CN115355384B - Connecting device - Google Patents
Connecting device Download PDFInfo
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- CN115355384B CN115355384B CN202211276948.0A CN202211276948A CN115355384B CN 115355384 B CN115355384 B CN 115355384B CN 202211276948 A CN202211276948 A CN 202211276948A CN 115355384 B CN115355384 B CN 115355384B
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- joint
- guide groove
- ring
- groove
- slider
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0875—Connecting tubes
Abstract
An embodiment of the present invention provides a connection device, including: the device comprises a joint, a pushing ring, a first sliding block, a second sliding block, a guide ring and a base. The guide ring comprises a first guide groove, a second guide groove and a third guide groove which are continuous, the distance between the first guide groove and the joint axis is unchanged along the positive rotation direction, the distance between the second guide groove and the joint axis is gradually increased, the distance between the third guide groove and the joint axis is gradually reduced, and the minimum distance is smaller than the distance between the first guide groove and the joint axis; the first sliding block and the second sliding block can slide along the first guide groove, the second guide groove and the third guide groove. Through setting up the multistage guide way for no matter what kind of effort that the joint received, it is more firm all to make the connection between joint and the base, has avoided leading to the problem of cooperation inefficacy between joint and base because of the joint receives exogenic action from this.
Description
Technical Field
The invention relates to the technical field of part assembly and correction, in particular to a connecting device.
Background
The shaft hole assembly refers to a process of assembling a shaft and a hole according to technical requirements such as tolerance and the like, and forming the shaft and the hole into a relatively whole through debugging and inspection. The assembly must have two basic conditions for positioning and clamping: positioning, namely determining that the shaft and the hole have a correct position relation; 2. and (4) clamping, namely fixing the positioned shaft and the hole. The fitting of the shaft and bore is typically a mating connection, with the clamping force between the shaft and bore being provided entirely by the mating relationship between the shaft bores, but the clamping provided solely by the mating relationship is susceptible to loosening when the shaft is impacted by an external force. In the actual production process, need in some mechanical equipment, for example, some non-metallic pipeline or non-metallic shaft class parts of downthehole assembly in the metal arm, assembly after metal hole and non-metallic pipeline are rectified, but the cooperation between these shaft holes easily takes off in the middle of the operation, takes off the back and can make the correction inefficacy.
Disclosure of Invention
In view of the above, it is necessary to provide a connecting device for the problem of easy release in the current shaft hole assembly. The device is particularly suitable for assembling medical instruments, and is also suitable for other shaft hole matching needing to be prevented from loosening.
The above purpose is realized by the following technical scheme:
a connection device, comprising: the device comprises a joint, a pushing ring, a first sliding block, a second sliding block, a guide ring and a base;
the joint is a revolving body, penetrates through the base and can rotate relative to the base;
the pushing ring is sleeved on the joint and is positioned on the inner side of the base, and the pushing ring can be expanded outwards along the radial direction of the joint;
the first sliding block, the joint and the ejector ring rotate synchronously;
the second sliding block can rotate for a preset angle relative to the pushing ring;
the guide ring comprises a first guide groove, a second guide groove and a third guide groove which are continuous, the distance between the first guide groove and the joint axis is unchanged along the forward rotation direction, the distance between the second guide groove and the joint axis is gradually increased, the distance between the third guide groove and the joint axis is gradually decreased, and the minimum distance is smaller than the distance between the first guide groove and the joint axis; the first slider and the second slider can slide along the first guide groove, the second guide groove and the third guide groove; the guide ring is also provided with a first one-way structure, and the first one-way structure enables the first sliding block to only positively rotate relative to the guide ring;
and a second one-way structure is arranged on the base, and the second one-way structure enables the second sliding block to only positively rotate relative to the guide ring.
In one embodiment, the pushing ring is formed by surrounding two half rings; the semi-rings are provided with radial sliding grooves and circumferential sliding grooves, the first sliding blocks penetrate through the radial sliding grooves, and the second sliding blocks penetrate through the circumferential sliding grooves.
In one embodiment, a connecting sliding groove is formed in the side wall of the circumferential sliding groove, a connecting block is arranged on the side face of the second sliding block, and the connecting block is arranged in the connecting sliding groove in a sliding mode.
In one embodiment, the first sliding block comprises an arc-shaped part, a radial connecting rod and an axial connecting rod which are fixedly connected into a whole, and the arc-shaped part and the axial connecting rod are respectively positioned at two end parts of the radial connecting rod; the arc portion faces the shape of the wall face on one side of the joint and fits to the wall face of the joint, and a first one-way portion matched with the first one-way structure is arranged at the lower end of the axial connecting rod.
In one embodiment, the first unidirectional portion and the first unidirectional structure are both ratchet teeth.
In one embodiment, one end of the radial connecting rod protrudes out of the arc-shaped portion to form a clamping portion, a clamping groove matched with the clamping portion is formed in the joint, and a withdrawing groove communicated with the first guide groove is formed in the guide ring.
In one embodiment, the lower end of the second sliding block is provided with a second one-way part matched with the second one-way structure.
In one embodiment, the second unidirectional portion and the second unidirectional structure are both ratchet teeth.
In one embodiment, the sealing device further comprises a sealing cover, the sealing cover and the base are enclosed to form an enclosed cavity, and the pushing ring, the first sliding block, the second sliding block and the guide ring are all located in the enclosed cavity.
The beneficial effects of the invention are:
according to the connecting device provided by the embodiment of the invention, the plurality of sections of guide grooves are arranged, so that the connection between the joint and the base is firmer no matter what acting force is applied to the joint, and further, the connection between the shaft connected with the joint and the base and the hole is tighter, so that the problem of fit failure between the joint and the base due to the action of the external force applied to the joint is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a connecting device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the connection device of FIG. 1 with the cover hidden;
FIG. 3 is an exploded view of the connection device of FIG. 1;
FIG. 4 is a schematic structural diagram of a first slider in the connecting device of FIG. 1;
FIG. 5 is a schematic structural view of a second slider in the connecting device of FIG. 1;
FIG. 6 is a schematic view of a guide ring of the connector of FIG. 1;
FIG. 7 is a schematic structural diagram of a base in the connecting device of FIG. 1;
FIG. 8 is a schematic view of a push ring of the connector of FIG. 1;
fig. 9 is a schematic structural view of a connecting device according to another embodiment of the present invention, wherein the connecting device is used for connecting a transnasal high flow oxygen therapy device and an external breathing circuit.
Wherein:
310. a joint; 311. a clamping groove; 320. pushing the ring; 321. a radial chute; 322. a circumferential chute; 330. a first slider; 331. a first unidirectional portion; 332. an arcuate portion; 333. a clamping part; 340. a second slider; 341. connecting blocks; 342. a second unidirectional portion; 350. a guide ring; 351. a first guide groove; 352. a second guide groove; 353. a third guide groove; 354. a withdrawal groove; 360. a base; 361. mounting grooves; 370. and (7) sealing the cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The ordinal numbers used herein for the components, such as "first," "second," etc., are used merely to distinguish between the objects described, and do not have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 8, an embodiment of the present invention provides a connection device, including: the joint 310, the pushing ring 320, the first sliding block 330, the second sliding block 340, the guide ring 350 and the base 360;
the joint 310 is a revolving body, and the joint 310 is arranged through the base 360 and can rotate relative to the base 360;
the pushing ring 320 is sleeved on the joint 310 and located inside the base 360, and the pushing ring 320 can expand radially outwards along the joint 310;
the first sliding block 330, the joint 310 and the pushing ring 320 rotate synchronously;
the second slider 340 can rotate a preset angle relative to the ejector ring 320;
the guide ring 350 comprises a first guide groove 351, a second guide groove 352 and a third guide groove 353 which are continuous, the distance between the first guide groove 351 and the axis of the joint 310 is constant along the forward rotation direction, the distance between the second guide groove 352 and the axis of the joint 310 is gradually increased, the distance between the third guide groove 353 and the axis of the joint 310 is gradually reduced, and the minimum distance is smaller than the distance between the first guide groove 351 and the axis of the joint 310; the first slider 330 and the second slider 340 are each slidable along the first guide groove 351, the second guide groove 352, and the third guide groove 353; the guide ring 350 is further provided with a first one-way structure, and the first one-way structure enables the first slider 330 to only rotate in the forward direction relative to the guide ring 350;
the base 360 is provided with a second one-way structure, which enables the second slider 340 to rotate only in the forward direction relative to the guide ring 350.
In one embodiment, the pushing ring 320 is formed by two half rings; the semi-rings are provided with a radial sliding groove 321 and a circumferential sliding groove 322, the first sliding block 330 passes through the radial sliding groove 321, and the second sliding block 340 passes through the circumferential sliding groove 322.
In one embodiment, a connecting sliding groove is formed in a side wall of the circumferential sliding groove 322, a connecting block 341 is arranged on a side surface of the second sliding block 340, and the connecting block 341 is slidably arranged in the connecting sliding groove.
In one embodiment, the first sliding block 330 includes an arc portion 332, a radial connecting rod and an axial connecting rod, which are fixedly connected as a whole, and the arc portion 332 and the axial connecting rod are respectively located at two end portions of the radial connecting rod; the shape of the wall surface of the arc part 332 facing one side of the joint 310 fits the wall surface of the joint 310, and the lower end of the axial connecting rod is provided with a first one-way part 331 matched with the first one-way structure.
In one embodiment, the first unidirectional portion 331 and the first unidirectional structure are both ratchet teeth.
In one embodiment, one end of the radial connecting rod protrudes from the arc portion 332 and forms a locking portion 333, the joint 310 is provided with a locking groove 311 engaged with the locking portion 333, and the guide ring 350 is provided with a withdrawing groove 354 communicated with the first guide groove 351.
In one embodiment, the lower end of the second slider 340 is provided with a second unidirectional portion 342 engaged with the second unidirectional structure.
In one embodiment, the second unidirectional portion 342 and the second unidirectional structure are both ratchet teeth.
In one embodiment, the device further comprises a cover 370, the cover 370 and the base 360 enclose to form an enclosed cavity, and the pushing ring 320, the first slider 330, the second slider 340 and the guiding ring 350 are all located in the enclosed cavity.
In one embodiment, a mounting groove 361 is disposed on the base 360, and a mounting block is disposed on a side of the guide ring 350 facing the base 360, and the mounting block is engaged in the mounting groove 361, so that the guide ring 350 can deflect relative to the base 360 by an angle substantially equal to an angle at which the second slider 340 can slide along the circumferential sliding groove 322.
The first embodiment is as follows:
as shown in fig. 1-8, the present embodiment provides a coupling device including a joint 310, a push ring 320, a first slider 330, a second slider 340, a guide ring 350, a base 360, and a cover 370. The base 360 is fixedly installed to an external device, and the connector 310 is connected to another external device, and the connector 310 is inserted through the base 360 and assembled and fixed, thereby connecting the two external devices.
The base 360 is cylindrical, a through hole for the connector 310 to pass through is formed in the bottom wall, and a ratchet is arranged on one side surface of the base 360 facing the cover 370. The base 360 and the cover 370 enclose to form an enclosed cavity, and the cover 370 is also provided with a through hole for the connector 310 to pass through. The ejector ring 320, the first slider 330, the second slider 340, and the guide ring 350 are all located inside the enclosure.
The pushing ring 320 is formed by two semi-rings, which can be close to or away from each other along the same radial direction of the joint 310, and the pushing ring 320 is sleeved on the joint 310 after the two semi-rings are close to and surround. Any one of the half rings is provided with a radial sliding groove 321 and a circumferential sliding groove 322, and a connecting sliding groove (not shown in the figure) is arranged in the inner side wall of the circumferential sliding groove 322.
The number of the first sliding blocks 330 is two, and the first sliding blocks 330 include an arc portion 332, a radial connecting rod and an axial connecting rod which are fixedly connected into a whole, and the arc portion 332 and the axial connecting rod are respectively located at two end portions of the radial connecting rod. The wall surface of the arc portion 332 facing the side of the joint 310 is fitted to the wall surface of the joint 310, and when the arc portion 332 abuts against the joint 310, the wall surface facing the side of the joint 310 can be tightly fitted to the wall surface of the joint 310. One end of the radial connecting rod protrudes from the arc portion 332 and forms a catching portion 333. The lower end of the axial connecting rod is provided with a first one-way portion 331 engaged with the ratchet on the base 360, in this embodiment, the first one-way portion 331 is a ratchet.
The number of the second sliding blocks 340 is two, the side surface of the second sliding block 340 is provided with a connecting block 341, and the connecting block 341 is slidably arranged in the connecting sliding groove. The bottom of the second slider 340 is provided with a second one-way portion 342, and in this embodiment, the second one-way portion 342 is a ratchet.
The guide ring 350 is provided with a first guide groove 351, a second guide groove 352 and a third guide groove 353 which are continuous, and along the forward rotation direction (in this embodiment, the counterclockwise direction in fig. 6 is the forward rotation direction, and the clockwise direction is the reverse rotation direction), the distance between the first guide groove 351 and the axis of the joint 310 is constant, the distance between the second guide groove 352 and the axis of the joint 310 is gradually increased, the distance between the third guide groove 353 and the axis of the joint 310 is gradually decreased, and the minimum distance is smaller than the distance between the first guide groove 351 and the axis of the joint 310. The first guide groove 351, the second guide groove 352 and the third guide groove 353 are all through grooves, and ratchet teeth are provided on inner side wall surfaces of the first guide groove 351, the second guide groove 352 and the third guide groove 353, and the ratchet teeth are engaged with the ratchet teeth on the first slider 330. The second slider 340 passes through the through slot, and the ratchet at the lower end thereof is matched with the ratchet on the base 360. A retreat groove 354 communicating with the first guide groove 351 or the second guide groove 352 is provided at a junction of the first guide groove 351 and the second guide groove 352.
The joint 310 is provided with a catching groove 311 engaged with the catching portion 333.
In the initial state, the first slider 330 is located in the retreat groove 354 such that the distance between the arc-shaped portions 332 of the two first sliders 330 is greater than the diameter of the joint 310 to be inserted, thereby facilitating the insertion of the joint 310. Also, the first slider 330 is located at the junction of the first guide groove 351 and the second guide groove 352, the second slider 340 is located at the clockwise end of the first guide groove 351, and the second slider 340 is located at the clockwise end of the circumferential slide groove 322. Inserting the connector 310, aligning the clamping groove 311 on the connector 310 with the withdrawing groove 354, pushing the first slider 330, so that the clamping portion 333 of the first slider 330 is clamped into the clamping groove 311, thereby enabling the first slider 330 to synchronously rotate along with the connector 310; at this time, the arc-shaped portions 332 of the two first sliders 330 are closely attached to the outer circumferential wall surface of the joint 310.
Rotating the joint 310 counterclockwise, the first slider 330 sliding counterclockwise along the second guide groove 352 due to the first slider 330 rotating synchronously with the joint 310, the first slider 330 gradually moving away from the joint 310 in a radial outward direction while sliding counterclockwise in the second guide groove 352; subsequently, the first slider 330 enters the third guide groove 353, and the first slider 330 gradually approaches and clamps the joint 310 in a radially inward direction while sliding counterclockwise in the third guide groove 353. Since the distance between the third guide groove 353 and the axis of the joint 310 is gradually reduced and the distance minimum is smaller than the distance between the first guide groove 351 and the axis of the joint 310, the first slider 330 gradually grips the joint 310.
Meanwhile, since the second sliding block 340 is located at the clockwise end of the circumferential sliding groove 322, when the pushing ring 320 synchronously rotates counterclockwise along with the first sliding block 330, the pushing ring 320 drives the second sliding block 340 to rotate counterclockwise. The second slider 340 slides in the first guide groove 351 first, and the ejector ring 320 does not move radially. Then the second sliding block 340 enters the second guiding groove 352, at this time, along with the counterclockwise rotation of the second sliding block 340, the second sliding block 340 gradually moves away from the joint 310 in the radial outward direction, and the two half rings are pushed by the second sliding block 340 to also move away from the joint 310 until the pushing ring 320 contacts with the inner wall of the base 360 and forms a clamping connection. Thereby, clamping of the joint 310 is achieved. It should be noted that, when the pushing ring 320 and the base 360 form a clamping connection, the first slider 330 is located at the middle section of the third guiding groove 353, and the second slider 340 is located at the middle section of the second guiding groove 352, that is, the first slider 330 can still slide along the third guiding groove 353, and the second slider 340 can still slide along the second guiding groove 352. During the above process, the guide ring 350 and the base 360 remain stationary.
After clamping, when the connector 310 is subjected to an external force, the external force always acts to rotate the connector 310 forward or to rotate the connector 310 backward.
If the external force appears to rotate the joint 310 forward, the joint 310 rotates forward, the first slider 330 continues to slide along the third guiding groove 353, and the arc portion 332 is further moved to approach and clamp the joint 310. Meanwhile, the second slider 340 continues to slide along the second guiding groove 352, and drives the half ring to further approach and abut against the base 360. In short, if the connector 310 is subjected to an external force that causes the connector 310 to rotate forward, the clamping force between the connector 310 and the base 360 is increased.
If the external force acts to rotate the joint 310 reversely, the joint 310 rotates reversely, and the ratchet is arranged between the first slider 330 and the guide ring 350, so that the first slider 330 does not rotate reversely along the third guide groove 353 and rotates relative to the guide ring 350, but drives the guide ring 350 to rotate synchronously. Since the first slider 330 and the guide ring 350 are rotated in opposite directions in synchronization, the first slider 330 does not move in the radial direction of the joint 310, so that the clamping force of the first slider 330 on the joint 310 is not reduced.
Meanwhile, due to the ratchet engagement between the second slider 340 and the base 360, the second slider 340 cannot rotate in the reverse direction, but the guide ring 350 rotates in the reverse direction, i.e., the second slider 340 still rotates in the forward direction relative to the guide ring 350. At this time, the second sliding block 340 slides from the clockwise end to the counterclockwise end of the circumferential sliding groove 322, the second sliding block 340 still slides along the second guiding groove 352, the second sliding block 340 gradually moves away from the joint 310 in the radial outward direction, and the two half rings are pushed by the second sliding block 340 to move away from the joint 310, so as to further increase the clamping force between the pushing ring 320 and the base 360.
In summary, the connection between the joint 310 and the base 360 is always more secure regardless of the external force applied to the joint 310.
Example two:
as shown in fig. 9, the difference between the present embodiment and the first embodiment is that the base of the present embodiment is fixedly connected to the transnasal high flow oxygen therapy device, and the connector is connected to the external breathing pipeline.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood 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 should be subject to the appended claims.
Claims (9)
1. A connection device, comprising: the device comprises a joint, a pushing ring, a first sliding block, a second sliding block, a guide ring and a base;
the joint is a revolving body, penetrates through the base and can rotate relative to the base;
the pushing ring is sleeved on the joint and is positioned on the inner side of the base, and the pushing ring can be expanded outwards along the radial direction of the joint;
the first sliding block, the joint and the ejector ring rotate synchronously;
the second sliding block can rotate for a preset angle relative to the pushing ring;
the guide ring comprises a first guide groove, a second guide groove and a third guide groove which are continuous, the distance between the first guide groove and the joint axis is unchanged along the forward rotation direction, the distance between the second guide groove and the joint axis is gradually increased, the distance between the third guide groove and the joint axis is gradually decreased, and the minimum distance is smaller than the distance between the first guide groove and the joint axis; the first slider and the second slider can slide along the first guide groove, the second guide groove and the third guide groove; the guide ring is also provided with a first one-way structure, and the first one-way structure enables the first sliding block to only rotate in the positive direction relative to the guide ring;
the base is provided with a second one-way structure, and the second one-way structure enables the second sliding block to only rotate in the positive direction relative to the guide ring.
2. The connecting device of claim 1 wherein the ejector ring is formed by two half rings; the semi-ring is provided with a radial sliding groove and a circumferential sliding groove, the first sliding block penetrates through the radial sliding groove, and the second sliding block penetrates through the circumferential sliding groove.
3. The connecting device according to claim 2, wherein a connecting chute is arranged on a side wall of the circumferential chute, and a connecting block is arranged on a side surface of the second slider and is slidably arranged in the connecting chute.
4. The connecting device according to any one of claims 1 to 3, wherein the first slider comprises an arc-shaped portion, a radial connecting rod and an axial connecting rod fixedly connected as a whole, the arc-shaped portion and the axial connecting rod being respectively located at both end portions of the radial connecting rod; the arc portion faces the wall surface shape of one side of the joint and fits to the wall surface of the joint, and a first one-way portion matched with the first one-way structure is arranged at the lower end of the axial connecting rod.
5. The connection device recited in claim 4, wherein the first unidirectional portion and the first unidirectional structure are both ratchet teeth.
6. The connecting device as claimed in claim 4, wherein one end of the radial connecting rod protrudes from the arc portion and forms a clamping portion, the joint is provided with a clamping groove matched with the clamping portion, and the guide ring is provided with a withdrawing groove communicated with the first guide groove.
7. A connection device according to any of claims 1-3, characterised in that the lower end of the second slider is provided with a second unidirectional portion cooperating with the second unidirectional structure.
8. The connection device recited in claim 7, wherein the second unidirectional portion and the second unidirectional structure are each ratchet teeth.
9. The connecting device according to any one of claims 1-3, further comprising a cover, wherein the cover and the base enclose to form an enclosed cavity, and the ejector ring, the first slider, the second slider, and the guide ring are all located in the enclosed cavity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211276948.0A CN115355384B (en) | 2022-10-19 | 2022-10-19 | Connecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211276948.0A CN115355384B (en) | 2022-10-19 | 2022-10-19 | Connecting device |
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| CN115355384A CN115355384A (en) | 2022-11-18 |
| CN115355384B true CN115355384B (en) | 2023-01-03 |
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| CN215334953U (en) * | 2021-07-13 | 2021-12-28 | 无锡市三宏管业有限公司 | Pipeline connector with anti-falling function |
| CN114227836A (en) * | 2021-12-23 | 2022-03-25 | 沭阳县润丰木业制品厂 | On-spot saw-dust rubbish suction processing system of wood working |
| CN114569850A (en) * | 2022-02-21 | 2022-06-03 | 郑州市中心医院 | Medical intelligent trachea cannula |
| CN114941756A (en) * | 2022-07-26 | 2022-08-26 | 南通希尔顿博世流体设备有限公司 | Fastening joint for fluid pipeline connection |
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| CN115355384A (en) | 2022-11-18 |
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