CN210325367U - Composite insulator for electrified railway contact net - Google Patents

Abstract

The utility model discloses a composite insulator for an electrified railway contact net, which mainly comprises a left connecting seat, a mainboard, a core rod, a right connecting seat, a pressing frame, a limiting part and a cutting sleeve, wherein the left end and the right end of the core rod are provided with screw heads, the outer wall of the screw head positioned at the left part of the core rod is screwed with the left connecting seat, the left end of the left connecting seat is fixedly provided with a rotating frame, the inner side of the left part of the rotating frame is provided with a cross hole, the rotating frame is positioned in the cross hole and is provided with the limiting part in a penetrating way, and a bolt is; the mainboard edge fixed mounting has the assembly seat of symmetry setting, and the through-hole has been seted up at assembly seat middle part, mainboard right side fixed mounting has the mount of symmetry setting. The utility model has the advantages of reasonable design structurally, this device adopts the crimping assembly mode, and the life and the intensity of device are guaranteed to the assembly stability and the mechanical rigidity of self of maximum protection plug and metalwork, and this device structure is nimble stable, convenient assembling.

Description

Composite insulator for electrified railway contact net

Technical Field

The utility model relates to an insulator specifically is a composite insulator for electronic railway connecting net.

Background

The composite insulator is favored by the industry because of the great superiority of the composite insulator in the aspects of weight, zero value, pollution flashover voltage and the like compared with a porcelain insulator, and particularly has the characteristic of high pollution flashover voltage. Researches find that a certain relation exists between the shed structure and the pollution flashover voltage of the composite insulator, so that the pollution flashover voltage of the composite insulators with the same other conditions and different shed structures is different. The isodiametric umbrella structure is not conducive to inhibiting inter-umbrella arc bridging caused by continuous water films and water flow, and therefore has poor overall performance. The influence of the umbrella diameter on the pollution flashover characteristic of the composite insulator is as follows: when the diameter of the umbrella is increased, the equivalent diameter of the composite insulator is increased, the pollution flashover characteristic is negatively affected, excessive materials are consumed due to the excessively large diameter of the umbrella, and economic benefits are not realized; the leakage distance is insufficient when the diameter of the umbrella is too small, so the first principle of selecting the diameter of the umbrella is to select the diameter of the umbrella with economic benefit on the premise of ensuring that the leakage distance of the whole insulator is met.

The existing insulator mostly adopts an equal-diameter umbrella skirt, and the overall performance is poor; during production, the metal piece and the core rod are fixed together by adopting a punching and pin joint mode, the tensile crack resistance of the core rod is inevitably reduced, the strength of the core rod is limited when a power transmission line or a contact net is hoisted, and the assembly stability and flexibility are greatly reduced and the use is inconvenient because the structure is simple and crude.

Disclosure of Invention

An object of the utility model is to provide a composite insulator for electronic railway connecting net to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a composite insulator for an electrified railway contact net mainly comprises a left connecting seat, a main board, a core rod, a right connecting seat, a pressing frame, limiting parts and a clamping sleeve, wherein thread heads are arranged at the left end and the right end of the core rod; mainboard edge fixed mounting has the assembly seat that the symmetry set up, and the through-hole has been seted up at assembly seat middle part, mainboard right side fixed mounting has the mount that the symmetry set up, two the lateral wall that the mount corresponds each other fixed mounting has the connecting rod respectively, two fixed mounting has the cutting ferrule between the connecting rod, and the cutting ferrule middle part is provided with the perforation, the bolt runs through the cutting ferrule via the perforation, is located the plug right part the nipple outer wall connects soon and installs the right side even seat, and the right side is even a right-hand member welded mounting has the clamp plate, and the clamp plate right-hand member is installed through the bolt crimping and is pressed the frame, plug, left side even seat and right side are even a seat outer wall cover and are established and are.

As a further aspect of the present invention: the locating part includes screw ring and bayonet lock, screw ring outer wall fixed mounting has the bayonet lock. The shapes of the threaded ring and the bayonet lock are matched with the shape of a cross hole in the rotating frame.

As a further aspect of the present invention: the outer walls of the left connecting seat and the right connecting seat, which are positioned at the assembly position of the core rod, are provided with hoops in a pressing mode, and the inner walls of the hoops are in close contact with the outer walls of the left connecting seat and the right connecting seat.

As a further aspect of the present invention: and the right side wall of the pressing plate and the left side wall of the pressing frame are surrounded to form a cross-shaped assembling groove.

As a further aspect of the present invention: the upper end and the lower end of the clamping sleeve are provided with clamping grooves which are arranged at equal intervals, and the sizes of the clamping grooves are matched with the shapes of the clamping pins.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages of reasonable design structurally, this device adopts the crimping assembly mode, and the life and the intensity of device are guaranteed to the assembly stability and the mechanical rigidity of self of maximum protection plug and metalwork, and this device structure is nimble stable, convenient assembling.

Drawings

Fig. 1 is a schematic structural diagram of a composite insulator for an electrified railway contact network.

Fig. 2 is a structural schematic diagram of a right view angle of a composite insulator medium-voltage frame for an electrified railway contact network.

Fig. 3 is a schematic structural view of a bottom view angle among a main board, a left connecting board, a rotating frame and a fixing frame of the composite insulator for the overhead contact system of the electrified railway.

Fig. 4 is a schematic structural diagram of a right view angle among a main board, a fixing frame, a connecting rod and a clamping sleeve in the composite insulator for the overhead contact system of the electrified railway.

Fig. 5 is a schematic position diagram of a front view angle between a bayonet lock and a threaded ring in the composite insulator for the contact network of the electrified railway.

In the figure: the umbrella fixing device comprises a left connecting seat 1, a rotating frame 2, a main board 3, an assembling seat 4, a fixing frame 5, a threaded head 6, a core rod 7, a short umbrella disc 8, an insulating sleeve 9, a right connecting seat 10, an assembling groove 11, a pressing frame 12, a pressing plate 13, a long umbrella disc 14, a hoop 15, a threaded ring 16, a clamping pin 17, a bolt 18, a connecting rod 19, a clamping groove 20 and a clamping sleeve 21.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment of the present invention, a composite insulator for an electric railway contact system mainly includes a left connecting seat 1, a main board 3, a core rod 7, a right connecting seat 10, a pressing frame 12, a limiting member and a ferrule 21, wherein screw heads 6 are disposed at left and right ends of the core rod 7, a left connecting seat 1 is rotatably mounted on an outer wall of the screw head 6 located at a left portion of the core rod 7, a rotating frame 2 is fixedly mounted at a left end of the left connecting seat 1, a cross hole is disposed on an inner side of a left portion of the rotating frame 2, the limiting member is disposed in the cross hole of the rotating frame 2, and a bolt 18 is penetratingly connected between the two limiting; 3 edge fixed mounting of mainboard has the assembly seat 4 that the symmetry set up, and the through-hole has been seted up at assembly seat 4 middle part, 3 right side fixed mounting of mainboard has the mount 5 that the symmetry set up, two the lateral wall that 5 mutual correspondences of mount has connecting rod 19, two fixed mounting has cutting ferrule 21 between the connecting rod 19, and cutting ferrule 21 middle part is provided with the perforation, bolt 18 runs through cutting ferrule 21 via the perforation, is located the plug 7 right part the 6 outer walls of nipple connect soon and install the even seat 10 in the right side, and the even seat 10 right-hand member welding in the right side installs clamp plate 13, and clamp plate 13 right-hand member is installed through the bolt crimping and is pressed frame 12, plug 7, even seat 1 in the left side and the even seat 10 outer wall cover in the right side are established and are installed insulating cover 9, and the insulating cover 9. The locating part includes screw ring 16 and bayonet lock 17, 16 outer walls of screw ring fixed mounting have bayonet lock 17, screw ring 16 and bayonet lock 17 appearance and the inside cross hole appearance of revolving rack 2 are mutually supported. The outer walls of the left connecting seat 1 and the right connecting seat 10, which are positioned at the assembly position of the core rod 7, are provided with the hoop 15 in a pressing mode, and the inner wall of the hoop 15 is in close contact with the outer walls of the left connecting seat 1 and the right connecting seat 10. And the right side wall of the pressing plate 13 and the left side wall of the pressing frame 12 are encircled to form a cross-shaped assembling groove 11. The upper end and the lower end of the clamping sleeve 21 are provided with clamping grooves 20 which are arranged at equal intervals, and the sizes of the clamping grooves 20 are matched with the shapes of the clamping pins 17.

The utility model discloses a theory of operation is: the utility model discloses composite insulator for electric railway contact net, during production, the thread groove forms the thread head 6 at plug 7 both ends car, through thread head 6 and left even seat 1 and right even seat 10 be assembled between/be established, later on even seat 1 and the right side of linking the seat 10 the cover establish large size metal staple bolt 15, adopt stamping forming's mode to press staple bolt 15 into the ring of little internal diameter, the suppression of the thread head 6 of even seat 1 and right even seat 10 and plug 7 is in the same place, replace traditional assembly process, the mechanical strength of maximum protection plug 7, be not fragile when using, plug 7 adopts insulating material, use in cooperation insulating cover 9, insulating effectual, and adopt the umbrella disc design of size crisscross, overcome the unable compatible contradiction of economic benefits and leakage distance that traditional equal diameter umbrella disc faced, under less cost, obtain best pollution flashover characteristic effect, the limiting part is matched with the clamping sleeve 21 in a clamping manner, the inclination angle state of the device can be adjusted during assembly, the inclination angle change cannot happen at the later stage due to dead weight and the like, the burden on a wire is avoided, and when the wire is required to be supported at an obtuse angle, the traditional insulator can only complete the support in a vertical state; the device adopts a compression joint assembly mode, the assembly stability of the core rod and the metal piece and the mechanical rigidity of the device are protected to the maximum extent, the service life and the strength of the device are ensured, and the device is flexible and stable in structure and convenient to assemble.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. A composite insulator for an electrified railway contact net mainly comprises a left connecting seat (1), a main board (3), a core rod (7), a right connecting seat (10), a pressing frame (12), limiting pieces and a clamping sleeve (21), and is characterized in that threaded heads (6) are arranged at the left end and the right end of the core rod (7), the outer wall of the threaded head (6) positioned at the left part of the core rod (7) is rotatably connected with the left connecting seat (1), a rotating frame (2) is fixedly arranged at the left end of the left connecting seat (1), a cross hole is formed in the inner side of the left part of the rotating frame (2), the limiting pieces are arranged in the cross hole of the rotating frame (2) in a penetrating manner, and a bolt (18) is connected between; the edge of the main board (3) is fixedly provided with assembling seats (4) which are symmetrically arranged, the middle part of each assembling seat (4) is provided with a through hole, the right side of the main board (3) is fixedly provided with a fixing frame (5) which is symmetrically arranged, the two side walls of the fixing frames (5) which correspond to each other are respectively and fixedly provided with connecting rods (19), a clamping sleeve (21) is fixedly arranged between the two connecting rods (19), the middle part of the clamping sleeve (21) is provided with a through hole, a bolt (18) penetrates through the clamping sleeve (21) through the through hole, the outer wall of the thread head (6) positioned at the right part of the core rod (7) is connected and provided with a right connecting seat (10) in a rotating way, the right end of the right connecting seat (10) is welded and provided with a pressing plate (13), the right end of the pressing plate (13) is provided with a, short umbrella disks (8) and long umbrella disks (14) which are arranged in a staggered mode are arranged on the outer side of the insulating sleeve (9).

2. The composite insulator for the contact net of the electrified railway as claimed in claim 1, wherein the limiting member comprises a threaded ring (16) and a bayonet lock (17), the bayonet lock (17) is fixedly installed on the outer wall of the threaded ring (16), and the shapes of the threaded ring (16) and the bayonet lock (17) are matched with the shape of a cross hole in the rotating frame (2).

3. The composite insulator for the contact net of the electrified railway as claimed in claim 1, wherein the outer walls of the left connecting seat (1) and the right connecting seat (10) at the assembly position of the core rod (7) are provided with an anchor ear (15) in a pressing manner, and the inner wall of the anchor ear (15) is tightly contacted with the outer walls of the left connecting seat (1) and the right connecting seat (10).

4. The composite insulator for the contact net of the electrified railway as claimed in claim 1, wherein the right side wall of the pressure plate (13) and the left side wall of the pressure frame (12) are surrounded to form a cross-shaped assembling groove (11).

5. The composite insulator for the contact net of the electrified railway as claimed in claim 1, wherein the upper end and the lower end of the ferrule (21) are provided with clamping grooves (20) which are arranged at equal intervals, and the size of the clamping grooves (20) is matched with the shape of the clamping pins (17).

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