Rotation-stopping cable clamp and tail sealing assembly

Abstract

The utility model relates to the field of electric connector components, in particular to a rotation-stopping cable clamp and a tail sealing assembly. The rotation stopping cable clamp is used for solving the technical problem that an existing cable clamp cannot fix a cable in the circumferential direction. The tail sealing assembly is used for solving the technical problem that the cable on an existing connector is prone to rotation, and consequently contact between the cable and a terminal is poor. The rotation stopping cable clamp comprises an annular body, one end of the annular body is provided with an extrusion end face, the other end of the annular body is provided with a cable clamping elastic arm in an overhanging mode in the axial direction of the cable, and the cable clamping elastic arm is provided with a stress inclined face. A rotation stopping structure is arranged on the annular main body, and the rotation stopping structure is matched with a rotation stopping matching structure on a shell or a tail cover of the connector in a rotation stopping manner; one side, facing the cable, of the cable clamping elastic arm is provided with a cable biting structure. According to the structure, the cable can be prevented from rotating in the connector, and a plurality of cable cores of the cable are prevented from being twisted together, so that the cable cores of the cable and the terminals are ensured to have a reliable fixed connection relationship, and poor contact between the terminals of the connector and the cable is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of electric connector components, and particularly relates to a rotation-preventing cable clamp and a tail sealing assembly. Background Art

[0002] In the field of connectors, a tail sealing assembly is generally provided at the tail of the connector housing. The tail sealing assembly can refer to the arrangement of a tail nut, a wire clamping ring and a gasket described in the Chinese utility model patent with the authorization announcement number of CN210272774U, that is, the tail sealing assembly usually includes a sealing rubber ring for the wire, a cable clamp and a tail cover. The sealing rubber ring for the wire is sleeved on the cable of the connector and the outer peripheral surface thereof abuts against the inner wall of the connector housing to achieve the seal between the connector housing and the cable. One end of the cable clamp is provided with an annular main body for axially pressing the sealing rubber ring for the wire along the cable, and a through hole is provided in the center of the annular main body so that the cable clamp can be sleeved on the cable. A wire clamping spring arm for clamping the cable is arranged on the side of the annular main body facing away from the sealing rubber ring for the wire, and a force-bearing inclined surface for driving and cooperating with the tail cover is arranged at the end of the wire clamping spring arm. The tail cover is sleeved on the cable and is generally installed on the outer surface of the tail of the connector housing through threaded connection. A force-applying inclined surface is arranged on the inner side of the tail cover, and the force-applying inclined surface is in close fit with the force-bearing inclined surface of the cable clamp. During installation, by rotating the tail cover, the tail cover can move axially along the cable, and then the force-applying inclined surface presses the force-bearing inclined surface of the cable clamp. Under the guidance and transmission of the two inclined surfaces, on the one hand, the cable clamp moves forward axially along the cable to press the sealing rubber ring for the wire to achieve the seal; on the other hand, the wire clamping spring arm of the cable clamp clamps the cable radially to achieve the radial and axial fixation of the cable. However, such a setting cannot achieve the circumferential fixation of the cable, and there is still a risk that the cable rotates in the connector housing. During specific use, the cable may rotate in the connector housing together with the cable clamp. For a multi-channel connector using a multi-core cable, since its multiple wire cores are respectively fixedly connected to the terminals fixed in the connector, once the cable rotates, the multiple wire cores will be twisted together accordingly. This is likely to damage the fixed connection relationship between the wire core and the terminal, and in severe cases, it may even cause poor contact between the terminal and the cable, affecting the normal use of the connector. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a rotation-preventing cable clamp to solve the technical problem that the existing cable clamp cannot circumferentially fix the cable. The purpose of the utility model is to provide a tail sealing assembly to solve the technical problem that the cable on the existing connector is prone to rotation, thereby causing poor contact between the cable and the terminal.

[0004] The utility model adopts the following technical solutions:

[0005] A rotation - preventing cable clamp includes an annular body. One end of the annular body along the axial direction of the cable has an extrusion end face for extruding a sealing rubber ring, and the other end extends axially along the cable with a wire - clamping elastic arm. A force - receiving inclined surface is arranged on the wire - clamping elastic arm; a rotation - preventing structure is arranged on the annular body, and the rotation - preventing structure is used for rotation - preventing cooperation with a rotation - preventing cooperation structure on the housing or the tail cover of the connector; a wire - biting structure is arranged on the side of the wire - clamping elastic arm facing the cable.

[0006] Further, the extrusion end face is the end face of the annular body, and the rotation - preventing structure is arranged on the outer peripheral surface of the annular body.

[0007] Further, the rotation - preventing structure is a rotation - preventing key extending radially outward along the cable, and the rotation - preventing key is used for key - slot cooperation with a rotation - preventing groove on the housing or the tail cover of the connector as a rotation - preventing cooperation structure.

[0008] Further, the wire - biting structure is a wire - clamping pressing platform protruding towards the cable.

[0009] Further, the wire - clamping pressing platform is a frustum - shaped structure.

[0010] Further, one of the frustum - shaped inclined surfaces of the frustum - shaped structure is arranged towards the end of the wire - clamping elastic arm.

[0011] Further, the wire - clamping pressing platform is a quadrangular frustum - shaped structure, and the frustum - shaped inclined surfaces of the quadrangular frustum arranged along the width direction of the wire - clamping elastic arm are coplanar with the side surfaces of the wire - clamping elastic arm along the width direction respectively.

[0012] Further, the rotation - preventing structures are arranged in groups along the circumferential direction of the annular body.

[0013] Further, the rotation - preventing structures are evenly arranged along the circumferential direction of the annular body.

[0014] Beneficial effects: The present utility model improves the existing cable clamp and specifically provides a non-rotating cable clamp. The non-rotating cable clamp of the present utility model includes an annular main body. One end of the annular main body along the axial direction of the cable has an extrusion end face for extruding the sealing rubber ring, and the other end extends axially along the cable with a clamping elastic arm. A force-receiving inclined surface is provided on the clamping elastic arm. A non-rotating structure is provided on the annular main body, and the non-rotating structure is used for non-rotating cooperation with the non-rotating cooperation structure on the housing or the end cap of the connector, so that the non-rotating cable clamp cannot rotate relative to the housing of the connector after being installed in place. A wire-biting structure is provided on the side of the clamping elastic arm facing the cable, and the wire-biting structure can ensure that there is sufficient clamping force between the clamping elastic arm and the cable to prevent the cable from rotating relative to the non-rotating cable clamp. Since the end cap is usually stationary after being installed on the housing of the connector, the above structure can effectively avoid the rotation of the cable in the connector, thereby preventing the multiple cores of the cable from being twisted together due to the influence of the cable rotation, ensuring a reliable fixed connection relationship between the cores of the cable and the terminals, and avoiding poor contact between the terminals of the connector and the cable.

[0015] A tail sealing assembly includes a sealing rubber ring, a non-rotating cable clamp, and an end cap; the end cap and the non-rotating cable clamp are wedge-tightly fitted through an inclined surface, and one end of the non-rotating cable clamp presses against the sealing rubber ring. The non-rotating cable clamp includes an annular main body. One end of the annular main body along the axial direction of the cable has an extrusion end face for extruding the sealing rubber ring, and the other end extends axially along the cable with a clamping elastic arm. A force-receiving inclined surface is provided on the clamping elastic arm; a non-rotating structure is provided on the annular main body, and the non-rotating structure is used for non-rotating cooperation with the non-rotating cooperation structure on the housing or the end cap of the connector; a wire-biting structure is provided on the side of the clamping elastic arm facing the cable.

[0016] Further, a snap structure is provided on the end cap, and the snap structure is used for snap-fitting with the snap-fitting structure of the housing of the connector.

[0017] Further, the extrusion end face is the end face of the annular main body, and the non-rotating structure is provided on the outer peripheral surface of the annular main body.

[0018] Further, the non-rotating structure is a non-rotating key extending radially outward along the cable, and the non-rotating key is used for keyway fitting with the non-rotating groove serving as the non-rotating cooperation structure on the housing or the end cap of the connector.

[0019] Further, the wire-biting structure is a clamping and pressing platform protruding towards the cable.

[0020] Further, the clamping and pressing platform is a frustum structure.

[0021] Further, one of the frustum inclined surfaces of the frustum structure is arranged towards the end of the clamping elastic arm.

[0022] Further, the wire clamping and pressing platform is a quadrangular pyramid platform structure, and the pyramid inclined planes of the quadrangular pyramid platform arranged along the width direction of the wire clamping elastic arm are coplanar with the side surfaces along the width direction of the wire clamping elastic arm respectively.

[0023] Further, the anti-rotation structure is arranged on the annular main body in groups along the circumferential direction of the annular main body.

[0024] Further, the anti-rotation structures are uniformly arranged along the circumferential direction of the annular main body.

[0025] Beneficial effects: The utility model improves the existing tail sealing assembly of the connector, and specifically provides a tail sealing assembly capable of preventing the cable from rotating. The tail sealing assembly of the utility model comprises a sealing rubber ring for wires, an anti-rotation cable clamp and a tail cover. The tail cover and the anti-rotation cable clamp are in wedge-tight fit through an inclined plane. One end of the anti-rotation cable clamp abuts against the sealing rubber ring for wires. The anti-rotation cable clamp comprises an annular main body. One end of the annular main body along the axial direction of the cable has an extrusion end face for extruding the sealing rubber ring for wires, and the other end extends axially along the cable with a wire clamping elastic arm. A force-bearing inclined plane is arranged on the wire clamping elastic arm. An anti-rotation structure is arranged on the annular main body and is used for anti-rotation cooperation with an anti-rotation cooperation structure on the shell or the tail cover of the connector, so that the anti-rotation cable clamp cannot rotate relative to the shell of the connector after being installed in place. A wire biting structure is arranged on the side of the wire clamping elastic arm facing the cable. The wire biting structure can ensure that there is sufficient clamping force between the wire clamping elastic arm and the cable to prevent the cable from rotating relative to the anti-rotation cable clamp. Since the tail cover is usually stationary after being installed on the shell of the connector, the above structure can effectively avoid the rotation of the cable in the connector, thereby preventing the multiple cores of the cable from being twisted together due to the influence of the cable rotation, ensuring a reliable fixed connection relationship between the cores of the cable and the terminals, and avoiding the occurrence of poor contact between the terminals of the connector and the cable. Description of the Drawings

[0026] Figure 1 is a sectional view of the tail sealing assembly of the utility model when installed on the connector;

[0027] Figure 2 is Figure 1 an external view of the anti-rotation cable clamp outside the axis;

[0028] Figure 3 is Figure 2 an external view of the anti-rotation cable clamp outside the axis in another direction;

[0029] Figure 4 is Figure 2 a sectional view taken along the central plane of the anti-rotation cable clamp;

[0030] Figure 5 is Figure 1 an external view of the sealing rubber ring for wires in;

[0031] Figure 6 is Figure 1 the external view of the shaft of the middle tail cover;

[0032] Figure 7 is Figure 1 the assembly schematic diagram during the assembly of the anti-rotation cable clamp;

[0033] Figure 8 is Figure 7 the structural schematic diagram after the anti-rotation cable clamp is assembled in place;

[0034] Figure 9 is Figure 1 the assembly schematic diagram during the assembly of the middle tail cover;

[0035] Figure 10 is Figure 9 the structural schematic diagram after the middle tail cover is assembled in place;

[0036] The names of the components corresponding to the corresponding reference numerals in the figure are: 1. sealing rubber ring; 2. anti-rotation cable clamp; 3. tail cover; 4. annular main body; 5. annular hole; 6. wire clamping elastic arm; 7. force-bearing inclined surface; 8. force-applying inclined surface; 9. housing; 10. cable; 11. anti-rotation key; 12. anti-rotation groove; 13. wire clamping pressing table; 14. buckle structure; 15. buckle matching structure; 16. through hole; 17. annular rib; 18. extrusion end face. Specific Embodiments

[0037] The features and performance of the present utility model will be further described in detail below in conjunction with embodiments.

[0038] The scheme principle of the tail sealing assembly of the present utility model is as follows:

[0039] A tail sealing assembly includes a sealing rubber ring, an anti-rotation cable clamp, and a tail cover. The tail cover and the anti-rotation cable clamp are wedge-tightly matched through inclined surfaces. The anti-rotation cable clamp includes an annular main body. One end of the annular main body along the axial direction of the cable has an extrusion end face for extruding the sealing rubber ring 1 to tightly squeeze the sealing rubber ring. The other end extends axially along the cable and has a wire clamping elastic arm. A force-bearing inclined surface for wedge-tightly matching with the force-applying inclined surface on the tail cover is provided on the wire clamping elastic arm. An anti-rotation structure is provided on the annular main body. The anti-rotation structure is used for anti-rotation matching with the housing of the connector or the anti-rotation matching structure on the tail cover, so that the anti-rotation cable clamp cannot rotate relative to the housing of the connector after being installed in place. A wire biting structure is provided on the side of the end of the wire clamping elastic arm facing the cable. After the anti-rotation cable clamp clamps the cable, the wire biting structure can ensure that there is sufficient clamping force between the wire clamping elastic arm and the cable to prevent the cable from rotating relative to the anti-rotation cable clamp.

[0040] Since the tail cover is usually stationary after being installed on the housing of the connector, the above structure can effectively prevent the cable from rotating in the connector, thereby preventing multiple cores of the cable from being twisted together due to the rotation of the cable, ensuring a reliable fixed connection relationship between the cores of the cable and the terminals, and avoiding poor contact between the terminals of the connector and the cable.

[0041] Embodiment of the tail sealing assembly of the present utility model:

[0042] A tail sealing assembly, the structure of which can be referred to Figure 1 as shown, including a cable sealing rubber ring 1, a rotation prevention cable clamp 2 and a tail cover 3. The tail sealing assembly in this embodiment is generally used to fix the cable 10 on the connector and seal between the cable 10 and the housing 9 of the connector. Specifically, as can be referred to Figures 7 - 10 shown, during installation, the cable sealing rubber ring 1, the rotation prevention cable clamp 2 and the tail cover 3 are all sleeved on the cable 10 of the connector in sequence. After the cable 10 is installed in place, the cable sealing rubber ring 1 is inserted and tightened in the circumferential gap between the cable 10 and the housing 9 of the connector to achieve the seal between the cable 10 and the housing 9 of the connector. The structure of the rotation prevention cable clamp 2 can be referred to Figures 2 - 4 as shown, including an annular main body 4. The annular main body 4 is sleeved on the cable 10 through a ring hole 5. One end of it along the axial direction of the cable 10 has an extrusion end face 18 for extruding the cable sealing rubber ring 1, and on the other side, there is a cable clamping elastic arm 6 for clamping the cable 10. The end of the cable clamping elastic arm 6 is provided with a force receiving inclined surface 7 for transmission cooperation with the tail cover 3. The tail cover 3 is sleeved on the cable 10 so as to be axially installed at the tail end of the housing 9 of the connector along the cable 10. An acting inclined surface 8 is arranged inside the tail cover 3, and the acting inclined surface 8 is in wedge-shaped tight fit with the force receiving inclined surface 7 of the rotation prevention cable clamp 2. During installation, by moving the tail cover 3, the acting inclined surface 8 of the tail cover 3 can extrude the force receiving inclined surface 7 of the rotation prevention cable clamp 2. Under the guidance and transmission of the two inclined surfaces, on the one hand, the rotation prevention cable clamp 2 moves forward along the axial direction of the cable 10 to press the cable sealing rubber ring 1 to achieve sealing; on the other hand, the cable clamping elastic arm 6 of the rotation prevention cable clamp 2 clamps the cable 10 radially to achieve the radial and axial fixation of the cable 10.

[0043] A rotation prevention structure is arranged on the aforementioned annular main body 4, and a rotation prevention cooperation structure is correspondingly arranged on the housing 9 or the tail cover 3 of the connector. The rotation prevention structure and the rotation prevention cooperation structure are rotationally prevented from cooperating with each other so that the rotation prevention cable clamp 2 cannot rotate relative to the housing 9 of the connector after being installed in place. A wire biting structure is arranged on the side of the end of the cable clamping elastic arm 6 facing the cable 10. After the rotation prevention cable clamp 2 clamps the cable 10, the wire biting structure tightly presses against the outermost layer of the cable 10 to ensure that there is sufficient clamping force between the cable clamping elastic arm 6 and the cable 10 and prevent the cable 10 from rotating relative to the rotation prevention cable clamp 2.

[0044] The key point of this embodiment is that reference can be made to Figure 2 , Figure 3 As shown, the extrusion end face 18 is the end face of the annular main body 4, and the anti-rotation structure is arranged on the outer peripheral surface of the annular main body 4. Such a setting has a simple structure and is easy to process and form. Of course, in other embodiments, an extrusion boss can also be arranged on the side of the annular main body 4 facing away from the wire clamping spring arm 6, and the end face of the extrusion boss facing away from the wire clamping spring arm 6 is used as the extrusion end face 18. On this basis, the anti-rotation structure is arranged on the radially outer side of the extrusion end face 18 to avoid interfering with the extrusion of the sealing rubber ring 1 by the anti-rotation wire clamping clip 2.

[0045] The anti-rotation structure is an anti-rotation key 11 extending radially outward along the cable 10. Correspondingly, an anti-rotation groove 12 as an anti-rotation matching structure is arranged on the housing 9 or the end cap 3 of the connector. In this embodiment, the anti-rotation groove 12 is opened at the tail of the connector housing 9. The anti-rotation key 11 extends out from the outer peripheral edge of the annular main body 4 along the radial direction of the cable 10. During installation, the anti-rotation key 11 is inserted into the anti-rotation groove 12 from the opening, and the two side walls of the anti-rotation key 11 are respectively blocked by the two groove walls of the anti-rotation groove 12 to realize the anti-rotation of the anti-rotation wire clamping clip 2 relative to the end cap 3 and the connector housing 9. Such a key-groove matching setting is simple to process and convenient for installation, and the anti-rotation effect is reliable and not easy to fail. In other embodiments, the anti-rotation structure can also be a stop block or a baffle on the side of the annular main body 4 facing away from the sealing rubber ring 1. The stop block extends radially along the cable 10 and its end is exposed outside the outer peripheral edge of the annular main body 4 for blocking and matching with the anti-rotation groove 12 on the connector housing 9. The anti-rotation structure can also be a notch arranged on the annular main body 4. Correspondingly, the anti-rotation matching structure is a protrusion arranged on the connector. In other embodiments, the anti-rotation groove 12 is opened on the side of the connector end cap 3 facing the connector housing 9. The anti-rotation key 11 extends out from the outer peripheral edge of the annular main body 4 along the radial direction of the cable 10. During installation, the anti-rotation key 11 is inserted into the anti-rotation groove 12 from the opening, and the two side walls of the anti-rotation key 11 are respectively blocked by the two groove walls of the anti-rotation groove 12 to realize the anti-rotation of the anti-rotation wire clamping clip 2 relative to the end cap 3 and the connector housing 9.

[0046] Reference can be made to Figure 4As shown, the aforementioned wire-biting structure is preferably a wire-clamping pressing platform 13 protruding towards the wire 10. In this way, when the wire-clamping elastic arm 6 of the anti-rotation wire clamp 2 clamps the wire 10, the wire-clamping pressing platform 13 can squeeze the outer skin of the anti-rotation wire clamp 2 as much as possible to enhance the frictional resistance between the anti-rotation wire clamp 2 and the wire 10 and prevent the wire 10 from rotating relative to the anti-rotation wire clamp 2. Of course, the wire-biting structure can also be a convex bump or a continuously extending convex tooth or convex ridge with a sharp corner on the side of the end of the wire-clamping elastic arm 6 facing the wire 10. The wire-clamping pressing platform 13 is preferably a frustum structure. The frustum structure can reduce the contact area between the wire-clamping pressing platform 13 and the wire 10 and increase the pressure exerted by the wire-clamping pressing platform 13 on the wire 10 under the condition that the clamping force remains unchanged. In this way, the outer skin of the wire 10 can be greatly deformed, and there is a certain blocking effect between the outer skin of the wire 10 and the wire-clamping pressing platform 13. At the same time, since the surface of the frustum in contact with the wire 10 is a straight surface or an arc surface close to the straight surface and adapted to the wire 10, the frustum is not likely to squeeze and damage the outer skin of the wire 10. In other embodiments, the wire-clamping pressing platform 13 can also be a circular frustum or a similar structure with a contour close to that of a circular frustum.

[0047] One of the frustum inclined surfaces of the aforementioned frustum structure is arranged towards the end of the wire-clamping elastic arm 6. In this way, this frustum inclined surface can be used as a guiding inclined surface to facilitate the threading of the wire 10. During installation, the wire 10 can be inserted into the anti-rotation wire clamp 2 from a larger range of spatial positions, which greatly facilitates the installation of the tail sealing assembly and thus improves the production and assembly efficiency of the connector using the tail sealing assembly. In other embodiments, one of the frustum edges of the frustum structure can also be arranged towards the end of the wire-clamping elastic arm 6.

[0048] The wire-clamping pressing platform 13 is preferably a quadrangular frustum structure, and the frustum inclined surfaces of the quadrangular frustum arranged along the width direction of the wire-clamping elastic arm 6 are coplanar with the side surfaces of the wire-clamping elastic arm 6 along the width direction respectively. In this way, during processing, the two side walls of the wire-clamping pressing platform 13 along the width direction of the wire-clamping elastic arm 6 can be integrally processed with the two side walls of the wire-clamping elastic arm 6 in the corresponding direction, thereby effectively improving the processing efficiency of the anti-rotation wire clamp 2 and reducing the processing cost at the same time. In other embodiments, the frustum inclined surfaces of the wire-clamping pressing platform 13 arranged along the width direction of the wire-clamping elastic arm 6 can also be lower than the side surfaces of the wire-clamping elastic arm 6 along the width direction. During processing, the wire-clamping pressing platform 13 can be separately processed and formed on the basis of the wire-clamping elastic arm 6.

[0049] As described above, the anti-rotation structures are arranged in groups along the circumferential direction of the annular body 4 on the annular body 4. This increases the anti-blocking cooperation positions between the anti-rotation cable clamp 2 and the end cap 3 or the housing 9 of the connector, and reduces the force on a single anti-blocking cooperation position. Therefore, on the one hand, the above structure improves the anti-rotation effect of the anti-rotation cable clamp 2 with the end cap 3 or the housing 9 of the connector, and on the other hand, it also improves the reliability of the anti-rotation structure for anti-rotation. The anti-rotation structures are preferably arranged evenly along the circumferential direction of the annular body 4 so as to align all the anti-rotation structures during installation and at the same time facilitate the positioning of the processing positions of the anti-rotation structures during processing. In this embodiment, two anti-rotation structures are provided on the annular body 4, and the two anti-rotation structures are arranged with a 180-degree interval therebetween. In other embodiments, three anti-rotation structures may also be provided on the annular body 4, and the three anti-rotation structures are arranged with a 120-degree interval therebetween. Or four anti-rotation structures may also be provided on the annular body 4, and the four anti-rotation structures are arranged with a 90-degree interval therebetween. The number of anti-rotation structures provided on the annular body 4 may also be other numbers, and the specific number depends on the actual anti-rotation requirements, so it will not be elaborated here. Of course, the anti-rotation structures located on the annular body 4 may also be unevenly arranged. For example, when only two anti-rotation structures are provided on the annular body 4, the two anti-rotation structures may also be spaced at angles such as 90 degrees, 120 degrees, 150 degrees, etc. In addition, only one anti-rotation structure may also be provided on the annular body 4.

[0050] The structure of the aforementioned end cap 3 can be referred to Figure 6 as shown, and a snap structure 14 may be provided thereon so as to be installed at the tail end of the housing 9 of the connector by means of snap-fitting. Specifically, a snap structure 14 is provided on the end cap 3, and the snap structure 14 may be a snap groove or a snap claw. A snap-fit structure 15 for cooperating with the snap structure 14 is provided on the corresponding housing 9 of the connector. The snap-fit structure 15 may be a snap claw adapted to the snap groove or a snap groove adapted to the snap claw. In this way, on the one hand, the processing and installation of the end cap 3 are simplified, and on the other hand, when the end cap 3 is installed, the end cap 3 can be directly installed on the housing 9 of the connector along the axis of the cable 10 to avoid the end cap 3 rotating during the installation process. Of course, in other embodiments, a staple may also be provided on the end cap 3, and a curved groove adapted to the staple is provided on the housing 9 of the connector; or a curved groove may be provided on the end cap 3, and a staple is provided on the housing 9 of the connector. Through the cooperation of the staple and the curved groove, the end cap 3 can be fixedly installed at the tail end of the housing 9 of the connector. Or an internal thread may also be provided on the end cap 3, and an external thread is provided on the housing 9 of the connector so that the end cap 3 is installed on the housing 9 of the connector through thread cooperation.

[0051] The aforementioned sealing rubber ring 1 can be referred to Figure 5As shown, a plunger-like structure is preferably adopted, and a through hole 16 for the cable 10 to pass through is left at its center. Annular ribs 17 are provided on the outer peripheral surface of the cable sealing rubber ring 1 and the hole wall of the through hole 16 to improve the sealing effect between the cable sealing rubber ring 1 and the connector housing 9, and between the cable sealing rubber ring 1 and the cable 10.

[0052] Embodiment of the anti-rotation cable clamp of the present invention:

[0053] The embodiment of the anti-rotation cable clamp of the present invention is the same as the anti-rotation cable clamp 2 in the solution principle and embodiment of the tail sealing assembly of the present invention, and will not be described in detail here.

[0054] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should be included in the protection scope of the present invention by the same token.

Claims

1. A cable clamp having a non-rotating structure, comprising an annular body (4), one end of the annular body (4) along the axial direction of the cable (10) having an extrusion end surface (18) for extruding a cable sealing rubber ring (1), and the other end of the annular body (4) having a wire clamping elastic arm (6) cantilevered along the axial direction of the cable (10), and a force-bearing inclined surface (7) being arranged on the wire clamping elastic arm (6); characterized in that: The annular body (4) is provided with a rotation-stopping structure, which is used to engage in rotation-stopping cooperation with a rotation-stopping cooperation structure on a housing (9) or a tail cover (3) of the connector; and the wire clamping elastic arm (6) is provided with a wire biting structure on the side facing the cable (10).

2. The anti-rotation cable clamp according to claim 1, characterized in that: The extrusion end face (18) is the end face of the annular body (4), and the anti-rotation structure is arranged on the outer peripheral surface of the annular body (4).

3. The anti-rotation cable clamp according to claim 2, characterized in that: The anti-rotation structure is an anti-rotation key (11) extending radially outward along the cable (10), and the anti-rotation key (11) is used to cooperate with a keyway of an anti-rotation groove (12) serving as an anti-rotation matching structure on a housing (9) or a tail cover (3) of the connector.

4. The anti-rotation cable clamp according to any one of claims 1 to 3, characterized in that: The wire biting structure is a wire clamping platform (13) protruding toward the cable (10).

5. The anti-rotation cable clamp according to claim 4, characterized in that: The wire clamping platform (13) is a frustum structure.

6. The anti-rotation cable clamp according to claim 5, characterized in that: One of the frustum slopes of the frustum structure is arranged toward the end of the wire clamping elastic arm (6).

7. The anti-rotation cable clamp according to claim 6, characterized in that: The wire clamping platform (13) is a four-sided frustum structure, and the frustum slopes of the four-sided frustum arranged along the width direction of the wire clamping elastic arm (6) are respectively coplanar with the side surfaces of the wire clamping elastic arm (6) along the width direction.

8. The anti-rotation cable clamp according to any one of claims 1 to 3, characterized in that: The anti-rotation structures are arranged in groups on the annular body (4) along the circumference of the annular body (4).

9. The anti-rotation cable clamp according to claim 8, characterized in that: The anti-rotation structures are evenly arranged along the circumference of the annular body (4).

10. A tail sealing assembly, comprising a sealing rubber ring (1), a cable stopper (2) and a tail cover (3); the tail cover (3) and the cable stopper (2) are tightly matched by an inclined wedge, and one end of the cable stopper (2) presses against the sealing rubber ring (1); the characteristics are as follows: The anti-rotation cable clamp (2) is the anti-rotation cable clamp (2) according to any one of claims 1 to 9.

11. The tail seal assembly according to claim 10, characterized in that: The tail cover (3) is provided with a snap-fit ​​structure (14), and the snap-fit ​​structure (14) is used for snap-fitting with a snap-fitting structure (15) of a housing (9) of the connector.

Images