CN214124726U

CN214124726U - Threading leakage-stopping device and threading leakage-stopping integrated device

Info

Publication number: CN214124726U
Application number: CN202120162721.8U
Authority: CN
Inventors: 朱超; 李敏; 郝振; 陈树宽
Original assignee: Yanan Thermal Power Plant Of Datang Shaanxi Power Generation Co ltd
Current assignee: Yanan Thermal Power Plant Of Datang Shaanxi Power Generation Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-09-03
Anticipated expiration: 2031-01-21

Abstract

The threading leakage stopping device comprises a threading pipe (1) and a locking nut (2), wherein a conical cavity (3) is formed in the threaded end of the threading pipe (1), the threading leakage stopping device further comprises a conical rubber plug (4) matched with the conical cavity (3), the conical rubber plug (4) is divided into more than 2 pieces, semicircular holes (7) with corresponding number are formed in the parting surfaces of the adjacent 2 pieces of the rubber plug (4) in parallel according to the number of wires required to pass through, and the semicircular holes (7) between the adjacent 2 pieces of the conical rubber plug (4) form threading holes (15) through which power supply wires pass; the utility model discloses with toper plug (4) simple structure, convenient operation, the effect of stifled oil leak-stopping is better.

Description

Threading leakage-stopping device and threading leakage-stopping integrated device

Technical Field

The utility model relates to a seepage device is ended in threading is a device that is used for preventing built-in oil from drawing forth hole to external seepage from the electric wire when various sensor electric wires are drawn forth in various mechanical equipment such as steam turbine, pump machine.

Background

Various sensors are installed in various mechanical equipment such as a steam turbine, a pump machine and the like, and the various sensors are connected with an instrument outside the machine through wires to transmit various parameters. Because the internal environment often has oil in various states, when the electric wire is led out, the oil in the machine can leak to the outside of the machine from the electric wire leading-out hole, thereby not only polluting the external environment, but also causing serious potential safety hazards such as fire and the like. In order to prevent oil in the machine from leaking to the outside of the machine from the wire leading-out hole, the prior technical means is to apply adhesive to the joint, so that the adhesive needs to be removed during each overhaul, and the adhesive needs to be applied again after the overhaul, which is troublesome. The recent prior art adopts a threading to end leakage device, and this kind of threading ends leakage device and includes the mount pad, sets up a plurality of O type sealing washer superposes in the mount pad and is in the same place, and the electric wire passes from the hole of O type sealing washer, and O type sealing washer top is equipped with closing device. Chinese patent document CN205882611U discloses a threading leakage-stopping superposition device, which is the threading leakage-stopping device. When the O-shaped sealing ring is subjected to external pressure, the expansion inner circle shrinks to prevent leakage. However, the threading leakage-stopping device has more components, a plurality of superposed O-shaped sealing rings are in a stressed state for a long time and in an oil stain environment, and are easy to damage, short in service life, generally only capable of using one overhaul period, and need to be replaced during each overhaul, so that the manufacturing cost and the use cost are both high. When more troublesome change at every turn, the electric wire need pass a plurality of superimposed O type sealing washers, and the electric wire that if need pass is very long troublesome, can seriously abrade the O type sealing washer circle moreover and influence its cohesion leakproofness to the electric wire to influence its and stop the seepage effect.

Chinese patent document CN208272555U discloses a threading leakage-stopping device and a threading leakage-stopping gathering device, which uses a conical rubber plug to replace a plurality of stacked O-shaped sealing rings in the prior art. Compared with CN205882611U, this scheme has simple structure, long service life, and convenient operation, preparation and use cost are lower, and the electric wire need not pass the threading and ends leakage device again when overhauing later or changing the toper plug, as long as associate with division toper plug can. However, because the wires which are penetrated through the anti-leakage cable are still integrated together and penetrate through the threading holes, oil still leaks out of the machine from gaps among the integrated wires, and the anti-leakage requirement of occasions with high anti-leakage requirements cannot be met. In addition, the associate with operation of opening the cone-shaped plug is not very convenient because of the small radius cutting slit.

Disclosure of Invention

The utility model aims to solve the technical problem that to above-mentioned technical current situation, provide one kind and end the seepage effect better, the more convenient threading of threading operation ends the seepage device.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a threading leakage-stopping device comprises a threading pipe and a locking nut, wherein one end of the threading pipe is a threaded end, the threaded end is provided with an external thread matched with an internal thread of the locking nut, and the other end of the threading pipe is an installation fixed end; the wire threading pipe is characterized in that a threaded end of the wire threading pipe is provided with a conical cavity, and the outer end of the caliber of the conical cavity is large and the inner end of the conical cavity is small; the leakage device is stopped in threading still include with the toper plug that the toper chamber matches was made by organic elastic material, the burst more than 2 is cut apart into to the toper plug, sets up corresponding quantity's semicircle orifice side by side according to the electric wire radical that required passed respectively at the die joint of adjacent 2 bursts, and the semicircle orifice between each adjacent 2 of amalgamation back toper plug forms the through wires hole that the power supply line passed.

The following is the utility model discloses the further scheme of seepage device is stopped in the threading.

The conical rubber plug comprises a conical stuffing section for stuffing the conical cavity of the threading pipe and a cylindrical exposed section with the outer diameter larger than that of the conical cavity of the threading pipe.

The tapered rubber plug consists of 2 pieces 1/2 of tapered split which are half-split, and the tapered rubber plug is formed by wrapping 2 pieces 1/2 of tapered split.

The conical rubber plug consists of 3 conical sheets 1/3 which trisect the conical rubber plug, and the conical rubber plug is formed by wrapping 3 conical sheets 1/3.

The tapered rubber plug consists of 4 conical sheets 1/4 which are used for quartering the tapered rubber plug, and the tapered rubber plug is formed by cohesion of 4 conical sheets 1/4.

A perforated cap is formed at the upper end of the locking nut, and a cap hole is formed in the perforated cap.

The cap hole of the perforated cap at the upper end of the locking nut is also provided with an internal thread; the leakage device is stopped in threading still includes fixed cover, fixed cover has seted up the cover hole, and fixed cover lower extreme sets up the section of stretching out, stretches out the section and sets up the external screw thread that matches with the cap hole internal thread of perforation cap, fixed cover is fixed with threaded connection lock nut upper end, and is close to the leakage device is stopped in threading's electric wire outside cover has the bellows of a section protection electric wire, the cover internal hole of fixed cover supplies the bellows inserts and fixes.

The utility model provides a seepage set device is ended in threading, holds carrier including the ring flange, hold carrier includes the ring flange, set up a plurality of mounting holes in the ring flange, its characterized in that, above-mentioned any kind of seepage device is ended in threading is installed to every mounting hole.

The following is the utility model discloses the threading ends the further scheme of seepage collection device.

The installation stiff end of each seepage device is stopped in threading pipe inserts the mounting hole in the ring flange, and the tight fit connection or welding or powerful glue bonding between the two, the installation stiff end of threading pipe and the bottom surface parallel and level of ring flange.

The utility model discloses the seepage device is stopped in threading replaces a plurality of superimposed O type sealing washers of prior art with the toper plug, and the structure is more simple, long service life, and it is more convenient to operate, preparation and use cost are lower. Compared with CN208272555U, because the utility model discloses the burst more than 2 is cut apart into to the toper plug, sets up the semicircle orifice of corresponding quantity side by side according to the required electric wire root that passes respectively at the die joint of adjacent 2 bursts, and the semicircle orifice between each adjacent 2 of amalgamation back toper plug forms the through wires hole that the power supply line passed. During the use, every electric wire is independently located a through wires hole separately, has eliminated the seam between the many electric wires and has leaked outside to the seam, and the electric wire leakproofness that is compressed tightly by lock nut back and passes rather than is better, so the effect of stifled oil stop leakage is better. Moreover, when the conical rubber plug is overhauled or replaced later, the electric wire does not need to pass through the threading leakage stopping device any more, does not need to open the conical rubber plug with great effort associate with, and only needs to separate or fold the sub-pieces of the conical rubber plug without great effort, so that the electric wire is very convenient.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the threading leakage stop device of the present invention;

fig. 2 is a schematic perspective view of a second embodiment of the threading leakage stop device of the present invention;

fig. 3 is a schematic view of the assembly of the threading leakage stop device of the present invention;

FIG. 4 is a perspective view of the threading tube;

FIG. 5 is a cross-sectional view of the threading tube;

FIG. 6 is a perspective view of the locking nut;

FIG. 7 is a schematic bottom view of the locking nut;

FIG. 8 is a schematic perspective view of a conical rubber plug formed by wrapping two halves of a half-cut material;

FIG. 9 is an inverted perspective view of the conical rubber plug formed by two halves of the half-cut rubber plug being clasped together;

FIG. 10 is a perspective view of a half cone-shaped rubber plug and its parting surface;

fig. 11 is a schematic perspective view of a cone-shaped rubber plug formed by wrapping 3 sheets 1/3 cone-shaped sheets;

fig. 12 is a schematic perspective view of a cone-shaped rubber plug formed by wrapping 4 sheets 1/4 cone-shaped sheets;

fig. 13 is a perspective view of the fixing sleeve;

fig. 14 is a schematic bottom view of the harness;

fig. 15 is a perspective view of the carrier of the threading leakage-stopping gathering device of the present invention;

fig. 16 is a perspective view of the threading leakage-stopping collecting device of the present invention.

Detailed Description

Hereinafter, a specific embodiment of the present invention will be described with reference to fig. 1 to 16.

A threading leakage-stopping device comprises a threading pipe 1 and a locking nut 2, wherein one end of the threading pipe 1 is a threaded end, the threaded end is provided with an external thread matched with an internal thread of the locking nut 2, and the other end of the threading pipe 1 is an installation fixed end; the threading pipe is characterized in that a conical cavity 3 is formed at the threaded end of the threading pipe 1, and the outer end of the caliber of the conical cavity 3 is large and the inner end is small; the threading leakage-stopping device also comprises a conical rubber plug 4 which is matched with the conical cavity 3 and is made of organic elastic materials, the conical rubber plug 4 is divided into more than 2 pieces, semicircular holes 7 with corresponding quantity are respectively arranged on the parting surfaces of the adjacent 2 pieces of rubber plug in parallel according to the number of electric wires required to pass through, and the semicircular holes 7 between the adjacent 2 pieces of rubber plug 4 form threading holes 15 for the power supply wires to pass through after splicing.

Example one

As shown in fig. 1, a threading leakage-stopping device comprises a threading pipe 1 and a locking nut 2, as shown in fig. 4 and 5, one end of the threading pipe 1 is a threaded end, the threaded end is provided with an external thread matched with an internal thread of the locking nut 2, the length of the external thread section of the threading pipe is longer than that of the internal thread section of the locking nut 2, and the other end of the threading pipe 1 is a mounting fixed end; the threaded end of the threading pipe 1 is provided with a conical cavity 3, and the outer end of the caliber of the conical cavity 3 is large and the inner end is small; the threading leakage-stopping device also comprises a conical rubber plug 4 which is matched with the conical cavity 3 and is made of organic elastic materials, as shown in figures 8 and 9, the center of the conical rubber plug 4 is provided with a threading hole 15 through which a power supply line passes, and the conical rubber plug 4 is plugged into the conical cavity 3 of the threading pipe 1 during installation. The components can be seen in fig. 3. The organic elastic material for manufacturing the conical rubber plug 4 is preferably selected from fluororubber, and certainly, nitrile rubber, silica gel and the like can also be selected. The threading pipe 1 and the locking nut 2 can be made of metal.

As shown in fig. 8 and 9, the conical rubber plug 4 comprises a conical insertion section 5 for inserting into the conical cavity 3 of the threading tube 1, and a cylindrical exposed section 6 with an outer diameter larger than the conical cavity 3 of the threading tube 1. As shown in fig. 8, 9 and 10, the conical rubber plug 4 is composed of 2 conical sheets 1/2 bisecting the conical rubber plug 4, that is, the conical rubber plug 4 is formed by wrapping 2 conical sheets 1/2. When the electric wire twisting device is used, each electric wire is respectively embedded into the semicircular hole 7 on the parting surface of one half of the conical rubber plug, and the other half of the conical rubber plug is clasped with the electric wire, no matter how long the electric wire is, the operation is irrelevant to the length of the electric wire.

As shown in fig. 6 and 7, a perforated cap 8 is formed at the upper end of the locking nut 2, and the conical rubber plug 4 can be pressed by screwing down the locking nut 2; a cap hole 9 is opened in the perforated cap 8 for passing a power supply wire.

The method comprises the following steps: 1. the electric wire is passed through the threading pipe 1 and the lock nut 2. 2. The 2 pieces 1/2 of the conical rubber plug 4 are separated into conical pieces, each wire is respectively embedded into the semicircular hole 7 on the parting surface of one half of the conical rubber plug, and the other half of the conical rubber plug is clasped. 3. The conical rubber plug 4 is plugged into the conical cavity 3 of the threading tube 1. 4. The locking nut 2 is screwed down at the thread end of the threading pipe 1 to press the conical rubber plug 4, so that the conical rubber plug 4 is forced to seal the electric wire at the corresponding position.

As shown in fig. 2, a fixing sleeve 10 can be added, and the cap hole 9 of the through cap 8 at the upper end of the locking nut 2 is also provided with an internal thread; the threading leakage-stopping device further comprises a fixing sleeve 10, a sleeve inner hole 14 is formed in the fixing sleeve 10, an extending section 11 is arranged at the lower end of the fixing sleeve 10, an external thread matched with the internal thread of the cap hole 9 of the perforating cap 8 is formed in the extending section 11, and the fixing sleeve 10 is fixed at the upper end of the locking nut 2 in a threaded connection mode.

Since the electric wire adjacent to the threading leakage-stopping device is more easily damaged when being bent, a corrugated pipe for protecting the electric wire is usually sleeved outside the electric wire adjacent to the threading leakage-stopping device, a fixing sleeve 10 can be additionally arranged on the threading leakage-stopping device, and the inner hole 14 of the fixing sleeve 10 can be used for inserting and fixing the corrugated pipe.

When in use, the following steps are added after the steps: 5. the fixing sleeve 10 is fixed on the upper end of the lock nut 2 in a threaded connection, and the end of the corrugated pipe outside the electric wire is plugged into the cap hole 9 of the fixing sleeve 10.

Example two

The second embodiment is different from the first embodiment in the setting of the parting surface of the conical rubber plug 4, and the first embodiment is adopted in all the other embodiments.

As shown in fig. 11, the conical rubber plug 4 is composed of 3 conical sheets 1/3 trisecting the conical rubber plug 4, that is, the conical rubber plug 4 is formed by wrapping 3 conical sheets 1/3.

The method comprises the following steps: 1. the electric wire is passed through the threading pipe 1 and the lock nut 2. 2. The 3 pieces 1/3 of the conical rubber plug 4 are separated, each wire is respectively embedded into a semicircular hole 7 on the parting surface of the 1/3 conical piece, and then the adjacent 1/3 conical pieces are clasped. 3. The conical rubber plug 4 is plugged into the conical cavity 3 of the threading tube 1. 4. The locking nut 2 is screwed down at the thread end of the threading pipe 1 to press the conical rubber plug 4, so that the conical rubber plug 4 is forced to seal the electric wire at the corresponding position.

EXAMPLE III

In the third embodiment, the parting surface of the conical rubber plug 4 is different from that of the first embodiment or the second embodiment, and all the others are adopted in the first embodiment or the second embodiment.

The conical rubber plug 4 consists of 4 conical sheets 1/4 which are used for quartering the conical rubber plug 4, namely, the conical rubber plug 4 is formed by wrapping 4 conical sheets 1/4.

Example four

As shown in fig. 13, the third embodiment is a threading leakage prevention assembly device, which includes a bearing member as shown in fig. 12, the bearing member includes a flange 12, a plurality of mounting holes 13 are provided in the flange 12, and any one of the threading leakage prevention devices is mounted in each mounting hole 13. The installation fixed end of each threading leakage-stopping device threading pipe 1 is inserted into an installation hole 13 in the flange 12, the threading pipes are tightly connected or welded or bonded by strong glue, and the installation fixed end of each threading leakage-stopping device threading pipe 1 is flush with the bottom surface of the flange 12.

Claims

1. A threading leakage-stopping device comprises a threading pipe (1) and a locking nut (2), wherein one end of the threading pipe (1) is a threaded end, the threaded end is provided with an external thread matched with an internal thread of the locking nut (2), and the other end of the threading pipe (1) is an installation fixed end; the wire threading pipe is characterized in that a conical cavity (3) is formed at the threaded end of the wire threading pipe (1), and the outer end of the caliber of the conical cavity (3) is large and the inner end is small; the seepage device is stopped in threading still include with toper chamber (3) match conical rubber stopper (4) made by organic elastic material, burst more than 2 is cut apart into in conical rubber stopper (4), sets up corresponding quantity's semicircle orifice (7) side by side according to the electric wire root that required passed respectively at the die joint of adjacent 2 burst, and semicircle orifice (7) between each adjacent 2 of amalgamation back conical rubber stopper (4) form through wires hole (15) that the power supply line passed.

2. Threading leakage prevention device according to claim 1, characterized in that the conical rubber plug (4) comprises a conical insertion section (5) for insertion into the conical cavity (3) of the threading tube (1) and a cylindrical exposed section (6) having an outer diameter larger than the conical cavity (3) of the threading tube (1).

3. The threading leakage stop device according to claim 1, wherein the conical rubber plug (4) is composed of 2 conical segments 1/2 bisecting the conical rubber plug (4), and the conical rubber plug (4) is embraced by 2 conical segments 1/2.

4. The threading leakage stop device according to claim 1, wherein the conical rubber plug (4) is composed of 3 conical segments 1/3 trisecting the conical rubber plug (4), and the conical rubber plug (4) is clasped by 3 conical segments 1/3.

5. The threading leakage stop device according to claim 1, wherein the conical rubber plug (4) is composed of 4 conical segments 1/4 which are used for quartering the conical rubber plug (4), and the conical rubber plug (4) is formed by wrapping 4 conical segments 1/4.

6. Threading leakage stop device according to claim 1, characterized in that the upper end of the locking nut (2) forms a perforated cap (8), and a cap hole (9) is arranged in the perforated cap (8).

7. The threading leakage stop device according to claim 6, characterized in that the cap hole (9) of the upper end piercing cap (8) of the locking nut (2) is also internally threaded; the threading leakage stopping device further comprises a fixing sleeve (10), a sleeve inner hole (14) is formed in the fixing sleeve (10), a stretching section (11) is arranged at the lower end of the fixing sleeve (10), an external thread matched with an internal thread of a cap hole (9) of the through hole cap (8) is formed in the stretching section (11), and the fixing sleeve (10) is fixed to the upper end of the locking nut (2) in a threaded connection mode.

8. A string leak-stopping manifold comprising a carrier member including a flange (12), a plurality of mounting holes (13) being provided in the flange (12), characterized in that each mounting hole (13) is fitted with a string leak-stopping device as claimed in any one of claims 1 to 7.

9. The leak-stopping threading assembly according to claim 8, wherein the fixed end of the threading pipe (1) of each leak-stopping threading device is inserted into the mounting hole (13) of the flange (12) and is tightly connected or welded or bonded by strong glue, and the fixed end of the threading pipe (1) is flush with the bottom surface of the flange (12).