CN110649422B - Waterproof cable joint and engineering machinery waterproof wire harness - Google Patents
Waterproof cable joint and engineering machinery waterproof wire harness Download PDFInfo
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- CN110649422B CN110649422B CN201910896663.9A CN201910896663A CN110649422B CN 110649422 B CN110649422 B CN 110649422B CN 201910896663 A CN201910896663 A CN 201910896663A CN 110649422 B CN110649422 B CN 110649422B
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- elastic component
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- joint
- taper hole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
- H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
Abstract
The invention provides a waterproof cable joint, because the first elastic component and the second elastic component both comprise a first sealing part and a second sealing part, the first sealing part and the second sealing part are alternately arranged along the axial direction of the first elastic component and the second elastic component, and the softness of the first sealing part is different from that of the second sealing part, therefore, the deformation of the first sealing part is different from that of the second sealing part, which is equivalent to arranging a plurality of sealing rings between the joint body and the first cable and the second cable, thereby better filling the gaps between the first elastic component and the first cable passing through the first elastic component and between the second elastic component and the second cable passing through the second elastic component, achieving better sealing effect, preventing water from permeating into the cable joint, and improving the waterproof performance or the sealing performance of the cable joint, and the setting is simpler. The invention further provides a waterproof wiring harness of engineering machinery, which comprises the waterproof cable joint.
Description
Technical Field
The invention relates to the technical field of engineering machinery wiring harnesses, in particular to a waterproof cable joint and an engineering machinery waterproof wiring harness comprising the same.
Background
In the prior art, the waterproof wire harness of the engineering machinery is required to be used in the engineering machinery to ensure the waterproofness of the wire harness, and the wire harness is easily damped in the running process of the engineering machinery due to the influence of the environment or the steam generated by the wire harness, so that the wire harness is easily damped at a cable joint, the engineering machinery is enabled to break down, even an electric shock phenomenon occurs, and the life safety of personnel is endangered.
The cable connector is also called a cable head. After the cable is laid, the sections of the cable must be connected together in order to form a continuous line, and these connections are called cable connectors. The cable joints at the middle of the cable run are called intermediate joints and the cable joints at the two ends of the run are called termination joints. The cable joint is used for locking and fixing the incoming and outgoing lines, and plays a role in water resistance, dust prevention and vibration prevention.
When the cable joint is used, the incoming cable and the outgoing cable are inserted into the cable joint, and the two cables are connected. The main function of the cable joint comprises that a circuit is unobstructed, the cable is kept sealed, if the sealing is poor, moisture can invade the interior of the cable, and the waterproof performance of the cable joint of the existing engineering machinery waterproof wire harness is required to be further improved.
Disclosure of Invention
In order to improve or solve at least one technical problem of the background art, an object of the present invention is to provide a waterproof cable joint to improve or improve waterproof performance or sealability of the cable joint.
The invention also aims to provide a waterproof wiring harness of engineering machinery comprising the waterproof cable joint.
In order to solve the above problems, in one aspect, the present invention provides a waterproof cable joint, including a joint body, a first elastic member, and a second elastic member, the joint body being disposed in a hollow manner, the joint body being provided with an axial through hole, the first elastic member and the second elastic member being disposed on inner walls of two ends of the axial through hole, the first elastic member and the second elastic member each including a first sealing portion and a second sealing portion, the first sealing portion and the second sealing portion being alternately disposed along an axial direction of the first elastic member and the second elastic member, and the first sealing portion and the second sealing portion having different flexibility.
As a further improvement of the waterproof cable joint, the axial through hole includes a first taper hole section and a second taper hole section at two ends and a middle cylindrical section, the diameters of the first taper hole section and the second taper hole section are both gradually reduced from one side opposite to the cylindrical section to one side close to the cylindrical section, the outer walls of the first elastic component and the second elastic component are respectively conical surfaces matched with the inner walls of the first taper hole section and the second taper hole section, and the inner walls of the first elastic component and the second elastic component are both cylindrical surfaces.
As a further improvement of the waterproof cable joint, the waterproof cable joint further includes a first union nut and a second union nut, the first union nut is in threaded connection with the outer wall of the joint body at the first taper hole section, and the first union nut abuts against the first elastic member, the first union nut is used for pressing the first elastic member to apply axial pressing force to the first elastic member, the second union nut is in threaded connection with the outer wall of the joint body at the second taper hole section, and the second union nut abuts against the second elastic member, and the second union nut is used for pressing the second elastic member to apply axial pressing force.
As a further improvement of the above-described waterproof cable joint, the first elastic member and the second elastic member are partially located outside the joint body.
As a further improvement of the waterproof cable joint, the first loose joint nut and the second loose joint nut are both made of stainless steel materials.
As a further improvement of the above waterproof cable joint, the taper of the inner walls of the first tapered hole section and the second tapered hole section is in the range of 10 to 40 °.
As a further improvement of the above waterproof cable joint, the taper of the inner walls of the first taper hole section and the second taper hole section is 20 °.
As a further improvement of the waterproof cable joint, the waterproof cable joint further comprises a sealing element, wherein an annular protrusion is arranged on the inner wall of the middle section of the joint body, the sealing element abuts against the inner wall of the annular protrusion, and the sealing element is used for sealing the abutting surfaces of the two cables inserted from the two ends of the axial through hole respectively.
As a further improvement of the waterproof cable joint, the sealing element is an annular sealing ring and is made of rubber materials.
According to the waterproof cable joint, the first elastic component and the second elastic component respectively comprise the first sealing part and the second sealing part, the first sealing part and the second sealing part are alternately arranged along the axial direction of the first elastic component and the second elastic component, and the softness of the first sealing part is different from that of the second sealing part, so that the deformation of the first sealing part is different from that of the second sealing part, namely, a plurality of sealing rings are arranged between the joint body and the first cable and the second cable, and therefore gaps between the first elastic component and the first cable penetrating through the first elastic component and gaps between the second elastic component and the second cable penetrating through the second elastic component are filled well, a good sealing effect is achieved, water is prevented from penetrating into the cable joint, and the waterproof performance or the sealing performance of the cable joint is improved, the arrangement is simple, and the effect of a plurality of sealing rings can be achieved only by arranging one first elastic component and one second elastic component.
In another aspect, the invention provides a waterproof wire harness for engineering machinery, which comprises the waterproof cable joint according to any one of the above aspects.
Since the waterproof wire harness for the engineering machinery is provided with the waterproof cable joint, the waterproof wire harness for the engineering machinery has all the technical effects of the waterproof cable joint.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of a waterproof cable joint according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a waterproof cable joint according to a second embodiment of the present invention.
Fig. 3 is a schematic structural view of a waterproof cable joint according to a third embodiment of the present invention.
In the drawings:
1-first cable 2-second cable 3-connector body
4-first elastic member 5-second elastic member 6-first seal portion
7-second sealing part 8-first union nut 9-second union nut
10-annular projection 11-seal
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
In the description of the present invention, it should be noted that the terms indicating orientation or positional relationship appearing are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, the specific meanings of the above terms in the present invention can be specifically understood by those skilled in the art.
Example one
Referring to fig. 1, the present invention provides a waterproof cable connector, including a connector body 3, a first elastic member 4, and a second elastic member 5, which are arranged in a hollow manner, wherein the connector body 3 is provided with an axial through hole, the first elastic member 4 and the second elastic member 5 are arranged on inner walls of two ends of the axial through hole, the first elastic member 4 and the second elastic member 5 both include a first sealing portion 6 and a second sealing portion 7, the first sealing portion 6 and the second sealing portion 7 are alternately arranged along an axial direction of the first elastic member 4 and the second elastic member 5, and the first sealing portion 6 and the second sealing portion 7 have different flexibility.
When in use, two cables (hereinafter referred to as a first cable 1 and a second cable 2) are respectively inserted from two ends of the axial through hole and pass through the first elastic component 4 and the second elastic component 5, because the first elastic component 4 and the second elastic component 5 both comprise a first sealing part 6 and a second sealing part 7, the first sealing part 6 and the second sealing part 7 are alternately arranged along the axial direction of the first elastic component 4 and the second elastic component 5, and the softness of the first sealing part 6 and the softness of the second sealing part 7 are different, the deformation of the first sealing part 6 and the deformation of the second sealing part 7 are different, which is equivalent to that a plurality of sealing rings are arranged between the joint body 3 and the first cable 1 and the second cable 2, so that gaps between the first elastic component 4 and the first cable 1 passing through the first elastic component 4 and between the second elastic component 5 and the second cable 2 passing through the second elastic component 5 are better filled, the better sealed effect has been reached, prevents inside water infiltration cable joint, has just also improved or improved cable joint's waterproof performance or leakproofness to the setting is comparatively simple, only needs to set up a first elastomeric element 4 and second elastomeric element 5, just can play the effect of multichannel sealing washer.
As can be seen from the above, in the waterproof cable joint according to the present invention, since the first elastic member 4 and the second elastic member 5 each include the first sealing portion 6 and the second sealing portion 7, the first sealing portion 6 and the second sealing portion 7 are alternately arranged along the axial direction of the first elastic member 4 and the second elastic member 5, and the first sealing portion 6 and the second sealing portion 7 have different flexibility, the deformation of the first sealing portion 6 and the second sealing portion 7 is different, which is equivalent to providing a plurality of sealing rings between the joint body 3 and the first cable 1 and the second cable 2, so as to better fill the gap between the first elastic member 4 and the first cable 1 passing through the first elastic member 4 and between the second elastic member 5 and the second cable 2 passing through the second elastic member 5, thereby achieving a better sealing effect, prevent inside water infiltration cable joint, also improved or improved cable joint's waterproof performance or leakproofness to it is comparatively simple to set up, only needs to set up a first elastomeric element 4 and second elastomeric element 5, just can play the effect of multichannel sealing washer.
Example two
Referring to fig. 2, the present invention provides a waterproof cable connector, including a connector body 3, a first elastic member 4, and a second elastic member 5, which are arranged in a hollow manner, wherein the connector body 3 is provided with an axial through hole, the first elastic member 4 and the second elastic member 5 are arranged on inner walls of two ends of the axial through hole, the first elastic member 4 and the second elastic member 5 both include a first sealing portion 6 and a second sealing portion 7, the first sealing portion 6 and the second sealing portion 7 are alternately arranged along an axial direction of the first elastic member 4 and the second elastic member 5, and the first sealing portion 6 and the second sealing portion 7 have different flexibility.
When in use, two cables (hereinafter referred to as a first cable 1 and a second cable 2) are respectively inserted from two ends of the axial through hole and pass through the first elastic component 4 and the second elastic component 5, because the first elastic component 4 and the second elastic component 5 both comprise a first sealing part 6 and a second sealing part 7, the first sealing part 6 and the second sealing part 7 are alternately arranged along the axial direction of the first elastic component 4 and the second elastic component 5, and the softness of the first sealing part 6 and the softness of the second sealing part 7 are different, the deformation of the first sealing part 6 and the deformation of the second sealing part 7 are different, which is equivalent to that a plurality of sealing rings are arranged between the joint body 3 and the first cable 1 and the second cable 2, so that gaps between the first elastic component 4 and the first cable 1 passing through the first elastic component 4 and between the second elastic component 5 and the second cable 2 passing through the second elastic component 5 are better filled, the better sealed effect has been reached, prevents inside water infiltration cable joint, has just also improved or improved cable joint's waterproof performance or leakproofness to the setting is comparatively simple, only needs to set up a first elastomeric element 4 and second elastomeric element 5, just can play the effect of multichannel sealing washer.
As can be seen from the above, in the waterproof cable joint according to the present invention, since the first elastic member 4 and the second elastic member 5 each include the first sealing portion 6 and the second sealing portion 7, the first sealing portion 6 and the second sealing portion 7 are alternately arranged along the axial direction of the first elastic member 4 and the second elastic member 5, and the first sealing portion 6 and the second sealing portion 7 have different flexibility, the deformation of the first sealing portion 6 and the second sealing portion 7 is different, which is equivalent to providing a plurality of sealing rings between the joint body 3 and the first cable 1 and the second cable 2, so as to better fill the gap between the first elastic member 4 and the first cable 1 passing through the first elastic member 4 and between the second elastic member 5 and the second cable 2 passing through the second elastic member 5, thereby achieving a better sealing effect, prevent inside water infiltration cable joint, also improved or improved cable joint's waterproof performance or leakproofness to it is comparatively simple to set up, only needs to set up a first elastomeric element 4 and second elastomeric element 5, just can play the effect of multichannel sealing washer.
In a preferred embodiment, the axial through hole includes a first taper hole section and a second taper hole section at two ends and a middle cylindrical section, the diameters of the first taper hole section and the second taper hole section are both gradually reduced from one side back to the cylindrical section to one side close to the cylindrical section, the outer walls of the first elastic component 4 and the second elastic component 5 are respectively conical surfaces matched with the inner walls of the first taper hole section and the second taper hole section, and the inner walls of the first elastic component 4 and the second elastic component 5 are both cylindrical surfaces.
Wherein, the connector body 3 is used for connecting the first cable 1 and the second cable 2, specifically, one end of the connector body 3 is provided with a first taper hole section for plugging the first cable 1, the other end of the connector body 3 is provided with a second taper hole section for plugging a second cable 2, the first taper hole section and the second taper hole section are mutually communicated and coaxially arranged, the inner walls of the first taper hole section and the second taper hole section are respectively provided with a first elastic part 4 and a second elastic part 5, the inner walls of the first taper hole section and the second taper hole section are conical surfaces of which the diameters are gradually reduced from one side back to the cylindrical section to one side close to the cylindrical section, the outer walls of the first elastic component 4 and the second elastic component 5 are conical surfaces matched with the inner walls of the first taper hole section and the second taper hole section respectively, and the inner walls of the first elastic component 4 and the second elastic component 5 are cylindrical surfaces.
In this embodiment, since the diameters of the first taper hole section and the second taper hole section of the connector body 3 are gradually reduced from the side facing away from the cylindrical section to the side close to the cylindrical section, the outer walls of the first elastic member 4 and the second elastic member 5 are respectively conical surfaces which are matched with the inner walls of the first taper hole section and the second taper hole section, and the inner walls of the first elastic member 4 and the second elastic member 5 are both cylindrical surfaces, when the first cable 1 and the second cable 2 are connected, the conical surfaces can press the first elastic member 4 and the second elastic member 5, so that the shapes of the first elastic member 4 and the second elastic member 5 are further changed, thereby well filling gaps between the first elastic member 4 and the first cable 1 passing through the first elastic member 4 and between the second elastic member 5 and the second cable 2 passing through the second elastic member 5, the cable joint has the advantages that a good sealing effect is achieved, water is prevented from permeating into the cable joint, and the waterproof performance or the sealing performance of the cable joint is improved.
In order to better press the first elastic component 4 and the second elastic component 5 to change the shape of the first elastic component 4 and the second elastic component 5, the joint further comprises a first union nut 8 and a second union nut 9, the first union nut 8 is in threaded connection with the outer wall of the joint body 3 at a first taper hole section, the first union nut 8 is abutted against the first elastic component 4, the first union nut 8 is used for pressing the first elastic component 4 to apply axial pressing force to the first elastic component 4, the second union nut 9 is in threaded connection with the outer wall of the joint body 3 at a second taper hole section, the second union nut 9 is abutted against the second elastic component 5, and the second union nut 9 is used for pressing the second elastic component 5 to apply axial pressing force. During the use, through wearing to establish first cable 1 in first loose joint nut 8 and setting in first elastic component 4, wear to establish second loose joint nut 9 and setting in second elastic component 5 with second cable 2, then first loose joint nut 8 and the screw in of second loose joint nut 9 connect the body 3, extrude first elastic component 4 and second elastic component 5, make the shape of first elastic component 4 and second elastic component 5 further change, better filled first elastic component 4 and from the first cable 1 that passes in first elastic component 4 and the second elastic component 5 between the second elastic component 5 and the second cable 2 that passes in the second elastic component 5, reached better sealed effect.
Preferably, the first elastic member 4 and the second elastic member 5 are partially located outside the joint body 3, and are arranged such that the first union nut 8 abuts against the first elastic member 4 to press the first elastic member 4 to apply an axial pressing force to the first elastic member 4, and the second union nut 9 abuts against the second elastic member 5 to press the second elastic member 5 to apply an axial pressing force.
It can be understood that the first and second union nuts 8 and 9 can be made of stainless steel material, which has excellent corrosion resistance and can ensure the service life of the first and second union nuts 8 and 9 when used underwater, and the joint body 3 can be made of glass fiber reinforced plastic material, which has good insulation and corrosion resistance and can improve the service life of the joint body 3.
Specifically, the conicity of the inner walls of the first taper hole section and the second taper hole section is in the range of 10-40 degrees. More specifically, the taper of the inner walls of the first taper hole section and the second taper hole section is 20 °.
Alternatively, the first elastic member 4 and the second elastic member 5 may be made of rubber materials, correspondingly, the first sealing portion 6 and the second sealing portion 7 are made of rubber materials with different softness or elasticity, and the number of the first sealing portion 6 and the second sealing portion 7 is more than two.
In summary, in the waterproof cable joint according to the present invention, since the first elastic member 4 and the second elastic member 5 each include the first sealing portion 6 and the second sealing portion 7, the first sealing portion 6 and the second sealing portion 7 are alternately arranged along the axial direction of the first elastic member 4 and the second elastic member 5, and the softness of the first sealing portion 6 is different from that of the second sealing portion 7, the deformation of the first sealing portion 6 is different from that of the second sealing portion 7, which is equivalent to providing a plurality of sealing rings between the joint body 3 and the first cable 1 and the second cable 2, so as to better fill the gaps between the first elastic member 4 and the first cable 1 passing through the first elastic member 4 and between the second elastic member 5 and the second cable 2 passing through the second elastic member 5, thereby achieving a better sealing effect and preventing water from penetrating into the cable joint, the waterproof performance or the leakproofness of cable joint have just also been improved or improved to the setting is comparatively simple, only needs to set up a first elastomeric element 4 and second elastomeric element 5, just can play the effect of multichannel sealing washer.
EXAMPLE III
In this embodiment, different from the second embodiment, please refer to fig. 3, the connector further includes a sealing member 11, an inner wall of the middle section of the connector body 3 is provided with an annular protrusion 10, the sealing member 11 abuts against the inner wall of the annular protrusion 10, and the sealing member 11 is used for sealing abutting surfaces of two cables inserted from two ends of the axial through hole respectively. In this embodiment, the sealing member 11 may seal the interface between the first cable 1 and the second cable 2, preventing water from penetrating into the interior of the cable joint. Further, the present invention forms a "double sealing" structure with the first elastic member 4 and the second elastic member 5 by the sealing member 11, the first elastic member 4 and the second elastic member 5 axially seal a gap between the first elastic member 4 and the first cable 1 passing through the first elastic member 4 and between the second elastic member 5 and the second cable 2 passing through the second elastic member 5, and the sealing member 11 radially seals an interface between the first cable 1 and the second cable 2, further preventing water from penetrating into the interior of the cable joint, thereby improving the sealing reliability of the waterproof cable joint.
Optionally, the sealing member 11 is an annular sealing ring, and the sealing member 11 may be made of a rubber material.
In summary, in the waterproof cable joint according to the present invention, since the first elastic member 4 and the second elastic member 5 each include the first sealing portion 6 and the second sealing portion 7, the first sealing portion 6 and the second sealing portion 7 are alternately arranged along the axial direction of the first elastic member 4 and the second elastic member 5, and the softness of the first sealing portion 6 is different from that of the second sealing portion 7, the deformation of the first sealing portion 6 is different from that of the second sealing portion 7, which is equivalent to providing a plurality of sealing rings between the joint body 3 and the first cable 1 and the second cable 2, so as to better fill the gaps between the first elastic member 4 and the first cable 1 passing through the first elastic member 4 and between the second elastic member 5 and the second cable 2 passing through the second elastic member 5, thereby achieving a better sealing effect and preventing water from penetrating into the cable joint, the waterproof performance or the leakproofness of cable joint have just also been improved or improved to the setting is comparatively simple, only needs to set up a first elastomeric element 4 and second elastomeric element 5, just can play the effect of multichannel sealing washer.
Example four
The invention provides a waterproof wiring harness of engineering machinery, which comprises a waterproof cable joint in the first embodiment or the second embodiment.
Since the waterproof wire harness for the engineering machinery is provided with the waterproof cable joint, the waterproof wire harness for the engineering machinery has all the technical effects of the waterproof cable joint.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A waterproof cable joint which characterized in that: the joint comprises a joint body (3), a first elastic component (4) and a second elastic component (5) which are arranged in a hollow mode, wherein an axial through hole is formed in the joint body (3), the first elastic component (4) and the second elastic component (5) are arranged on the inner walls of two ends of the axial through hole, the first elastic component (4) and the second elastic component (5) respectively comprise a first sealing part (6) and a second sealing part (7), the first sealing part (6) and the second sealing part (7) are alternately arranged in the axial direction of the first elastic component (4) and the second elastic component (5), and the softness of the first sealing part (6) is different from that of the second sealing part (7); the axial through hole comprises a first taper hole section, a second taper hole section and a middle cylindrical section, the diameters of the first taper hole section and the second taper hole section are gradually reduced from one side back to the cylindrical section to one side close to the cylindrical section, the outer walls of the first elastic part (4) and the second elastic part (5) are respectively conical surfaces matched with the inner walls of the first taper hole section and the second taper hole section, and the inner walls of the first elastic part (4) and the second elastic part (5) are cylindrical surfaces; the joint further comprises a first loose joint nut (8) and a second loose joint nut (9), the first loose joint nut (8) is in threaded connection with the outer wall of the joint body (3) at a first taper hole section, the first loose joint nut (8) is abutted with the first elastic component (4), the first loose joint nut (8) is used for pressing the first elastic component (4) to apply axial pressing force to the first elastic component (4), the second loose joint nut (9) is in threaded connection with the outer wall of the joint body (3) at a second taper hole section, the second loose joint nut (9) is abutted with the second elastic component (5), and the second loose joint nut (9) is used for pressing the second elastic component (5) to apply axial pressing force.
2. The watertight cable joint according to claim 1, wherein: the first elastic component (4) and the second elastic component (5) are partially positioned on the outer side of the joint body (3).
3. The watertight cable joint according to claim 1, wherein: the first loose joint nut (8) and the second loose joint nut (9) are both made of stainless steel materials.
4. The watertight cable joint according to claim 1, wherein: the conicity of the inner walls of the first taper hole section and the second taper hole section is in the range of 10-40 degrees.
5. The watertight cable joint according to claim 4, wherein: the conicity of the inner walls of the first taper hole section and the second taper hole section is 20 degrees.
6. The watertight cable joint according to any one of claims 1 to 5, wherein: the connector is characterized by further comprising a sealing element (11), an annular protrusion (10) is arranged on the inner wall of the middle section of the connector body (3), the sealing element (11) abuts against the inner wall of the annular protrusion (10), and the sealing element (11) is used for sealing abutting surfaces of two cables inserted from two ends of the axial through hole respectively.
7. The watertight cable joint according to claim 6, wherein: the sealing element (11) is an annular sealing ring, and the sealing element (11) is made of rubber materials.
8. The utility model provides a waterproof pencil of engineering machine tool which characterized in that: comprising a watertight cable joint according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896663.9A CN110649422B (en) | 2019-09-23 | 2019-09-23 | Waterproof cable joint and engineering machinery waterproof wire harness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896663.9A CN110649422B (en) | 2019-09-23 | 2019-09-23 | Waterproof cable joint and engineering machinery waterproof wire harness |
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| CN110649422A CN110649422A (en) | 2020-01-03 |
| CN110649422B true CN110649422B (en) | 2021-03-12 |
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| CN201910896663.9A Active CN110649422B (en) | 2019-09-23 | 2019-09-23 | Waterproof cable joint and engineering machinery waterproof wire harness |
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| IT1228468B (en) * | 1989-01-16 | 1991-06-19 | Pirelli Cavi Spa | ELEMENT OF A DEVICE FOR MAKING AN ELECTRIC CABLES JOINT, ELECTRIC CABLES JOINT WITH IT OBTAINED AND COATING OF THE CONNECTION OF ELECTRIC CABLES CONDUCTORS FOR THAT JOINT. |
| CN201303243Y (en) * | 2008-11-07 | 2009-09-02 | 长沙长缆电缆附件有限公司 | Plug-in reducing cable butting connector for high-voltage power cable |
| CN203871832U (en) * | 2014-06-13 | 2014-10-08 | 国网四川省电力公司双流县供电分公司 | Combined premade center connector |
| CN108899692A (en) * | 2018-08-28 | 2018-11-27 | 深圳市威顺源精密电子有限公司 | A kind of Combined signal water-proof connector |
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2019
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| CN110649422A (en) | 2020-01-03 |
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