CN210430377U - Light-load temperature expansion joint - Google Patents
Light-load temperature expansion joint Download PDFInfo
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- CN210430377U CN210430377U CN201921690690.2U CN201921690690U CN210430377U CN 210430377 U CN210430377 U CN 210430377U CN 201921690690 U CN201921690690 U CN 201921690690U CN 210430377 U CN210430377 U CN 210430377U
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- connecting plate
- telescopic joint
- expansion
- joint main
- connecting piece
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Abstract
The utility model discloses a underloading temperature telescopic joint, including first telescopic joint main part, first connecting plate, second telescopic joint main part, second connecting plate, guide rail groove, screw, bolt, public extension connecting piece, female extension connecting piece and screw hole, the U type groove clearance fit on rectangular connecting block on the first connecting plate and the second connecting plate, the guide rail is installed to the guide rail inslot, install the gasket on the bolt, install the screw in the screw hole, and take out the screw after equipment fixing accomplishes, the beneficial effects of the utility model are that this novel underloading temperature telescopic joint has simple structure, has good axiality, has improved the current-carrying capacity of inflation section, makes entire system not influence advantages such as whole line volume current-carrying capacity because of the setting of inflation section, is fit for using widely.
Description
Technical Field
The utility model relates to an expansion joint, especially a underloading temperature expansion joint.
Background
The telescopic joint is designed according to the power failure caused by linear deformation (profile extrusion and opposite vertex) generated by the sliding contact line during thermal expansion and contraction (profile shrinkage) under the condition that the sliding contact line works in different temperature environments. It is formed by two movable sections and the direct series connection of wiping line trunk line body, and its basic principle is: the static slide sheet and the dynamic slide sheet are overlapped and inserted to form a transition body which is matched with the slide contact line body, and the transition body can freely move linearly when the ambient temperature of the slide contact line changes. After the static sliding sheet and the dynamic sliding sheet are inserted in a stacked mode, no matter how the static sliding sheet and the dynamic sliding sheet extend or contract, the static sliding sheet and the dynamic sliding sheet can provide a straight transition plane for the electric brush of the collector, so that the faults that the expansion range is narrow, the electric brush of the collector is difficult to span, power failure is caused, the contact surface is small, spark is caused and the like caused by expansion of a joint in an early period are overcome.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a underloading temperature telescopic joint to solve the problem that proposes among the above-mentioned background art.
The utility model aims at realizing through the following technical scheme: a light-load temperature expansion joint comprises a first expansion joint main body, a first connecting plate, a second expansion joint main body, a second connecting plate, a guide rail groove, screw holes, bolts, a male expansion connecting piece, a female expansion connecting piece and screw holes, wherein a plurality of screw holes are formed in the middle parts of the first expansion joint main body and the second expansion joint main body; the first connecting plate and the second connecting plate are fixedly arranged on screw holes of the first telescopic joint main body and the second telescopic joint main body respectively through bolts, and the first connecting plate and the second connecting plate are positioned at the same side; the guide rail grooves are formed in the inner sides of the two side ends of the first telescopic joint main body and the second telescopic joint main body; the male expansion connecting piece is fixedly connected to the front end of the first connecting plate, and rectangular mounting blocks are respectively arranged on two sides of the front end of the male expansion connecting piece; the female expansion connecting piece is fixedly connected to the front end of the second connecting plate, and two sides of the front end of the female expansion connecting piece are respectively provided with a U-shaped groove; the screw holes are respectively arranged on the male expansion connecting piece and the female expansion connecting piece.
Furthermore, the rectangular connecting block on the first connecting plate is in clearance fit with the U-shaped groove on the second connecting plate.
Furthermore, a guide rail is arranged in the guide rail groove.
Further, a gasket is mounted on the bolt.
Furthermore, a screw is installed in the screw hole, and the screw is taken out after the equipment is installed.
Compared with the prior art, the beneficial effects of the utility model are that this novel light-duty temperature telescopic joint has simple structure, has good axiality, has improved the current-carrying capacity of inflation section, makes entire system not influence advantages such as whole line volume current-carrying capacity because of the setting of inflation section, is fit for using widely.
Drawings
FIG. 1 is an overall structure effect diagram of the present invention;
FIG. 2 is a partial structural effect diagram of the present invention;
in the figure: 1-a first expansion joint main body, 2-a first connecting plate, 3-a second expansion joint main body, 4-a second connecting plate, 5-a guide rail groove, 6-a screw hole, 7-a bolt, 8-a male expansion connecting piece, 9-a female expansion connecting piece and 10-a screw hole.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
As shown in fig. 1 to 2, the utility model discloses a light-load temperature expansion joint, which comprises a first expansion joint main body 1, a first connecting plate 2, a second expansion joint main body 3, a second connecting plate 4, a guide rail groove 5, screw holes 6, bolts 7, a male expansion connecting piece 8, a female expansion connecting piece 9 and screw holes 10, wherein a plurality of screw holes 6 are arranged on the middle parts of the first expansion joint main body 1 and the second expansion joint main body 3; the first connecting plate 2 and the second connecting plate 4 are respectively fixedly arranged on screw holes 6 of the first telescopic joint main body 1 and the second telescopic joint main body 3 through bolts 7, and the first connecting plate 2 and the second connecting plate 4 are positioned at the same side; the guide rail grooves 5 are arranged on the inner sides of the two side ends of the first telescopic joint main body 1 and the second telescopic joint main body 3; the male expansion connecting piece 8 is fixedly connected to the front end of the first connecting plate 2, and rectangular mounting blocks are respectively arranged on two sides of the front end of the male expansion connecting piece 8; the female expansion connecting piece 9 is fixedly connected to the front end of the second connecting plate 4, and U-shaped grooves are respectively formed in two sides of the front end of the female expansion connecting piece 9; screw hole 10 sets up respectively on public extension connecting piece 8 and female extension connecting piece 9, the rectangular connecting block on the first connecting plate 2 and the U type groove clearance fit on the second connecting plate 4, install the guide rail in the guide rail groove 5, install the gasket on the bolt 7, install the screw in screw hole 10, and take out the screw after equipment fixing accomplishes.
In the specific implementation process, the first expansion joint main body 1, the first connecting plate 2, the second expansion joint main body 3 and the second connecting plate 4 are overlapped and inserted to form a transition body matched with the sliding contact line body, and the transition body can freely move linearly when the environmental temperature of the sliding contact line changes. After the first expansion joint body 1, the first connecting plate 2, the second expansion joint body 3 and the second connecting plate 4 are inserted in a stacking mode, no matter how the expansion joint body extends or contracts, the first expansion joint body and the second connecting plate can provide a straight line transition plane for the electric brush of the collector, and therefore the defects that the expansion range is narrow, the electric brush of the collector is difficult to span, power failure is caused, the contact surface is small, fire flashover is caused and the like are overcome. Because the first telescopic joint main body 1 and the second telescopic joint main body 3 are directly connected, and two sliding guide rods are arranged to guide the first telescopic joint main body 1 and the second telescopic joint main body 3 in an inserting manner, the telescopic joint has good coaxiality, and meanwhile, two cables connected with the sliding connection pieces in parallel are arranged above the two ends of the first telescopic joint main body 1 and the two ends of the second telescopic joint main body 3, so that the current-carrying capacity of the expansion section is stabilized and increased, and the whole system is prevented from influencing the current-carrying capacity of the whole line volume due to the arrangement of the expansion section
The novel light-load temperature expansion joint has the advantages of simple structure, good coaxiality, improvement of the current-carrying capacity of the expansion section, no influence on the whole-line rated current-carrying capacity and the like due to the arrangement of the expansion section, and suitability for popularization and application.
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. The utility model provides a underloading temperature telescopic joint, includes first telescopic joint main part (1), first connecting plate (2), second telescopic joint main part (3), second connecting plate (4), guide rail groove (5), screw (6), bolt (7), public extension connecting piece (8), female extension connecting piece (9) and screw hole (10), its characterized in that: a plurality of screw holes (6) are formed in the middle parts of the first telescopic joint main body (1) and the second telescopic joint main body (3); the first connecting plate (2) and the second connecting plate (4) are fixedly mounted on screw holes (6) of the first telescopic joint main body (1) and the second telescopic joint main body (3) through bolts (7), and the first connecting plate (2) and the second connecting plate (4) are located at the same side; the guide rail groove (5) is arranged on the inner sides of the two side ends of the first telescopic joint main body (1) and the second telescopic joint main body (3); the male expansion connecting piece (8) is fixedly connected to the front end of the first connecting plate (2), and rectangular mounting blocks are respectively arranged on two sides of the front end of the male expansion connecting piece (8); the female expansion connecting piece (9) is fixedly connected to the front end of the second connecting plate (4), and U-shaped grooves are formed in two sides of the front end of the female expansion connecting piece (9) respectively; the screw holes (10) are respectively arranged on the male expansion connecting piece (8) and the female expansion connecting piece (9).
2. A light load temperature expansion joint according to claim 1, wherein: the rectangular connecting blocks on the first connecting plate (2) are in clearance fit with the U-shaped grooves on the second connecting plate (4).
3. A light load temperature expansion joint according to claim 1, wherein: and a guide rail is arranged in the guide rail groove (5).
4. A light load temperature expansion joint according to claim 1, wherein: and a gasket is arranged on the bolt (7).
5. A light load temperature expansion joint according to claim 1, wherein: and screws are arranged in the screw holes (10), and are taken out after the equipment is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921690690.2U CN210430377U (en) | 2019-10-11 | 2019-10-11 | Light-load temperature expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921690690.2U CN210430377U (en) | 2019-10-11 | 2019-10-11 | Light-load temperature expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210430377U true CN210430377U (en) | 2020-04-28 |
Family
ID=70368066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921690690.2U Active CN210430377U (en) | 2019-10-11 | 2019-10-11 | Light-load temperature expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210430377U (en) |
-
2019
- 2019-10-11 CN CN201921690690.2U patent/CN210430377U/en active Active
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