CN208138334U - A kind of pivot structure - Google Patents
A kind of pivot structure Download PDFInfo
- Publication number
- CN208138334U CN208138334U CN201820463347.3U CN201820463347U CN208138334U CN 208138334 U CN208138334 U CN 208138334U CN 201820463347 U CN201820463347 U CN 201820463347U CN 208138334 U CN208138334 U CN 208138334U
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- magnet
- ejector pin
- regulating switch
- hole
- connecting shaft
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Abstract
The utility model discloses a kind of pivot structures, including connecting rod and regulating switch, one end of connecting rod is fixedly connected with connecting shaft, adjusting bearing is arranged in connecting shaft, it adjusts and offers connecting shaft hole on bearing, offer knock hole in connecting shaft, it is movable in knock hole to be installed with ejector pin, it is provided on the hole wall of connecting shaft hole and the matched locking slot of the shape of ejector pin.One end face of connection axis connection connecting rod offers switch limit hole, and the first end interval of regulating switch is provided with sealed magnet and unlock magnet, and ejector pin is provided with ejector pin magnet in face of one end of regulating switch；Magnet homopolar-repulsion, heteropolar attracting principle is utilized, while matching the effect for closing ejector pin and locking slot, so that single direction rotation can only be carried out relative to connecting rod by adjusting bearing when pivot structure is in single direction rotation state：When pivot structure is in bidirectional rotation state, limitation of the bearings relative to the rotation direction of connecting rod is exchanged in releasing, i.e. adjusting bearing being capable of Double-directional rotary relative to connecting rod.
Description
Technical field
The utility model relates to field of mechanical technique more particularly to a kind of pivot structures.
Background technique
Chinese invention patent 201210225933.1 discloses a kind of unidirectional rotation joint fork, the connection for shaft end；Including
Section fork main body, one end of the section fork main body are section fork, and the other end of the section fork main body is spline mounting hole, the spline
Groove is uniformly provided on mounting hole, the groove is the groove that unidirectional radius of curvature is gradually increased；
Splined connection, one end of the splined connection are inserted into the spline mounting hole, which is provided with and institute
State the unidirectional block that spline mounting hole unidirectionally abuts, the bottom of the unidirectional block is provided with spring, the splined connection it is another
End is provided with Quick-connection pin.
The unidirectional rotation joint fork is only able to achieve the one-directional rotation toward a direction, and cannot achieve and turn toward opposite direction
It is dynamic, therefore can be only used in when use on the fixed device rotated toward a direction, so that the device of complicated movement can not be adapted to.
Therefore, need it is a kind of not only can single direction rotation but also can be with the pivot structure of bidirectional rotation.
Utility model content
The purpose of this utility model is to provide a kind of pivot structures, to solve problem above.
For this purpose, the utility model uses following technical scheme：
A kind of pivot structure, including connecting rod, one end of the connecting rod are fixedly connected with connecting shaft, are arranged in the connecting shaft
There is adjusting bearing；The connecting shaft hole for being socketed the connecting shaft, the axis side of the connecting shaft are offered on the adjusting bearing
Knock hole is offered on face；It is movable in the knock hole to be installed with ejector pin；It is provided on the hole wall of the connecting shaft hole and institute
State the matched locking slot of shape of ejector pin；
The pivot structure further includes regulating switch；One end face of connecting rod described in the connection axis connection offers switch limit
Position hole, the knock hole are connected to the switch limit hole；The regulating switch axially penetrates through the connection along the connecting shaft
Bar, and protrude into the switch limit hole；The first end interval of the regulating switch is provided with sealed magnet and unlock magnet；
The ejector pin is provided with ejector pin magnet in face of one end of regulating switch；
By rotating the regulating switch, make knock hole described in the unlock magnet face, the unlock magnet and described
There is a natural attraction between the sexes for the ejector pin magnet of ejector pin, and the ejector pin is sucked from locking slot, at this point, the rotation direction for adjusting bearing is unrestricted
System；By rotating the regulating switch, make knock hole described in the sealed magnet face, the sealed magnet and the ejector pin
Identical charges repel each other for ejector pin magnet, and the ejector pin is headed into the locking slot by repulsion, to limit the rotation for adjusting bearing.
Optionally, the locking slot includes a guiding cell wall；The ejector pin is provided with far from one end of the regulating switch
One wedge angle, the wedge angle include the ejector pin guide surface to match with the guiding cell wall；
When the ejector pin is headed into the locking slot by repulsion, the ejector pin guide surface is adjacent to the guiding cell wall, described
Adjusting bearing can only rotate towards first direction.
Optionally, the quantity of the knock hole is two, two one ejector pins of knock hole；
The quantity of the locking slot is positive even number, and is uniformly distributed on the hole wall of the connecting shaft hole；
The quantity of the sealed magnet and the quantity of the unlock magnet are two, and two sealed magnet are opposite
Symmetrical in the regulating switch, two unlock magnet are symmetrical relative to the regulating switch.
Optionally, the end of the connecting rod offers the switch mounting hole for installing the regulating switch；The switch
Mounting hole is connected to the switch limit hole；
It is raised on the cylinder of the second end of the regulating switch to be provided with limited block；On the hole wall of the switch mounting hole
Being provided with can surround described with the matched limiting slot of the shape of the limited block, the limited block under the limit of the limiting slot
The axial rotation of regulating switch.
Optionally, the limiting slot is offered far from a cell wall of the connecting shaft, is through to the separate institute of the connecting rod
State the mounting groove on a surface of connecting shaft.
Optionally, adjusting boss is provided on the end face of the second end of the regulating switch.
Optionally, regulating tank is provided on the end face of the second end of the regulating switch.
Optionally, the regulating switch is cylindrical；The sealed magnet and the unlock magnet are set to the adjusting
On the cylinder of the first end of switch.
Optionally, the polarity of the described one end of sealed magnet far from regulating switch and unlock magnet far from regulating switch one
The polarity at end on the contrary, the one end of polarity and sealed magnet far from regulating switch of the one end of ejector pin magnet towards regulating switch pole
Property is identical；
It when unlocking magnet face knock hole, unlocks magnet and ejector pin is attracting, ejector pin is made to be detached from locking slot, at this point, adjusting
The rotation direction of bearing is unrestricted；When sealed magnet face knock hole, sealed magnet and ejector pin repel each other, and ejector pin are headed into sealed
In slot, adjusting bearing can only one-directionally rotate relative to connecting rod.
Optionally, each side of the sealed magnet and the unlock magnet is enclosed with manganese steel piece.
Compared with prior art, the utility model embodiment has the advantages that：
Magnet homopolar-repulsion, heteropolar attracting principle is utilized, while matching the effect for closing ejector pin and locking slot, so that working as
Bearing is adjusted when pivot structure is in single direction rotation state can only carry out single direction rotation relative to connecting rod：When pivot structure is in double
When to rotation status, limitation of the bearings relative to the rotation direction of connecting rod is exchanged in releasing, i.e. adjusting bearing is relative to connecting rod energy
Enough Double-directional rotaries.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structural schematic diagram of pivot structure provided by the embodiment of the utility model；
Fig. 2 is a kind of another structural schematic diagram of pivot structure provided by the embodiment of the utility model.
In figure：
31, connecting rod；311, mounting hole is switched；312, limiting slot；313, connecting shaft；314, knock hole；32, regulating switch；
321, limited block；322, sealed magnet；323, magnet is unlocked；33, bearing is adjusted；331, connecting shaft hole；332, locking slot；
3321, locking slot guide surface；34, ejector pin；341, ejector pin magnet；342, ejector pin guide surface.
Specific embodiment
It, below will knot to enable the purpose of utility model, feature, advantage of the utility model more obvious and understandable
The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described,
Obviously, the embodiments described below are only the utility model a part of the embodiment, and not all embodiment.Based on this reality
It is obtained by those of ordinary skill in the art without making creative efforts all other with the embodiment in novel
Embodiment is fallen within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "top", "bottom", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.
It should be noted that it can be directly to separately when a component is considered as " connection " another component
One component may be simultaneously present the component being centrally located.When a component is considered as " setting exists " another component,
It, which can be, is set up directly on another component or may be simultaneously present the component being centrally located.
1-2 and the technical solution of the utility model is further illustrated by specific embodiment with reference to the accompanying drawing.
In one embodiment, a kind of pivot structure, including connecting rod 31, one end of connecting rod 31 are fixedly connected with connecting shaft
313.Specifically, connecting shaft 313 is vertical with connecting rod 31；It is arranged in connecting shaft 313 and adjusts bearing 33.Bearing 33 is adjusted to be equipped with
For being socketed the connecting shaft hole 331 of connecting shaft 313, knock hole 314 is offered on the axis side of connecting shaft 313, in knock hole 314
It is movable to be installed with ejector pin 34.It is being provided with several circular connecting shafts 313 on the hole wall of connecting shaft hole 331 with the ejector pin 34
The matched locking slot 332 of shape；
The pivot structure of the present embodiment further includes regulating switch 32；The connecting shaft (313) connects the connecting rod (31)
One end face offers switch limit hole, and knock hole 314 is connected to the switch limit hole of connecting shaft 313.Regulating switch 32 is along connecting shaft
313 axially penetrate through connecting rod 31, and protrude into switch limit hole；The first end of regulating switch 32 is arranged at intervals with sealed magnet
322 and unlock magnet 323；Ejector pin 34 is provided with ejector pin magnet 341 in one end in face of regulating switch 32；
By the rotation regulating switch (32), make knock hole (314) described in unlock magnet (323) face, it is described
There is a natural attraction between the sexes for unlock magnet (323) and the ejector pin (34), and the ejector pin (34) is sucked from locking slot (323), at this point, the tune
The rotation direction of bearings (33) is unrestricted；By rotating the regulating switch (32), make sealed magnet (322) face
Identical charges repel each other for the knock hole (314), the sealed magnet (322) and the ejector pin (34), and the ejector pin (34) is by repulsion top
Enter in the locking slot (322), to limit the rotation for adjusting bearing (33).
In the present embodiment, the shape of each locking slot 332 is identical, so 332 center of locking slot is in the same plane, and should
Central axis of the plane perpendicular to connecting shaft hole 331.
In a preferred embodiment, when ejector pin 34 is headed into locking slot 332, adjusting bearing 33 can only be relative to connecting rod 31
One-directional rotation, please refers to Fig. 2.
Specifically, locking slot 332 includes a guiding cell wall 3321.Ejector pin 34 is provided in one end far from regulating switch 32
One wedge angle, wedge angle include the ejector pin guide surface 342 to match with guiding cell wall (3321).
Bearing 33 is adjusted toward when first direction (direction A shown in figure) rotation, ejector pin guide surface 342 can be along locking slot
332 guiding cell wall 3321 slides, so that ejector pin 34 be driven to slide to the direction close to regulating switch 32, adjust bearing 33 it is past with
When the opposite second direction of first direction rotates, wedge angle is locked the second cell wall limit of slot 332, to prevent to adjust bearing 33
It is rotated toward second direction.
As an alternative embodiment, the quantity of knock hole 314 is two, two knock holes, 314 company of being symmetrically disposed on
On the axis side of spindle 313, an ejector pin 34 is respectively equipped in each knock hole 314；Corresponding, the quantity of locking slot 332 is positive idol
It is several, and be uniformly distributed on the hole wall of connecting shaft hole 331.The quantity of sealed magnet 322 and the quantity for unlocking magnet 323 are equal
It is two, two sealed magnet 322 are symmetrical relative to regulating switch 32, and two unlock magnet 323 are relative to regulating switch
32 is symmetrical.It should be noted that two sealed magnet 322 and two unlock magnet 323 are only one of which of the invention
Optional embodiment, it should be appreciated that when not needing to make the creative labor, and simply change the quantity and correspondence of magnet
Changing distribution mode also should be within protection scope of the present invention.
In a preferred embodiment, the first end of connecting rod 31 offers the switch mounting hole for installing regulating switch 32
311；Connecting shaft 313 connects on an end face of connecting rod 31, and switch 311 position of mounting hole is corresponding with switch limit hole.Switch peace
It fills hole 311 and axially penetrates through connecting rod 31, and coupling cock limit hole along connecting shaft 313.It should be noted that switch limit hole can
Can also to be the blind hole not through connecting shaft 313 through the through-hole of connecting shaft 313.
Specifically, the first end for defining regulating switch 32 is one end that regulating switch 32 protrudes into switch limit hole, adjusting is opened
The second end for closing 32 is the one end of regulating switch 32 far from switch limit hole.It is raised on the cylinder of 32 second end of regulating switch to set
Be equipped with limited block 321, switch mounting hole 311 hole wall on be provided with the matched limiting slot 312 of the shape of limited block 321,
Limited block 321 can rotate under the limit of limiting slot 312 around regulating switch 32.
In a preferred embodiment, limiting slot 312 offers far from a cell wall of connecting shaft 313 and is through to connecting rod 31
The mounting groove on the surface far from connecting shaft 313.When installation and adjustment switch 32, the limited block 321 in regulating switch 32 is along installation
Slot is fitted into limiting slot 312.It can simplify the installation of regulating switch 32 by mounting groove, improve assembly efficiency.
In a preferred embodiment, it is provided with regulating tank on the end face of 32 second end of regulating switch or adjusts boss, leads to
It overregulates slot or adjusts the rotation adjusting that boss controls to adjust switch 32.So it can be convenient user for the tune of regulating switch 32
Section.
Ejector pin 34 is set in knock hole 314, and can be slided in knock hole 314.In the present embodiment, connecting shaft 313 is in circle
Column, the axis side of connecting shaft 313 refer to the cylindrical surface of connecting shaft 313.Connecting shaft 313 is installed on far from one end of connecting rod 31
In connecting shaft hole 331.More specifically, regulating switch 32 is in cylindrical shape, is spaced and sets on the cylinder of the first end of regulating switch 32
It is equipped with sealed magnet 322 and unlock magnet 323.
Further, each side of sealed magnet 322 is enclosed with manganese steel piece.Wherein, each side of sealed magnet 322 is
Do not include sealed magnet 322 back to regulating switch 32 one side sealed magnet 322 all exposed faces.Likewise, unlock magnetic
Each side of iron 323 is enclosed with manganese steel piece, wherein unlocks each side of magnet 323 not include unlocking magnet 323 back to tune
Save all exposed faces of the unlock magnet 323 of the one side of switch 32.Manganese steel piece is for shielding the unlock sealed magnet 322 of magnet 323/
Each side surface direction magnetism.
The polarity of the sealed one end of magnet 322 far from regulating switch 32 and unlock magnet 323 far from regulating switch 32 one
The polarity at end is opposite.The polarity and sealed magnet 322 of the one end of ejector pin magnet 341 towards regulating switch 32 are far from regulating switch 32
One end polarity it is identical.
When unlocking 323 face knock hole 314 of magnet, unlocks magnet 323 and ejector pin 34 is attracting, be detached from ejector pin 34 sealed
Slot 332, at this point, the rotation direction for adjusting bearing 33 is unrestricted；When sealed 322 face knock hole 314 of magnet, sealed magnet
322 and ejector pin 34 repel each other, ejector pin 34 is headed into locking slot 332, adjust bearing 33 can only be one-directionally rotated relative to connecting rod 31.
State when for ease of description, by sealed 322 face ejector pin magnet 341 of magnet is defined as the unidirectional of pivot structure
Rotation status；State when unlocking 323 face ejector pin magnet 341 of magnet is defined as to the bidirectional rotation state of pivot structure.
When rotation regulating switch 32, when pivot structure being made to be switched to single direction rotation state by bidirectional rotation state, ejector pin 34
Move under the repulsion of ejector pin magnet 341 and sealed 322 homopolarity of magnet to the direction far from sealed magnet 322, drive wedge angle into
Enter locking slot 332, is one-directionally rotated so that adjusting bearing 33 relative to connecting rod 31.
When rotation regulating switch 32, when pivot structure being made to be switched to bidirectional rotation state by single direction rotation state, ejector pin 34
Move under ejector pin magnet 341 and the heteropolar suction of unlock magnet 323 to close to the direction of unlock magnet 323, drive wedge angle from
Locking slot 332 is opened, to release the limitation for exchanging the rotation of bearings 33, adjusting bearing 33 can be two-way turn relative to connecting rod 31
It is dynamic.
Magnet homopolar-repulsion, heteropolar attracting principle is utilized in pivot structure provided in this embodiment, while matching and closing top
The effect of pin 34 and locking slot 332, so that adjusting bearing 33 when pivot structure is in single direction rotation state relative to connecting rod 31
Single direction rotation can only be carried out：When pivot structure is in bidirectional rotation state, releasing exchanges bearings 33 relative to connecting rod 31
The limitation of rotation direction, i.e. adjusting bearing 33 being capable of Double-directional rotary relative to connecting rod 31.
The above, above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, those skilled in the art should understand that：It is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (10)
1. one end of a kind of pivot structure, including connecting rod (31), the connecting rod (31) is fixedly connected with connecting shaft (313), described
It is arranged in connecting shaft (313) and adjusts bearing (33)；It offers on the adjusting bearing (33) for being socketed the connecting shaft
(313) connecting shaft hole (331), it is characterised in that：
Knock hole (314) are offered on the axis side of the connecting shaft (313)；It is movable in the knock hole (314) to be installed with
Ejector pin (34)；The matched locking slot of shape with the ejector pin (34) is provided on the hole wall of the connecting shaft hole (331)
(332)；
The pivot structure further includes regulating switch (32)；It opens the end face that the connecting shaft (313) connects the connecting rod (31)
Equipped with switch limit hole, the knock hole (314) is connected to the switch limit hole；The regulating switch (32) is along the connecting shaft
(313) axially penetrate through the connecting rod (31), and protrude into the switch limit hole；Between the first end of the regulating switch (32)
Every be provided with sealed magnet (322) and unlock magnet (323)；The ejector pin (34) is arranged in face of the one end of regulating switch (32)
There are ejector pin magnet (341)；
By rotating the regulating switch (32), make knock hole (314) described in unlock magnet (323) face, the unlock
There is a natural attraction between the sexes for the ejector pin magnet (341) of magnet (323) and the ejector pin (34), and the ejector pin (34) is sucked from locking slot (332),
At this point, the rotation direction for adjusting bearing (33) is unrestricted；By rotating the regulating switch (32), make the sealed magnetic
Ejector pin magnet (341) same sex of knock hole (314) described in iron (322) face, the sealed magnet (322) and the ejector pin (34)
Repel each other, the ejector pin (34) is headed into the locking slot (332) by repulsion, to limit the rotation for adjusting bearing (33).
2. pivot structure according to claim 1, which is characterized in that the locking slot (332) includes a guiding cell wall
(3321)；The ejector pin (34) is provided with a wedge angle far from the one end of the regulating switch (32), the wedge angle include with it is described
The ejector pin guide surface (342) that guiding cell wall (3321) matches；
When the ejector pin (34) is headed into the locking slot (332) by repulsion, the ejector pin guide surface (342) is adjacent to the guiding
Cell wall (3321), the adjusting bearing (33) can only rotate towards first direction.
3. pivot structure according to claim 1, which is characterized in that the quantity of the knock hole (314) is two, two institutes
Knock hole (314) is stated to be symmetrically disposed on the axis side of the connecting shaft (313)；It is respectively equipped in each knock hole (314)
One ejector pin (34)；
The quantity of the locking slot (332) is positive even number, and is uniformly distributed on the hole wall of the connecting shaft hole (331)；
The quantity of the sealed magnet (322) and the quantity of unlock magnet (323) are two, two sealed magnetic
Iron (322) is symmetrical relative to the regulating switch (32), and two unlock magnet (323) are relative to the regulating switch
(32) symmetrical.
4. pivot structure according to claim 1, which is characterized in that the end of the connecting rod (31) is offered for installing
The switch mounting hole (311) of the regulating switch (32)；The switch mounting hole (311) is connected to the switch limit hole；
It is raised on the cylinder of the second end of the regulating switch (32) to be provided with limited block (321)；The switch mounting hole
(311) the matched limiting slot of shape (312) with the limited block (321) is provided on hole wall, the limited block (321) can
Around the axial rotation of the regulating switch (32) under the limit of the limiting slot (312).
5. pivot structure according to claim 4, which is characterized in that the limiting slot (312) is far from the connecting shaft
(313) a cell wall offers, and is through to the mounting groove on the surface far from the connecting shaft (313) of the connecting rod (31).
6. pivot structure according to claim 1, which is characterized in that on the end face of the second end of the regulating switch (32)
It is provided with adjusting boss.
7. pivot structure according to claim 1, which is characterized in that on the end face of the second end of the regulating switch (32)
It is provided with regulating tank.
8. pivot structure according to claim 1, which is characterized in that the regulating switch (32) is cylindrical；The lock
It closes on magnet (322) and the cylinder for unlocking the first end that magnet (323) are set to the regulating switch (32).
9. pivot structure according to claim 8, which is characterized in that the sealed magnet (322) is far from regulating switch
(32) polarity of the one end of polarity and unlock magnet (323) far from regulating switch (32) of one end is on the contrary, ejector pin magnet (341)
The polarity of the one end of the polarity of one end towards regulating switch (32) and sealed magnet (322) far from regulating switch (32) is identical；
It when unlocking magnet (323) face knock hole (314), unlocks magnet (323) and ejector pin (34) is attracting, keep ejector pin (34) de-
From locking slot (332), at this point, the rotation direction for adjusting bearing (33) is unrestricted；When sealed magnet (322) face knock hole
(314) when, sealed magnet (322) and ejector pin (34) repel each other, and ejector pin (34) is headed into locking slot (332), adjust bearing (33)
It can only be one-directionally rotated relative to connecting rod (31).
10. pivot structure according to claim 1, which is characterized in that the sealed magnet (322) and the unlock magnet
(323) each side is enclosed with manganese steel piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820463347.3U CN208138334U (en) | 2018-03-30 | 2018-03-30 | A kind of pivot structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820463347.3U CN208138334U (en) | 2018-03-30 | 2018-03-30 | A kind of pivot structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208138334U true CN208138334U (en) | 2018-11-23 |
Family
ID=64291029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820463347.3U Active CN208138334U (en) | 2018-03-30 | 2018-03-30 | A kind of pivot structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208138334U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106543A (en) * | 2020-01-14 | 2020-05-05 | 安徽明远电力设备制造有限公司 | Thermosiphon heat dissipation combined switch cabinet |
| CN112875873A (en) * | 2021-01-13 | 2021-06-01 | 哈尔滨工业大学 | Cross-flow bee-lattice microorganism carrier filler |
| CN113359306A (en) * | 2021-05-21 | 2021-09-07 | 王媛媛 | Film fixing device for diagnosis and treatment of cardiology department |
| CN115791029A (en) * | 2023-01-10 | 2023-03-14 | 广州瑞港消防设备有限公司 | Fire valve water pressure resistance detection device and detection method |
-
2018
- 2018-03-30 CN CN201820463347.3U patent/CN208138334U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106543A (en) * | 2020-01-14 | 2020-05-05 | 安徽明远电力设备制造有限公司 | Thermosiphon heat dissipation combined switch cabinet |
| CN112875873A (en) * | 2021-01-13 | 2021-06-01 | 哈尔滨工业大学 | Cross-flow bee-lattice microorganism carrier filler |
| CN113359306A (en) * | 2021-05-21 | 2021-09-07 | 王媛媛 | Film fixing device for diagnosis and treatment of cardiology department |
| CN115791029A (en) * | 2023-01-10 | 2023-03-14 | 广州瑞港消防设备有限公司 | Fire valve water pressure resistance detection device and detection method |
| CN115791029B (en) * | 2023-01-10 | 2023-04-21 | 广州瑞港消防设备有限公司 | Fire valve water pressure resistance detection device and detection method |
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