Waterproof wire pulling device

Abstract

The invention relates to a waterproof wire pulling device, which comprises a sleeve provided with an accommodating cavity, and one side of the accommodating cavity is provided with a first opening; the rotating shaft comprises a shaft rod, one part of the shaft rod is arranged in the containing cavity in a penetrating mode from the first opening, the other part of the shaft rod protrudes out of the containing cavity from the first opening, and the part, protruding out of the containing cavity, of the shaft rod is provided with a thread shifting part and a water blocking part; the bearing is arranged in the containing cavity, the shaft rod is sleeved with the bearing, and the bearing is used for supporting the rotating shaft to rotate; the end cover is arranged at the first opening of the sleeve, the end cover is provided with a through hole for the rotating shaft to penetrate through, and the water retaining part is arranged in the through hole; the first sealing ring is arranged between the end cover and the water retaining part, and the gap between the end cover and the water retaining part is blocked by the first sealing ring. The invention provides a waterproof wire shifting device which can prevent water mist and water vapor from entering the bearing of the wire shifting device and protect the wire shifting device to be stably used in a humid environment for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cable preparation, in particular to a waterproof wire remover. Background Art

[0002] In the optical cable preparation process, optical fiber sheathing is one of the important processing techniques. Optical fiber sheathing is to extrude a loose tube or bundle tube outside the optical fiber through a sheathing machine to protect the optical fiber. After the optical fiber sheathing is completed, the loose tube formed by sheathing needs to be wound onto the reel. During the transportation process from the sheathing machine to the reel, in order to limit the transportation direction of the tube, it is necessary to set wire spreaders on both sides of the tube running path to form a tube channel between the wire spreaders on both sides.

[0003] Since the wire puller needs to contact the transported casing, it is required to be able to rotate passively. In this way, when the casing contacts the wire puller, the wire puller can not only limit the moving direction of the casing, but also will not affect the transportation of the casing. In actual production, the wire puller of the prior art includes: a support rod, a bearing is arranged at the end of the support rod, and a roller is arranged outside the bearing, and the roller is supported by the bearing so that it can rotate relative to the support rod.

[0004] There is absolutely no problem in continuously using the wire puller of the prior art in a dry environment. However, in the sleeve molding process, after the sleeve is prepared by an extruder, the sleeve needs to be introduced into a water tank to quickly cool and form it. In actual production, it is found that when the wire puller of the prior art is used near a water tank, the sleeve will carry a certain amount of water vapor or water droplets after it comes out of the water. After long-term use, water stains and rust will accumulate in the bearings of the wire puller, affecting the rotation of the roller. The roller cannot rotate, which easily causes the sleeve to be strained when pulling the wire, affecting the production quality of the sleeve. Summary of the Invention

[0005] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the internal bearings of the wire puller are prone to accumulate water stains and rust in a humid working environment, and to provide a waterproof wire puller that can prevent water mist and water vapor from entering the bearings of the wire puller, thereby protecting the wire puller so that it can be used stably in a humid environment for a long time.

[0006] In order to solve the above technical problems, the present invention provides a waterproof wire remover, comprising:

[0007] A sleeve, wherein the sleeve has an accommodating cavity, and a first opening is provided on one side of the accommodating cavity;

[0008] The rotating shaft includes a shaft, a portion of the shaft is inserted into the accommodating cavity through the first opening, another portion of the shaft protrudes from the first opening out of the accommodating cavity, and a wire-digging portion and a water-blocking portion are provided on the portion of the shaft protruding from the accommodating cavity;

[0009] A bearing is disposed in the accommodating cavity, the bearing is sleeved outside the shaft, and the bearing is used to support the rotation of the shaft;

[0010] an end cover, disposed at the first opening of the sleeve, the end cover having a through hole for the rotating shaft to pass through, the water retaining portion being disposed in the through hole;

[0011] The first sealing ring is arranged between the end cover and the water retaining portion, and the first sealing ring blocks the gap between the end cover and the water retaining portion.

[0012] In one embodiment of the present invention, the side of the water retaining portion facing the sleeve is a plane, and the side of the water retaining portion facing away from the sleeve is an inclined surface, and the inclined surface is inclined from the first opening toward the accommodating cavity.

[0013] In one embodiment of the present invention, the diameter of the water retaining portion is larger than the diameter of the first opening.

[0014] In one embodiment of the present invention, the rotating shaft is integrally formed.

[0015] In one embodiment of the present invention, a first bearing and a second bearing are provided in the accommodating cavity, a sleeve is provided between the first bearing and the second bearing, and an annular boss for clamping the first bearing and the second bearing is provided on the inner wall of the sleeve corresponding to the sleeve;

[0016] The first bearing is arranged near the first opening, an annular step is arranged on the shaft, the annular step cooperates with the shaft sleeve and the annular boss to form a first limiting groove, and the first bearing is arranged in the first limiting groove;

[0017] The second bearing is arranged at the end of the shaft rod. A gasket is arranged at the end of the shaft rod. The gasket cooperates with the shaft sleeve and the annular boss to form a second limiting groove. The second bearing is arranged in the second limiting groove.

[0018] In one embodiment of the present invention, a second opening is provided on the other side of the accommodating cavity corresponding to the first opening, and a bottom plate is provided at the second opening to block the second opening.

[0019] In one embodiment of the present invention, the end cover and the bottom plate are detachably fixed at the first opening and the second opening by bolts.

[0020] In one embodiment of the present invention, a second sealing ring is provided between the end cover and the first opening, and between the bottom plate and the second opening.

[0021] In one embodiment of the present invention, an annular groove is provided on the inner side wall of the end cover, the annular groove is arranged on the outer periphery of the water retaining portion, the first sealing ring is embedded in the annular groove, and the first sealing ring protrudes from the annular groove.

[0022] In one embodiment of the present invention, a support frame is further included. The support frame includes a support rod and a buckle that is buckled on the support rod. The sleeve is fixed between the support rod and the buckle.

[0023] The above technical solution of the present invention has the following advantages over the prior art:

[0024] The waterproof wire puller described in the present invention arranges the bearing in the accommodating cavity of the sleeve, arranges a water retaining portion on the rotating shaft to block the opening of the accommodating cavity, and arranges a first sealing ring between the water retaining portion and the end cover to achieve sealing of the accommodating cavity, which can prevent water mist and water vapor from entering the accommodating cavity, and provides waterproof protection for the bearing, thereby ensuring that the wire puller can be used stably in a humid environment for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 It is a schematic diagram of the overall structure of the waterproof wire remover of the present invention;

[0027] Figure 2 1 is a schematic diagram of the internal cross-sectional structure of the waterproof wire remover of the present invention;

[0028] Figure 3 1 is a schematic diagram of the internal cross-sectional structure of the sleeve of the present invention;

[0029] Figure 4 1 is a schematic diagram of the internal cross-sectional structure of the rotating shaft of the present invention;

[0030] Figure 5 It is a schematic diagram of the internal cross-sectional structure of the end cover of the present invention.

[0031] Explanation of the reference numerals in the specification: 1. sleeve; 101. accommodating chamber; 102. first opening; 103. second opening; 104. annular boss; 2. rotating shaft; 201. shaft; 202. wire-digging part; 203. water-retaining part; 2031. plane; 2032. inclined surface; 204. annular step; 3. bearing; 301. first bearing; 302. second bearing; 4. end cover; 401. annular groove; 5. first sealing ring; 6. bushing; 7. gasket; 8. bottom plate; 9. second sealing ring; 10. support frame. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0033] Reference Figure 1 and Figure 2 As shown, the present invention provides a waterproof wire remover, comprising: a sleeve 1, a rotating shaft 2, a bearing 3, an end cover 4 and a first sealing ring 5, referring to Figure 3 As shown, wherein: the sleeve 1 has a receiving cavity 101, a first opening 102 is provided on one side of the receiving cavity 101, and the rotating shaft 2 is inserted into the receiving cavity 101 from the position of the first opening 102, Figure 4 As shown, the rotating shaft 2 includes a shaft 201, a portion of the shaft 201 is inserted into the accommodating cavity 101 from the first opening 102, and another portion of the shaft 201 protrudes from the accommodating cavity 101 from the first opening 102. A wire-digging portion 202 and a water-blocking portion 203 are provided on the portion of the shaft 201 protruding from the accommodating cavity 101. The water-blocking portion 203 is provided near the first opening 102 at the outside of the first opening 102, and the wire-digging portion 202 is provided on the shaft. At the end of the rod 201, the bearing 3 is arranged in the accommodating cavity 101, and the bearing 3 is sleeved outside the shaft 201, and the bearing 3 is used to support the rotation of the rotating shaft 2; the end cover 4 is arranged at the first opening 102 of the sleeve 1, and the end cover 4 has a through hole for the rotating shaft 2 to pass through, and the water retaining part 203 is arranged in the through hole; the first sealing ring 5 is arranged between the end cover 4 and the water retaining part 203, and the first sealing ring 5 blocks the gap between the end cover 4 and the water retaining part 203.

[0034] In this embodiment, multiple waterproof measures are provided to prevent water vapor from affecting the rotation of the bearing 3:

[0035] 1. Change the exposed bearing 3 structure of the original wire remover and set the bearing 3 in the sleeve 1. The sleeve 1 isolates and protects the bearing 3 to prevent water vapor from splashing directly onto the bearing 3;

[0036] 2. Arrange the shaft 201 to lead out from the sleeve 1, and set the wire-digging part 202 at the end of the shaft 201, so that the wire-digging part 202 is as far away from the bearing 3 as possible, thereby extending the spreading path of water vapor and achieving the purpose of reducing the total amount of water vapor;

[0037] 3. A water retaining portion 203 is provided on the shaft 201 to block the first opening 102 of the accommodating chamber 101 through the water retaining portion 203 to prevent water vapor from splashing from the first opening 102 into the accommodating chamber 101;

[0038] 4. A first sealing ring 5 is provided between the water retaining portion 203 and the end cover 4 to seal the accommodating cavity 101 and prevent water mist and water vapor from spreading into the accommodating cavity 101;

[0039] Through the above-mentioned waterproof measures, the bearing 3 is provided with multiple waterproof protections, thereby ensuring that the wire remover can be used stably in a humid environment for a long time.

[0040] Reference Figure 2 and Figure 4 As shown, the side of the water retaining portion 203 facing the sleeve 1 is a plane 2031, and the side of the water retaining portion 203 away from the sleeve 1 is an inclined surface 2032, and the inclination direction of the inclined surface 2032 is: inclined from the first opening 102 toward the direction of the accommodating chamber 101, so that a conical groove is formed on the side of the water retaining portion 203 away from the sleeve 1, and water droplets splashed on the water retaining portion 203 fall and accumulate in the conical groove under the action of gravity, and will not flow into the gap between the water retaining portion 203 and the end cover 4, so that it can further prevent the water from flowing into the accommodating chamber 101 from the gap between the water retaining portion 203 and the end cover 4.

[0041] Reference Figure 2 and Figure 4 As shown, the diameter of the water retaining portion 203 is larger than the caliber of the first opening 102. The provision of the water retaining portion 203 not only blocks the first opening 102, but also adds a bending path between the water retaining portion 203 and the first opening 102, thereby further increasing the distance for water vapor to enter the accommodating cavity 101, and is also a waterproof design with a bending path.

[0042] Specifically, in this embodiment, the rotating shaft 2 is integrally formed, that is, the shaft 201, the water retaining portion 203 and the wire-digging portion 202 are integrally formed and connected, which increases the strength of the entire rotating shaft 2. Through mold injection molding, the production difficulty of the shaft 201 can also be reduced. During actual use, the wire-digging portion 202 is in direct contact with the sleeve. A rubber sleeve can be provided on the outer surface of the wire-digging portion 202 to make the wire-digging portion 202 in flexible contact with the sleeve, which can prevent the wire-digging portion 202 from scratching the sleeve.

[0043] Reference Figure 5 As shown, in this embodiment, the first sealing ring 5 is fixed between the water retaining portion 203 and the end cover 4, and an annular groove 401 is opened on the inner wall of the end cover 4. The annular groove 401 is arranged on the outer periphery of the water retaining portion 203, and the first sealing ring 5 is embedded in the annular groove 401. The first sealing ring 5 protrudes from the annular groove 401. The provision of the annular groove 401 not only provides an installation space for the first sealing ring 5, but also prevents the first sealing ring 5 from being displaced, thereby ensuring that the first sealing ring 5 can be stably arranged between the water retaining portion 203 and the end cover 4.

[0044] Reference Figure 2 As shown, in this embodiment, in order to make the wire-drying portion 202 as far away from the sleeve 1 as possible, the length of the shaft 201 is increased. In order to ensure that the shaft 201 can be stably supported, two bearings 3 are provided in the accommodating cavity 101, namely: a first bearing 301 and a second bearing 302. In order to limit and fix the first bearing 301 and the second bearing 302, a sleeve 6 is provided between the first bearing 301 and the second bearing 302, and an annular boss 104 for clamping the first bearing 301 and the second bearing 302 is provided on the inner wall of the sleeve 1 corresponding to the sleeve 6, wherein: the first bearing 301 It is arranged close to the first opening 102, and an annular step is provided on the shaft rod 201. The annular step cooperates with the shaft sleeve 6 and the annular boss 104 to form a first limiting groove, and the first bearing 301 is arranged in the first limiting groove; the second bearing 302 is arranged at the end of the shaft rod 201, and a gasket 7 is provided at the end of the shaft rod 201. A threaded hole is opened at the end of the shaft rod 201, and a bolt is screwed into the threaded hole to fix the gasket 7. The gasket 7 cooperates with the shaft sleeve 6, that is, the annular boss 104 to form a second limiting groove, and the second bearing 302 is arranged in the second limiting groove.

[0045] In this embodiment, the provision of the first limiting groove and the second limiting groove can not only fix the position of the first bearing 301 and the second bearing 302 relative to the shaft 201, and prevent the first bearing 301 and the second bearing 302 from axially sliding on the rotating shaft 2, but also fix the position of the rotating shaft 2 in the accommodating cavity 101 through the limiting cooperation of the first bearing 301 and the second bearing 302 with the annular boss 104, and prevent the rotating shaft 2 from axially sliding in the accommodating cavity 101, thereby playing a dual fixing role.

[0046] However, the above structure encountered certain problems during the actual assembly, because the annular boss 104 is provided in the sleeve 1, so that the second bearing 302 will be stuck on the annular boss 104 when entering from the first opening 102, and the entire shaft 201 cannot be inserted into the accommodating cavity 101. For this reason, referring to Figure 2 and Figure 3As shown, when the present embodiment adopts dual bearings 3 to support the shaft 201, a second opening 103 communicating with the accommodating chamber 101 is further provided at the other end of the sleeve 1 corresponding to the first opening 102; when assembling the bearing 3 structure of the present embodiment, only the first bearing 301 is passed through the shaft 201, and the position of the first bearing 301 is limited by the sleeve 6 and the annular step on the shaft 201. The second bearing 302 is removed from the shaft 201, and the shaft 201 and the first bearing 301 are inserted into the accommodating chamber 101 from the first opening 102, so that the end of the first bearing 301 abuts against the annular boss 104. Then, the second bearing 302 enters from the second opening 103, and the second bearing 302 is sleeved on the shaft 201, so that the end of the second bearing 302 is squeezed and contacted with the sleeve 6 and the annular step, and then the gasket 7 is fixed to limit the other end of the second bearing 302, thereby fixing the position of the second bearing 302.

[0047] In this embodiment, the rotating shaft 2 does not need to pass through the second opening 103 , so the second opening 103 can be blocked by disposing the bottom plate 8 at the second opening 103 .

[0048] It should be noted that, in other embodiments, if only a single bearing 3 is provided to support the shaft 201 , the bearing 3 can be installed from the first opening 102 , and there is no need to provide the second opening 103 , that is, the other side of the sleeve 1 is a closed end.

[0049] As mentioned above, in this embodiment, in order to meet the requirements of the transfer of the bearing 3 and the shaft 201, the end cover 4 and the bottom plate 8 are detachably fixed to the first opening 102 and the second opening 103 by bolts. Since it is a detachable connection, there must be a certain gap at the connection, and water vapor can easily enter the accommodating cavity 101 through these gaps. For this reason, referring to Figure 2 As shown, a second sealing ring 9 is provided between the end cover 4 and the first opening 102 , and between the bottom plate 8 and the second opening 103 . The second sealing ring 9 seals the gaps at the connection points to prevent water vapor from entering.

[0050] Specifically, in this embodiment, in order to fix the second sealing ring 9, semicircular grooves are provided at the end of the sleeve 1, the side of the end cover 4 facing the sleeve 1, and the side of the bottom plate 8 facing the sleeve 1. After the end cover 4 and the bottom plate 8 are spliced with the sleeve 1, the two semicircular grooves are snapped together to form an accommodating space for the second sealing ring 9.

[0051] Reference Figure 1As shown, the waterproof wire remover of this embodiment also includes a support frame 10, which includes a support rod and a buckle that is buckled on the support rod. The sleeve 1 is fixed between the support rod and the buckle. The sleeve 1 can be fixed by the support frame 10 to fix the sleeve 1 in a specified position.

[0052] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A waterproof wire remover, characterized in that: include: A sleeve, wherein the sleeve has an accommodating cavity, and a first opening is provided on one side of the accommodating cavity; The rotating shaft includes a shaft, a portion of the shaft is inserted into the accommodating cavity through the first opening, another portion of the shaft protrudes from the first opening out of the accommodating cavity, and a wire-digging portion and a water-blocking portion are provided on the portion of the shaft protruding from the accommodating cavity; A bearing is disposed in the accommodating cavity, the bearing is sleeved outside the shaft, and the bearing is used to support the rotation of the shaft; an end cover, disposed at the first opening of the sleeve, the end cover having a through hole for the rotating shaft to pass through, the water retaining portion being disposed in the through hole; The first sealing ring is arranged between the end cover and the water retaining portion, and the first sealing ring blocks the gap between the end cover and the water retaining portion.

2. The waterproof wire remover according to claim 1, characterized in that: The side of the water retaining portion facing the sleeve is a plane, and the side of the water retaining portion facing away from the sleeve is an inclined surface, and the inclined surface is inclined from the first opening toward the accommodating cavity.

3. The waterproof wire remover according to claim 1, characterized in that: The diameter of the water retaining portion is larger than the diameter of the first opening.

4. The waterproof wire remover according to claim 1, characterized in that: The rotating shaft is integrally formed.

5. The waterproof wire remover according to claim 1, characterized in that: A first bearing and a second bearing are provided in the accommodating cavity, a shaft sleeve is provided between the first bearing and the second bearing, and an annular boss for clamping the first bearing and the second bearing is provided on the inner wall of the sleeve corresponding to the shaft sleeve; The first bearing is arranged near the first opening, an annular step is arranged on the shaft, the annular step cooperates with the shaft sleeve and the annular boss to form a first limiting groove, and the first bearing is arranged in the first limiting groove; The second bearing is arranged at the end of the shaft rod. A gasket is arranged at the end of the shaft rod. The gasket cooperates with the shaft sleeve and the annular boss to form a second limiting groove. The second bearing is arranged in the second limiting groove.

6. The waterproof wire remover according to claim 1, characterized in that: A second opening is provided on the other side of the accommodating cavity corresponding to the first opening, and a bottom plate is provided at the second opening to block the second opening.

7. The waterproof wire remover according to claim 6, characterized in that: The end cover and the bottom plate are both detachably fixed at the first opening and the second opening by bolts.

8. The waterproof wire remover according to claim 6, characterized in that: A second sealing ring is provided between the end cover and the first opening, and between the bottom plate and the second opening.

9. The waterproof wire remover according to claim 1, characterized in that: An annular groove is provided on the inner side wall of the end cover. The annular groove is arranged on the outer periphery of the water retaining portion. The first sealing ring is embedded in the annular groove and protrudes from the annular groove.

10. The waterproof wire remover according to claim 1, characterized in that: It also includes a support frame, which includes a support rod and a buckle that is buckled on the support rod, and the sleeve is fixed between the support rod and the buckle.

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