CN115874251A - Connecting mechanism suitable for sealing connection - Google Patents
Connecting mechanism suitable for sealing connection Download PDFInfo
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- CN115874251A CN115874251A CN202211729667.6A CN202211729667A CN115874251A CN 115874251 A CN115874251 A CN 115874251A CN 202211729667 A CN202211729667 A CN 202211729667A CN 115874251 A CN115874251 A CN 115874251A
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- 238000007789 sealing Methods 0.000 title claims abstract description 173
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 4
- 238000010168 coupling process Methods 0.000 claims 4
- 238000005859 coupling reaction Methods 0.000 claims 4
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 238000009713 electroplating Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention relates to the technical field of mechanical seal, and discloses a connecting mechanism suitable for sealing connection, which comprises a frame, a moving frame, a driving mechanism, a first sealing element, a second sealing element and a connecting piece, wherein the moving frame is arranged on the frame; actuating mechanism connects the frame and removes the frame, actuating mechanism is used for the drive to remove the frame and removes along the first direction for the frame, remove the frame for when removing can to the connecting piece exerts effort F in the second direction, the second direction with an contained angle is formed to the first direction, the connecting piece wears to locate first sealing member with between the second sealing member, just the connecting piece receives effort F and with remove the common centre gripping of frame first sealing member with the second sealing member, in order to seal first sealing member with the gap between the second sealing member. This application mainly solves and has the higher and relatively poor technical problem of sealing reliability of the degree of difficulty of installing and removing when current sealing connection mechanism is used for splicing two cylinder bodies simultaneously.
Description
Technical Field
The invention relates to the technical field of mechanical sealing, in particular to a connecting mechanism suitable for sealing connection.
Background
At present, VCP electroplating equipment which is universal in the industry is improved and optimized for a long time, the technology is developed very mature, a groove cylinder of the VCP electroplating equipment has the characteristic of large volume, and in order to save cost, the groove cylinder is designed to be formed by sequentially splicing a plurality of sections of cylinder bodies, and the sectional design of the groove cylinder can bring the effects of easy assembly, easy disassembly and easy transportation. Particularly, in the prior art, a plurality of screws penetrate through respective flanges of two adjacent cylinders respectively to splice the two cylinders into a whole, but the space in a machine table is relatively limited, so that the difficulty of mounting or dismounting the screws at the bottom of the flanges is extremely high, the screws at the bottom cannot be guaranteed to be successfully locked in the limited space, and if the screws are not locked, the problem of liquid leakage exists between the two cylinders.
Disclosure of Invention
The invention aims to provide a connecting mechanism for sealing connection, which mainly solves the technical problems of high assembling and disassembling difficulty and poor sealing reliability existing in the existing sealing connecting mechanism when two cylinder bodies are spliced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a connecting mechanism suitable for sealing connection comprises a frame, a moving frame, a driving mechanism, a first sealing element, a second sealing element and a connecting element;
the driving mechanism is connected with the frame and the moving frame, the driving mechanism is used for driving the moving frame to move along a first direction relative to the frame, the moving frame can apply an acting force F to the connecting piece in a second direction when moving relative to the frame, an included angle is formed between the second direction and the first direction, the connecting piece is arranged between the first sealing piece and the second sealing piece in a penetrating mode, and the connecting piece is clamped by the acting force F and the moving frame together with the first sealing piece and the second sealing piece so as to seal a gap between the first sealing piece and the second sealing piece.
In one embodiment, the connecting piece comprises a main body and a head part which are connected, wherein a step surface is arranged at one end, facing the main body, of the head part, an abutting surface is arranged at one surface, facing away from the second sealing element, of the first sealing element, the main body is arranged between the first sealing element and the second sealing element in a penetrating mode and is abutted to the abutting surface by the acting force F, and the head part and the moving frame clamp the first sealing element and the second sealing element together.
In one embodiment, a first inclined surface is arranged on the movable frame, a second inclined surface matched and abutted with the first inclined surface is arranged on the main body, and the vertical direction of the first inclined surface is the second direction.
In one embodiment, the shape of the head is a special shape, a groove is formed in a surface, opposite to the second sealing element, of the first sealing element, the shape of the groove is matched with the shape of the head, the head is embedded into the groove, and the bottom of the groove is the abutting surface.
In one embodiment, the movable frame is provided with an avoidance channel at a position below the first inclined plane, the connecting piece extends into the avoidance channel, the movable frame is provided with an assembly and disassembly channel penetrating upwards at a position adjacent to the first inclined plane, and the width of the assembly and disassembly channel is larger than the appearance of the main body and is communicated with the avoidance channel.
In one embodiment, the first sealing element and the second sealing element each include a bottom sealing portion and a side sealing portion extending upward relative to the bottom sealing portion, the number of the connecting members is plural, the plurality of the connecting members are each inserted between the bottom sealing portion of the first sealing element and the bottom sealing portion of the second sealing element, and the movable frame and the plurality of the connecting members jointly clamp the bottom sealing portion of the first sealing element and the bottom sealing portion of the second sealing element.
In one embodiment, the driving mechanism includes two driving assemblies, the two driving assemblies are respectively disposed at two ends of the moving frame and are both connected to the moving frame, and a connection line of the two driving assemblies is parallel to the first direction and is used for driving the moving frame to move along the first direction together.
In one embodiment, the driving assembly includes a screw rod and a lock nut, the screw rod is in threaded connection with the movable frame and is used for driving the movable frame to move relative to the frame, and the lock nut is in threaded connection with the screw rod and is used for limiting the screw rod on the frame.
In one embodiment, the frame is configured to limit movement of the first and second seals in a first direction.
In one embodiment, a seal strip is disposed between the first seal and the second seal.
Compared with the prior art, the invention has the following beneficial effects:
this technical scheme's first sealing member and second sealing member are equivalent to two sections cylinder bodies that need sealing connection, this technical scheme only needs the control of operation actuating mechanism to remove the removal of putting up along first direction just enables the connecting piece and removes the first sealing member of the common centre gripping of frame and second sealing member, even make the gap between first sealing member and the second sealing member that can seal fast, this technical scheme has the advantage of installing and removing simply and sealing reliability is higher, can use the sealed position of two sections cylinder body bottoms, adopt this technical scheme, the bottom of cylinder body is gone to the mode that the operating personnel need not adopt the many screws of fastening in the limited space in cylinder body bottom.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a connection mechanism suitable for sealing connection according to an embodiment of the present application;
FIG. 2 is an exploded view of a connection mechanism suitable for use in a sealed connection according to an embodiment of the present disclosure;
FIG. 3 is an exploded view of a connection mechanism suitable for sealing connection according to an embodiment of the present disclosure at another angle;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
FIG. 5 is a partial enlarged view of the portion B in FIG. 1;
FIG. 6 is an enlarged view of a portion of FIG. 3 at C;
fig. 7 is a schematic structural diagram of two sections of cylinders spliced together according to the embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
10. a frame; 20. a movable frame; 201. a first inclined plane; 202. avoiding the channel; 203. assembling and disassembling the channel;
30. a drive mechanism; 301. a drive assembly; 3011. a screw; 3012. locking the nut;
40. a first seal member; 401. a first hole site; 402. an abutting surface; 403. a groove; 41. a bottom layer sealing part; 42. a side sealing part;
50. a second seal member; 501. a second hole site; 502. a first seal groove; 503. a second seal groove; 504. a third seal groove;
60. a connecting member; 601. a main body; 6011. a second inclined plane; 602. a head portion; 6021. a step surface;
70. a cylinder body.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be considered limiting to the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 6, the present embodiment provides a connecting mechanism suitable for sealing connection, which includes a frame 10, a moving frame 20, a driving mechanism 30, a first sealing element 40, a second sealing element 50, and a plurality of connecting elements 60.
Referring to fig. 7, the first sealing member 40 and the second sealing member 50 correspond to flanges on the two cylinder blocks 70, and when the gap between the first sealing member 40 and the second sealing member 50 is sealed, the two cylinder blocks 70 are sealed by splicing. Referring to fig. 2, the first sealing member 40 and the second sealing member 50 each include a bottom sealing portion 41 and two side sealing portions 42 connected to each other, and the two side sealing portions 42 are respectively disposed at two sides of the bottom sealing portion 41, so that the first sealing member 40 and the second sealing member 50 form a U-shaped structure, and the U-shaped structure is designed to allow the internal liquids of the two sections of the cylinder 70 to be communicated with each other. Specifically, both the side sealing portions 42 of the first sealing member 40 and the second sealing member 50 can be sealed by conventional screw fastening, and the fastening operation at the side position is not limited by the space, but the bottom sealing portion 41 is at the bottom position, so that the worker is limited by the space during the assembly and disassembly, and in the present embodiment, the bottom sealing portion 41 of the first sealing member 40 and the bottom sealing portion 41 of the second sealing member 50 are pressed against each other by the plurality of connecting members 60 at the same time to seal the gap between the bottom sealing portion 41 of the first sealing member 40 and the bottom sealing portion 41 of the second sealing member 50.
Referring to fig. 1 to 6, the connecting member 60 includes a main body 601 and a head 602 connected to each other, a first inclined surface 201 is disposed on the moving frame 20, a second inclined surface 6011 is disposed on the main body 601, a step surface 6021 is disposed at an end of the head 602 facing the main body 601, a first hole 401 is disposed on the bottom sealing portion 41 of the first sealing member 40, a second hole 501 is disposed on the bottom sealing portion 41 of the second sealing member 50, the main body 601 sequentially penetrates through the first hole 401 and the second hole 501, and an abutting surface 402 is disposed on a side of the first sealing member 40 facing away from the second sealing member 50. And a driving mechanism 30 connects the frame 10 and the moving frame 20, the driving mechanism 30 being used for driving the moving frame 20 to move in a first direction (i.e., the X-axis direction shown in fig. 1 to 4) relative to the frame 10. In addition to the frame 10 being used to mount the drive mechanism 30, the frame 10 is also used to limit the movement of the first and second seals 40, 50 in the first direction so that the first and second seals 40, 50 can only move toward or away from the moving rack 20. As shown in fig. 4, the moving rack 20 applies a force F to the connecting members 60 in the second direction (the direction perpendicular to the first inclined surface 201), as can be seen from fig. 4, the second direction forms an angle with the first direction, the angle is not 0 ° nor 90 °, when the moving rack 20 moves in the first direction, the first inclined surface 201 of the moving rack 20 presses the second inclined surfaces 6011 of all the connecting members 60, and finally the step surfaces 6021 of all the connecting members 60 abut against the abutting surface 402 of the first sealing member 40, and the moving rack 20 and the heads 602 of the plurality of connecting members 60 clamp the first sealing member 40 and the second sealing member 50 together to seal the gap between the first sealing member 40 and the second sealing member 50.
Further, as the moving frame 20 moves in the first direction (i.e., the X-axis direction shown in fig. 1 to 4), the force with which the moving frame 20 and the plurality of connecting members 60 clamp the first and second sealing members 40 and 50 is increased. In addition, in the present embodiment, only by controlling the moving frame 20 to move in the first direction, the bottom sealing portion 41 of the first sealing member 40 and the bottom sealing portion 41 of the second sealing member 50 can be rapidly pressed against each other to achieve the sealing purpose, without locking multiple screws on the bottom sealing portion 41 in sequence, so that the present invention has the advantages of easy assembly and disassembly and high reliability of sealing.
Referring to fig. 6, in order to ensure that the connecting member 60 does not rotate with respect to the first sealing member 40 when receiving the acting force F, in the embodiment, a groove 403 is formed on a surface of the first sealing member 40 facing away from the second sealing member 50, and the shape of the groove 403 is designed to be a special shape, that is, the shape of the groove 403 is not circular. In the present embodiment, the shape of the head 602 of the connector 60 is also designed to be a profile corresponding to the shape of the groove 403, and after the assembly is completed, the head 602 of the connector 60 is inserted into the groove 403 and abuts against the groove bottom of the groove 403, where the groove bottom of the groove 403 is the abutting surface 402.
Referring to fig. 1 and 4, the moving frame 20 is provided with an avoiding channel 202 at a position below the first inclined surface 201, the main body 601 of the connecting member 60 extends into the avoiding channel 202, and the avoiding channel 202 is used for avoiding the connecting member 60, so that the first inclined surface 201 on the moving frame 20 can press the second inclined surface 6011 on the connecting member 60 when the moving frame 20 moves in the X-axis direction, and the avoiding channel 202 can reduce the heights of the first sealing member 40 and the second sealing member 50, further reduce the height of the cylinder 70 after installation, and reduce the volume of the final VCP electroplating apparatus. The movable frame 20 is further provided with an attaching/detaching passage 203 extending upward at a position adjacent to the first inclined surface 201, the attaching/detaching passage 203 has a width larger than an outer dimension of the main body 601 of the link 60, and the attaching/detaching passage 203 and the escape passage 202 communicate with each other.
Referring to fig. 1 and 5, the driving mechanism 30 includes two driving assemblies 301, the two driving assemblies 301 are respectively connected to two ends of the moving frame 20, a connecting line of the two driving assemblies 301 is parallel to a first direction (i.e., an X-axis direction), and the two driving assemblies 301 drive the moving frame 20 to move along the first direction together. Specifically, the driving assembly 301 includes a screw 3011 and a lock nut 3012, the screw 3011 is screwed to the moving frame 20, and the lock nut 3012 is screwed to the screw 3011 and is used to constrain the screw 3011 to the frame 10. When the movable frame 20 is moved to the proper position, the movable frame 20 and the plurality of connecting members 60 together clamp the first sealing member 40 and the second sealing member 50, and at this time, the lock nuts 3012 are tightened again, so that the screw 3011 cannot rotate relative to the frame 10 and is fixed on the frame 10. The screw 3011 driving mode has the advantage of self-locking, and the vibration generated when the device is operated does not affect the sealing performance between the first sealing element 40 and the second sealing element 50, so as to ensure the sealing reliability of the first sealing element 40 and the second sealing element 50.
Referring to fig. 3, a first seal groove 502, a second seal groove 503 and a plurality of third seal grooves 504 are formed in a surface of the second seal element 50 facing the first seal element 40, the first seal groove 502 and the second seal groove 503 are both U-shaped, each connecting member 60 is located between the first seal groove 502 and the second seal groove 503, each third seal groove 504 is annular and surrounds the periphery of a corresponding second hole 501, and seal strips can be installed in the first seal groove 502, the second seal groove 503 and the third seal groove 504, so as to further improve the sealing performance between the first seal element 40 and the second seal element 50.
During assembly, the moving frame 20 and the driving mechanism 30 may be installed on the frame 10 in advance, then the frame 10 is placed at the bottom positions of the first sealing element 40 and the second sealing element 50, then the plurality of connecting members 60 are sequentially inserted into the bottom positions of the first sealing element 40 and the second sealing element 50, each connecting member 60 needs to sequentially pass through the first hole site 401 and the second hole site 501 and then extend into the avoiding channel 202 during insertion, finally the driving mechanism 30 is operated to control the moving frame 20 to move in the positive direction of the X axis, the moving frame 20 and the plurality of connecting members 60 jointly tension the bottom positions of the first sealing element 40 and the second sealing element 50, and at this time, the splicing and sealing operation of the two cylinder bodies 70 is completed.
When the movable frame 20 is moved in the opposite direction of the X-axis by the driving mechanism 30, the first seal 40, the second seal 50 and the plurality of connecting members 60 can be directly pulled out upward when the main body 601 of the connecting member 60 is positioned in the extending direction of the mounting/dismounting passage 203.
In summary, according to the present invention, the connecting member 60 and the moving frame 20 can clamp the first sealing member 40 and the second sealing member 50 together only by operating the driving mechanism 30 to control the moving frame 20 to move along the first direction, i.e. the gap between the first sealing member 40 and the second sealing member 50 can be sealed quickly, and the present invention has the advantages of easy assembly and disassembly and high sealing reliability, and can be applied to the sealing position of the bottom of the two cylinder blocks 70.
The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is not to be construed in any way as limiting the scope of the invention. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are included in the protection scope of the invention based on the explanation here.
Claims (10)
1. A connecting mechanism suitable for sealing connection is characterized by comprising a frame, a moving frame, a driving mechanism, a first sealing element, a second sealing element and a connecting piece;
the driving mechanism is connected with the frame and the moving frame, the driving mechanism is used for driving the moving frame to move along a first direction relative to the frame, the moving frame can apply an acting force F to the connecting piece in a second direction when moving relative to the frame, an included angle is formed between the second direction and the first direction, the connecting piece is arranged between the first sealing piece and the second sealing piece in a penetrating mode, and the connecting piece is clamped by the acting force F and the moving frame together with the first sealing piece and the second sealing piece so as to seal a gap between the first sealing piece and the second sealing piece.
2. The connecting mechanism suitable for sealing connection according to claim 1, wherein the connecting member includes a main body and a head connected to each other, a stepped surface is provided at an end of the head facing the main body, an abutting surface is provided at a surface of the first sealing member facing away from the second sealing member, the main body is inserted between the first sealing member and the second sealing member, the stepped surface of the head abuts against the abutting surface under the action of the force F, and the head and the moving frame together clamp the first sealing member and the second sealing member.
3. The coupling mechanism adapted for sealing connection as claimed in claim 2, wherein the movable frame is provided with a first inclined surface, the main body is provided with a second inclined surface for matching and abutting against the first inclined surface, and the vertical direction of the first inclined surface is the second direction.
4. The connecting mechanism suitable for sealing connection of claim 3, wherein the shape of the head portion is a special shape, a surface of the first sealing member facing away from the second sealing member is provided with a groove, the shape of the groove is adapted to the shape of the head portion, the head portion is embedded into the groove, and the groove bottom of the groove is the abutting surface.
5. The connecting mechanism according to claim 3, wherein the movable frame has an escape passage formed at a position below the first inclined surface, the connecting member extends into the escape passage, the movable frame has an assembly/disassembly passage formed at a position adjacent to the first inclined surface and extending upward, and the assembly/disassembly passage has a width larger than the outer shape of the main body and communicates with the escape passage.
6. The coupling mechanism adapted for sealing connection as claimed in claim 1, wherein the first sealing member and the second sealing member each include a bottom sealing portion connected to each other and a side sealing portion extending upward relative to the bottom sealing portion, the number of the connecting members is plural, the plurality of connecting members are each inserted between the bottom sealing portion of the first sealing member and the bottom sealing portion of the second sealing member, and the movable frame and the plurality of connecting members jointly clamp the bottom sealing portion of the first sealing member and the bottom sealing portion of the second sealing member.
7. The connecting mechanism suitable for sealing connection as claimed in claim 6, wherein the driving mechanism comprises two driving components, the two driving components are respectively disposed at two ends of the moving frame and are connected to the moving frame, and a connecting line of the two driving components is parallel to the first direction and is used for driving the moving frame to move along the first direction together.
8. The attachment mechanism adapted for sealing engagement as defined in claim 7, wherein said drive assembly includes a threaded rod and a lock nut, said threaded rod being threadably engaged with said movable frame for driving movement of said movable frame relative to said frame, said lock nut being threadably engaged with said threaded rod for constraining said threaded rod to said frame.
9. The coupling mechanism adapted for sealing connection as claimed in claim 1, wherein said frame is adapted to limit movement of said first and second seals in a first direction.
10. A coupling mechanism adapted for sealing connection as claimed in claim 1, wherein a sealing strip is provided between the first and second sealing members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211729667.6A CN115874251A (en) | 2022-12-30 | 2022-12-30 | Connecting mechanism suitable for sealing connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211729667.6A CN115874251A (en) | 2022-12-30 | 2022-12-30 | Connecting mechanism suitable for sealing connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115874251A true CN115874251A (en) | 2023-03-31 |
Family
ID=85757639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211729667.6A Pending CN115874251A (en) | 2022-12-30 | 2022-12-30 | Connecting mechanism suitable for sealing connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115874251A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003083313A (en) * | 2001-09-06 | 2003-03-19 | Nifco Inc | Fastener |
| WO2019001777A1 (en) * | 2017-06-28 | 2019-01-03 | Robert Bosch Gmbh | Sealed connection and housing |
| CN210264439U (en) * | 2019-05-09 | 2020-04-07 | 遵化市东方门窗有限公司 | High-sealing energy-saving aluminum alloy door and window |
| CN210744897U (en) * | 2019-11-28 | 2020-06-12 | 嵊州市凯鑫电器制造厂 | Novel grease proofing motor |
| CN216738601U (en) * | 2022-01-26 | 2022-06-14 | 惠州市本正智能设备有限公司 | Coupling mechanism for solving expansion and contraction pull cracks |
| CN218033623U (en) * | 2021-03-04 | 2022-12-13 | 华为数字能源技术有限公司 | Sealing device and indirect evaporative cooling unit |
-
2022
- 2022-12-30 CN CN202211729667.6A patent/CN115874251A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003083313A (en) * | 2001-09-06 | 2003-03-19 | Nifco Inc | Fastener |
| WO2019001777A1 (en) * | 2017-06-28 | 2019-01-03 | Robert Bosch Gmbh | Sealed connection and housing |
| CN210264439U (en) * | 2019-05-09 | 2020-04-07 | 遵化市东方门窗有限公司 | High-sealing energy-saving aluminum alloy door and window |
| CN210744897U (en) * | 2019-11-28 | 2020-06-12 | 嵊州市凯鑫电器制造厂 | Novel grease proofing motor |
| CN218033623U (en) * | 2021-03-04 | 2022-12-13 | 华为数字能源技术有限公司 | Sealing device and indirect evaporative cooling unit |
| CN216738601U (en) * | 2022-01-26 | 2022-06-14 | 惠州市本正智能设备有限公司 | Coupling mechanism for solving expansion and contraction pull cracks |
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