CN210101385U - Fixing device for mounting third rail and suspension type rail provided with third rail - Google Patents

Abstract

The utility model relates to a fixing device for installing a third rail and a suspension type rail provided with the third rail, wherein, the fixing device comprises a fixed clamping part, a movable clamping part hinged with the fixed clamping part and a locking part, the fixed clamping part and the movable clamping part are respectively made of insulating materials, a cavity for accommodating a rail bottom is arranged between the fixed clamping part and the movable clamping part, and the locking part loosens or clamps the rail bottom arranged in the cavity by adjusting the included angle between the movable clamping part and the fixed clamping part; the fixing device provided by the utility model has compact structure and convenient installation and use, can realize stable and firm installation and fixation of the third rail, and can effectively prevent the problem of looseness or local falling off in the actual use process; this suspension type track utilizes above-mentioned fixing device to set up the third rail in orbital die cavity, and the power supply of both being convenient for can effectively protect the third rail again, avoids appearing accidents such as electric leakage, electric shock.

Description

Fixing device for mounting third rail and suspension type rail provided with third rail

Technical Field

The utility model relates to a rail transit technical field, concretely relates to a suspension type track for installing the fixing device of third rail and be provided with the third rail.

Background

The existing power supply modes of the rail car are generally divided into a contact power grid power supply mode and a third rail power supply mode, wherein the contact power grid power supply mode is generally 1500V, and the power grid is arranged above the train; the power is supplied by adopting a contact power grid, so that the safety coefficient is high, but the technical content is large, the laying difficulty is high, the cost is high, and the attractiveness is influenced; the third rail supplies power by adopting the separately arranged electrified rail, the cost is often lower than the cost of contacting with the power supply of a power grid, in the actual use process, the influence of the environment on the third rail is smaller, such as severe weather environments of strong wind, heavy rain and the like, in addition, the third rail supplies power and is more suitable to be installed in a tunnel with a smaller radius, so that the third rail supplies power in the power supply of a rail car widely.

The third rail commonly used in the prior art generally includes a rail bottom, a rail web, and a rail head, as shown in fig. 1, wherein two ends of the rail web are respectively connected with the rail bottom and the rail head, the rail bottom and the rail web form a T-shaped structure, the rail bottom is generally used for installing the third rail, and the rail head is used for contacting with a power receiving device to realize power supply.

In the actual use process, the third rail generally needs to be firmly installed around the rail car (generally, above, beside or below) so as to be in close contact with the power receiving device on the rail car, thereby achieving smooth power supply; however, the third rail commonly used in the prior art generally has the following disadvantages: 1. the lack of a special device for fixing the third rail, especially in a personal agility system, makes the existing third rail inconvenient to realize firm installation and fixation, and is easy to loosen or partially fall off in the actual use process; 2. after the existing third rail is installed, the problems of poor insulation effect and easy electric leakage exist generally, and particularly, the exposed third rail is easy to leak electricity to influence power supply and is easy to cause electric shock accidents, so that the safety is required to be improved.

SUMMERY OF THE UTILITY MODEL

For solving and existing among the prior art, the third rail is not convenient for realize firm installation and fixed problem, the utility model provides a fixing device for installing the third rail, including fixed clamping part, with fixed clamping part articulated activity clamping part, and locking portion, fixed clamping part and activity clamping part adopt insulating material to make respectively, are provided with the cavity that is used for holding the rail end between fixed clamping part and the activity clamping part, locking portion loosens or presss from both sides tightly through the contained angle of adjusting activity clamping part and fixed clamping part set up in rail end in the cavity. This fixing device can utilize fixed clamping part and activity clamping part to press from both sides tight third rail, realizes stable and firm installation, fixed to the third rail, both can effectively prevent to appear not hard up or the problem that part drops in the in-service use in-process, can realize again keeping apart the third rail, and insulating effectual is difficult to the problem that the electric leakage appears.

Preferably, one end of each of the fixed clamping part and the movable clamping part is provided with a hinge hole, and the hinge is realized through the matching of a pin shaft and the hinge holes; so as to flexibly adjust the included angle between the fixed clamping part and the movable clamping part and facilitate the installation and the disassembly of the third rail.

Preferably, the locking part comprises a locking bolt and through holes respectively formed in the fixed clamping part and the movable clamping part, and the locking bolt is matched with the through holes. Through twisting the locking bolt, the contained angle between fixed clamping part and the activity clamping part of regulation that can be convenient to effectively adjust the clamp force to the third rail.

Preferably, the locking bolt is a hexagon socket head cap screw.

In an optimal scheme, fixed clamping part includes bottom plate, curb plate and solid fixed splint, the curb plate respectively with bottom plate and solid fixed splint link to each other to perpendicular to bottom plate and solid fixed splint respectively, the activity clamping part is including movable clamping plate, and movable clamping plate's one end is articulated mutually with the bottom plate, and bottom plate, curb plate, solid fixed splint and movable clamping plate enclose jointly the cavity, and be provided with the opening that is used for through the rail waist between movable clamping plate and the solid fixed splint.

Preferably, the through holes are respectively arranged on the bottom plate and the movable clamping plate.

In order to clamp the third rail firmly, in a preferred scheme, at the opening, the end face of the movable clamping plate and the end face of the fixed clamping plate are respectively arc-shaped faces or respectively comprise a section of arc-shaped face. The arc-shaped surface is provided with at least the following three functions, 1, when the third rail is installed, the rail bottom of the third rail is more conveniently inserted between the bottom plate and the fixed clamping plate; 2. after the rail bottom of the third rail is restrained in the cavity, a user can gradually press the rail bottom by screwing the bolt, and due to the arrangement of the arc-shaped surface on the end surface of the movable clamping plate, not only can a vertical upward pressing force be generated on the rail bottom, but also a horizontal rightward acting force can be generated on the rail bottom, so that in the screwing process, the movable clamping plate can extrude the third rail rightwards, the third rail can be properly moved rightwards, the rail bottom can be ensured to be inserted into a space between the bottom plate and the fixed clamping plate to the maximum extent, and firmer fixation is realized; 3. the arc face can with the third rail on the arc transition structure looks adaptation between the rail foot and the rail waist for area of contact between activity splint and the fixed splint and the third rail is bigger, makes in the in-service use process, and the third rail is difficult to rock or become flexible under the effect of external force.

The utility model provides a suspension type track with third rail, is including the track that is used for guide rail car anterow and/or becomes the rail, the third rail that is used for the power supply and a plurality of aforementioned fixing device, the track is provided with and is used for holding the die cavity of fixing device and third rail, fixing device is fixed in the die cavity, the third rail is fixed in fixing device. The third rail passes through fixing device to be fixed in the die cavity, and the power supply of both being convenient for is favorable to whole suspension type orbital structure compacter again, can effectual protection third rail for the third rail is difficult to receive the influence of environment, especially can avoid the third rail to rock under the effect of strong wind, can avoid being drenched by the rainwater, leads to electric leakage etc..

Preferably, the fixing device is detachably fixed to the cavity through the locking part, and the third rail is fixed through the locking part.

In a preferred scheme, the track comprises an outer cover and two upper guide rails, the two upper guide rails are respectively arranged in the outer cover, the outer cover and the upper guide rails jointly enclose the cavity, and the fixing device is fixed on the outer cover.

In a preferred embodiment, the two upper rails are parallel to each other.

Preferably, the third rail is fixed at a position in the middle of the top of the cavity.

In a further aspect, two adjacent fixtures are staggered along the length of the third rail.

Compared with the prior art, use the utility model provides a pair of a suspension type track for installing fixing device of third rail and being provided with the third rail has following beneficial effect:

1. the fixing device has compact structure and convenient installation and use, can realize stable and firm installation and fixation of the third rail, and can effectively prevent the problem of looseness or local falling in the actual use process;

2. this fixing device utilizes the fixed third rail of fixed clamping part and the fixed third rail of activity clamping part that adopts insulating material to make, can realize keeping apart the third rail, and insulating effect is better, is difficult to the problem that appears the electric leakage.

3. In this fixing device, through setting up the arcwall face, both can be convenient for insert the rail end of third rail between bottom plate and the solid fixed splint, can increase area of contact again for in the in-service use process, the third rail is difficult to rock or not hard up under the effect of external force.

4. This suspension type track sets up fixing device and third rail in the die cavity, and the power supply of both being convenient for is favorable to whole suspension type orbital structure compacter again, can effectual protection third rail for the third rail is difficult to receive the influence of environment, especially can avoid the third rail to rock under the effect of strong wind, avoids being drenched by the rainwater, leads to the electric leakage, avoids electrocuteeing and so on.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic cross-sectional view of a third rail commonly used in the prior art.

Fig. 2 is a schematic structural view of a fixing clamping portion in the fixing device provided in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a movable clamping portion in the fixing device provided in embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of a fixing device provided in embodiment 1 of the present invention.

Fig. 5 is a schematic view of a fixing device provided in embodiment 1 of the present invention after a third rail is fixed.

Fig. 6 is a schematic partial structure view of a suspension rail provided in embodiment 2 of the present invention.

Fig. 7 is a schematic cross-sectional view of a suspension rail provided in embodiment 2 of the present invention.

Description of the drawings

A third rail 101, a rail foot 102, a rail web 103, a rail head 104,

a fixed clamping part 201, a bottom plate 202, a side plate 203, a fixed clamping plate 204, a hinge seat 205, a through hole 206, an opening 207, a bolt 208, a nut 209, a pin shaft 210, a hinge hole 211, a cavity 212,

a movable clamping part 301, a movable clamping plate 302, an arc-shaped surface 303,

the track 401, the housing 402, the upper rail 403, the cavity 404, the lower rail 405, and the gap 406.

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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 2, 3 and 4, the embodiment provides a fixing device for mounting a third rail 101, including a fixed clamping portion 201, a movable clamping portion 301 hinged to the fixed clamping portion 201, and a locking portion, where the fixed clamping portion 201 and the movable clamping portion 301 are made of insulating materials, respectively, so as to isolate the third rail 101 and prevent electric leakage;

be provided with the cavity 212 that is used for holding rail end 102 between fixed clamping part 201 and the activity clamping part 301, the contained angle that locking portion passed through regulation activity clamping part 301 and fixed clamping part 201 loosen or press from both sides tight set up in rail end 102 in cavity 212 can adjust the contained angle between activity clamping part 301 and the fixed clamping part 201 through locking portion promptly to the realization is to the relaxation or the clamp of third rail 101, is convenient for dismantle or install third rail 101.

As shown in fig. 1 and described in the background, a third rail 101 commonly used in the prior art generally includes a rail base 102, a rail web 103, and a rail head 104, two ends of the rail web 103 are respectively connected to the rail base 102 and the rail head 104, the rail base 102 and the rail web 103 form a T-shaped structure, the rail base 102 is generally used for mounting the third rail 101, and the rail head 104 is used for contacting with a power receiving device to supply power; when the fixing device provided by this embodiment is used to fix the third rail 101, the locking portion is required to adjust and increase the included angle between the fixed clamping portion 201 and the movable clamping portion 301, so that the rail bottom 102 of the third rail 101 can be conveniently and smoothly placed into the cavity 212, and then the locking portion is used to reduce the included angle between the fixed clamping portion 201 and the movable clamping portion 301, so that the rail bottom 102 can be clamped between the fixed clamping portion 201 and the movable clamping portion 301, thereby realizing stable and firm installation and fixation of the third rail 101, and effectively preventing the problem of looseness or local falling in the actual use process; in addition, in the fixing device provided by this embodiment, the fixed clamping portion 201 and the movable clamping portion 301 for contacting the third rail 101 are both made of insulating materials, so that the third rail 101 can be isolated, the insulating effect is good, and the problem of electric leakage is not easy to occur.

It is understood that the fixed clamping portion 201 and the movable clamping portion 301 may be made of an insulating material, such as rubber, etc., which is commonly used in the art, and will not be described herein.

In a preferred scheme, hinge holes 211 are respectively formed in one end of the fixed clamping portion 201 and one end of the movable clamping portion 301, and the hinge is achieved by matching the pin shaft 210 with the hinge holes 211; the hinge connection with the pin 210 through the hinge hole 211 is a conventional means, and will not be described in detail.

In a preferred embodiment provided by this embodiment, the locking portion includes a locking bolt 208 and a through hole 206 respectively disposed in the fixed clamping portion 201 and the movable clamping portion 301, as shown in fig. 2, fig. 3, or fig. 4, the locking bolt 208 is adapted to the through hole 206, in practical use, the rail bottom 102 of the third rail 101 needs to be placed in the cavity 212, so that the rail bottom 102 is located right between the fixed clamping portion 201 and the movable clamping portion 301, at this time, the locking bolt 208 sequentially passes through the through hole 206 from one end and is connected to an adapted nut 209 at the other end, and the locking bolt 208 is tightened, so that an included angle between the fixed clamping portion 201 and the movable clamping portion 301 can be tightened, so that the rail bottom 102 is gradually clamped, thereby fixing the third rail 101.

In a preferred embodiment, the locking bolt 208 may be a socket head cap bolt 208.

In a preferred embodiment provided by this embodiment, the fixed clamping portion 201 includes a bottom plate 202, a side plate 203 and a fixed clamping plate 204, the side plate 203 is connected to the bottom plate 202 and the fixed clamping plate 204 respectively and is perpendicular to the bottom plate 202 and the fixed clamping plate 204 respectively, the movable clamping portion 301 includes a movable clamping plate 302, one end of the movable clamping plate 302 is hinged to the bottom plate 202, the side plate 203, the fixed clamping plate 204 and the movable clamping plate 302 together enclose the cavity 212, and an opening 207 is provided between the movable clamping plate 302 and the fixed clamping plate 204 for passing through the rail waist 103, and the opening 207 is communicated with the cavity 212, that is, as shown in fig. 4 and 5, an end surface of the movable clamping plate 302 is not in contact with an end surface of the fixed clamping plate 204, and a gap is left so as to pass through the rail waist 103 of the third rail 101; for example, as shown in fig. 2, fig. 3, fig. 4, or fig. 5, in the present embodiment, one end of the bottom plate 202 and one end of the movable clamp plate 302 are respectively provided with a hinge seat 205 for forming a hinge, the hinge holes 211 are respectively disposed in the hinge seats 205, and the openings 207 respectively penetrate through the fixed clamp plate 204 and the movable clamp plate 302, so as to facilitate passing through the bolts 208; the cavity 212 is defined by the bottom plate 202, the side plate 203, the fixed clamp plate 204 and the movable clamp plate 302, and when the fixing device is fixed (e.g., fixed on the rail 401), only the movable clamp plate 302 can rotate relative to the bottom plate 202, so as to adjust the size of the opening 207 for mounting or dismounting the third rail 101.

In a preferred embodiment, the width of the movable clamp plate 302 is greater than or equal to the width of the bottom plate 202, as shown in fig. 4, in this embodiment, the width of the movable clamp plate 302 is greater than the width of the bottom plate 202, which is beneficial to increase the contact area between the movable clamp plate 302 and the third rail 101, and is further beneficial to support the third rail 101.

In a preferred embodiment, the through holes 206 are respectively disposed on the bottom plate 202 and the movable clamp plate 302, for example, as shown in fig. 2 or fig. 3 or fig. 4 or fig. 5, in the present embodiment, the through holes 206 are respectively disposed on the bottom plate 202 and the movable clamp plate 302 at positions close to the hinges, so that the bolts 208 disposed in the through holes 206 may be as far away from the third rail 101 as possible, which facilitates tightening and loosening of the bolts 208, and may effectively prevent the bolts 208 from contacting the third rail 101, which may cause an electric leakage accident.

In order to facilitate the firm clamping of the third rail 101, especially to facilitate the contact between the third rail 101 and the fixing device, in the present embodiment, a further scheme is provided, in which at the opening 207, the end surface of the movable clamping plate 302 and the end surface of the fixed clamping plate 204 are respectively an arc-shaped surface 303, or respectively include a segment of the arc-shaped surface 303, as shown in fig. 2 or fig. 3 or fig. 4 or fig. 5. The arc-shaped surface 303 has at least the following three functions, that is, 1, when the third rail 101 is installed, the rail bottom 102 of the third rail 101 is more conveniently inserted between the bottom plate 202 and the fixing clamp plate 204; 2. after the rail bottom 102 of the third rail 101 is restrained in the cavity 212, a user can gradually press the rail bottom 102 by screwing the bolt 208, and due to the arrangement of the arc-shaped surface 303 on the end surface of the movable clamping plate 302, not only can a vertical upward pressing force be generated on the rail bottom 102, but also a horizontal rightward acting force (i.e. a direction close to the side plate 203) can be generated on the rail bottom 102, so that in the process of screwing, the movable clamping plate 302 can press the third rail 101 rightward, so that the third rail 101 can be moved rightwards appropriately, and the rail bottom 102 can be inserted into a space between the bottom plate 202 and the fixed clamping plate 204 to the maximum extent, so that firmer fixation is realized; 3. the arc-shaped surface 303 can be matched with an arc-shaped transition structure between the rail bottom 102 and the rail waist 103 on the third rail 101, so that the contact area between the movable clamping plate 302 and the third rail 101 as well as the fixed clamping plate 204 is larger, and the third rail 101 is not easy to shake or loosen under the action of external force in the actual use process.

Example 2

The embodiment provides a suspension type rail 401 provided with a third rail 101, which comprises a rail 401 for guiding the rail 401 to move forwards and/or change rails, the third rail 101 for supplying power, and a plurality of fixing devices, wherein the rail 401 is provided with a cavity 404 for accommodating the fixing devices and the third rail 101, the fixing devices are fixed in the cavity 404, and the third rail 101 is fixed on the fixing devices, as shown in fig. 6; the third rail 101 is fixed in the cavity 404 through a fixing device, which is not only convenient for power supply, but also beneficial to the more compact structure of the whole suspension type rail 401, and can effectively protect the third rail 101, so that the third rail 101 is not easily affected by the environment, and especially, the third rail 101 can be prevented from shaking under the action of strong wind, being prevented from being wetted by rainwater, and causing electric leakage and the like.

In this embodiment, the fixing device can be detachably fixed to the cavity 404 by the locking portion, and can also fix the third rail 101 by the locking portion, that is, in this embodiment, the locking portion is used for fixing the third rail 101 and the fixing device to the cavity 404 of the suspension rail 401.

As shown in fig. 6, in a preferred scheme, the track 401 includes an outer cover 402, two upper guide rails 403, the two upper guide rails 403 are respectively disposed in the outer cover 402, the outer cover 402 and the upper guide rails 403 together enclose the cavity 404, and the fixing device is fixed to the outer cover 402; for example, in a preferred embodiment, the housing 402 is provided with a mounting hole, and when the fixing device is mounted, the fixing device and the third rail 101 can be conveniently and firmly fixed in the cavity 404 by passing the bolt 208 through the through hole 206 on the fixing device and the mounting hole on the housing 402 in sequence and cooperating with the nut 209.

As an example, the track 401 described in this embodiment may preferably adopt a track 401 disclosed in the prior art, as shown in fig. 7, the track 401 includes an outer cover 402, a notch 406 is provided at a lower end of the outer cover 402, two parallel lower guide rails 405 are respectively provided at two sides of the notch 406, two parallel upper guide rails 403 are provided inside the outer cover 402, and the track 401 is generally disposed inside the outer cover 402 and moves along a length direction of the outer cover 402; for the track 401, the fixing device and the third rail 101 may be respectively disposed in a cavity 404 formed by the two upper guide rails 403 and the outer cover 402, and the third rail 101 is fixed at a position in the middle of the top (right) of the cavity 404, as shown in fig. 7, a power receiving device (or referred to as a power taking device) adapted to the third rail 101 is disposed on the upper portion of the track 401, so that the third rail 101 may be in close contact with the power receiving device and power supply is achieved in the moving process of the track 401. In this embodiment, the fixing device and the third rail 101 are both enclosed in the track 401, so that the structure is compact, the installation is reliable, the third rail 101 can be effectively protected, and the problems of electric leakage, electric shock and the like can be prevented.

In order to fix the third rail 101 more firmly and stress more uniformly, in a further scheme, two adjacent fixing devices are arranged in a staggered manner along the length direction of the third rail 101, namely, the two adjacent fixing devices are arranged in opposite directions, so that the problem of uneven transverse stress of the third rail 101 can be solved, the stress of the third rail 101 is more uniform, the third rail 101 can be fixed more firmly, and looseness in the actual working process can be effectively avoided.

It can be understood that the distance between two adjacent fixing devices can be determined according to practical situations, and is not described herein again.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a fixing device for installing third rail, its characterized in that, including fixed clamping part, with fixed clamping part is articulated movable clamping part and locking portion, fixed clamping part and activity clamping part adopt insulating material to make respectively, are provided with the cavity that is used for holding the rail end between fixed clamping part and the activity clamping part, locking portion loosens or presss from both sides tightly through the contained angle of adjusting movable clamping part and fixed clamping part set up in the rail end in the cavity.

2. The fixing device for installing the third rail as claimed in claim 1, wherein the fixed clamping portion and the movable clamping portion are respectively provided with a hinge hole at one end, and the hinge is realized by the cooperation of a pin shaft and the hinge hole.

3. The fixing device for installing the third rail as claimed in any one of claims 1 to 2, wherein the locking portion comprises a locking bolt and a through hole respectively disposed in the fixed clamping portion and the movable clamping portion, and the locking bolt is adapted to the through hole.

4. The fixing device for installing the third rail according to claim 3, wherein the fixed clamping portion comprises a bottom plate, a side plate and a fixed clamping plate, the side plate is respectively connected with the bottom plate and the fixed clamping plate and is perpendicular to the bottom plate and the fixed clamping plate, the movable clamping portion comprises a movable clamping plate, one end of the movable clamping plate is hinged to the bottom plate, the side plate, the fixed clamping plate and the movable clamping plate together enclose the cavity, and an opening for passing through a rail waist is formed between the movable clamping plate and the fixed clamping plate.

5. The fastening device for mounting the third rail according to claim 4, wherein the through holes are respectively provided in the base plate and the movable clamping plate.

6. The fixing device for installing the third rail according to claim 5, wherein the end surface of the movable clamping plate and the end surface of the fixed clamping plate at the opening are respectively arc-shaped surfaces or respectively comprise a segment of arc-shaped surface.

7. A suspended rail provided with a third rail, characterized in that it comprises a rail for guiding the rail car to move forward and/or to change rails, a third rail for supplying power, and a plurality of fixing devices according to any one of claims 1 to 6, said rail being provided with a cavity for accommodating said fixing devices and said third rail, said fixing devices being fixed in said cavity, said third rail being fixed to said fixing devices.

8. The hanging rail with the third rail as claimed in claim 7, wherein the rail comprises a housing, two upper rails respectively disposed in the housing, the housing and the upper rails together enclosing the cavity, and the fixing device is fixed to the housing.

9. A suspension rail provided with a third rail according to claim 7, characterised in that the third rail is fixed in a position in the middle of the top of the mould cavity.

10. A suspension rail provided with a third rail according to any one of claims 7-9, characterised in that two adjacent fastening means are staggered along the length of the third rail.

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