Quick connector convenient to push-in, connect, self-lock and unlock

Abstract

The utility model discloses a quick connector convenient for push-in connection self-locking and unlocking, which comprises a male head and a female head, the male head is provided with a shaft ring, and one side of the shaft ring far away from the female head is a locking surface; the female head comprises a main body and a locking block; the main body comprises a locking part and a sealing part; the locking part is provided with a guide groove matched with the locking block, and the side, close to the sealing part, of the guide groove is provided with anti-disengaging teeth for preventing the locking block from disengaging from the guide groove. And the sealing part is provided with a cavity into which the male head is inserted. During unlocking, the unlocking piece is pushed to be close to the female connector, after the locking block is completely jacked up and locking of the locking block and the male connector is released, force is continuously applied to the unlocking piece in the same direction, the male connector and the female connector can be separated, the whole unlocking process is more continuous and simpler, and the unlocking process is more convenient and smoother.

Description

Technical Field

[0001] The utility model relates to the field of pipeline connection, in particular to a quick connector which is convenient for push-in connection, self-locking and unlocking. Background Art

[0002] At present, the hoses in the ceramic body of smart toilets on the market are mainly connected by conventional nuts to the corresponding male connectors. Due to the internal structure limitations, the hose assembly and connection are difficult. Therefore, a quick connection device with simple structure, small installation space, easy disassembly and assembly, and self-locking protection is needed.

[0003] The existing Chinese invention patent with application publication number CN116734065A discloses a self-locking quick connector and its self-locking and unlocking method, including a female head and a male head, the male head can be moved along the axis and inserted into the female head; the male head is provided with an annular groove, an annular step and a receiving groove forming a buckle structure, and the female head includes a main body, a claw and a sleeve; the buckle of the male head and the claw of the female head are engaged to form self-locking.

[0004] However, the above patent still has the following defects: when unlocking, it is necessary to first push the male head until the third end face contacts the marked part, and then move the sleeve in the direction indicated by the arrow, so that the retaining bar and the convex rib contact, driving the C ring to move with the sleeve. As the C ring moves, the reinforcing rib contacts the upper edge of the window, forcing the claw to expand; the male head is able to withdraw from the female head. The entire unlocking process applies force to the male head and the sleeve in different directions, so it cannot be operated continuously, and the steps are relatively cumbersome, making the unlocking process inconvenient and not smooth. Utility Model Content

[0005] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the utility model is to provide a quick connector that is easy to push in and connect, self-locking and unlocking. By pushing the unlocking piece close to the female connector, when the locking block is completely lifted up and the lock between the locking block and the male head is released, continuing to apply force in the same direction as the unlocking piece can separate the male head from the female head. The entire unlocking process is more continuous and simple, making the unlocking process more convenient and smooth.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A quick connector that is easy to push into connection, self-locking and unlocking, comprises a male head and a female head, the male head is provided with a shaft ring, and the side of the shaft ring away from the female head is a locking surface; the female head comprises a main body and a locking block; the main body comprises a locking part and a sealing part; the locking part is provided with a guide groove that fits the locking block, and the guide groove is provided with anti-slip teeth on the side close to the sealing part to prevent the locking block from escaping from the guide groove; the sealing part has a cavity for the male head to be inserted; the bottom of the locking block is provided with a locking notch for engaging the shaft ring; the side of the locking block is provided with an adjustment groove, and the bottom of the side of the adjustment groove away from the notch is provided with an elastic baffle, and the elastic baffle starts to tilt outward from the side of the adjustment groove close to the locking notch; the locking block is provided with an offset notch between the locking notch and the adjustment groove; the bottom of the locking block is provided with a guide arc surface on the side away from the locking notch;

[0008] An unlocking member is installed on the side of the female head close to the male head. The unlocking member includes a push plate, a ring-shaped unlocking plate fixed to the push plate close to the female head, the unlocking plate extends into the locking part, and the inner diameter of the unlocking plate is not less than the outer diameter of the shaft ring.

[0009] Preferably, an anti-slip groove is provided in the locking portion, an elastic connecting plate is fixedly connected to the side of the push plate close to the female head, and an anti-slip clamping plate is provided on the side of the connecting plate away from the push plate, and the anti-slip clamping plate is located in the anti-slip groove.

[0010] Preferably, the anti-dropping clamping plate is provided with a guiding inclined surface on the side away from the push plate.

[0011] Preferably, the bottom of the locking block is an arc surface, and the radius of the arc surface is smaller than the outer diameter of the collar and not smaller than the outer wall radius of the male head.

[0012] Preferably, there are two guide grooves, and the two guide grooves are symmetrically arranged with respect to the main body.

[0013] Preferably, an annular groove is formed on the outer wall of the male head, and a sealing ring is installed in the annular groove.

[0014] Preferably, the corner of one end of the male head close to the female head is a first transition chamfer.

[0015] Preferably, a side corner of the cavity close to the locking portion is a second transition chamfer.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] When unlocking the male and female heads, the specific process is as follows: the staff only needs to put one hand on the push plate and then push the push plate. When the push plate is pushed toward the locking block, the push plate will first contact the guide arc surface, and as the unlocking plate continues to go deeper into the locking part, the locking block will continue to push up with the cooperation of the guide arc surface and the unlocking plate until the lock between the locking block and the male head is released. At this time, the push plate and the female head are in contact. As the push plate continues to be pushed, the female and male heads will be separated, thereby realizing the disassembly between the male and female heads. During the entire unlocking process, the force direction of the push plate is the same as the direction of pushing the female and male heads to separate. The release of the lock between the male head and the locking block and the force division process between the male and female heads are carried out continuously, without the need for step-by-step operations. The entire unlocking process is more convenient and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a first cross-sectional schematic diagram of the overall structure of the utility model after explosion;

[0020] Figure 3 It is a second cross-sectional schematic diagram of the overall structure of the utility model after explosion;

[0021] Figure 4 It is a schematic diagram of the first half section of the overall structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the second half section of the overall structure of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the unlocking member of the utility model.

[0024] Figure 7 It is a schematic diagram of the structure of the locking block of the utility model;

[0025] Figure 8 It is a schematic diagram of the structure of the locking block of the utility model.

[0026] In the figure: 1, male head; 11, ring groove; 12, first transition chamfer; 13, shaft ring; 131, locking surface; 2, female head; 21, main body; 211, locking part; 2111, guide groove; 2112, anti-slip teeth; 2113, anti-slip slide groove; 212, sealing part; 2121, cavity; 22, locking block; 221, locking notch; 222, adjustment groove; 223, elastic baffle; 224, misaligned notch; 225, guide arc surface; 3, unlocking member; 31, push plate; 32, unlocking plate; 41, connecting plate; 42, anti-slip clamping plate; 421, guide inclined surface; 5, sealing ring; 6, second transition chamfer. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Please refer to Figure 1 - Figure 8 The present embodiment provides a quick connector that is easy to push into, connect, self-lock and unlock, including a male head 1 and a female head 2 that is snap-connected with the male head 1. The male head 1 is a hollow tube, and a collar 13 is provided on the outer periphery of the male head 1. The side of the collar 13 away from the female head 2 is a locking surface 131; the female head 2 includes a main body 21 and a locking block 22, and the main body 21 includes a locking portion 211 and a sealing portion 212; a guide groove 2111 that fits the locking block 22 is provided in the locking portion 211, and an anti-slip tooth 2112 that prevents the locking block 22 from escaping from the guide groove 2111 is provided on the side of the guide groove 2111 close to the sealing portion 212, and the sealing portion 212 has a cavity 2121 for inserting the male head 1;

[0029] A locking notch 221 for engaging the shaft ring 13 is provided at the bottom of the locking block 22; an adjusting groove 222 is provided on the side of the locking block 22, and an elastic blocking piece 223 is provided at the bottom of the side of the adjusting groove 222 away from the notch, and the elastic blocking piece 223 starts to tilt outward from the side of the adjusting groove 222 close to the locking notch 221; an offset notch 224 is provided in the locking block 22 between the locking notch 221 and the adjusting groove 222, and the offset notch 224 is used to prevent the locking block 22 from being obstructed by the anti-slip teeth 2112 when the locking block 22 is inserted into the sliding groove.

[0030] Furthermore, a guide arc surface 225 is provided on the side of the bottom of the locking block 22 away from the locking notch 221. The guide arc surface 225 is mainly used to facilitate the shaft ring 13 to smoothly lift the locking block 22 when the male head 1 is inserted, so that the male head 1 can enter the female head 2 along the guide arc surface 225 and be inserted into the cavity 2121; in addition, the guide arc surface 225 can also facilitate the unlocking plate 32 to smoothly lift the locking block 22 when unlocking, thereby improving the installation convenience between the male head 1 and the female head 2 and the smoothness of the unlocking process.

[0031] An unlocking member 3 is installed on the side of the female head 2 close to the male head 1, and the unlocking member 3 includes a push plate 31 and a ring-shaped unlocking plate 32 fixed to the push plate 31 close to the female head 2. The unlocking plate 32 extends into the locking portion 211, and the inner diameter of the unlocking plate 32 is not less than the outer diameter of the shaft ring 13.

[0032] The following is a further introduction in combination with specific usage scenarios. When assembling the female head 2, the locking block 22 is aligned with the guide groove 2111 as a whole, and the misaligned notch 224 of the locking block 22 is aligned with the anti-slipping tooth 2112, and then the locking block 22 is inserted into the guide groove 2111; when the locking block 22 is inserted into the guide groove 2111, the elastic blocking piece 223 will abut against the anti-slipping tooth 2112 and connect. As the locking block 22 is continuously inserted, the elastic blocking piece 223 will gradually bend and eventually completely pass over the anti-slipping tooth 2112. At this time, the outermost end of the elastic blocking piece 223 is located below the anti-slipping tooth 2112. Since the locking block 22 only has a misaligned notch 224 between the locking notch 221 at the bottom and the adjustment groove 222, when the elastic blocking piece 223 passes over the anti-slipping tooth 2112, the locking block 22 cannot continue to be inserted under the constraint of the anti-slipping tooth 2112. In this way, the installation of the female connector 2 is completed. The overall structure of the female connector 2 is simple and easy to assemble.

[0033] When the male head 1 and the female head 2 are connected, the specific process is as follows: align the male head 1 with the cavity 2121 of the female head 2 and insert it; when the collar 13 contacts the guide arc surface 225, as the male head 1 continues to be inserted, the locking block 22 will be slowly lifted up under the cooperation of the guide arc surface 225 and the collar 13, and at this time, the elastic blocking piece 223 abuts against the bottom surface of the anti-slip teeth 2112. When the locking block 22 is continuously lifted, the elastic deformation of the elastic blocking piece 223 gradually increases; when the male head 1 continues to be inserted until the locking block The moment 22 passes over the collar 13, the elastic force of the elastic baffle 223 will cause the locking block 22 to move down rapidly. The locking block 22 will make a "click" sound when it is fastened. At this time, the collar 13 is engaged with the locking notch 221 of the locking block 22. The cooperation between the locking notch 221 and the locking surface 131 makes it impossible for the male head 1 and the female head 2 to be separated. The male head 1 will be firmly stuck by the locking block 22 and cannot be pulled out at will. In this way, the connection between the male head 1 and the female head 2 is completed, and the operation is relatively convenient.

[0034] Furthermore, in the embodiment of the present application, when unlocking the male head 1 and the female head 2, the specific process is as follows: the staff only needs to put one hand on the push plate 31, and then push the push plate 31. When the push plate 31 is pushed toward the locking block 22, the push plate 31 will first contact the guide arc surface 225, and as the unlocking plate 32 continues to go deeper into the locking portion 211, the locking block 22 will continue to push upward with the cooperation of the guide arc surface 225 and the unlocking plate 32 until the lock between the locking block 22 and the male head 1 is released. At this time, the push plate 31 abuts against the female head 2, and as the push plate 31 continues to be pushed, the female head 2 and the male head 1 are separated, thereby realizing the disassembly between the male head 1 and the female head 2. In the entire unlocking process, the force direction of the push plate 31 and the direction of pushing the female head 2 and the male head 1 to separate are the same direction, and the release of the lock between the male head 1 and the locking block 22 and the separation process between the male head 1 and the female head 2 are performed continuously, without the need for step-by-step operation, and the entire unlocking process is more convenient and smooth.

[0035] Reference Figure 1 - Figure 6 As a specific implementation of the embodiment of the present application, an anti-slip groove 2113 is opened in the locking portion 211, an elastic connecting plate 41 is fixedly connected to the side of the push plate 31 close to the female head 2, and an anti-slip card plate 42 is provided on the side of the connecting plate 41 away from the push plate 31, and the anti-slip card plate 42 is located in the anti-slip groove 2113.

[0036] In combination with specific usage scenarios, the cooperation of the anti-slip groove 2113, the connecting plate 41 and the anti-slip clamping plate 42 can prevent the unlocking member 3 from being detached from the female head 2.

[0037] Reference Figure 2 and Figure 6 As a specific implementation of the embodiment of the present application, a guide slope 421 is provided on the side of the anti-dropping clamping plate 42 away from the push plate 31.

[0038] In combination with specific usage scenarios, the guide slope 421 on the anti-slip plate 42 is to facilitate the installation between the unlocking member 3 and the female head 2, so that the anti-slip plate 42 can smoothly pass over the female head 2 and enter the anti-slip groove 2113.

[0039] Reference Figure 4 and Figure 8 As a specific implementation of the embodiment of the present application, the bottom of the locking block 22 is an arc surface, and the radius of the arc surface is smaller than the outer diameter of the collar 13 and not smaller than the outer wall radius of the male head 1.

[0040] In combination with specific usage scenarios, the bottom of the locking block 22 is set to a circular arc surface, and the radius of the circular arc surface is smaller than the outer diameter of the shaft ring 13 and not smaller than the outer wall radius of the male head 1. In this way, when the male head 1 and the female head 2 are engaged and connected, the contact area between the bottom surface of the locking block 22 and the shaft ring of the male head 1 can be increased, and the contact area between the locking surface 131 and the locking notch 221 of the locking block 22 is also increased, thereby further improving the connection stability between the male head 1 and the female head 2.

[0041] Reference Figure 1 and Figure 3 As a specific implementation of the embodiment of the present application, there are two guide grooves 2111, and the two guide grooves 2111 are symmetrically arranged about the main body 21.

[0042] In combination with specific usage scenarios, by adopting two guide grooves 2111 and symmetrically arranging the two guide grooves 2111 about the main body 21, not only can the abutment surface area between the locking surface 131 and the locking notch 221 of the locking block 22 be increased, but also the locking position distribution of the male head 1 is balanced, thereby further improving the stability of the connection between the male head 1 and the female head 2.

[0043] Reference Figure 2As a specific implementation of the embodiment of the present application, the corner of one end of the male head 1 close to the female head 2 is a first transition chamfer 12.

[0044] In combination with specific usage scenarios, by adopting a first transition chamfer 12 at the end of the male head 1 close to the female head, not only can the sharp edges be reduced and removed, making the pipe installation process safer, but the first transition chamfer 12 can also provide guidance, facilitating the alignment and guidance between the male head 1 and the cavity 2121 of the female head 2, thereby improving the assembly convenience between the male head 1 and the female head 2.

[0045] Reference Figure 2 and Figure 4 As a specific implementation of the embodiment of the present application, an annular groove 11 is opened on the outer wall of the male head 1, and a sealing ring 5 is installed in the annular groove 11.

[0046] In combination with specific usage scenarios, the sealing between the male connector 1 and the female connector 2 is further improved by installing the sealing ring 5, thereby improving the water sealing effect of the quick connector.

[0047] Reference Figure 2 or Figure 3 A side corner of the cavity 2121 close to the locking portion 211 is a second transition chamfer 6 .

[0048] In combination with a specific usage scenario, the second transition chamfer 6 can facilitate the sealing ring 5 to smoothly enter the cavity.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A quick connector that is easy to push into, connect, self-lock and unlock, comprising a male connector (1) and a female connector (2), characterized in that: The male head (1) has a collar (13), and the side of the collar (13) away from the female head (2) is a locking surface (131); The female head (2) comprises a main body (21) and a locking block (22); The main body (21) comprises a locking portion (211) and a sealing portion (212); the locking portion (211) is provided with a guide groove (2111) for fitting with the locking block (22); the guide groove (2111) has an anti-slip tooth (2112) on one side close to the sealing portion (212) for preventing the locking block (22) from escaping from the guide groove (2111); the sealing portion (212) has a cavity (2121) for inserting the male head (1); The bottom of the locking block (22) is provided with a locking notch (221) for engaging the shaft ring (13); the side of the locking block (22) is provided with an adjustment groove (222); the bottom of the adjustment groove (222) on a side away from the notch is provided with an elastic blocking piece (223); the elastic blocking piece (223) is inclined outward from a side of the adjustment groove (222) close to the locking notch (221); the locking block (22) is provided with an offset notch (224) between the locking notch (221) and the adjustment groove (222); the bottom of the locking block (22) is provided with a guide arc surface (225) on a side away from the locking notch (221); An unlocking member (3) is installed on the side of the female head (2) close to the male head (1), and the unlocking member (3) comprises a push plate (31) and an annular unlocking plate (32) fixed to the push plate (31) close to the side of the female head (2), the unlocking plate (32) extending into the locking portion (211), and the inner diameter of the unlocking plate (32) is not less than the outer diameter of the shaft ring (13).

2. A quick connector that is easy to push into and self-lock and unlock according to claim 1, characterized in that: An anti-slip groove (2113) is provided in the locking portion (211); a side of the push plate (31) close to the female head (2) is fixedly connected to an elastic connecting plate (41); a side of the connecting plate (41) away from the push plate (31) has an anti-slip clamping plate (42); and the anti-slip clamping plate (42) is located in the anti-slip groove (2113).

3. A quick connector that is easy to push into and self-lock and unlock according to claim 2, characterized in that: A guide inclined surface (421) is provided on the side of the anti-dropping clamping plate (42) away from the push plate (31).

4. A quick connector that is easy to push into and self-lock and unlock according to claim 1, characterized in that: The bottom of the locking block (22) is an arc surface, and the radius of the arc surface is smaller than the outer diameter of the shaft ring (13) and not smaller than the outer wall radius of the male head (1).

5. A quick connector that is easy to push into and connect to self-lock and unlock according to claim 1, characterized in that: There are two guide grooves (2111), and the two guide grooves (2111) are symmetrically arranged with respect to the main body (21).

6. A quick connector that is easy to push into and connect to self-lock and unlock according to claim 1, characterized in that: An annular groove (11) is formed on the outer wall of the male head (1), and a sealing ring (5) is installed in the annular groove (11).

7. A quick connector that is easy to push into and connect to self-lock and unlock according to claim 1, characterized in that: An edge corner of one end of the male head (1) close to the female head (2) is a first transition chamfer (12).

8. A quick connector that is easy to push into and self-lock and unlock according to claim 1, characterized in that: A side corner of the cavity (2121) close to the locking portion (211) is a second transition chamfer (6).

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