Connector capable of saving labor in plugging and unplugging

Abstract

The connector comprises a housing, a PCB circuit board and a cable connected with the PCB circuit board, the outer side of the housing is provided with a locking clamping tooth used for preventing the connector from being pulled by mistake and a drawstring used for unlocking the locking clamping tooth, and the drawstring is covered with a cover plate pressing sheet used for resetting the drawstring. A turning plate enabling the cover plate pressing piece to deform is further arranged between the cover plate pressing piece and the shell, the drawstring is connected with the turning plate, the pulling force of the drawstring can be reduced through turning operation of the turning plate, operation of the drawstring is more labor-saving, portable and easy, meanwhile, the turning plate can drive the drawstring to reset in time under the pressure of the cover plate, and the stability of the structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of connector structures for external lines of communication signal lines, in particular to a connector that saves labor in plugging and unplugging. Background Art

[0002] As an important structure of information communication, connectors play an increasingly important role in modern social life. Due to the importance of connectors, the quality requirements of their products will become higher and higher. Connectors are generally equipped with an anti-mis-pull design, which is mainly used to prevent the connector from being accidentally pulled or pulled out when it is not ready. This structure is usually implemented by a slider, cam or similar mechanism, which can increase the stability and reliability of the connector and reduce damage or accidents caused by misoperation. In addition, the anti-mis-pull structure can also be implemented by increasing the friction of the connector or changing the shape of the connector to prevent the connector from being accidentally pulled or pulled out.

[0003] Patent ZL201720516551.2 provides a common structure to prevent mis-pull, which realizes the lifting and resetting of the spring sheet by the push action of the convex shaft at the front end of the pull belt on the spring sheet. Since the front end of the spring sheet is provided with a lock convex part, the lock spring sheet will be lifted and reset along with the spring sheet, thereby realizing the locking and unlocking of the structure to prevent mis-pull. However, it is found in practice that the convex shaft in the above structure not only offsets the friction between the spring sheet and the shell, but also applies upward pressure from the middle section of the spring sheet to cause the spring sheet to deform, so the plugging and unplugging process is more laborious, and the above structure needs to be further optimized. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a connector that is labor-saving to plug and unplug, so that when plugging and unplugging the connector, pulling the drawstring is more labor-saving, easy and easy to operate.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A connector that saves effort in plugging and unplugging, comprising a shell, a PCB circuit board and a cable connected to the PCB circuit board, wherein the outer side of the shell is provided with locking teeth for preventing the connector from being pulled in error and a drawstring for unlocking the locking teeth, the drawstring is covered with a cover plate pressing piece for resetting the drawstring, a flap for deforming the cover plate pressing piece and the shell is further provided, and the drawstring is connected to the flap.

[0007] Preferably, the locking teeth are located at two corners of the front end of the flap.

[0008] Preferably, the locking teeth are located at two corners of the front end of the cover plate pressing piece.

[0009] Preferably, the housing comprises a first shell and a second shell which cover each other from top to bottom, and a complementary position limiting snap-fitting structure is provided between the first shell and the second shell.

[0010] Preferably, the outer side of the housing mounting strap protrudes outward to form a limiting column, the strap is provided with a limiting groove, the cover plate pressing plate is provided with a mounting hole, and the limiting column passes through the limiting groove and is inserted into the mounting hole.

[0011] Preferably, the cover plate pressing piece is a T-shaped structure, including a transverse fixing strip, both ends of which are provided with fixing holes for fixing to the shell, the center of the transverse fixing strip extends toward the front end of the connector to form a pressure strip, and a space for accommodating the flap is formed between the pressure strip and the shell.

[0012] Preferably, the flap is a curved plate bent toward the housing, an edge of the flap close to the drawstring is the axis of the flap flipping, and a hook plate for receiving external pulling action is provided on the outer side of the curved plate near the axis.

[0013] Preferably, the rivet passes through the fixing hole and rivets the shell of the housing together.

[0014] After the utility model adopts the above solution, since a flap structure is added between the cover plate pressing piece and the shell, the action point of the flap force is located at the front end of the cover plate pressing strip, and the support point of the strip deformation is the rear end of the cover plate pressing piece. According to the lever principle, compared with the direct push of the spring sheet, the utility model is more labor-saving, light and easy to operate. At the same time, the flap will drive the drawstring to reset in time under the pressure of the strip, which can ensure the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the utility model;

[0016] Figure 2 This is an assembly diagram of the utility model in which the locking teeth are locked;

[0017] Figure 3 This is an assembly diagram of the utility model when the locking teeth are unlocked;

[0018] Figure 4 It is a schematic diagram of the first shell structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the state of the flap when the drawstring is pulled out and released. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] A connector that saves effort when plugging and unplugging, such as Figure 1-4 As shown, it is a preferred embodiment of the utility model. In this embodiment, the connector includes a housing 1, a PCB circuit board 2 and a cable 3 connected to the PCB circuit board 2. The PCB circuit board 2 is provided with a gold finger, and the cable 3 is connected to the gold finger by welding. This structure is well known to those skilled in the art and will not be further described here. In order to prevent the connector inserted in the host from falling off due to touching or scratching, the outer side of the housing 1 is also provided with a locking tooth 4 for preventing the connector from being pulled by mistake and a pull belt 5 for unlocking the locking tooth 4. When the connector is inserted into the host, the locking tooth 4 passes through the locking piece inside the connector insertion interface and is clamped on the connector housing 1 to prevent the connector from being pulled by mistake; when the connector is to be pulled out, the locking tooth 4 can be driven to leave the housing 1 by pulling the pull belt 5, unlocking the locking piece inside the interface, and then the connector can be smoothly detached from the host interface.

[0022] The upper cover of the drawstring 5 is connected with a cover plate pressing piece 6 for resetting the drawstring 5. When the drawstring 5 is released, the cover plate pressing piece 6 re-engages the locking teeth 4 on the connector housing 1 and resets the drawstring 5. In order to reduce the hindrance to the movement of the drawstring 5 caused by the internal friction of the connector when the drawstring 5 is pulled, a flap 7 for deforming the cover plate pressing piece 6 is further provided between the cover plate pressing piece 6 and the housing 1 in this embodiment. The drawstring 5 is connected to the flap 7. In normal state, the cover plate pressing piece 6 is pressed against the front end of the flap 7, so that the front end of the flap 7 is close to the housing 1. When the drawstring 5 is pulled, the drawstring 5 drives the flap 7 to flip, so that the front end of the flap 7 leaves the housing 1 and tilts backward, thereby deforming the cover plate pressing piece 6.

[0023] Specifically, the housing 1 of the connector includes a first shell 11 and a second shell 12 that cover each other from top to bottom. A complementary position-limiting snap-fitting structure is provided between the first shell 11 and the second shell 12. In this embodiment, the first shell 11 is located at the top and the second shell 12 is located at the bottom. The upper edge of the front end side wall of the first shell 11 is provided with a downward barb 13, and the hook tip of the barb 13 is an arc chamfer. The upper edge of the front end side wall of the second shell 12 is an arc-shaped protrusion 14 adapted to the barb 13. The hinge mechanism composed of the barb 13 and the protrusion 14 is the above-mentioned position-limiting snap-fitting structure, and the position-limiting snap-fitting structure can ensure the stability of the relative position between the two shells. When the first shell 11 and the second shell 12 cover each other, the protrusion 14 is snapped into the barb 13. The arc design of the hook tip and the protrusion 14 mainly satisfies that the protrusion 14 can slide into the barb 13 more easily during assembly. Of course, this complementary position-limiting snap-fitting structure can also have other forms, such as a serrated shape, etc., and any complementary structure that can achieve the same function can be used.

[0024] In this embodiment, the locking teeth 4 and the drawstring 5 are arranged on the upper surface of the first shell 11 located at the top. In this case, the direction along which the connector is inserted into the host is the front, and the first shell 11 is divided into a front section 111 and a rear section 112. The upper surface of the rear section 11 of the first shell is provided with a T-shaped installation groove for installing structures such as the drawstring 5, the cover plate pressing piece 6 and the flap 7. The transverse groove of the T-shaped installation groove is close to the rear end of the rear section 112, and the center of the transverse groove extends forward to the connection between the front section 111 and the rear section 112 to form a vertical groove. The outer surface of the outer shell 1 where the drawstring 5 is installed protrudes outward to form a limiting column 15. Specifically, the limiting column 15 is located at the center of the vertical groove. The drawstring 5 is provided with a limiting groove 51. The drawstring 5 is placed in the vertical groove. The cover plate pressing piece 6 is provided with a mounting hole 61. The limiting column 15 passes through the limiting groove 51 and is inserted into the mounting hole 61. The vertical groove and the limiting groove 51 ensure that the drawstring 5 can slide stably forward and backward in the vertical groove.

[0025] Correspondingly, the cover plate pressing piece 6 is a T-shaped structure, and the cover plate pressing piece 6 is placed in the T-shaped mounting groove. The cover plate pressing piece 6 includes a transverse fixing strip 62, and fixing holes 63 for fixing to the housing 1 are provided at both ends of the transverse fixing strip 62. The first housing 11 and the second housing 12 are also provided with fixing holes 17 at corresponding positions. After the rivet 8 passes through the fixing hole 63, the two shells of the housing 1 are riveted together through the fixing holes 17 to achieve mutual fixation between the three. The center of the transverse fixing strip 62 extends toward the front end of the connector to form a pressure strip 64, and a space for accommodating the flap 7 is formed between the pressure strip 64 and the housing 1. Specifically, a slope that gradually descends forward is provided in the vertical groove, and the front end of the pressure strip 64 is close to the vertical groove. The inclination angle of the pressure strip 64 is inconsistent with the inclination angle of the slope, so that the above-mentioned space is reserved between the two.

[0026] The flap 7 is a curved plate 71 bent toward the housing 1. One side of the flap 7 close to the drawstring 5 is the axis of the flap 7 flipping. A groove 113 for installing the flap 7 is provided at the bottom end of the vertical groove slope, i.e., the connection between the rear section 112 and the front section 111. The rear side 72 corresponding to the flipping axis of the flap 7 is inserted into the groove 113. Since the groove 113 is shallow, the flap 7 can be flipped at a small angle around the rear side 72. A hook plate 73 for receiving external pulling action is provided near the axis on the outer side of the curved plate 71. The hook plate 73 tilts upward. A hook plate hole 52 is provided at the front end of the drawstring 5. Through the hook plate hole 52, the front end of the drawstring 5 is sleeved on the hook plate 73. When the drawstring 5 is pulled backward, the flap 7 is driven to flip backward, and the front end of the flap 7 tilts upward.

[0027] During installation, first put the flap 7 into the groove 113, and then cover it with the cover plate pressing piece 6. The front end of the pressure strip 64 of the cover plate pressing piece 6 is pressed against the upper surface of the front end of the flap 7. Under normal circumstances, the front end of the flap 7 is close to the upper surface of the front section 111 of the shell 1 under the action of the cover plate pressing piece 6. When the pull strap 5 is pulled, the pull strap 5 drives the flap 7 to make the front end of the flap 7 leave the upper surface of the front end of the shell 1, and then lift up the front end of the pressure strip 64.

[0028] Since the front end of the flap 7 and the front end of the pressure strip 64 will both rise when the drawstring 5 is pulled backward, the locking teeth 4 can be set at the front end of either of them. In this embodiment, the locking teeth 4 are located at the two corners of the front end of the flap 7 and are an integral structure with the flap 7. Of course, the locking teeth 4 can also be located at the two corners of the front end of the cover plate pressing sheet 6 and are an integral structure with the cover plate pressing sheet 6. In this case, the flap 7 can be hidden at the bottom of the front end of the cover plate pressing sheet 6. A locking concave point 16 adapted to the locking teeth 4 is provided at the connection between the front section 111 and the rear section 112 of the first shell 11. When the locking teeth 4 are close to the shell 1, they are inserted into the locking concave point 16.

[0029] In summary, since the action point of the flap 7 is located at the front end of the pressure strip 64, and the support point for the deformation of the pressure strip 64 is the rear end of the cover plate pressure plate 6, according to the lever principle, compared with the push of the pull belt against the spring sheet in the background technology, the utility model is more labor-saving, light, and easy to operate. When the pull belt 5 is released, the pressure strip 64 recovers its deformation, causing the flap 7 to flip forward, and the front end is pressed against the upper surface of the front section 111 of the first shell 11 again, and the flap 7 flips forward to drive the pull belt 5 to move forward to achieve the reset of the pull belt 5.

[0030] The above description is only a preferred embodiment of the utility model and does not limit the technical scope of the utility model. Therefore, any changes or modifications made according to the claims and description of the utility model should fall within the scope of the utility model patent.

Claims

1. A connector with labor-saving plugging and unplugging, comprising a housing, a PCB circuit board and a cable connected to the PCB circuit board, characterized in that: The outer side of the shell is provided with a locking tooth for preventing the connector from being pulled by mistake and a drawstring for unlocking the locking tooth. The drawstring is covered with a cover plate pressing piece for resetting the drawstring. A flap for deforming the cover plate pressing piece is also provided between the cover plate pressing piece and the shell, and the drawstring is connected to the flap.

2. The connector with labor-saving plugging and unplugging according to claim 1, characterized in that: The locking teeth are located at two corners of the front end of the flap.

3. The connector with labor-saving plugging and unplugging according to claim 1, characterized in that: The locking teeth are located at two corners of the front end of the cover plate pressing piece.

4. The connector with labor-saving plugging and unplugging according to claim 1, characterized in that: The housing comprises a first shell and a second shell which cover each other from top to bottom, and a complementary position limiting clamping structure is provided between the first shell and the second shell.

5. The connector with labor-saving plugging and unplugging according to claim 1, characterized in that: The outer side of the housing mounting strap protrudes outward to form a limiting column, the strap is provided with a limiting groove, the cover plate pressing piece is provided with a mounting hole, and the limiting column passes through the limiting groove and is inserted into the mounting hole.

6. The connector with labor-saving plugging and unplugging according to claim 1, characterized in that: The cover plate pressing piece is a T-shaped structure, including a transverse fixing strip, both ends of which are provided with fixing holes for fixing on the shell, the center of the transverse fixing strip extends toward the front end of the connector to form a pressure strip, and a space for accommodating the flap is formed between the pressure strip and the shell.

7. The connector with labor-saving plugging and unplugging according to claim 1, characterized in that: The flap is a curved plate bent toward the shell, one side of the flap close to the drawstring is the axis of the flap flipping, and a hook plate for receiving external pulling action is provided on the outer side of the curved plate near the axis.

8. The connector with labor-saving plugging and unplugging according to claim 6, characterized in that: The rivets pass through the fixing holes and rivet the shells of the housing together.

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