CN216806529U - Sealed effectual save pipe - Google Patents
Sealed effectual save pipe Download PDFInfo
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- CN216806529U CN216806529U CN202220278786.3U CN202220278786U CN216806529U CN 216806529 U CN216806529 U CN 216806529U CN 202220278786 U CN202220278786 U CN 202220278786U CN 216806529 U CN216806529 U CN 216806529U
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Abstract
The utility model belongs to the technical field of preservation tubes, and particularly relates to a preservation tube with a good sealing effect, which comprises a preservation tube body, a fixing ring, a round cover and a sealing mechanism, wherein the fixing ring is arranged on the preservation tube body; the fixing ring is arranged on the outer wall of the top end of the preservation pipe body and is in rotating fit with the outer wall of the top end of the preservation pipe body; the round cover is arranged at the top of the fixing ring and is positioned at the top of the opening of the preservation pipe body; the sealing mechanism is arranged on the inner wall of the bottom of the round cover and is inserted into the top end of the storage tube body; the sealing mechanism comprises a sealing block, an arc-shaped plate, a sliding rod, a sealing ring and a first spring; the sealing block is fixedly connected to the inner wall of the bottom of the round cover and is inserted into the top end of the storage tube body; a first square groove is formed in the inner wall of the end part of the sealing block; through setting up sealing mechanism, will preserve the shutoff of tub body headspace, and then help improving and preserve sealed effect between tub body and solid fixed ring and the dome, improved the availability factor of preserving the tub body.
Description
Technical Field
The utility model belongs to the technical field of storage tubes, and particularly relates to a storage tube with a good sealing effect.
Background
The material of preservation pipe is the polymer polypropylene material usually, and common colour is transparent, and it has low temperature resistant characteristics, can be applicable to the inside use of depositing of refrigerator.
The preservation tube is applied to the medical research, pharmacy, food industry and cytology research field, can deposit liquid and precious sample through the preservation tube, and especially liquid, it is higher to preserve the leakproofness requirement of preservation tube in the in-process.
When preserving the pipe among the prior art and sealing up the liquid sample, preserve the pipe open-top junction and only be connected with the dome through the screw thread, and after the preservation pipe produces and emptys, cause the inside liquid of preservation pipe to reveal from the junction gap easily, and then cause the pollution of depositing the environment to and the waste of liquid sample, reduced the availability factor of preservation pipe.
SUMMERY OF THE UTILITY MODEL
In order to make up for the defects of the prior art and solve the problems that when the preservation tube is used for sealing and preserving a liquid sample, the connection part of the top opening of the preservation tube is only connected with the round cover through threads, and when the preservation tube is toppled, liquid in the preservation tube is easy to leak from a gap at the connection part, so that the preservation environment is polluted, the liquid sample is wasted, and the use efficiency of the preservation tube is reduced, the preservation tube with a good sealing effect is provided.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the preservation tube with good sealing effect comprises a preservation tube body, a fixing ring, a round cover and a sealing mechanism; the fixing ring is arranged on the outer wall of the top end of the preservation pipe body and is in rotating fit with the outer wall of the top end of the preservation pipe body; the round cover is arranged at the top of the fixing ring and is positioned at the top of the opening of the preservation pipe body; the sealing mechanism is arranged on the inner wall of the bottom of the round cover and is inserted into the top end of the storage tube body; the sealing mechanism comprises a sealing block, an arc-shaped plate, a sliding rod, a sealing ring and a first spring; the sealing block is fixedly connected to the inner wall of the bottom of the round cover and is inserted into the top end of the storage tube body; a first square groove is formed in the inner wall of the end part of the sealing block; two ends of the arc-shaped plate are fixedly connected to the inner wall of the first square groove respectively; one end of the sliding rod penetrates through the inner part of the arc-shaped plate in a sliding manner; the sealing ring is fixedly connected to the end part of the sliding rod, and the outer wall of the sealing ring is in contact with the inner wall of the top end of the preservation pipe body; a limiting ring is arranged on the outer wall of the other end of the sliding rod; one end of the first spring is fixedly connected to the bottom of the limiting ring, and the other end of the first spring is fixedly connected to the side wall of the first square groove; through setting up sealing mechanism, will preserve the shutoff of pipe body headspace, and then help improving between preservation pipe body and solid fixed ring and the dome sealed effect, improved the availability factor of preservation pipe body.
Preferably, the bottom of the sealing block is provided with a sealing gasket; the contour shape of the sealing gasket is consistent with that of the sealing block; the outer wall of the sealing gasket is contacted with the inner wall of the preservation pipe body; the sealing gasket is matched with the sealing ring, so that the sealing effect is improved.
Preferably, the inner wall of the top of the fixing ring is symmetrically provided with mounting grooves; a second square groove is formed in the inner wall of the mounting groove; a plug-in assembly is arranged in the second square groove; the plug-in assembly comprises a plug rod, a support, a clamping block and a second spring; the top of the inserted link is fixedly connected with the bottom of the round cover; the bottom end of the inserted link is inserted in the mounting groove; the brackets are symmetrically and fixedly connected to the inner wall of the second square groove; the bottom ends of the clamping blocks are connected to the outer walls of the two brackets in a sliding manner; the side wall of the inserted bar is provided with a groove; the clamping block is inserted in the groove; one end of the second spring is fixedly connected to the bottom of the clamping block, and the other end of the second spring is fixedly connected to the side wall of the second square groove; through setting up plug-in components, be convenient for connect the dome and solid fixed ring fixedly.
Preferably, the outer wall of the top end of the preservation pipe body is provided with a lifting assembly; the lifting component is fixedly connected with the inner wall of the fixing ring; the lifting assembly comprises a fixed block, an upright post, a sliding block, a third spring and a threaded ring; the fixed block is rotatably connected to the outer wall of the top end of the preservation pipe body; the upright posts are arranged inside the fixed block; the sliding block is connected to the outer wall of the upright post in a sliding manner; the side wall of the sliding block is fixedly connected with the inner wall of the fixing ring; the third spring is sleeved on the outer wall of the top end of the upright post; one end of the third spring is fixedly connected to the top of the sliding block, and the other end of the third spring is fixedly connected to the side wall of the fixed block; the threaded ring is fixedly connected to the outer wall of the top end of the preservation pipe body and is positioned below the fixing block; the threaded ring is in threaded connection fit with the inner wall of the bottom end of the fixing ring; through setting up lifting unit, be convenient for carry out fixed mounting with the dome through solid fixed ring and save the pipe body.
Preferably, a plurality of groups of the first square groove, the arc-shaped plate, the sliding rod and the first spring are arranged on the inner wall of the sealing block; four groups of upright posts, sliding blocks and third springs are arranged inside the fixed blocks; it is helpful to improve the sealing effect.
Preferably, the shapes of the end parts of the inserted rods and the clamping blocks are arc; the round cover and the fixing ring can be conveniently and quickly connected and installed.
The utility model has the following beneficial effects:
1. according to the utility model, the sealing mechanism is arranged, the round cover is arranged at the top of the preservation pipe body, the sealing block is inserted into the top end of the preservation pipe body, after the outer wall of the sealing ring arranged on the outer side of the sealing block is contacted with the inner wall of the preservation pipe body, the sliding rod is matched with the arc-shaped plate and the limiting ring to slide due to the extrusion of the sealing ring, the first spring is extruded at the same time, after the round cover and the fixing ring are installed, the sliding rod drives the sealing ring to reset by utilizing the restoring effect of the first spring, and the top space of the preservation pipe body is blocked by matching with the sealing gasket, so that the sealing effect between the preservation pipe body and the fixing ring as well as between the round cover is improved, and the use efficiency of the preservation pipe body is improved.
2. According to the utility model, through arranging the lifting assembly, the inserted bar fixedly connected with the bottom of the preservation pipe body is inserted into the mounting groove and fixed, then the fixing ring is pressed downwards by the round cover, the inner wall of the fixing ring is fixedly connected with the side wall of the sliding block, and the fixing block is rotatably connected with the outer wall of the top end of the preservation pipe body, so that the fixing ring can rotate around the outer wall of the top end of the preservation pipe body along with the fixing block, when the fixing ring is subjected to downward pressure, the sliding block fixedly connected slides downwards on the outer wall of the stand column, and the third spring is stretched, after the inner wall of the bottom end of the fixing ring is contacted with the threaded ring, the fixing ring is in threaded connection with the threaded ring under the rotating action, so that the purpose of fixing the round cover on the top of the preservation pipe body is achieved, the sealing property is improved, and the practicability of the device is improved.
Drawings
The utility model will be further explained with reference to the drawings.
Fig. 1 is a perspective view of a main structure of the first embodiment;
FIG. 2 is a front cross-sectional view of the present embodiment;
FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present embodiment;
FIG. 4 is an enlarged view of the structure B in FIG. 2 according to the present embodiment;
fig. 5 is a perspective view of a main body of a storage tube according to a second embodiment.
In the figure: 1. preserving the tube body; 11. a first square groove; 12. a second square groove; 2. a fixing ring; 3. a dome; 41. a sealing block; 42. an arc-shaped plate; 43. a slide bar; 44. a seal ring; 45. a first spring; 5. a gasket; 61. inserting a rod; 63. a support; 64. a clamping block; 65. a second spring; 71. a fixed block; 72. a column; 73. a slider; 74. a third spring; 75. a threaded ring; 8. and (7) a rubber pad.
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.
Example one
As shown in fig. 1 to 4, the preservation tube with good sealing effect of the utility model comprises a preservation tube body 1, a fixing ring 2, a round cover 3 and a sealing mechanism; the fixing ring 2 is arranged on the outer wall of the top end of the preservation tube body 1 and is in rotating fit with the outer wall of the top end of the preservation tube body 1; the round cover 3 is arranged at the top of the fixing ring 2 and is positioned at the top of the opening of the preservation pipe body 1; the sealing mechanism is arranged on the inner wall of the bottom of the round cover 3 and is inserted into the top end of the preservation pipe body 1; the sealing mechanism comprises a sealing block 41, an arc-shaped plate 42, a sliding rod 43, a sealing ring 44 and a first spring 45; the sealing block 41 is fixedly connected to the inner wall of the bottom of the round cover 3 and is inserted into the top end of the storage tube body 1; a first square groove 11 is formed in the inner wall of the end part of the sealing block 41; two ends of the arc-shaped plate 42 are fixedly connected to the inner wall of the first square groove 11 respectively; one end of the sliding rod 43 penetrates through the arc-shaped plate 42 in a sliding manner; the sealing ring 44 is fixedly connected at the end part of the sliding rod 43, and the outer wall of the sealing ring is contacted with the inner wall of the top end of the preservation tube body 1; a limiting ring is arranged on the outer wall of the other end of the sliding rod 43; one end of the first spring 45 is fixedly connected to the bottom of the limiting ring, and the other end of the first spring is fixedly connected to the side wall of the first square groove 11; the bottom of the sealing block 41 is provided with a sealing gasket 5; the contour shape of the sealing gasket 5 is consistent with that of the sealing block 41; the outer wall of the sealing gasket 5 is contacted with the inner wall of the preservation pipe body 1; during operation, install dome 3 at preservation pipe body 1 top, make sealed piece 41 insert inside preservation pipe body 1 top, sealing washer 44 outer wall and the preservation pipe body 1 inner wall contact back that set up in the sealed piece 41 outside, because sealing washer 44 receives the extrusion can make slide bar 43 cooperation arc 42 and spacing ring slide, extrude first spring 45 simultaneously, treat dome 3 and solid fixed ring 2 completion installation back, utilize the return action of first spring 45, make slide bar 43 take sealing washer 44 to reset, and the sealed 5 shutoff of preservation pipe body 1 headspace of cooperation packing, and then help improving sealed effect between preservation pipe body 1 and solid fixed ring 2 and the dome 3, the availability factor of preservation pipe body 1 has been improved.
The inner wall of the top of the fixing ring 2 is symmetrically provided with mounting grooves; a second square groove 12 is arranged on the inner wall of the mounting groove; a plug-in component is arranged in the second square groove 12; the plug-in assembly comprises a plug rod 61, a support 63, a clamping block 64 and a second spring 65; the top of the inserted link 61 is fixedly connected with the bottom of the round cover 3; the bottom end of the inserting rod 61 is inserted into the mounting groove; the brackets 63 are symmetrically and fixedly connected on the inner wall of the second square groove 12; the bottom ends of the clamping blocks 64 are connected to the outer walls of the two brackets 63 in a sliding manner; the side wall of the insert rod 61 is provided with a groove; the clamping block 64 is inserted in the groove; one end of the second spring 65 is fixedly connected to the bottom of the clamping block 64, and the other end of the second spring is fixedly connected to the side wall of the second square groove 12; the during operation, inside inserting the inserted bar 61 into the mounting groove, make the inserted bar 61 outer wall and the contact of joint piece 64 tip and extrude it, receive the extrusion back when joint piece 64, can make the bottom slide at two support 63 outer walls, extrude second spring 65 simultaneously, again because the inserted bar 61 lateral wall is provided with the recess, treat inserted bar 61 bottom and mounting groove bottom inner wall contact back, under second spring 65 answer, make joint piece 64 tip peg graft inside the recess, and then accomplish the fixed to inserted bar 61, make dome 3 be connected inseparabler firm with solid fixed ring 2, help improving sealed effect.
The outer wall of the top end of the preservation pipe body 1 is provided with a lifting assembly; the lifting component is fixedly connected with the inner wall of the fixing ring 2; the lifting component comprises a fixed block 71, a vertical column 72, a sliding block 73, a third spring 74 and a threaded ring 75; the fixed block 71 is rotatably connected to the outer wall of the top end of the preservation pipe body 1; the upright post 72 is arranged inside the fixed block 71; the sliding block 73 is connected to the outer wall of the upright post 72 in a sliding manner; the side wall of the sliding block 73 is fixedly connected with the inner wall of the fixing ring 2; the third spring 74 is sleeved on the outer wall of the top end of the upright post 72; one end of the third spring 74 is fixedly connected to the top of the sliding block 73, and the other end of the third spring is fixedly connected to the side wall of the fixed block 71; the threaded ring 75 is fixedly connected to the outer wall of the top end of the preservation pipe body 1 and is positioned below the fixing block 71; the threaded ring 75 is in threaded connection and matching with the inner wall of the bottom end of the fixing ring 2; when the round cover 3 is required to be connected and fixed with the preservation tube body 1 through the fixing ring 2 during operation, the inserting rod 61 fixedly connected with the bottom of the preservation tube body 1 is inserted into the installation groove and fixed, then the fixing ring 2 is pressed down by the round cover 3, because the inner wall of the fixing ring 2 is fixedly connected with the side wall of the sliding block 73, and the fixing block 71 is rotatably connected with the outer wall of the top end of the preservation tube body 1, the fixing ring 2 can rotate around the outer wall of the top end of the preservation tube body 1 along with the fixing block 71, when the fixing ring 2 is pressed down, the sliding block 73 fixedly connected slides downwards on the outer wall of the upright post 72, and the third spring 74 is stretched at the same time, when the inner wall of the bottom end of the fixing ring 2 is contacted with the threaded ring 75, under the rotating action, the fixing ring 2 is in threaded connection with the threaded ring 75, so as to fix the round cover 3 on the top of the preservation tube body 1, and improve the sealing performance, contributing to improving the practicability of the device.
A plurality of groups of the first square groove 11, the arc-shaped plate 42, the sliding rod 43 and the first spring 45 are arranged on the inner wall of the sealing block 41; four groups of upright posts 72, sliding blocks 73 and third springs 74 are arranged inside the fixed block 71; the end part of the inserted rod 61 and the end part of the clamping block 64 are both arc-shaped; during operation utilizes first square groove 11, arc 42, slide bar 43 and first spring 45 to play better support fixed action to sealing washer 44, and then makes sealing washer 44 outer wall closely laminate with the preservation pipe body 1 inner wall to help improving sealed effect, utilizes the tip shape to cooperate for curved inserted bar 61 and joint piece 64, and then is convenient for accomplish the fixed connection of dome 3 and solid fixed ring 2, has improved the availability factor of device.
Example two
Referring to fig. 5, in a first comparative example, as another embodiment of the present invention, a rubber pad 8 is disposed on an outer wall of the dome 3; during operation, through setting up rubber pad 8, when user's hand is twisted round lid 3, can play skid-proof effect to help improving the device and use the convenience.
The working principle is as follows: when the device is used, the round cover 3 is arranged at the top of the preservation tube body 1, the sealing block 41 is inserted into the top end of the preservation tube body 1, after the outer wall of the sealing ring 44 arranged on the outer side of the sealing block 41 is contacted with the inner wall of the preservation tube body 1, the sliding rod 43 is matched with the arc-shaped plate 42 and the limiting ring to slide due to the extrusion of the sealing ring 44, the first spring 45 is extruded at the same time, after the round cover 3 and the fixing ring 2 are installed, the sliding rod 43 drives the sealing ring 44 to reset by utilizing the restoring function of the first spring 45, and the top space of the preservation tube body 1 is blocked by matching with the sealing gasket 5, so that the sealing effect between the preservation tube body 1 and the fixing ring 2 as well as between the round cover 3 is improved, the use efficiency of the preservation tube body 1 is improved, the inserting rod 61 is inserted into the installation groove, the outer wall of the inserting rod 61 is contacted with the end part of the clamping block 64 and extrudes the clamping block, when the clamping block 64 is extruded, the bottom end slides on the outer walls of the two supports 63, the second spring 65 is extruded at the same time, the side wall of the insertion rod 61 is provided with a groove, after the bottom of the insertion rod 61 is contacted with the inner wall of the bottom of the installation groove, the end part of the clamping block 64 is inserted into the groove under the restoring action of the second spring 65, so that the insertion rod 61 is fixed, the round cover 3 is connected with the fixing ring 2 more tightly and firmly, then the round cover 3 is used for pressing down the fixing ring 2, because the inner wall of the fixing ring 2 is fixedly connected with the side wall of the sliding block 73, and the fixing block 71 is rotatably connected with the outer wall of the top end of the preservation tube body 1, so that the fixing ring 2 can rotate around the outer wall of the top end of the preservation tube body 1 along with the fixing block 71, when the fixing ring 2 is pressed down, the sliding block 73 fixedly connected slides down on the outer wall of the stand 72, and stretches the third spring 74 at the same time, after 2 bottom inner walls of solid fixed ring contact with threaded ring 75, under the rotation effect for gu fixed ring 2 accomplishes threaded connection with threaded ring 75, and then accomplish and fix the purpose at 1 top of preservation pipe body with dome 3, when improving the leakproofness, help improving the practicality of device.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.
Claims (6)
1. The utility model provides a sealed effectual save pipe which characterized in that: comprises a preservation pipe body (1), a fixing ring (2), a round cover (3) and a sealing mechanism; the fixing ring (2) is arranged on the outer wall of the top end of the preservation pipe body (1) and is in rotating fit with the outer wall of the top end of the preservation pipe body (1); the round cover (3) is arranged at the top of the fixing ring (2) and is positioned at the top of the opening of the preservation pipe body (1); the sealing mechanism is arranged on the inner wall of the bottom of the round cover (3) and is inserted into the top end of the storage tube body (1);
the sealing mechanism comprises a sealing block (41), an arc-shaped plate (42), a sliding rod (43), a sealing ring (44) and a first spring (45); the sealing block (41) is fixedly connected to the inner wall of the bottom of the round cover (3) and is inserted into the top end of the storage tube body (1); a first square groove (11) is formed in the inner wall of the end part of the sealing block (41); two ends of the arc-shaped plate (42) are fixedly connected to the inner wall of the first square groove (11) respectively; one end of the sliding rod (43) penetrates through the arc-shaped plate (42) in a sliding manner; the sealing ring (44) is fixedly connected to the end part of the sliding rod (43), and the outer wall of the sealing ring is contacted with the inner wall of the top end of the preservation tube body (1); the outer wall of the other end of the sliding rod (43) is provided with a limiting ring; one end of the first spring (45) is fixedly connected to the bottom of the limiting ring, and the other end of the first spring is fixedly connected to the side wall of the first square groove (11).
2. The preservation tube with good sealing effect as claimed in claim 1, wherein: the bottom of the sealing block (41) is provided with a sealing gasket (5); the contour shape of the sealing gasket (5) is consistent with that of the sealing block (41); the outer wall of the sealing gasket (5) is contacted with the inner wall of the preservation pipe body (1).
3. The preservation tube with good sealing effect as claimed in claim 2, wherein: the inner wall of the top of the fixing ring (2) is symmetrically provided with mounting grooves; a second square groove (12) is arranged on the inner wall of the mounting groove; a plug-in assembly is arranged in the second square groove (12); the plug-in assembly comprises a plug rod (61), a support (63), a clamping block (64) and a second spring (65); the top of the inserted rod (61) is fixedly connected to the bottom of the round cover (3); the bottom end of the inserted bar (61) is inserted into the mounting groove; the brackets (63) are symmetrically and fixedly connected on the inner wall of the second square groove (12); the bottom ends of the clamping blocks (64) are connected to the outer walls of the two brackets (63) in a sliding manner; the side wall of the inserted bar (61) is provided with a groove; the clamping block (64) is inserted into the groove; one end of the second spring (65) is fixedly connected to the bottom of the clamping block (64), and the other end of the second spring is fixedly connected to the side wall of the second square groove (12).
4. A containment tube as claimed in claim 3, wherein: the outer wall of the top end of the preservation pipe body (1) is provided with a lifting assembly; the lifting component is fixedly connected with the inner wall of the fixing ring (2); the lifting assembly comprises a fixed block (71), a vertical column (72), a sliding block (73), a third spring (74) and a threaded ring (75); the fixed block (71) is rotatably connected to the outer wall of the top end of the preservation pipe body (1); the upright post (72) is arranged inside the fixed block (71); the sliding block (73) is connected to the outer wall of the upright post (72) in a sliding manner; the side wall of the sliding block (73) is fixedly connected with the inner wall of the fixed ring (2); the third spring (74) is sleeved on the outer wall of the top end of the upright post (72); one end of the third spring (74) is fixedly connected to the top of the sliding block (73), and the other end of the third spring is fixedly connected to the side wall of the fixed block (71); the threaded ring (75) is fixedly connected to the outer wall of the top end of the preservation pipe body (1) and is positioned below the fixing block (71); the threaded ring (75) is in threaded connection fit with the inner wall of the bottom end of the fixing ring (2).
5. The preservation tube with good sealing effect as claimed in claim 4, wherein: a plurality of groups of the first square groove (11), the arc-shaped plate (42), the sliding rod (43) and the first spring (45) are arranged on the inner wall of the sealing block (41); four groups of upright columns (72), sliding blocks (73) and third springs (74) are arranged inside the fixed block (71).
6. The preservation tube with good sealing effect as claimed in claim 5, wherein: the end part shape of the inserted rod (61) and the end part shape of the clamping block (64) are both arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220278786.3U CN216806529U (en) | 2022-02-10 | 2022-02-10 | Sealed effectual save pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220278786.3U CN216806529U (en) | 2022-02-10 | 2022-02-10 | Sealed effectual save pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216806529U true CN216806529U (en) | 2022-06-24 |
Family
ID=82042086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220278786.3U Active CN216806529U (en) | 2022-02-10 | 2022-02-10 | Sealed effectual save pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216806529U (en) |
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2022
- 2022-02-10 CN CN202220278786.3U patent/CN216806529U/en active Active
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