CN110145520A - A kind of expansion connector - Google Patents
A kind of expansion connector Download PDFInfo
- Publication number
- CN110145520A CN110145520A CN201910534168.3A CN201910534168A CN110145520A CN 110145520 A CN110145520 A CN 110145520A CN 201910534168 A CN201910534168 A CN 201910534168A CN 110145520 A CN110145520 A CN 110145520A
- Authority
- CN
- China
- Prior art keywords
- bulge
- nut
- hole
- expansion
- lifting screw
- 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
- 235000010599 Verbascum thapsus Nutrition 0.000 claims description 6
- 244000178289 Verbascum thapsus Species 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- 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
Abstract
The invention discloses a kind of expansion connectors, including lifting screw, first nut, second nut and expansion sleeve, expansion sleeve is equipped with the first bulge, second bulge and adjustment portion, lifting screw includes screw rod and head, first nut, second nut is sleeved on the screw rod, first nut is arranged in the first bulge, second nut is arranged in the second bulge, first nut is axially moveable to make the first bulge distending or retracted for clearance, second nut is axially moveable to make the second bulge distending or retracted for clearance, the head of lifting screw is arranged in the accommodating cavity of adjustment portion, 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, it is formed between the two neighboring gear teeth Tooth socket.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
Simple in view of the deficiencies of the prior art, the present invention intends to provide a kind of structure, installation is readily swollen
Expanded joint fitting.
To achieve the goals above, following technical solution is provided:
A kind of expansion connector, which is characterized in that swollen including lifting screw, the first nut, the second nut and expansion sleeve
Expansion set pipe is the tube structure of inner hollow, is successively arranged the first bulge, the second bulge and tune along the axial direction of expansion sleeve
Section portion, lifting screw include screw rod and the head for being connected to screw rod one end, and the first nut, the second nut are sleeved on the screw rod, and first
Nut, the second nut and lifting screw are arranged inside expansion sleeve, and the first nut is arranged in the first bulge, the second nut
It is arranged in the second bulge, the first nut and the axially opposed sliding of the first bulge are to make the first bulge distending or receipts
Contracting resets, and the second nut and the axially opposed sliding of the second bulge are adjusted to make the second bulge distending or retracted for clearance
Portion is equipped with accommodating cavity for accommodating the head of lifting screw, and the side wall of adjustment portion is equipped with radial adjustment hole, accommodating cavity with
Adjustment hole is connected, and the end face on the head of lifting screw is equipped with the gear teeth axially extended, and the gear teeth are along the circumferential uniform of head
Interval is arranged, and forms 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, pars contractilis is equipped between first bulge and the second bulge, pars contractilis is in corrugated tube shape.
Preferably, first bulge is equipped at least one expanding block that can expand outward, expanding block one end with
The side wall of first bulge is connected, and the opposite other end is separated with the side wall of the first bulge, and expanding block is along expansion sleeve
Axially extending, the second bulge is equipped at least one expanding block that can be expanded outward, expanding block one end and the second bulge
Side wall is connected, and the opposite other end is separated with the side wall of the second 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 first nut is equipped with for by the distracted pushing part of the first bulge, pushing part
With pushing tow face, the shape of the first bulge inner hole and the shape in pushing tow face match, and the outer surface of the second nut, which is equipped with, to be used for
By the distracted pushing part of the second bulge, pushing part has pushing tow face, the shape of the second bulge inner hole and the shape in pushing tow face
Match.
Preferably, the pushing tow face of first nut includes cylindrical surface and the diameter gradually big conical surface, cylindrical surface and the conical surface
The maximum one end of diameter is connected, and the inner hole of the first bulge includes cylindrical hole and diameter gradually big taper hole, cylindrical hole and conic hole
The maximum one end of diameter is connected, the inner wall Relative sliding of the outer surface of the first nut and the first bulge to make bulge distending or
Retracted for clearance,
The pushing tow face of second nut includes cylindrical surface and the diameter gradually big conical surface, the diameter maximum one on cylindrical surface and the conical surface
End is connected, and the inner hole of the second 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 inner wall Relative sliding of the outer surface of the second nut and the second bulge is to make bulge distending or retracted for clearance.
Preferably, the outer surface of first nut is additionally provided with the positive stop strip axially extended, the first bulge it is interior
Hole wall is equipped with the limiting slot matched with positive stop strip, and positive stop strip is embedded in limiting slot,
The outer surface of second nut is additionally provided with the positive stop strip axially extended, and the inner hole wall of the second bulge is equipped with and limit
The limiting slot that item matches, positive stop strip are embedded in limiting slot.
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 assembling schematic diagram of expansion connector of the present invention；
Fig. 3 is the decomposition diagram of expansion connector of the present invention；
Fig. 4 is the expansion sleeve of expansion connector of the present invention and the decomposition diagram of nut；
Fig. 5 is the preceding the schematic diagram of the section structure with after expansion of expansion connector of the present invention expansion；
Fig. 6 is the scheme of installation 1 of expansion connector of the present invention；
Fig. 7 is the scheme of installation 2 of expansion connector of the present invention.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawing.
Embodiment one, referring to Figure 1 to Figure 7, expansion connector provided by the invention include lifting screw 2, the first nut 3,
Second nut 4 and expansion sleeve 1, expansion sleeve 1 are the tube structure of inner hollow, and the axial direction along expansion sleeve 1 is successively arranged
First bulge 11, the second bulge 12 and adjustment portion 13, lifting screw 2 include screw rod 22 and the head for being connected to screw rod one end
21, screw rod 22 is equipped with external screw thread, and the first nut 3, the second nut 4 are equipped with the internal screw thread to match with 22 external screw thread of screw rod,
First nut 3, the second nut 4 are threadedly coupled with screw rod 22, and the first nut 3,4 sets of the second nut are on screw rod 22, the first nut
3, the second nut 4 and lifting screw 2 are arranged inside expansion sleeve 1, and the first nut 3 is arranged in the first bulge 11, and second
Nut 4 is arranged in the second bulge 12, and the first nut 3 and the axially opposed sliding of the first bulge 11 are to make the first expansion
11 distending of portion or retracted for clearance, the second nut 4 is with the axially opposed sliding of the second bulge 12 to keep the second bulge 12 swollen
It opens or retracted for clearance, cylindrical accommodating cavity 131 is equipped in adjustment portion 13, the head 21 of lifting screw 2 is arranged in the accommodating cavity
In 131, the side wall of adjustment portion 13 is equipped with radial adjustment hole 130, and accommodating cavity 131 is connected with adjustment hole 130, lifting screw
The end face on head 21 be equipped with the gear teeth 211 that axially extend, circumferential uniform intervals of the gear teeth 211 along head 21 are arranged, phase
Tooth socket 210 is formed between adjacent two gear teeth 211, tooth socket 210 with the screwdriver bit of Phillips screwdriver for engaging, by crosspoint tip screwdriver head from tune
It is protruded at knothole 130, when reversing screwdriver, the head 21 of screw rod is rotated together with crosspoint tip screwdriver head, i.e., the longitudinal direction of crosspoint tip screwdriver head turns
Turn turns to the lateral rotation of lifting screw 2.The rotation of lifting screw 2 makes the first nut 3 and the second nut 4 towards the head of lifting screw
Portion 21 is mobile, and the first bulge 11 is radially expanded under the action of the first nut 3, and the second bulge 12 is in the second nut 4
Under the action of be radially expanded.
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 side plate 01, positioning
Plate 17 and the locating slot 010 of (or laminate 02) mounting hole of side plate 01 front end cooperate, and prevent the expansion sleeve 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 side plate 01 or laminate 02.
Pars contractilis 14 is equipped between first bulge 11 and the second bulge 12, pars contractilis 14 is in corrugated tube shape.Using swollen
When expanded joint fitting locks side plate 01 and laminate 02, pars contractilis 14 plays the role of tensing two pieces of planks, prevents from shaking.
First bulge 11 is equipped at least one first expanding block 111 that can be expanded outward, 111 one end of the first expanding block
It is connected with the side wall of the first bulge, the opposite other end is separated with the side wall of the first bulge, and the first expanding block 111 is along swollen
Expansion set pipe 1 it is axially extending.In this embodiment, the quantity of the first expanding block 111 is 4.The outer wall of first expanding block 111 is equipped with
For increasing the lines of skin-friction force, to increase frictional force.
Second bulge 12 is equipped at least one second expanding block 121 that can be expanded outward, 121 one end of the second expanding block
It is connected with the side wall of the second bulge 12, the opposite other end is separated with the side wall of the second bulge 12, the second expanding block 121
Along the axially extending of expansion sleeve 1.In this embodiment, the quantity of the second expanding block 121 is 4.The outer wall of second expanding block 121
Equipped with the lines for increasing skin-friction force, to increase frictional force.
The outer surface of first nut 3 is equipped with for by the distracted cricoid pushing part of the first bulge 11, pushing part to have
Pushing tow face 31, the shape of 11 inner hole of the first bulge and the shape in pushing tow face 31 match.
The pushing tow face of first nut 3 includes cylindrical surface 312 and the diameter gradually big conical surface 311, cylindrical surface 311 and the conical surface 311
The maximum one end of diameter is connected, and the inner hole of the first bulge 11 includes cylindrical hole 1102 and diameter gradually big taper hole 1101, cylinder
Hole 1102 is connected with the maximum one end in 1101 aperture of taper hole, and the outer surface of the first nut 3 is opposite with the inner wall of the first bulge 11
Sliding is to make 11 distending of the first bulge or retracted for clearance.
The outer surface of second nut 4 is equipped with for by the distracted cricoid pushing part of the second bulge 12, pushing part to have
Pushing tow face 41, the shape of 12 inner hole of the second bulge and the shape in pushing tow face 41 match.
The pushing tow face 41 of second nut 4 includes cylindrical surface 412 and the diameter gradually big conical surface 411, cylindrical surface 412 and the conical surface
The maximum one end of 411 diameter is connected, and the inner hole of the second bulge 12 includes cylindrical hole 1202 and diameter gradually big taper hole 1201,
Cylindrical hole 1202 is connected with the maximum one end in 1201 aperture of taper hole, the inner wall of the outer surface of the second nut 4 and the second bulge 12
Relative sliding is to make 12 distending of the second bulge or retracted for clearance.
The shape in pushing tow face 31 and pushing tow face 41 can also be round in addition to the combination on cylindrical surface and the conical surface in such as the present embodiment
Cambered surface or other suitable shapes.
The outer surface of first nut 3 is additionally provided with the positive stop strip 313 axially extended, the inner hole wall of the first bulge be equipped with
The limiting slot 1103 that positive stop strip 313 matches, positive stop strip 313 are embedded in limiting slot 1103, and positive stop strip 313 can prevent the second nut
Radial deflection occurs between 3 and expansion sleeve 1.
The outer surface of second nut 4 is additionally provided with the positive stop strip 413 axially extended, and the inner hole wall of the second bulge 12 is equipped with
The limiting slot 1203 matched with positive stop strip 413, positive stop strip 413 are embedded in limiting slot 1203, and positive stop strip 413 can prevent the second spiral shell
Radial deflection occurs between mother 4 and expansion sleeve 1.
The assembly method of expansion connector is as follows:
By the first nut 3,4 sets of the second nut on lifting screw 2, the lifting of the first nut 3, the second nut 4 will be housed
Screw rod 2 is put into the inner hole of the first noumenon 1a (or second ontology 1b) of expansion sleeve, then by the second ontology 1b and the first noumenon
1a aligns split, and positioning column 15 is embedded in location hole 16, using lock seaming machine by the upset formation ailhead in the end of positioning column 15, makes the
One ontology 1a and the second ontology 1b riveting is integrated.
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) by the mounting hole of the first bulge 11 insertion side plate 01 of expansion connector, positioning plate 17 is embedded in side plate 01
The locating slot 010 of mounting hole front end, mounting hole alignment 13 one end of adjustment portion insertion of laminate 02, using screwdriver by screwdriver
Crosspoint tip screwdriver head protrudes into from adjustment hole 130, twists the crosspoint tip screwdriver head of screwdriver, and lifting screw 2 is driven to rotate, lifting screw 2
Rotation keeps the first nut 3 and the second nut 4 mobile towards the head of lifting screw 21, work of first bulge 11 in the first nut 3
It is radially expanded with lower, the outside distending of free-end of the first expanding block 111, effect of second bulge 12 in the second nut 4
Lower to be radially expanded, the outside distending of free-end of the second expanding block 121 locks side plate 01 and laminate 02；
(3) lifting screw continues to rotate, and side plate 01 and laminate 02 can be shunk to tense by the pars contractilis 14 of expansion connector to be leaned on
Together, it avoids shaking between two pieces of planks.
When lifting screw rotates backward, the first nut 3 and the second nut 4 are towards the side opposite with the head 21 of lifting screw
It is mobile, make 12 retracted for clearance of the first bulge 11 and the second bulge, expansion connector repeated multiple times can be dismounted with laminate 02.
The beneficial effects of the present invention are: expansion connector of the present invention is an integral structure, when installation, uses crosspoint tip screwdriver screw
Knife protrudes into from the mounting hole of laminate, and expansion connector and laminate 02 can be locked by twisting crosspoint tip screwdriver, quick and easy for installation, family
Tool splicing is solid and reliable；Expansion connector is to be hidden in inside side plate and laminate, and section furniture is beautiful, repeated multiple times can be torn open
Dress.
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, the first nut, the second nut and expansion sleeve, expansion
Casing is the tube structure of inner hollow, is successively arranged the first bulge, the second bulge and adjusting along the axial direction of expansion sleeve
Portion, lifting screw include screw rod and the head for being connected to screw rod one end, and the first nut, the second nut are sleeved on the screw rod, the first spiral shell
Female, the second nut and lifting screw are arranged inside expansion sleeve, and the first nut is arranged in the first bulge, and the second nut is set
It sets in the second bulge, the first nut and the axially opposed sliding of the first bulge are to make the first bulge distending or contraction
It resets, the second nut and the axially opposed sliding of the second bulge are to make the second bulge distending or retracted for clearance, adjustment portion
Accommodating cavity equipped with the head for accommodating lifting screw, the side wall of adjustment portion are equipped with radial adjustment hole, accommodating cavity and tune
Knothole is connected, and the end face on the head of lifting screw is equipped with the gear teeth axially extended, the gear teeth along head it is circumferential uniformly between
Tooth socket is formed between setting, 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 3, which is characterized in that be equipped with limit hole in the middle part of the positioning plate.
5. expansion connector according to claim 1, which is characterized in that between first bulge and the second bulge
Equipped with pars contractilis, pars contractilis is in corrugated tube shape.
6. expansion connector according to claim 1, which is characterized in that first bulge is equipped at least one can
The expanding block expanded outward, expanding block one end are connected with the side wall of the first bulge, the opposite other end and the first bulge
Side wall separation, expanding block along the axially extending of expansion sleeve, the second bulge be equipped at least one can expand outward it is swollen
Expansion block, expanding block one end are connected with the side wall of the second bulge, and the opposite other end is separated with the side wall of the second bulge, swollen
Expansion block is along the axially extending of expansion sleeve.
7. expansion connector according to claim 6, which is characterized in that the outer wall of the expanding block is equipped with for increasing table
The lines of face frictional force.
8. expansion connector described in any claim in -7 according to claim 1, which is characterized in that first nut
Outer surface is equipped with for by the distracted pushing part of the first bulge, pushing part to have pushing tow face, the shape of the first bulge inner hole
Match with the shape in pushing tow face, the outer surface of the second nut is equipped with for by the distracted pushing part of the second bulge, pushing part
With concave-convex alternate pushing tow face, the shape of the second bulge inner hole and the shape in pushing tow face match.
9. expansion connector according to claim 8, which is characterized in that the pushing tow face of first nut includes cylindrical surface
Gradually the big conical surface, cylindrical surface are connected with the maximum one end of the diameter of the conical surface with diameter, the inner hole of the first bulge include cylindrical hole and
Gradually big taper hole, cylindrical hole are connected diameter with the maximum one end in taper hole aperture, the outer surface of the first nut and the first bulge
Inner wall Relative sliding to making bulge distending or retracted for clearance,
The pushing tow face of second nut includes cylindrical surface and the diameter gradually big conical surface, the maximum one end phase of diameter on cylindrical surface and the conical surface
Even, the inner hole of the second bulge includes cylindrical hole and diameter gradually big taper hole, and cylindrical hole is connected with the maximum one end in taper hole aperture,
The inner wall Relative sliding of the outer surface of second nut and the second bulge is to make bulge distending or retracted for clearance.
10. expansion connector described in any claim in -7 according to claim 1, which is characterized in that first nut
Outer surface be additionally provided with the positive stop strip axially extended, the inner hole wall of the first bulge is equipped with the limit matched with positive stop strip
Slot, positive stop strip are embedded in limiting slot,
The outer surface of second nut is additionally provided with the positive stop strip axially extended, and the inner hole wall of the second bulge is equipped with and positive stop strip phase
The limiting slot of cooperation, positive stop strip are embedded in limiting slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534168.3A CN110145520B (en) | 2019-06-19 | 2019-06-19 | Expansion connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534168.3A CN110145520B (en) | 2019-06-19 | 2019-06-19 | Expansion connecting piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145520A true CN110145520A (en) | 2019-08-20 |
| CN110145520B CN110145520B (en) | 2024-04-02 |
Family
ID=67595818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910534168.3A Active CN110145520B (en) | 2019-06-19 | 2019-06-19 | Expansion connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145520B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513371A (en) * | 2019-09-12 | 2019-11-29 | 广州花都区乐思富科技有限公司 | A kind of expansion connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513371A (en) * | 2019-09-12 | 2019-11-29 | 广州花都区乐思富科技有限公司 | A kind of expansion connector |
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| CN110145520B (en) | 2024-04-02 |
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