CN216789529U - Vacuum sealing pressure maintaining joint - Google Patents
Vacuum sealing pressure maintaining joint Download PDFInfo
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- CN216789529U CN216789529U CN202123410635.3U CN202123410635U CN216789529U CN 216789529 U CN216789529 U CN 216789529U CN 202123410635 U CN202123410635 U CN 202123410635U CN 216789529 U CN216789529 U CN 216789529U
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- vacuum
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- hole
- hose
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Abstract
The utility model discloses a vacuum sealing pressure maintaining joint, which comprises: a vacuum device; the fixing rod is fixedly connected with the vacuum equipment; the connecting sleeve is connected with the fixed rod in a sliding way through an adjusting structure; one side of the connecting nut is in threaded connection with the connecting sleeve; the hose connector is in threaded connection with the other side of the connecting nut; the connecting hose is detachably connected with one end of the hose joint; the vacuum pump joint is fixedly connected with the other end of the connecting hose and is used for connecting a vacuum pump; and the sealing structure is arranged at the joint of the fixed rod and the connecting sleeve. According to the vacuum sealing pressure maintaining joint provided by the utility model, when the connecting pipe or the vacuum pump needs to be replaced but the vacuum equipment needs to continuously maintain vacuum, the connecting pipe or the vacuum pump can be replaced while the sealing of the vacuum equipment is ensured, the adaptability is better, and the replacement by a user is more convenient.
Description
Technical Field
The utility model relates to the technical field of vacuum equipment, in particular to a vacuum sealing pressure maintaining joint.
Background
The vacuum technology is a technology required for establishing a physical environment lower than atmospheric pressure and carrying out process manufacturing, physical measurement, scientific experiments and the like in the environment; the vacuum technology mainly comprises four aspects of vacuum obtaining, vacuum measuring, vacuum leakage detecting and vacuum application, and in order to assist the vacuum technology, vacuum equipment is needed, the vacuum equipment is a device for generating, improving and/or maintaining vacuum, and comprises vacuum application equipment and vacuum obtaining equipment, and when the vacuum equipment is used, a vacuum pump and a connecting pipe are generally used for connecting a vacuum chamber and other devices or environments needing vacuum.
When the existing vacuum equipment is used, if the connecting pipe of the vacuum pump is damaged or aged, the connecting pipe needs to be replaced, but in the replacement, the connected vacuum equipment cannot keep a vacuum environment, and partial vacuum equipment needs to keep the vacuum environment constantly, so that the replacement of the connecting pipe brings inconvenience to a user and is not beneficial to the replacement.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a vacuum sealing pressure maintaining joint, which aims to solve the problems that when the existing vacuum equipment is used, if a connecting pipe of a vacuum pump is damaged or aged, the connecting pipe needs to be replaced, but during replacement, the connected vacuum equipment cannot maintain a vacuum environment, and part of the vacuum equipment needs to maintain the vacuum environment all the time, so that the replacement of the connecting pipe brings inconvenience to a user and is not beneficial to replacement.
In order to achieve the purpose, the utility model provides the following technical scheme:
a vacuum sealing and pressure maintaining joint, comprising:
a vacuum device; and
the fixing rod is fixedly connected with the vacuum equipment;
the connecting sleeve is connected with the fixed rod in a sliding way through an adjusting structure;
one side of the connecting nut is in threaded connection with the connecting sleeve;
the hose connector is in threaded connection with the other side of the connecting nut;
the connecting hose is detachably connected with the hose joint at one end;
the vacuum pump joint is fixedly connected with the other end of the connecting hose and is used for connecting a vacuum pump;
and the sealing structure is arranged at the joint of the fixed rod and the connecting sleeve and is used for controlling the sealing and the communication between the fixed rod and the connecting sleeve.
Preferably, the top of the hose connector is fixedly connected with a splicing pipe, the splicing pipe is positioned inside the connecting hose, and the outer surface of the splicing pipe is provided with an annular convex block.
Preferably, a gasket is arranged inside the connecting nut;
the gasket is located between the hose connector and the connecting sleeve.
Preferably, the gasket is a rubber gasket.
Preferably, the bottom end of the hose connector penetrates through the gasket and extends to the inside of the connecting sleeve;
the bottom end of the hose connector is sleeved with a first sealing ring, and the first sealing ring is located inside the connecting sleeve.
Preferably, the mediation structure includes:
the positioning nut is sleeved outside the fixing rod and is in threaded connection with the fixing rod;
the rotating sleeve is sleeved outside the fixed rod, is fixedly connected with the positioning nut and extends into the connecting sleeve;
and the limiting ring is sleeved outside the rotating sleeve and is positioned inside the connecting sleeve.
Preferably, the sealing structure includes:
the movable hole is formed in the connecting sleeve and is matched with the fixed rod;
the sealing hole is formed in the connecting sleeve, and the diameter of the sealing hole is smaller than that of the movable hole;
the connecting hole is a conical hole, is arranged in the connecting sleeve and is used for communicating the movable hole with the sealing hole;
the sealing head is fixedly connected with the fixed rod and is matched with the sealing hole;
preferably, the diameter of the sealing head is smaller than that of the fixing rod, and the sealing head and the fixing rod are both cylinders.
Preferably, a second sealing ring is sleeved outside the sealing head;
and a third sealing ring is sleeved outside the fixed rod and is positioned inside the movable hole.
Preferably, the fixing rod is internally provided with an air hole, and the air hole is communicated with the vacuum equipment and is communicated with the connecting hose sequentially through the movable hole, the connecting hole, the sealing hole and the hose joint.
Compared with the prior art, the utility model has the following beneficial effects:
according to the vacuum sealing pressure maintaining joint provided by the utility model, when the connecting pipe or the vacuum pump needs to be replaced but the vacuum equipment needs to continuously maintain vacuum, the connecting pipe or the vacuum pump can be replaced while the sealing of the vacuum equipment is ensured, the adaptability is better, and the replacement by a user is more convenient.
Drawings
FIG. 1 is a schematic structural view of a vacuum sealing and pressure maintaining joint according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1
Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.
In the figure: 10 vacuum equipment, 20 fixing rods, 21 air holes, 30 connecting sleeves, 40 adjusting structures, 41 positioning nuts, 42 rotating sleeves, 43 limiting rings, 50 connecting hoses, 51 hose connectors, 52 vacuum pump connectors, 53 first sealing rings, 60 sealing structures, 61 movable holes, 62 connecting holes, 63 sealing holes, 64 sealing heads, 65 second sealing rings, 66 third sealing rings, 70 connecting nuts and 71 gaskets.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a vacuum sealing pressure maintaining connector includes: a vacuum apparatus 10; and a fixing bar 20 fixedly connected with the vacuum apparatus 10; a connecting sleeve 30 which is slidably connected with the fixing rod 20 through an adjusting structure 40; a coupling nut 70 having one side threadedly coupled to the coupling sleeve 30; a hose connector 51 screwed to the other side of the coupling nut 70; a connection hose 50 having one end detachably connected to the hose connector 51; a vacuum pump joint 52 fixedly connected to the other end of the connection hose 50 for connecting a vacuum pump; a sealing structure 60 provided at a junction of the fixing rod 20 and the connecting sleeve 30 for controlling sealing and penetration between the fixing rod 20 and the connecting sleeve 30; the top of the hose connector 51 is fixedly connected with a splicing pipe which is positioned inside the connecting hose 50, and the outer surface of the splicing pipe is provided with an annular convex block.
When needing to be changed, drive adapter sleeve 30 and dead lever 20 through adjusting structure 40 and be close to each other, can be under seal structure 60's effect for sealed between dead lever 20 and the adapter sleeve 30, then can change connection hose 50 isotructure, can not cause the condition that the gas leakage appears in vacuum apparatus 10 department, more convenient to use person changes.
A gasket 71 is arranged inside the connecting nut 70; the gasket 71 is positioned between the hose connector 51 and the connecting sleeve 30; the gasket 71 is a rubber gasket; the bottom end of the hose connector 51 passes through the gasket 71 and extends to the inside of the connection sleeve 30; the bottom end of the hose connector 51 is sleeved with a first sealing ring 53, and the first sealing ring 53 is positioned inside the connecting sleeve 30.
The hose connector 51 can be removed from the connection nut 70 by screwing it, and vice versa.
The adjusting structure 40 comprises a positioning nut 41 which is sleeved outside the fixing rod 20 and is in threaded connection with the fixing rod 20; the rotating sleeve 42 is sleeved outside the fixing rod 20, is fixedly connected with the positioning nut 41, and extends into the connecting sleeve 30; and the limiting ring 43 is sleeved outside the rotating sleeve 42 and is positioned inside the connecting sleeve 30.
The seal structure 60 includes: the movable hole 61 is arranged in the connecting sleeve 30 and is matched with the fixed rod 20; a sealing hole 63 which is opened in the connecting sleeve 30 and has a diameter smaller than that of the movable hole 61; a connection hole 62 which is a tapered hole and is opened inside the connection sleeve 30 for communicating the movable hole 61 and the sealing hole 63; a sealing head 64 fixedly connected with the fixing rod 20 and adapted to the sealing hole 63; the diameter of the sealing head 64 is smaller than that of the fixing rod 20, and the sealing head 64 and the fixing rod 20 are both cylinders; a second sealing ring 65 is sleeved outside the sealing head 64; a third sealing ring 66 is sleeved outside the fixed rod 20, and the third sealing ring 66 is positioned inside the movable hole 61; the fixing rod 20 is provided with an air hole 21 therein, which is communicated with the vacuum apparatus 10 and is communicated with the connection hose 50 through a movable hole 61, a connection hole 62, a sealing hole 63 and a hose joint 51 in sequence.
When the replacement is needed, the positioning nut 41 is rotated, so that the positioning nut 41 can move up and down along the fixing rod 20, the rotating sleeve 42, the limiting ring 43 and the connecting sleeve 30 are sequentially driven to move up and down relative to the fixing rod 20, when the connecting sleeve 30 moves down relative to the fixing rod 20, the sealing head 62 can enter the sealing hole 63, after the sealing head 62 completely enters the sealing hole 63, the sealing hole 62 is blocked to complete the sealing, at the moment, gas cannot be exhausted through the sealing hole 62, then the structures such as the connecting hose 50, the vacuum pump connector 52, the vacuum pump, the hose connector 51 and the like can be replaced, after the replacement is completed, the positioning nut 41 is rotated reversely, so that the sealing head 64 leaves the sealing hole 63, the sealing can be released, and the operation is simple.
In summary, according to the vacuum sealing and pressure maintaining joint provided by the utility model, when the connecting pipe or the vacuum pump needs to be replaced but the vacuum equipment 10 needs to continuously maintain vacuum, the connecting pipe or the vacuum pump can be replaced while the vacuum equipment 10 is sealed, so that the adaptability is better, and the replacement by a user is more convenient.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A vacuum sealing and pressure maintaining joint, comprising:
a vacuum device (10); and
a fixing rod (20) fixedly connected with the vacuum equipment (10);
a connecting sleeve (30) which is slidably connected with the fixing rod (20) through an adjusting structure (40);
a connecting nut (70) with one side in threaded connection with the connecting sleeve (30);
a hose joint (51) which is screwed with the other side of the connecting nut (70);
a connection hose (50) having one end detachably connected to the hose connector (51);
a vacuum pump joint (52) fixedly connected with the other end of the connecting hose (50) and used for connecting a vacuum pump;
and the sealing structure (60) is arranged at the joint of the fixing rod (20) and the connecting sleeve (30) and is used for controlling the sealing and the penetration between the fixing rod (20) and the connecting sleeve (30).
2. The vacuum sealing and pressure maintaining joint as claimed in claim 1, wherein: the top of the hose connector (51) is fixedly connected with an inserting pipe, the inserting pipe is positioned inside the connecting hose (50), and the outer surface of the inserting pipe is provided with an annular convex block.
3. The vacuum sealing and pressure maintaining joint as claimed in claim 1, wherein: a gasket (71) is arranged inside the connecting nut (70);
the gasket (71) is located between the hose connector (51) and the connecting sleeve (30).
4. A vacuum sealing and pressure maintaining joint as claimed in claim 3, wherein: the gasket (71) is a rubber gasket.
5. A vacuum sealing and pressure maintaining joint as claimed in claim 3, wherein: the bottom end of the hose connector (51) penetrates through the gasket (71) and extends to the inside of the connecting sleeve (30);
the bottom end of the hose connector (51) is sleeved with a first sealing ring (53), and the first sealing ring (53) is located inside the connecting sleeve (30).
6. The vacuum sealing and pressure maintaining joint as claimed in claim 1, wherein: the adjustment structure (40) comprises:
the positioning nut (41) is sleeved outside the fixing rod (20) and is in threaded connection with the fixing rod (20);
the rotating sleeve (42) is sleeved outside the fixing rod (20), is fixedly connected with the positioning nut (41), and extends to the inside of the connecting sleeve (30);
and the limiting ring (43) is sleeved outside the rotating sleeve (42) and is positioned inside the connecting sleeve (30).
7. The vacuum sealing and pressure maintaining joint as claimed in claim 1, wherein: the sealing structure (60) includes:
the movable hole (61) is formed in the connecting sleeve (30) and is matched with the fixed rod (20);
the sealing hole (63) is formed in the connecting sleeve (30), and the diameter of the sealing hole is smaller than that of the movable hole (61);
the connecting hole (62) is a conical hole, is arranged in the connecting sleeve (30) and is used for communicating the movable hole (61) with the sealing hole (63);
and the sealing head (64) is fixedly connected with the fixing rod (20) and is matched with the sealing hole (63).
8. The vacuum sealing and pressure maintaining joint as claimed in claim 7, wherein: the diameter of the sealing head (64) is smaller than that of the fixing rod (20), and the sealing head (64) and the fixing rod (20) are both cylinders.
9. The vacuum sealing and pressure maintaining joint as claimed in claim 7, wherein: a second sealing ring (65) is sleeved outside the sealing head (64);
and a third sealing ring (66) is sleeved outside the fixed rod (20), and the third sealing ring (66) is positioned inside the movable hole (61).
10. The vacuum sealing and pressure maintaining joint as claimed in claim 7, wherein: an air hole (21) is formed in the fixing rod (20), is communicated with the vacuum equipment (10) and is communicated with the connecting hose (50) sequentially through the movable hole (61), the connecting hole (62), the sealing hole (63) and the hose joint (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123410635.3U CN216789529U (en) | 2021-12-30 | 2021-12-30 | Vacuum sealing pressure maintaining joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123410635.3U CN216789529U (en) | 2021-12-30 | 2021-12-30 | Vacuum sealing pressure maintaining joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216789529U true CN216789529U (en) | 2022-06-21 |
Family
ID=82011610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123410635.3U Active CN216789529U (en) | 2021-12-30 | 2021-12-30 | Vacuum sealing pressure maintaining joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216789529U (en) |
-
2021
- 2021-12-30 CN CN202123410635.3U patent/CN216789529U/en active Active
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