CN111878497A - Self-adaptive telescopic expansion screw for assembly building - Google Patents
Self-adaptive telescopic expansion screw for assembly building Download PDFInfo
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- CN111878497A CN111878497A CN202010682632.6A CN202010682632A CN111878497A CN 111878497 A CN111878497 A CN 111878497A CN 202010682632 A CN202010682632 A CN 202010682632A CN 111878497 A CN111878497 A CN 111878497A
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- sleeve
- expansion sleeve
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- 238000005553 drilling Methods 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 abstract description 7
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000009435 building construction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
- F16B13/068—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a self-adaptive telescopic expansion screw for an assembly building, which can be used by matching a plurality of groups of expansion sleeves, can be adaptively adjusted according to different drilling depths, and can reduce the fixing difficulty of a construction device, and is characterized in that a plug is arranged at one end of a head end expansion sleeve, a plurality of head end sliding columns are annularly and equidistantly arranged on the side surface of the head end expansion sleeve, a plurality of anti-disengaging teeth are equidistantly arranged on the head end sliding columns, the anti-disengaging teeth are obliquely arranged in the direction away from the plug, at least a plurality of clearance sliding grooves are equidistantly arranged on the head end expansion sleeve along the axial direction, the plurality of clearance sliding grooves are at least three clearance sliding grooves, the clearance sliding grooves and the head end sliding columns are arranged at intervals, two head end screw sleeves are arranged in the head end expansion sleeve and are respectively positioned at two ends of the head end expansion sleeve, head end grooves are formed on the head end screw sleeves corresponding to the clearance sliding grooves, a plurality of middle sliding columns are annularly, and the plurality of middle sliding columns correspond to the plurality of clearance sliding grooves in the head end expansion sleeve one to one.
Description
Technical Field
The invention discloses a self-adaptive telescopic expansion screw for an assembly building, relates to a self-adaptive telescopic expansion screw for the assembly building, and belongs to the field of building equipment. In particular to a self-adaptive telescopic expansion screw for assembly buildings, which can be adjusted in a self-adaptive manner according to different drilling depths and reduce the fixing difficulty of a construction device by matching multiple groups of expansion sleeves.
Background
In the construction, often can use the inflation screw of various styles to connect fixedly to the connection of spare part, generally need to bore in advance to the inflation screw and establish drilling when using, then put into the downthehole inflation of going into with inflation pipe and screw in proper order and fix, but often can lead to the inflation nail can't insert completely downthehole because the drilling depth is not enough in the in-service use, need to carry out drilling installation probe repeatedly, comparatively inconvenient, especially to some thickness limited can't be on it when boring the too deep inflation hole, lead to the inflation nail can't continue to use, thereby influence the whole efficiency of building construction assembly.
Publication No. CN205744762U discloses a self-adaptive expansion nail, which comprises a nail cap, a nail body, a lantern ring and a telescopic sheet; the nail cap is fixed at one end of the nail body, the lantern ring is movably sleeved on the nail body, and the diameter of a trepanning hole of the lantern ring is smaller than that of the expansion end of the nail body; the nail body is formed by attaching a pair of insertion pieces; the expansion piece is clamped between the pair of insertion pieces, one end of the expansion piece is fixed on the nail cap, the length of the expansion nail is fixed, flexible adjustment and change cannot be carried out according to the depth of a drilled hole, and the expansion nail is limited in use.
Disclosure of Invention
In order to improve the situation, the self-adaptive telescopic expansion screw for the assembly building is provided, which can be adaptively adjusted according to different drilling depths and reduce the fixing difficulty of a construction device by matching a plurality of groups of expansion sleeves.
The invention relates to a self-adaptive telescopic expansion screw for assembling a building, which is realized by the following steps: the invention relates to a self-adaptive telescopic expansion screw for an assembly building, which comprises a head end expansion device, a middle expansion device and a tail end expansion device, wherein the head end expansion device is spliced with one end of the middle expansion device, the tail end expansion device is spliced with the other end of the middle expansion device, the head end expansion device consists of a plug, a head end expansion sleeve, a head end screw sleeve, a clearance chute, a head end sliding column, anti-disengaging teeth and a head end groove, one end of the head end expansion sleeve is provided with the plug, a plurality of head end sliding columns are annularly and equidistantly arranged on the side surface of the head end expansion sleeve, a plurality of anti-disengaging teeth are equidistantly arranged on the head end sliding column, the anti-disengaging teeth are obliquely arranged in the direction away from the plug, at least a plurality of clearance chutes are axially and equidistantly arranged on the head end expansion sleeve, the plurality of clearance chutes are at least three clearance chutes, the clearance chutes and the head end, the head end screw sleeve is provided with a head end groove corresponding to the clearance sliding chute;
the middle expansion device consists of a middle expansion sleeve, a middle sliding column, a middle threaded sleeve and a middle groove, a plurality of middle sliding columns are annularly and equidistantly arranged on the side surface of the middle expansion sleeve, the plurality of middle sliding columns and a plurality of clearance sliding grooves on the head end expansion sleeve are in one-to-one correspondence, a plurality of anti-falling teeth are equidistantly arranged on the middle sliding columns, a plurality of clearance sliding grooves are equidistantly arranged on the middle expansion sleeve, the plurality of clearance sliding grooves on the middle expansion sleeve and a plurality of head end sliding columns are in one-to-one correspondence, the middle threaded sleeve is arranged in one end of the middle expansion sleeve, the middle threaded sleeve is provided with a middle groove corresponding to the clearance sliding grooves on the middle expansion sleeve, and the other end of the middle expansion sleeve is spliced with the;
tail end expansion device tail end expansion shell, screw, limiting plate, spring, tail end swivel nut and keep away empty recess and constitute, and the equidistance is opened on the tail end expansion shell side has a plurality of keep away empty recesses, keep away empty recess and head end traveller corresponding, and annular equidistance is opened on the tail end expansion shell side has a plurality of keep away empty spouts, keep away empty spout and keep away empty recess interval arrangement on the tail end expansion shell, keep away empty spout and middle part traveller on the tail end expansion shell are corresponding, and tail end expansion shell one end and middle part expansion shell one end peg graft mutually, and the limiting plate is arranged in the tail end expansion shell other end, and the spring is arranged in the tail end expansion shell, spring one end and the tail end expansion shell other end are connected, the spring other end and the head end expansion shell other end are connected, and the screw passes limiting plate, spring extension in the head end expansion shell in proper order, the tail end expansion sleeve is provided with a plurality of groups of anti-falling teeth at equal intervals in an annular mode, the end portion of each anti-falling tooth is provided with a tip, the diameter of the head end expansion sleeve is smaller than the inner diameter of the middle expansion sleeve, and the diameter of the middle expansion sleeve is smaller than the inner diameter of the tail end expansion sleeve.
Has the beneficial effects.
The expansion requirement of different drilling hole depths can be met, and the expansion tool is convenient to use.
And secondly, the expansion nail can be used for multiple purposes, the complicated selection and confirmation of the expansion nail type are reduced, and the construction and assembly difficulty is reduced.
Description of the drawings.
FIG. 1 is a perspective view of an adaptive expansion bolt for construction assembly according to the present invention;
FIG. 2 is a schematic structural view of an adaptive expansion bolt for building construction according to the present invention;
fig. 3 is a perspective exploded view of an adaptive telescopic expansion screw for an assembly building according to the present invention.
In the attached drawings
Wherein the method comprises the following steps: the plug comprises a plug (1), a head end expansion sleeve (2), a middle expansion sleeve (3), a tail end expansion sleeve (4), a screw (5), a limiting plate (6), a middle sliding column (7), a spring (8), a middle threaded sleeve (9), a head end threaded sleeve (10), a tail end threaded sleeve (11), a clearance-avoiding sliding groove (12), a tail end sliding column (13), anti-disengaging teeth (14), a head end groove (15), a middle groove (16) and a clearance-avoiding groove (17).
The specific implementation mode is as follows:
example 1
The invention relates to a self-adaptive telescopic expansion screw for assembling a building, which is realized by the following steps: the invention relates to a self-adaptive telescopic expansion screw for an assembly building, which comprises a head end expansion device, a middle expansion device and a tail end expansion device, wherein the head end expansion device is spliced with one end of the middle expansion device, the tail end expansion device is spliced with the other end of the middle expansion device, the head end expansion device consists of a plug (1), a head end expansion sleeve (2), a head end screw sleeve (10), clearance-avoiding sliding grooves (12), a head end sliding column, anti-disengaging teeth (14) and a head end groove (15), one end of the head end expansion sleeve (2) is provided with the plug (1), a plurality of head end sliding columns are annularly and equidistantly arranged on the side surface of the head end expansion sleeve (2), a plurality of anti-disengaging teeth (14) are equidistantly arranged on the head end sliding column, the anti-disengaging teeth (14) are obliquely arranged in the direction far away from the plug (1), at least a plurality of clearance-avoiding sliding grooves (12) are equidistantly arranged on the head end expansion sleeve (2) in the axial direction, the clearance sliding grooves (12) and the head end sliding columns are arranged at intervals, two head end screw sleeves (10) are arranged in the head end expansion sleeve (2) and are respectively positioned at two ends of the head end expansion sleeve (2), and head end grooves (15) are formed in the head end screw sleeves (10) corresponding to the clearance sliding grooves (12);
the middle expansion device consists of a middle expansion sleeve (3), a middle sliding column (7), a middle threaded sleeve (9) and a middle groove (16), a plurality of middle sliding columns (7) are arranged on the side surface of the middle expansion sleeve (3) at an annular equal distance, a plurality of clearance-avoiding sliding chutes (12) on the middle sliding columns (7) and the head end expansion sleeve (2) are in one-to-one correspondence, a plurality of anti-disengaging teeth (14) are arranged on the middle sliding columns (7) at an equal distance, a plurality of clearance-avoiding sliding chutes (12) are arranged on the middle expansion sleeve (3) at an equal distance, a plurality of clearance-avoiding sliding chutes (12) on the middle expansion sleeve (3) are in one-to-one correspondence with a plurality of head end sliding columns, the middle threaded sleeve (9) is arranged in one end of the middle expansion sleeve (3), the middle groove (16) is arranged on the middle expansion sleeve (9) corresponding to the clearance-avoiding sliding chutes (12) on the middle expansion sleeve (3), the other end of the middle expansion,
the tail end expansion device is composed of a tail end expansion sleeve (4), a screw (5), a limiting plate (6), a spring (8), a tail end screw sleeve (11) and clearance grooves (17), wherein the side of the tail end expansion sleeve (4) is equidistantly provided with a plurality of clearance grooves (17), the clearance grooves (17) are corresponding to the head end sliding columns, the side of the tail end expansion sleeve (4) is provided with a plurality of clearance sliding grooves (12) at an annular equal distance, the clearance sliding grooves (12) and the clearance grooves (17) on the tail end expansion sleeve (4) are arranged at intervals, the clearance sliding grooves (12) on the tail end expansion sleeve (4) are corresponding to the middle sliding columns (7), one end of the tail end expansion sleeve (4) is spliced with one end of the middle expansion sleeve (3), the limiting plate (6) is arranged at the other end of the tail end expansion sleeve (4), the spring (8) is arranged in the tail end expansion sleeve (4), one end of the spring (8) is connected with the other end of the tail end expansion, spring (8) other end and head end inflation cover (2) other end are connected, and limiting plate (6), spring (8) are passed in proper order in screw (5) extend to head end inflation cover (2), screw (5) diameter is greater than middle part swivel nut (9), head end swivel nut (10) internal diameter, and annular equidistance has put multiunit anticreep tooth (14) on tail end inflation cover (4), anticreep tooth (14) tip has been put most advanced, head end inflation cover (2) diameter is less than middle part inflation cover (3) internal diameter, middle part inflation cover (3) diameter is less than tail end inflation cover (4) internal diameter.
When the expansion screw is used, firstly, a drilled hole is arranged in an expansion screw (5), force is gradually applied to a tail end expansion sleeve (4), the tail end expansion sleeve (4) overcomes the stress of a spring (8) and moves towards a middle expansion sleeve (3), the middle expansion sleeve (3) moves towards a head end expansion sleeve (2), at the moment, a head end sliding column and a middle sliding column (7) slide in corresponding clearance sliding grooves (12) to form a contraction structure, and then the connection requirement of the shallow hole can be used, the screw (5) is inserted from a limiting plate (6), sequentially penetrates through the tail end expansion sleeve (4) and the middle expansion sleeve (3) and is screwed into the head end expansion sleeve (2), the screw (5) is screwed into the middle thread sleeve (9), a head end groove (15) is formed in the head end thread sleeve (10), and after the screw (5) is inserted, the middle thread sleeve (9) can be replaced, The head end screw sleeve (10) is correspondingly unfolded, the head end expansion sleeve (2) is matched with the anti-falling teeth (14) on the head end expansion sleeve, and the middle expansion sleeve (3) is matched with the anti-falling teeth (14) on the middle expansion sleeve to form expansion friction between the hole and the inner wall of the drilled hole so as to fix the screw (5);
the end part of the anti-falling tooth (14) is provided with a tip end design, after the middle expansion sleeve (3) and the head end expansion sleeve (2) are expanded by inserting a screw (5), the tip end of the end part of the anti-falling tooth (14) can be extruded and stressed to be inserted onto the inner wall of a drill hole, and the friction force between the anti-falling tooth (14) and the drill hole is further increased;
the diameter of the head end expansion sleeve (2) is smaller than the inner diameter of the middle expansion sleeve (3), the diameter of the middle expansion sleeve (3) is smaller than the inner diameter of the tail end expansion sleeve (4), the head end expansion sleeve (2) is inserted into the middle expansion sleeve (3), the middle expansion sleeve (3) is inserted into the tail end expansion sleeve (4), and the head end sliding column and the middle sliding column (7) can slide in the corresponding clearance sliding groove (12) in a limiting manner respectively so as to adjust the adaptability of the expansion screw (5) and adapt to drilling holes at different depths;
the diameter of the screw (5) is larger than the inner diameters of the middle threaded sleeve (9) and the head end threaded sleeve (10), the diameter of the screw (5) is large, the screw (5) is inserted into the middle threaded sleeve (9) and the head end threaded sleeve (10) to push the middle threaded sleeve (9) and the head end threaded sleeve (10) to be scattered to the periphery, so that the middle expansion sleeve (3) and the head end expansion sleeve (2) are expanded to the periphery, the anti-disengaging teeth (14) are driven to abut against and support in a drilled hole, and the whole device is fixed;
the anti-falling teeth (14) are obliquely arranged in the direction far away from the plug (1), the anti-falling teeth (14) are matched with the tail end expansion sleeve (4), the middle expansion sleeve (3) and the head end expansion sleeve (2), and after the screws (5) are inserted into the expansion sleeves, the friction force between the expansion sleeves and the inner wall of the drill hole can be increased, so that the expansion sleeves are prevented from falling off from the drill hole;
the design that a head end sliding column and a middle sliding column (7) are matched with an empty-avoiding sliding groove (12) and an empty-avoiding groove (17) is adopted, the middle sliding column (7) is matched with the empty-avoiding sliding groove (12) on a tail end expansion sleeve (4) and can guide and limit the middle expansion sleeve (3) to enable the middle expansion sleeve to slide relative to the tail end expansion sleeve (4), the head end sliding column is matched with the empty-avoiding sliding groove (12) on the middle expansion sleeve (3) and the empty-avoiding groove (17) on the tail end expansion sleeve (4) to enable the head end expansion sleeve (2) to be limited and guided to enable the head end expansion sleeve to slide relative to the middle expansion sleeve (3) and the tail end expansion sleeve (4) so as to adjust the overall length of;
the middle screw sleeve (9) and the head end screw sleeve (10) are matched with the design of the middle groove (16) and the head end groove (15), the middle groove (16) divides the middle screw sleeve (9) into a plurality of parts without connection, and the head end groove (15) divides the head end screw sleeve (10) into a plurality of parts without connection, so that when the screw (5) is inserted, the middle screw sleeve (9) and the head end screw sleeve (10) can be spread to spread and apply force to the periphery, and then the anti-disengaging teeth (14) are driven by the middle expansion sleeve (3) and the head end expansion sleeve (2) to fix the device;
placing an expansion screw (5) in a drill hole, pushing a limiting plate (6), pushing a tail end expansion sleeve (4), a middle expansion sleeve (3) and a head end expansion sleeve (2) to overcome the stress of a spring (8) to sequentially slide and compress, and respectively sliding a middle sliding column (7) and a head end sliding column in corresponding clearance sliding grooves (12), so that the expansion screw (5) can be adjusted in an adaptive telescopic manner to meet the fixing requirements of drill holes at different depths;
the bolt (5) is inserted, the bolt (5) can sequentially penetrate through the middle threaded sleeve (9) and the head end threaded sleeve (10) and can prop open the middle threaded sleeve (9) and the head end threaded sleeve (10), the middle threaded sleeve (9) and the head end threaded sleeve (10) diffuse to the periphery under the supporting action of the bolt (5) to drive the middle expansion sleeve (3) and the head end expansion sleeve (2) to expand, and further drive the anti-falling teeth (14) to support in the drill hole to fix the device;
the purpose of using through the cooperation of multiunit inflation cover, can carry out the adaptability adjustment according to different drilling depths, reduce the fixed degree of difficulty of construction equipment is reached.
The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims (10)
1. The utility model provides an assembly self-adaptation expansion screw that stretches out and draws back for building which characterized by: the head end expansion device is connected with one end of the middle expansion device in an inserting mode, the other end of the tail end expansion device is connected with the other end of the middle expansion device in an inserting mode, the head end expansion device is composed of a plug, a head end expansion sleeve, a head end screw sleeve, a clearance sliding groove, a head end sliding column, anti-disengaging teeth and a head end groove, the plug is arranged at one end of the head end expansion sleeve, a plurality of head end sliding columns are arranged on the side face of the head end expansion sleeve in an annular equal distance mode, a plurality of anti-disengaging teeth are arranged on the head end sliding columns in an equal distance mode, at least a plurality of clearance sliding grooves are formed in the head end expansion sleeve in an axially equal distance mode and are at least three clearance sliding grooves, the clearance sliding grooves and the head end sliding columns are arranged at intervals, the two head end screw sleeves are arranged in the head end expansion sleeve and are respectively located at two ends of the head end expansion sleeve, the head end, The middle sliding column, the middle threaded sleeve and the middle groove are formed, a plurality of middle sliding columns are arranged on the side face of the middle expansion sleeve at an annular equal distance, a plurality of clearance sliding chutes are in one-to-one correspondence with a plurality of head sliding chutes on the middle sliding column and the head expansion sleeve, a plurality of clearance sliding chutes on the middle sliding column are arranged at an equal distance, a plurality of clearance sliding chutes on the middle expansion sleeve are arranged at an equal distance, a plurality of head sliding chutes on the middle expansion sleeve are in one-to-one correspondence, the middle threaded sleeve is arranged in one end of the middle expansion sleeve, a middle groove is arranged on the middle threaded sleeve corresponding to the clearance sliding chute on the middle expansion sleeve, the other end of the middle expansion sleeve is spliced with the head expansion sleeve, the tail end expansion device is composed of a tail end expansion sleeve, a plurality of clearance grooves, a limiting plate, a spring, a tail end threaded sleeve and a clearance groove, the clearance groove is arranged on the side face of the tail end expansion sleeve, the clearance grooves, empty spout and the empty recess interval arrangement of keeping away on the tail end inflation cover, it is corresponding with middle part traveller to keep away empty spout on the tail end inflation cover, and tail end inflation cover one end is pegged graft mutually with middle part inflation cover one end, and the limiting plate is arranged in on the tail end inflation cover other end, and in the tail end inflation cover was arranged in to the spring, spring one end and the tail end inflation cover other end were connected, the spring other end and the head end inflation cover other end are connected, and the screw passes limiting plate, spring extension in the head end inflation cover in proper order.
2. The self-adaptive telescopic expansion screw for the assembly building as claimed in claim 1, wherein the diameter of the screw is larger than the inner diameter of the middle threaded sleeve and the head threaded sleeve, the diameter of the screw is large, and the support force of the screw inserted into the middle threaded sleeve and the head threaded sleeve pushes the middle threaded sleeve and the head threaded sleeve to scatter to the periphery, so that the middle expansion sleeve and the head expansion sleeve expand to the periphery to drive the anti-disengagement teeth to support in the drill hole.
3. The self-adaptive telescopic expansion screw for the assembly building as claimed in claim 1, wherein the anti-falling teeth are obliquely arranged in a direction away from the plug, the anti-falling teeth are matched with the tail end expansion sleeve, the middle expansion sleeve and the head end expansion sleeve, and after the screw is inserted into the expansion sleeve, the friction force between the expansion sleeve and the inner wall of the drilled hole can be increased, so that the expansion sleeve is prevented from falling off from the drilled hole.
4. The self-adaptive telescopic expansion screw for the assembly building as claimed in claim 1, wherein the head sliding column and the middle sliding column are designed to be matched with the clearance sliding groove and the clearance groove, the middle sliding column is matched with the clearance sliding groove on the tail expansion sleeve to guide and limit the middle expansion sleeve so that the middle expansion sleeve can slide relative to the tail expansion sleeve, and the head sliding column is matched with the clearance sliding groove on the middle expansion sleeve and the clearance groove on the tail expansion sleeve to guide and limit the head expansion sleeve so that the head expansion sleeve can slide relative to the middle expansion sleeve and the tail expansion sleeve to adjust the overall length of the expansion screw.
5. The self-adaptive telescopic expansion screw for the assembly building as claimed in claim 1, wherein the middle screw sleeve and the head end screw sleeve are matched with the middle groove and the head end groove, the middle groove divides the middle screw sleeve into a plurality of non-connection parts, and the head end groove divides the head end screw sleeve into a plurality of non-connection parts, so that when the screw is inserted, the middle screw sleeve and the head end screw sleeve can be spread to spread and apply force to the periphery, and the middle expansion sleeve and the head end expansion sleeve drive the anti-disengaging gear to fix the device.
6. The self-adaptive telescopic expansion screw for the assembly building as claimed in claim 1, wherein the diameter of the head end expansion sleeve is smaller than the inner diameter of the middle expansion sleeve, the diameter of the middle expansion sleeve is smaller than the inner diameter of the tail end expansion sleeve, the head end expansion sleeve is inserted into the middle expansion sleeve, the middle expansion sleeve is inserted into the tail end expansion sleeve, and the head end sliding column and the middle sliding column can respectively slide in the corresponding clearance sliding grooves in a limiting manner so as to adjust the adaptability of the expansion screw and adapt to drilling holes with different depths.
7. The self-adaptive telescopic expansion screw for the assembly building as claimed in claim 1, wherein the expansion screw is placed in a drill hole to push the limiting plate, the limiting plate pushes the tail end expansion sleeve, the middle expansion sleeve and the head end expansion sleeve to overcome the spring stress to sequentially slide and compress, and the middle sliding column and the head end sliding column respectively slide in the corresponding clearance chutes, so that the expansion screw can be adaptively telescopic adjusted.
8. The self-adaptive telescopic expansion screw for the assembly building as claimed in claim 1, wherein the screw is inserted into the screw, the screw can sequentially pass through the middle threaded sleeve and the head threaded sleeve and can prop open the middle threaded sleeve and the head threaded sleeve, and the middle threaded sleeve and the head threaded sleeve are spread all around under the propping action of the screw to drive the middle expansion sleeve and the head expansion sleeve to expand, so as to drive the anti-disengaging teeth to prop in the drilled hole.
9. The self-adaptive telescopic expansion screw for assembly buildings as claimed in claim 1, wherein the tail expansion sleeve is provided with a plurality of sets of anti-falling teeth at equal intervals in a ring shape.
10. The self-adaptive telescopic expansion screw for assembly buildings as claimed in claim 9, wherein the end of the anti-falling tooth is provided with a tip, and after the screw is inserted to expand the middle expansion sleeve and the head expansion sleeve, the tip of the end of the anti-falling tooth can be extruded and forced to be inserted into the inner wall of the drill hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010682632.6A CN111878497B (en) | 2020-07-15 | 2020-07-15 | Self-adaptive telescopic expansion screw for assembly building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010682632.6A CN111878497B (en) | 2020-07-15 | 2020-07-15 | Self-adaptive telescopic expansion screw for assembly building |
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| Publication Number | Publication Date |
|---|---|
| CN111878497A true CN111878497A (en) | 2020-11-03 |
| CN111878497B CN111878497B (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010682632.6A Active CN111878497B (en) | 2020-07-15 | 2020-07-15 | Self-adaptive telescopic expansion screw for assembly building |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB989834A (en) * | 1962-09-10 | 1965-04-22 | Konsolen Handels Gmbh | Improvements in or relating to expansion plugs or bolts |
| CN1160130A (en) * | 1996-03-19 | 1997-09-24 | 吴明欣 | Expansion bolt |
| CN206017363U (en) * | 2016-06-07 | 2017-03-15 | 杭州斯泰新材料技术有限公司 | A kind of chisel synchronous double expansion formula crab-bolts and the mounting structure on concrete |
| CN207261407U (en) * | 2017-10-16 | 2018-04-20 | 李忠玉 | A kind of multi-functional crab-bolt |
| CN207687141U (en) * | 2018-01-03 | 2018-08-03 | 唐兴富 | Internal expansion type Multisection expansion bolt |
| CN207879800U (en) * | 2018-02-09 | 2018-09-18 | 张馨峻 | The anti-de- plug of one kind |
-
2020
- 2020-07-15 CN CN202010682632.6A patent/CN111878497B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB989834A (en) * | 1962-09-10 | 1965-04-22 | Konsolen Handels Gmbh | Improvements in or relating to expansion plugs or bolts |
| CN1160130A (en) * | 1996-03-19 | 1997-09-24 | 吴明欣 | Expansion bolt |
| CN206017363U (en) * | 2016-06-07 | 2017-03-15 | 杭州斯泰新材料技术有限公司 | A kind of chisel synchronous double expansion formula crab-bolts and the mounting structure on concrete |
| CN207261407U (en) * | 2017-10-16 | 2018-04-20 | 李忠玉 | A kind of multi-functional crab-bolt |
| CN207687141U (en) * | 2018-01-03 | 2018-08-03 | 唐兴富 | Internal expansion type Multisection expansion bolt |
| CN207879800U (en) * | 2018-02-09 | 2018-09-18 | 张馨峻 | The anti-de- plug of one kind |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111878497B (en) | 2021-08-31 |
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Inventor after: Geng Xiaorui Inventor after: Other inventor requests not to publish the name Inventor before: Request for anonymity |
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Effective date of registration: 20210812 Address after: 100101 jinxiuxin garden, Datun street, Chaoyang District, Beijing Applicant after: Geng Xiaorui Address before: 221000 Songtian Road, Songlou Town, Feng County, Xuzhou City, Jiangsu Province Applicant before: XUZHOU YISHANG SHIJIA DECORATION ENGINEERING Co.,Ltd. |
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Effective date of registration: 20211103 Address after: 221600 Room 101, former Jing'an family planning office, Jing'an Town, Pei County, Xuzhou City, Jiangsu Province Patentee after: Xuzhou xuanmaocheng Electromechanical Equipment Co.,Ltd. Address before: 100101 jinxiuxin garden, Datun street, Chaoyang District, Beijing Patentee before: Geng Xiaorui |