Insertion core withdrawing structure of power supply cable connector

Abstract

The utility model relates to a plugging core withdrawing structure of a power supply cable connector, a plugging core of the connector is arranged on a socket, the socket comprises a sleeve and an insulating bush fixed in the middle of the sleeve, and the insulating bush is provided with a jack for plugging the plugging core; the withdrawing structure comprises a lantern ring sleeving the insertion core, a fastener used for locking the insertion core and the insulating bush, and a withdrawing piece used for unlocking the insertion core and the insulating bush. A stop block is arranged in the jack, a convex ring abutting against the stop block is arranged in the middle of the insertion core, the lantern ring and the convex ring are arranged on the two sides of the stop block respectively, a reed is arranged on the lantern ring, the end, away from the stop block, of the reed is fixed to the lantern ring, the end, close to the stop block, of the reed is tilted, the insertion core is sleeved with the fastener, one end of the fastener abuts against the stop block, and the other end of the fastener abuts against the tilted end of the reed; the withdrawing piece is in a sleeve shape, the withdrawing piece is sleeved into the insertion core from the front end of the insertion core and extrudes the reed, and the insertion core and the lantern ring can be backwards withdrawn from the insertion hole; the withdrawing structure can withdraw the insertion core from the socket on the premise that a fixing structure between the insertion core and the insulating bush is not damaged.

Description

Technical Field

[0001] The invention relates to a connector core extraction structure of a power cable connector, belonging to the technical field of power cable connectors. Background Art

[0002] The plug core in the vehicle power cable connector is inserted into the insulating bushing inside the socket, and the two ends are located on both sides of the socket to form a plug and a connection end with the cable respectively.

[0003] After the existing plug is connected to the socket, it needs to be fixed to prevent the plug from shifting during subsequent use or welding of the plug and the cable. However, when the plug is damaged or the cable needs to be replaced, the fixed connection structure between the plug and the insulating bushing can only be destroyed, which can easily cause damage to the insulating bushing, resulting in a waste of resources and increased replacement costs. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a fixing and withdrawing structure for a power cable connector plug core and a socket.

[0005] In order to achieve the above-mentioned purpose, the technical solution proposed by the utility model is: a power cable connector plug-in extraction structure, the plug-in of the connector is arranged on a socket, the socket comprises a sleeve and an insulating bushing fixed in the middle of the sleeve, and the insulating bushing is provided with a jack for inserting the plug-in;

[0006] The withdrawal structure includes a ring sleeved on the plug, a fastener for locking the plug and the insulating bushing, and a withdrawal piece for unlocking the plug and the insulating bushing; a block is provided in the socket, a convex ring abutting against the block is provided in the middle of the plug, the ring and the convex ring are arranged on both sides of the block, a spring is provided on the ring, the end of the spring away from the block is fixed to the ring, and the end close to the block is tilted, the fastener is sleeved on the plug and is located between the block and the ring, one end of the fastener abuts against the block, and the other end abuts against the tilted end of the spring; the withdrawal piece is in the shape of a sleeve, the withdrawal piece is inserted into the plug from the front end of the plug and squeezes the spring, and the plug together with the ring can pass through the fastener and the block backwards and withdraw from the socket.

[0007] A further design of the above technical solution is as follows: an annular groove is provided on the insert, the collar is embedded in the annular groove, and the depth and axial length of the annular groove match the thickness and axial length of the collar respectively.

[0008] The collar is made of elastic material, and a notch is arranged on one side of the collar along the axial direction.

[0009] The collar is provided with a plurality of spring sheets along the circumferential direction.

[0010] The fastener is in a ring shape, and its outer diameter matches the hole diameter of the insertion hole, and its inner diameter matches the outer diameter of the collar.

[0011] An annular step groove is arranged on the inner side of one end of the fastener close to the collar, and the raised end of the spring leaf is embedded in the step groove.

[0012] The stopper is annular, and the inner diameter of the stopper matches the outer diameter of the collar.

[0013] A handle is provided at one end of the extraction member, and a sleeve for inserting the insert core is provided at the other end. The sleeve end is provided with a plurality of deformation slots extending axially to the end along the circumferential direction; the outer wall diameter of the sleeve end gradually decreases toward the end face to form an inclined surface, and the minimum diameter of the inclined surface is smaller than the inner diameter of the step groove, and the maximum diameter is not less than the inner diameter of the step groove.

[0014] The core is divided into a front part, a middle part and a rear part from front to back, and the diameters of the front part, the middle part and the rear part increase successively. The convex ring is arranged at the connection between the middle part and the rear part, and the outer diameter of the convex ring matches the inner diameter of the jack; the diameter of the middle part matches the outer diameter of the sleeve ring.

[0015] The front end of the insert passes through the block and squeezes the spring until the convex ring abuts against the block, and the spring is tilted to restrict the insert in the socket; the fastener is inserted into the insert from the front end of the insert and squeezes the spring until it abuts against the block, and the spring is tilted and embedded in the step groove to fix the insert in the socket.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The structure of the utility model is that a collar is arranged on the insert, a spring is arranged on the collar, and then the insert is fixed on the insulating bushing of the socket by the cooperation of the spring and the fastener;

[0018] When withdrawing the insert, the withdrawing piece is used to squeeze the spring to unlock the spring and the fastener, and the insert and the ring can be withdrawn backward from the insulating bushing. The withdrawal is convenient, the fixing structure between the insert and the insulating bushing will not be damaged, and the insert can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structure explosion diagram of an embodiment of the utility model;

[0020] Figure 2 for Figure 1 Sectional view after assembly;

[0021] Figure 3 for Figure 1 Schematic diagram of the socket structure;

[0022] Figure 4 for Figure 1 Schematic diagram of the middle insert structure;

[0023] Figure 5 for Figure 1 Schematic diagram of the middle ring structure;

[0024] Figure 6 It is a schematic diagram of the matching structure of the ferrule and the collar;

[0025] Figure 7 for Figure 1 Schematic diagram of the fastener structure;

[0026] Figure 8 for Figure 1 Schematic diagram of the structure of the middle withdrawal piece;

[0027] In the figure: 1-socket, 11-insulating bushing, 111-jack, 112-block, 12-sleeve, 2-insert core, 21-front, 22-middle, 221-annular groove, 222-convex ring, 23-rear, 3-ring, 31-reed, 32-notch, 4-fastener, 41-step groove, 5-pull-out piece, 51-sleeve, 52-handle, 53-deformation gap, 54-inclined surface. DETAILED DESCRIPTION

[0028] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments. Embodiment 1

[0029] like Figure 1 and Figure 2 As shown, the power cable connector ferrule fixing and extraction structure of this embodiment includes a socket 1, a ferrule 2, a collar 3, a fastener 4 and an extraction member 5.

[0030] Combination Figure 3 As shown, the socket 1 includes a sleeve 12 and an insulating bushing 11 fixed inside the sleeve 12 , four insertion holes 111 are opened on the insulating bushing 11 , and an annular stopper 112 is provided in the middle of the insertion holes 111 ; the plug core 2 is inserted into the insertion holes 111 and fixed, thereby connecting with the socket 1 .

[0031] The fixing structure of the ferrule 2 and the socket 1 of this embodiment includes a collar 3 and a fastener 4 .

[0032] Combination Figure 4 As shown, the ferrule 2 is composed of a front part 21, a middle part 22 and a rear part 23 from front to back, the diameters of the front part 21, the middle part 22 and the rear part 23 increase successively, and the rear part of the ferrule 2 is in the shape of a sleeve for connecting with a cable; the ferrule 2 is provided with a convex ring 222 at the connection between the middle part and the rear part, and the outer diameter of the convex ring 222 matches the inner diameter of the jack 111; the ferrule 2 is provided with an annular groove 221 in the middle part, and the depth and axial length of the annular groove 221 match the thickness and axial length of the ring 3 respectively; combined Figure 5As shown, the collar 3 is formed by bending an elastic metal sheet into a cylindrical shape, and a notch is formed along the axial direction on one side. The inner diameter of the collar 3 can be changed by changing the size of the notch. The collar 3 is inserted from the front end of the ferrule 3, and the diameter of the collar 3 is enlarged so that the collar continues to be inserted into the middle of the ferrule 2 and is embedded in the annular groove 221. The collar 3 clamps the annular groove 221 so that the outer diameter of the collar 3 matches the diameter of the middle of the ferrule 2. Figure 6 shown.

[0033] Combination Figure 5 As shown, the ring 3 is evenly provided with a plurality of spring leaves 31 along the circumferential direction. One end of the spring leaf 31 close to the front of the ferrule 2 is connected to the ring, and the other end is tilted outward to form an elastic structure.

[0034] Combination Figure 2 As shown, in this embodiment, the inner diameter of the block 112 of the jack 111 matches the middle diameter of the ferrule 2. After the collar 3 is embedded in the annular groove 221, the front end of the ferrule 2 is inserted into the jack 111 from the rear side, and the block 112 squeezes the spring 31. After the spring 31 passes through the block 112, the spring 31 rises, and the convex ring 222 abuts on the block 112. The convex ring 222 and the spring 31 are arranged on both sides of the block 112, thereby restricting the ferrule 2 in the jack 111. At this time, there is a space between the block 112 and the spring 31.

[0035] Combination Figure 7 As shown, the fastener 4 of this embodiment is annular, and its outer diameter matches the inner diameter of the jack 111, and its inner diameter matches the middle diameter of the insert 2; Figure 2 As shown, the fastener 4 is inserted from the front end of the core 2, and the fastener 4 squeezes the spring 31 when passing through the ring 3. After the spring 31 passes through the fastener 4, the spring 31 is tilted, and one end of the fastener 4 is against the stopper 112, and the tilted end of the spring is against the other end of the fastener 4, so that the fastener 4 fills the space between the stopper 112 and the spring 31, and the core 2 is fixed in the socket 111.

[0036] In this embodiment, when the plug core 2 is withdrawn, the withdrawing member 5 is used to perform the operation. Figure 8 As shown, one end of the extraction member 5 is sleeve-shaped, and the inner diameter of the sleeve matches the middle diameter of the insert 2. The sleeve of the extraction member 5 is inserted from the front end of the insert 2. When the front end of the sleeve passes through the spring leaf 31, the spring leaf is squeezed until the front end of the sleeve abuts against the fastener 4. At this time, the insert 2 is pulled backward, and the insert 2 together with the sleeve 3 passes backward through the fastener 4 and the stopper 112, thereby being pushed out of the socket 111.

[0037] The structure of this embodiment fixes the ferrule 2 on the insulating bushing 11 of the socket 1 through the cooperation of the convex ring 222, the stopper 112, the spring 31 and the fastener 4, which plays a role in fixing the ferrule and preventing it from retreating. The spring 31 is squeezed by the withdrawal piece 5, so that the ferrule 2 can be simply and conveniently withdrawn from the socket without destroying the fixing structure of the ferrule 2 and the insulating bushing 11, and without damaging the insulating bushing 11. Embodiment 2

[0038] The structure of this embodiment is basically the same as that of the first embodiment, except that: Figure 7 As shown, in this embodiment, the fastener 4 is provided with an annular step groove 41 on the inner side near one end of the collar 3 . After the fastener 4 is embedded in the space between the filling block 112 and the spring leaf 31 , the raised end of the spring leaf 31 is embedded in and abuts against the step groove 41 .

[0039] like Figure 8 As shown, a handle 52 is provided at one end of the extraction member 5 in this embodiment, and a knurling pattern is provided on the handle 52 for easy holding. A plurality of deformation slots 53 extending axially to the end portion are provided at the sleeve end of the other end of the extraction member 5 along the circumferential direction; the outer wall diameter of the sleeve end portion gradually decreases toward the end face to form an inclined surface 54, and the minimum diameter of the inclined surface 54 is smaller than the inner diameter of the step groove 41, and the maximum diameter is larger than the inner diameter of the step groove or matches the inner diameter of the step groove; when extracting the plug core 2, the sleeve 51 is inserted into the plug core 2, and the end of the sleeve 51 squeezes the spring leaf 31 and can be inserted into the step groove 41, and the spring leaf 31 is completely squeezed to fit the annular groove, and the extraction member 5 is taken out after the plug core 2 is withdrawn; when the maximum diameter of the inclined surface 54 is larger than the inner diameter of the step groove 41, after the plug core 2 is withdrawn, the inclined surface 54 can clamp the fastener 4 with the cooperation of the deformation slot 53, and the fastener 4 can be taken out of the insertion hole 111 when the extraction member 5 is taken out.

[0040] The technical solutions of the present utility model are not limited to the above-mentioned embodiments, and all technical solutions obtained by equivalent replacement methods fall within the scope of protection required by the present utility model.

Claims

1. A plug-in extraction structure for a power cable connector, wherein the plug-in of the connector is arranged on a socket, the socket comprises a sleeve and an insulating bushing fixed in the middle of the sleeve, and the insulating bushing is provided with a jack for inserting the plug-in; Features: The withdrawal structure includes a ring sleeved on the plug, a fastener for locking the plug and the insulating bushing, and a withdrawal piece for unlocking the plug and the insulating bushing; a block is provided in the socket, a convex ring abutting against the block is provided in the middle of the plug, the ring and the convex ring are arranged on both sides of the block, a spring is provided on the ring, the end of the spring away from the block is fixed to the ring, and the end close to the block is tilted, the fastener is sleeved on the plug and is located between the block and the ring, one end of the fastener abuts against the block, and the other end abuts against the tilted end of the spring; the withdrawal piece is in the shape of a sleeve, the withdrawal piece is inserted into the plug from the front end of the plug and squeezes the spring, and the plug together with the ring can pass through the fastener and the block backwards and withdraw from the socket.

2. The power cable connector plug-in extraction structure according to claim 1, characterized in that: The insert is provided with an annular groove, the collar is embedded in the annular groove, and the depth and axial length of the annular groove are matched with the thickness and axial length of the collar respectively.

3. The power cable connector plug-in extraction structure according to claim 2, characterized in that: The sleeve ring is made of elastic material, and a notch is arranged on one side of the sleeve ring along the axial direction.

4. The power cable connector plug-in extraction structure according to claim 3, characterized in that: The collar is provided with a plurality of spring sheets along the circumferential direction.

5. The power cable connector plug-in extraction structure according to claim 4, characterized in that: The fastener is in a ring shape, and its outer diameter matches the hole diameter of the insertion hole, and its inner diameter matches the outer diameter of the collar.

6. The power cable connector plug-in extraction structure according to claim 5, characterized in that: An annular step groove is arranged on the inner side of one end of the fastener close to the collar, and the raised end of the spring leaf is embedded in the step groove.

7. The power cable connector plug-in extraction structure according to claim 6, characterized in that: A handle is provided at one end of the extraction member, and a sleeve for inserting the insert core is provided at the other end. The sleeve end is provided with a plurality of deformation slots extending axially to the end along the circumferential direction; the outer wall diameter of the sleeve end gradually decreases toward the end face to form an inclined surface, and the minimum diameter of the inclined surface is smaller than the inner diameter of the step groove, and the maximum diameter is not less than the inner diameter of the step groove.

8. The power cable connector plug-in extraction structure according to claim 1, characterized in that: The stopper is annular, and the inner diameter of the stopper matches the outer diameter of the collar.

9. The power cable connector plug-in extraction structure according to claim 1, characterized in that: The core is divided into a front part, a middle part and a rear part from front to back, and the diameters of the front part, the middle part and the rear part increase successively. The convex ring is arranged at the connection between the middle part and the rear part, and the outer diameter of the convex ring matches the inner diameter of the jack; the diameter of the middle part matches the outer diameter of the sleeve ring.

10. The power cable connector plug-in extraction structure according to claim 1, characterized in that: The front end of the insert passes through the block and squeezes the spring until the convex ring abuts against the block, and the spring is tilted to restrict the insert in the socket; the fastener is inserted into the insert from the front end of the insert and squeezes the spring until it abuts against the block, and the spring is tilted and embedded in the step groove to fix the insert in the socket.

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