CN211479918U

CN211479918U - Waterproof device of isolating switch

Info

Publication number: CN211479918U
Application number: CN202020085849.4U
Authority: CN
Inventors: 刘通
Original assignee: Hengte Electric Co ltd
Current assignee: Hengte Electric Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-09-11
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a waterproof device of an isolating switch in the technical field of isolating switch waterproofing, which comprises an isolating switch mechanism box, a transmission shaft and a detachable waterproof part, wherein the transmission shaft is connected with the output end of the isolating switch mechanism box, the penetrating joint of the top end of the isolating switch mechanism box and the transmission shaft is provided with a round platform bulge, and the transmission shaft movably penetrates through the round platform bulge, the detachable waterproof part is locked and installed on the transmission shaft, when the waterproof device is used, the waterproof device body is fixedly connected with the transmission shaft through a locking ring, an inner sleeve waterproof ring moves downwards through rotating a lifting screw rod, and then an elastic waterproof sleeve enters into a conical flaring of the conical flaring ring, and the bottom of the elastic waterproof sleeve is narrowed to be in close contact with the transmission shaft through the extrusion effect of the flaring, thereby having excellent water sealing and leakage preventing effects, and the waterproof device can play a waterproof role for the, the suitability is strong, and the workman can install by oneself as required and use.

Description

Waterproof device of isolating switch

Technical Field

The utility model relates to a waterproof technical field of isolator specifically is an isolator watertight fittings.

Background

The transformer substation often has direct current grounding defect in rainy season, causes the abnormal operation of direct current system. When the maintainer is dealing with the direct current grounding defect, the maintainer must cut off the signal power supply, check and confirm the fault point one by one, and replace. Under the influence of environmental factors, most direct current ground faults can be reset in a short time, and the positions of fault points cannot be confirmed in time, so that system risks are formed. When the causes of the defects of the type in the past year are analyzed, 7% of the causes are caused by secondary line damage, 13% of the causes are caused by secondary element faults, and 80% of the causes are affected with damp, so that the secondary system in the low-voltage isolating switch mechanism box is affected with damp, and the secondary system is a symptom frequently generated by direct current in a transformer substation in rainy season.

When the structure of the mechanism box is analyzed, the waterproof method is unreasonable, and the mechanism box is sealed by matching with a bearing between the transmission shafts. Specifically, the transmission shaft vertically and upwardly penetrates through the mechanism box body and is rotatably connected to the mechanism box body through a bearing sleeved on the transmission shaft, and the original sealing structure is realized through tight matching of the bearing. Therefore, the matching tightness between the bearing, the transmission shaft and the box body directly influences the waterproof performance of the low-voltage isolating switch.

However, the gap is large in the hard sealing rotation of the mechanism box, and the sliding friction can further cause the gap to be enlarged, rainwater can permeate into the mechanism box through the transmission shaft, so that the auxiliary contact is affected with damp, and a direct-current grounding accident occurs. The patent of some prior isolator watertight fittings is the fixed buckler that sets up on the transmission shaft, and this requires that the isolator producer just must design corresponding rigid coupling buckler according to the transmission shaft of unidimensional when production, and is very inconvenient, therefore the isolator mechanism case that actually purchases is not equipped with the buckler, designs a suitability strong at this time, and the workman can be according to the isolator waterproof accessory of demand self-installation.

Based on this, the utility model designs an isolator watertight fittings to solve the above-mentioned problem that appears.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an isolator watertight fittings to solve the problem among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a waterproof device for an isolating switch comprises an isolating switch mechanism box, a transmission shaft and a detachable waterproof piece, wherein the transmission shaft is connected to the output end of the isolating switch mechanism box;

the detachable waterproof piece comprises a locking ring, a taper hole ring, a lifting screw, an inner sleeve waterproof ring and a limiting rod, the locking ring is installed on a transmission shaft in a locking mode, the bottom end of the taper hole ring and the top end of the locking ring are fixedly welded, the lifting screw is installed on the left side of the top end of the taper hole ring in a limiting rotating mode, the limiting rod is fixedly installed on the right side of the top end of the taper hole ring, the inner sleeve waterproof ring is arranged right above the taper hole ring, the lifting screw penetrates through the inner sleeve waterproof ring in a threaded mode, the limiting rod penetrates through the inner sleeve waterproof ring in a limiting moving mode, and the lifting screw drives the inner sleeve waterproof ring to move.

Preferably, the locking ring is including rectangular shape casing, rectangular shape casing right side opening, rectangular shape casing inner chamber left side wall middle part rigid coupling has the connecting block, it has the round hole to open on the connecting block, it is connected with the bispin to the lead screw to rotate in the rectangular shape casing, bispin is to lead screw one end and is run through rectangular shape casing and be connected with the turncap, connecting block right-hand member rigid coupling has first ring, the symmetry is equipped with the thread bush on the both sides spiral of bispin to the lead screw, and the spacing slip butt of thread bush and rectangular shape casing inner wall, two symmetrical connection has the arc pole on the thread bush, the bilateral symmetry through connection has the depression bar around the first ring, the one end and the arc pole tip rigid coupling that the depression bar was kept away from each other, the one end.

Preferably, the pressing limiting block is of an arc-shaped plate-shaped structure, and a large-angle V-shaped groove is formed in the clamping surface of the arc-shaped plate-shaped structure.

Preferably, the taper hole ring comprises a second circular ring, the size of an inner hole of the second circular ring is consistent with that of an inner hole of the first circular ring, a conical flaring is arranged at the top of a center hole of the second circular ring, a mounting hole is formed in the left side of the top end of the second circular ring, and the lifting screw is mounted in the mounting hole in a limiting and rotating mode.

Preferably, the inner sleeve waterproof ring comprises a third circular ring, an elastic waterproof sleeve is fixedly connected to the inner wall of a center hole of the third circular ring, a center hole of the third circular ring extends out of the bottom end of the elastic waterproof sleeve, a threaded hole is formed in the left side of the top end of the third circular ring, and a limiting through hole is formed in the right side of the top end of the third circular ring.

Preferably, the diameter of the outer annular wall of the elastic waterproof sleeve is 4/5 which is the maximum diameter of the conical flaring.

Preferably, the elastic waterproof jacket is made of waterproof elastic rubber.

Preferably, the outer ring wall of the inner waterproof ring is fixedly sleeved with a waterproof cover.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses during the use, make watertight fittings body and transmission shaft rigid coupling through the locking ring, make endotheca waterproof ring move down through rotatory lifting screw, and then make the waterproof cover of elasticity get into in the conical flaring of conical ring, through the extrusion effect of flaring, the waterproof cover of elasticity bottom narrows and transmission shaft in close contact with, and then play good sealed leak protection water effect, this device can play the water-proof effects to the transmission shaft in the certain size interval, the suitability is strong, and the workman can install as required by oneself and use.

Drawings

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

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is a schematic view of the locking ring structure of the present invention;

fig. 5 is a schematic view of a taper hole ring structure of the present invention;

fig. 6 is a schematic view of the structural inner-sleeve waterproof ring of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-an isolating switch mechanism box, 2-a transmission shaft, 3-a circular truncated cone bulge, 4-a detachable waterproof part, 5-a locking ring, 6-a conical hole ring, 7-a lifting screw rod, 8-an inner sleeve waterproof ring, 9-a waterproof cover, 10-a limiting rod, 51-an elongated shell, 52-a connecting block, 53-a double-rotation-direction screw rod, 54-a first circular ring, 55-a threaded sleeve, 56-an arc-shaped rod, 57-a pressure rod, 58-a pressing limiting block, 61-a second circular ring, 62-a conical flaring, 63-a mounting hole, 81-a third circular ring, 82-an elastic waterproof sleeve, 83-a threaded hole and 84-a limiting through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a waterproof device for an isolating switch comprises an isolating switch mechanism box 1, a transmission shaft 2 and a detachable waterproof piece 4, wherein the transmission shaft 2 is connected to the output end of the isolating switch mechanism box 1, a circular truncated cone bulge 3 is arranged at the penetrating joint of the top end of the isolating switch mechanism box 1 and the transmission shaft 2, the transmission shaft 2 movably penetrates through the circular truncated cone bulge 3, and the detachable waterproof piece 4 is installed on the transmission shaft 2 in a locking mode;

the detachable waterproof piece 4 comprises a locking ring 5, a taper hole ring 6, a lifting screw 7, an inner sleeve waterproof ring 8 and a limiting rod 10, the locking ring 5 is installed on the transmission shaft 2 in a locking mode, the bottom end of the taper hole ring 6 and the top end of the locking ring 5 are welded and fixed, the lifting screw 7 is installed on the left side of the top end of the taper hole ring 6 in a limiting rotating mode, the limiting rod 10 is fixedly installed on the right side of the top end of the taper hole ring 6, the inner sleeve waterproof ring 8 is arranged right above the taper hole ring 6, the lifting screw 7 penetrates through the inner sleeve waterproof ring 8 in a threaded mode, the limiting rod 10 penetrates through the inner sleeve waterproof ring 8 in a limiting moving mode, and the lifting screw 7.

Further, the locking ring 5 comprises a long strip-shaped shell 51, the right side of the long strip-shaped shell 51 is provided with an opening, the middle part of the left side wall of the inner cavity of the long strip-shaped shell 51 is fixedly connected with a connecting block 52, a round hole is formed in the connecting block 52, a double-rotation-direction screw rod 53 is rotatably connected in the long strip-shaped shell 51, one end of the double-rotation-direction screw rod 53 penetrates through the long strip-shaped shell 51 and is connected with a screw cap, the right end of the connecting block 52 is fixedly connected with a first circular ring 54, threaded sleeves 55 are spirally and symmetrically arranged on two sides of the double-rotation-direction screw rod 53, the threaded sleeves 55 are in limit sliding butt joint with the inner wall of the long strip-shaped shell 51, arc-shaped rods 56 are symmetrically connected on the two threaded sleeves 55, compression; the clamping action on the drive shaft 2 can be accomplished by rotating the double-handed screw 53.

Further, the pressing limiting block 58 is of an arc-shaped plate-shaped structure, and a large-angle V-shaped groove is formed in the clamping surface of the arc-shaped plate-shaped structure, so that the center of the transmission shaft is consistent with that of the annular body, and the elastic waterproof sleeve is more tightly attached after being deformed.

Further, the taper hole ring 6 comprises a second circular ring 61, the size of an inner hole of the second circular ring 61 is consistent with that of an inner hole of the first circular ring 54, a conical flaring 62 is arranged at the top of a center hole of the second circular ring 61, a mounting hole 63 is formed in the left side of the top end of the second circular ring 61, and the lifting screw 7 is mounted in the mounting hole 63 in a limiting and rotating mode.

Further, the inner waterproof ring 8 comprises a third ring 81, an elastic waterproof sleeve 82 is fixedly connected to the inner wall of a center hole of the third ring 81, a center hole of the third ring 81 extends from the bottom end of the elastic waterproof sleeve 82, a threaded hole 83 is formed in the left side of the top end of the third ring 81, and a limiting through hole 84 is formed in the right side of the top end of the third ring 81.

Further, the diameter of the outer annular wall of the elastic waterproof jacket 82 is 4/5 which is the maximum diameter of the conical flaring 62.

Furthermore, the elastic waterproof jacket 82 is made of waterproof elastic rubber, and is easy to deform by extrusion.

Furthermore, the outer ring wall of the inner sleeve waterproof ring 8 is fixedly sleeved with a waterproof cover 9, so that a drainage effect is achieved, and rainwater is prevented from entering a connecting gap between the circular truncated cone protrusion 3 and the transmission shaft 2.

When specifically implementing, make watertight fittings body and 2 rigid couplings of transmission shaft through locking ring 5, make endotheca waterproof ring 8 move down through rotatory lifting screw 7, and then make waterproof cover 83 get into conical flaring 62 of taper ring 6, through the extrusion effect of flaring, waterproof cover 83 bottom of elasticity narrows and transmission shaft 2 in close contact with, and then play good sealed leak protection water effect, this device can play the water-proof effects to the transmission shaft in certain size interval, the suitability is strong, and the workman can install the use by oneself as required.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a isolator watertight fittings, including isolator mechanism case (1), transmission shaft (2) and removable waterproof part (4), its characterized in that: the transmission shaft (2) is connected to the output end of the isolating switch mechanism box (1), a circular truncated cone bulge (3) is arranged at the penetrating connection position of the top end of the isolating switch mechanism box (1) and the transmission shaft (2), the transmission shaft (2) movably penetrates through the circular truncated cone bulge (3), and the detachable waterproof piece (4) is installed on the transmission shaft (2) in a locking mode;

the detachable waterproof piece (4) comprises a locking ring (5), a taper hole ring (6), a lifting screw (7), an inner sleeve waterproof ring (8) and a limiting rod (10), the locking ring (5) is locked and installed on the transmission shaft (2), the bottom end of the taper hole ring (6) and the top end of the locking ring (5) are welded and fixed, the lifting screw (7) is arranged on the left side of the top end of the taper hole ring (6) in a limiting and rotating way, the limiting rod (10) is fixedly arranged on the right side of the top end of the taper hole ring (6), the inner sleeve waterproof ring (8) is arranged right above the taper hole ring (6), the lifting screw (7) is in threaded connection with the inner sleeve waterproof ring (8), the limiting rod (10) limits the inner sleeve waterproof ring (8) to movably penetrate through, the lifting screw (7) rotates forward and backward to drive the inner sleeve waterproof ring (8) to move up and down along the transmission shaft (2).

2. The waterproof device for the isolating switch according to claim 1, wherein: the locking ring (5) comprises a long-strip-shaped shell (51), the right side of the long-strip-shaped shell (51) is provided with an opening, a connecting block (52) is fixedly connected to the middle of the left side wall of the inner cavity of the long-strip-shaped shell (51), a round hole is formed in the connecting block (52), a double-rotation-direction lead screw (53) is rotationally connected to the long-strip-shaped shell (51) in a rotating mode, one end of the double-rotation-direction lead screw (53) penetrates through the long-strip-shaped shell (51) and is connected with a rotating cap, a first circular ring (54) is fixedly connected to the right end of the connecting block (52), threaded sleeves (55) are symmetrically arranged on the two sides of the double-rotation-direction lead screw (53) in a spiral mode, the threaded sleeves (55) are abutted to the inner wall of the long-strip-shaped shell (51) in a limiting sliding mode, arc-shaped rods (56) are symmetrically connected, one end of the compression rod (57) close to each other is provided with a compression limiting block (58).

3. The waterproof device for the isolating switch according to claim 2, wherein: the pressing limiting block (58) is of an arc-shaped plate-shaped structure, and a large-angle V-shaped groove is formed in the clamping surface of the arc-shaped plate-shaped structure.

4. The waterproof device for the isolating switch according to claim 3, wherein: taper ring (6) are including second ring (61), the hole size of second ring (61) and first ring (54) is unanimous, the top of the centre bore of second ring (61) is equipped with circular cone type flaring (62), the top left side of second ring (61) is equipped with mounting hole (63), lifting screw (7) spacing rotation is installed in mounting hole (63).

5. The waterproof device for the isolating switch according to claim 4, wherein: the waterproof ring of endotheca (8) is including third ring (81), the inner wall rigid coupling of the centre bore of third ring (81) has waterproof cover of elasticity (82), and the bottom of waterproof cover of elasticity (82) extends third ring (81) centre bore, third ring (81) top left side is equipped with screw hole (83), third ring (81) top right side is equipped with spacing through-hole (84).

6. The waterproof device for the isolating switch according to claim 5, wherein: the diameter of the outer annular wall of the elastic waterproof sleeve (82) is 4/5 which is the maximum diameter of the conical flaring (62).

7. The waterproof device for the isolating switch according to claim 5, wherein: the elastic waterproof sleeve (82) is made of waterproof elastic rubber.

8. The waterproof device for the isolating switch according to claim 1, wherein: the outer ring wall of the inner waterproof ring (8) is fixedly sleeved with a waterproof cover (9).