CN114909535A

CN114909535A - Quick connector

Info

Publication number: CN114909535A
Application number: CN202210348035.9A
Authority: CN
Inventors: 唐洪波; 薛源; 张勇; 刘金贵; 王均增
Original assignee: Jiangsu Chnv Instrument Control Engineering Co ltd; China Nuclear Power Engineering Co Ltd
Current assignee: Jiangsu Chnv Instrument Control Engineering Co ltd; China Nuclear Power Engineering Co Ltd
Priority date: 2022-04-03
Filing date: 2022-04-03
Publication date: 2022-08-16
Anticipated expiration: 2042-04-03
Also published as: CN114909535B

Abstract

The invention discloses a quick connector, and belongs to the technical field of pipe joints. Including the first quick connector body and the second quick connector body, the one end of the first quick connector body and the one end swing joint of the second quick connector body, the activity is provided with anticreep and clamps the device between the one end of the first quick connector body and the one end of the second quick connector body, anticreep clamps the device including fixed cover establish the outer fixed card sleeve pipe on first quick connector body one end periphery wall and fixed cover establish the snap ring seat on the second quick connector body one end periphery wall, the outside movable sleeve of outer fixed card sleeve pipe is equipped with the rand, a plurality of L shape card feet of periphery wall along circumference equipartition of rand, be provided with a plurality of card foot grooves with L shape card foot one-to-one on the snap ring seat, L shape card foot activity is inserted and is established in the card foot inslot of relevant position, the other end activity of the first quick connector body is provided with quick connector seat. The invention has the advantages of protecting the position when in use, avoiding deformation and air leakage caused by displacement, and the like.

Description

Quick connector

Technical Field

The invention relates to the technical field of pipe joints, in particular to a quick connector.

Background

In the prior art, although the form of the quick connector can improve the assembling speed and the sealing performance of the joint, if the quick connector is used for a long time and is lack of a fixing and protecting device in use, the phenomena of looseness and leakage of the quick connector and a connecting pipeline can be caused, and the normal operation can not be ensured. Generally be connected the pipeline of using with quick connector and be the hose, most of pipelines are connected the back with quick connector and all are not protected fixing device, consequently the angle that keeps when being connected between pipeline after the installation and the quick connector is also unset, along with long-time continuous use and the removal of pipeline in the use, the angle that leads to quick connector and pipe connection shifts more and more easily, finally cause in the quick connector and the pipeline between the junction warp not hard up, lead to appearing leaking the phenomenon, finally influence the operation effect.

Disclosure of Invention

In view of the technical shortcomings, the invention aims to provide a quick connector which can protect the position when in use and avoid deformation and air leakage caused by displacement.

In order to solve the technical problems, the invention adopts the following technical scheme: the invention provides a quick connector, which comprises a first quick connector body and a second quick connector body, wherein one end of the first quick connector body is movably connected with one end of the second quick connector body, an anti-disengagement device is movably arranged between one end of the first quick connector body and one end of the second quick connector body and comprises an outer fixed clamping sleeve fixedly sleeved on the outer peripheral wall of one end of the first quick connector body and a clamping ring seat fixedly sleeved on the outer peripheral wall of one end of the second quick connector body, a clamping ring is movably sleeved outside the outer fixed clamping sleeve, a plurality of L-shaped clamping pins are uniformly distributed on the outer peripheral wall of the clamping ring along the circumferential direction, a plurality of clamping pin grooves which are in one-to-one correspondence with the L-shaped clamping pins are arranged on the clamping ring seat, the L-shaped clamping pins are movably inserted in the clamping pin grooves at corresponding positions, a quick connector seat is movably arranged at the other end of the first quick connector body, and a main connecting pipe is fixedly arranged on the quick connector seat in a penetrating way, the one end intercommunication of main connecting pipe is provided with many way pipes, and many way pipes are fixed to be set up on fast spigot joint seat, it is provided with for the protection tube cap still to lead to the activity on the pipe, the bottom of protection tube cap is provided with a plurality of and the breach groove of each end one-to-one of many way pipes, and each end of many way pipe is located corresponding breach inslot respectively, the other end activity of main connecting pipe is provided with the pipe and blocks up, all be provided with the connecting pipe device on the wall of the opposite both sides of fast spigot joint seat, the other end of the first body of fast spigot joint is linked together through connecting pipe device and many way pipe.

Preferably, one end of the outer fixing clamping sleeve far away from the second quick plug-in connector body is a truncated cone-shaped section, one end of the outer fixing clamping sleeve near the second quick plug-in connector body is a cylindrical body section, a plurality of anti-slip lug grooves are circumferentially arranged on the outer peripheral wall of the cylindrical body section of the outer fixing clamping sleeve at intervals, the bottom surfaces of the anti-slip lug grooves are inclined, the clamping ring is of a circular ring-shaped structure, a plurality of anti-slip lugs one-to-one corresponding to the anti-slip lug grooves are uniformly distributed on the inner peripheral wall of the clamping ring, the anti-slip lugs are respectively arranged in the corresponding anti-slip lug grooves in a sliding manner, the clamping pin grooves comprise clamping pin groove seats, the clamping pin groove seats are uniformly distributed along the circumferential direction of the outer peripheral wall of the clamping ring, one side wall of the clamping pin groove seat far away from the clamping ring is in an open shape, a stop rod is fixedly arranged at one end in the open of the clamping pin groove seat, the vertical end of the L-shaped clamping pin is movably inserted in the open end of the side wall of the clamping pin groove seat, and the horizontal end of the L-shaped clamping pin is abutted against the clamping pin groove seat and can slide, the anti-slip lug is abutted against the bottom surface in the anti-slip lug groove, so that the position of the clamping ring can be fixed, and the effect of preventing the clamping ring from loosening is achieved.

Preferably, the first quick connector body is an L-shaped elbow structure, the movable clamp at the outer corner of the first quick connector body is provided with an elbow protection device, the elbow protection device comprises a fixed insertion plate arranged at the outer corner of the first quick connector body, an L-shaped outer protection plate is movably arranged outside the insertion plate, an arc-shaped groove matched with the outer corner of the first quick connector body in shape and size is arranged in an L-shaped opening of the L-shaped outer protection plate, an insertion plate groove is arranged in an arc-shaped opening of the arc-shaped groove, and the insertion plate is movably inserted in the insertion plate groove.

Preferably, the connecting pipe device includes the connecting pipe base, the connecting pipe base is fixed to be set up on the lateral wall of quick connector socket, be provided with down the draw-in groove on the top surface of connecting pipe base, the other end of the first quick connector socket body is linked together through the one end that high pressure union connects with many siphunculuses, the external fixation cover that high pressure union connects is equipped with the outer protective sheath with draw-in groove shape looks adaptation down, the lower extreme activity card of outer protective sheath is established under in the draw-in groove, the setting of connecting pipe device can play firm effect to the in use of the first quick connector socket body, avoid or reduce the not hard up phenomenon that appears, and then can guarantee reliability and security in the use.

Preferably, the top surface of the connecting pipe base is movably connected with a connecting pipe clamping cover through a plurality of connecting bolts, the connecting pipe clamping cover is provided with an upper clamping groove matched with the shape of the outer protective sleeve, the upper end of the outer protective sleeve is movably clamped in the upper clamping groove, both sides of the upper clamping groove are provided with convex plates, the top surface of the connecting pipe base is provided with convex plate grooves corresponding to the convex plates one by one, when the connecting pipe clamping cover is connected with the connecting pipe base through the connecting bolt, the convex plates are respectively inserted into the convex plate grooves at corresponding positions, the upper end and the lower end of the outer protective sleeve are respectively clamped in the upper clamping groove and the lower clamping groove, a third internal threaded hole is arranged on the side wall of the connecting pipe clamping cover close to the other end of the first quick-plugging connector body, the connecting pipe clamping cover is connected with the connecting pipe base through the connecting bolt, and the outer protective sleeve can be effectively fixed between the upper clamping groove and the lower clamping groove, so that the leakage phenomenon at the joint of the high-pressure union joint is avoided.

Preferably, the outer part of one end of the first quick connector body is movably sleeved with a plurality of clamping sleeves, an outer connecting screw rod is movably arranged between two adjacent clamping sleeves, each clamping sleeve comprises an inner clamping sleeve ring, the inner clamping sleeve ring is movably sleeved outside one end of the first quick connector body, an outer clamping sleeve ring is coaxially and rotatably arranged on the outer peripheral wall of the inner clamping sleeve ring, a first screw hole seat is fixedly arranged on the outer peripheral wall of the outer clamping sleeve ring, a first internal thread through hole is arranged on the first screw hole seat, two ends of the outer connecting screw rod are respectively in threaded connection with the first internal thread through holes on the two adjacent first screw hole seats, the central line of the outer connecting screw rod is parallel to the central line of the first quick connector body, before use, the adjacent clamping sleeves outside the first quick connector body are connected through the outer connecting screw rod, and the bending phenomenon of the first quick connector body in use can be avoided, the inner part of the first quick connector is unsmooth, and the use effect is affected.

Preferably, a second screw hole seat is fixedly arranged at the horizontal end of the L-shaped outer protection plate, a second internal thread through hole is arranged on the second screw hole seat, the diameters of the first internal thread through hole, the second internal thread through hole and the third internal thread hole are the same, and the distance from the first internal thread through hole, the second internal thread through hole and the third internal thread hole to the center line of the first quick-plug connector body is the same as the distance from the first internal thread through hole to the center line of the first quick-plug connector body; on the other hand accessible is connected the outer screw rod and is connected the first fast plug connector external portion's chucking cover and the second internal thread through-hole on the second screw rod hole seat to fix L shape outer protection shield, prevent that it from droing, can play better protection to the first outer corner of fast plug connector body.

Preferably, the one end slope of anti-skidding lug sets up on the internal perisporium of rand, the contained angle between the other end of anti-skidding lug and the axial lead of rand is between 20 degrees to 35, the other end of anti-skidding lug is inconsistent with the bottom surface in the anti-skidding lug inslot, and the other end of anti-skidding lug keeps away from the fast socket joint of second body, be convenient for slide adjusting rand position back on the first fast socket joint body, the other end of anti-skidding lug can be inconsistent with the bottom surface in the anti-skidding lug inslot, thereby play the effect that prevents the rand not hard up, and then can keep the fastness of being connected between the fast socket joint of first fast socket joint body and second.

Preferably, the second quick-plug connector body is movably sleeved with a plurality of connector protective sleeves, each connector protective sleeve comprises a middle tube, two ends of each middle tube are fixedly connected with outer ring bodies, a left supporting seat and a right supporting seat are arranged on the outer wall of each middle tube at intervals, a rotating shaft with a torsion spring is rotatably arranged between the left supporting seat and the right supporting seat, a pressing plate is fixedly arranged on the rotating shaft with the torsion spring, a pressing rod is fixedly arranged on the pressing plate, the pressing rod movably penetrates through the outer wall of each middle tube to abut against the outer peripheral wall of the second quick-plug connector body, and therefore when the second quick-plug connector is used, the outer ring body can prevent objects in the external environment from directly colliding with the outer wall of the second quick-insertion joint body, thereby playing a role of protecting the second quick plug connector body, simultaneously driving the pressing plate and the pressing rod through the rotating shaft with the torsional spring, so that the pressing rod is contacted with the peripheral wall of the second quick plug connector body, and the fixing effect on the connector protective sleeve is achieved.

Preferably, the outer ring body is larger than the middle pipe in outer diameter, and the outer ring body and the pressure rod are made of rubber materials, so that when the quick-inserting joint is used, the outer ring body can prevent objects in the external environment from directly colliding with the outer wall of the second quick-inserting joint body, and the second quick-inserting joint body is protected.

The invention has the beneficial effects that: the anti-releasing device can ensure the firmness of connection between the first quick plug connector body and the second quick plug connector body, namely, the first quick plug connector body and the second quick plug connector body can be protected in position when in use, and deformation and air leakage caused by displacement are avoided; the clamping sleeve and the bent pipe protection device are arranged on the first quick plug connector body, so that the phenomenon that the first quick plug connector body is bent in use can be avoided, the inner part of the first quick plug connector body is unsmooth, the use effect is influenced, and meanwhile, the outer corner of the first quick plug connector body can be better protected; be provided with the connecting pipe device on the opposite both sides wall of quick connector socket, be convenient for according to the use needs can directly be connected the pipeline not have other ends of connecting the connecting pipe device on can not passing through the connecting pipe device with many siphunculums.

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, 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 the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a quick connector according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a position of a protruding board slot of a quick connector according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a board inserting position of a quick connector according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a position of an anti-slip tab slot of a quick connector according to an embodiment of the present invention;

FIG. 5 is a schematic view of a position of an anti-slip tab of a quick connector according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating a position of a protruding plate of a quick connector according to an embodiment of the present invention;

fig. 7 is a schematic view of a clamping sleeve of a quick connector according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an elbow protection device of a quick connector according to an embodiment of the present invention;

FIG. 9 is a schematic diagram illustrating a position of a collar of a quick connector according to an embodiment of the present invention;

FIG. 10 is an enlarged view of portion A of FIG. 9;

fig. 11 is a schematic structural view of a joint protection sleeve of a quick connector according to an embodiment of the present invention;

description of reference numerals: 1. a first quick-connect head; 2. a second quick-connect head; 3. a device for preventing the card from falling off; 31. the clamping sleeve is fixed outside; 311. an anti-slip tab slot; 32. a collar seat; 321. a clamping foot groove; 3211. a clamping foot slot seat; 3212. a stop lever; 33. a collar; 331. an L-shaped clamping pin; 332. an anti-slip tab; 4. a quick-plug connector base; 41. a main connection pipe; 42. a multi-pass tube; 421. a protective tube cover; 422. a notch groove; 43. pipe blockage; 5. a connecting pipe device; 51. a connecting pipe base; 52. a lower clamping groove; 53. the connecting pipe is clamped and covered; 531. a connecting bolt; 532. an upper clamping groove; 533. a convex plate; 534. a lug plate groove; 535. a third internally threaded bore; 54. a high pressure union joint; 541. an outer protective sheath; 6. a clamping sleeve; 61. clamping the inner ring; 611. connecting an external screw rod; 62. an outer ring of the clamping sleeve; 63. a first screw hole seat; 64. a first internally threaded through hole; 8. a bend pipe protection device; 81. inserting plates; 82. an L-shaped outer protective plate; 821. a second screw hole seat; 822. a second internally threaded through hole; 83. an arc-shaped slot; 84. a board inserting groove; 9. a joint protection sleeve; 91. an intermediate pipe; 92. an outer ring body; 93. a left support seat; 94. a right support seat; 95. a rotating shaft with a torsion spring; 96. pressing a plate; 97. a pressure lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows: as shown in fig. 1 to 11, the present invention provides a quick connector, comprising a first quick connector body 1 and a second quick connector body 2, wherein one end of the first quick connector body 1 is movably connected with one end of the second quick connector body 2, an anti-releasing device 3 is movably arranged between one end of the first quick connector body 1 and one end of the second quick connector body 2, the anti-releasing device 3 comprises an outer fixed clamping sleeve 31 fixedly sleeved on the outer peripheral wall of one end of the first quick connector body 1 and a clamping ring seat 32 fixedly sleeved on the outer peripheral wall of one end of the second quick connector body 2, a clamping ring 33 is movably sleeved on the outer fixed clamping sleeve 31, a plurality of L-shaped clamping feet 331 are uniformly distributed on the outer peripheral wall of the clamping ring 33 along the circumferential direction, a plurality of clamping foot grooves 321 corresponding to the L-shaped clamping feet 331 one by one are arranged on the clamping ring seat 32, the L-shaped clamping feet 331 are movably inserted in the clamping foot grooves 321 at corresponding positions, a quick connector 4 is arranged at the other end of the first quick connector body 1, a main connecting pipe 41 is fixedly arranged on the quick-insertion connector base 4 in a penetrating mode, one end of the main connecting pipe 41 is communicated with a multi-way pipe 42, the multi-way pipe 42 is fixedly arranged on the quick-insertion connector base 4, a protective pipe cover 421 is movably arranged on the multi-way pipe 42, a plurality of notch grooves 422 which correspond to the ends of the multi-way pipe 42 in a one-to-one mode are formed in the bottom of the protective pipe cover 421, the ends of the multi-way pipe 42 are respectively located in the corresponding notch grooves 422, a pipe plug 43 is movably arranged at the other end of the main connecting pipe 41, connecting pipe devices 5 are arranged on two opposite side walls of the quick-insertion connector base 4, and the other end of the first quick-insertion connector body 1 is communicated with the multi-way pipe 42 through the connecting pipe devices 5; the end of the outer fixing clip sleeve 31 far away from the second quick plug-in connector body 2 is a truncated cone-shaped section, the end close to the second quick plug-in connector body 2 is a cylinder section, a plurality of anti-skid lug grooves 311 are circumferentially arranged on the outer peripheral wall of the cylinder section of the outer fixing clip sleeve 31 at intervals, the bottom surface in the anti-skid lug grooves 311 is inclined, the clamping ring 33 is of a circular ring-shaped structure, a plurality of anti-slip lugs 332 which are in one-to-one correspondence with the anti-slip lug grooves 311 are uniformly distributed on the inner peripheral wall of the collar 33, the anti-slip lugs 332 are respectively arranged in the corresponding anti-slip lug grooves 311 in a sliding manner, the foot clamping grooves 321 comprise foot clamping groove seats 3211, the foot clamping groove seats 3211 are uniformly distributed along the circumferential direction of the outer peripheral wall of the collar 33, one side wall of the foot clamping groove seat 3211, which is far away from the collar 33, is open, a stop rod 3212 is fixedly arranged at one end in the opening of the foot clamping groove seat 3211, the vertical end of the L-shaped foot 331 is movably inserted into the side wall opening of the foot clamping groove seat 3211, and the horizontal end of the L-shaped foot 331 is abutted against the foot clamping groove seat 3211; the connecting pipe device 5 comprises a connecting pipe base 51, the connecting pipe base 51 is fixedly arranged on the side wall of the quick connector socket 4, a lower clamping groove 52 is arranged on the top surface of the connecting pipe base 51, the other end of the first quick connector body 1 is communicated with one end of the multi-way pipe 42 through a high-pressure union joint 54, an outer protective sleeve 541 which is matched with the lower clamping groove 52 in shape is fixedly sleeved outside the high-pressure union joint 54, and the lower end of the outer protective sleeve 541 is movably clamped in the lower clamping groove 52; the top surface of the connecting pipe base 51 is movably connected with a connecting pipe clamping cover 53 through a plurality of connecting bolts 531, the connecting pipe clamping cover 53 is provided with an upper clamping groove 532 matched with the shape of the outer protective sleeve 541, the upper end of the outer protective sleeve 541 is movably clamped in the upper clamping groove 532, both sides of the upper clamping groove 532 are provided with convex plates 533, the top surface of the connecting pipe base 51 is provided with convex plate grooves 534 corresponding to the convex plates 533 one by one, and the side wall of the connecting pipe clamping cover 53 close to the other end of the first quick-insertion connector body 1 is provided with a third internal threaded hole 535;

the multi-way pipe 42 is at least a four-way pipe, and the connecting pipe devices 5 are arranged on the two opposite side walls of the quick connector base 4, so that the number of the interface ends of the multi-way pipe 42 is larger than that of the connecting pipe devices 5, and the pipeline can be directly connected with other ends of the multi-way pipe 42, which are not connected with the connecting pipe devices 5, without passing through the connecting pipe devices 5 according to the use requirement; when the quick connector is used, the quick connector base 4 can be fixed at a position to be used (a plurality of bolts or threaded holes can be formed in the quick connector base 4 for convenient installation), the other end of the first quick connector body 1 is communicated with the multi-way tube 42 through the connecting tube device 5 as required (namely, the other end of the first quick connector body 1 is communicated with one end of the multi-way tube 42 through the high-pressure union joint 54, the outer protective sleeve 541 which is matched with the lower clamping groove 52 in shape is fixedly sleeved outside the high-pressure union joint 54, the lower end of the outer protective sleeve 541 is clamped into the lower clamping groove 52 on the top surface of the connecting tube base 51, the connecting tube clamping cover 53 is connected to the connecting tube base 51 through the connecting bolts 531, at the moment, the upper end of the outer protective sleeve 541 is clamped into the upper clamping groove 532 on the connecting tube clamping cover 53, and the convex plates 533 are respectively inserted into the convex plate grooves 534, the convex plates 534 and the convex plates 533 at the corresponding positions, The upper end and the lower end of the outer protective sleeve 541 are respectively clamped in the upper clamping groove 532 and the lower clamping groove 52, so that the positions of the high-voltage union joint 54 and the outer protective sleeve 541 can be fixed through the outer protective sleeve 541, and the phenomenon of falling off or position looseness can be prevented when the high-voltage union joint is used); after connecting one end of the first quick-plug connector body 1 with one end of the second quick-plug connector body 2, in order to prevent the first quick-plug connector body 1 and the second quick-plug connector body 2 from falling off or shifting, the collar 33 sleeved outside the outer fixed snap-fit sleeve 31 can slide toward the second quick-plug connector body 2, at this time, the anti-slip tabs 332 arranged on the inner peripheral wall of the collar 33 can respectively slide in the anti-slip tab grooves 311 at the corresponding positions, after the L-shaped snap-fit legs 331 are respectively inserted into the snap-fit leg grooves 321 at the corresponding positions, the horizontal ends of the L-shaped snap-fit legs 331 can be hooked on the snap-fit leg groove seats 3211 (the opposite positions of the stop rods 3212), and at this time, the collar 33 can be connected with the snap-fit leg seats 32.

Example two: on the basis of the first embodiment, the first quick-plug connector body 1 is of an L-shaped bent pipe structure, the bent pipe protection device 8 is movably clamped at the outer corner of the first quick-plug connector body 1, the bent pipe protection device 8 comprises an insertion plate 81 fixedly arranged at the outer corner of the first quick-plug connector body 1, an L-shaped outer protection plate 82 is movably arranged outside the insertion plate 81, an arc-shaped groove 83 which is matched with the outer corner of the first quick-plug connector body 1 in shape and size is arranged in an L-shaped opening of the L-shaped outer protection plate 82, an insertion plate groove 84 is arranged in an arc-shaped opening of the arc-shaped groove 83, and the insertion plate 81 is movably inserted in the insertion plate groove 84; the installation of the elbow protecting device 8 can protect the outer corner of the first quick connector body 1 in use, the inserting plate 81 can be directly inserted into the inserting plate groove 84 during installation, at the moment, the L-shaped outer protecting plate 82 can be wrapped outside the outer corner of the first quick connector body 1, and the elbow protecting device 8 can avoid the phenomenon that the outer corner of the first quick connector body 1 is abraded and the first quick connector body 1 leaks during use; in order to improve the firmness of the elbow protection device 8 after installation, the horizontal end of the L-shaped outer protection plate 82 is fixedly provided with a second screw hole seat 821, a second internal thread through hole 822 is arranged on the second screw hole seat 821, the diameters of the first internal thread through hole 64, the second internal thread through hole 822 and the third internal thread hole 535 are all the same, and the distance from the first internal thread through hole 64, the second internal thread through hole 822 and the third internal thread hole 535 to the center line of the first quick-insertion joint body 1 is the same as the distance from the first internal thread through hole 64 to the center line of the first quick-insertion joint body 1;

the outer part of one end of the first quick plug connector body 1 is movably sleeved with a plurality of clamping sleeves 6, an outer connecting screw rod 611 is movably arranged between every two adjacent clamping sleeves 6, each clamping sleeve 6 comprises an inner clamping sleeve ring 61, each clamping sleeve ring 61 is movably sleeved outside one end of the first quick plug connector body 1, an outer clamping sleeve ring 62 is coaxially and rotatably arranged on the outer peripheral wall of each clamping sleeve ring 61, a first screw hole seat 63 is fixedly arranged on the outer peripheral wall of each clamping sleeve ring 62, a first internal thread through hole 64 is formed in each first screw hole seat 63, two ends of each outer connecting screw rod 611 are respectively in threaded connection with first internal thread through holes 64 in every two adjacent first screw hole seats 63, and the central line of each outer connecting screw rod 611 is parallel to the central line of the first quick plug connector body 1; on one hand, the adjacent clamping sleeves 6 outside the first quick plug connector body 1 are connected through the connecting outer screw rod 611 before use, so that the phenomenon that the first quick plug connector body 1 is bent in use, which causes unsmooth inside the first quick plug connector body 1 and influences use effect, can be avoided; on the other hand, the outer connecting screw 611 can connect the clamping sleeve 6 outside the first quick connector body 1 with the second internal screw through hole 822 on the second screw hole seat 821, so as to fix the L-shaped outer protection plate 82, prevent the L-shaped outer protection plate from falling off, and better protect the outer corner of the first quick connector body 1; after the clamping sleeve 6 and the elbow protector 8 are both mounted on the first quick connector body 1, the connecting outer screw 611 can be connected to the third inner screw 535 on the side wall of the connecting pipe clamping cover 53 through the first inner screw 64 and the second inner screw 822, so as to improve the fixing firmness of the clamping sleeve 6 and the elbow protector 8.

Example three: on the basis of the first embodiment, one end of the anti-slip lug 332 is obliquely arranged on the inner peripheral wall of the collar 33, an included angle between the other end of the anti-slip lug 332 and the axial lead of the collar 33 is 20 degrees to 35 degrees, the other end of the anti-slip lug 332 is abutted against the bottom surface in the anti-slip lug groove 311, and the other end of the anti-slip lug 332 is far away from the second quick-plug connector body 2, so that after the collar 33 is connected with the collar seat 32, the anti-slip lug 332 is abutted against the bottom surface in the anti-slip lug groove 311 through the other end of the anti-slip lug 332, the function of preventing the collar 33 from loosening can be achieved, and the firmness of connection between the first quick-plug connector body 1 and the second quick-plug connector body 2 can be ensured.

Example four: on the basis of the first embodiment, a joint protection sleeve 9 is provided, the joint protection sleeve 9 includes a middle tube 91, two ends of the middle tube 91 are fixedly connected with outer ring bodies 92, a left support seat 93 and a right support seat 94 are arranged on the outer wall of the middle tube 91 at intervals, a rotating shaft 95 with a torsion spring is rotatably arranged between the left support seat 93 and the right support seat 94, a pressing plate 96 is fixedly arranged on the rotating shaft 95 with the torsion spring, a pressing rod 97 is fixedly arranged on the pressing plate 96, the pressing rod 97 movably penetrates through the outer wall of the middle tube 91 to abut against the outer peripheral wall of the second quick-plug connector body 2, so that when the joint protection device is used, the outer ring bodies 92 can prevent objects in the external environment from directly colliding and abrading against the outer wall of the second quick-plug connector body 2, thereby protecting the second quick-plug connector body 2, and the pressing plate 96 and the pressing rod 97 can be driven by the rotating shaft 95 with the torsion spring, so that the pressing rod 97 abuts against the outer peripheral wall of the second quick-plug connector body 2, which acts as a fixation for the joint boot 9.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A quick connector is characterized by comprising a first quick connector body (1) and a second quick connector body (2), wherein one end of the first quick connector body (1) is movably connected with one end of the second quick connector body (2), an anti-falling clamp device (3) is movably arranged between one end of the first quick connector body (1) and one end of the second quick connector body (2), the anti-falling clamp device (3) comprises an outer fixed clamp sleeve (31) fixedly sleeved on the outer peripheral wall of one end of the first quick connector body (1) and a clamp ring seat (32) fixedly sleeved on the outer peripheral wall of one end of the second quick connector body (2), a clamp ring (33) is movably sleeved on the outer fixed clamp sleeve (31), a plurality of L-shaped clamp feet (331) are uniformly distributed on the outer peripheral wall of the clamp ring (33) along the circumferential direction, a plurality of clamp foot grooves (321) corresponding to the L-shaped clamp feet (331) one by one are arranged on the clamp ring seat (32), the L-shaped clamping pins (331) are movably inserted into clamping pin grooves (321) at corresponding positions, the other end of the first quick plug connector body (1) is movably provided with a quick plug connector base (4), a main connecting pipe (41) is fixedly arranged on the quick plug connector base (4) in a penetrating manner, one end of the main connecting pipe (41) is communicated with a multi-way pipe (42), the multi-way pipe (42) is fixedly arranged on the quick plug connector base (4), a protective pipe cover (421) is also movably arranged on the multi-way pipe (42), the bottom of the protective pipe cover (421) is provided with a plurality of notch grooves (422) which are in one-to-one correspondence with the ends of the multi-way pipe (42), the ends of the multi-way pipe (42) are respectively positioned in the corresponding notch grooves (422), the other end of the main connecting pipe (41) is movably provided with a pipe plug (43), and connecting pipe devices (5) are respectively arranged on two opposite side walls of the quick plug connector base (4), the other end of the first quick plug connector body (1) is communicated with a multi-way pipe (42) through a connecting pipe device (5).

2. The quick connector according to claim 1, wherein one end of the outer fixing snap sleeve (31) far away from the second quick connector body (2) is a truncated cone-shaped section, one end of the outer fixing snap sleeve close to the second quick connector body (2) is a cylindrical section, a plurality of anti-slip tab slots (311) are circumferentially arranged on the outer circumferential wall of the cylindrical section of the outer fixing snap sleeve (31) at intervals, the bottom surfaces in the anti-slip tab slots (311) are inclined, the collar (33) is of a circular ring structure, a plurality of anti-slip tabs (332) corresponding to the anti-slip tab slots (311) are uniformly distributed on the inner circumferential wall of the collar (33), the anti-slip tabs (332) are respectively arranged in the corresponding anti-slip tab slots (311) in a sliding manner, the snap pin slots (321) comprise snap pin slot seats (3211), the snap pin slot seats (1) are uniformly distributed along the circumferential direction of the collar (33), one side wall of the snap pin slot seats (3211) far away from the collar (33) is open, a stop lever (3212) is fixedly arranged at one end of the opening of the clip slot seat (3211), the vertical end of the L-shaped clip (331) is movably inserted into the side wall opening of the clip slot seat (3211), and the horizontal end of the L-shaped clip (331) is abutted against the clip slot seat (3211).

3. The quick connector according to claim 1, wherein the first quick connector body (1) is of an L-shaped elbow structure, the elbow protector (8) is movably clamped at the outer corner of the first quick connector body (1), the elbow protector (8) comprises an insert plate (81) fixedly arranged at the outer corner of the first quick connector body (1), an L-shaped outer protective plate (82) is movably arranged outside the insert plate (81), an arc-shaped groove (83) which is matched with the outer corner of the first quick connector body (1) in shape and size is arranged in the L-shaped opening of the L-shaped outer protective plate (82), an insert plate groove (84) is arranged in the arc-shaped opening of the arc-shaped groove (83), and the insert plate (81) is movably inserted in the insert plate groove (84).

4. The quick connector according to claim 3, wherein the connecting pipe device (5) comprises a connecting pipe base (51), the connecting pipe base (51) is fixedly arranged on the side wall of the quick connector base (4), a lower clamping groove (52) is arranged on the top surface of the connecting pipe base (51), the other end of the first quick connector body (1) is communicated with one end of the multi-way pipe (42) through a high-pressure union connector (54), an outer protective sleeve (541) matched with the lower clamping groove (52) in shape is fixedly sleeved outside the high-pressure union connector (54), and the lower end of the outer protective sleeve 541 is movably clamped in the lower clamping groove (52).

5. The quick connector as claimed in claim 4, wherein the top surface of the connecting tube base (51) is movably connected with a connecting tube locking cap (53) by a plurality of connecting bolts (531), the connecting tube locking cap (53) is provided with an upper locking groove (532) adapted to the shape of the outer protective sleeve (541), the upper end of the outer protective sleeve (541) is movably locked in the upper locking groove (532), both sides of the upper locking groove (532) are provided with the protruding plates (533), the top surface of the connecting tube base (51) is provided with the protruding plate grooves (534) corresponding to the protruding plates (533) one by one, when the connecting tube locking cap (53) is connected with the connecting tube base (51) by the connecting bolts (531), the protruding plates (533) are respectively inserted into the protruding plate grooves (534) at the corresponding positions, and the upper end and the lower end of the outer protective sleeve (541) are respectively locked in the upper locking groove (532) and the lower locking groove (52), and a third internal threaded hole (535) is formed in the side wall of the connecting pipe clamping cover (53) close to the other end of the first quick plug-in connector body (1).

6. The quick connector according to claim 5, wherein a plurality of clamping sleeves (6) are movably sleeved outside one end of the first quick connector body (1), an outer connecting screw rod (611) is movably arranged between two adjacent clamping sleeves (6), each clamping sleeve (6) comprises an inner clamping sleeve ring (61), the inner clamping sleeve ring (61) is movably sleeved outside one end of the first quick connector body (1), an outer clamping sleeve ring (62) is coaxially and rotatably arranged on the outer peripheral wall of the inner clamping sleeve ring (61), a first screw rod hole seat (63) is fixedly arranged on the outer peripheral wall of the outer clamping sleeve ring (62), a first internal screw thread through hole (64) is formed in the first screw rod hole seat (63), two ends of the outer connecting screw rod (611) are respectively in threaded connection with the first internal screw thread through holes (64) in two adjacent first screw rod hole seats (63), and the central line of the connecting outer screw rod (611) is parallel to the central line of the first quick-plug connector body (1).

7. The quick-plugging connector as claimed in claim 6, wherein a second screw hole seat (821) is fixedly arranged at the horizontal end of the L-shaped outer protection plate (82), a second internal threaded through hole (822) is arranged on the second screw hole seat (821), the diameters of the first internal threaded through hole (64), the second internal threaded through hole (822) and the third internal threaded hole (535) are all the same, and the distance from the first internal threaded through hole (64), the second internal threaded through hole (822) and the third internal threaded hole (535) to the center line of the first quick-plugging connector body (1) is the same as the distance from the first internal threaded through hole (64) to the center line of the first quick-plugging connector body (1).

8. The quick connector according to claim 2, wherein one end of the anti-slip tab (332) is obliquely arranged on the inner peripheral wall of the collar (33), the angle between the other end of the anti-slip tab (332) and the axial line of the collar (33) is 20 degrees to 35 degrees, the other end of the anti-slip tab (332) abuts against the bottom surface in the anti-slip tab groove (311), and the other end of the anti-slip tab (332) is away from the second quick connector body (2).

9. The quick connector according to claim 1, wherein a plurality of connector protective sleeves (9) are movably sleeved outside the second quick connector body (2), each connector protective sleeve (9) comprises a middle tube (91), both ends of each middle tube (91) are fixedly connected with outer ring bodies (92), left supporting seats (93) and right supporting seats (94) are arranged on the outer wall of each middle tube (91) at intervals, a rotating shaft (95) with a torsion spring is rotatably arranged between each left supporting seat (93) and each right supporting seat (94), a pressing plate (96) is fixedly arranged on each rotating shaft (95) with the torsion spring, a pressing rod (97) is fixedly arranged on each pressing plate (96), and each pressing rod (97) movably penetrates through the outer wall of each middle tube (91) to abut against the outer peripheral wall of the second quick connector body (2).

10. A quick-connect coupling according to claim 9, characterised in that the outer ring (92) has an outer diameter greater than the outer diameter of the intermediate tube (91), and in that the outer ring (92) and the pressure rod (97) are made of rubber material.