CN218037488U - Oil-filled needle tube of optical unit - Google Patents

Abstract

The application relates to an oil-filled needle tubing of optical unit, it includes: the air guide part extends along the axial direction of the inner needle tube, and the air guide part is in a plane structure or a convex surface structure between the two ends of the inner needle tube in the circumferential direction; and the outer needle tube is sleeved outside part of the inner needle tube and surrounds the air guide part to form an air guide cavity, and two ends of the air guide cavity are communicated with the outside. The air guide part of the plane structure or the convex structure is formed on the inner needle tube, so that the air guide cavity can be formed between the inner needle tube and the outer needle tube, dust is not easy to accumulate when falling onto the air guide part extending out of the outer needle tube, and the dust can be blown forward or to two sides without obstacles when contacting with airflow of shielding gas, so that the dust can be smoothly separated from the surface of the inner needle tube, the possibility that the shielding gas is influenced by dust accumulation to move forward and the air guide part is caused to be deformed by heating is effectively reduced, and the production and processing quality of the stainless steel optical unit is improved.

Description

Oil-filled needle tube of optical unit

Technical Field

The application relates to the field of manufacturing and processing of optical cables, in particular to an oil-filled needle tube of an optical unit.

Background

The stainless steel optical unit is used as optical cable core components such as an OPGW optical cable, an OPPC optical cable, a submarine cable and the like, and the requirement on the manufacturing length of the stainless steel optical unit is higher and higher in application along with the development of marine communication optical cables in China in recent years. The manufacturing of the long-section stainless steel optical unit needs to ensure the welding stability for a long time, but at present, factors restricting the long-time stable production are mainly welding dust which is continuously accumulated along with the prolonging of the production time.

When the existing oil-filled needle tube is used for a long time, the accumulation of welding dust is easily caused, the welding stability is influenced, and the production of a long-section stainless steel optical unit cannot be met. Specifically, the air groove of the existing oil-filled needle tube is of a v-shaped or concave structure, dust generated by laser welding can be gradually accumulated in the v-shaped or concave groove during long-time use, the trend of shielding gas can be reversely hindered when the dust is accumulated to a certain degree, and meanwhile, the accumulated dust can cause thermal deformation of the air groove under heating, so that the stability of the laser welding can be further influenced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an oil filling needle tube of optical unit to dust can influence the problem of stainless steel optical unit processing production when accumulating to certain degree in the gas tank of oil filling needle tube among the solution correlation technique.

In order to achieve the purpose, the following technical scheme is adopted in the application:

an oil-filled needle cannula of an optical unit, comprising:

the air guide part extends along the axial direction of the inner needle tube, and the air guide part is in a plane structure or a convex surface structure between the two ends of the inner needle tube in the circumferential direction;

and the outer needle tube is sleeved outside part of the inner needle tube and surrounds the air guide part to form an air guide cavity, and two ends of the air guide cavity are communicated with the outside.

In some embodiments, the air guide portion is a convex surface structure between two ends of the inner needle tube in the circumferential direction, and the air guide portion is a convex surface curved surface, or a combination of a plurality of planes, or a combination of a convex surface curved surface and a plane.

In some embodiments, the air guide portion includes two inclined planes between two ends of the inner needle tube in the circumferential direction, and the two inclined planes are connected to form a convex ridge at the joint.

In some embodiments, the air guide is a plane structure obliquely arranged between two ends of the inner needle tube in the axial direction.

In some embodiments, the present application provides an oil-filled syringe for an optical unit, further comprising:

and one end of the vent pipe penetrates through the outer needle tube along the air guide cavity.

In some embodiments, the vent tube is movably disposed in an axial direction of the outer needle tube.

In some embodiments, a side of the vent tube adjacent to the inner needle tube covers and is attached to the air guide.

In some embodiments, the vent tube is an integrally formed and crush-deformable vent hose.

In some embodiments, the present application provides an oil-filled syringe for an optical unit, further comprising:

the needle tube fixing seat is characterized in that a mounting hole penetrates through the fixing seat, the mounting hole sequentially comprises an inner needle tube hole and an outer needle tube hole in the extending direction, the diameter of the inner needle tube hole corresponds to that of the inner needle tube, and the diameter of the outer needle tube hole corresponds to that of the outer needle tube.

In some embodiments, the fixing seat is provided with an air inlet communicated with the outer needle tube pore passage, and one end of the air guide cavity is communicated with the outside through the air inlet.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides an oil-filled needle tube of optical unit, through the air guide portion that forms planar structure or convex surface structure on with interior needle tubing, make it can and outer needle tubing between form the air guide chamber in, the dust is difficult for taking place the accumulation when falling to the air guide portion that stretches out outer needle tubing on, can be when contacting protective gas's air current, accessible forward or blow away to both sides, and then break away from interior needle tubing surface smoothly, realize effectively reducing the dust accumulation and influence protective gas and walk to and lead to the possibility of air guide portion thermal deformation, the production processingquality of stainless steel optical unit has been improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall structure of an oil-filled needle tube of an optical unit according to an embodiment of the present disclosure;

FIG. 2 is a radial cross-sectional view of an oil-filled syringe of an optical unit provided in accordance with an embodiment of the present invention;

fig. 3 is a radial cross-sectional view of an oil-filled syringe of an optical unit according to a second embodiment of the present application.

In the figure:

1. an inner needle tube; 10. an air guide part; 100. an oblique plane; 101. a raised ridge;

2. an outer needle tube;

3. a gas-conducting cavity;

4. a breather pipe;

5. a stainless steel tube; 50. laser welding a processing point;

6. a fixed seat; 60. an inner needle tube pore channel; 61. an outer needle cannula bore; 62. an air inlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.

When the existing oil-filled needle tube is used for a long time, the accumulation of welding dust is easily caused, the welding stability is influenced, and the production of a long-section stainless steel optical unit cannot be met. Specifically, the air groove of the existing oil-filled needle tube is of a v-shaped or concave structure, dust generated by laser welding can be gradually accumulated in the v-shaped or concave groove during long-time use, the trend of shielding gas can be reversely hindered when the dust is accumulated to a certain degree, and meanwhile, the accumulated dust can cause thermal deformation of the air groove under heating, so that the stability of the laser welding can be further influenced. The application provides an oil-filled needle tube of optical unit to solve the problem that the dust can influence stainless steel optical unit processing production when accumulating to certain degree in the gas tank of oil-filled needle tube.

The embodiment of the application provides an oil-filled needle tube of an optical unit, and the invention conception lies in that a gas guide part 10 of a plane structure or a convex structure is formed on an inner needle tube 1, so that a gas guide cavity 3 can be formed between the inner needle tube 1 and an outer needle tube 2, dust is not easy to accumulate when falling on the gas guide part 10 extending out of the outer needle tube 2, and the dust can be blown forward or to two sides without obstacles when contacting with the airflow of shielding gas, so that the dust is smoothly separated from the surface of the inner needle tube 1, the possibility that the dust accumulation influences the shielding gas flowing direction and leads the gas guide part 10 to be deformed by heat is effectively reduced, and the production and processing quality of the stainless steel optical unit is improved.

Referring to fig. 1 and 2, an oil-filled needle tube of an optical unit includes:

the air guide device comprises an inner needle tube 1, an air guide part 10 is formed on the circumferential outer wall of the inner needle tube 1, the air guide part 10 extends along the axial direction of the inner needle tube, and the air guide part 10 is of a plane structure or a convex structure between two circumferential ends of the inner needle tube 1;

and the outer needle tube 2 is sleeved outside part of the inner needle tube 1 and surrounds the air guide part 10 to form an air guide cavity 3, and two ends of the air guide cavity 3 are communicated with the outside.

Set up like this, the last air guide portion 10 that forms of inner needle tube 1 can form air guide chamber 3 with between the outer needle tube 2 in, the dust is difficult for taking place the accumulation when falling to the air guide portion 10 that stretches out outer needle tube 2 on, can be when contacting protective gas's air current, accessible blow away forward or to both sides, and then break away from inner needle tube 1 surface smoothly, realize effectively reducing the dust accumulation and influence the protective gas and walk to and lead to the possibility that air guide portion 10 is heated and is out of shape, the production processingquality of stainless steel light unit has been improved.

Wherein, the oil-filled needle tubing of the light unit that this application embodiment provided still includes:

the fixing seat 6 is provided with a mounting hole in a penetrating mode, the mounting hole sequentially comprises a hole of the inner needle tube 1 and a hole of the outer needle tube 2 in the extending direction, the diameter of the hole of the inner needle tube 1 corresponds to the diameter of the hole of the inner needle tube 1, and the diameter of the hole of the outer needle tube 2 corresponds to the diameter of the hole of the outer needle tube 2.

Furthermore, the fixed seat 6 is provided with an air inlet 62 communicated with the pore channel of the outer needle tube 2, and one end of the air guide cavity 3 is communicated with the outside through the air inlet 62.

Specifically, when the oil-filled needle tube of the optical unit provided by the application is used, the stainless steel tube 5 to be subjected to laser welding is sleeved outside the outer needle tube 2, and the laser welding processing point 50 of the stainless steel tube 5 is positioned at the top of the stainless steel tube 5; after the inner needle tube 1 extends out of the outer needle tube 2, the upper air guide part 10 is required to be positioned below the laser welding processing point 50 of the stainless steel tube 5, so that the protective gas sent out through the air guide cavity 3 can protect the laser welding processing point 50 in the ascending process.

Set up like this, realize interior needle tubing 1 and outer needle tubing 2's fixed mounting, can realize letting in protective gas in the air guide chamber 3 through air inlet 62 simultaneously, make protective gas move to laser welding processing point 50 under the 3 water conservancy diversion effects in air guide chamber, and then carry out the laser welding operation of stainless steel light unit smoothly.

Referring to fig. 2, in some possible embodiments, the air guide 10 is in a convex structure between two ends of the inner needle tube 1 in the circumferential direction, and the air guide 10 is a convex surface, or a combination of a plurality of planes, or a combination of a convex surface and a plane.

It should be noted that the air guide portion 10 is a convex structure, that is, when the air guide portion 10 is a combined surface of a plurality of planes, or when the combined surface of a convex curved surface and a plane is a combined surface, it is also required that the whole air guide portion 10 is an outward convex structure, and a concave groove structure cannot be formed thereon, so that dust falling onto the air guide portion 10 can rapidly slide off from the air guide portion 10 under the action of protective gas flow or gravity.

Referring to fig. 2, further, in some preferred embodiments, the air guide 10 includes two inclined planes 100 between two ends of the inner needle tube 1 in the circumferential direction, and the two inclined planes 100 are connected to form a ridge 101 at the joint.

In the present embodiment, the two oblique planes 100 are symmetrically disposed on two sides of the ridge 101. Furthermore, due to the convex structure formed by the two inclined planes 100 and the convex ridge 101, dust falling on the air guide part 10 can be blown off or fall off more easily, and the accumulation of welding dust on the surface of the inner needle tube 1 is effectively reduced.

Referring to fig. 1, in other preferred embodiments, the air guide 10 has a planar structure obliquely arranged between both ends of the inner needle tube 1 in the axial direction.

With the arrangement, the structural complexity of the air guide part 10 is reduced, and meanwhile, dust falling on the air guide part 10 can be blown off or fall off more easily, so that the accumulation of welding dust on the surface of the inner needle tube 1 is effectively reduced.

Referring to fig. 1, further, in some possible embodiments, the oil-filled needle tubing of the light unit further comprises:

and one end of the vent pipe 4 penetrates through the outer needle tube 2 along the air guide cavity 3.

The arrangement realizes that the protective gas can be fed into the air guide cavity 3 by the vent pipe 4, and particularly, the end part of the vent pipe 4 extends into the air guide cavity 3 through the air inlet 62 and extends out of the outer needle tube 2

In the embodiment that the air guide portion 10 is a convex structure formed by the two inclined planes 100 and the convex ridge 101, two vent pipes 4 are arranged corresponding to the two inclined planes 100 (see fig. 2), the two vent pipes 4 are respectively attached to the two inclined planes 100, and therefore when protective gas is subsequently conveyed to the laser welding processing point 50, the two vent pipes 4 can disperse dust on the two inclined planes 100, and the dust on the air guide portion 10 is further prevented from being rapidly separated; in the embodiment in which the air guide 10 is a plane structure disposed obliquely, the air guide 10 is disposed one corresponding to the plane (see fig. 3).

Optionally, the ventilation tube 4 is movably disposed in the axial direction of the outer needle tube 2.

Wherein, the vent pipe 4 is movably inserted into the air guide cavity 3 in the embodiment, and then the other end of the vent pipe 4 is moved in the air guide cavity 3 by pulling when necessary.

Set up like this, realize that operating personnel can adjust the orificial position of 4 breather pipes as required, and then all can carry out closely the blowing to the dust of the different positions on the interior needle tubing 1 in certain extent to effectively reduce the accumulation of interior needle tubing 1 surface each position dust.

Optionally, one side of the ventilation tube 4 close to the inner needle tube 1 covers and is attached to the air guide portion 10.

Wherein, one side of the air duct 4 correspondingly covers and attaches to the surface of the air guide portion 10 in this embodiment, specifically, in the embodiment where the air guide portion 10 is a convex structure formed by two inclined planes 100 and a convex ridge 101, one side of each of the two air ducts 4 respectively covers and attaches to the two inclined planes 100, thereby realizing the covering of the whole air guide portion 10; in the embodiment where the air guide 10 is a planar structure disposed obliquely, the air duct 4 is disposed to entirely cover and adhere to the planar structure of the air guide 10. Meanwhile, the other side of the vent pipe 4 is attached to and contacted with the inner wall of the outer needle tube 2, so that the vent pipe 4 is prevented from freely shaking in the air guide cavity 3 along the radial direction, and the side, attached to and contacted with the inner wall of the outer needle tube 2, of the vent pipe 4 is of an arc-shaped structure corresponding to the inner wall of the outer needle tube 2.

Alternatively, the air vent pipe 4 is an integrally formed and pressure deformable air vent hose.

By the arrangement, the vent pipe 4 can be smoothly bent and turned when being fed into the vent cavity 3 through the air inlet 62, and meanwhile, when the position of the orifice of the vent pipe 4 is adjusted, the vent pipe 4 can also be adjusted by directly pulling the vent pipe 4. In addition, the air duct 4 is convenient to carry out self-adaptive covering and attaching on the air guide part 10 after being sent into the air guide cavity 3.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in this application, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An oil-filled needle tube for an optical unit, comprising:

the air guide device comprises an inner needle tube (1), wherein an air guide part (10) is formed on the circumferential outer wall of the inner needle tube (1), the air guide part (10) extends along the axial direction of the inner needle tube, and the air guide part (10) is of a plane structure or a convex surface structure between two circumferential ends of the inner needle tube (1);

the outer needle tube (2) is sleeved outside part of the inner needle tube (1) and surrounds the air guide part (10) to form an air guide cavity (3), and two ends of the air guide cavity (3) are communicated with the outside.

2. The oil-filled needle tube of an optical unit according to claim 1, wherein the air guide (10) has a convex structure between two ends of the inner needle tube (1) in the circumferential direction, and the air guide (10) is a convex surface, or a combination of a plurality of planes, or a combination of a convex surface and a plane.

3. The oil-filled needle tube of a light unit according to claim 2, characterized in that the air guide (10) comprises two inclined planes (100) between the two ends of the inner needle tube (1) in the circumferential direction, the two inclined planes (100) being connected and forming a ridge (101) at the connection.

4. Oil-filled needle tube of a light unit according to claim 1, characterized in that the air guide (10) is of a planar construction arranged obliquely between the two ends of the inner needle tube (1) in the axial direction.

5. The oil-filled syringe of an optical unit of claim 1, further comprising:

and one end of the vent pipe (4) penetrates through the outer needle tube (2) along the air guide cavity (3).

6. Oil-filled needle tube of an optical unit according to claim 5, characterized in that the vent tube (4) is movably arranged in the axial direction of the outer needle tube (2).

7. The oil-filled needle tube of an optical unit according to claim 5, wherein the side of the vent tube (4) close to the inner needle tube (1) covers and adheres to the air guide (10).

8. The oil-filled needle tube of an optical unit according to claim 5, wherein the vent tube (4) is an integrally formed and pressure deformable vent hose.

9. The oil-filled syringe of an optical unit of claim 1, further comprising:

fixing base (6), it has seted up the installation pore to run through on it, the installation pore includes interior needle tubing (1) pore and outer needle tubing (2) pore in proper order in the extending direction, interior needle tubing (1) pore diameter corresponds interior needle tubing (1), outer needle tubing (2) pore diameter corresponds outer needle tubing (2).

10. The oil-filled needle tube of the optical unit as claimed in claim 9, wherein the fixing base (6) is provided with an air inlet (62) communicated with the pore of the outer needle tube (2), and one end of the air-guide cavity (3) is communicated with the outside through the air inlet (62).

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