), and expansion cover (2) are stretched into in screw rod (1), and the one end of screw rod (1) is equipped with expansion head (4) that restriction screw rod (1) deviate from in from inflation cover (2), and expansion head (4) are the setting of round platform form, and expansion head (4) and inflation cover (2) underrun, the other end and nut (3) threaded connection of screw rod (1), its characterized in that: the side of expansion head (4) is equipped with a plurality of spacing face (41), expansion cover (2) with expansion head (4) low joint one end be equipped with spacing face (41) assorted spacing groove (21).
2. An expansion bolt according to claim 1, wherein: the six limiting surfaces (41) are regularly distributed on the side face of the expansion head (4), and the limiting grooves (21) are matched with the limiting surfaces (41).
3. An expansion bolt according to claim 1, wherein: inflation cover (2) are equipped with first through-hole (23) and second through-hole (24), and first through-hole (23) are rectangular form setting along inflation cover (2) length direction, and just first through-hole (23) contradicts with inflation head (4), and second through-hole (24) are located first through-hole (23) and keep away from the one end of inflation head (4).
4. An expansion bolt according to claim 1, wherein: the screw rod (1) is sequentially sleeved with a spring washer (5) and a flat washer (6), and the spring washer (5) and the flat washer (6) are located between the nut (3) and the expansion sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406697.7U CN211082502U (en) | 2019-08-27 | 2019-08-27 | Expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406697.7U CN211082502U (en) | 2019-08-27 | 2019-08-27 | Expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211082502U true CN211082502U (en) | 2020-07-24 |
Family
ID=71625613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921406697.7U Active CN211082502U (en) | 2019-08-27 | 2019-08-27 | Expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211082502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837337A (en) * | 2022-06-21 | 2022-08-02 | 中建科技(济南)有限公司 | Prestress laminated bottom plate with turnover ribs and production and construction process |
| CN115111244A (en) * | 2022-07-22 | 2022-09-27 | 河北省送变电有限公司 | Expansion bolt |
-
2019
- 2019-08-27 CN CN201921406697.7U patent/CN211082502U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837337A (en) * | 2022-06-21 | 2022-08-02 | 中建科技(济南)有限公司 | Prestress laminated bottom plate with turnover ribs and production and construction process |
| CN115111244A (en) * | 2022-07-22 | 2022-09-27 | 河北省送变电有限公司 | Expansion bolt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211082502U (en) | Expansion bolt | |
| CN204476975U (en) | A kind of EXPANSION ANCHOR BOLTS | |
| CN103452211B (en) | Broken line type cone curtain wall and some glass part wherein connect pawl with refuting | |
| CN206157965U (en) | Close joint does not have fossil fragments aluminium veneer curtain | |
| CN205742974U (en) | A kind of architectural engineering fastener | |
| CN205607551U (en) | Temperature sensor fixed clamp device | |
| CN207686409U (en) | A kind of guard rail that can simply have enough to meet the need | |
| CN213926708U (en) | Fastening assembly for prefabricated building | |
| CN201931809U (en) | Chalk sleeve | |
| CN107588068A (en) | The concealed stage pipe frame connector of bolt | |
| CN106078582A (en) | A kind of dismountable sleeve | |
| CN206029705U (en) | Dismountable sleeve | |
| CN208578033U (en) | A kind of connection member | |
| CN106015234A (en) | Expansion screw for cement wall | |
| CN204804120U (en) | Cable anchor clamps | |
| CN207393101U (en) | A kind of Novel pet is got on or off the bus ladder | |
| CN207111648U (en) | The adjustable rod sub-assembly and shock-resistant slant bar assembly of both ends bearing pin | |
| CN201561018U (en) | Anchor bolt for sheets | |
| CN206254733U (en) | A kind of servicing unit for lorry connecting rod Fast Installation | |
| CN216691741U (en) | Steel pipe connector for building engineering | |
| CN205244060U (en) | Novel expand end crab -bolt | |
| CN210033311U (en) | Oil casing anti-reflux device and oil casing | |
| CN204590466U (en) | A kind of combined water proof railing | |
| CN208793418U (en) | A kind of screw rod connector and para-seismic support | |
| CN214738737U (en) | Steel construction rack connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20211220 Granted publication date: 20200724 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220620 Granted publication date: 20200724 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220727 Granted publication date: 20200724 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240127 Granted publication date: 20200724 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240319 Granted publication date: 20200724 |