CN108105225B - A kind of crank block type securing member and connection method - Google Patents
A kind of crank block type securing member and connection method Download PDFInfo
- Publication number
- CN108105225B CN108105225B CN201711337030.1A CN201711337030A CN108105225B CN 108105225 B CN108105225 B CN 108105225B CN 201711337030 A CN201711337030 A CN 201711337030A CN 108105225 B CN108105225 B CN 108105225B
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- China
- Prior art keywords
- pin shaft
- link member
- pedestal
- shaft hole
- bar structure
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000693 micelle Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 44
- 238000005452 bending Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000011111 cardboard Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004513 sizing Methods 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
-
- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adornments (AREA)
Abstract
The present invention provides a kind of crank block type securing members, it mainly include bar structure and locking mechanism, bar structure includes the thread segment being sequentially connected, slide bar section and head, and the thread segment is connected with pre-buried micelle, and internal screw thread compatible with thread segment is offered in micelle；The head of bar structure is protruded into locking mechanism, is connected with locking mechanism.The present invention also provides a kind of board material vertical connection methods.The invention has the benefit that device of the present invention locks member structure by the dead-centre position of crank link mechanism, locking effect is good, and connection fastening strength is high；Fastener cycle is connected without tools such as gimlets, connection and removal efficiency are high manually.
Description
Technical field
The present invention relates to a kind of securing members, and in particular to a kind of crank block type securing member and connection method.
Background technique
Three-in-one link member is made of eccentric wheel, connecting rod and anti-skidding pre-buried sizing material, is mainly used for the connection of plate fitment,
Vertical connection or three plates interactive connection especially between plate fitment plate and plate, not needing screw can be realized the connection of two plates
Fastening.Eccentric wheel is most important connection accessory in three-in-one link member, and three-in-one link member specifically utilizes eccentric wheel bottom to turn round
The radian of the heart in the minds of the stray circle of power bent angle, then when by the plus screw slot of gimlet rotation eccentric wheel, be stuck in radian
Connecting rod can pull to the center of eccentric wheel along radian, thus make connecting rod tense between eccentric wheel and anti-skidding pre-buried micelle away from
From, make between plate and plate connect fastening.The sheet when cross recess of gimlet rotation eccentric wheel, by the connecting plate with movable eccentric wheel
Body rotation.However, since the torque that eccentric wheel is born is big and uneven, it is easy to eccentric wheel be caused to be broken.In addition, making on the market
The eccentric wheel structure of three-in-one link member is complicated, and kirsite is mainly used to cooperate die-casting process manufacture for raw material, always
There are the short phenomenons of intensity deficiency, service life；Eccentric wheel is manufactured using punching block die-casting process, and the requirement to mold is also higher,
Manufacturing process is complicated, and manufacture efficiency is low, high production cost.
Summary of the invention
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of high-intensitive, low cost crank block type
Securing member and connection method.
The technical solution adopted by the present invention are as follows: a kind of crank block type securing member mainly includes bar structure and lock
Locking structure, bar structure include the thread segment being sequentially connected, slide bar section and head, and the thread segment is connected with pre-buried micelle,
Internal screw thread compatible with thread segment is offered in micelle；The head of bar structure is protruded into locking mechanism, with locking mechanism phase
Even.
According to the above scheme, the locking mechanism includes pedestal, crank element, link member and rotational handle, crank element, link member
It is set in pedestal with rotational handle, pedestal passes through respectively with crank element, crank element and link member, link member and rotational handle
Pin shaft connection；Notch is offered on the pedestal, the head of bar structure may pass through notch, protrude into pedestal；The link member
On offer bayonet and card slot, the head of bar structure may pass through bayonet；The pin shaft that the card slot is connected with pedestal and crank element
It is adapted.
According to the above scheme, the pedestal includes circular bottom plate and the arc side plate axially extending from bottom plate edge, institute
Notch is stated on arc side plate, arc side plate is equipped with pin shaft hole A, and the head of the bar structure may pass through notch；It is described
Crank element is U-shaped structure, including mainboard body and two subplate bodies for being located at mainboard body both ends, along the length direction of subplate body
Offer pin shaft hole B and pin shaft hole C；The link member is U-shaped structure, and link member includes main card plate and positioned at main card board ends
Vice card plate, the bayonet are set on main card plate, and the card slot is set on vice card plate；Offered respectively on vice card plate pin shaft hole D and
Pin shaft hole E；The rotational handle includes the ontology positioned at base exterior, and the front end of ontology is compatible with arc side plate inner wall
Segmental arc, the rear end sides of ontology have symmetrically extended downwardly boss, and boss is set in pedestal；Pin shaft hole F is offered on boss；It is described
Pin shaft A is passed through in pin shaft hole A and pin shaft hole B, connects pedestal and crank element；Pin shaft B is passed through in the pin shaft hole C and pin shaft hole D,
Connecting crank part and link member；Pin shaft C is passed through in the pin shaft hole E and pin shaft hole F, connects link member and rotational handle.
According to the above scheme, the crank element, link member and pedestal are respectively adopted sheet metal blanking bending and form.
The present invention also provides a kind of board material vertical connection methods, comprising the following steps:
Step 1: providing securing member as claimed in claim 3；
Step 2: the thread segment of bar structure, is screwed in the internal screw thread of micelle by the pre-buried micelle in the plane hole of plank A；
Step 3: being put into the pedestal of locking mechanism in the end-face hole of plank B, by bar structure inserted base and make the body of rod
The head of structure passes through the notch of pedestal；
Step 4: pushing rotational handle, crank element and link member are turned an angle, the head of bar structure is passed through
The bayonet of link member；
Step 5: pushing rotational handle, rotate clockwise crank element around pin shaft A, the bayonet of link member is to bar structure
Counter motion and pull body of rod structure motion, when crank element, which turns to its bottom, to be bonded with the bottom plate plate face of pedestal, connecting rod
The card slot of part is stuck on pin shaft A and locks, and locks bar structure, link member and crank element, while two pieces of planks are tightened up；
Step 6: rotational handle is rotated by 90 ° counterclockwise, buckle into pedestal, completes the fastening of two pieces of planks.
The invention has the benefit that
1, device of the present invention locks member structure by the dead-centre position of crank link mechanism, and locking effect is good,
Stability is high, and connection fastening strength is high；Fastener cycle is connected without tools such as gimlets, connection and removal efficiency are high manually；
2, rotational handle its ontology after installing is located at the outside of plank end-face hole, facilitates and operates and more laborsaving；
3, critical component all uses sheet metal blanking bending to form, and simple production process is high-efficient, at low cost；Understructure
Simply, intensity is high, and high production efficiency is at low cost；
4, rationally, simple and quick, feasibility is good, high reliablity for apparatus structure design of the present invention.
Detailed description of the invention
Fig. 1 is the decomposition diagram of a specific embodiment of the invention.
Fig. 2 is the structural schematic diagram one of the present embodiment.
Fig. 3 is the structural schematic diagram two of the present embodiment.
Fig. 4 is the structural schematic diagram three of the present embodiment.
Fig. 5 is the structural schematic diagram four of the present embodiment.
Fig. 6 is the connection status diagram one of plate body A and plate body B.
Fig. 7 is the connection status diagram two of plate body A and plate body B.
Fig. 8 is the structural schematic diagram of pedestal in the present embodiment.
Fig. 9 is the structural schematic diagram of crank element in the present embodiment.
Figure 10 is the structural schematic diagram of link member in the present embodiment
Figure 11 is the structural schematic diagram of rotational handle in the present embodiment.
Figure 12 is the structural schematic diagram of bar structure in the present embodiment.
Figure 13 is the structural schematic diagram of micelle in the present embodiment.
Wherein: 1, micelle；2, bar structure；2.1, thread segment；2.2, slide bar section；2.3, head；
3, pedestal；3.1, bottom plate；3.2, arc side plate；3.3, notch；3.4, pin shaft hole A；
4, pin shaft A；5, link member；5.1, main card plate；5.2, vice card plate；5.3, pin shaft hole D；5.4, pin shaft hole E；5.5, block
Slot；5.6, bayonet；6, rotational handle；6.1, ontology；6.2, boss；6.3, pin shaft hole F；7, pin shaft B；8, crank element；8.1, main
Plate body；8.2, subplate body；8.3, pin shaft hole B；8.4, pin shaft hole C；9, plank A；10, plank B.
Specific embodiment
For a better understanding of the present invention, the present invention is further described in the following with reference to the drawings and specific embodiments.
It mainly include bar structure 2 and locking mechanism such as a kind of Fig. 1 ~ crank block type securing member shown in fig. 5,
As shown in figure 12, bar structure 2 includes thread segment 2.1, slide bar section 2.2 and the head 2.3 being sequentially connected, the thread segment 2.1
It is connected with pre-buried micelle 1, internal screw thread (as shown in figure 13) compatible with thread segment 2.1 is offered in micelle 1；Bar structure
2 head 2.3 is protruded into locking mechanism, is connected with locking mechanism.
In the present invention, the locking mechanism includes pedestal 3, crank element 8, link member 5, rotational handle 6, pin shaft A4, pin shaft
B7 and short axle；The crank element 8, link member 5 and rotational handle 6 are mounted in pedestal 3, and pedestal 3 and crank element 8 pass through pin shaft
A is connected, and crank element 8 is connected with link member 5 by pin shaft B, and link member 5 is connected with rotational handle 6 by pin shaft C；The pedestal 3
On offer notch 3.3, the head 2.3 of bar structure 2 may pass through notch 3.3, protrude into the inside of pedestal 3；On the link member 5
Bayonet 5.6 and card slot 5.5 are offered, the head of bar structure 1 may pass through bayonet 5.6；The card slot 5.5 is adapted with pin shaft A.
As shown in figure 8, the pedestal 3 includes circular bottom plate 3.1 and the curved side axially extending from 3.1 edge of bottom plate
Plate 3.2, the notch 3.3 are opened on arc side plate 3.2, are also opened on arc side plate 3.2 there are two pin shaft hole A3.4, the bar
The head 1.3 of body structure 1 may pass through notch 3.3, protrude into pedestal 3；Two pin shaft hole A3.4 are symmetrically divided centered on notch 3.3
Cloth；As shown in figure 9, the crank element 8 is U-shaped structure, including mainboard body 8.1 and it is located at two of 8.1 both ends of mainboard body
Subplate body 8.2 offers pin shaft hole B8.3 and pin shaft hole C8.4 along the length direction of subplate body 8.2；As shown in Figure 10, the company
Rod piece 5 is U-shaped structure, and link member 5 includes main card plate 5.1 and the vice card plate 5.2 positioned at 5.1 both ends of main card plate, the bayonet 5.6
On main card plate 5.1, bayonet 5.6 is matched with slide bar section 2.2；The card slot 5.6 is opened on vice card plate 5.2, vice card plate
Pin shaft hole D5.3 and pin shaft hole E5.4 are offered on 5.2 respectively；As shown in figure 11, the rotational handle 6 includes being located at outside pedestal 3
The ontology 6.1 in portion, the rear end sides of ontology 6.1 have symmetrically extended downwardly boss 6.2, and boss 6.2 is located in pedestal 3, boss 6.2
On offer pin shaft hole F6.3；The pin shaft A4 sequentially passes through pin shaft hole A3.4 and pin shaft hole B8.3, connects pedestal 3 and crank element
8；The pin shaft B7 sequentially passes through pin shaft hole C8.4 and pin shaft hole D5.3, connecting crank part 8 and link member 5；The short axle is successively
Across pin shaft hole E5.4 and pin shaft hole F6.3, link member 5 and rotational handle 6 are connected.
Critical component such as crank element 8, link member 5 and pedestal 3 etc. in the present invention are all made of sheet metal blanking bending and form.
The present invention is illustrated the connection method so that orthogonal plank A9 is connected with plank B10 as an example, such as schemes
Shown in 6 and Fig. 7.
A kind of board material vertical connection method, specifically includes the following steps:
Step 1: providing securing member as described above；
Step 2: the pre-buried micelle 1 in the plane hole of plank A9, screws in micelle 1 for the thread segment 2.1 of bar structure 2
Internal screw thread；
Step 3: the ontology 6.1 for being put into the pedestal 3(rotational handle 6 of locking mechanism in the end-face hole of plank B10 is certainly wooden
Stretched out in the end-face hole of plate B10), by 2 inserted base 3 of bar structure and the head 2.3 of bar structure 2 is made to pass through the slot of pedestal 3
Mouth 3.3；
Step 4: pushing rotational handle 6, crank element 8 and link member 5 are turned an angle, the head of bar structure 2 is made
Across the bayonet 5.6 of link member 5；
Step 5: pushing the ontology 6.1 of rotational handle 6, rotate clockwise crank element 8 around pin shaft A4, at this time link member 5
Counter motion from bayonet 2.3 to bar structure 2 and pull slide bar section 2.2 move, when crank element 8 turns to its bottom and pedestal
When 3 3.1 plate face of bottom plate fitting, the card slot 5.5 of link member 5 is stuck on pin shaft A4 and locks, at this time by bar structure 2, link member 5
The slider-crank mechanism formed with crank element 8 is in dead-centre position, and the active force that bar structure 2 acts on link member 5 passes through
The Pivot axle (namely pin shaft A4) of crank element 8, therefore the active force of bar structure 2 can not make crank element 8 and 5 turns of link member
Dynamic, bar structure 2, link member 5 and crank element 8 are fully connected locked, while two pieces of planks are tightened up；
Step 6: rotational handle 6 is rotated by 90 ° counterclockwise, buckle into pedestal 3, completes the fastening of two pieces of planks.
When disassembly, handle 6 is deducted, handle 6 is pulled perpendicular to the direction of plank B, crank element 8 and link member 5 is driven to rotate,
So that the card slot 5.5 of link member 5 disengages pin shaft A4, link member 5 rotates clockwise can be by the head 2.3 of bar structure 2 from connecting rod
Deviate from the bayonet 5.6 of part 5, mobile detachable connection of plank A9.
The above description is only a preferred embodiment of the present invention, is not limited to, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it for those skilled in the art, still can be to documented by foregoing embodiments
Technical solution is modified or equivalent replacement of some of the technical features, should be included in protection model of the invention
Within enclosing.
Claims (4)
1. a kind of crank block type securing member, which is characterized in that mainly include bar structure and locking mechanism, bar structure
Including thread segment, slide bar section and the head being sequentially connected, the thread segment is connected with pre-buried micelle, offers in micelle and spiral shell
The compatible internal screw thread of line section；The head of bar structure is protruded into locking mechanism, is connected with locking mechanism；The locking mechanism packet
Pedestal, crank element, link member and rotational handle are included, crank element, link member and rotational handle are set in pedestal, pedestal and crank
Part, crank element and link member, link member and rotational handle are connected by pin shaft respectively；Notch, bar are offered on the pedestal
The head of body structure may pass through notch, protrude into pedestal；Bayonet and card slot, the head of bar structure are offered on the link member
It may pass through bayonet；The card slot pin shaft connected with pedestal and crank element is adapted.
2. crank block type securing member as described in claim 1, which is characterized in that the pedestal includes circular bottom plate
And the arc side plate axially extending from bottom plate edge, the notch are set on arc side plate, arc side plate is equipped with pin shaft hole
The head of A, the bar structure may pass through notch；The crank element is U-shaped structure, including mainboard body and is located at mainboard body
Two subplate bodies at both ends, offer pin shaft hole B and pin shaft hole C along the length direction of subplate body；The link member is U-shaped knot
Structure, link member include main card plate and the vice card plate positioned at main card board ends, and the bayonet is set on main card plate, and the card slot is set to
On vice card plate；Pin shaft hole D and pin shaft hole E are offered on vice card plate respectively；The rotational handle includes the sheet positioned at base exterior
The front end of body, ontology is segmental arc compatible with arc side plate inner wall, and the rear end sides of ontology have symmetrically extended downwardly boss, convex
Platform is located in pedestal, and pin shaft hole F is offered on boss；Pin shaft A is passed through in the pin shaft hole A and pin shaft hole B, connects pedestal and song
Shank member；Pin shaft B, connecting crank part and link member are passed through in the pin shaft hole C and pin shaft hole D；The pin shaft hole E and pin shaft hole F
It is interior to pass through pin shaft C, connect link member and rotational handle.
3. crank block type securing member as described in claim 1, which is characterized in that the crank element, link member and bottom
Seat is respectively adopted sheet metal blanking bending and forms.
4. a kind of board material vertical connection method, which comprises the following steps:
Step 1: providing securing member as claimed in claim 3；
Step 2: the thread segment of bar structure, is screwed in the internal screw thread of micelle by the pre-buried micelle in the plane hole of plank A；
Step 3: being put into the pedestal of locking mechanism in the end-face hole of plank B, by bar structure inserted base and make bar structure
Head pass through pedestal notch；
Step 4: pushing rotational handle, crank element and link member are turned an angle, the head of bar structure is made to pass through connecting rod
The bayonet of part；
Step 5: pushing rotational handle, rotate clockwise crank element around pin shaft A, the bayonet of link member is to the anti-of bar structure
To moving and pull body of rod structure motion, when crank element, which turns to its bottom, to be bonded with the bottom plate plate face of pedestal, link member
Card slot is stuck on pin shaft A and locks, and locks bar structure, link member and crank element, while two pieces of planks are tightened up；
Step 6: rotational handle is rotated by 90 ° counterclockwise, buckle into pedestal, completes the fastening of two pieces of planks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337030.1A CN108105225B (en) | 2017-12-14 | 2017-12-14 | A kind of crank block type securing member and connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337030.1A CN108105225B (en) | 2017-12-14 | 2017-12-14 | A kind of crank block type securing member and connection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108105225A CN108105225A (en) | 2018-06-01 |
| CN108105225B true CN108105225B (en) | 2019-07-26 |
Family
ID=62215873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711337030.1A Active CN108105225B (en) | 2017-12-14 | 2017-12-14 | A kind of crank block type securing member and connection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105225B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209510810U (en) * | 2018-08-01 | 2019-10-18 | 深圳市晓星科技有限公司 | Arc locks connector and packaging LED screen |
| CN114320109A (en) * | 2021-12-30 | 2022-04-12 | 杭州睿影科技有限公司 | Security door |
| CN114922890B (en) * | 2022-05-11 | 2023-06-02 | 北京北汽模塑科技有限公司 | Positioning structure for simulating automobile welding screw |
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|---|---|---|---|---|
| US4690298A (en) * | 1985-04-04 | 1987-09-01 | Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh | Remotely-handled replaceable component |
| EP2309137A1 (en) * | 2009-09-19 | 2011-04-13 | Hettich-Heinze GmbH & Co. KG | Dowel pin on a connection device |
| CN201836160U (en) * | 2010-10-29 | 2011-05-18 | 浙江联通家具配件有限公司 | Strengthened connecting part for furniture wall plates |
| CN201896826U (en) * | 2010-11-30 | 2011-07-13 | 宁波市新颍家具有限公司 | Furniture connecting component |
| CN201934441U (en) * | 2010-12-30 | 2011-08-17 | 曹蕾 | Furniture connector |
| JP2013238251A (en) * | 2012-05-11 | 2013-11-28 | Oka Kokusai Boeki Kk | Connection means for knock-down furniture |
| CN203770320U (en) * | 2014-02-28 | 2014-08-13 | 震旦（中国）有限公司 | Plate connecting device and plate type combining device |
| CN105937532A (en) * | 2016-05-17 | 2016-09-14 | 湖北工程学院 | Cam connection fastener and using method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6408659B1 (en) * | 2000-12-06 | 2002-06-25 | Handyway Co., Ltd. | Quick lock |
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2017
- 2017-12-14 CN CN201711337030.1A patent/CN108105225B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4690298A (en) * | 1985-04-04 | 1987-09-01 | Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh | Remotely-handled replaceable component |
| EP2309137A1 (en) * | 2009-09-19 | 2011-04-13 | Hettich-Heinze GmbH & Co. KG | Dowel pin on a connection device |
| CN201836160U (en) * | 2010-10-29 | 2011-05-18 | 浙江联通家具配件有限公司 | Strengthened connecting part for furniture wall plates |
| CN201896826U (en) * | 2010-11-30 | 2011-07-13 | 宁波市新颍家具有限公司 | Furniture connecting component |
| CN201934441U (en) * | 2010-12-30 | 2011-08-17 | 曹蕾 | Furniture connector |
| JP2013238251A (en) * | 2012-05-11 | 2013-11-28 | Oka Kokusai Boeki Kk | Connection means for knock-down furniture |
| CN203770320U (en) * | 2014-02-28 | 2014-08-13 | 震旦（中国）有限公司 | Plate connecting device and plate type combining device |
| CN105937532A (en) * | 2016-05-17 | 2016-09-14 | 湖北工程学院 | Cam connection fastener and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108105225A (en) | 2018-06-01 |
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