Clean pneumatic quick connector

Abstract

The utility model relates to quick connector technical field, and disclose a kind of clean pneumatic quick connector, including cup cover, the inside of cup cover is engaged with filter cup, one end of cup cover is equipped with end cap one, the other end of cup cover is equipped with end cap two, the surface of end cap two is equipped with ratchet wheel, the surface of cup cover is equipped with the non-return mechanism of the ratchet wheel position limiting, and one end of end cap two is equipped with the air pipe fixing mechanism of the air pipe fixed;By setting cup cover, filter cup can be installed, and the diameter of filter cup can be guaranteed, the end cap one and end cap two of its two ends can limit the effect of filter cup, the setting of filter cup can increase the filtration area of gas, not easy to block, by end cap two and cup cover screw connection, it is convenient to install and disassemble filter cup, by disassembling end cap two, it is convenient to take out filter cup, clean the dust of filtration.

Description

Technical Field

[0001] This utility model relates to the field of quick-connect coupling technology, specifically a clean pneumatic quick-connect coupling. Background Technology

[0002] Pneumatic quick-connect couplings are devices used to quickly connect and disconnect pneumatic pipelines (such as compressed air and vacuum systems). Their core feature is that they can achieve instant connection and disconnection of pipelines without tools, and they are widely used in industrial automation, mechanical equipment, medical equipment and other fields.

[0003] The "Clean-type Pneumatic Quick-connect Fitting" disclosed in application number "201721853169.7" includes a fitting body with an insertion hole for inserting an external air tube and a vent hole communicating with the insertion hole. The insertion hole is provided with a locking element to prevent the external air tube from exiting the insertion hole and a sealing element to seal the gap between the external air tube and the insertion hole. The vent hole includes a connecting hole communicating with the insertion hole and a limiting hole communicating with the connecting hole. A limiting ring is provided on the inner wall of the limiting hole of the fitting body. A first pressure ring is pressed into the connecting hole towards the limiting ring. A filter screen is embedded between the first pressure ring and the limiting ring. The filter screen can filter dust in the air source, improve the purity of the air source, avoid dust and other impurities from affecting the service life of other system components, and improve the working efficiency of the air source system.

[0004] However, the above method still has the following drawbacks: using a filter screen can filter dust in the air source and improve the purity of the air source, but the filter screen is fixed inside the connector body and has a small diameter, which can easily lead to dust blockage. Once blocked, it will reduce the gas delivery capacity and it is not convenient to remove it from the connector body and clean it. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a clean pneumatic quick-connect fitting that is less prone to clogging and easy to clean, thus solving the problems mentioned in the background section.

[0006] This utility model provides the following technical solution: a clean pneumatic quick-connect connector, including a cup sleeve, a filter cup being snapped into the inside of the cup sleeve, an end cap one being fixedly provided at one end of the cup sleeve, an end cap two being fixedly provided at the other end of the cup sleeve, a ratchet being fixedly provided on the surface of the end cap two, a check mechanism for limiting the ratchet being provided on the surface of the cup sleeve, and an air tube fixing mechanism for fixing the air tube being provided at one end of the end cap two.

[0007] As a preferred technical solution of this utility model, the anti-return mechanism includes a vertical plate, one side of which is fixedly connected to the surface of the cup sleeve, a rotating shaft is rotatably connected to one side of the vertical plate, a torsion spring is sleeved on the surface of the rotating shaft, and a pawl is fixedly provided at one end of the rotating shaft, the pawl being engaged with a ratchet.

[0008] As a preferred embodiment of this utility model, one end of the torsion spring is engaged with a pawl, and a slot is provided on one side of the upright plate, with the other end of the torsion spring engaged with the slot.

[0009] As a preferred technical solution of this utility model, one end of the end cap is fixedly provided with a threaded tube, the surface of the threaded tube is provided with a wrench position, and a plurality of rubber columns for limiting the filter cup are fixedly provided inside the end cap, and a deformation groove is provided on one side of the rubber column.

[0010] As a preferred technical solution of this utility model, the other end of the cup sleeve is fixedly provided with a threaded ring, and the inner wall of the second end cap is provided with an internal thread. The threaded ring is threadedly connected to the second end cap through the internal thread.

[0011] As a preferred embodiment of this utility model, the trachea fixing mechanism includes a sleeve, a sealing ring is installed inside the sleeve, a retaining spring for fixing the trachea is provided on one side of the sealing ring, and an alloy retaining sleeve is provided at one end of the sleeve, with a release mechanism inside the alloy retaining sleeve.

[0012] As a preferred technical solution of this utility model, a plum blossom knob is fixedly provided on the surface of the sleeve, and a number of anti-slip grooves are opened on the surface of the plum blossom knob.

[0013] As a preferred embodiment of this utility model, a positioning ring is fixedly provided inside the second end cap, and the positioning ring is engaged with one end of the filter cup. A retaining seat is fixedly provided inside the second end cap, and a sealing gasket is engaged with the retaining seat. The sealing gasket is coaxial with the cup sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting a cup sleeve, the filter cup can be installed and the diameter of the filter cup can be guaranteed. The end caps at both ends can limit the filter cup. The filter cup setting can increase the gas filtration area, making it less prone to clogging and ensuring the gas purification and delivery capacity. By connecting the end cap to the cup sleeve by thread, it is convenient to install and remove the filter cup. By removing the end cap, it is easy to remove the filter cup and clean the filtered dust.

[0016] 2. This cleaning-type pneumatic quick-connect fitting, by setting a check mechanism on the surface of the cup sleeve, can ensure the tightening of the end cap two and lock it when tightened, preventing the end cap two from loosening and falling off, improving the stability of the filter cup and the sealing between the end cap two and the cup sleeve, making it safe and reliable. The air tube fixing mechanism can quickly fix the air tube. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the anti-return mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second end cap of this utility model;

[0022] Figure 6 This is an exploded structural diagram of the trachea fixing mechanism of this utility model.

[0023] In the diagram: 1. Cup sleeve; 2. Filter cup; 3. End cap one; 4. End cap two; 5. Ratchet; 6. Check mechanism; 601. Vertical plate; 602. Rotating shaft; 603. Pawl; 604. Torsion spring; 605. Slot; 7. Tracheal tube fixing mechanism; 701. Sleeve; 702. Plum blossom knob; 703. Sealing ring; 704. Snap ring; 705. Alloy ferrule; 706. Release mechanism; 8. Threaded tube; 9. Wrench position; 10. Rubber post; 11. Threaded ring; 12. Positioning ring; 13. Slot; 14. Sealing gasket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6A clean-type pneumatic quick-connect fitting includes a cup sleeve 1, a filter cup 2 is internally engaged with the cup sleeve 1, an end cap 3 is fixedly fixed at one end of the cup sleeve 1, and an end cap 4 is fixedly fixed at the other end of the cup sleeve 1. A ratchet 5 is fixedly fixed on the surface of the end cap 4, and a check mechanism 6 is provided on the surface of the cup sleeve 1 to limit the ratchet 5. An air pipe fixing mechanism 7 is provided at one end of the end cap 4 to fix the air pipe. By setting the cup sleeve 1, the filter cup 2 can be installed and the diameter of the filter cup 2 can be guaranteed. The end caps 3 and 4 at both ends can limit the filter cup 2. The setting of the filter cup 2 can increase the gas filtration area, prevent clogging, and ensure the gas delivery capacity. By threading the end cap 4 to the cup sleeve 1, it is convenient to install and remove the filter cup 2. By removing the end cap 4, it is convenient to remove the filter cup 2 and clean the filtered dust.

[0026] In this embodiment, preferably, the anti-return mechanism 6 includes a vertical plate 601. One side of the vertical plate 601 is fixedly connected to the surface of the cup sleeve 1. A rotating shaft 602 is rotatably connected to one side of the vertical plate 601. A torsion spring 604 is sleeved on the surface of the rotating shaft 602. A pawl 603 is fixedly provided at one end of the rotating shaft 602. The pawl 603 is engaged with a ratchet 5. One end of the torsion spring 604 is engaged with the pawl 603. A slot 605 is provided on one side of the vertical plate 601. The other end of the torsion spring 604 is engaged with the slot 605. The pawl 603 and the ratchet 5 can ensure the unidirectional rotation of the end cap 4. After the end cap 4 is tightened, the torsion spring 604 can support the pawl 603. The pawl 603 can lock the end cap 4 through the ratchet 5, which can prevent the end cap 4 from loosening and falling off, thereby improving the stability of the filter cup 2 and the sealing between the end cap 4 and the cup sleeve 1.

[0027] In this embodiment, preferably, the trachea fixing mechanism 7 includes a sleeve 701, a sealing ring 703 installed inside the sleeve 701, a retaining spring 704 for fixing the trachea on one side of the sealing ring 703, an alloy retaining sleeve 705 at one end of the sleeve 701, a release 706 inside the alloy retaining sleeve 705, and a plum blossom knob 702 fixed on the surface of the sleeve 701. The surface of the plum blossom knob 702 has several anti-slip grooves. By inserting the trachea into the sleeve 701, the retaining spring 704 can clamp the trachea, enabling quick connection of the trachea. By pressing the release 706 and squeezing the retaining spring 704, the trachea can be released, enabling quick disassembly of the trachea. Rotating the sleeve 701 by the plum blossom knob 702 facilitates the rotation of the end cap 4.

[0028] In this embodiment, preferably, a threaded tube 8 is fixedly provided at one end of the end cap 3, and a wrench position 9 is provided on the surface of the threaded tube 8. A plurality of rubber pillars 10 for limiting the filter cup 2 are fixedly provided inside the end cap 3. A deformation groove is provided on one side of the rubber pillar 10. The cup sleeve 1 can be fixedly installed through the threaded tube 8, and the threaded tube 8 can be rotated through the wrench position 9. The rubber pillar 10 can abut against the filter cup 2 to prevent the filter cup 2 from loosening. The setting of the deformation groove can ensure the deformation ability of the rubber pillar 10 and ensure the stability of the filter cup 2 installation.

[0029] In this embodiment, preferably, the other end of the cup sleeve 1 is fixedly provided with a threaded ring 11, the inner wall of the end cap 2 4 is provided with an internal thread, the threaded ring 11 is threadedly connected to the end cap 2 4 through the internal thread, the end cap 2 4 is fixedly provided with a positioning ring 12, the positioning ring 12 is engaged with one end of the filter cup 2, the positioning ring 12 can limit one end of the filter cup 2, the end cap 2 4 is fixedly provided with a retainer 13, the retainer 13 is engaged with a sealing gasket 14, the sealing gasket 14 is coaxial with the cup sleeve 1, the sealing gasket 14 can seal the end cap 2 4 and the cup sleeve 1, and prevent air leakage between the end cap 2 4 and the cup sleeve 1.

[0030] In use, first engage one end of filter cup 2 with the positioning ring 12 inside end cap 2 4, then place filter cup 2 into cup sleeve 1, and press the pawl 603 of check mechanism 6. Rotate end cap 2 4 through the plum blossom knob 702 of air pipe fixing mechanism 7 to fix it to the other end of cup sleeve 1. During rotation, pawl 603 can be released. Pawl 603 can maintain the unidirectional rotation of ratchet 5. After end cap 2 4 is tightened, pawl 603 can lock end cap 2 4 through ratchet 5 to prevent end cap 2 4 from loosening and falling off. Rubber column 10 can abut against filter cup 2 to prevent filter cup 2 from loosening. The setting of deformation groove can ensure the deformation ability of rubber column 10 and ensure the stability of filter cup 2 installation. Sealing gasket 14 can seal between end cap 2 4 and cup sleeve 1 to prevent air leakage between end cap 2 4 and cup sleeve 1.

[0031] After the filter cup 2 is installed, the cup sleeve 1 is fixed to the equipment through the threaded tube 8, and the threaded tube 8 is tightened through the wrench position 9. Then, the air tube is inserted into the sleeve 701. The retaining spring 704 can clamp the air tube, which can quickly connect the air tube. During the gas delivery process, the filter cup 2 can increase the gas filtration area, which is not easy to clog, and can ensure the gas purification capacity and delivery capacity. When it is necessary to disassemble the air tube, press the release 706 and squeeze the retaining spring 704 to release the air tube, which can quickly disassemble the air tube.

[0032] When the filter cup 2 needs to be disassembled and cleaned, press the pawl 603 again to separate it from the ratchet 5, and then loosen the end cap 2 4 to remove the filter cup 2 from the inside of the cup sleeve 1 for cleaning.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clean-type pneumatic quick-connect fitting, comprising a cup sleeve (1), characterized in that: The cup sleeve (1) is internally connected to a filter cup (2). One end of the cup sleeve (1) is fixedly provided with an end cap (3), and the other end of the cup sleeve (1) is fixedly provided with an end cap (4). A ratchet (5) is fixedly provided on the surface of the end cap (4). A check mechanism (6) is provided on the surface of the cup sleeve (1) to limit the ratchet (5). One end of the end cap (4) is provided with a trachea fixing mechanism (7) to fix the trachea.

2. The clean-type pneumatic quick-connect coupling according to claim 1, characterized in that: The check mechanism (6) includes a vertical plate (601), one side of which is fixedly connected to the surface of the cup sleeve (1). A rotating shaft (602) is rotatably connected to one side of the vertical plate (601). A torsion spring (604) is sleeved on the surface of the rotating shaft (602). A pawl (603) is fixedly provided at one end of the rotating shaft (602). The pawl (603) is engaged with a ratchet wheel (5).

3. The clean-type pneumatic quick-connect coupling according to claim 2, characterized in that: One end of the torsion spring (604) is engaged with the pawl (603), and a slot (605) is provided on one side of the upright plate (601). The other end of the torsion spring (604) is engaged with the slot (605).

4. The clean-type pneumatic quick-connect coupling according to claim 1, characterized in that: One end of the end cap (3) is fixedly provided with a threaded tube (8), and the surface of the threaded tube (8) is provided with a wrench position (9). Several rubber columns (10) for limiting the filter cup (2) are fixedly provided inside the end cap (3), and a deformation groove is provided on one side of the rubber column (10).

5. The clean-type pneumatic quick-connect coupling according to claim 1, characterized in that: The other end of the cup sleeve (1) is fixedly provided with a threaded ring (11), and the inner wall of the end cap (4) is provided with an internal thread. The threaded ring (11) is threadedly connected to the end cap (4) through the internal thread.

6. The clean-type pneumatic quick-connect coupling according to claim 1, characterized in that: The trachea fixing mechanism (7) includes a sleeve (701), a sealing ring (703) is installed inside the sleeve (701), a retaining ring (704) for fixing the trachea is provided on one side of the sealing ring (703), an alloy retaining sleeve (705) is provided at one end of the sleeve (701), and a release clip (706) is provided inside the alloy retaining sleeve (705).

7. The clean-type pneumatic quick-connect coupling according to claim 6, characterized in that: The sleeve (701) is fixedly provided with a plum blossom knob (702), and the surface of the plum blossom knob (702) is provided with several anti-slip grooves.

8. The clean-type pneumatic quick-connect coupling according to claim 1, characterized in that: The end cap 2 (4) is fixedly provided with a positioning ring (12), which is engaged with one end of the filter cup (2). The end cap 2 (4) is fixedly provided with a card seat (13), and a sealing gasket (14) is engaged with the inside of the card seat (13). The sealing gasket (14) is coaxial with the cup sleeve (1).

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