Self-locking electric connection module

Abstract

The utility model discloses a self-locking electric connection module which comprises a first connection unit and a second connection unit which are detachably connected. The first connecting unit is provided with a first inserting body; a guide groove and a locking groove are formed in the outer wall of the first inserting body, the guide groove extends from the end face of the first inserting body to the middle of the first inserting body, and the locking groove extends from the bottom of the guide groove in the circumferential direction of the first inserting body. The second connecting unit comprises a second inserting body and a locking piece; the second plug-in body and the first plug-in body can be connected in a plug-in manner, and cannot rotate relatively after being connected in a plug-in manner; the locking piece can rotate and cannot axially move relative to the second plugging body, and a torsional spring is arranged between the locking piece and the second plugging body; the locking piece is provided with a protruding block capable of being embedded into the locking groove. According to the scheme of the utility model, the two connecting units can be quickly plugged and self-locked, the operation is convenient, and the connection is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connection modules, in particular to a self-locking electric connection module. Background Art

[0002] In the prior art, in order to achieve the conduction of electrical energy and signals, a plug-in connector is required. Commonly used plug-in connectors do not have a locking function. After connection, the cable may be disengaged due to force, affecting the stability of the connection. Commonly used connectors with a locking function, such as the connector shown in CN106299868A, are locked by a nut to prevent disengagement. However, this structure is relatively complicated to operate, inconvenient to operate, and has average reliability. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a self-locking electrical connection module that can achieve rapid self-locking, is easy to operate and has reliable connection.

[0004] Technical solution: To achieve the above-mentioned purpose, the self-locking electrical connection module of the utility model comprises a first connection unit and a second connection unit which are detachably connected;

[0005] The first connecting unit has a first plug-in body; a guide groove and a locking groove are formed on the outer wall of the first plug-in body, the guide groove extends from the end surface of the first plug-in body to the middle of the first plug-in body, and the locking groove extends from the bottom of the guide groove along the circumference of the first plug-in body;

[0006] The second connecting unit includes a second plug-in body and a locking piece; the second plug-in body can be plug-connected with the first plug-in body, and the two cannot rotate relative to each other after being plugged in; the locking piece can rotate relative to the second plug-in body but cannot move axially, and a torsion spring is arranged between the two; the locking piece has a protrusion that can be embedded in the locking groove.

[0007] Furthermore, the guide groove is a V-shaped structure that gradually narrows in a direction extending from the plug-in end surface of the first plug-in body toward the middle thereof.

[0008] Furthermore, the first plug-in body has an inner hole with a convex ridge, and the second plug-in body has a cylindrical portion with a groove. After the first plug-in body and the second plug-in body are plugged into each other, the cylindrical portion is embedded in the inner hole, and the convex ridge is embedded in the groove.

[0009] Furthermore, two protruding units are formed on the outer wall of the second plug-in body, a guide slide groove is formed between the two protruding units, and a guide slide edge capable of sliding in the guide slide groove is formed in the middle hole of the locking member.

[0010] Furthermore, the second connecting unit also includes a base and a locking ring, and the locking ring can rotate relative to the base; a limiting protrusion is formed on the second plug-in body, the base has a first groove body for the limiting protrusion to be embedded, and the locking ring has a second groove body that matches the shape of the limiting protrusion.

[0011] Furthermore, the second plug-in body has a clamping block acting on the inner wall of the locking ring.

[0012] Furthermore, the outer wall of the locking ring is provided with an outwardly protruding stop portion; the base is provided with a stop block for limiting the position of the stop portion; when the locking ring locks the second plug-in body, the stop portion abuts against the stop block.

[0013] Furthermore, the first plug-in body has a thread, and the first connecting unit also has a nut that can be screwed onto the thread.

[0014] Furthermore, the base includes a base body and a cover body, and the base body and the cover body are connected via a snap-fit ​​structure; the base body is connected to a cable, and the cover body has an outlet hole for the cable to pass through.

[0015] Furthermore, an annular groove and a radial groove are formed on the seat body, and an embedding portion is formed on the locking ring. The embedding portion can enter the annular groove along the radial groove and can slide along the annular groove.

[0016] Beneficial effect: In the self-locking electrical connection module of the utility model, during the docking process between the first connection unit and the second connection unit, the first plug-in body and the second plug-in body are plugged into each other, and at the same time, the protrusion squeezes the edge of the guide groove, so that the locking piece rotates forward relative to the second plug-in body, the torsion spring accumulates force, the first plug-in body and the second plug-in body are plugged into place, the protrusion reaches the bottom of the guide groove, the force of the torsion spring is released, so that the locking piece rotates in the opposite direction relative to the second plug-in body, and the protrusion enters the locking groove, so that the protrusion can limit the first plug-in body and the second plug-in body so that the two will not disengage, realize self-locking, and ensure the reliability of the connection. If unlocking is required, it is necessary to rotate the locking piece first, and then apply axial thrust to the first connection unit. The above-mentioned electrical connection module can transmit power and / or signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of a self-locking electrical connection module;

[0018] Figure 2 It is a cross-sectional structural diagram of a self-locking electrical connection module;

[0019] Figure 3 It is an exploded view of the self-locking electrical connection module;

[0020] Figure 4 is a structural diagram of the first plug-in body;

[0021] Figure 5 is a structural diagram of a locking member;

[0022] Figure 6 is a structural diagram of the second plug-in body;

[0023] Figure 7 is a structural diagram of the locking ring;

[0024] Figure 8 This is a structural diagram of the cover.

[0025] In the figure: A-first connecting unit; B-second connecting unit; 1-first plug-in body; 11-thread; 12-guide groove; 13-locking groove; 2-second plug-in body; 21-protruding unit; 22-limiting protrusion; 23-squeezing block; 3-locking member; 31-protrusion; 32-guide edge; 4-torsion spring; 5-base; 51-seat body; 52-cover body; 5a-first groove body; 5b-stop block; 5c-annular groove; 5d-radial groove; 6-locking ring; 61-second groove body; 62-stop portion; 63-embedded portion; 7-nut. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-3 The self-locking electrical connection module shown includes a first connection unit A and a second connection unit B that are detachably connected.

[0028] The first connecting unit A has a first plug-in body 1, such as Figure 4 As shown, a guide groove 12 and a locking groove 13 are formed on the outer wall of the first plug-in body 1, the guide groove 12 extends from the end surface of the first plug-in body 1 to the middle of the first plug-in body 1, and the locking groove 13 extends from the bottom of the guide groove 12 along the end of the first plug-in conductor 11.

[0029] The second connection unit B includes a second plug-in body 2 and a locking member 3; the second plug-in body 2 can be plugged and connected with the first plug-in body 1 so that the conductors on the two are conductive, and the two cannot rotate relative to each other after being plugged; the locking member 3 can rotate relative to the second plug-in body 2 but cannot move axially, and a torsion spring 4 is provided between the two; Figure 5 As shown, the locking member 3 has a protrusion 31 that can be embedded in the locking groove 13 .

[0030] Preferably, the guide groove 12 is a V-shaped structure that gradually narrows in a direction extending from the plug-in end surface of the first plug-in body 1 toward the middle thereof.

[0031] With the above structure, during the docking process, when the first connection unit A and the second connection unit B are docked, the first plug-in body 1 and the second plug-in body 2 are plugged into each other, and at the same time, the protrusion 31 squeezes the edge of the guide groove 12, so that the locking member 3 rotates forward relative to the second plug-in body 2, the torsion spring 4 accumulates force, the first plug-in body 1 and the second plug-in body 2 are plugged into place, the protrusion 31 reaches the bottom of the guide groove 12, the force of the torsion spring 4 is released, so that the locking member 3 rotates in the opposite direction relative to the second plug-in body 2, and the protrusion 31 enters the locking groove 13, so that the protrusion 31 can limit the first plug-in body 1 and the second plug-in body 2 so that the two will not disengage, realize self-locking, and ensure the reliability of the connection. If unlocking is required, the locking member 3 needs to be rotated first, and then an axial thrust is applied to the first connection unit A.

[0032] Preferably, the first plug-in body 1 has an inner hole with a convex ridge, and the second plug-in body 2 has a cylindrical portion with a groove. After the first plug-in body 1 and the second plug-in body 2 are plugged into each other, the cylindrical portion is embedded in the inner hole, and the convex ridge is embedded in the groove, so that the two plug-in bodies will not rotate relative to each other after being plugged into each other.

[0033] Preferably, if Figure 6 As shown, two protruding units 21 are formed on the outer wall of the second plug-in body 2, a guide groove is formed between the two protruding units 21, and a guide edge 32 that can slide in the guide groove is formed in the middle hole of the locking member 3, so that the locking member 3 can rotate relative to the second plug-in body 2 but cannot slide axially; one end of the guide edge 32 has a limiting portion to limit the relative position of the locking member 3 and the second plug-in body 2, and the torsion spring 4 acts to make the protruding unit 21 abut against the limiting portion.

[0034] Preferably, the second connecting unit B further comprises a base 5 and a locking ring 6, wherein the locking ring 6 can rotate relative to the base 5; a limiting protrusion 22 is formed on the second plug-in body 2, and the base 5 has a first groove 5a for the limiting protrusion 22 to be embedded. Figure 7 As shown, the locking ring 6 has a second groove 61 that matches the shape of the limiting protrusion 22. During installation, the locking ring 6 is first rotated to a position where the second groove 61 is aligned with the first groove 5a, and then the limiting protrusion 22 of the second plug-in body 2 passes through the second groove 61 and enters the first groove 5a, and finally the locking ring 6 is rotated to misalign the second groove 61 with the limiting protrusion 22, so that the locking ring 6 can prevent the second plug-in body 2 from being separated from the base 5.

[0035] Preferably, the second plug-in body 2 has a clamping block 23 acting on the inner wall of the locking ring 6 , and the clamping block 23 can prevent the locking ring 6 from rotating on its own.

[0036] Preferably, the outer wall of the locking ring 6 has an outwardly protruding stop portion 62; the base 5 has a stop block 5b for limiting the position of the stop portion 62; when the locking ring 6 locks the second plug-in body 2, the stop portion 62 abuts against the stop block 5b.

[0037] Preferably, the first plug body 1 has a thread 11, and the first connection unit A also has a nut 7 that can be screwed on the thread 11. The nut 7 can pre-fix the first connection unit A in the installation position, so that the second connection unit B can be plugged in and out relative to the first connection unit A.

[0038] Preferably, the base 5 includes a base body 51 and a cover body 52, and the base body 51 and the cover body 52 are connected by a snap-on structure; the base body 51 is connected to the cable, and the cover body 52 has an outlet hole for the cable to pass through, and the cable is connected to the conductor on the second plug-in body 2 after passing through the outlet hole.

[0039] Preferably, if Figure 8 As shown, the seat body 51 is formed with an annular groove 5c and a radial groove 5d, and the locking ring 6 is formed with an embedding portion 63, which can enter the annular groove 5c along the radial groove 5d and can slide along the annular groove 5c.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A self-locking electrical connection module, characterized in that: It comprises a first connecting unit (A) and a second connecting unit (B) which are detachably connected; The first connecting unit (A) comprises a first plug-in body (1); a guide groove (12) and a locking groove (13) are formed on the outer wall of the first plug-in body (1); the guide groove (12) extends from the end surface of the first plug-in body (1) to the middle part of the first plug-in body (1); and the locking groove (13) extends from the bottom of the guide groove (12) along the circumference of the first plug-in body (1); The second connecting unit (B) comprises a second plug-in body (2) and a locking member (3); the second plug-in body (2) can be plug-connected with the first plug-in body (1), and the two cannot rotate relative to each other after being plugged in; the locking member (3) can rotate relative to the second plug-in body (2) but cannot move axially, and a torsion spring (4) is provided between the two; the locking member (3) has a protrusion (31) that can be embedded in the locking groove (13).

2. The self-locking electrical connection module according to claim 1, characterized in that: The guide groove (12) is a V-shaped structure that gradually narrows in a direction extending from the plug-in end surface of the first plug-in body (1) toward the middle thereof.

3. The self-locking electrical connection module according to claim 1, characterized in that: The first plug-in body (1) has an inner hole with a convex ridge, and the second plug-in body (2) has a cylindrical portion with a groove. After the first plug-in body (1) and the second plug-in body (2) are plugged into each other, the cylindrical portion is embedded in the inner hole, and the convex ridge is embedded in the groove.

4. The self-locking electrical connection module according to claim 1, characterized in that: Two protruding units (21) are formed on the outer wall of the second plug-in body (2), a guide groove is formed between the two protruding units (21), and a guide edge (32) capable of sliding in the guide groove is formed in the middle hole of the locking member (3).

5. The self-locking electrical connection module according to claim 1, characterized in that: The second connecting unit (B) further comprises a base (5) and a locking ring (6), wherein the locking ring (6) is rotatable relative to the base (5); a limiting protrusion (22) is formed on the second plug-in body (2), the base (5) comprises a first groove (5a) for the limiting protrusion (22) to be embedded, and the locking ring (6) comprises a second groove (61) which matches the shape of the limiting protrusion (22).

6. The self-locking electrical connection module according to claim 5, characterized in that: The second plug-in body (2) has a clamping block (23) acting on the inner wall of the locking ring (6).

7. The self-locking electrical connection module according to claim 5, characterized in that: The outer wall of the locking ring (6) is provided with an outwardly protruding stop portion (62); the base (5) is provided with a stop block (5b) for limiting the position of the stop portion (62); when the locking ring (6) locks the second plug-in body (2), the stop portion (62) abuts against the stop block (5b).

8. The self-locking electrical connection module according to claim 1, characterized in that: The first plug-in body (1) has a thread (11), and the first connecting unit (A) also has a nut (7) that can be screwed onto the thread (11).

9. The self-locking electrical connection module according to claim 5, characterized in that: The base (5) comprises a base body (51) and a cover body (52), wherein the base body (51) and the cover body (52) are connected via a snap-fit ​​structure; the base body (51) is connected to a cable, and the cover body (52) has an outlet hole for the cable to pass through.

10. The self-locking electrical connection module according to claim 9, characterized in that: An annular groove (5c) and a radial groove (5d) are formed on the seat body (51), and an embedding portion (63) is formed on the locking ring (6). The embedding portion (63) can enter the annular groove (5c) along the radial groove (5d) and can slide along the annular groove (5c).

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