CN110145521A - A kind of expansion connector - Google Patents
A kind of expansion connector Download PDFInfo
- Publication number
- CN110145521A CN110145521A CN201910534169.8A CN201910534169A CN110145521A CN 110145521 A CN110145521 A CN 110145521A CN 201910534169 A CN201910534169 A CN 201910534169A CN 110145521 A CN110145521 A CN 110145521A
- Authority
- CN
- China
- Prior art keywords
- nut
- bulge
- hole
- expansion
- expansion connector
- 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.)
- Granted
Links
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000010599 Verbascum thapsus Nutrition 0.000 description 2
- 244000178289 Verbascum thapsus Species 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
The invention discloses a kind of expansion connectors, including lifting screw, nut and expansion sleeve, expansion sleeve is equipped with bulge and adjustment portion, lifting screw includes screw rod and head, nut is sleeved on the screw rod, nut and lifting screw are arranged inside expansion sleeve, nut is arranged in bulge, nut and the axially opposed sliding of bulge are to make bulge distending or retracted for clearance, adjustment portion is equipped with the accommodating cavity for accommodating the head of lifting screw, the side wall of adjustment portion is equipped with radial adjustment hole, accommodating cavity is connected with adjustment hole, the end face on the head of lifting screw is equipped with the gear teeth axially extended, circumferential uniform intervals of the gear teeth along head are arranged, tooth socket is formed between the two neighboring gear teeth.The invention has the advantages that compared with the prior art: structure is simple, and installation is easy, and repeated multiple times can dismount.
Description
Technical field
The present invention relates to technical field of fastening more particularly to a kind of expansion connectors.
Background technique
The eccentric connector for plate fitment connection is generally by eccentric wheel, connecting rod, embedded nut group in the prior art
At, also known as three-in-one connector can be used for the connection of side plate (plate of vertical direction) and laminate (plate of horizontal direction), but
It is that the number of parts of the eccentric connector is more, installation is complicated.
It is therefore desirable to be improved.
Summary of the invention
It is simple in view of the deficiencies of the prior art, the present invention intends to provide a kind of structure, it is easy the swollen of installation
Expanded joint fitting.
To achieve the goals above, following technical solution is provided:
A kind of expansion connector, which is characterized in that including lifting screw, nut and expansion sleeve, expansion sleeve is inside
Hollow tube structure is successively arranged bulge and adjustment portion along the axial direction of expansion sleeve, and lifting screw includes screw rod and connection
On the head of screw rod first end, screw rod is equipped with external screw thread, and nut is equipped with the internal screw thread to match with external thread of screw, nut
It is sleeved on the screw rod, nut and lifting screw are arranged inside expansion sleeve, and nut is arranged in bulge, nut and bulge edge
To make bulge distending or retracted for clearance, adjustment portion is equipped with the accommodating for accommodating the head of lifting screw for axially opposing sliding
The side wall of chamber, adjustment portion is equipped with radial adjustment hole, and accommodating cavity is connected with adjustment hole, on the end face on the head of lifting screw
Equipped with the gear teeth axially extended, circumferential uniform intervals of the gear teeth along head are arranged, and form tooth socket between the two neighboring gear teeth.
Preferably, the expansion sleeve includes that the first noumenon of two pairings and the second ontology, the first noumenon are equipped with
At least one location hole, the second ontology are equipped with the positioning column that matches with the location hole, and positioning column insertion positioning hole makes the
One ontology and the second ontology are connected as one.
Preferably, the lateral wall of the expansion sleeve is additionally provided with positioning plate.
Preferably, limit hole is equipped in the middle part of the positioning plate.
Preferably, the bulge is equipped at least one expanding block that can be expanded outward, expanding block one end and expansion
The side wall in portion is connected, and the opposite other end is separated with the side wall of the first bulge, and expanding block is along the axially extending of expansion sleeve.
Preferably, the outer wall of the expanding block is equipped with the lines for increasing skin-friction force.
Preferably, the outer surface of the nut is equipped with for by the distracted pushing part of bulge, pushing part to have pushing tow
Face, the shape of the inner hole of bulge and the shape in pushing tow face match.
Preferably, the pushing tow face includes cylindrical surface and the diameter gradually big conical surface, and the diameter of cylindrical surface and the conical surface is maximum
One end be connected, the inner hole of bulge includes cylindrical hole and diameter gradually big taper hole, cylindrical hole and the maximum one end in taper hole aperture
It is connected, the outer surface of nut and the inner wall Relative sliding of bulge are to make bulge distending or retracted for clearance.
Preferably, the outer surface of the nut is additionally provided with the positive stop strip axially extended, and the inner hole wall of bulge is equipped with
The limiting slot matched with positive stop strip, positive stop strip are embedded in limiting slot.
Preferably, the expansion connector further includes embedded nut, and the inner hole of embedded nut is equipped with to match with screw rod
Internal screw thread, embedded nut is threadedly coupled with the second end of screw rod.
Preferably, the inner hole of the embedded nut is stepped hole, and stepped hole includes hexagon ring and is arranged after hexagon ring
The threaded hole at end, the diameter of hexagon ring are greater than the diameter of threaded hole.
After adopting the above structure, the invention has the advantages that compared with the prior art, the configuration of the present invention is simple, installations
It is easy, repeated multiple times can dismount.
Detailed description of the invention
Fig. 1 is the overall structure figure of expansion connector of the present invention；
Fig. 2 is the decomposition diagram of expansion connector of the present invention；
Fig. 3 is the expansion sleeve of expansion connector of the present invention and the decomposition diagram of nut；
Fig. 4 is the scheme of installation of expansion connector of the present invention；
Fig. 5 is the preceding the schematic diagram of the section structure with after expansion of expansion connector of the present invention expansion.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawing.
Embodiment one, referring to figs. 1 to Fig. 5, expansion connector provided by the invention includes lifting screw 2, nut and expansion
Casing 1, expansion sleeve 1 are the tube structure of inner hollow, are successively arranged bulge 12 and adjustment portion along the axial direction of expansion sleeve 1
13, lifting screw 2 includes screw rod 22 and the head 21 for being connected to screw rod first end, and screw rod 22 is equipped with external screw thread, sets on nut 3
Have the internal screw thread to match with 22 external screw thread of screw rod, 3 sets of nut on screw rod 22, nut 3 and lifting screw 2 are arranged in expansion sleeve
Inside pipe 1, nut 3 is arranged in bulge 12, and nut 3 and the axially opposed sliding of bulge 12 are to make 12 distending of bulge
Or retracted for clearance, adjustment portion 13 is interior to be equipped with cylindrical accommodating cavity 131, and the head 21 of lifting screw 2 is arranged in the accommodating cavity 131
Interior, the side wall of adjustment portion 13 is equipped with radial adjustment hole 130, and cylindrical accommodating cavity 131 is connected with adjustment hole 130, goes up and down
The end face on the head 21 of screw rod is equipped with the gear teeth 211 axially extended, and circumferential uniform intervals of the gear teeth 211 along head 21 are set
It sets, forms tooth socket 210 between the two neighboring gear teeth 211, tooth socket 210 with the screwdriver bit of Phillips screwdriver for engaging, by crosspoint tip screwdriver
Head protrudes into from adjustment hole 130, and when reversing screwdriver, the head 21 of screw rod rotates together with crosspoint tip screwdriver head, i.e. crosspoint tip screwdriver head
Longitudinally rotate the lateral rotation for being converted into lifting screw 2.The rotation of lifting screw 2 makes nut 3 and the second nut 4 towards far from lifting spiral shell
The head 21 of bar is mobile, and bulge 12 is radially expanded under the action of nut 3.
Expansion connector further includes the embedded nut 8 for being mounted in 01 mounting hole of side plate, and the inner hole of embedded nut 8 is set
There is the internal screw thread 81 to match with screw rod 22, embedded nut 8 is threadedly coupled with the second end of screw rod 22.The second end of screw rod 22 is logical
The connection with embedded nut 8 is crossed, keeps mounted laminate 02 and laminate 01 more firm.Furthermore, it is not necessary that embedded nut 8, makes spiral shell
The second end of bar 22 be directly inserted in it is also possible in the mounting hole of side plate 01, such design convenient for laminate 02 from side plate 01
On take off.
The outer surface of embedded nut 8 is equipped with the lines for increasing friction.
Embedded nut 8 is equipped with the external screw thread 83 for connecting with side plate 01, and the inner hole of embedded nut 8 is stepped hole, ladder
Hole includes hexagon ring 82 and the threaded hole 81 that 82 rear end of hexagon ring is arranged in, and the diameter of hexagon ring 82 is greater than the straight of threaded hole 81
Diameter.Hexagon ring 82 is for embedded nut 8 to be screwed into side plate 01, and threaded hole 81 with the second end of screw rod 22 for connecting.
Expansion sleeve 1 includes that the first noumenon 1a of two pairings and the second ontology 1b, the first noumenon 1a are equipped at least one
A location hole 16, the second ontology 1b are equipped with the positioning column 15 matched with the location hole, and positioning column 15 is embedded in location hole 16
It is connected as one the first noumenon 1a and the second ontology 1b.
The lateral wall of expansion sleeve 1 is additionally provided with positioning plate 17, when expansion connector is inserted into the mounting hole of laminate 02, positioning
Plate 17 and the locating slot 010 of (or side plate 01) mounting hole of laminate 02 front end cooperate, and prevent the expansion sleeve 1 of expansion connector from occurring
Deflection.Positioning plate 17 is semicircle, is equipped with limit hole 170 in the middle part of positioning plate 17.Limit hole 170 can will be expanded with screw fit
Connector is locked on laminate 02 or side plate 01.
Bulge 12 is equipped at least one expanding block 121 that can be expanded outward, 121 one end of expanding block and bulge 12
Side wall is connected, and the opposite other end is separated with the side wall of bulge 12, and expanding block 121 is axially extending along expansion sleeve 1.?
In this implementation, the quantity of expanding block 121 is 4.The outer wall of expanding block 121 is equipped with the lines for increasing skin-friction force, with
Increase frictional force.
The outer surface of nut 3 is equipped with for by the distracted cricoid pushing part of bulge, pushing part to have pushing tow face 31, swollen
The shape of the inner hole in swollen portion 12 and the shape in pushing tow face 31 match.
Pushing tow face 31 includes cylindrical surface 312 and the diameter gradually big conical surface 311, and the diameter of cylindrical surface 311 and the conical surface 311 is maximum
One end be connected, the inner hole of bulge 12 includes cylindrical hole 1202 and diameter gradually big taper hole 1201, cylindrical hole 1102 and taper hole
The maximum one end in 1101 apertures is connected, and the outer surface of nut 3 and the inner wall Relative sliding of bulge 12 are to keep bulge 12 swollen
It opens or retracted for clearance.
The shape in pushing tow face 31 in addition to the combination on cylindrical surface and the conical surface in such as the present embodiment, can also be arc surface or other
Suitable shape.
The outer surface of nut 3 is additionally provided with the positive stop strip 313 axially extended, and the inner hole wall of the first bulge is equipped with and limit
The limiting slot 1203 that item 313 matches, positive stop strip 313 are embedded in limiting slot 1203, and positive stop strip 313 can prevent nut 3 and expansion
Radial deflection occurs between casing 1.
The assembly method of expansion connector is as follows:
By 3 sets of nut on lifting screw 2, the lifting screw 2 equipped with nut 3 is put into the first noumenon 1a of expansion sleeve
In the inner hole of (or second ontology 1b), then by the second ontology 1b and the first noumenon 1a contraposition split, positioning column 15 is embedded in location hole
In 16, using lock seaming machine by the upset formation ailhead in the end of positioning column 15, riveting the first noumenon 1a and the second ontology 1b is one
Body.
The application method of expansion connector is as follows:
(1) phase is processed in furniture side panel (plate of vertical direction) 01 and furniture laminated board (plate of horizontal direction) 02 respectively
The mounting hole answered；
(2) embedded nut 8 is screwed into the mounting hole of side plate 01；
(3) adjustment portion of expansion connector 13 is inserted into the mounting hole of laminate 02, positioning plate 17 is embedded in laminate 02 and installs
The locating slot 010 of hole front end；
(4) threaded hole of the second end alignment embedded nut 8 of the screw rod of expansion connector 22 is inserted into, it will using screwdriver
The crosspoint tip screwdriver head of screwdriver protrudes into from adjustment hole 130, twists the crosspoint tip screwdriver head of screwdriver, and lifting screw 2 is driven to rotate, lifting
The rotation of screw rod 2 keeps nut 3 mobile towards the head 21 far from lifting screw, and bulge 12 occurs radial under the action of nut 3
Expansion, the outside distending of the free-end of expanding block 121 are locked at expansion connector in the mounting hole of laminate 02, meanwhile, go up and down spiral shell
The threaded hole 81 of the rotation of bar 2, the second end and embedded nut that make lifting screw 2 is threadedly engaged, and twists the second end of screw rod 22
Enter in embedded nut 8, so that laminate 02 be made to be fixed on side plate 01.
When lifting screw 2 rotates backward, nut 3 is mobile towards the head of lifting screw 21, makes the first bulge 11 and second
12 retracted for clearance of bulge, while the second end of screw rod 22 leaves embedded nut 8, expansion connector can be repeated multiple times with laminate 02
Dismounting.
The beneficial effects of the present invention are: expansion connector of the present invention is two-part construction, crosspoint tip screwdriver screw is used when installation
Knife protrudes into from the mounting hole of laminate, and expansion connector and laminate 02, side plate 01 can be locked by twisting crosspoint tip screwdriver, easy for installation
Fast, furniture splicing is solid and reliable；Expansion connector is to be hidden in inside side plate and laminate, and section furniture is beautiful, can be repeatedly
Being dismounted for multiple times.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (10)
1. a kind of expansion connector, which is characterized in that including lifting screw, nut and expansion sleeve, expansion sleeve is in inside
Empty tube structure is successively arranged bulge and adjustment portion along the axial direction of expansion sleeve, and lifting screw includes screw rod and is connected to
The head of screw rod first end, screw rod are equipped with external screw thread, and nut is equipped with the internal screw thread to match with external thread of screw, nut set
On screw rod, nut and lifting screw are arranged inside expansion sleeve, and nut is arranged in bulge, and nut and bulge are along axis
To Relative sliding to make bulge distending or retracted for clearance, adjustment portion is equipped with the accommodating for accommodating the head of lifting screw
The side wall of chamber, adjustment portion is equipped with radial adjustment hole, and accommodating cavity is connected with adjustment hole, on the end face on the head of lifting screw
Equipped with the gear teeth axially extended, circumferential uniform intervals of the gear teeth along head are arranged, and form tooth socket between the two neighboring gear teeth.
2. expansion connector according to claim 1, which is characterized in that the expansion sleeve includes the first of two pairings
Ontology and the second ontology, the first noumenon are equipped at least one location hole, and the second ontology is equipped with and matches with the location hole
Positioning column, positioning column insertion positioning hole are connected as one the first noumenon and the second ontology.
3. expansion connector according to claim 1, which is characterized in that the lateral wall of the expansion sleeve is additionally provided with positioning
Plate.
4. expansion connector according to claim 1, which is characterized in that the bulge is equipped at least one can be outside
The expanding block of expansion, expanding block one end are connected with the side wall of bulge, the side wall point of the opposite other end and the first bulge
From expanding block is along the axially extending of expansion sleeve.
5. expansion connector according to claim 4, which is characterized in that the outer wall of the expanding block is equipped with for increasing table
The lines of face frictional force.
6. expansion connector described in any claim in -5 according to claim 1, which is characterized in that the appearance of the nut
Face is equipped with for by the distracted pushing part of bulge, pushing part to have pushing tow face, shape and the pushing tow face of the inner hole of bulge
Shape matches.
7. expansion connector according to claim 6, which is characterized in that the pushing tow face includes that cylindrical surface and diameter are gradually big
The conical surface, cylindrical surface is connected with the maximum one end of the diameter of the conical surface, and the inner hole of bulge includes cylindrical hole and diameter gradually big cone
Hole, cylindrical hole are connected with the maximum one end in taper hole aperture, and the outer surface of nut and the inner wall Relative sliding of bulge are swollen to make
Swollen portion's distending or retracted for clearance.
8. expansion connector described in any claim in -5 according to claim 1, which is characterized in that the appearance of the nut
Face is additionally provided with the positive stop strip axially extended, and the inner hole wall of bulge is equipped with the limiting slot matched with positive stop strip, and positive stop strip is embedding
Enter in limiting slot.
9. expansion connector described in any claim in -5 according to claim 1, which is characterized in that the expansion connector
It further include embedded nut, the inner hole of embedded nut is equipped with the internal screw thread to match with screw rod, the second end of embedded nut and screw rod
It is threadedly coupled.
10. the expansion connector according to any claim in claim 9, which is characterized in that the embedded nut
Inner hole is stepped hole, and stepped hole includes hexagon ring and the threaded hole that hexagon ring rear end is arranged in, and the diameter of hexagon ring is greater than screw thread
The diameter in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534169.8A CN110145521B (en) | 2019-06-19 | 2019-06-19 | Expansion connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534169.8A CN110145521B (en) | 2019-06-19 | 2019-06-19 | Expansion connecting piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145521A true CN110145521A (en) | 2019-08-20 |
| CN110145521B CN110145521B (en) | 2024-04-02 |
Family
ID=67595820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910534169.8A Active CN110145521B (en) | 2019-06-19 | 2019-06-19 | Expansion connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145521B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925284A (en) * | 2019-12-13 | 2020-03-27 | 广东乐思富科技有限公司 | Expansion connector |
| CN112095783A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Locking device between modules, node structure and construction method of node structure |
| CN114209183A (en) * | 2022-01-05 | 2022-03-22 | 慕思健康睡眠股份有限公司 | Bedstead and bed |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925284A (en) * | 2019-12-13 | 2020-03-27 | 广东乐思富科技有限公司 | Expansion connector |
| EP3835602A1 (en) * | 2019-12-13 | 2021-06-16 | Lusterful Science and Technology Co., Ltd. | Expansion connector |
| CN112095783A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Locking device between modules, node structure and construction method of node structure |
| CN114209183A (en) * | 2022-01-05 | 2022-03-22 | 慕思健康睡眠股份有限公司 | Bedstead and bed |
| CN114209183B (en) * | 2022-01-05 | 2023-08-29 | 慕思健康睡眠股份有限公司 | Bedstead and bed |
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