阅读说明：本技术 一种螺牙式尾线防水结构及其组装方法 (Thread type tail wire waterproof structure and assembling method thereof ) 是由 胡斌辉 于永祥 魏子森 于 2020-12-05 设计创作，主要内容包括：本发明公开了一种螺牙式尾线防水结构及其组装方法,包括外壳,在外壳的上方设置有安装凹槽,在安装凹槽内设置有第一内螺纹部,在第一内螺纹部螺纹连接有中心为通孔的护套卡扣,在安装凹槽的上方设置有一个以上的卡位槽,在护套卡扣的上方设置有与卡位槽配合的卡齿,在护套卡扣的通孔内套有螺牙件,所述螺牙件的下方伸出护套卡扣后与安装凹槽内壁相抵,在螺牙件伸出护套卡扣的外侧设置有限位环,在限位环上套有O型防水硅胶圈,所述限位环的上台面与螺牙件的下台面相抵,在螺牙件外套有位于护套卡扣下台面与限位环上台面之间的密封硅胶垫。本发明整体结构简单,密封效果好,组装方便。(The invention discloses a thread type tail wire waterproof structure and an assembling method thereof, and the thread type tail wire waterproof structure comprises a shell, wherein an installation groove is arranged above the shell, a first internal thread part is arranged in the installation groove, a sheath buckle with a through hole at the center is in threaded connection with the first internal thread part, more than one clamping groove is arranged above the installation groove, a clamping tooth matched with the clamping groove is arranged above the sheath buckle, a thread piece is sleeved in the through hole of the sheath buckle, the lower part of the thread piece extends out of the sheath buckle and then abuts against the inner wall of the installation groove, a limiting ring is arranged on the outer side of the thread piece extending out of the sheath buckle, an O-shaped waterproof silica gel ring is sleeved on the limiting ring, the upper table surface of the limiting ring abuts against the lower table surface of the thread piece, and a sealing silica gel pad positioned between the lower table surface of the sheath buckle and the upper table surface of the limiting ring is sleeved outside the thread piece. The invention has simple integral structure, good sealing effect and convenient assembly.)

1. The utility model provides a thread formula tail waterproof construction, includes shell (1), its characterized in that: a mounting groove (2) is arranged above the shell (1), a first internal thread (14) part (3) is arranged in the mounting groove (2), a sheath buckle (4) with a through hole at the center is in threaded connection with the first internal thread (14) part (3), more than one clamping groove (5) is arranged above the mounting groove (2), a latch (6) matched with the clamping groove (5) is arranged above the sheath buckle (4), a screw element (7) is sleeved in the through hole of the sheath buckle (4), the lower part of the screw element (7) extends out of the sheath buckle (4) and then abuts against the inner wall of the mounting groove (2), a limiting ring (8) is arranged on the outer side of the screw element (7) extending out of the sheath buckle (4), an O-shaped waterproof ring (9) is sleeved on the limiting ring (8), the upper table surface of the limiting ring (8) abuts against the lower table surface of the screw element (7), a sealing silica gel pad (10) positioned between the lower table surface of the sheath buckle (4) and the upper table surface of the limiting ring (8) is sleeved outside the screw tooth piece (7).

2. The waterproof structure of a thread-type tail wire according to claim 1, wherein: be provided with first spacing platform (11) in mounting groove (2), first spacing platform (11) offsets with the lower mesa of spacing ring (8), the silica gel recess (12) of spacing ring (8) are arranged in to first waterproof silica gel circle, the outer wall and mounting groove (2) inner wall of O type waterproof silica gel circle (9) offset.

3. The waterproof structure of a thread-type tail wire according to claim 1, wherein: the outer side of the sheath buckle (4) is provided with a first external thread part (13) matched with the first internal thread part (3).

4. The waterproof structure of a thread-type tail wire according to claim 1, wherein: the clamping teeth (6) are annularly distributed on the side wall of the sheath buckle (4), and the clamping teeth (6) are of a trapezoidal structure.

5. The waterproof structure of a thread-type tail wire according to claim 1, wherein: and a second external thread part (15) is arranged outside the thread piece (7) below the limiting ring (8).

6. The assembling method for assembling the thread-type tail waterproof structure of claim 1 is characterized by comprising the following steps:

s1, firstly, sleeving an O-shaped waterproof silica gel ring (9) at a set position of the screw tooth piece (7), and then sleeving a sealing silica gel pad (10) above a limiting ring (8) of the screw tooth piece (7);

s2, inserting the upper end of the screw element (7) completed in the step S1 into the sheath buckle (4) to form an assembly;

s3, the combined piece and the shell (1) in the step S2 are connected through threads and rotate to enter the shell (1) until the latch (6) on the top of the sheath buckle (4) and the blocking groove (5) on the shell (1) stop rotating, and then the installation can be completed.

Technical Field

The invention relates to the technical field of a tail wire waterproof structure, in particular to a thread type tail wire waterproof structure and an assembling method thereof.

Background

Waterproofing of cable tails typically uses tools such as: waterproof cover, autohension sticky tape, insulating adhesive tape, the waterproof construction that is most commonly used is waterproof cover, waterproof cover generally includes sheath and shell, through mutually supporting sheath and shell and realize the waterproof effect to the afterbody, therefore waterproof cover is extremely important, but waterproof cover's sheath and shell pass through the equipment of back-off formula elasticity buckle structure among the current structure, its thread portion passes through the thread meshing with the shell, consequently, the equipment clearance to relevant existence realizes waterproofly through the sealing silica gel circle of isostructure, and following several problems exist in such structure: 1. the whole structure is complex, and the assembly is difficult; 2. 3 different silica gel rings are needed; 3. adopt the back-off formula structure to detain the point simultaneously and be elastic construction, it is higher to detain the point requirement, and the easy deformation of buckle power arm shrink is rocked and is leaded to the risk that sheath and shell break away from in adverse circumstances, so needs to improve.

Disclosure of Invention

The invention aims to provide a thread type tail wire waterproof structure and an assembling method thereof, which aim to solve the problems of complex overall structure and difficult assembly in the background technology; different kinds of silica gel rings are needed; and meanwhile, the buckling point of the inverted buckling structure is an elastic structure, the requirement on the buckling point is high, and the buckling force arm is easy to deform and shake in severe environment, so that the risk that the sheath is separated from the shell is caused.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thread formula tail wire waterproof construction, includes the shell, is provided with mounting groove in the top of shell, is provided with first internal thread portion in mounting groove, has the sheath buckle that the center is the through-hole at first internal thread portion threaded connection, is provided with more than one screens groove in mounting groove's top, be provided with in the top of sheath buckle with screens groove complex latch, the cover has thread spare in the through-hole endotheca of sheath buckle, the below of thread spare stretches out behind the sheath buckle and offsets with the mounting groove inner wall, is provided with the spacing ring in the outside that the sheath buckle was stretched out to thread spare, overlaps on the spacing ring has the waterproof silica gel circle of O type, the last mesa of spacing ring offsets with the lower mesa of thread spare, has the sealing silica gel pad that lies in between mesa and the spacing ring on the mesa under the sheath buckle at thread spare overcoat.

Preferably, in order to facilitate limiting, a first limiting table is arranged in the mounting groove and abuts against the lower table surface of the limiting ring, the first waterproof silica gel ring is arranged in the silica gel groove of the limiting ring, and the outer wall of the O-shaped waterproof silica gel ring abuts against the inner wall of the mounting groove.

Preferably, the outer side of the sheath buckle is provided with a first external thread part matched with the first internal thread part.

Preferably, in order to improve the limiting effect and realize intelligent single-phase screwing, the clamping teeth are annularly distributed on the side wall of the sheath buckle and are of a trapezoidal structure.

Preferably, a second external thread part is arranged outside the thread piece below the limiting ring.

The invention also discloses an assembly method of the thread type tail wire waterproof structure, which specifically comprises the following steps:

s1, firstly, sleeving an O-shaped waterproof silica gel ring at a set position of the screw tooth piece, and then sleeving a sealing silica gel pad above a limiting ring of the screw tooth piece;

s2, inserting the upper end of the screw element finished in the step S1 into a sheath buckle to form an assembly;

and S3, connecting the assembly and the shell in the step S2 by screw threads, and rotating the assembly and the shell into the shell until the latch at the top of the sheath buckle and the blocking groove on the shell stop rotating.

The technical effects of the thread type tail wire waterproof structure and the assembling method thereof obtained by the invention are as follows: a limit ring is arranged on the outer side of the screw tooth piece, then an O-shaped waterproof silica gel ring is arranged in the limit ring to realize primary sealing with the shell, meanwhile, due to the arrangement of the limit ring, a table surface is formed between the upper surface of the limit ring and the bottom of the sheath buckle, and secondary sealing is realized by using a sealing silica gel pad, and because the table top is arranged, the sealing is better, compared with the prior structure which needs to be sealed by three sealing rings, the structure has simpler design structure, the assembly is more convenient, and simultaneously, when the buckle is matched, the buckle matching structure is arranged at the upper end position of the sheath buckle, the sheath buckle is firstly connected with the shell by screw thread, the sheath buckle is screwed into the shell, can guarantee to let the latch card on the screens groove at last rotating, compare the installation form of current direct back-off, the assembly of this structure is simpler, and in case can't break away from at all after the installation.

Drawings

Fig. 1 is a schematic overall structure diagram of a screw-type tail waterproof structure in this embodiment 1;

fig. 2 is a schematic structural view of a screw-type tail waterproof structure in the embodiment 1 when the outer shell is removed;

fig. 3 is an exploded view of a screw-type tail waterproof structure in the embodiment 1;

fig. 4 is a sectional view of a screw type tail waterproof structure in the embodiment 1.

In the figure: the sealing structure comprises a shell 1, a mounting groove 2, a first internal thread part 3, a sheath buckle 4, a clamping groove 5, a clamping tooth 6, a thread piece 7, a limiting ring 8, an O-shaped waterproof silica gel ring 9, a sealing silica gel pad 10, a first limiting table 11, a silica gel groove 12, a first external thread part 13 and a second external thread part 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 4, the present embodiment provides a waterproof structure of a screw-type tail wire, including a housing 1, a mounting groove 2 is provided above the housing 1, a first internal thread 14 portion 3 is provided in the mounting groove 2, a sheath buckle 4 with a through hole at the center is connected with the first internal thread 14 part 3 through screw threads, more than one clamping groove 5 is arranged above the mounting groove 2, a latch 6 matched with the blocking groove 5 is arranged above the sheath buckle 4, a screw element 7 is sleeved in the through hole of the sheath buckle 4, the lower part of the screw element 7 extends out of the sheath buckle 4 and then is propped against the inner wall of the mounting groove 2, a limiting ring 8 is arranged on the outer side of the screw tooth piece 7 extending out of the sheath buckle 4, an O-shaped waterproof silica gel ring 9 is sleeved on the limiting ring 8, the upper table surface of the limiting ring 8 is abutted against the lower table surface of the screw tooth piece 7, and a sealing silica gel pad 10 positioned between the lower table surface of the sheath buckle 4 and the upper table surface of the limiting ring 8 is sleeved outside the screw tooth piece 7.

Through the structure, a limit ring 8 is arranged on the outer side of the screw tooth piece 7, then an O-shaped waterproof silica gel ring 9 is arranged in the limit ring 8 to realize primary sealing with the shell 1, meanwhile, due to the arrangement of the limit ring 8, a table top is formed between the upper surface of the limit ring 8 and the bottom of the sheath buckle 4, and secondary sealing is realized by using a silica gel gasket 10, and the sealing is better due to the arrangement of the table top, compared with the existing structure which needs to be sealed by three seal rings, the structure has simpler design structure and more convenient assembly, meanwhile, when the buckle is matched, the buckle matching structure is arranged at the upper end position of the sheath buckle, the sheath buckle is firstly in threaded connection with the shell 1, the sheath buckle is screwed into the shell 1, and the clamping tooth 6 can be ensured to be clamped on the clamping groove 5 at last after the rotation, compared with the existing installation form of direct back-off, the assembly of this structure is simpler, and in case can't break away from at all after the installation, consequently this structure is because sheath buckle 4 assembles with the shell through the thread mode, and tooth structure and shell lock are passed through at 4 tops of sheath buckle, prevent that sheath buckle 4 from receiving external force to rotate, and this structure can prevent that sheath buckle 4 from causing the not hard up problem of sheath and shell because of rocking or adverse circumstances.

Preferably, in order to facilitate the limiting, a first limiting table 11 is arranged in the mounting groove 2, the first limiting table 11 abuts against the lower table surface of the limiting ring 8, the first waterproof silicone ring is arranged in the silicone groove 12 of the limiting ring 8, and the outer wall of the O-shaped waterproof silicone ring 9 abuts against the inner wall of the mounting groove 2.

Preferably, a first external thread portion 13 engaged with the first internal thread portion 3 is provided on the outer side of the sheath buckle 4.

Preferably, in order to improve the limiting effect and realize intelligent single-phase screwing, the latch 6 is annularly distributed on the side wall of the sheath buckle 4, and the latch 6 is in a trapezoidal structure.

Preferably, a second external thread part 15 is arranged outside the thread element 7 below the limiting ring 8.

The embodiment also discloses an assembling method of the thread type tail wire waterproof structure, which specifically comprises the following steps:

s1, firstly, sleeving an O-shaped waterproof silica gel ring 9 at a set position of the screw thread piece 7, and then sleeving a sealing silica gel pad 10 above a limiting ring 8 of the screw thread piece 7;

s2, inserting the upper end of the screw element 7 completed in the step S1 into the sheath buckle 4 to form a combined piece;

s3, the combined piece in the step S2 is connected with the shell 1 through screw threads and rotates to enter the shell 1, and the installation can be completed until the latch 6 at the top of the sheath buckle 4 and the blocking groove 5 on the shell 1 stop rotating.

The whole assembly process in the assembly method disclosed by the embodiment is relatively simple, and quick assembly is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.