CN209510844U - A kind of connection structure and the bolt applied to the connection structure - Google Patents
A kind of connection structure and the bolt applied to the connection structure Download PDFInfo
- Publication number
- CN209510844U CN209510844U CN201822213715.1U CN201822213715U CN209510844U CN 209510844 U CN209510844 U CN 209510844U CN 201822213715 U CN201822213715 U CN 201822213715U CN 209510844 U CN209510844 U CN 209510844U
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- bolt
- slot
- socket
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- rod
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- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 19
- 238000011900 installation process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Furniture Connections (AREA)
Abstract
The utility model discloses a kind of connection structure and use the bolt in the connection structure, including the component one and component two interconnected by bolt, the bolt includes bolt rod and socket, the end face of the component one is equipped with protrusion, the side that component two is connect with component one is equipped with the slot for protrusion insertion, at least in component one, wherein side is additionally provided with the placing groove for placing bolt in place on the side that component two is connect with component one, one end of the placing groove intersects connection with slot, and the through-hole passed through for bolt rod is equipped in the protrusion of component one.The utility model, completely without tool is used, can manually realize the completed assembled of furniture by fixing after the interpolation of component one and component two on furniture by bolt.
Description
Technical field
The utility model relates to connection structure for furniture, the in particular to bolt of connection structure and the application connection structure.
Background technique
With the raising of living condition, more and more household products are all selected to customize or be assembled, still, most
Completed knocked down products are inconvenient in assembling, and the Children's desks and chairs sold and used currently on the market, assembling mode all uses metal spiral shell
What silk or nail were connected and fixed, also useful buckle is bolted, and metal screws or nail is such as used, by making for a long time
With the exposed parts of metal screws or nail are easy to damage to children user.Assembly and connection side in the prior art
Formula will use tool, for example screw need spanner to go to tighten fixation, and when being screwed desk chair, due to desk and
Chair connection structure is inconvenient, cause to assemble it is inconvenient, and its to tear spelling open complicated, laborious, be unsuitable for manipulative ability
Children install.
Moreover, tables and chairs that existing tables and chairs especially children use etc. furniture, surface are typically provided with natural wooden line
If road is perhaps decorated with coloured pattern etc. and is fixed by connection structures such as screw or nails, certainly will need
The position punching of each component connection of furniture, will so destroy the integrality of furniture surface decoration, influence good appearance.
Utility model content
In order to overcome drawbacks described above, the utility model provides a kind of connection structure and inserting applied to the connection structure
Whole assembly can simply may be implemented in pin, the furniture such as tables and chairs.
The utility model is achieved through the following technical solutions:
A kind of connection structure, including the component one and component two interconnected by bolt, the end face of the component one is set
There is protrusion, the side that component two is connect with component one is equipped with the slot for protrusion insertion, connect in component two with component one
At least in component one, wherein side is additionally provided with the placing groove for placing bolt in place on side, and the bolt is restricted to place
It can move back and forth in slot and in placing groove towards protrusion, one end of the placing groove intersects connection with slot, in component one
Protrusion is equipped with the through-hole passed through for bolt.
The placing groove and slot are orthogonal, and the bolt includes bolt rod and socket, and placing groove includes first slotting
Key seat slot and bolt rod slot, the first bolt seat slot are set to one end that placing groove is connect with slot, and the first bolt seat slot is just
It is overlapped depending on projecting with the general perspective of socket, socket is to be detachably connected with the first bolt seat slot, the first bolt seat slot
Bottom width is greater than the width at the top of it, and the width of the bolt rod slot is not less than the diameter of bolt rod.
The jack being inserted into for bolt rod is equipped with relative to the position of bolt rod on the side wall of the other side of slot.
The second bolt seat slot is equipped with relative to the position of the first bolt seat slot on the side wall of the other side of slot, described the
Dismountable socket is equipped in two bolt seat slots, the general perspective of the second bolt seat slot is overlapped with the general perspective of socket,
The bottom width of the second bolt seat slot is greater than the width at the top of it, and the front end of the bolt rod is inserted into second after passing through protrusion
Socket in bolt seat slot.
A kind of bolt applied to above-mentioned connection structure, including bolt rod and socket, the bolt rod is from socket
Side passes through socket, and for the socket at least provided with one, its top width of the side projection of the socket is less than top
Other parts below.
The side projection of the socket is trapezoidal.
One end of the bolt rod is equipped with driving lever, and the diameter of driving lever is not more than the diameter of bolt rod.
For the socket from top surface to having a sliding slot, the bottom of the sliding slot is in arc-shaped, the axial line of sliding slot and is inserted
The axial line of pin rod is overlapped.
The width of rebate of the sliding slot is less than the diameter of driving lever.
The notch two sides of the sliding slot are respectively equipped with the notch that a downward projection is in arc-shaped, the notch center of circle of notch two sides
It is overlapped, the diameter of notch is equal to the diameter of driving lever.
The utility model has the beneficial effects that
Compared with prior art, the utility model can be inserted by passing through after the interpolation of component one and component two on furniture
Pin is fixed, and completely without tool is used, can manually realize the completed assembled of furniture.Bolt disclosed by the utility model
Seat, bolt rod using unified structure reduce the structure species of connecting component, that is, reduce at not, and be conducive to standard metaplasia
It produces.
It is each in production furniture without being punched on surface when the connection structure of the utility model is applied on furniture
When component, it need to only be slotted in the medial surface of component, member outer surface is printed according to the whole design of furniture
Pattern not will receive the destruction of connection structure and bolt during the installation process, ensure that the integrality of furniture surface decoration.
Shooting Technique processing can be used in the connection structure and bolt of the utility model, and the component produced is without sharp
Part, and do not needed in installation process using tools such as screwdrivers, it is voluntarily completed so being suitable for the children with manipulative ability
Whole installation process has both tempered manipulative ability, and safety coefficient is again high, has the furniture item gesture of the utility model connection structure
Market welcome must be obtained.
Detailed description of the invention
Fig. 1 is the attachment structure schematic diagram (bolt rod lockup state) of the utility model embodiment 1.
Fig. 2 is the attachment structure schematic diagram (bolt rod opening state) of the utility model embodiment 1.
Fig. 3 is the attachment structure schematic diagram (bolt rod lockup state) of the utility model embodiment 2.
Fig. 4 is the direction A-A schematic cross-sectional view in Fig. 3.
Fig. 5 is the attachment structure schematic diagram (bolt rod lockup state) of the utility model embodiment 3.
Fig. 6 is the direction B-B schematic cross-sectional view in Fig. 5.
Fig. 7 is the direction C-C schematic cross-sectional view in Fig. 5.
Fig. 8 is the direction D-D schematic cross-sectional view in Fig. 5.
Fig. 9 is 2 bolt overall structure stereoscopic schematic diagram of the utility model embodiment.
Figure 10 is 2 bolt overall structure schematic top plan view of the utility model embodiment.
Figure 11 is 2 bolt overall structure left view schematic diagram of the utility model embodiment.
Figure 12 is the utility model bolt rod stereoscopic schematic diagram.
Figure 13 is the utility model bolt rod schematic elevation view.
Figure 14 is the utility model bolt rod right side view.
Figure 15 is the utility model socket stereoscopic schematic diagram.
Figure 16 is the utility model socket schematic top plan view.
Figure 17 is the utility model socket left view schematic diagram.
Figure 18 is 3 bolt overall structure stereoscopic schematic diagram of the utility model embodiment.
Figure 19 is one structural schematic diagram of the utility model component.
Figure 20 is two structural schematic diagram of component in the utility model embodiment 1.
Figure 21 is two structural schematic diagram of component in the utility model embodiment 2.
Figure 22 is two structural schematic diagram of component in the utility model embodiment 3.
Figure 23 is the children's chairs overall structure diagram for implementing the utility model.
Figure 24 is the children's chairs structure elevational schematic view for implementing the utility model.
Figure 25 is the children's chairs back board structure schematic diagram for implementing the utility model.
Figure 26 is the children's chairs base plate structure schematic diagram for implementing the utility model.
Figure 27 is the children's chairs leg plate structure schematic diagram for implementing the utility model.
Figure 28 is the children's chairs supporting plate structure schematic diagram for implementing the utility model.
Specific embodiment
As shown in Fig. 1,3,5 and Figure 19 to Figure 22, the utility model includes the component one interconnected by bolt 300
100 and component 2 200, the end face of the component 1 is equipped with protrusion 101, the side that component 2 200 is connect with component 1
It is equipped with the slot 201 for 101 insertion of protrusion, at least in place in component on the side that component 2 200 is connect with component 1
1 wherein side be additionally provided with the placing groove 210 for placing bolt 300, the bolt 300 is restricted in placing groove 210
And can be moved back and forth in placing groove 210 towards raised 101 directions, it is equipped in the protrusion 101 of component 1 for bolt 300
The through-hole 102 passed through.
Embodiment 1
Specifically, as shown in Figure 1, bolt 300 is inserted in the slot 201 of 101 insertion part 2 200 of protrusion of component 1
Enter in through-hole 102, connects component 1 and component 2 200.Fig. 2 is then the state that bolt 300 leaves through-hole 102.This implementation
In example, bolt 300 be exactly it is stick-like, parallel with placing groove 210, the distance of the end of placing groove 210 to 101 nearest sides of protrusion is not
Less than the length of bolt 300, and the length of placing groove 210 itself is then less than the length of bolt 300, in this way, bolt 300 is limited
It will not be dropped out in placing groove 210, component two 200 part of the bolt 300 through 210 front of placing groove.
In the present embodiment, in order to reinforce bolt 300 connection stability, the phase on the side wall of the other side of slot 201
The jack 202 being inserted into for bolt 300 is equipped with for the position of bolt 300.The length of bolt 300 is greater than 210 front end of placing groove extremely
The distance of raised 101 farthest sides, after bolt 300 passes through through-hole 102, front end is inserted into jack 202, in this way, insert
The middle section of pin 300 is in through-hole 102, and both ends part is then respectively in the component 2 200 of 201 two sides of slot.So,
Component 1 is just securely connected with component 2 200.
Embodiment 2
Further, the present embodiment is improved on the basis of the technical solution of embodiment 1.
As shown in Figures 9 to 11, the bolt 300 of the utility model includes bolt rod 310 and socket 320, the bolt
Bar 310 passes through socket 320 from the side of socket 320.
As shown in Figure 12 to Figure 14, it is equipped with driving lever 311 in one end of bolt rod 310, the diameter of driving lever 311 is not more than bolt
The diameter of bar 310.The puff object 312 of a spherical shape or cydariform can be set in the top of driving lever 211, and finger is facilitated to stir.
As shown in Figure 15 to Figure 17, socket 320 is from top surface to sliding slot 321 is had, and the bottom of the sliding slot 321 is in circle
The axial line of arcuation, sliding slot 321 is overlapped with the axial line of bolt rod 310.The circular in cross-section of bolt rod 320, diameter is not
It is preferably equal greater than the diameter of sliding slot 321, bolt rod 320 can be prevented in cunning by frictional force between the two in this way
It is slided easily in slot 321.
The width of rebate of sliding slot 321 is less than the diameter of driving lever 311, since the diameter of driving lever 311 is no more than bolt rod 310
Diameter will not come out so bolt rod 310 is limited in sliding slot 321 from notch.Width of rebate is less than the diameter of driving lever 311,
Allow notch to clamp driving lever 311, bolt rod 310 is further prevented to slide easily in sliding slot 321.
It can also be respectively equipped with the notch 322 that a downward projection is in arc-shaped in the notch both sides of the edge of sliding slot 321, such as schemed
Shown in 16,322 center of circle of notch of notch two sides is overlapped, and the diameter of notch 322 is equal to the diameter of driving lever 311.
As shown in Figure 10, when bolt rod 310 is in lockup state, driving lever 311 is placed exactly in notch 322, and is lacked
Mouth 322 blocks.The end of wherein one end of notch is located at for the ease of opening or locking bolt rod 310, the position of notch 322
Portion does not have to driving lever 311 pushing too many distance in this way, facilitates operation.
Its top width of the side projection of socket 320 in the present embodiment is less than top other parts below, this is
Because socket 320 will be embedded in placing groove 210 together with bolt rod 310, in order to make socket 320 embedding
It closes in placing groove 210 without dropping out, by the big structure of top handle, just socket 320 can be limited in placing groove 210
It is interior.
Preferably, the side projection of socket 320 is trapezoidal, is also possible to round or ellipse, or be rectangle, such as
Fruit is rectangle, then needing to add part part outstanding as limiting device in two sides of the bottom makes socket 320 be entrenched in placement
In slot 210, certainly, the shape of placing groove 210 is also required to match with socket 320.
Specifically, one end of placing groove 210 intersects connection with slot 201, the placing groove 210 hangs down mutually with slot 201
Directly, placing groove 210 includes the first bolt seat slot 211 and bolt rod slot 212, and the first bolt seat slot 211 is set to placing groove 210
The one end being connect with slot 201.
The general perspective of first bolt seat slot 211 is overlapped with the general perspective of socket 320, as shown in figure 21, in this reality
It applies in example, the side projection of socket 320 is trapezoidal, so the general perspective of the first bolt seat slot 211 is also trapezoidal, first is inserted
The bottom width of key seat slot 211 is greater than the width at the top of it.
Socket 320 is to be detachably connected with the first bolt seat slot 211, and the length of socket 320 is no more than slot 201
Width, such socket 320 can be put into vertically in slot 201, then be pushed into the first bolt seat slot 211 again.
Before being pushed into the first bolt seat slot 211, need first to be inserted in socket 320 bolt rod 310, then by bolt
Bar 310 pulls back, and allows socket 320 in the front end of bolt rod 310, while socket 320 is put into slot 201, bolt
Bar 310 is also disposed in bolt rod slot 212, therefore the width of bolt rod slot 212 is not less than the diameter of bolt rod 310.
In the same manner as in Example 1, the distance of the end of bolt rod slot 212 to raised 101 nearest sides is not less than bolt rod 310
Length, i.e., the length of bolt rod slot 212 plus the first bolt seat slot 211 length be not less than bolt rod 310 length, preferably
, equal, in this way when bolt rod 310 pulls back, bolt rod 310 is exited from the through-hole 102 of protrusion 101, just can be incited somebody to action
Component 1 and 2 200 points of component are opened, conversely, bolt rod 310 is pushed forward into through-hole 102, then it is lockup state, by component one
100 and component 2 200 link together.
In the present embodiment, as shown in figure 4, as embodiment 1, for the purposes of reinforcing the stability that bolt 300 connects,
The jack 202 being inserted into for bolt rod 310 is equipped with relative to the position of bolt rod 310 on the side wall of the other side of slot 201.That
The length of bolt rod 310 is greater than the length of the first bolt seat slot 211 and the sum of the thickness of protrusion 101.
After bolt rod 310 passes through through-hole 102, front end is inserted into jack 202, the both ends part difference of bolt rod 310
In the component 2 200 and socket 320 of 201 two sides of slot.So, component 1 just with component 2 200 more firmly
Connection.
Embodiment 3
As shown in Fig. 5 to Fig. 8, on the basis of embodiment 2, relative to first on the side wall of the other side of slot 201
The position of bolt seat slot 211 is equipped with the second bolt seat slot 213, i.e., the position of jack 202 in embodiment 2, which no longer sets slotting
Hole 202, but the second bolt seat slot 213, as shown in figure 22.Other structures are as the technical solution of embodiment 2.
Interior to be equipped with dismountable socket 320 as the first bolt seat slot 211, the second bolt seat slot 213 is faced
Projection is overlapped with the general perspective of socket 320, and the bottom width of the second bolt seat slot 213 is greater than the width at the top of it,
It is also trapezoidal.
As shown in Fig. 8 and Figure 18, the front end of bolt rod 310 is just inserted into the second bolt seat slot 213 after passing through protrusion 101
Socket 320.
For first bolt seat slot 211 as the structure of the second bolt seat slot 213, the socket 320 of the inside insertion is also one
Sample.
The height of socket 320 in embodiment 2 and embodiment 3, at least socket in the first bolt seat slot 211
320 height is greater than the height of the first bolt seat slot 211, is more advantageous to and stirs driving lever 311.In order to realize standardization, and
Simplify design of part, keeps socket 320 general, the structure of the structure of the second bolt seat slot 213 and the first bolt seat slot 211
Equally, the socket 320 of the two insertion is also the same, can be general mutually, in this way in practical application, be not necessarily to manufacture two kinds and
Above socket 320 and bolt seat slot, socket 320 and bolt rod 310 can be produced in batches, and manufacturing cost substantially reduces.
Embodiment 1 to 3 is not independent product technology scheme, and the technical solution of three embodiments can be respectively combined into new
Product, be preferred so that cost when practical application is minimum.
As shown in figure 23, by taking practical application is in children's chairs as an example, children's chairs include backboard 410, seat board 420, seat board 420
The leg plate 430 on both sides, and the support plate 440 being connected between leg plate 430.
As shown in figs. 23 and 24, two leg plates 430 are placed side by side, as shown in figure 27, in the two sides of 430 medial surface of leg plate point
Not She You slot 201, the two sides of each slot 201 are respectively equipped with the first bolt seat slot 211, bolt rod slot 212 and the second bolt
Seat slot 213.The medial surface of two leg plates 430 is opposite, is equipped with protrusion 101, protrusion at the top of phase the same side of two leg plates 430
101 middle part is equipped with through-hole 102.
As shown in figure 26, the bottom surface two sides of the seat board 420 are respectively equipped with slot 201, likewise, in each slot
201 two sides are respectively equipped with the first bolt seat slot 211, bolt rod slot 212 and the second bolt seat slot 213.420 bottom surface of seat board
The protrusion 101 of slot 201 and leg plate 430 corresponds, and the protrusion 101 of leg plate 430 is inserted into respectively in the slot 201 of seat board 420.
As shown in figure 25, it is respectively equipped with protrusion 101 in the both sides of the edge of the lower half portion of backboard 410,101 middle part of protrusion is set
There is through-hole 102, the protrusion 101 of 410 both sides of the edge of backboard is just a pair of with a pair of of slot 201 1 of two 430 rear sides of leg plate respectively
It should and mutually plug.
Such as Figure 28, it is respectively equipped with protrusion 101 in the edges at two ends of support plate 440,101 middle part of protrusion sets through-hole, support plate
440 and backboard 410 be oppositely disposed between the front side of leg plate 430, the protrusion 101 of the both sides of the edge of support plate 440 and two legs
A pair of of slot 201 of 430 front side of plate is corresponded and is mutually plugged.
As shown in figure 24, after 430 assembly of leg plate on backboard 410, seat board 420,420 both sides of seat board is good, can pass through
It is just pre- mounted in the first bolt seat slot 211, socket 320, the bolt of bolt rod slot 212 and the second bolt seat slot 213 before assembly
Bar 310 carries out last connection.Socket 320 and bolt rod 310 in first bolt seat slot 211 and bolt rod 212 are being put into
Before, first bolt rod 310 can be inserted into socket 320, facilitates installation.
After installing, the top braces of leg plate 430 seat board 420, the lower half portion of backboard 410 can also be used as leg
Support is used, and is formed firm children's chairs by 410 lower half of backboard and the connection of support plate 440 between two leg plates 430 and is supported knot
Structure, so that the firmness of the structure of entire children's chairs is no different with common children's chairs, but installation process is than in the prior art
Screw connection wants much more convenient, and does not need the tools such as screwdriver, and the children with manipulative ability can also carry out installation work
Industry, danger coefficient is much smaller than the danger coefficient in the installation process of the children's chairs of the prior art in installation process.
Claims (10)
1. a kind of connection structure, including the component one and component two interconnected by bolt, the end face of the component one is equipped with
Protrusion, the side that component two is connect with component one is equipped with the slot for protrusion insertion, in the side that component two is connect with component one
At least in component one, wherein side is additionally provided with the placing groove for placing bolt in place on face, and the bolt is restricted to placing groove
It is interior and can in placing groove towards protrusion move back and forth, one end of the placing groove intersects connection with slot, in the convex of component one
Act the through-hole for being equipped with and passing through for bolt.
2. a kind of connection structure according to claim 1, it is characterised in that: the placing groove and slot are orthogonal, institute
Stating bolt includes bolt rod and socket, and placing groove includes the first bolt seat slot and bolt rod slot, and the first bolt seat slot is set
General perspective in one end that placing groove is connect with slot, the first bolt seat slot is overlapped with the general perspective of socket, socket
It is to be detachably connected with the first bolt seat slot, the bottom width of the first bolt seat slot is greater than the width at the top of it, the bolt rod
The width of slot is not less than the diameter of bolt rod.
3. a kind of connection structure according to claim 1 or 2, it is characterised in that: the phase on the side wall of the other side of slot
The jack being inserted into for bolt rod is equipped with for the position of bolt rod.
4. a kind of connection structure according to claim 2, it is characterised in that: on the side wall of the other side of slot relative to
The position of first bolt seat slot is equipped with the second bolt seat slot, is equipped with dismountable socket in the second bolt seat slot, and second
The general perspective of bolt seat slot is overlapped with the general perspective of socket, and the bottom width of the second bolt seat slot is greater than its top
Width, the socket in the second bolt seat slot is inserted into after passing through protrusion in the front end of the bolt rod.
5. a kind of bolt applied to the described in any item connection structures of Claims 1-4, including bolt rod and socket, institute
It states bolt rod and passes through socket from the side of socket, the socket is at least provided with one, the side projection of the socket
Its top width is less than top other parts below.
6. a kind of bolt according to claim 5, it is characterised in that: the side projection of the socket is trapezoidal.
7. a kind of bolt according to claim 5 or 6, it is characterised in that: one end of the bolt rod is equipped with driving lever, driving lever
Diameter be not more than bolt rod diameter.
8. a kind of bolt according to claim 7, it is characterised in that: the socket is from top surface to having sliding slot, institute
The bottom of sliding slot is stated in arc-shaped, the axial line of sliding slot is overlapped with the axial line of bolt rod.
9. a kind of bolt according to claim 8, it is characterised in that: the width of rebate of the sliding slot is less than the straight of driving lever
Diameter.
10. a kind of bolt according to claim 9, it is characterised in that: the notch two sides of the sliding slot are respectively equipped with one and bow
Depending on projecting the notch in arc-shaped, the notch center of circle of notch two sides is overlapped, and the diameter of notch is equal to the diameter of driving lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213715.1U CN209510844U (en) | 2018-12-27 | 2018-12-27 | A kind of connection structure and the bolt applied to the connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213715.1U CN209510844U (en) | 2018-12-27 | 2018-12-27 | A kind of connection structure and the bolt applied to the connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209510844U true CN209510844U (en) | 2019-10-18 |
Family
ID=68197528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822213715.1U Withdrawn - After Issue CN209510844U (en) | 2018-12-27 | 2018-12-27 | A kind of connection structure and the bolt applied to the connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209510844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441930A (en) * | 2018-12-27 | 2019-03-08 | 沭阳县云普工贸有限公司 | A kind of connection structure and the bolt applied to the connection structure |
-
2018
- 2018-12-27 CN CN201822213715.1U patent/CN209510844U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441930A (en) * | 2018-12-27 | 2019-03-08 | 沭阳县云普工贸有限公司 | A kind of connection structure and the bolt applied to the connection structure |
| CN109441930B (en) * | 2018-12-27 | 2024-03-01 | 沭阳县云普工贸有限公司 | Connection structure and be applied to this connection structure's bolt |
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Granted publication date: 20191018 Effective date of abandoning: 20240301 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191018 Effective date of abandoning: 20240301 |