CN207115296U - Board fastening structure and board erecting device - Google Patents
Board fastening structure and board erecting device Download PDFInfo
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- CN207115296U CN207115296U CN201721065102.7U CN201721065102U CN207115296U CN 207115296 U CN207115296 U CN 207115296U CN 201721065102 U CN201721065102 U CN 201721065102U CN 207115296 U CN207115296 U CN 207115296U
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- board
- block
- fixed block
- supporting plate
- sliding block
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Abstract
A kind of board fastening structure and board erecting device are the utility model is related to, the board fastening structure includes supporting plate, fixed block, screw mandrel, drive block and the first sliding block.The sidepiece of supporting plate is used to be inserted into the chute of installing plate.Fixed block is fixedly installed on the sidepiece of the supporting plate, and the first end face of fixed block is the first inclined-plane being obliquely installed relative to supporting plate, and fixed block is provided with the first through hole that fixed block second end face is extended to from fixed block first end face.Screw mandrel is movably installed in the first through hole of fixed block, and the first end of screw mandrel is connected with drive block.Drive block is located at outside the first through hole and contradicted with fixed block second end face and coordinated.Second end of screw mandrel is installed in the screwed hole of the first sliding block.First sliding block has the second inclined-plane being adapted with the first inclined-plane.Above-mentioned board fastening structure, the chute wall of installing plate can be tightly contradicted, so as to just fix supporting plate on a mounting board, that is, the installation for realizing board is fixed.
Description
Technical field
The installation technique for fixing field of board is the utility model is related to, more particularly to a kind of board fastening structure and board
Erecting device.
Background technology
After the lock pin of board is inserted into the slot of host apparatus, just communications can be carried out with host apparatus.However, plate
Card is fixed in the slot of host apparatus only by lock pin inserting, after such long-time use, because board material deforms, and plate
Card easily shakes on host apparatus.
The content of the invention
Based on this, it is necessary to the defects of overcoming prior art, there is provided a kind of board fastening structure and board erecting device, it
It can be easy to board carrying out installation fixation.
Its technical scheme is as follows：A kind of board fastening structure, including：Supporting plate, the supporting plate are used to install board, the support
The sidepiece of plate is used to be inserted into the chute of installing plate；Fixed block, the fixed block are fixedly installed on the sidepiece of the supporting plate, institute
The first end face for stating fixed block is the first inclined-plane being obliquely installed relative to the supporting plate, and the fixed block is provided with from the fixation
Block first end face extends to the first through hole of the fixed block second end face；Screw mandrel, drive block and the first sliding block, the screw mandrel can
Actively it is installed in the first through hole of the fixed block, the first end of the screw mandrel is connected with the drive block, the driving
Block be located at outside the first through hole and with the fixed block second end face contradict coordinate, first sliding block be provided with it is described
The screwed hole that screw mandrel is engaged, the second end of the screw mandrel are installed in the screwed hole of first sliding block, first sliding block
With the second inclined-plane being adapted with first inclined-plane, the second inclined-plane of first sliding block and the first of the fixed block oblique
Face is in contact；Wherein, the fixed block and first sliding block are used to be inserted into the chute, and first sliding block is used for
It is in contact with the side wall of the chute.
A kind of board erecting device, including described board fastening structure, in addition to for being fixedly installed on host apparatus
On installing plate, the installing plate is provided with chute, and the sidepiece of the supporting plate, the fixed block and first sliding block are inserted into institute
In the chute for stating installing plate.
Board, first can be installed on supporting plate by above-mentioned board fastening structure and board erecting device, board insert to
While in the slot of host apparatus, supporting plate is inserted into the chute of installing plate.Rotated by drive block drive screw, due to
The first sliding block on screw mandrel can not rotate, so that the first sliding block moves towards fixed block.First the second inclined-plane of sliding block along
After the movement of the inclined-plane of fixed block first, chute wall can be tightly contradicted, so as to just fix supporting plate on a mounting board, i.e.,
The installation for realizing board is fixed.
In one of the embodiments, described board fastening structure also includes being arranged on the drive block and the fixation
The second sliding block between block, second sliding block are provided with the second through hole for being set with the screw mandrel, and second sliding block is movably
It is installed on the screw mandrel, the drive block and second sliding block are inconsistent, and the fixed block second end face is relative to institute
The 3rd inclined-plane that supporting plate is obliquely installed is stated, second sliding block has the 4th inclined-plane being adapted with the 3rd inclined-plane, described
4th inclined-plane of the second sliding block is in contact with the 3rd inclined-plane of the fixed block.In this way, when drive block drive screw rotates, the
One sliding block contradicts chute wall after being moved along the first inclined-plane, the second sliding block can also move conflict along the 3rd inclined-plane and slide
Groove sidewall, it can so strengthen the fixed effect of supporting plate on a mounting board, so that plate stability is stronger.
In one of the embodiments, described board fastening structure also includes the elasticity being arranged in the first through hole
Part, described elastic component one end contradicts with the screw mandrel to be coordinated, and the elastic component other end and the first through hole madial wall are remote
The position of the supporting plate, which contradicts, to be coordinated, when first sliding block slides along first inclined-plane contradicts the chute wall,
The elastic component is in compressive state.In this way, after drive block drive screw rotates backward, the first sliding block will be carried on the back along the first inclined-plane
To fixed Block direction movement, now the elastic component of compressive state also synchronous reset and promotes screw mandrel to reset.Wherein, in order to preferably
Realize that screw mandrel resets operation, two or more elastic component can be set in first through hole.
In one of the embodiments, the supporting plate is provided with two or more projection for installing the side of board, described
Projection is used to make have interval between the board and the pallet side.In this way, after board is installed up on the projection of supporting plate, it is convex
Block causes there is interval between board and pallet side.The interval can accommodate the electronic component on board, so be avoided that electricity
Subcomponent contacts pallet side and damaged by injured.
In one of the embodiments, the projection is provided with the first mounting hole, and the projection is used to pass through by fastener
Second mounting hole of first mounting hole and the board is fixedly connected with the board.
In one of the embodiments, the fixed block, the screw mandrel, the drive block and first sliding block are two
It is individual；One of them described fixed block, the screw mandrel, the drive block and first sliding block are installed in wherein the one of the supporting plate
Individual sidepiece, another described fixed block, the screw mandrel, the drive block and first sliding block are installed in the another of the supporting plate
Individual sidepiece.In this way, after a wherein sidepiece for supporting plate is inserted into the chute of one of installing plate, can by one of them
One sliding block is contradicted to coordinate with chute wall and fixed；After another sidepiece of supporting plate is inserted into the chute of another installing plate, energy
Enough contradicting to coordinate by another first sliding block and chute wall and fix, the both sides of such supporting plate are mounted plate and fixed, Gu
Determine that effect is preferable, it is relatively stable so as to the fixed effect of board.
In one of the embodiments, one end of the supporting plate is also associated with handle.In this way, when needing board from main frame
When the slot of device is extracted, by pull handle, it can be easy to pull out supporting plate from the chute of installing plate, consequently facilitating by board
Extracted from the slot of host apparatus.
In one of the embodiments, the installing plate is two, and two installing plates are oppositely arranged, the installing plate
Chute described in two or more is arranged at intervals with side by side, the cunning of the chute of one of them installing plate and another installing plate
Groove relative set one by one.In this way, the installing plate that a wherein sidepiece for the supporting plate for installing board is disposed therein
In chute, it is arranged at for installing the other side of supporting plate of board in the chute of another installing plate, the both sides of such supporting plate
It is mounted plate to fix, fixed effect is preferable, relatively stable so as to the fixed effect of board.Further, since installing plate
On chute be two or more, can so realize that the installation of more than two boards is fixed.
In one of the embodiments, the supporting plate, the fixed block and the installing plate are heat sink.In this way, plate
Caused heat can be conducted to installing plate by supporting plate, fixed block during card work, and is outwardly spread by installing plate.
Brief description of the drawings
Fig. 1 is the structural representation one of the board fastening structure described in the utility model embodiment；
Fig. 2 is the structural representation two of the board fastening structure described in the utility model embodiment；
Fig. 3 is the structural representation three of the board fastening structure described in the utility model embodiment；
Fig. 4 is that the board fastening structure described in the utility model embodiment is fitted into the schematic diagram in the chute of installing plate；
Fig. 5 is that the board fastening structure described in the utility model embodiment is equipped with board and is inserted into the chute of installing plate
Schematic diagram；
Fig. 6 is fixed block, screw mandrel, elastic component and sliding shoe in board fastening structure described in the utility model embodiment
Decomposing schematic representation；
Fig. 7 is fixed block, screw mandrel, elastic component and sliding shoe group in the board fastening structure described in the utility model embodiment
Side view after dress；
Fig. 8 is sectional views of the Fig. 7 along the screw mandrel axial direction；
Fig. 9 is the structural representation of the handle described in the utility model embodiment；
Figure 10 is the schematic diagram of the handle and fixed mount described in the utility model embodiment.
Reference：
10th, supporting plate, 20, fixed block, the 21, first inclined-plane, the 22, the 3rd inclined-plane, 23, first through hole, 30, screw mandrel, 40, driving
Block, the 50, first sliding block, the 51, second inclined-plane, 60, board, 61, projection, the 70, second sliding block, the 71, second through hole, the 72, the 4th is oblique
Face, 80, elastic component, 90, handle, 91, base portion, 92, contact part, 93, fixed mount, 94, roller, 100, installing plate, 101, chute.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The embodiment of utility model is described in detail.Elaborate many details in order to abundant in the following description
Understand the utility model.But the utility model can be to be much different from other manner described here to implement, this area
Technical staff can do similar improvement in the case of without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
At least one this feature can be expressed or be implicitly included to the feature of " first ", " second ".In description of the present utility model,
" multiple " are meant that at least two, such as two, three etc., unless otherwise specifically defined.
In description of the present utility model, it is to be understood that when an element is considered as " connection " another element,
Another element can be directly to or may be simultaneously present intermediary element.On the contrary, when element for be referred to as " direct " and
During another element connection, in the absence of intermediary element.
As shown in Figures 1 to 5, a kind of board fastening structure, including supporting plate 10, fixed block 20, screw mandrel 30, drive block 40 and
First sliding block 50.The supporting plate 10 is used to install board 60, and the sidepiece of the supporting plate 10 is used for the chute for being inserted into installing plate 100
In 101.The fixed block 20 is fixedly installed on the sidepiece of the supporting plate 10, and the first end face of the fixed block 20 is relative to institute
The first inclined-plane 21 that supporting plate 10 is obliquely installed is stated, the fixed block 20 is described provided with being extended to from the first end face of fixed block 20
The first through hole 23 of the second end face of fixed block 20.The screw mandrel 30 is movably installed in the first through hole 23 of the fixed block 20
In, the first end of the screw mandrel 30 is connected with the drive block 40.The drive block 40 be located at outside the first through hole 23 and
Contradict and coordinate with the second end face of fixed block 20.First sliding block 50 is provided with the screwed hole being engaged with the screw mandrel 30,
Second end of the screw mandrel 30 is installed in the screwed hole of first sliding block 50.First sliding block 50 has and described first
The second adaptable inclined-plane 51 of inclined-plane 21, first inclined-plane 21 on the second inclined-plane 51 and the fixed block 20 of first sliding block 50
It is in contact.Wherein, the fixed block 20 and first sliding block 50 are used to be inserted into the chute 101, and described first slides
Block 50 is used to be in contact with the side wall of the chute 101.
Above-mentioned board fastening structure, first board 60 can be installed on supporting plate 10, board 60 is inserted to host apparatus
Slot in while, supporting plate 10 is inserted into the chute 101 of installing plate 100.Rotated by the drive screw 30 of drive block 40,
Because the first sliding block 50 on screw mandrel 30 can not rotate, so that the first sliding block 50 moves towards fixed block 20.First sliding block
After 50 second inclined-planes 51 move along the inclined-plane 21 of fixed block 20 first, the side wall of chute 101 can be tightly contradicted, so as to just can
Supporting plate 10 is fixed on installing plate 100, that is, the installation for realizing board 60 is fixed.
In the present embodiment, referring to Fig. 6, described board fastening structure also include be arranged on the drive block 40 with it is described
The second sliding block 70 between fixed block 20.Second sliding block 70 is provided with the second through hole 71 for being set with the screw mandrel 30, and described the
Two sliding blocks 70 are movably installed on the screw mandrel 30.The drive block 40 and second sliding block 70 are inconsistent.It is described solid
It is the 3rd inclined-plane 22 being obliquely installed relative to the supporting plate 10 to determine the second end face of block 20.Second sliding block 70 have with it is described
The 4th adaptable inclined-plane 72 of 3rd inclined-plane 22, the 4th inclined-plane 72 of second sliding block 70 and the 3rd of the fixed block 20 the oblique
Face 22 is in contact.In this way, when the drive screw 30 of drive block 40 rotates, after the first sliding block 50 can move along the first inclined-plane 21
The side wall of chute 101 is contradicted, the second sliding block 70 can also move along the 3rd inclined-plane 22 contradicts the side wall of chute 101, can so increase
Strong fixed effect of the supporting plate 10 on installing plate 100, so that plate stability is stronger.
In addition, referring to Fig. 6 to Fig. 8, described board fastening structure also includes being arranged in the first through hole 23
Elastic component 80.Described one end of elastic component 80 contradicts with the screw mandrel 30 to be coordinated, and the other end of elastic component 80 is logical with described first
Position of the madial wall of hole 23 away from the supporting plate 10, which contradicts, to be coordinated.When first sliding block 50 slides along first inclined-plane 21
When contradicting 101 side wall of chute, the elastic component 80 is in compressive state.In this way, the drive screw 30 of drive block 40 reversely turns
After dynamic, the first sliding block 50 will move along the first inclined-plane 21 backwards to the direction of fixed block 20, now the elastic component 80 of compressive state
Synchronous reset simultaneously promotes screw mandrel 30 to reset.Wherein, can be in first through hole 23 in order to preferably realize that screw mandrel 30 resets operation
Two or more elastic component 80 is set.Specifically, elastic component 80 can be spring or the flexure strip of bending.When elastic component 80 is bending
Flexure strip when, then flexure strip both ends pin is considered as wherein one end, and the outwardly middle part of flexure strip is considered as the other end.
In addition, referring again to Fig. 1 or Fig. 3 or Fig. 4, the supporting plate 10 be used to installing board 60 side be provided with two with
Upper protruding block 61.The projection 61 is used to make have interval between board 60 and the supporting plate 10 side.In this way, board 60 fills
If after on to the projection 61 of supporting plate 10, projection 61 causes there is interval between board 60 and the side of supporting plate 10.The interval can hold
The electronic component received on board 60, so it is avoided that the electronic component contact side of supporting plate 10 and is damaged by injured.Specifically, it is described
Projection 61 is provided with the first mounting hole, and the projection 61 is used for by fastener through first mounting hole and the board 60
Second mounting hole is fixedly connected with the board 60.
In the present embodiment, any one width of Fig. 1 to Fig. 5, the fixed block 20, the screw mandrel 30, the drive block are referred to
40 and first sliding block 50 be two.One of them described fixed block 20, the screw mandrel 30, the drive block 40 and described
First sliding block 50 is installed in one of sidepiece of the supporting plate 10, another fixed block 20, the screw mandrel 30, described drive
Motion block 40 and first sliding block 50 are installed in another sidepiece of the supporting plate 10.In this way, a wherein sidepiece for supporting plate 10 is inserted
After being filled in the chute 101 of one of installing plate 100, it can be supported by one of them first sliding block 50 with the side wall of chute 101
Touch to coordinate and fix., can be by another after another sidepiece of supporting plate 10 is inserted into the chute 101 of another installing plate 100
Individual first sliding block 50 is contradicted to coordinate with the side wall of chute 101 and fixed, and the both sides of such supporting plate 10 are mounted plate 100 and fixed, Gu
Determine that effect is preferable, the fixed effect so as to board 60 is relatively stable.
In addition, also referring to Fig. 9 and Figure 10, one end of the supporting plate 10 is also associated with handle 90.In this way, when need by
Board 60, by pull handle 90, can be easy to the chute from installing plate 100 by supporting plate 10 from during the slot extraction of host apparatus
Pulled out in 101, consequently facilitating board 60 is extracted from the slot of host apparatus.Specifically, the one end of handle 90 has base portion 91
With contact part 92.Base portion 91 is rotatably arranged on supporting plate 10, and contact part 92 is used to contradict with the end face of installing plate 100 and coordinated.
It is fulcrum with base portion 91, swing handle 90, contact part 92 is acted on the end face of installing plate 100, can be easy to so that supporting plate 10 exists
Loosen, and then smoothly can extract supporting plate 10 in chute 101.More specifically, supporting plate 10 is provided with fixed mount 93, base portion 91 can turn
It is installed in dynamicly on fixed mount 93.The local pressure of supporting plate 10 can so be reduced, avoid supporting plate 10 due to drawing energetically and by
Damage.In addition, when contact part 92 contacts 100 end face of installing plate, pass through roller rotatably arranged with there is roller 94 on contact part 92
94 with the end contact of installing plate 100, in this way, during pulling out supporting plate 10 outward by swing handle 90, roller 94 can reduce
The end face stress of installing plate 100, and in the rotation process of handle 90, roller 94 rotates, and will not damage the end face area of installing plate 100.
Referring again to Fig. 4 and Fig. 5, a kind of board erecting device, including described board fastening structure, in addition to for solid
Surely the installing plate 100 being arranged on host apparatus.The installing plate 100 is provided with chute 101, the sidepiece of the supporting plate 10, described
Fixed block 20 and first sliding block 50 are inserted into the chute 101 of the installing plate 100.Above-mentioned board erecting device, by
In including board fastening structure, its technique effect is identical with the technique effect of board erecting device, herein without repeating.
Further, the installing plate 100 is two, and two installing plates 100 are oppositely arranged, the installing plate 100
Be arranged at intervals with chute 101 described in two or more side by side, the chute 101 of one of them installing plate 100 with another described in
The chute 101 of installing plate 100 relative set one by one.In this way, a wherein sidepiece for the supporting plate 10 for installing board 60 is set
In the chute 101 of one of installing plate 100, another is arranged at for installing the other side of supporting plate 10 of board 60
In the chute 101 of installing plate 100, the both sides of such supporting plate 10 are mounted plate 100 and fixed, and fixed effect is preferable, so as to
The fixed effect of enough boards 60 is relatively stable.Further, since the chute 101 on installing plate 100 is two or more, so can be real
The installation of existing more than two boards 60 is fixed.
Further, the supporting plate 10, the fixed block 20 and the installing plate 100 are heat sink.In this way, board 60
Caused heat can be conducted to installing plate 100 by supporting plate 10, fixed block 20 during work, and by installing plate 100 outwardly
Diffusion.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
- A kind of 1. board fastening structure, it is characterised in that including：Supporting plate, the supporting plate are used to install board, and the sidepiece of the supporting plate is used to be inserted into the chute of installing plate；Fixed block, the fixed block are fixedly installed on the sidepiece of the supporting plate, and the first end face of the fixed block is relative to institute State the first inclined-plane that supporting plate is obliquely installed, the fixed block is provided with from the fixed block first end face and extends to the fixed block the The first through hole of biend；Screw mandrel, drive block and the first sliding block, the screw mandrel are movably installed in the first through hole of the fixed block, the silk The first end of bar is connected with the drive block, the drive block be located at outside the first through hole and with the fixed block second End face, which contradicts, to be coordinated, and first sliding block is provided with the screwed hole being engaged with the screw mandrel, and the second end of the screw mandrel is installed in In the screwed hole of first sliding block, first sliding block has the second inclined-plane being adapted with first inclined-plane, and described the Second inclined-plane of one sliding block is in contact with the first inclined-plane of the fixed block；Wherein, the fixed block and first sliding block are used to be inserted into the chute, and first sliding block is used for and institute The side wall for stating chute is in contact.
- 2. board fastening structure according to claim 1, it is characterised in that also include be arranged on the drive block with it is described The second sliding block between fixed block, second sliding block are provided with the second through hole for being set with the screw mandrel, and second sliding block is removable It is installed in dynamicly on the screw mandrel, the drive block and second sliding block are inconsistent, and the fixed block second end face is relative In the 3rd inclined-plane that the supporting plate is obliquely installed, second sliding block has the 4th inclined-plane being adapted with the 3rd inclined-plane, 4th inclined-plane of second sliding block is in contact with the 3rd inclined-plane of the fixed block.
- 3. board fastening structure according to claim 1, it is characterised in that also include being arranged in the first through hole Elastic component, described elastic component one end contradicts with the screw mandrel to be coordinated, the elastic component other end and the first through hole madial wall Position away from the supporting plate, which contradicts, to be coordinated, and the chute wall is contradicted when first sliding block slides along first inclined-plane When, the elastic component is in compressive state.
- 4. board fastening structure according to claim 1, it is characterised in that the supporting plate is used for the side for installing board Provided with two or more projection, the projection is used to make have interval between the board and the pallet side.
- 5. board fastening structure according to claim 4, it is characterised in that the projection is provided with the first mounting hole, described Projection is used to be fixedly connected with the board by the second mounting hole of fastener through first mounting hole and the board.
- 6. board fastening structure according to claim 1, it is characterised in that the fixed block, the screw mandrel, the driving Block and first sliding block are two；One of them described fixed block, the screw mandrel, the drive block and first sliding block One of sidepiece of the supporting plate is installed in, another described fixed block, the screw mandrel, the drive block and described first are slided Packaged another sidepiece for being located at the supporting plate.
- 7. board fastening structure according to claim 1, it is characterised in that one end of the supporting plate is also associated with handle.
- A kind of 8. board erecting device, it is characterised in that including the board fastening structure as described in any one of claim 1 to 7, Also include being used for being fixedly installed on installing plate on host apparatus, the installing plate is provided with chute, the sidepiece of the supporting plate, described Fixed block and first sliding block are inserted into the chute of the installing plate.
- 9. board erecting device according to claim 8, it is characterised in that the installing plate is two, two peaces Loading board is oppositely arranged, and the installing plate is arranged at intervals with chute described in two or more side by side, the cunning of one of them installing plate The chute of groove and another installing plate relative set one by one.
- 10. board erecting device according to claim 8, it is characterised in that the supporting plate, the fixed block and the peace Loading board is heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721065102.7U CN207115296U (en) | 2017-08-23 | 2017-08-23 | Board fastening structure and board erecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721065102.7U CN207115296U (en) | 2017-08-23 | 2017-08-23 | Board fastening structure and board erecting device |
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| Publication Number | Publication Date |
|---|---|
| CN207115296U true CN207115296U (en) | 2018-03-16 |
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ID=61577331
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721065102.7U Active CN207115296U (en) | 2017-08-23 | 2017-08-23 | Board fastening structure and board erecting device |
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| CN (1) | CN207115296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107357381A (en) * | 2017-08-23 | 2017-11-17 | 广州海格通信集团股份有限公司 | Board fastening structure and board erecting device |
-
2017
- 2017-08-23 CN CN201721065102.7U patent/CN207115296U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107357381A (en) * | 2017-08-23 | 2017-11-17 | 广州海格通信集团股份有限公司 | Board fastening structure and board erecting device |
| CN107357381B (en) * | 2017-08-23 | 2023-08-01 | 广州海格通信集团股份有限公司 | Board fastening structure and board installation device |
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