CN216344558U - Internal expansion type quick connector - Google Patents
Internal expansion type quick connector Download PDFInfo
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- CN216344558U CN216344558U CN202120920776.0U CN202120920776U CN216344558U CN 216344558 U CN216344558 U CN 216344558U CN 202120920776 U CN202120920776 U CN 202120920776U CN 216344558 U CN216344558 U CN 216344558U
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- rear end
- rubber ring
- shaft
- outer sleeve
- quick connector
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Abstract
The utility model provides an internal expansion type quick connector, which comprises: dabber, overcoat, shutoff rubber ring, front end gasket, rear end gasket, axle pulling subassembly, axle push assembly, pull the dabber through the axle and pull the dabber and make the shutoff rubber ring external diameter grow, with the work piece hole shutoff, push assembly forward through the axle and promote axle pulling subassembly and dabber and make the shutoff rubber ring external diameter diminish, quick connector can insert or extract the work piece hole. The inner expansion type quick connector has the advantages that the outer diameter of the sealing rubber ring is increased by extruding the sealing rubber ring, the inner hole of a workpiece is sealed, the use is convenient and quick, the workpiece is not damaged during installation and disassembly, the safety is high, the extrusion force of the sealing rubber ring can be reduced by pinching the handle, the diameter of the sealing rubber ring is reduced, the sealing rubber ring can be conveniently inserted into the inner hole of the workpiece, the handle is loosened, the sealing rubber ring is pressed again under the action force of the spring to complete the sealing of the inner hole of the workpiece, the operation is simple, the connection efficiency is high, and the sealing effect is good.
Description
Technical Field
The utility model belongs to the field of connector equipment, and particularly relates to an internal expansion type quick connector.
Background
When a workpiece is subjected to positive and negative pressure test fluid filling or testing, the tightness of the workpiece needs to be verified in a sealing mode, the workpiece is usually sealed by a hoop or other detachable mechanisms in the prior art, the operation is complex, and meanwhile, lateral force can be applied to the workpiece, so that the workpiece is easily damaged.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to an internal expanding type quick connector to improve the sealing connection efficiency and prevent damage to the workpiece.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
an internally expanding quick connector comprising:
the front end of the mandrel is provided with a convex limiting ring platform;
the outer sleeve is provided with an inner hole which is coaxially arranged, the rear end of the mandrel is inserted into the inner hole of the outer sleeve, and the mandrel is in sealed sliding connection with the outer sleeve;
the plugging rubber ring is sleeved on the mandrel,
the front end gasket is sleeved on the mandrel, the front end of the front end gasket abuts against a limit ring table on the mandrel, and the rear end of the front end gasket abuts against the front end of the plugging rubber ring;
the rear end gasket is sleeved on the mandrel, the front end of the rear end gasket abuts against the rear end of the plugging rubber ring, and the rear end of the rear end gasket abuts against the front end of the outer sleeve;
the shaft pulling component is coaxially arranged in the outer sleeve, the shaft pulling component is in sealed sliding connection with the outer sleeve, the front end of the shaft pulling component is detachably connected with the rear end of the mandrel, the outer diameter of the plugging rubber ring is enlarged by pulling the mandrel,
the shaft pushing assembly is detachably and hermetically connected with the rear end of the outer sleeve, the shaft pushing assembly abuts against the rear end of the shaft pulling assembly, and the outer diameter of the plugging rubber ring is reduced by pushing the shaft pulling assembly and the mandrel forwards.
Preferably, the shaft pulling assembly comprises:
the shaft connecting block is coaxially arranged in the outer sleeve, the shaft connecting block is connected with the outer sleeve in a sealing and sliding manner, the front end of the shaft connecting block is detachably connected with the rear end of the mandrel, the rear end of the shaft connecting block is provided with a convex reset ring platform, and the side wall of an opening at the rear end of the outer sleeve is provided with a ring groove;
reset spring, reset spring locates on the hub connection piece in the annular, and reset spring's both ends offset with the ring groove bottom of overcoat and the reset ring platform of hub connection piece respectively, and reset spring makes shutoff rubber ring external diameter grow through pushing away the hub connection piece pulling dabber backward.
Preferably, the shaft pushing assembly includes:
the rear connecting seat is detachably connected with the rear end of the outer sleeve, a coaxial inner hole is formed in the rear connecting seat, the rear end of the shaft connecting block is inserted into the inner hole of the rear connecting seat and is in sealing sliding connection with the rear connecting seat, and a mounting groove is formed in the rear end of the rear connecting seat;
the handle, the one end of handle is connected through the mounting groove rotation of first round pin axle with the back connecting seat, and the hole that the back connecting seat was passed to the hub connection piece rear end offsets with the handle, and the handle drives the dabber through promoting the hub connection piece forward and makes the external diameter of shutoff rubber ring diminish.
Preferably, the handle is rotatably connected with a roller through a second pin shaft, and the roller is abutted against the rear end of the shaft connecting block.
Preferably, the rear end of the shaft connecting block is provided with a guide post, the diameter of the guide post of the shaft connecting block is smaller than that of the reset ring platform of the shaft connecting block, a guide hole is formed in an inner hole of the rear connecting seat through the guide ring platform, the guide post is inserted into the guide hole to reciprocate along the axial direction, and when the outer diameter of the plugging rubber ring is maximum, the reset ring platform of the shaft connecting block is abutted to the guide ring platform in the rear connecting seat so as to limit the backward movement of the shaft connecting block.
Preferably, an annular groove is formed in the contact surface of the reset boss of the shaft connecting block and the rear connecting seat, and a fourth sealing ring is matched in the annular groove of the reset boss.
Preferably, an annular groove is formed in the contact surface of the rear connecting seat and the outer sleeve, and a third sealing ring is matched in the annular groove of the rear connecting seat.
Preferably, an annular groove is formed in the contact surface of the shaft connecting block and the outer sleeve, and a second sealing ring is matched in the annular groove of the shaft connecting block.
Preferably, an annular groove is formed in the contact surface of the mandrel and the outer sleeve, and a first sealing ring is matched in the annular groove of the mandrel.
Compared with the prior art, the internal expansion type quick connector has the following advantages:
(1) the inner expansion type quick connector disclosed by the utility model has the advantages that the outer diameter is increased by extruding the plugging rubber ring, the inner hole of the workpiece can be sealed, the use is convenient and quick, the workpiece cannot be damaged during installation and disassembly, and the safety is high;
(2) when the internal expansion type quick connector is used, the handle is pinched to reduce the extrusion force of the plugging rubber ring, so that the diameter of the internal expansion type quick connector is reduced, the internal expansion type quick connector is conveniently inserted into an inner hole of a workpiece, the handle is loosened, the plugging rubber ring is stressed again under the action of the spring to complete the sealing of the inner hole of the workpiece, and the internal expansion type quick connector is simple to operate, high in connection efficiency and good in sealing effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural view of an internal expansion type quick connector according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an outer cover according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a shaft connecting block according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a mandrel according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a handle according to an embodiment of the present invention, in which fig. a is a schematic structural view of the handle in a front view, and fig. b is a schematic structural view of the handle in a left view;
fig. 6 is a schematic structural view of the rear connection seat according to the embodiment of the present invention, where fig. a is a schematic structural view of the rear connection seat in a front view, fig. b is a schematic structural view of the rear connection seat in a right view, and fig. c is a schematic structural view of the rear connection seat in a top view.
Description of reference numerals:
1. a mandrel; 2. plugging the rubber ring; 3. a rear end spacer; 4. a jacket; 5. a first seal ring; 6. a shaft connecting block; 7. a second seal ring; 8. a return spring; 9. a third seal ring; 10. a fourth seal ring; 11. a rear connecting seat; 12. a second pin shaft; 13. a roller; 14. a first pin shaft; 15. a handle; 16. a front end pad.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and 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. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The utility model relates to an internal expansion type quick connector, comprising: a mandrel 1, a jacket 4, a plugging rubber ring 2, a front end gasket 16, a rear end gasket 3, a shaft pulling component and a shaft pushing component,
the front end of the mandrel 1 is provided with a convex limiting ring platform; the outer sleeve 4 is provided with an inner hole which is coaxially arranged, the rear end of the mandrel 1 is inserted into the inner hole of the outer sleeve 4, and the mandrel 1 is connected with the outer sleeve 4 in a sealing and sliding manner; the plugging rubber ring 2 is sleeved on the mandrel 1, the front end gasket 16 is sleeved on the mandrel 1, the front end of the front end gasket 16 abuts against a limit ring table on the mandrel 1, and the rear end of the front end gasket abuts against the front end of the plugging rubber ring 2; the rear end gasket 3 is sleeved on the mandrel 1, the front end of the rear end gasket 3 abuts against the rear end of the plugging rubber ring 2, and the rear end abuts against the front end of the outer sleeve 4; in axle pulling subassembly coaxial locating overcoat 4, axle pulling subassembly and 4 sealed sliding connection of overcoat, axle pulling subassembly front end can be dismantled with 1 rear end of dabber and be connected, makes 2 external diameters grow of shutoff rubber ring through pulling dabber 1, sealed connection can be dismantled with 4 rear ends of overcoat to axle pushing subassembly, and axle pushing subassembly offsets with axle pulling subassembly rear end, makes 2 external diameters of shutoff rubber ring diminish through pushing axle pulling subassembly and dabber 1 forward.
When the quick connector needs to be pulled out, the shaft pushing assembly is started to pull the mandrel 1 to enable the mandrel 1 to be located at the rearmost end, the outer diameter of the plugging rubber ring 2 is the largest, when the quick connector needs to be connected with a workpiece, the shaft pushing assembly is started to push the shaft pulling assembly and the mandrel 1 forwards, the front end gasket 16 and the rear end gasket 3 do not extrude the plugging rubber ring 2 any more, the plugging rubber ring 2 is lengthened and reduced in outer diameter under the self elastic action, the inner hole of the workpiece can be inserted, then the shaft pushing assembly is closed, the shaft pulling assembly does not receive the acting force of the shaft pushing assembly any more, the shaft pushing assembly is pushed backwards to pull the mandrel 1, the limiting ring platform drives the front end gasket 16 and the rear end gasket 3 to extrude the plugging rubber ring 2, the length of the plugging rubber ring 2 is shortened, the outer diameter is enlarged, the plugging rubber ring 2 completely plugs the inner hole of the workpiece, quick connection is completed, the shaft pushing assembly is started again to enable the outer diameter of the plugging rubber ring 2 to be reduced, can be smoothly pulled out.
According to the above embodiment, preferably, the shaft pulling assembly includes: the rear end of the shaft connecting block 6 abuts against the front end of the shaft pushing assembly, the shaft connecting block 6 is coaxially arranged in the outer sleeve 4, the shaft connecting block 6 is connected with the outer sleeve 4 in a sealing and sliding mode, the front end of the shaft connecting block 6 is detachably connected with the rear end of the mandrel 1, a convex resetting annular table is arranged at the rear end of the shaft connecting block 6, and an annular groove is formed in the side wall of an opening at the rear end of the outer sleeve 4; reset spring 8 locates on the axle connecting block 6 in the annular, reset spring 8's both ends respectively with the annular groove bottom of overcoat 4 and the reset ring platform of axle connecting block 6 offset, reset spring 8 makes 2 external diameters grow of shutoff rubber ring through pushing away 6 pulling dabbers 1 of axle connecting block backward.
During initial position, reset spring 8 length is the longest, 2 external diameters of shutoff rubber ring are the biggest, when needing to insert or extract the work piece, start axle pushing assembly, the front end of axle pushing assembly promotes axle connecting block 6 rear end forward, the reset ring platform extrusion reset spring 8 of axle connecting block 6, make reset spring 8's length shorten, the external diameter of shutoff rubber ring 2 diminishes, the kinetic energy of axle connecting block 6 changes reset spring 8's elastic potential energy into, when quick connector needs to be connected with the work piece, close axle pushing assembly, axle connecting block 6 no longer receives the effort of axle pushing assembly, reset spring 8's elastic potential energy changes axle connecting block 6's kinetic energy into, make axle connecting block 6 move to the rear end, reset spring 8 length becomes long, the external diameter grow of shutoff rubber ring 2, thereby with the complete shutoff of work piece hole.
According to the above embodiment, preferably, the shaft pushing assembly includes: the rear connecting seat 11 and the handle 15 are detachably connected, a coaxial inner hole is formed in the rear connecting seat 11, the rear end of the shaft connecting block 6 is inserted into the inner hole of the rear connecting seat 11 and is connected with the rear connecting seat 11 in a sealing and sliding mode, and a mounting groove is formed in the rear end of the rear connecting seat 11; one end of the handle 15 is rotatably connected with the mounting groove of the rear connecting seat 11 through the first pin shaft 14, the rear end of the shaft connecting block 6 penetrates through the inner hole of the rear connecting seat 11 to be abutted against the handle 15, and the handle 15 drives the mandrel 1 to reduce the outer diameter of the plugging rubber ring 2 by pushing the shaft connecting block 6 forwards.
During initial position, the handle 15 receives the effort of hub connection piece 6 and is in the open mode, contained angle between handle 15 and the quick connector axis is the biggest, the external diameter of shutoff rubber ring 2 is the biggest, when needs insert or extract the work piece, press handle 15, handle 15 promotes hub connection piece 6 and moves to the front end, contained angle between handle 15 and the quick connector axis diminishes, the external diameter of shutoff rubber ring 2 diminishes, when quick connector needs to be connected with the work piece, loosen handle 15, handle 15 no longer produces the effort to hub connection piece 6, reset spring 8 promotes hub connection piece 6 and moves to the rear end, hub connection piece 6 makes handle 15 open once more, contained angle grow between handle 15 and the quick connector axis, the external diameter grow of shutoff rubber ring 2, thereby with the complete shutoff of work piece hole, the contained angle grow of hub connection piece hole
According to the above embodiment, preferably, the handle 15 is rotatably connected with the roller 13 through the second pin shaft 12, the roller 13 abuts against the rear end of the shaft connecting block 6, friction between the handle 15 and the shaft connecting block 6 is converted into rotation of the roller 13, abrasion to the shaft connecting block 6 is reduced, and the service life of the quick connector is prolonged.
According to the above embodiment, preferably, the rear end of the shaft connecting block 6 is provided with a guide post, the diameter of the guide post of the shaft connecting block 6 is smaller than the diameter of the return ring platform of the shaft connecting block 6, a guide hole is formed in the inner hole of the rear connecting seat 11 through the guide ring platform, when the mandrel 1 and the shaft connecting block 6 reciprocate axially, the guide post is always inserted into the guide hole to reciprocate axially, so that the mandrel 1 and the shaft connecting block 6 maintain high coaxiality in the reciprocating axial process, and when the outer diameter of the plugging rubber ring 2 is maximum, the return ring platform of the shaft connecting block 6 abuts against the guide ring platform in the rear connecting seat 11 to limit the backward movement of the shaft connecting block 6.
According to the above embodiment, preferably, an annular groove is formed in the contact surface between the reset boss of the shaft connecting block 6 and the rear connecting seat 11, and a fourth sealing ring 10 is fitted in the annular groove of the reset boss, so that the shaft connecting block 6 is always in a sealing state with the rear connecting seat 11 in the axial reciprocating motion process, and water or impurities are prevented from entering the quick connector and affecting the normal operation of the quick connector.
According to the above embodiment, preferably, an annular groove is formed in the contact surface between the rear connecting seat 11 and the outer sleeve 4, and the third sealing ring 9 is fitted in the annular groove of the rear connecting seat 11, so that the rear connecting seat 11 and the outer sleeve 4 are always in a sealing state, and water or impurities are prevented from entering the quick connector and affecting the normal operation of the quick connector.
According to the above embodiment, preferably, an annular groove is formed in the contact surface between the shaft connecting block 6 and the outer sleeve 4, and a second sealing ring 7 is matched in the annular groove of the shaft connecting block 6, so that the shaft connecting block 6 and the outer sleeve 4 are always in a sealing state in the axial reciprocating motion process, and water or impurities are prevented from entering the quick connector to influence the normal operation of the quick connector.
According to the above embodiment, preferably, an annular groove is formed in the contact surface between the mandrel 1 and the outer sleeve 4, and the first sealing ring 5 is matched in the annular groove of the mandrel 1, so that the mandrel 1 and the outer sleeve 4 are always in a sealing state in the axial reciprocating motion process, and water or impurities are prevented from entering the quick connector to influence the normal operation of the quick connector.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An internally expanding quick connector, comprising:
the front end of the mandrel (1) is provided with a convex limiting ring platform;
the core shaft structure comprises an outer sleeve (4), wherein the outer sleeve (4) is provided with an inner hole which is coaxially arranged, the rear end of the core shaft (1) is inserted into the inner hole of the outer sleeve (4), and the core shaft (1) is in sealed sliding connection with the outer sleeve (4);
the plugging rubber ring (2), the plugging rubber ring (2) is sleeved on the mandrel (1),
the front end gasket (16) is sleeved on the mandrel (1), the front end of the front end gasket (16) abuts against a limiting ring table on the mandrel (1), and the rear end of the front end gasket (16) abuts against the front end of the plugging rubber ring (2);
the rear end gasket (3) is sleeved on the mandrel (1), the front end of the rear end gasket (3) abuts against the rear end of the plugging rubber ring (2), and the rear end of the rear end gasket abuts against the front end of the outer sleeve (4);
the shaft pulling component is coaxially arranged in the outer sleeve (4), the shaft pulling component is in sealed sliding connection with the outer sleeve (4), the front end of the shaft pulling component is detachably connected with the rear end of the mandrel (1), the outer diameter of the plugging rubber ring (2) is enlarged by pulling the mandrel (1),
the axle promotes the subassembly, the sealed connection can be dismantled with overcoat (4) rear end to the axle promotes the subassembly, and the axle promotes the subassembly and offsets with the axle pulling subassembly rear end, makes shutoff rubber ring (2) external diameter diminish through promoting axle pulling subassembly and dabber (1) forward.
2. The internally expanding quick connector of claim 1, wherein the shaft pulling assembly comprises:
the shaft connecting block (6) is coaxially arranged in the outer sleeve (4), the shaft connecting block (6) is connected with the outer sleeve (4) in a sealing and sliding mode, the front end of the shaft connecting block (6) is detachably connected with the rear end of the mandrel (1), the rear end of the shaft connecting block (6) is provided with a convex resetting ring platform, and the side wall of an opening at the rear end of the outer sleeve (4) is provided with a ring groove;
reset spring (8), reset spring (8) are located on the axle connecting piece (6) in the annular, and the both ends of reset spring (8) offset with the ring groove bottom of overcoat (4) and the ring platform that resets of axle connecting piece (6) respectively, and reset spring (8) make shutoff rubber ring (2) external diameter grow through pushing away moving shaft connecting piece (6) pulling dabber (1) backward.
3. The internally expanding quick connector of claim 2, wherein the shaft pushing assembly comprises:
the rear connecting seat (11), the rear connecting seat (11) is detachably connected with the rear end of the outer sleeve (4), an inner hole which is coaxially arranged is formed in the rear connecting seat (11), the rear end of the shaft connecting block (6) is inserted into the inner hole of the rear connecting seat (11) and is in sealing sliding connection with the rear connecting seat (11), and a mounting groove is formed in the rear end of the rear connecting seat (11);
handle (15), the one end of handle (15) is connected through first round pin axle (14) and the mounting groove rotation of back connecting seat (11), and the hole that back connecting seat (11) were passed to hub connection piece (6) rear end offsets with handle (15), and handle (15) are through pushing forward hub connection piece (6) drive dabber (1) make the external diameter of shutoff rubber ring (2) diminish.
4. The internally expanding quick connector of claim 3, wherein: the handle (15) is rotatably connected with a roller (13) through a second pin shaft (12), and the roller (13) abuts against the rear end of the shaft connecting block (6).
5. The internally expanding quick connector of claim 3, wherein: the utility model discloses a quick-witted, including hub connection piece (6), reset ring platform, guide post and guide post, hub connection piece (6) rear end is equipped with the guide post, the diameter of the guide post of hub connection piece (6) is less than the diameter of reset ring platform of hub connection piece (6), be formed with the guiding hole through the guide ring platform in the hole of back connecting seat (11), the guide post inserts along axial reciprocating motion in the guiding hole, and when the external diameter of shutoff rubber ring (2) is the biggest, the reset ring platform of hub connection piece (6) offsets with the guide ring platform in back connecting seat (11) in order to restrict hub connection piece (6) rearward movement.
6. The internally expanding quick connector of claim 3, wherein: an annular groove is formed in the contact surface of the reset boss of the shaft connecting block (6) and the rear connecting seat (11), and a fourth sealing ring (10) is matched in the annular groove of the reset boss.
7. The internally expanding quick connector of claim 3, wherein: an annular groove is formed in the contact surface of the rear connecting seat (11) and the outer sleeve (4), and a third sealing ring (9) is matched in the annular groove of the rear connecting seat (11).
8. The internally expanding quick connector of claim 2, wherein: and an annular groove is formed in the contact surface of the shaft connecting block (6) and the outer sleeve (4), and a second sealing ring (7) is matched in the annular groove of the shaft connecting block (6).
9. The internally expanding quick connector of claim 1, wherein: the contact surface of the mandrel (1) and the outer sleeve (4) is provided with an annular groove, and a first sealing ring (5) is matched in the annular groove of the mandrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920776.0U CN216344558U (en) | 2021-04-29 | 2021-04-29 | Internal expansion type quick connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920776.0U CN216344558U (en) | 2021-04-29 | 2021-04-29 | Internal expansion type quick connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216344558U true CN216344558U (en) | 2022-04-19 |
Family
ID=81129667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120920776.0U Active CN216344558U (en) | 2021-04-29 | 2021-04-29 | Internal expansion type quick connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216344558U (en) |
-
2021
- 2021-04-29 CN CN202120920776.0U patent/CN216344558U/en active Active
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