CN114538089A - Adsorption device - Google Patents
Adsorption device Download PDFInfo
- Publication number
- CN114538089A CN114538089A CN202210149613.6A CN202210149613A CN114538089A CN 114538089 A CN114538089 A CN 114538089A CN 202210149613 A CN202210149613 A CN 202210149613A CN 114538089 A CN114538089 A CN 114538089A
- Authority
- CN
- China
- Prior art keywords
- wall
- piston
- vacuum
- air inlet
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
- B65G47/917—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers control arrangements
Abstract
The present invention provides an adsorption apparatus comprising: the device comprises an air inlet pipe, a cylinder body, a piston, a traction device, a second air inlet branch pipe, a second vacuum branch pipe and an adsorption part; the cylinder body is provided with a cylindrical inner cavity, the inner cavity is provided with a first inner wall and a second inner wall, the first inner wall and the inner wall are respectively positioned at two axial ends of the inner cavity, the piston can be movably arranged in the inner cavity, a first cavity is formed between the piston and the first inner wall, and a second cavity is formed between the piston and the second inner wall; the lateral wall that first cavity passes through is provided with the second through-hole, and the admission pipe passes through the second branch air inlet pipe and connects on the second cavity, and the gas in the intake pipe gets into the second cavity and applys the pressure towards first inner wall direction to the piston through the second branch air inlet pipe, and draw-off device is connected with the piston to exert the pulling force towards second inner wall direction to the piston. The vacuum degree can be kept when the air inlet pressure of the vacuum generator fluctuates, and then the phenomenon that the adsorbed object falls is avoided.
Description
Technical Field
The invention relates to the technical field of vacuum adsorption, in particular to an adsorption device.
Background
Use vacuum chuck to snatch adsorbable object, put adsorbable object to the assigned position, need keep the vacuum in the system at this in-process and satisfy minimum requirement of snatching, adsorbable object just can not drop at the removal in-process, if at this in-process, the unsatisfied requirement of vacuum value, then adsorbable object has the risk of dropping, causes the operation unusual to there is the potential safety hazard. A conventional vacuum system is generated by a vacuum generator, i.e. compressed air is input into the vacuum generator, and the vacuum generator outputs vacuum for grabbing the adsorbable object, and at this time, a certain vacuum degree needs to be maintained to provide enough grabbing force, so that when the intake pressure suddenly drops, the generated vacuum is reduced, and the adsorbable object is at risk of falling when the vacuum is less than the minimum required value.
Disclosure of Invention
The invention aims to provide an adsorption device which can maintain vacuum degree when the air inlet pressure of a vacuum generator fluctuates, and further avoid the phenomenon that an adsorbed object falls off.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an adsorption device comprising: the device comprises an air inlet pipe, a first air inlet branch pipe, a second air inlet branch pipe, a vacuum generating device, a cylinder body, a piston, a traction device, a first vacuum branch pipe, a second vacuum branch pipe and an adsorption part;
the air inlet pipe is connected with an external air source so that the external air source can input air into the air inlet pipe, the vacuum generating device is connected with the air inlet pipe through the first air inlet branch pipe so that the air in the air inlet pipe can enter the vacuum generating device through the first air inlet branch pipe, the vacuum generating device is connected with the adsorption part through the first vacuum branch pipe, and when the air in the air inlet pipe enters the vacuum generating device, the vacuum generating device can be driven to vacuumize the adsorption part through the first vacuum branch pipe;
the cylinder body is provided with a cylindrical inner cavity, the inner cavity is provided with a first inner wall and a second inner wall, the first inner wall and the second inner wall are respectively positioned at two axial ends of the inner cavity, the piston can be movably arranged in the inner cavity, the shape of the piston is matched with that of the inner cavity on the section perpendicular to the axis of the inner cavity, a first cavity is formed between the piston and the first inner wall, and a second cavity is formed between the piston and the second inner wall;
the vacuum adsorption device is characterized in that a first through hole is formed in the side wall of the first cavity, one end of the second vacuum branch pipe is connected to the adsorption part, the other end of the second vacuum branch pipe is connected to the first through hole, a second through hole is formed in the side wall of the second cavity, and one end of the second air inlet branch pipe is connected to the air inlet pipe. The other end of the pulling device is connected to the second through hole, so that gas in the air inlet pipe can enter the second cavity through the second air inlet branch pipe and exert pressure towards the first inner wall direction on the piston, and the pulling device is connected with the piston and exerts pulling force towards the second inner wall direction on the piston.
Preferably, the inner cavity is cylindrical in shape, and the piston is cylindrical with the same diameter as the inner cavity.
Preferably, the traction device comprises a connecting rod and a balancing weight;
the axial line of the inner cavity extends along the vertical direction, the first inner wall is positioned above the second inner wall, a third through hole is formed in the second inner wall, the connecting rod penetrates through the third through hole, the top end of the connecting rod is connected to the piston, and the balancing weight is connected to the bottom end of the connecting rod, so that the balancing weight can apply pulling force towards the direction of the second inner wall to the piston through the self gravity.
Preferably, a sealing ring is arranged between the outer wall of the connecting rod and the inner wall of the third through hole to seal a gap between the connecting rod and the inner wall of the third through hole.
Preferably, an annular groove extending along the circumferential direction of the third through hole is formed in the inner wall of the third through hole, and the sealing ring is arranged in the annular groove.
Preferably, the balancing weight comprises at least two balancing weight pieces, and the at least two balancing weight pieces are sequentially detachably connected to the connecting rod.
Preferably, the connecting rod is including the screw thread section that is provided with the external screw thread, the counter weight piece has the screw, the counter weight piece passes through screw threaded connection be in on the screw thread section.
Preferably, the device also comprises a vacuum tube;
the first vacuum branch pipe and the second vacuum branch pipe are connected to the adsorption part through the vacuum pipes.
Preferably, the device also comprises a pressure sensor;
the pressure sensor is arranged on the first vacuum branch pipe to collect pressure information in the first vacuum branch pipe.
Preferably, the adsorption part is provided with suckers, the adsorption part adsorbs a target object through the suckers, and the number of the suckers is at least two.
According to the adsorption device, the side wall of the first cavity is provided with the first through hole, one end of the second vacuum branch pipe is connected to the adsorption part, the other end of the second vacuum branch pipe is connected to the first through hole, the side wall of the second cavity is provided with the second through hole, and one end of the second air inlet branch pipe is connected to the air inlet pipe. The other end of the air inlet pipe is connected to the second through hole, so that air in the air inlet pipe can enter the second cavity through the second air inlet branch pipe and exert pressure towards the first inner wall direction on the piston, the drawing device is connected with the piston and exerts drawing towards the second inner wall direction on the piston, the vacuum degree can be kept when the air inlet pressure of the vacuum generator fluctuates, and the phenomenon that the adsorbed object falls off is avoided.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an adsorption apparatus according to the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure: 1, an air inlet pipe; 2-a first inlet manifold; 3-a second inlet manifold; 4-a vacuum generating device; 5-cylinder body; 6-a piston; 7-a pulling device; 8-a first vacuum manifold; 9-a second vacuum manifold; 10-an adsorption component; 11-a first inner wall; 12-a second inner wall; 13-a first cavity; 14-a second cavity; 15-a first via; 16-a second via; 17-a connecting rod; 18-a counterweight block; 19-a third via; 20-sealing ring; 21-an annular groove; 22-a weight stack; 23-a thread segment; 24-vacuum tube; 25-a pressure sensor; 26-suction cup.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the adsorption apparatus of the present invention is made with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an adsorption apparatus includes: the device comprises an air inlet pipe 1, a first air inlet branch pipe 2, a second air inlet branch pipe 3, a vacuum generating device 4, a cylinder 5, a piston 6, a drawing device 7, a first vacuum branch pipe 8, a second vacuum branch pipe 9 and an adsorption part 10. Intake pipe 1 is connected with outside air supply, so that outside air supply can be with gaseous input to intake pipe 1 in, vacuum generator 4 is connected with intake pipe 1 through first air inlet branch 2, so that the gas in the intake pipe 1 can get into in vacuum generator 4 through first air inlet branch 2, vacuum generator 4 is connected with adsorption element 10 through first vacuum branch 8, when gaseous entering vacuum generator 4 in intake pipe 1, can drive vacuum generator 4 and carry out the evacuation through first vacuum branch 8 to adsorption element 10, be used for adsorbing outside target object through adsorption element 10.
Specifically, as shown in fig. 1, suction cups 26 are provided on the suction member 10, and the suction member 10 sucks the target object by the suction cups 26, and the number of the suction cups 26 is at least two. The suction member 10 can ensure the firmness of the suction member 10 to an external object by sucking the target object by the at least two suction cups 26.
In a specific manufacturing, as shown in fig. 1, a pressure sensor 25 may be further included, and the pressure sensor 25 is disposed on the first vacuum branch pipe 8 to collect pressure information in the first vacuum branch pipe 8.
Meanwhile, as shown in fig. 1, the cylinder 5 has a cylindrical inner cavity (not shown), the inner cavity has a first inner wall 11 and a second inner wall 12, and the first inner wall 11 and the second inner wall 12 are respectively located at two axial ends of the inner cavity, the piston 6 is movably arranged in the inner cavity, and on a section perpendicular to the axis of the inner cavity, the shape of the piston 6 is matched with that of the inner cavity, in actual manufacturing, the shape of the inner cavity can be cylindrical, and at this time, the piston 6 is cylindrical with the same diameter as that of the inner cavity. A first cavity 13 is formed between the piston 6 and the first inner wall 11 and a second cavity 14 is formed between the piston and the second inner wall 12. The side wall of the first cavity 13 is provided with a first through hole 15, one end of the second vacuum branch pipe 9 is connected to the adsorption part 10, the other end of the second vacuum branch pipe is connected to the first through hole 15, the side wall of the second cavity 14 is provided with a second through hole 16, and one end of the second air inlet branch pipe 3 is connected to the air inlet pipe 1. The other end is connected to the second through hole 16 so that the gas in the gas inlet pipe 1 can enter the second cavity 14 through the second gas inlet branch pipe 3 and apply pressure to the piston 6 towards the first inner wall 11, and the pulling device 7 is connected with the piston 6 and applies pulling force to the piston 6 towards the second inner wall 12.
In actual work, if the gas in the gas inlet pipe 1 reaches a certain pressure or above, the vacuum generating device 4 can be ensured to generate enough vacuum degree on the adsorption component 10, so that the adsorption component 10 can firmly adsorb an external target object, at the moment, the gas in the gas inlet pipe 1 enters the second cavity 14 through the second gas inlet branch pipe 3, the pressure applied to the piston 6 in the direction towards the first inner wall 11 and the pulling force applied to the piston 6 by the pulling device 7 in the direction towards the second inner wall 12 are mutually offset, and the piston 6 is stopped at a specific position in the cylinder 5. When the pressure of the gas in the gas inlet pipe 1 is reduced, the vacuum degree generated by the vacuum generating device 4 on the adsorption part 10 is insufficient, so that the adsorption part 10 cannot firmly adsorb an external target object, at this time, the pulling force applied by the pulling device 7 to the piston 6 in the direction towards the second inner wall 12 is greater than the pressure applied by the gas entering the second cavity 14 from the gas inlet pipe 1 to the piston 6 in the direction towards the first inner wall 11, so that the piston 6 moves towards the second inner wall 12, that is, the volume of the second cavity 14 is reduced, and the volume of the first cavity 13 is increased, because the first cavity 13 is connected with the adsorption part 10 through the second vacuum branch pipe 9, the adsorption part 10 can be vacuumized in the process that the volume of the first cavity 13 is increased, thereby realizing that the pressure of the gas in the gas inlet pipe 1 is reduced, and under the condition that the vacuum degree generated by the vacuum generating device 4 on the adsorption part 10 is insufficient, the vacuum degree of the adsorption part 10 is maintained in a mode that the volume of the first cavity 13 is increased, and therefore the phenomenon that the adsorbed object falls is avoided. Specifically, as shown in fig. 1, the vacuum pipe 24 may be further included, and in this case, the first vacuum branch pipe 8 and the second vacuum branch pipe 9 are both connected to the adsorption component 10 through the vacuum pipe 24.
As an embodiment, as shown in fig. 1 and 2, the pulling device 7 includes a connecting rod 17 and a weight block 18. The axis of inner chamber extends along vertical direction to first inner wall 11 is located the top of second inner wall 12, is provided with third through hole 19 on second inner wall 12, and connecting rod 17 wears to establish in third through hole 19, and the top is connected on piston 6, and balancing weight 18 is connected in connecting rod 17's bottom, so that balancing weight 18 can apply the pulling force towards second inner wall 12 direction to piston 6 through self gravity.
Further, as shown in fig. 2, a packing 20 is provided between an outer wall of the connecting rod 17 and an inner wall of the third through hole 19 to seal a gap between the connecting rod 17 and the inner wall of the third through hole 19. The gas that can thus enter the second chamber 14 seeps out from the gap between the connecting rod 17 and the inner wall of the third through hole 19. Preferably, as shown in fig. 2, an annular groove 21 extending along the circumferential direction of the third through hole 19 is provided on the inner wall of the third through hole 19, and the sealing ring 20 is disposed in the annular groove 21 to prevent the sealing ring 20 from coming out of the third through hole 19, thereby ensuring the sealing effect.
As an implementation, as shown in fig. 1, the counterweight block 18 includes at least two weight plates 22, and at least two weight plates 22 are sequentially detachably connected to the connecting rod 17. By adopting the mode, the total weight of the balancing weight 18 can be adjusted according to actual needs, and the working adaptability is further improved. Further, as shown in the drawings, the connecting rod 17 includes a threaded section 23 provided with an external thread, and the weight plate 22 has a threaded hole (not shown) through which the weight plate 22 is threadedly connected to the threaded section 23. This can facilitate mounting or dismounting between the weight plate 22 and the connecting rod 17.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An adsorption device, characterized in that:
the method comprises the following steps: the device comprises an air inlet pipe (1), a first air inlet branch pipe (2), a second air inlet branch pipe (3), a vacuum generating device (4), a cylinder body (5), a piston (6), a traction device (7), a first vacuum branch pipe (8), a second vacuum branch pipe (9) and an adsorption part (10);
the air inlet pipe (1) is connected with an external air source, so that the external air source can input air into the air inlet pipe (1), the vacuum generating device (4) is connected with the air inlet pipe (1) through the first air inlet branch pipe (2), so that the air in the air inlet pipe (1) can enter the vacuum generating device (4) through the first air inlet branch pipe (2), the vacuum generating device (4) is connected with the adsorption component (10) through the first vacuum branch pipe (8), and when the air in the air inlet pipe (1) enters the vacuum generating device (4), the vacuum generating device (4) can be driven to vacuumize the adsorption component (10) through the first vacuum branch pipe (8);
the cylinder body (5) is provided with a cylindrical inner cavity, the inner cavity is provided with a first inner wall (11) and a second inner wall (12), the first inner wall (11) and the second inner wall (12) are respectively positioned at two axial ends of the inner cavity, the piston (6) can be movably arranged in the inner cavity, in a cross section perpendicular to the axis of the inner cavity, the shape of the piston (6) is matched with that of the inner cavity, a first cavity (13) is formed between the piston (6) and the first inner wall (11), and a second cavity (14) is formed between the piston (6) and the second inner wall (12);
be provided with first through-hole (15) on the lateral wall of first cavity (13), the one end of second vacuum branch pipe (9) is connected on adsorption element (10), and the other end is connected on first through-hole (15), be provided with second through-hole (16) on the lateral wall of second cavity (14), the one end of second air inlet branch pipe (3) is connected on intake pipe (1), and the other end is connected on second through-hole (16), so that gas in intake pipe (1) can pass through second air inlet branch pipe (3) gets into second cavity (14) and right piston (6) apply the orientation the pressure of first inner wall (11) direction, draw gear (7) with piston (6) are connected, and to piston (6) apply the orientation the pulling force of second inner wall (12) direction.
2. The adsorption device of claim 1, wherein:
the inner cavity is cylindrical, and the piston (6) is cylindrical with the diameter being the same as that of the inner cavity.
3. The adsorption device of claim 2, wherein:
the traction device (7) comprises a connecting rod (17) and a balancing weight (18);
the axis of inner chamber extends along vertical direction, and first inner wall (11) are located the top of second inner wall (12) be provided with third through-hole (19) on second inner wall (12), connecting rod (17) wear to establish in third through-hole (19), and the top is connected on piston (6), balancing weight (18) are connected the bottom of connecting rod (17), so that balancing weight (18) can through self gravity to piston (6) apply towards the pulling force of second inner wall (12) direction.
4. A sorption arrangement according to claim 3, wherein:
and a sealing ring (20) is arranged between the outer wall of the connecting rod (17) and the inner wall of the third through hole (19) to seal a gap between the connecting rod (17) and the inner wall of the third through hole (19).
5. The adsorption device of claim 4, wherein:
an annular groove (21) extending along the circumferential direction of the third through hole (19) is formed in the inner wall of the third through hole (19), and the sealing ring (20) is arranged in the annular groove (21).
6. A suction device according to claim 3, characterized in that:
the balancing weight (18) comprises at least two balancing weight plates (22), and the at least two balancing weight plates (22) are sequentially detachably connected to the connecting rod (17).
7. The adsorption device of claim 6, wherein:
the connecting rod (17) is including being provided with screw thread section (23) of external screw thread, counter weight piece (22) have the screw, counter weight piece (22) pass through screw threaded connection in screw thread section (23) are last.
8. An adsorption device according to any one of claims 1 to 7 wherein:
also comprises a vacuum tube (24);
the first vacuum branch pipe (8) and the second vacuum branch pipe (9) are connected to the adsorption part (10) through the vacuum pipe (24).
9. The adsorption device of claim 8, wherein:
further comprising a pressure sensor (25);
the pressure sensor (25) is arranged on the first vacuum branch pipe (8) to collect pressure information in the first vacuum branch pipe (8).
10. An adsorption device according to any one of claims 1 to 7 wherein:
be provided with sucking disc (26) on adsorption element (10), adsorption element (10) pass through sucking disc (26) adsorb the target object, the quantity of sucking disc (26) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149613.6A CN114538089B (en) | 2022-02-18 | 2022-02-18 | Adsorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149613.6A CN114538089B (en) | 2022-02-18 | 2022-02-18 | Adsorption device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114538089A true CN114538089A (en) | 2022-05-27 |
| CN114538089B CN114538089B (en) | 2023-07-21 |
Family
ID=81675351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210149613.6A Active CN114538089B (en) | 2022-02-18 | 2022-02-18 | Adsorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114538089B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0373840A2 (en) * | 1988-12-10 | 1990-06-20 | Palamatic Handling Systems Limited | Vacuum lifting apparatus |
| CN106115256A (en) * | 2016-07-26 | 2016-11-16 | 浙江恒立数控科技股份有限公司 | Vacuum intaking device |
| CN107662214A (en) * | 2016-07-28 | 2018-02-06 | 天津创来智能光伏科技有限公司 | Vacuum suction track unit, vacuum suction crawler belt and crawler belt absorption robot |
| CN109333524A (en) * | 2018-11-17 | 2019-02-15 | 东莞理工学院 | A kind of shaft processing soft robot that can automatically grab material |
| CN109941765A (en) * | 2019-04-30 | 2019-06-28 | 扬力集团股份有限公司 | A kind of multiduty feeding device and charging method |
| CN210704467U (en) * | 2019-10-24 | 2020-06-09 | 林艺珊 | Vacuum chuck |
| CN111731846A (en) * | 2020-07-03 | 2020-10-02 | 温州大相贸易有限公司 | Board sucking device of board collecting and releasing machine for printed circuit board production |
-
2022
- 2022-02-18 CN CN202210149613.6A patent/CN114538089B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0373840A2 (en) * | 1988-12-10 | 1990-06-20 | Palamatic Handling Systems Limited | Vacuum lifting apparatus |
| CN106115256A (en) * | 2016-07-26 | 2016-11-16 | 浙江恒立数控科技股份有限公司 | Vacuum intaking device |
| CN107662214A (en) * | 2016-07-28 | 2018-02-06 | 天津创来智能光伏科技有限公司 | Vacuum suction track unit, vacuum suction crawler belt and crawler belt absorption robot |
| CN109333524A (en) * | 2018-11-17 | 2019-02-15 | 东莞理工学院 | A kind of shaft processing soft robot that can automatically grab material |
| CN109941765A (en) * | 2019-04-30 | 2019-06-28 | 扬力集团股份有限公司 | A kind of multiduty feeding device and charging method |
| CN210704467U (en) * | 2019-10-24 | 2020-06-09 | 林艺珊 | Vacuum chuck |
| CN111731846A (en) * | 2020-07-03 | 2020-10-02 | 温州大相贸易有限公司 | Board sucking device of board collecting and releasing machine for printed circuit board production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114538089B (en) | 2023-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104444484A (en) | Plate carrying device | |
| CN114538089A (en) | Adsorption device | |
| CN104564646A (en) | Sealing device for plunger pump and plunger pump | |
| CN102834544A (en) | A device for sealing a chamber inlet or a chamber outlet for a flexible substrate | |
| CN208651170U (en) | A kind of oily filter of air compressor | |
| CN102803665A (en) | An air motor | |
| CN109941752A (en) | A kind of handling device of the high reliablity for tempered glass production | |
| CN105455722B (en) | Adsorbent equipment and the surface processing device with the adsorbent equipment | |
| CN107149821B (en) | A kind of dedusting filtering bag cage skeleton storage device | |
| CN214844725U (en) | Bonding strength testing arrangement is used in recycled concrete processing | |
| CN211254938U (en) | Vacuum suction tool for falling part detection | |
| CN107009382A (en) | Based on hydromechanical absorption type material taking hand | |
| CN210625027U (en) | Long-life high performance type vehicle air conditioner stock solution drying bottle | |
| CN211282855U (en) | Suction tool for compensating height difference by using buffer corrugations | |
| CN207324304U (en) | The pre-filtering device of electric scroll compressor | |
| CN207686941U (en) | A kind of air compressor machine accurate filter | |
| CN206795861U (en) | A kind of air-negative-pressure absorption type material taking hand | |
| CN101162047A (en) | Highly effective mechanically-sealing apparatus | |
| CN106628402A (en) | Sealing device and method suitable for ultrahigh-pressure pressurized articles | |
| CN216199325U (en) | Vacuum generator | |
| CN215920266U (en) | Vacuum chuck with automatic opening and closing adsorption port | |
| CN213145381U (en) | Tank evacuation valve | |
| CN210814326U (en) | Air source processing device | |
| CN107906110A (en) | A kind of graphite production Acetabula device | |
| CN207861411U (en) | A kind of carrier vacuum positioning mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |