Quick connector

Abstract

The invention discloses a quick connector which comprises a wiring core (1). The two sides of the wiring core (1) are detachably connected with locking assemblies used for locking an electric wire or a cable. The locking assembly comprises a shell (3), a clamping claw and a pressing piece (4), one end of the pressing piece (4) is arranged between the other end of the shell (3) and the clamping claw in a sliding fit mode, the other end of the pressing piece (4) is exposed out of the other end of the shell (3), and a return elastic piece is arranged between the pressing piece (4) and the shell (3); a limiting assembly is arranged between the pressing piece (4) and the shell (3), when the pressing piece (4) is stressed to slide and the limiting assembly limits the pressing piece (4) at a first limiting point, the pressing piece (4) tightens the clamping claw, and at the moment, the clamping claw is in a locking state; when the pressing piece (4) is stressed to slide and the limiting assembly limits the pressing piece (4) at the second limiting point, the pressing piece (4) releases the clamping claw, and at the moment, the unlocking state is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electric wire or cable connection, and more specifically to a quick connector. Background Art

[0002] The quick connector is used to connect wires or cables. It is widely used in the fields of aviation, lighthouses, cruise ships, cables, LED lighting, etc. because it is convenient to connect wires or cables, has a safe and reliable structure, and has a good waterproof effect. The quick connector includes a wiring core, and both sides of the wiring core are detachably connected with a locking assembly, and the locking assembly is used to lock the wires or cables. The locking assembly includes a shell, one end of the shell is threadedly connected to the end of the wiring core, and the other end of the shell is provided with a clamping claw, and the other end of the shell is threadedly connected with a locking nut, and the locking nut is sleeved outside the clamping claw for tightening or loosening the clamping claw to clamp or release the wires or cables. When assembling this kind of quick connector, first unscrew the locking nuts on both sides and pass the wires or cables through them; then connect the wires or cables on both sides to the wiring terminals at both ends of the wiring core; then screw the one end of the shell on both sides on the two ends of the wiring core one by one; finally, tighten the locking nut so that the clamping claw clamps the wires or cables, and the wiring is very convenient.

[0003] The quick connector of the prior art has the following defects: since the other end of the shell is threadedly connected with a locking nut, tightening the locking nut can tighten the clamping claws, thereby clamping the wire or cable; unscrewing the locking nut can loosen the clamping claws, thereby releasing the wire or cable, and when unscrewing the locking nut, it is easy to lose the locking nut at the assembly site, causing unnecessary trouble to the assembly process. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a quick connector, which clamps or releases wires or cables by pressing, and will not disturb parts during the assembly process, making the assembly process more worry-free.

[0005] The technical solution of the present invention is to provide a quick connector with the following structure: the wiring core, both sides of the wiring core are detachably connected with a locking assembly for locking wires or cables, and both ends of the wiring core are provided with wiring terminals; the locking assembly includes a shell, a clamping claw and a pressing piece, one end of the shell is detachably connected to the end of the wiring core, the clamping claw is arranged in the shell, one end of the pressing piece is slidably fitted between the other end of the shell and the clamping claw, and the other end of the pressing piece is exposed in the shell Outside the other end of the pressing piece, a return elastic piece is provided between the pressing piece and the shell; a limiting assembly is provided between the pressing piece and the shell, and the limiting assembly is provided with a first limiting point and a second limiting point; when the pressing piece is forced to slide and the limiting assembly limits the pressing piece to the first limiting point, the pressing piece tightens the clamping claw, and it is in a locked state; when the pressing piece is forced to slide and the limiting assembly limits the pressing piece to the second limiting point, the pressing piece releases the clamping claw, and it is in an unlocked state.

[0006] After adopting the above structure, the quick connector of the present invention has the following advantages compared with the prior art: Since the locking assembly of the quick connector of the present invention includes a housing, a clamping claw and a pressing piece, a limiting assembly is provided between the pressing piece and the housing. When the pressing piece is forced to slide and the limiting assembly limits the pressing piece at the first limiting position, the pressing piece tightens the clamping claw, which is a locked state; when the pressing piece is forced to slide and the limiting assembly limits the pressing piece at the second limiting position, the pressing piece releases the clamping claw, which is an unlocked state. In this way, the clamping claw can be clamped or loosened by pressing the pressing piece, which is very convenient to use, and there is no need to worry about parts being lost, and the assembly process is very worry-free.

[0007] As an improvement, the clamping claw includes a support sleeve and a clamping claw sleeve, the clamping claw sleeve is sleeved outside the support sleeve, and one end of the clamping claw sleeve protrudes from one end of the support sleeve; the one end of the pressing member is sleeved outside the one end of the clamping claw sleeve, and a conical pressing surface is provided inside the one end of the pressing member; when the pressing member slides, the conical pressing surface can tighten or release the one end of the clamping claw sleeve. After adopting this structure, the pressing member tightens or releases the one end of the clamping claw sleeve through the conical pressing surface, which has a simple structure, is easy to assemble, and has a good use effect.

[0008] As an improvement, the support body is a conical structure, and the end of the support body is a straight cylindrical structure; the clamping claw sleeve is also a conical structure, and one end of the clamping claw sleeve is a straight cylindrical structure. After adopting this structure, the structure is simple and the use effect is better.

[0009] As an improvement, a first limit stop ring is provided on the inner wall of the housing, and the other end of the support sleeve and the other end of the clamping claw sleeve both abut against the first limit stop ring. With this structure, the support sleeve and the clamping claw sleeve have a simple assembly structure and are easy to assemble.

[0010] As an improvement, the limiting assembly includes a limiting sleeve; the limiting sleeve is rotatably installed between the one end of the pressing member and the other end of the shell; a positioning pin is provided on the outer wall of the pressing member, a sliding track is provided on the inner wall of the limiting sleeve, and the positioning pin is slidably fitted in the sliding track; the sliding track is provided with the first limiting point and the second limiting point; when the positioning pin is limited at the first limiting point, it is in a locked state, and when the positioning pin is limited at the second limiting point, it is in an unlocked state. After adopting this structure, the limiting of the pressing member is achieved through the positioning pin and the sliding track structure, and the structure is simple and the limiting effect is good.

[0011] As an improvement, the sliding track includes a first recess and a second recess, one side of the first recess is connected to one side of the second recess by a first slideway, the other side of the first recess is connected to the other side of the second recess by a second slideway, and the first slideway and the second slideway are symmetrical to each other; a first embedding point is provided on the side wall of the first recess, and the first embedding point is the first limiting point, and a second embedding point is provided on the side wall of the second recess, and the second embedding point is the second limiting point. With this structure, the positioning pin can achieve position limiting by entering the first embedding point or the second embedding point, which has a simple structure, simple and flexible operation.

[0012] As an improvement, the sliding track is a pentagonal ring structure. After adopting this structure, this design has a simple structure and is easy to manufacture.

[0013] As an improvement, the limiting sleeve comprises a first half ring and a second half ring, and the first half ring and the second half ring are spliced ​​to form the limiting sleeve. With this structure, the limiting sleeve is spliced ​​by the first half ring and the second half ring, and is flexible and can extend its service life.

[0014] As an improvement, a second limit ring is provided on the inner wall of the housing, the second limit ring is sleeved outside the one end of the pressing member, and one end of the limit sleeve abuts against the second limit ring. With this structure, the second limit ring supports the limit sleeve.

[0015] As an improvement, a sealing ring is provided on the second limit stop ring, one end of the limit sleeve is against the sealing ring, and the inner side of the sealing ring is attached to the outer side wall of the one end of the pressing member. With this structure, the sealing ring can improve the sealing effect and the waterproof effect.

[0016] As an improvement, the sealing ring is provided with a retaining ring, which is sleeved outside the end of the limiting sleeve; the end of the limiting sleeve and the retaining ring are matched through an inclined surface. After adopting this structure, the retaining ring is used to block the limiting sleeve, and the activity space of the limiting sleeve can be adjusted by setting the thickness of the retaining ring.

[0017] As an improvement, the return elastic member is a return spring, which is sleeved outside the one end of the pressing member; a limiting step is provided on the side wall of the one end of the pressing member, one end of the return spring abuts against the limiting step, and the other end of the return spring abuts against the sealing ring. This structure is simple and easy to assemble.

[0018] As an improvement, an embedding groove is provided on the end surface of the sealing ring and located on the inner side of the limiting sleeve, and the other end of the return spring is embedded in the embedding groove. With this structure, the assembly of the return spring is more reliable.

[0019] As an improvement, the wiring terminal includes a fixing seat, which is fixedly connected to the end surface of the wiring core; the fixing seat is provided with a channel for the end of the power line or cable to pass through, and the side wall of the channel is provided with a threaded hole, and the threaded hole is threadedly connected with a locking screw for locking the wire or cable. After adopting this structure, the fixing effect of the wire or cable is better.

[0020] As an improvement, the passage is a "J" shaped structure. With this structure, the design is more reasonable and the end of the wire or cable can be inserted more smoothly.

[0021] As an improvement, a screw seat is further provided on the end surface of the wiring core, a connecting hole is provided on the screw, a polished rod section is provided on the screw rod of the locking screw, the polished rod section is located between the nut and the threaded section, and the polished rod section is slidably fitted in the connecting hole; the nut and the threaded section are limited on both sides of the screw seat. With this structure, the locking screw can be prevented from falling off, avoiding unnecessary trouble. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional schematic diagram of the quick connector of the present invention.

[0023] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0024] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B.

[0025] Figure 4 A schematic diagram of the exploded structure of the quick connector of the present invention.

[0026] Figure 5 It is a partial three-dimensional structural schematic diagram of the quick connector of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the housing of the quick connector of the present invention.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the first half ring of the quick connector of the present invention.

[0029] As shown in the figure: 1. Wiring core, 2. Wiring terminal, 201. Fixing seat, 202. Channel, 203. Screw seat, 204. Screw seat, 205. Connecting hole, 3. Shell, 301. First limit retaining ring, 302. Second limit retaining ring, 303. First convex ring, 4. Pressing piece, 401. Conical pressing surface, 402. Positioning pin, 403. Pin hole, 404. Limiting step, 5. Support sleeve, 6. Clamping claw sleeve, 7. Return spring, 8. Limiting sleeve, 801. First half ring, 802. Second half ring, 803. First recess, 804. Second recess, 805. First slideway, 806. Second slideway, 807. First embedding point, 808. Second embedding point, 9. Sealing ring, 901. First annular groove, 902. Second annular groove, 903. Embedding groove, 10. Retaining ring, 1001. Second convex ring, 11. Locking screw, 1101. Polished rod section, 1102. Nut, 1103. Threaded section. DETAILED DESCRIPTION

[0030] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0031] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0032] It should also be understood that the terms “comprises,” “including,” “has,” “includes,” and “containing,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0033] like Figures 1 to 7 As shown, the present application discloses a quick connector, including a wiring core 1. Both sides of the wiring core 1 are detachably connected with locking assemblies, and the locking assemblies are used to lock wires or cables. Both ends of the wiring core 1 are provided with wiring terminals 2, and the wiring terminals 2 are used to connect the ends of wires or cables. When the quick connector is used, the ends of two wires or cables pass through the locking assemblies on both sides respectively, and then the ends of the two wires or cables are respectively connected to the wiring terminals 2 at both ends, so that the two wires or two cables are connected.

[0034] The locking assembly includes a housing 3, a clamping claw and a pressing member 4. One end of the housing 3 is detachably connected to the end of the wiring core 1. In this specific embodiment, one end of the housing 3 is threadedly connected to the end of the wiring core 1. The clamping claw is installed in the housing 3. The clamping claw includes a support sleeve 5 and a clamping claw sleeve 6. The clamping claw sleeve 6 is sleeved outside the support sleeve 5, and one end of the clamping claw sleeve 6 protrudes from one end of the support sleeve 5. The support body is a conical structure, and the end of the support body is a straight cylindrical structure. The clamping claw sleeve 6 is also a conical structure, and one end of the clamping claw sleeve 6 is a straight cylindrical structure. A first limit ring 301 is provided on the inner wall of the housing 3. The other end of the support sleeve 5 and the other end of the clamping claw sleeve 6 are both against the first limit ring 301. The first limit ring 301 has a limiting effect on the support sleeve 5 and the clamping claw sleeve 6.

[0035] One end of the pressing member 4 is slidably fitted in the other end of the housing 3, and the one end of the pressing member 4 is sleeved outside one end of the clamping claw sleeve 6. A conical pressing surface 401 is provided inside the one end of the pressing member 4, and when the pressing member 4 slides, the conical pressing surface 401 can tighten or release the one end of the clamping claw sleeve 6. The other end of the pressing member 4 is exposed outside the other end of the housing 3, and a return elastic member is provided between the pressing member 4 and the housing 3, and the return elastic member is a return spring 7.

[0036] A limiting assembly is provided between the pressing piece 4 and the shell 3, and the limiting assembly is provided with a first limiting point and a second limiting point; when the pressing piece 4 is forced to slide and the limiting assembly limits the pressing piece 4 at the first limiting point, the pressing piece 4 tightens the clamping claw, and is in a locked state; when the pressing piece 4 is forced to slide and the limiting assembly limits the pressing piece 4 at the second limiting point, the pressing piece 4 releases the clamping claw, and is in an unlocked state.

[0037] The limiting assembly includes a limiting sleeve 8, and the limiting sleeve 8 is rotatably mounted between the one end of the pressing member 4 and the other end of the housing 3. The limiting sleeve 8 includes a first half ring 801 and a second half ring 802, and the first half ring 801 and the second half ring 802 are spliced ​​to form the limiting sleeve 8. A positioning pin 402 is provided on the outer wall of the pressing member 4, that is, a pin hole 403 is provided on the side wall of the pressing member 4, one end of the positioning pin 402 is tightly fitted in the pin hole 403, and the other end of the positioning pin 402 is exposed outside the pin hole 403. A sliding track is provided on the inner wall of the first half ring 801, and the other end of the positioning pin 402 is slidably fitted in the sliding track.

[0038] The sliding track includes a first recess 803 and a second recess 804. One side of the first recess 803 and one side of the second recess 804 are connected by a first slide 805. The other side of the first recess 803 and the other side of the second recess 804 are connected by a second slide 806. The first slide 805 and the second slide 806 are symmetrical to each other. A first embedding point 807 is provided on the side wall of the first recess 803, and the first embedding point 807 is the first limiting point. A second embedding point 808 is provided on the side wall of the second recess 804, and the second embedding point 808 is the second limiting point. When the positioning pin 402 is limited at the first limiting point, it is in a locked state. When the positioning pin 402 is limited at the second limiting point, it is in an unlocked state. In this specific embodiment, the sliding track is a regular pentagonal ring structure.

[0039] A second limit retaining ring 302 is provided on the inner wall of the housing 3. The second limit retaining ring 302 is sleeved on the one end of the pressing member 4. One end of the first half ring 801 and one end of the second half ring 802 both abut against the second limit retaining ring 302. A sealing ring 9 is provided on the second limit retaining ring 302. The inner side of the sealing ring 9 is abutted against the outer wall of the one end of the pressing member 4. A first convex ring 303 is provided on the second limit retaining ring 302. A first annular groove 901 is provided on the end surface of one end of the sealing ring 9. The first convex ring 303 is embedded in the first annular groove 901. A retaining ring 10 is provided on the sealing ring 9. That is, a second annular groove 902 is provided on the end surface of the other end of the sealing ring 9. A second convex ring 1001 is provided on the retaining ring 10. The second convex ring 1001 is embedded in the second annular groove 902. The retaining ring 10 is sleeved outside the ends of the first half ring 801 and the second half ring 802 , and the ends of the limiting sleeve 8 are matched with the retaining ring 10 through an inclined surface.

[0040] The return spring 7 is sleeved on the one end of the pressing member 4; a limiting step 404 is provided on the side wall of the one end of the pressing member 4, and one end of the return spring 7 abuts against the limiting step 404. An embedding groove 903 is provided on the end surface of the sealing ring 9 and located on the inner side of the limiting sleeve 8, and the other end of the return spring 7 is embedded in the embedding groove 903.

[0041] The wiring terminal 2 includes a fixing seat 201, and the fixing seat 201 is fixedly connected to the end face of the wiring core 1. The fixing seat 201 is provided with a channel 202 for the end of the power line or cable to pass through, and the channel 202 is a "J"-shaped structure. The side wall of the channel 202 is provided with a threaded hole 203, and the threaded hole 203 is threadedly connected with a locking screw 11 for locking the wire or cable. A screw seat 204 is also provided on the end face of the wiring core 1, and a connecting hole 205 is provided on the screw. A bare rod section 1101 is provided on the screw rod of the locking screw 11, and the bare rod section 1101 is located between the nut 1102 and the threaded section 1103, and the bare rod section 1101 is slidably fitted in the connecting hole 205; the nut 1102 and the threaded section 1103 are limited on both sides of the screw seat 204.

[0042] When the quick connector disclosed in the present invention is used, the pressing pieces 4 of the locking assemblies on both sides are first pressed. The pressing pieces 4 are bounced up by the return spring 7, so that the positioning pin 402 is positioned at the second limit point, and it is in the unlocked state at this time. Then, the ends of the two wires or cables are passed through the locking assemblies, and the ends of the two wires or cables are respectively connected to the wiring terminals 2 at both ends of the wiring core 1. Then, the one end of the housing 3 on both sides is screwed on the two ends of the wiring core 1. Finally, the pressing pieces 4 of the locking assemblies on both sides are pressed again, and the pressing pieces 4 compress the return spring 7 to position the positioning pin 402 at the first limit point, and it is in the locked state at this time, so that the connection of the wires or cables is completed.

[0043] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A quick connector, wherein the wiring core (1) has locking components for locking wires or cables detachably connected to both sides of the wiring core (1), and both ends of the wiring core (1) are provided with wiring terminals (2); characterized in that: The locking assembly comprises a housing (3), a clamping claw and a pressing piece (4); one end of the housing (3) is detachably connected to the end of the wiring core (1); the clamping claw is arranged in the housing (3); one end of the pressing piece (4) is slidably fitted between the other end of the housing (3) and the clamping claw; the other end of the pressing piece (4) is exposed outside the other end of the housing (3); a return elastic piece is arranged between the pressing piece (4) and the housing (3); the pressing piece (4) ) and the shell (3), and the limiting assembly is provided with a first limiting point and a second limiting point; when the pressing piece (4) is forced to slide and the limiting assembly limits the pressing piece (4) at the first limiting point, the pressing piece (4) tightens the clamping claw, and the pressing piece (4) is in a locked state; when the pressing piece (4) is forced to slide and the limiting assembly limits the pressing piece (4) at the second limiting point, the pressing piece (4) releases the clamping claw, and the pressing piece (4) is in an unlocked state.

2. The quick connector according to claim 1, characterized in that: The clamping claw comprises a supporting sleeve (5) and a clamping claw sleeve (6); the clamping claw sleeve (6) is sleeved outside the supporting sleeve (5), and one end of the clamping claw sleeve (6) protrudes from one end of the supporting sleeve (5); the one end of the pressing piece (4) is sleeved outside one end of the clamping claw sleeve (6), and a conical pressing surface (401) is provided inside the one end of the pressing piece (4); when the pressing piece (4) slides, the conical pressing surface (401) can tighten or release the one end of the clamping claw sleeve (6).

3. The quick connector according to claim 2, characterized in that: The support body is a conical structure, and the end of the support body is a straight cylindrical structure; the clamping claw sleeve (6) is also a conical structure, and one end of the clamping claw sleeve (6) is a straight cylindrical structure.

4. The quick connector according to claim 2, characterized in that: A first limit retaining ring (10) is provided on the inner wall of the housing (3), and the other end of the support sleeve (5) and the other end of the clamping claw sleeve (6) both abut against the first limit retaining ring (301).

5. The quick connector according to claim 1, characterized in that: The limiting assembly comprises a limiting sleeve (8); the limiting sleeve (8) is rotatably mounted between the one end of the pressing member (4) and the other end of the shell (3); a positioning pin (402) is provided on the outer wall of the pressing member (4), a sliding track is provided on the inner wall of the limiting sleeve (8), and the positioning pin (402) is slidably fitted in the sliding track; the sliding track is provided with the first limiting point and the second limiting point; when the positioning pin (402) is limited at the first limiting point, it is in a locked state, and when the positioning pin (402) is limited at the second limiting point, it is in an unlocked state.

6. The quick connector according to claim 5, characterized in that: The sliding track comprises a first recess (803) and a second recess (804); one side of the first recess (803) and one side of the second recess (804) are connected via a first slideway (805); the other side of the first recess (803) and the other side of the second recess (804) are connected via a second slideway (806); the first slideway (805) and the second slideway (806) are symmetrical to each other; a first embedding point (807) is provided on the side wall of the first recess (803), and the first embedding point (807) is the first limiting point; a second embedding point (808) is provided on the side wall of the second recess (804), and the second embedding point (808) is the second limiting point.

7. The quick connector according to claim 6, characterized in that: The sliding track is a regular pentagonal ring structure.

8. The quick connector according to claim 5, characterized in that: The limiting sleeve (8) comprises a first half ring (801) and a second half ring (802), and the first half ring (801) and the second half ring (802) are spliced ​​together to form the limiting sleeve (8).

9. The quick connector according to claim 5, characterized in that: A second limit stop ring (302) is provided on the inner wall of the shell (3), the second limit stop ring (302) is sleeved outside the one end of the pressing member (4), and one end of the limit sleeve (8) abuts against the second limit stop ring (302).

10. The quick connector according to claim 9, characterized in that: The second limiting retaining ring (302) is provided with a sealing ring (9), one end of the limiting sleeve (8) abuts against the sealing ring (9), and the inner side of the sealing ring (9) abuts against the outer side wall of the one end of the pressing member (4).

11. The quick connector according to claim 10, characterized in that: The sealing ring (9) is provided with a retaining ring (10), and the retaining ring (10) is sleeved outside the end of the limiting sleeve (8); the end of the limiting sleeve (8) and the retaining ring (10) are matched via an inclined surface.

12. The quick connector according to claim 10, characterized in that: The return elastic member is a return spring (7), and the return spring (7) is sleeved on the outside of the one end of the pressing member (4); a limiting step (404) is provided on the side wall of the one end of the pressing member (4), one end of the return spring (7) abuts against the limiting step (404), and the other end of the return spring (7) abuts against the sealing ring (9).

13. The quick connector according to claim 12, characterized in that: An embedding groove is provided on the end surface of the sealing ring (9) and located on the inner side of the limiting sleeve (8), and the other end of the return spring (7) is embedded in the limiting groove.

14. The quick connector according to claim 1, characterized in that: The wiring terminal (2) comprises a fixing seat (201), wherein the fixing seat (201) is fixedly connected to the end face of the wiring core (1); the fixing seat (201) is provided with a channel (202) for the end of the power line or cable to pass through, and the side wall of the channel (202) is provided with a threaded hole (203), and the threaded hole (203) is threadedly connected with a locking screw (11) for locking the wire or cable.

15. The quick connector according to claim 14, characterized in that: The channel (202) is a "J"-shaped structure.

16. The quick connector according to claim 14, characterized in that: A screw seat (204) is also provided on the end surface of the wiring core (1), and a connecting hole (205) is provided on the screw. A bare rod section (1101) is provided on the screw rod of the locking screw (11), and the bare rod section (1101) is located between the nut (1102) and the threaded section (1103). The bare rod section (1101) is slidably fitted in the connecting hole (205); the nut (1102) and the threaded section (1103) are limited on both sides of the screw seat (204).

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