Quick connector with self-locking function

Abstract

The utility model discloses a quick coupler with self -locking function belongs to the technical field of joint, including lower connecting seat and upper connecting seat, and the inside of joint is equipped with fixed plate, moving plate, elastic column and connecting plate, and connecting plate is used for driving moving plate to overcome elastic column elastic force to realize the quick clamping or release of electric wire between moving plate and fixed plate. The outside of joint is equipped with locking mechanism, including the clamping plate of rotation connection in upper connecting seat, the clamping groove of setting in lower connecting seat and the moving ring of sliding connection in upper connecting seat, and the clamping groove is equipped on moving ring, when clamping plate rotates and clamps into clamping groove, moving ring slides, makes its clamping groove to be equipped in the outer wall of clamping plate, and the rotation of clamping plate is limited. The utility model solves the problem that the joint is easy to be released through the cooperation of locking mechanism, realizes stable self -locking, improves the connection reliability, and the inside electric wire installation operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a quick-connect connector with a self-locking function. Background Technology

[0002] Quick-connect couplings are widely used in electrical connections, automated equipment, or other applications requiring frequent docking and disassembly. They are designed to provide a faster and more convenient installation and disassembly solution than traditional threaded or flanged connections. In practical applications, existing quick-connect couplings typically use simple snap-fit ​​structures or spring clips to secure the two connected components in order to achieve rapid installation. For securing the wires inside the coupling, traditional screw terminal clamping or welding methods are often used.

[0003] However, the above structure has revealed its shortcomings in actual use. The simple snap-fit ​​locking structure is not reliable. Under the vibration and impact environment of the equipment operation, or when it is accidentally pulled, the snap-fit ​​is prone to loosening or even falling off on its own, resulting in connection interruption and safety hazards. On the other hand, the internal wires are fixed with screws, which require tools to tighten them one by one during installation. The operation is cumbersome and inefficient, which also contradicts the concept of quick installation.

[0004] Therefore, this utility model proposes a quick-connect coupling with a self-locking function to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the technology of quick-connect couplings with self-locking function, such as unreliable locking of the joint after docking, easy accidental loosening due to vibration or accidental contact, and cumbersome and inefficient internal wire clamping and fixing operation, this utility model aims to provide a quick-connect coupling with self-locking function with improved structure that can effectively solve the above problems.

[0006] This utility model provides a quick-connect coupling with a self-locking function, including: a lower connecting seat and an upper connecting seat that is detachably fitted to the lower connecting seat;

[0007] The quick-connector also includes a fixing plate, which is fixed inside the upper connecting seat;

[0008] A movable plate, which is slidably disposed within the upper connecting seat and located on one side of the fixed plate;

[0009] An elastic column is disposed between the movable plate and the upper connecting seat, and is used to drive the movable plate to move toward the fixed plate;

[0010] A connecting plate, which is slidably disposed on the upper connecting seat, is used to push the movable plate away from the fixed plate;

[0011] And a locking mechanism, the locking mechanism including a locking plate, a locking slot, and a moving ring;

[0012] The locking plate is rotatably connected to the upper connecting seat via a rotating shaft;

[0013] The slot is provided on the lower connecting seat, and the locking plate is adapted to rotate and engage with the slot;

[0014] The movable ring is slidably connected to the upper connecting seat, and the movable ring is provided with a groove;

[0015] When the locking plate is engaged in the slot, the moving ring slides and the slot is fitted onto the outer wall of the locking plate to restrict the rotation of the locking plate.

[0016] Preferably, the quick-connect coupling further includes an extension plate, one end of which is fixedly connected to the connecting plate and the other end of which is fixedly connected to the movable plate.

[0017] Preferably, the quick-connect coupling further includes a retaining ring, which is fixed to the upper connecting seat, and the movable plate is slidably fitted onto the surface of the retaining ring.

[0018] Preferably, both the lower connector and the upper connector have a connecting hole for the wire to be connected to pass through.

[0019] Preferably, both the lower connecting seat and the upper connecting seat are provided with slots, which provide space for the movement of the connecting plate and make the structure more compact.

[0020] Preferably, the bottom of the upper connecting seat is provided with a positioning post, and the top of the lower connecting seat is provided with a positioning hole. The positioning post and the positioning hole are inserted and engaged for initial positioning during docking.

[0021] Preferably, the locking mechanism further includes a sliding groove and a slider; the sliding groove is formed on the outer wall of the upper connecting seat; the slider is fixedly connected to the moving ring, and the slider is slidably disposed in the sliding groove to facilitate the sliding of the moving ring.

[0022] Preferably, the movable plate has a ring structure, and the elastic columns are evenly arranged along the circumference of the movable plate, so that the movable plate is subjected to more uniform force and the reset is more stable.

[0023] Preferably, the movable ring has an annular structure, and the groove is a recess formed on the inner wall of the movable ring.

[0024] Preferably, the locking plate is an L-shaped plate, and the rotating shaft is connected to the corner of the locking plate.

[0025] This utility model has the following beneficial effects:

[0026] 1. This utility model, by setting a matching structure of a locking plate, a locking groove, a moving ring and a mating groove, when the locking plate rotates and locks into the locking groove, the moving ring slides and uses its mating groove to fit on the outer wall of the locking plate, physically restricting the rotation of the locking plate, solving the problem in the prior art that the joint is easy to accidentally loosen due to vibration or accidental contact after docking, and achieving a stable locking, preventing loosening and improving the reliability of the connection.

[0027] 2. This utility model, by setting a connecting plate, an extension plate, a movable plate, a fixed plate, and an elastic column, allows the movable plate to overcome the elastic force and open the clamp by pressing the connecting plate. After the connecting plate is released, the movable plate automatically resets and clamps the wire under the action of the elastic force. This solves the problems of complicated wire installation and inconvenient fixing in the prior art, and achieves quick installation, firm clamping, and convenient operation.

[0028] 3. This utility model provides space for the pressing action of the air connecting plate by opening slots in the lower connecting seat and the upper connecting seat, making the gap after the upper and lower connecting seats are assembled smaller and achieving a compact structure. Attached Figure Description

[0029] Figure 1 This is a front perspective view of a quick-connect coupling with a self-locking function proposed in this utility model;

[0030] Figure 2 This is a partial structural exploded view of the lower connecting seat of a quick-connect coupling with self-locking function proposed in this utility model;

[0031] Figure 3 This is a partial structural diagram of the movable plate of a quick-connect coupling with self-locking function proposed in this utility model;

[0032] Figure 4 This is a partial structural diagram of the upper connecting seat of a quick-connect coupling with a self-locking function proposed in this utility model;

[0033] Figure 5 This is a partial structural diagram of the movable ring of a quick-connect coupling with a self-locking function proposed in this utility model.

[0034] Legend:

[0035] 1. Lower connecting seat; 2. Locking mechanism; 201. Gutter; 202. Rotating shaft; 203. Locking plate; 204. Positioning post; 205. Sliding groove; 206. Moving ring; 207. Slider; 208. Positioning hole; 209. Slot; 3. Upper connecting seat; 4. Empty groove; 5. Connecting plate; 6. Moving plate; 7. Extension plate; 8. Fixing plate; 9. Elastic post; 10. Fixing ring; 11. Connecting hole. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] Example:

[0038] Please refer to Figures 1 to 5 This utility model embodiment provides a quick-connect coupling with a self-locking function, including a lower connecting seat 1 and an upper connecting seat 3 detachably fitted to the lower connecting seat 1. The quick-connect coupling also includes a fixing plate 8, which is fixed inside the upper connecting seat 3; a movable plate 6, which is slidably disposed inside the upper connecting seat 3 and located on one side of the fixing plate 8; the quick-connect coupling also includes a fixing ring 10, which is fixed to the upper connecting seat 3, and the movable plate 6 is slidably fitted on the surface of the fixing ring 10.

[0039] The elastic column 9 is disposed between the movable plate 6 and the upper connecting seat 3, and is used to drive the movable plate 6 to move toward the fixed plate 8. The movable plate 6 has a ring structure, and the elastic column 9 is evenly distributed along the circumference of the movable plate 6.

[0040] The connecting plate 5 is slidably mounted on the upper connecting seat 3 and is used to push the moving plate 6 away from the fixed plate 8. The quick-connect coupling also includes an extension plate 7, one end of which is fixedly connected to the connecting plate 5 and the other end of which is fixedly connected to the moving plate 6.

[0041] Both the lower connecting seat 1 and the upper connecting seat 3 have a connecting hole 11 for the wire to be connected to pass through; both the lower connecting seat 1 and the upper connecting seat 3 have a slot 4 for the movement of the connecting plate 5.

[0042] To address the issue of easy loosening of the connector lock, the technical solution of this embodiment is that the quick-connect connector with self-locking function also includes a locking mechanism 2, and the locking mechanism 2 forms a specific structural fit and connection relationship with the lower connecting seat 1 and the upper connecting seat 3.

[0043] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The bottom of the upper connecting seat 3 is provided with a positioning post 204, and the top of the lower connecting seat 1 is provided with a positioning hole 208. The positioning post 204 and the positioning hole 208 are inserted and engaged to achieve the initial positioning when the lower connecting seat 1 and the upper connecting seat 3 are docked.

[0044] Locking mechanism 2 includes a locking plate 203, which is L-shaped. The locking plate 203 is rotatably connected to the upper connecting seat 3 via a rotating shaft 202, which is connected to the corner of the locking plate 203.

[0045] The lower connecting seat 1 is provided with a slot 209, and the locking plate 203 is adapted to rotate and be locked into the slot 209. The locking mechanism 2 also includes a moving ring 206, which is a ring structure and is slidably connected to the upper connecting seat 3.

[0046] The movable ring 206 is provided with a groove 201, which is a groove formed on the inner wall of the movable ring 206. When the locking plate 203 is engaged with the groove 209, the movable ring 206 slides and the groove 201 is fitted onto the outer wall of the locking plate 203 to restrict the rotation of the locking plate 203, thereby achieving self-locking. To facilitate the operation of the movable ring 206, the locking mechanism 2 also includes a sliding groove 205 and a slider 207. The sliding groove 205 is formed on the outer wall of the upper connecting seat 3, and the slider 207 is fixedly connected to the movable ring 206 and is slidably disposed in the sliding groove 205.

[0047] Working principle: When connecting wires, first pass the wires to be connected through the connecting holes 11 in the lower connecting seat 1 and the upper connecting seat 3 respectively. Then push the connecting plate 5 outward. The connecting plate 5 drives the moving plate 6 to overcome the elastic force of the elastic column 9 through the extension plate 7 and slides away from the fixed plate 8 along the surface of the fixing ring 10, thereby opening a gap between the moving plate 6 and the fixed plate 8. At this time, the slot 4 provides space for the movement of the connecting plate 5. After tightening the wires to be connected, put them into the gap, and then loosen the connecting plate 5. Under the action of the reset elastic force of the elastic column 9, the moving plate 6 moves towards the fixed plate 8, thereby firmly pressing the wires to be connected between the two, completing the quick installation.

[0048] When it is necessary to lock the lower connecting seat 1 and the upper connecting seat 3, first align the positioning pin 204 at the bottom of the upper connecting seat 3 with the positioning hole 208 at the top of the lower connecting seat 1 and fasten it; then rotate the rotating shaft 202 to make the locking plate 203 rotate and lock into the slot 209 on the lower connecting seat 1 to achieve a preliminary connection; finally, push the slider 207 to make the slider 207 slide along the sliding groove 205. The slider 207 drives the moving ring 206 to move down, and the groove 201 on the moving ring 206 moves accordingly and is fitted onto the outer wall of the locking plate 203. The groove 201 physically restricts the locking plate 203 from rotating in the opposite direction, that is, it cannot be dislodged from the slot 209, thus achieving a stable self-locking and solving the problem of unstable connection.

Claims

1. A quick-connect coupling with a self-locking function, comprising: Lower connecting seat (1); and Upper connecting seat (3), which is detachably fitted to the lower connecting seat (1); Its features are, The quick-connect coupling also includes: A fixing plate (8) is fixed inside the upper connecting seat (3); The movable plate (6) is slidably disposed in the upper connecting seat (3) and located on one side of the fixed plate (8); An elastic column (9) is disposed between the movable plate (6) and the upper connecting seat (3) for driving the movable plate (6) to move toward the fixed plate (8); Connecting plate (5), which is slidably disposed on the upper connecting seat (3), the connecting plate (5) being used to push the moving plate (6) away from the fixed plate (8); and Locking mechanism (2), the locking mechanism (2) includes: A locking plate (203) is rotatably connected to the upper connecting seat (3) via a rotating shaft (202); The slot (209) is provided on the lower connecting seat (1), and the locking plate (203) is adapted to rotate and lock into the slot (209); The movable ring (206) is slidably connected to the upper connecting seat (3); The movable ring (206) is provided with a groove (201). When the locking plate (203) is engaged in the groove (209), the movable ring (206) slides and the groove (201) is fitted onto the outer wall of the locking plate (203) to restrict the rotation of the locking plate (203).

2. A quick-connect coupling with self-locking function according to claim 1, characterized in that, The quick-connector also includes an extension plate (7), one end of which is fixedly connected to the connecting plate (5), and the other end is fixedly connected to the movable plate (6).

3. A quick-connect coupling with self-locking function according to claim 1, characterized in that, The quick-connector also includes a retaining ring (10), which is fixed to the upper connecting seat (3), and the movable plate (6) is slidably fitted on the surface of the retaining ring (10).

4. A quick-connect coupling with self-locking function according to claim 1, characterized in that, Both the lower connector (1) and the upper connector (3) are provided with a connecting hole (11), which is used for the wire to be connected to pass through.

5. A quick-connect coupling with self-locking function according to claim 1, characterized in that, Both the lower connecting seat (1) and the upper connecting seat (3) are provided with slots (4), which provide space for the movement of the connecting plate (5).

6. A quick-connect coupling with self-locking function according to claim 1, characterized in that, The bottom of the upper connecting seat (3) is provided with a positioning post (204), and the top of the lower connecting seat (1) is provided with a positioning hole (208). The positioning post (204) is inserted into the positioning hole (208).

7. A quick-connect coupling with self-locking function according to claim 1, characterized in that, The locking mechanism (2) further includes a sliding groove (205) and a slider (207); The sliding groove (205) is formed on the outer wall of the upper connecting seat (3); The slider (207) is fixedly connected to the moving ring (206), and the slider (207) is slidably disposed in the sliding groove (205).

8. A quick-connect coupling with self-locking function according to claim 1, characterized in that, The movable plate (6) has a ring structure, and the elastic columns (9) are evenly arranged along the circumference of the movable plate (6).

9. A quick-connect coupling with self-locking function according to claim 1, characterized in that, The moving ring (206) is an annular structure, and the groove (201) is a groove formed on the inner wall of the moving ring (206).

10. A quick-connect coupling with self-locking function according to claim 1, characterized in that, The locking plate (203) is an L-shaped plate, and the rotating shaft (202) is connected to the corner of the locking plate (203).

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