CN209485406U - Vacuum tank - Google Patents
Vacuum tank Download PDFInfo
- Publication number
- CN209485406U CN209485406U CN201920181797.8U CN201920181797U CN209485406U CN 209485406 U CN209485406 U CN 209485406U CN 201920181797 U CN201920181797 U CN 201920181797U CN 209485406 U CN209485406 U CN 209485406U
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- Prior art keywords
- crank
- cabinet
- case lid
- double
- vacuum tank
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Abstract
The vacuum tank of stability when can guarantee that case lid is opened the purpose of the utility model is to provide one kind, the cabinet and case lid that constitute vacuum environment are closed including mutually covering, case lid is connected with crank and rocker mechanism/double-crank mechanism, and cylinder drives crank and rocker mechanism/double-crank mechanism to swing drive case lid and closes the opening in cabinet or two kinds of location status of opening far from cabinet in lid.Since there are dead-centre positions for crank and rocker mechanism/double-crank mechanism, there is self-locking function in dead-centre position, so when cylinder driving crank and rocker mechanism/double-crank mechanism opens case lid to dead-centre position, the power that crank and rocker mechanism/double-crank mechanism provides is enough supporting box cover and gravity is overcome to provide lasting support force again without cylinder, and supporting & stablizing, safe and reliable.
Description
Technical field
The utility model relates to vacuum detectings and vacuum processing technique field, and in particular to a kind of vacuum tank.
Background technique
Many scientific instrument require to work under certain vacuum environment with equipment, and vacuum tank is that sensitive component mentions
For vacuum environment, guarantee its normal work, thus the processing of the detection even component of component will in vacuum tank into
Row.When replacing detected member or work piece, need often to open and cover the case lid for closing vacuum tank.Especially some vertical cloth
The vacuum tank set, case lid are the top positioned at cabinet, and when opening, case lid is fallen due to its own gravity, this
Require the switching mechanism of case lid that there is self-locking function.In the prior art, the opening of case lid is realized usually using lead screw
It is closed with lid, but interaction lead screw speed is too slow, inefficiency；Although cylinder driving is convenient and efficient, cylinder cannot be self-locking, no
Safety.
Utility model content
The vacuum tank of stability when can guarantee that case lid is opened the purpose of the utility model is to provide one kind.
To achieve the goals above, the technical solution adopted in the utility model are as follows: a kind of vacuum tank, including mutually cover conjunction structure
At the cabinet and case lid of vacuum environment, case lid is connected with crank and rocker mechanism/double-crank mechanism, and cylinder drives crank rocker machine
Structure/double-crank mechanism, which is swung, drives case lid to be in opening of the lid conjunction in cabinet or two kinds of position shapes of opening far from cabinet
State.
In above scheme, since there are dead-centre positions for crank and rocker mechanism/double-crank mechanism, have in dead-centre position self-locking
Function, so when cylinder driving crank and rocker mechanism/double-crank mechanism opens case lid to dead-centre position, crank and rocker mechanism/bis-
The power that crank mechanism provides is enough supporting box cover and gravity is overcome to provide lasting support force again without cylinder, and supports steady
It is fixed, safe and reliable.
Detailed description of the invention
Fig. 1 is schematic diagram when case lid lid closes；
Fig. 2 is schematic diagram when case lid is opened.
Specific embodiment
Four-bar linkage is by the connecting rod between the hinged connecting rod of motionless rack and rack both ends and two connecting rods
Composition, wherein the connecting rod that can make circumferential rotation type is known as crank, the connecting rod that can only be swung within the scope of certain angle is known as
Rocking bar.If two connecting rods are crank, this four-bar linkage is referred to as double-crank mechanism, is if any a connecting rod
Crank, another connecting rod are rocking bar, this four-bar linkage is then referred to as crank and rocker mechanism.For crank and rocker mechanism
For double-crank mechanism, when connecting rod is conllinear with crank, the power no matter being added on driving link is much, and entire mechanism is all in quiet
Only state, this position are known as dead-centre position.
As shown in Figure 1 and Figure 2, a kind of vacuum tank closes the cabinet 10 and case lid 20 that constitute vacuum environment, case including mutually covering
Lid 20 is connected with crank and rocker mechanism/double-crank mechanism, and cylinder 40 drives crank and rocker mechanism/double-crank mechanism to swing and drives
Case lid 20 is in lid and closes the opening in cabinet 10 or two kinds of location status of opening far from cabinet 10.Crank and rocker mechanism
All there is dead-centre position with double-crank mechanism, so the unlatching that both mechanisms are applied to the case lid 20 of vacuum tank is supported machine
On structure, when cylinder 40 drives crank and rocker mechanism/double-crank mechanism to open case lid 20 to dead-centre position, crank and rocker mechanism/bis-
The power that crank mechanism provides is enough supporting box cover 20 and gravity is overcome to provide lasting support force again without cylinder 40, and
It is supporting & stablizing, safe and reliable.
As a preferred embodiment of the present invention, the crank and rocker mechanism includes being fixedly connected on 10 outer wall of cabinet
The first support 31 and the second support 32, the suspension end of the first and second support 31,32 pass through respectively the first and second articulated shaft 33a,
33b and crank, rocking bar 34,35 are hinged, crank, rocking bar 34,35 the other end pass through respectively third and fourth articulated shaft 33c, 33d with
The both ends of connecting rod 36 are hinged, first, second, third and fourth articulated shaft 33a, 33b, 33c, 33d parallel arrangement, crank 34 and 40 phase of cylinder
Even, rocking bar 35 is fixedly connected with case lid 20.Crank 34 is used as driving link, and rocking bar 35 and connecting rod 36 are used as driven member, such as Fig. 1 institute
Show, angle formula is arranged between crank 34 and connecting rod 36, and cylinder 40 drives crank 34 to make to turn clockwise around the first articulated shaft 33a
Dynamic, the position of third articulated shaft 33c changes, and the position of connecting rod 36 also changes, as shown in Fig. 2, when crank 34 and even
When bar 36 is conllinear, reach dead-centre position.
In order to meet the requirement of crank and rocker mechanism, the sum of the wire length of crank 34 and first and second articulated shaft 33a, 33b
The sum of the length of < rocking bar 35 and connecting rod 36, the length of the length < connecting rod 36 of the length < rocking bar 35 of crank 34, and the first hinge
Spindle 33a to 10 outer wall of cabinet distance > the second articulated shaft 33b to 10 outer wall of cabinet distance.
When crank and rocker mechanism is in dead-centre position, although along the conllinear direction of crank 34 and connecting rod 36 no matter
Apply great power, will not all destroy entire mechanism all in static state, but mechanism may be subjected to other directions
External force releases dead point state, influences crank and rocker mechanism and supports to stablizing for case lid 20, so the first support 31 is far from second
The limiting section 50 for limiting 34 position of crank is provided on the side wall of 32 sides of seat.The angle that cylinder 40 drives crank 34 to rotate
Degree is just over the angle of some dead-centre positions, is resisted against crank 34 on the limiting section 50 on first support 31, even if mechanism
It is influenced by external force, static state will not be released, guarantee the stability supported to case lid 20.
Further, one end of the cylinder block 41 of cylinder 40 is hinged, another by the outer wall of the 5th articulated shaft 43 and cabinet 10
The end of the piston rod 42 of one end is connected with crank 34, and the 5th articulated shaft 43 and the first articulated shaft 33a are arranged in parallel.
Cabinet 10 is vertical, and case lid 20 is located at 10 top of cabinet.
Claims (6)
1. a kind of vacuum tank closes the cabinet (10) and case lid (20) that constitute vacuum environment including mutually covering, it is characterised in that: case lid
(20) it is connected with crank and rocker mechanism/double-crank mechanism, cylinder (40) drives crank and rocker mechanism/double-crank mechanism to swing and drives
Case lid (20) is in lid and closes the opening in cabinet (10) or two kinds of location status of opening far from cabinet (10).
2. vacuum tank according to claim 1, it is characterised in that: the crank and rocker mechanism includes being fixedly connected on case
The first support (31) and the second support (32) on body (10) outer wall, the suspension end of the first and second support (31,32) pass through respectively
One, two articulated shafts (33a, 33b) and crank, rocking bar (34,35) hingedly, crank, rocking bar (34,35) the other end pass through the respectively
Three, four articulated shafts (33c, 33d) and the both ends of connecting rod (36) are hinged, the first, second, third and fourth articulated shaft (33a, 33b, 33c, 33d)
Parallel arrangement, crank (34) are connected with cylinder (40), and rocking bar (35) is fixedly connected with case lid (20).
3. vacuum tank according to claim 2, it is characterised in that: crank (34) and the first and second articulated shaft (33a, 33b)
The length < of the sum of the length of the sum of wire length < rocking bar (35) and connecting rod (36), the length < rocking bar (35) of crank (34) connects
The length of bar (36), and second articulated shaft of distance > (33b) of the first articulated shaft (33a) to cabinet (10) outer wall arrives cabinet (10)
The distance of outer wall.
4. vacuum tank according to claim 2, it is characterised in that: the first support (31) is far from the second support (32) side
The limiting section (50) for limiting crank (34) position is provided on side wall.
5. vacuum tank according to claim 2, it is characterised in that: one end of the cylinder block (41) of cylinder (40) passes through the 5th
Articulated shaft (43) is connected with the end of hinged, the other end the piston rod (42) of the outer wall of cabinet (10) with crank (34), the 5th hinge
Spindle (43) and the first articulated shaft (33a) are arranged in parallel.
6. vacuum tank according to claim 1, it is characterised in that: cabinet (10) is vertical, and case lid (20) is located at case
Above body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920181797.8U CN209485406U (en) | 2019-01-29 | 2019-01-29 | Vacuum tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920181797.8U CN209485406U (en) | 2019-01-29 | 2019-01-29 | Vacuum tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209485406U true CN209485406U (en) | 2019-10-11 |
Family
ID=68133527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920181797.8U Active CN209485406U (en) | 2019-01-29 | 2019-01-29 | Vacuum tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209485406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497472A (en) * | 2020-04-24 | 2020-08-07 | 合肥利晟激光科技有限公司 | Full-automatic laser coding machine |
| CN112744300A (en) * | 2021-02-22 | 2021-05-04 | 东风商用车有限公司 | Electric adjusting top spoiler system and truck |
-
2019
- 2019-01-29 CN CN201920181797.8U patent/CN209485406U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497472A (en) * | 2020-04-24 | 2020-08-07 | 合肥利晟激光科技有限公司 | Full-automatic laser coding machine |
| CN112744300A (en) * | 2021-02-22 | 2021-05-04 | 东风商用车有限公司 | Electric adjusting top spoiler system and truck |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |