CN213212483U - Wire clamp assembly and electric connector with same - Google Patents

Abstract

A wire clamp assembly comprises a wire clamp, which comprises a columnar body (51) and a tightening claw bar (52); the sealing sleeve is arranged in an inner space enclosed by the tightening claw strips (52); a groove (55) is formed in the first end face of the body (51) along the circumferential direction, the groove (55) is arranged to avoid the through hole (53) in the body (51), and a protrusion (56) is formed between the groove (55) and the through hole (53); the sealing sleeve (6) is provided with an outer convex part (61) in a protruding mode along the circumferential direction, the outer convex part (61) is inserted into the groove (55), and under the condition that the tightening claw strips (52) are folded, the outer convex part (61) is in sealing fit with the groove (55) and the corresponding end faces of the protrusion (56) and the sealing sleeve (6). The application also discloses an electrical connector with the wire clamp assembly. Compared with the prior art, this application need not to increase the quantity of sealing member and can realize at least twice whole waterproof function.

Description

Wire clamp assembly and electric connector with same

Technical Field

The utility model belongs to the technical field of electrically conductive connecting device, concretely relates to fastener subassembly and have electric connector of this fastener subassembly.

Background

The electric connector is a common component in lighting, electronic and communication engineering, and is used for communicating a circuit which is blocked or isolated and not communicated in the circuit so as to electrify the circuit and further realize a preset function.

The structure that current electric connector structure as disclosed in utility model patent of patent number ZL201721244456.8 utility model plug (the grant bulletin number is CN207338795U), the utility model patent of patent number ZL201821015089.9 utility model patent an electric connector (the grant bulletin number is CN208385649U) etc, many including the shell, the fastener, electricity connection main part and tail cover, the shell links to each other with the tail cover, the fastener is connected the space that the main part setting formed after shell and tail cover are connected with the electricity, the electric wire passes the tail cover in proper order, be connected with electricity connection main part behind the fastener, can tighten up one end of fastener after shell and tail cover are connected, make the fastener tightly surround the electric wire.

Because the link of electric wire is located shell and tail cover, if the leakproofness between electric connector and the electric wire is not good can lead to the inside condition such as electric leakage that takes place of electric connector that intakes, has certain potential safety hazard of safety, consequently, electric connector's waterproof performance is an important index. In the existing patent, the method of sealing the wire clamp and the electric wire after one end of the wire clamp is tightened by arranging a sealing sleeve in the wire clamp (such as the ZL201821015089.9 patent) is realized, and the method only has a whole-circle waterproof structure and still has the risk of water inflow. As another example, in the structure disclosed in patent No. ZL201110253789.8, an invention patent "a sealed electrical connector for underwater plug and socket insertion" (No. CN102957039B), the sealing plug and the insulator in the sealed socket and each contact element are designed to be sealed independently, a multi-step interference fit structure is designed between all the contact elements and the insulator to seal, a dovetail chute structure is designed between the insulator and the housing, the tail of the electrical connector is encapsulated, all the contact elements are designed to be sealed individually, a similar O-ring structure is designed in each contact point of the connector mating surface, and 3 sealing rings are designed, so that the sealing plug and the sealed socket can be mated underwater, and the sealing performance is good. However, the structure is complex, and more sealing rings need to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, provides one kind and need not to increase the quantity of sealing member and can realize twice or the waterproof function's of the whole circle wire clip subassembly more than twice.

The utility model aims to solve the second technical problem that an electric connector that has above-mentioned fastener subassembly is provided.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a wire clamp assembly comprising:

the wire clamp comprises a columnar body and a plurality of tightening claw strips, wherein a through hole is formed in the middle of the body in the axial direction, and the tightening claw strips are circumferentially distributed on an outer ring of the first end face of the body at intervals and axially extend;

the sealing sleeve is arranged in an inner space enclosed by the tightening claw strips, the interior of the sealing sleeve is hollow and communicated with the through hole to pass through a power supply line; the sealing sleeve is tightly propped against the body when the tightening claw strips are folded;

the method is characterized in that:

a groove is arranged on the first end surface of the body along the circumferential direction, and the groove is arranged to avoid the through hole on the body so as to form a bulge between the groove on the body and the through hole; and the sealing sleeve is convexly provided with an outer convex part matched with the groove along the circumferential direction, the outer convex part is inserted into the groove, and further, under the state that the tightening claw strips are folded, the outer convex part is in sealing fit with the groove and the corresponding end surface of the protrusion and the sealing sleeve to form at least two seals.

In order to further improve the waterproof performance, preferably, the peripheral wall of the sealing sleeve is provided with a sealing ring in a protruding mode along the circumferential direction, and the sealing ring is arranged corresponding to the side wall of the groove in the body to form sealing fit.

Further, still including the sealing washer, the cell body has been seted up along circumference on the periphery wall of body, the sealing washer cover is established on the cell body.

Furthermore, the second end face of the body is provided with two parallel clamping sheets, and each clamping sheet extends along the axial direction.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the utility model provides an electric connector, includes shell and tail cover, the shell is front and back both ends open-ended tubular structure, the tail cover links to each other with the rear end of shell, its characterized in that still includes as above the fastener subassembly, the fastener subassembly sets up in the shell, just tighten up the claw strip with the tail cover is relative, be equipped with on this tail cover with above-mentioned tighten up the part that the claw strip draws in with the drive when the tail cover is connected to the shell in the rear end portion cooperation at least.

In the above scheme, in order to achieve that the tail sleeve can be better folded after being connected to the shell, the improvement is that at least the rear end part of the tightening claw strip is exposed out of the shell and is positioned in the tail sleeve, the corresponding inner wall on the tail sleeve is a conical surface with the caliber gradually reduced from front to back, and the conical surface is the above part. Of course, the part for driving the tightening claw strip to be drawn in is not limited to the structure of the conical surface, and the part with the diameter capable of being contracted can also be adopted, after the tail sleeve is connected to the shell, the diameter of the driving part is contracted, and other structures can also be adopted.

The rear end of the shell is provided with an external thread, the tail sleeve is provided with a corresponding internal thread, and the shell is in threaded connection with the tail sleeve. Of course, the shell and the tail sleeve can be connected in a buckling mode and the like.

Furthermore, the wire clamp also comprises a connector for connecting the wire, wherein the connector is arranged in the shell and is positioned on the front side of the wire clamp.

The joint comprises a crystal head for connecting a network cable.

Compared with the prior art, the utility model has the advantages of: the body is provided with the groove, the protrusion is formed between the groove and the body, the sealing sleeve is provided with the convex part, and the sealing sleeve is pressed against the convex part on the sealing sleeve under the action of the tightening clamping jaw, so that the groove on the body is pressed against the convex part on the sealing sleeve, and meanwhile, the protrusion on the body is pressed against the end face corresponding to the sealing sleeve, at least two sealing is realized, and the sealing performance is improved; just the utility model discloses simple structure only can realize that at least twice is sealed through a seal cover, and need not to increase the quantity of sealing member. The electric connector with the wire clamp assembly has better waterproof performance.

Drawings

Fig. 1 is a schematic structural diagram of an electrical connector according to an embodiment of the present invention;

fig. 2 is an exploded perspective view of an electrical connector according to an embodiment of the present invention;

fig. 3 is a partial exploded perspective view of the wire clamp assembly in an embodiment of the present invention;

fig. 4 is a cross-sectional view of the wire clamp assembly in an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, for a preferred embodiment of a wire clamp assembly and an electrical connector having the same, the electrical connector includes a housing 1, a tail sleeve 2, a wire clamp assembly and a crystal head 3.

Wherein the shell 1 is a tubular structure with openings at the front end and the rear end, and the rear end of the shell 1 is provided with an external thread 11. The tail cover 2 is connected with the rear end of the shell 1, corresponding internal threads 21 are arranged on the tail cover 2 to be in threaded connection with the shell 1, and meanwhile, the tail cover 2 is also of a structure with two ends open, hollow and communicated with the two ends, so that the power supply line 4 penetrates through the tail cover.

The crystal head 3 and the wire clamp assembly are arranged in the shell in tandem. Wherein, the fastener subassembly includes fastener 5, seal cover 6 and sealing washer 7, and fastener 5 includes that columnar body 51 and a plurality of tighten up the claw strip 52, has seted up a through-hole 53 along the axial on the body 51 middle part, and each tightens up claw strip 52 and follows the outer lane of circumference interval distribution at body 51 rear end face and axial extension, is equipped with two parallel centre gripping pieces 54 on the preceding terminal surface of body 51, and each centre gripping piece 54 is along axial extension. The sealing sleeve 6 is arranged in the inner space enclosed by the tightening claws 52, and the sealing sleeve 6 is hollow and is connected to the through hole 53 to pass the power supply line 4. When the tightening claw strips 52 are tightened, the sealing sleeve 6 can be pressed forwards, so that the sealing sleeve 6 is abutted against the rear end face of the body 51, in the embodiment, in order to improve the sealing performance between the body 51 and the sealing sleeve 6, a groove 55 is arranged on the rear end face of the body 51 along the circumferential direction, and the groove 55 is arranged to avoid the through hole 53 on the body 51, so that a protrusion 56 is formed between the groove 55 and the through hole 53 on the body 51; an outer convex part 61 matched with the groove 55 is convexly arranged on the sealing sleeve 6 along the circumferential direction, and the outer convex part 61 is inserted into the groove 55; meanwhile, a sealing ring 62 is convexly arranged on the peripheral wall of the sealing sleeve 6 along the circumferential direction, and the sealing ring 62 is arranged corresponding to the side wall of the groove 55 on the body 51; when the sealing sleeve 6 abuts against the rear end face of the body 51, three seals are formed between the external convex part 61 and the groove 55, between the protrusion 56 and the corresponding end face of the sealing sleeve 6, and between the sealing ring 62 and the groove 55 of the body 51. The groove 55 in this embodiment is only one turn, and of course, two or more turns of grooves inside and outside may be provided to achieve multiple sealing. Meanwhile, a groove body 57 is formed in the peripheral wall 51 of the body along the circumferential direction, the sealing ring 7 is sleeved on the groove body 57, and the sealing ring 7 is connected with the inner wall of the shell 1 and the peripheral wall of the body 51 in a sealing mode.

In this embodiment, to fold the tightening claw strips 52, at least the rear end portions of the tightening claw strips 52 are exposed outside the housing 1 and located in the tail sleeve 2, the corresponding inner walls of the tail sleeve 2 are tapered surfaces with the diameters gradually decreasing from front to rear, and when the tail sleeve 2 is connected to the housing 1, the tapered surfaces in the tail sleeve 2 can press the wire clamp 5 and fold the tightening claw strips 52 in a corresponding manner.

When the wire clamp is used, the tail sleeve 2 is firstly screwed off, the electric wire 4 sequentially penetrates through the tail sleeve 2 and the wire clamp assembly and then is connected with the crystal head 3, then the crystal head 3 and the wire clamp assembly are installed in the shell 1, and finally the tail sleeve 2 is screwed. Under the state of screwing up of tail cover 2, tighten up claw strip 52 and grasp electric wire 4, avoid electric wire 4 to remove, seal cover 6 parcel live electric wire 4 simultaneously and with body 51 sealing connection, play better water-proof effects.

Claims (9)

1. A wire clamp assembly comprising:

the wire clamp comprises a columnar body (51) and a plurality of tightening claw strips (52), wherein a through hole (53) is formed in the middle of the body (51) along the axial direction, and the tightening claw strips (52) are circumferentially distributed on an outer ring of the first end face of the body (51) at intervals and axially extend;

the sealing sleeve is arranged in an inner space enclosed by the tightening claw strips (52), the sealing sleeve (6) is hollow and communicated with the through hole (53) to pass through a power supply line (4); the sealing sleeve (6) is tightly propped against the body (51) when the tightening claw strips (52) are folded;

the method is characterized in that:

a groove (55) is formed in the first end face of the body (51) along the circumferential direction, and the groove (55) is arranged to avoid the through hole (53) in the body (51) so that a protrusion (56) is formed between the groove (55) and the through hole (53) in the body (51); the sealing sleeve (6) is provided with an outer convex part (61) matched with the groove (55) in a protruding mode along the circumferential direction, the outer convex part (61) is inserted into the groove (55), and then, under the condition that the tightening claw strips (52) are folded, the outer convex part (61) is in sealing fit with the groove (55) and the corresponding end faces of the protrusion (56) and the sealing sleeve (6) to form at least two sealing.

2. The wire clamp assembly of claim 1, wherein: the sealing sleeve is characterized in that a sealing ring (62) is arranged on the peripheral wall of the sealing sleeve (6) in a protruding mode along the circumferential direction, and the sealing ring (62) is arranged corresponding to the side wall of the groove (55) in the body (51) to form sealing fit.

3. The wire clamp assembly of claim 1, wherein: still including sealing washer (7), seted up cell body (57) along circumference on the periphery wall of body (51), sealing washer (7) cover is established on cell body (57).

4. The wire clamp assembly of claim 1, wherein: the second end face of the body (51) is provided with two parallel clamping sheets (54), and each clamping sheet (54) extends along the axial direction.

5. An electric connector, comprising a shell (1) and a tail sleeve (2), wherein the shell (1) is a cylindrical structure with an opening at the front end and the rear end, the tail sleeve (2) is connected with the rear end of the shell (1), the electric connector is characterized by further comprising the wire clamp assembly as claimed in any one of claims 1 to 4, the wire clamp assembly is arranged in the shell (1), the tightening claw strips (52) are opposite to the tail sleeve (2), and a component which is matched with at least the rear end part of the tightening claw strips (52) to drive the tightening claw strips (52) to be folded when the tail sleeve (2) is connected to the shell (1) is arranged on the tail sleeve (2).

6. The electrical connector of claim 5, wherein: at least the rear end part of the tightening claw strip (52) is exposed out of the shell (1) and is positioned in the tail sleeve (2), the corresponding inner wall of the tail sleeve (2) is a conical surface with the caliber gradually reduced from front to back, and the conical surface is the above-mentioned part.

7. The electrical connector of claim 5, wherein: be equipped with external screw thread (11) on the rear end of shell (1), be equipped with corresponding internal thread (21) on tail cover (2), shell (1) and tail cover threaded connection.

8. The electrical connector of claim 5, wherein: the wire clamp also comprises a joint for connecting the wire (4), wherein the joint is arranged in the shell (1) and is positioned on the front side of the wire clamp (5).

9. The electrical connector of claim 8, wherein: the joint comprises a crystal head (3) for connecting a network cable.

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