CN217741123U

CN217741123U - Temporary fixing and quick connecting device for double wristarms

Info

Publication number: CN217741123U
Application number: CN202220860435.3U
Authority: CN
Inventors: 杨亭杰; 唐钜德; 施志富; 张宗忆; 曹怀来
Original assignee: China Railway 24th Bureau Group Co Ltd; Shanghai Electrification Co Ltd of China Railway 24th Bureau Group Co Ltd
Current assignee: China Railway 24th Bureau Group Co Ltd; Shanghai Electrification Co Ltd of China Railway 24th Bureau Group Co Ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-11-04
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses a double-cantilever temporary fixing quick connecting device, which is used for connecting a working cantilever and a non-working cantilever, wherein the working cantilever and the non-working cantilever comprise a flat cantilever and an inclined cantilever, the device comprises a sleeve fixing clamp and an intermediate connecting mechanism for connecting the sleeve fixing clamp and the connecting sleeve fixing clamp, the sleeve fixing clamp comprises a first rotating member and a second rotating member which are rotatably connected and matched with each other to wrap the cantilevers, a fastening connecting member for connecting the two rotating members and fastening the rotating members on the cantilevers, and a rotary twisting ring is rotatably connected on the sleeve fixing clamp; the middle connecting mechanism comprises a connecting support piece and positioning hooks which are respectively arranged at two ends of the connecting support piece and are sleeved into the rotary hinge rings at two sides correspondingly. The utility model discloses can realize the hard connection and the whole rotation function of two brachial arms, stability is good, and the quality is light, has to connect firm, the multi-angle rotates advantages such as nimble, two brachial arms are connected wantonly, are avoided the jamming, easy operation improves construction work efficiency.

Description

Temporary fixing and quick connecting device for double wristarms

Technical Field

The utility model relates to a two cantilever temporary fixation quick connecting device.

Background

With the continuous improvement of a national railway network and the gradual increase of the railway electrification rate, a new railway and an existing electrified railway are introduced to be connected, so that the large-scale transformation of the existing electrified railway is caused. Often can meet work in the electric contact net transition work progress and not receive the temporary bracket coexisting's of load phenomenon, need adopt certain mode will not receive the temporary fixed of the non-work bracket of load, avoid influencing the normal work of contact net equipment, the scheme of solving at present has three kinds:

first, the non-working bracket insulator gold utensil part that will not receive the load is fixed in the one side of keeping away from the electrified body with No. 8 iron wires and bracket base ligatures, makes this cantilever uncharged. However, in practical operation, the length of the binding force is only 0.9m, and the wind-receiving surface of each set of wrist arm is about 0.36m ² Under the wind load effect, the cantilever is easy to be deviated to the electrified part of the line side, and when the air insulation gap is not satisfied, strong current can flow to the grounded cantilever base through the iron wire, so that a contact network feeder line is tripped and a burn thread is caused, the line is broken and the network collapse accident is seriously caused, and the normal transportation procedure of the railway is disturbed.

And secondly, bundling the non-working wrist support and the working wrist support without load together by using a No. 8 iron wire to form a triangular state. Firstly, when the two wrists are bound by the iron wire, the two wrists and the iron wire are in point or line contact, the contact area is small, and potential difference easily exists to cause continuous discharge and burn equipment; secondly, the triangular framework can cause that the working bracket can not normally rotate due to rapid change of weather, so that the suspension compensation of the anchor section fails, and parameters such as joints, line switches and isolating switch leads of the anchor section do not reach the standard, thereby causing the fault of a catenary and influencing traveling.

Thirdly, 2 catenary center anchor wire clamps, 1 catenary support and 2m long auxiliary catenary of the same type are used for firmly fixing the non-working support arm through the catenary support, and then the non-working support arm is fixed on the working support force cable through the auxiliary catenary and the center anchor wire clamp respectively, so that the equipotential and fixed non-working support arm offset effects are realized. Although the fixing mode is safe and firm, the process is complicated during installation and removal, the upper clamping plate, the middle clamping plate and the lower clamping plate of each catenary center anchor clamp and all the bolts (6) need to be disassembled, the lower clamping plate and the middle clamping plate are sleeved on the working supporting force cable, the auxiliary catenary is pressed on the middle clamping plate and the upper clamping plate, the bolts and the nuts are respectively fastened in a circulating manner, the whole set of device needs about 20-30 minutes for installation or removal, and the valuable 'skylight' required by the existing catenary transition construction is definitely a waste.

In particular, the first scheme is simple and quick, but has poor reliability, and the ground trip caused by the deflection of the wrist arm frequently occurs.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a two cantilever temporary fixation quick connecting device, aim at solving the technical problem that three kinds of solutions that mention exist among the prior art, include: 1. the non-working wrist arm and the wrist arm base are not stable well by using a binding and fixing mode of iron wires, so that the problems of tripping and burning threads are easily caused; 2. the non-working bracket cantilever and the working bracket cantilever are bound by an iron wire to form a triangular framework, so that the working bracket cantilever cannot normally rotate, the compensation failure of the anchor section is caused, the pantograph-catenary fault of a contact network is caused, and the traveling is influenced; 3. the construction is complicated, the time is wasted, and the working efficiency is lower.

The technical scheme of the utility model is that: a double-cantilever temporary fixed quick connection device is used for connecting a working cantilever and a non-working cantilever, wherein the working cantilever and the non-working cantilever comprise a flat cantilever and an inclined cantilever, the device comprises sleeve fixed holding clamps used for connecting the two cantilevers respectively and an intermediate connection mechanism used for connecting the two sleeve fixed holding clamps, each sleeve fixed holding clamp comprises a first rotating piece and a second rotating piece which are rotatably connected and matched with each other to wrap the cantilever, and a fastening connection piece which is used for connecting the first rotating piece and the second rotating piece and fastening the two rotating pieces on the cantilever, and each sleeve fixed holding clamp is rotatably connected with a rotary hinge ring; the middle connecting mechanism comprises a connecting support piece and positioning hooks which are respectively arranged at two ends of the connecting support piece and are correspondingly sleeved into the rotary hinge rings at two sides; the working cantilever and the non-working cantilever can realize fixed-distance connection and integral rotation through the cooperation of the middle connecting mechanism and the fixed clasps of the sleeves at the two sides.

Further, in the utility model discloses in fastening connection spare includes connecting screw and butterfly nut, connecting screw rotates to be installed on first rotation piece or second rotation piece, the second rotates and to have the confession on piece or the first rotation piece the opening that connecting screw card was gone into, butterfly nut threaded connection is located on the connecting screw in the opening outside.

Further, the utility model discloses in first rotation piece rotates with the lower extreme of second rotation piece to be connected, connecting screw rotates the upper end of installing at first rotation piece, the upper end that the second rotated the piece is opened there the opening.

Further, in the present invention, the rotating hinge ring is installed outside the first rotating member and can rotate 360 °.

Further, in the utility model discloses in first rotation piece, second rotation piece adopt the aluminium alloy to make.

Furthermore, in the utility model, the rotary hinge ring and the positioning hook are made of aluminum alloy.

Furthermore, in the present invention, the connection support member is an aluminum alloy circular tube.

Furthermore, in the utility model, a screw thread or riveting connection structure is adopted between the connecting support piece and the positioning hook.

Compared with the prior art, the utility model has the following advantage:

1) The utility model discloses can realize the hard of a work cantilever and a non-work cantilever and connect fast, do not need specialized tool during the connection, single manual operation can accomplish fast and install and remove, and fixed close subsides, equipotential connection avoid discharging, and stability is good, avoids the tripping operation to arouse the problem of burn clue.

2) The utility model discloses can realize two cantilever bodily rotation functions after connecting, can drive the rotation of the non-work cantilever when the work cantilever is rotatory to satisfied the different angle connection problem of raising the volume and forming of the non-work cantilever, avoided because two cantilevers can not rotate and lead to the anchor section compensation to become invalid, cause the problem of contact net bow net trouble.

3) The utility model discloses a two cantilever temporary fixation quick connecting device quality is light, conveniently carries the construction, can popularize and apply at the full road within range.

4) The utility model discloses a two cantilever temporary fixation quick connecting device easy operation is swift, has to connect firm, the multi-angle rotates in a flexible way, two cantilevers are connected wantonly, avoid advantages such as jamming, can reduce operation personnel's intensity of labour, practices thrift ann tear open time, improves the construction operation efficiency greatly.

Drawings

Fig. 1 is a schematic view of a usage state of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a schematic view of the connection between the sleeve fixing clamp and the intermediate connection mechanism of the present invention.

Wherein: 1. the sleeve is fixed and clamped; 11. a first rotating member; 12. a second rotating member; 13. fastening a connecting piece; 131. connecting a screw rod; 132. a butterfly nut; 14. an opening; 2. an intermediate connection mechanism; 21. connecting a support member; 22. a positioning hook; 3. rotating the hinge ring; A. a working cantilever; B. a non-working arm.

Detailed Description

The following description will specifically explain embodiments of the present invention with reference to the accompanying drawings.

Example (b):

the utility model relates to a concrete implementation mode of two cantilever temporary fixation quick connecting device is shown with the accompanying drawing, the device is used for connecting work cantilever A and non-work cantilever B, as shown in fig. 1, work cantilever A arranges around non-work cantilever B, work cantilever A, non-work cantilever B all include the flat cantilever on upper portion and the oblique cantilever of lower part. In this embodiment, the device is connected to the working arm a and the non-working arm B, but the device is not limited thereto, and the device may be connected to any arm of the working arm a and any arm of the non-working arm B.

The specific structure of the device is shown in fig. 2 and 3, and in this embodiment, the device mainly includes a casing fixing clamp 1 for connecting two flat wrists, and an intermediate connecting mechanism 2 for connecting two casing fixing clamps 1. In this embodiment, the sleeve fixing clasp 1 includes a first rotating member 11 and a second rotating member 12, the first rotating member 11 is rotatably connected to a lower end of the second rotating member 12 and is used for wrapping the flat cantilever in a matching manner, the first rotating member 11 is connected to the second rotating member 12 through a fastening connecting member 13, the fastening connecting member 13 includes a connecting screw 131 and a butterfly nut 132, the connecting screw 131 is rotatably installed at an upper end of the first rotating member 11, an opening 14 for the connecting screw 131 to be clipped into is formed in an upper end of the second rotating member 12, and the butterfly nut 132 is in threaded connection with the connecting screw 131 located outside the opening 14. The first rotating part 11 and the second rotating part 12 can be tightened or loosened by screwing the butterfly nut 132, so that the sleeve fixing clamp 1 can be quickly and conveniently fastened on the flat cantilever, and the butterfly nut 132 can be used for manually screwing the nut for fixing without any tool.

In this embodiment, the first rotating member 11 and the second rotating member 12 are made of aluminum profiles.

All rotate on every fixed armful of card 1 of sleeve pipe and be connected with rotatory hank ring 3, in this embodiment, rotatory hank ring 3 adopts the aluminum alloy to make, installs in the outside of first rotating member 11 and can 360 rotations, the demand of different angles when can satisfying the connection.

Middle coupling mechanism 2 is including connecting support piece 21, locate respectively and connect support piece 21 both ends and be used for corresponding the location hook 22 of emboliaing in the rotatory hinge ring 3 of both sides, can adopt screw thread or riveting connection structure between connecting support piece 21 and the location hook 22, can satisfy the adjustment of connecting support piece 21 upper and lower angle after location hook 22 is connected with the rotatory hinge ring 3 of both sides, can drive non-work wrist arm B rotatory when making work wrist arm A rotatory, and guarantee that the multi-angle rotates in a flexible way, avoid the jamming. In this embodiment, the connecting and supporting member 21 is an aluminum alloy circular tube, and the positioning hook 22 is made of aluminum alloy.

The working cantilever A and the non-working cantilever B can realize fixed-distance connection and integral rotation through the matching of the middle connecting mechanism 2 and the two-side sleeve fixing clamp 1.

In the specific operation of this embodiment, the two sleeve fixing clasps 1 are respectively installed on the flat cantilever of the working cantilever a and the non-working cantilever B, the first rotating member 11 and the second rotating member 12 are fastened by screwing the butterfly nut 132 and are closely fixed to the flat cantilever, and then the positioning hooks 22 at the two ends of the connecting support member 21 are correspondingly sleeved into the rotating hinge rings 3 at the two sides to complete the installation.

The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A double-cantilever temporary fixing and quick connecting device is used for connecting a working cantilever (A) and a non-working cantilever (B), wherein the working cantilever (A) and the non-working cantilever (B) comprise a flat cantilever and an inclined cantilever, and is characterized in that: the device comprises a sleeve fixing clamp (1) and an intermediate connecting mechanism (2), wherein the sleeve fixing clamp (1) is used for respectively connecting two wrists, the intermediate connecting mechanism (2) is used for connecting the two sleeve fixing clamps (1), the sleeve fixing clamp (1) comprises a first rotating piece (11) and a second rotating piece (12) which are rotatably connected, matched and wrap the wrists, and a fastening connecting piece (13) which is used for connecting the first rotating piece (11) and the second rotating piece (12) and enabling the two rotating pieces to be fastened on the wrists, and each sleeve fixing clamp (1) is rotatably connected with a rotating hinge ring (3); the middle connecting mechanism (2) comprises a connecting support piece (21) and positioning hooks (22) which are respectively arranged at two ends of the connecting support piece (21) and are correspondingly sleeved into the rotary hinge rings (3) at two sides; the working cantilever (A) and the non-working cantilever (B) can realize fixed-distance connection and integral rotation through the cooperation of the middle connecting mechanism (2) and the two-side sleeve fixing clamp (1).

2. The double-cantilever temporary-fixing quick-connect device according to claim 1, wherein: fastening connection spare (13) are including connecting screw (131) and butterfly nut (132), connecting screw (131) are rotated and are installed on first rotation piece (11) or second rotation piece (12), it has the confession to open on second rotation piece (12) or first rotation piece (11) connecting screw (131) opening (14) of going into, butterfly nut (132) threaded connection is located on connecting screw (131) in the opening (14) outside.

3. The double-cantilever temporary-fixing quick-connect device according to claim 2, wherein: the first rotating piece (11) is rotatably connected with the lower end of the second rotating piece (12), the connecting screw rod (131) is rotatably installed at the upper end of the first rotating piece (11), and the opening (14) is formed in the upper end of the second rotating piece (12).

4. The double-cantilever temporary-fixing quick-connect device according to claim 3, wherein: the rotary hinge ring (3) is arranged on the outer side of the first rotating piece (11) and can rotate for 360 degrees.

5. The double-cantilever temporary-fixing quick-connect device according to claim 1, wherein: the first rotating piece (11) and the second rotating piece (12) are made of aluminum profiles.

6. The double-cantilever temporary-fixing quick-connect device according to claim 1, wherein: the rotary hinge ring (3) and the positioning hook (22) are made of aluminum alloy.

7. The double-cantilever temporary-fixing quick-connect device according to claim 1, wherein: the connecting and supporting piece (21) is an aluminum alloy circular tube.

8. The double-cantilever temporary-fixing quick-connect device according to claim 1, wherein: and a threaded or riveted connection structure is adopted between the connecting support (21) and the positioning hook (22).