JP3161329U - Waterproof ring and cable fixing head - Google Patents

Abstract

A waterproof ring and a cable fixing head for a power cable and the like are provided. The waterproof ring has a first end face and a second end face, a plurality of waterproof protrusions on the first end face, and a raised waterproof protrusion having a raised shape on the second end face. 121, the cable head includes a connection ring, and the connection ring further includes a locking stage 244 and a first connection stage 242 extending axially from the locking stage. The first connection step has a first external thread 245 at the top, and has an engagement surface 246 on the locking step, and the engagement surface has a localization that prevents the localization waterproof protrusion from being localized and loosened. A concave groove 248 is included. Accordingly, the waterproof ring is positioned on the first connection stage of the cable fixing head 20, and selectively engages on the engagement surface with the waterproof convex edge or the fixed waterproof convex portion, so that the cable circumscribes the cable. Further coupling to the housing 96 increases the waterproofing effect. [Selection] Figure 10

Description

The present invention relates to a waterproof ring and a cable fixing head.

The power cable is easily expanded and contracted by an external force, and is easily displaced between the waterproof ring and the box at the connection position of the fixed head, so that a situation where water is immersed in the box occurs.

  The waterproof ring employed in the conventional structure is usually a hollow O-shaped rubber ring or rubber pad, and the conventional rubber ring or rubber pad is coupled between the cable fixing head and the signal output device or signal receiving device (housing or substrate). However, the degree of tight joint is not good, there is a situation where it is stretched, crushed and deformed, and the problem of insufficient waterproofness is likely to occur.

  In the above conventional structure, a rubber ring is used and the object is sandwiched between the substrate and the fixed head. The end surface where the substrate engages with the rubber ring is a flat surface, and the end surface where the fixed head engages with the rubber ring. When the fine particles of dust are sprayed on the rubber ring and the plane of the substrate, fine water droplets can reach several million per square centimeter, so the conventional rubber ring is combined with the fixed head on the substrate. When fixed, the water droplet molecular particles tend to cause erosion hazard inside the substrate.

  In the conventional waterproof ring, the most commonly seen hollow piece-shaped rubber ring or thick rubber ring is in the middle of coupling to the cable fixing head, one end is locked to the locking surface, and the other end is fixed as described above. The head is fixed according to the connection of the waterproof ring and the substrate, and the conventional fixed head has a concave groove and does not perform localization or detachment prevention together with the waterproof ring. Inserting and rotating too much, the pressure applied to the waterproof ring exceeds the threshold, the waterproof ring is deformed, slips out of the fixed position, and flooding occurs.

  In addition, in the above-described conventional waterproof ring assembly process, the above-described fixed head structure often falls inadvertently when the outer lid is not coupled or when the user moves around with the user. This is inconvenient for the user and adversely affects work efficiency.

Japanese Patent Laid-Open No. 2003-7116

  An object of the present invention is to provide a waterproof ring, and when dust particles are sprayed on the engaging surface of the locking step, the waterproof convex edge of the waterproof ring avoids the gap between the dust particles and enhances the waterproof effect. Or, when dust particles are sprayed on the waterproof ring and the substrate wall surface, the waterproof convex edge of the waterproof ring avoids the gaps between the dust particles and can enhance the waterproof effect. is there.

  Another object of the present invention is to provide a waterproof structure that combines a waterproof ring with a cable fixing head to provide special positioning and prevention of loosening, and when the user puts too much force, the fixing head is rotated and connected. When the waterproof ring is packed and the receiving force of the waterproof ring exceeds the threshold, the waterproof ring can rotate in the stereotactic groove of the fixed head and is not clogged. It is to be able to prevent defects that are deformed and flooded.

  In order to achieve the above object, a waterproof ring and a cable fixing head provided by the present invention include a waterproof ring, and the waterproof ring is a ring body. The first end surface and the back surface of the first end surface along the axial direction thereof. A stereotaxic waterproof protrusion that divides the second end face located at the position and has an annular shape on the first end face, and has a plurality of waterproof convex edges that are arranged in a concentric manner, and protrudes circularly on the second end face Protruding part.

The waterproof ring couples a cable fixing head, and the cable fixing head includes a connection ring and an outer lid. The connection ring further includes a locking stage and a first connection stage extending axially from the locking stage. And having a first external thread on the first connection step and an engagement surface on the locking step.
The waterproof ring is covered on the first connection step of the cable fixing head, and is engaged with the engagement surface by the waterproof convex edge or the stereotactic waterproof convex portion.

The present invention has the following features.
(1) A waterproof ring is included, the waterproof ring is a ring body, and the first end face and the second end face located on the back face of the first end face are separated along the axial direction, and the ring is formed on the first end face A waterproof ring and a cable fixing head that project a plurality of waterproof convex edges arranged in a concentric manner and projecting a fixed waterproof convex portion that protrudes in a circular convex shape on the second end surface.
(2) The waterproof ring is coupled to a cable fixing head, and the cable fixing head includes a connection ring and a fitting groove, and the connection ring further extends in the axial direction from the locking step and the locking step. A first connection stage that has a first outer thread on the first connection stage, the fitting groove being located between the first outer thread and the locking stage, (1) The waterproof ring and the cable fixing head according to (1), wherein the waterproof ring has an engaging surface, a stereotactic groove is recessed on the engagement surface, and the stereotactic waterproof convex portion of the waterproof ring is fitted in the stereolithic groove .
(3) The cable fixing head further includes an outer lid, a clamping claw, and a packing ring. The outer lid is formed on a through hole penetrating in the axial direction and an inner wall surface of the through hole. 1 inclined surface and an internal thread formed on the inner wall surface of the through hole, the clamping claw has a through-hole penetrating in the axial direction, and a second inclined surface on one end edge of the clamping claw A packing projection is formed on the inner wall surface of the through hole, and the clamping claw is located in the through hole of the outer lid and engages with the second inclined surface at the first inclined surface (1 ) Waterproof ring and cable fixing head as described.
(4) The packing ring further includes a first packing stage and a second packing stage, and has a through-hole penetrating in the axial direction, and the through-hole simultaneously penetrates the power cable or the power cable and the wave tube. A hook portion is provided on the inner wall surface of the first packing step, a first inclined weight surface is formed on the outer peripheral surface of the second packing step, and further recessed on the outer peripheral surface of the second packing step. The packing ring is located in the through hole of the clamping claw, and the packing convex portion is fitted to the neck portion, and the connection ring further includes a second connection step and a second inclined portion. The second connection step has a second external thread, the second external thread is engaged with the internal thread of the outer lid, and the second inclined weight surface is inside the connection ring. The first inclined weight surface of the packing ring is coupled to the second inclined surface of the connection ring, and the first packing stage and the second packing of the packing ring are Sources or be bound simultaneously on the cable, the first packing stage and the second packing stage is restrained in the wave tube and the power on the cable, respectively (3) waterproof ring and a cable fixed head according.

  The beneficial effect of the present invention is that when the waterproof ring is put on the first connection stage of the cable fixing head, and the waterproof ring is combined with the fixed head and screwed into the screw hole of the housing, the waterproof convex edge is A tension force is received on the engaging surface that engages with the locking step, and the rotation of the cable fixing head compresses the waterproof ring and packs the plurality of waterproof protrusions. When dust particles are sprayed on the engaging surface of the locking step, the waterproof convex edge of the waterproof ring prevents the dust particles from avoiding gaps, enhances the waterproof effect, or the waterproof ring and the substrate When dust particles are sprayed on the wall surface, the waterproof convex edge of the waterproof ring prevents the dust gap from being avoided, thereby enhancing the waterproof effect.

  The waterproof ring is combined with a cable fixing head to form a waterproof structure with a special orientation and prevention of loosening, and uses the above-described waterproof ring and cable fixing head, of which any of the locking steps of the cable fixing head connecting ring A stereolithic groove is recessed on the engagement surface on one side, and the stereotactic waterproof convex portion of the waterproof ring is fitted in the stereolithic groove to prevent localization and loosening. Packed in the first external thread or the second external thread by coupling to the other or other coupling methods, the user over-presses, rotates the fixed head, couples, packs the waterproof ring, waterproofs When the ring receiving force exceeds a threshold, the waterproof ring rotates in the stereotactic ditch and is not clogged, preventing the waterproof ring packing from deforming and flooding, It has the function of preventing loosening.

  The cable fixing head can have a double packing effect on the cable or cable and wave tube.

It is a side view of the waterproof ring of this invention. It is a 1st end view of the waterproof ring of this invention. It is a 2nd end view of the waterproof ring of this invention. 1 is an exploded sectional view of a first preferred embodiment of the present invention. FIG. 5 is a combined sectional view of the embodiment shown in FIG. 4. FIG. 5 is an explanatory diagram of the use state of the embodiment shown in FIG. FIG. 5 is an explanatory diagram of a use state of the embodiment shown in FIG. 4, and mainly displays a state when combined with a power cable and a wave tube. FIG. 4 is an exploded sectional view of a second preferred embodiment of the present invention. FIG. 9 is a combined sectional view of the embodiment shown in FIG. 8. FIG. 9 is an explanatory diagram of a use state of the embodiment shown in FIG. 8, and mainly displays a state when combined with a power cable and a wave tube. FIG. 6 is an exploded sectional view of a third preferred embodiment of the present invention. FIG. 12 is a combined sectional view of the embodiment shown in FIG. 11. FIG. 12 is an explanatory diagram of a use state of the embodiment shown in FIG. 11, and mainly displays a state when combined with a power cable and a wave tube.

  The waterproof ring of the present invention can be adapted to various types of cable fixing heads, and fix the cables on different fixed objects. In order to make the features and advantages of the present invention easier to understand, examples are given below and described in conjunction with the drawings.

  1 to 5 show a waterproof ring and a cable fixing head 100 provided by a first preferred embodiment of the present invention, which includes a waterproof ring 10 and a cable fixing head 20.

  Referring to FIGS. 1 and 3, the waterproof ring 10 is a ring, is formed of an elastic material, for example, rubber or silicon gel, and has a first end surface 11 and the first end surface 11 along the axial direction thereof. The second end face 12 located on the back surface is partitioned, and a plurality of waterproof convex edges 111 arranged in a concentric manner are provided on the first end face 11 in a ring shape, and the second end face 12 has a circular convex shape. A raised waterproof waterproof part 121 is provided so as to protrude, and the second end surface 12 further includes a waterproof protruding edge 122, and the waterproof raised edge 122 protrudes in a circular convex shape, and the side edge of the fixed waterproof convex part 121. Enclose.

  4 and 7, the cable fixing head 20 includes an outer lid 21, a clamping claw 22, a packing ring 23, and a connection ring 24. The connection ring 23 further includes a locking step 244. A first connection step 242 protruding from one end of the locking step 244 in the axial direction, and a second inclined weight surface 241, and the second inclined weight surface 241 is formed inside the connection ring 24. The second connection step 243 is formed at the other end opposite to the first connection step 242, the first outer thread 245 is formed on the first connection step 242, and the outer diameter of the first connection step 242 Is smaller than the outer diameter of the locking step 244, and the locking step 244 forms an engagement surface 246 on an end surface adjacent to the first connection step 242. A second external thread 247 is formed on the second connection step 243.

  In actual use, the waterproof ring 10 is put on the first connection step 242 of the cable fixing head 20 (that is, the first connection step is inserted in the axial direction of the waterproof ring), and the waterproof ring The first end surface 11 of the wheel 10 is directed toward the engagement surface 246 of the locking step 244. In this way, the first external thread 245 on the first connection step 242 is screwed into the screw hole of the housing, and the waterproof convex edge 111 performs tight engagement with the engagement surface 246, and the waterproof convex edge 111 avoids dust particles on the wall of the housing and prevents moisture from entering the housing through the dust gap.

  The waterproof ring 10 includes a plurality of waterproof protrusions 111 on the first end face, the second end face 12 has a stereotactic waterproof protrusion 121, and utilizes an O-shaped ring design of an elastic material. The elastic deformation capability is better, the rotation with excessive external force is enough to overcome the breaking of the packing, and solves the deficiency of the conventional elastic pad or waterproof pad ring lacking elastic deformation capability.

  The fixed head structure further includes a fitting groove 249, and the fitting groove 249 is located between the first outer thread step 245 or the second outer thread step 247 and the locking step 24, If the waterproof ring 10 is put on and fixed in the fitting groove 249, the waterproof ring 10 will not drop off in the process of carrying and moving the fixed head 20, and inevitably work efficiency. To assist.

  4, 7, and 8, the outer lid 21 of the cable fixing head 20 further includes a through hole 211 that penetrates in the axial direction, and a first inclined surface 212 that is formed on the inner wall surface of the through hole 211. And an internal thread 213 formed on the inner wall surface of the through hole 211.

  The clamping claw 22 is a hollow body and has a plurality of claw portions 221, the clamping claw 22 passes through the through hole 222 in the axial direction, and the clamping claw 22 is an outer edge of the claw portion 221. An annular packing convex portion 224 is formed on the inner wall surface corresponding to the claw portion of the through-hole 222 having the second inclined surface 223.

  The packing ring 23 is made of a material having an elastic deformation capability, for example, a rubber material. The packing ring 23 is integrally connected by a first packing step 231 and a second packing step 232, has a through-hole 233 penetrating in the axial direction, and the second packing step 232 extends from a free edge. The outer diameter and the inner diameter of the first packing step 231 are gradually reduced, and a neck portion 234 that is annularly recessed is formed on the outer peripheral surface of the first packing step 231. An inclined weight surface 235 is formed.

  The first packing step 231 of the packing ring 23 is fitted into the through hole 222 of the clamping claw 22, and the packing convex portion 224 of the clamping claw 22 is fitted into the neck 234 of the packing ring 23, The second packing step 232 of the ring 23 is pierced inside the connection ring 24, and is screwed with the inner thread 213 of the outer lid 21 by the second outer thread 247 of the connection ring 24. The second inclined surface 223 is positioned on a relative position corresponding to the first inclined surface 212 of the outer lid 21, and the first inclined weight surface 235 of the packing ring 23 is connected to the second inclined weight surface 24 of the connection ring 24. It is located on the relative position corresponding to.

  As shown in FIG. 6, when the present invention is connected to the power cable 99, the power cable 99 is passed through the through hole 211 of the outer lid 21, and the power cable 99 is passed through the through hole 233 of the packing ring 23. When the power cable 99 is to be firmly fixed, the outer lid 21 is rotated firmly (that is, the outer lid 21 is rotated in the direction of the connection ring 24), and is clamped by the first inclined surface 212 of the outer lid 21. The locking of the second inclined surface 223 of the claw 22 is started, the first packing step 231 of the packing ring 23 is started to be restrained, and the deformation is generated at the position where the packing ring 23 receives force, that is, the first The inner wall surface of the neck portion 234 of the one packing stage 231 is started to be deformed, constrained on the power cable 99 to form a first packing region to be packed against the power cable 99, and at the same time the outer lid 21 rotates, Pack The first inclined weight surface 235 of the second packing stage 232 of the inner ring 23 is pressed against the second inclined weight surface 241 of the connection ring 24, causing deformation of the packing on the power cable 99, A second packing region to be packed is formed.

  The power cable 99 is simultaneously pressed by the first packing stage 231 and the second packing stage 232 of the packing ring 23 to achieve the double packing effect, and the power cable is subjected to the action of external force, stretched, and detached. To prevent.

  In FIG. 7, when the waterproof ring and cable fixing head 100 of the present invention is connected to the power cable 99 covered with the wave tube 97, the power cable 99 penetrates the packing ring 23 into the through hole 233, and the power cable 99 Is located in the second packing stage 232, and the wave tube 97 is located in the first packing stage. The first packing stage 231 and the second packing stage When receiving the force 232 and starting deformation, the first packing stage 231 is firmly restrained on the wave tube 97, and the second packing stage 232 is firmly restrained on the power cable 99, and The packing aspect can be achieved in the same way, the difference being only in packing the wave tube and the power cable, respectively, not double packing on the power cable, You can achieve the object of the present invention.

  8 to 10 show a waterproof ring and a cable fixing head 300 provided by the second preferred embodiment of the present invention, which includes the waterproof ring 10 and the cable fixing head 20 as in the first preferred embodiment. The main differences are as follows.

  In the present embodiment, a positioning groove 248 is further recessed on the engaging surface 246 of the locking step 244 of the connection ring 23. The stereotaxic convex portion 121 of the waterproof ring 10 is directed to the stereotaxic groove 248, and the stereotactic waterproof convex portion of the waterproof ring 10 is fitted in the stereolithic concave groove 248 to use the situation of the previous period, for example, the waterproof ring 10 When the cable fixing head 20 is coupled and the cable is fixed to the housing 96, the screw hole 961 having the inner thread of the housing 96 is screwed onto the outer thread 245 of the first connection stage 242 of the fixed head 20. The waterproof ring 10 is pushed up to press the waterproof ring 10 and the waterproof effect is the same as described above. The waterproof convex edge 111 of the waterproof ring 10 is engaged with the housing 96 and coupled to the wall surface of the housing. The location can avoid dust particles on the wall surface of the housing, prevent water molecules from entering the housing through the dust gap, increase the waterproof effect, and the fitting effect between the connection ring 24 and the housing 96 The In addition, the waterproofing convex portion 121 of the waterproof ring 10 is fitted into the concave groove 248 to prevent the localization and loosening, and the waterproof ring 10 is screwed into the screw hole 961 of the housing 96. The first outer thread 242 is screwed, the waterproof ring 10 is rotationally compressed, and when the packing exceeds the threshold value of the waterproof ring, the waterproof ring 10 can rotate. Without being clogged, the packing of the waterproof ring 10 is deformed, excessively separated, and prevents flooding, and at the same time has a night of prevention of loosening.

  Further, the second end surface 12 further includes at least one waterproof convex edge 122 formed on one side of the stereotactic waterproof convex portion 121, and the waterproof convex edge 122 has a waterproof and dustproof function on the second end surface 12. Can be further increased.

  The above-mentioned wave tube 97 should be diluted in a broad sense and is not limited to one structure or material, and at the same time includes, for example, a helical serpentine tube, a general equidistant wave tube, a metal, Including plastic or rubber material.

  11 to 13, the waterproof ring and cable fixing head 200 provided by the third preferred embodiment of the present invention includes the waterproof ring 10 and the cable fixing head 20 as in the above-described embodiment. , Below.

  A hook portion 237 is further provided on the inner wall surface of the first packing step 231 of the packing ring 23 of the cable fixing head 20 of this embodiment, and when the power cable 99 and the wave tube 97 are penetrated, the hook portion 237 The wave tube 97 can be fitted into a concave groove formed on the outer peripheral surface, and the fixing effect of packing the wave tube 97 is improved.

  The packing ring 23 is provided with a groove 236 that is further recessed on the outer peripheral surface of the second packing stage 232, and when the connection packing is to be performed on a power cable having a relatively large diameter, the groove 236 is formed in the second packing step 232. The edge located at the two packing stage 232 can be cut off, which is advantageous for providing a double packing effect on a large diameter power cable. However, the size of the excision area can be determined by the actual diameter of the power cable.

In the present invention, preferred embodiments have been disclosed as described above, but these are not intended to limit the present invention in any way, and anyone who is familiar with the technology has an equivalent scope that does not depart from the spirit and scope of the present invention. Of course, various fluctuations and hydration colors can be added.

"First preferred embodiment"
DESCRIPTION OF SYMBOLS 100 Waterproof ring and cable fixing head 10 Waterproof ring 11 1st end surface 111 Waterproof convex edge 12 2nd end surface 121 Localization waterproof convex part 122 Waterproof convex edge 20 Cable fixing head 21 Outer lid 211 Through-hole 212 1st slope 213 Internal thread 22 Clamping claw 221 Claw portion 222 Through hole 223 Second inclined surface 224 Tightening convex portion 23 Packing ring 231 First tightening step 234 Neck portion 232 Second tightening step 235 First inclined weight surface 233 Through hole 236 Groove 24 Connection ring 241 Second inclined Weight surface 242 First connection step 245 First outer thread 243 Second connection step 247 Second outer thread 244 Locking step 246 Engaging surface 249 Fitting groove 99 Power cable 97 Wave tube "Second preferred embodiment"
300 Waterproof ring and cable fixing head 10 Waterproof ring 121 Stereotactic waterproof convex part 20 Cable fixing head 24 Connection ring 242 First connection stage 244 Locking stage 245 First external thread 246 Engaging surface 248 Localization groove 96 Housing 961 Screw hole "Third preferred embodiment"
200 Waterproof ring and cable fixing head 10 Waterproof ring 20 Cable fixing head 23 Packing ring 231 First tightening step 237 Hook 99 Power cable 97 Wave tube

Claims (4)

  Including a waterproof ring, the waterproof ring being a ring body, separating the first end face and the second end face located at the back of the first end face along an axial direction thereof, and presenting an annular shape on the first end face; A waterproof ring and a cable fixing head, wherein a plurality of waterproof convex edges arranged in a concentric manner are projected, and a stereotactic waterproof convex portion protruding in a circular convex shape is projected on the second end face.   The waterproof ring is coupled to a cable fixing head. The cable fixing head includes a connection ring and a fitting groove, and the connection ring further extends in the axial direction from the locking step and the locking step. Including a connection step, having a first outer thread on the first connection step, the fitting groove being located between the first outer thread and the locking step, and the locking step being engaged The waterproof ring and the cable fixing head according to claim 1, further comprising: a recessed groove formed on the engaging surface, wherein the fixed waterproof convex portion of the waterproof ring is fitted in the fixed groove. The cable fixing head further includes an outer lid, a clamping claw, and a packing ring, and the outer lid has a through hole penetrating in the axial direction, and a first slope formed on the inner wall surface of the through hole. An internal thread formed on the inner wall surface of the through hole, and the clamping claw has a through-hole penetrating in the axial direction, and has a second slope on one end edge of the clamping claw The packing protrusion is formed on the inner wall surface of the through hole, and the clamping claw is located in the through hole of the outer lid and engages with the second inclined surface at the first inclined surface. Waterproof ring and cable fixing head.   The packing ring further includes a first packing stage and a second packing stage, and has a through-hole penetrating in the axial direction. The through-hole simultaneously penetrates a power cable or a power cable and a wave tube, A hook portion is provided on the inner wall surface of the first packing step, a first inclined weight surface is formed on the outer peripheral surface of the second packing step, and a groove is further recessed on the outer peripheral surface of the second packing step. The packing ring is located in the through hole of the clamping claw, and the packing convex portion is fitted to the neck portion, and the connection ring further includes a second connection step and a second inclined weight surface. The second connection stage has a second external thread, the second external thread is engaged with the internal thread of the outer lid, and the second inclined weight surface is located inside the connection ring. The first inclined weight surface of the packing ring is coupled to the second inclined surface of the connection ring, and the first packing stage and the second packing of the packing ring are connected to the power supply casing. Either constrained simultaneously on table, waterproof ring and a cable fixed head according to claim 3, wherein the first packing stage and the second packing stage is restrained in the wave tube and the power on the cable, respectively.

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