CN215154658U - Herringbone beam type locomotive rerailer - Google Patents
Herringbone beam type locomotive rerailer Download PDFInfo
- Publication number
- CN215154658U CN215154658U CN202121142677.0U CN202121142677U CN215154658U CN 215154658 U CN215154658 U CN 215154658U CN 202121142677 U CN202121142677 U CN 202121142677U CN 215154658 U CN215154658 U CN 215154658U
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- locomotive
- herringbone beam
- rerailer
- upright post
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model discloses a herringbone beam type locomotive rerailer, which comprises a left half herringbone beam structure and a right half herringbone beam structure, wherein the left half herringbone beam structure is provided with a first upright post, a first base, a first supporting plate, a first connecting block and a first connecting plate, the right half herringbone beam structure is provided with a second upright post, a second base, a second supporting plate, a second connecting block and a second connecting plate, the upper part and the lower part of the first connecting plate and the second connecting plate are respectively provided with a round hole and an elliptical hole, the left half herringbone beam structure and the right half herringbone beam structure are placed according to the position of a derailing locomotive, the rerailer provided by the utility model solves the problem that the derailing wheel and a mine car with the distance of more than 200 mm between the rail and the locomotive head of an electric locomotive derailing, or the mine car and the locomotive derailing in a chute hole, or the mine car and the locomotive extruding on the wall of the hole, the rerailer can not be used by the prior rerailer, the equipment is simple, and the rerailing is swift, through the practical application, and the rerailing is respond well.
Description
Technical Field
The utility model belongs to the technical field of transportation equipment maintains, concretely relates to herringbone beam type locomotive rerailer.
Background
The rerailer is a special tool which can reset the wheel set of the derailed locomotive and vehicle onto the steel rail, and the mine car running on the underground line for the ground of each mine area can frequently have the derailment and derailment phenomena due to various reasons such as overspeed, collision, line quality and the like, thereby bringing great influence on production and safety.
In actual operation, the locomotive of the electric locomotive or the mine car can be derailed due to ore support falling on the track or the reasons of widening track distance, squeezing forks and the like, so that production accidents are caused, the loss of derailment in each time is different, the fastest rerailing is carried out for more than 4 hours, and the completion of production tasks is seriously influenced.
The rerailing process after locomotive or mine car derail is complicated, and the rerailer that current conventionality was used includes hydraulic pressure rerailer, chevron shape rerailer etc. and hydraulic pressure rerailer has the problem that the rerailing speed is slow, empty easily, uses chevron shape rerailer to carry out the problem that rerailing work exists to be: after derailing occurs, under the condition that the steel rail is intact, the distance between the falling position of the wheel and the steel rail is within 200 mm, the herringbone rerailer can be used for rerailing, and once the distance between the derailed wheel and the steel rail is more than 200 mm, or the derailed mine car and the locomotive of the electric locomotive cannot move or are in a hole, the herringbone rerailer cannot rerail.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to above prior art use current chevron shape rerailer to derail wheel from the rail distance carry out the technical problem that the rerailing exists more than 200 mm, the utility model provides a chevron shape beam type locomotive rerailer, this chevron shape beam type locomotive rerailer have solved the problem of rerailing such as derail wheel and rail distance mine car, motor car locomotive head more than 200 mm, and the equipment is simple moreover, and the rerailing is swift, through in-service use, and the rerailing is respond well.
The utility model adopts the technical scheme as follows:
a herringbone beam type locomotive rerailer comprises a left half herringbone beam structure and a right half herringbone beam structure, wherein the left half herringbone beam structure is provided with a first upright post, a first base, a first supporting plate, a first connecting block and a first connecting plate, the first upright post is fixedly arranged on the first base, the first upright post is fixedly clamped on the first base through the first supporting plate, the front surface and the rear surface of the first upright post are respectively provided with a first upright post bulge and a first upright post groove, the first supporting plate forms a stabilizing effect with the first base through the first upright post groove, a triangular stable support is formed among the first supporting plate, the first upright post and the first base, one end of the first upright post, far away from the first base, is provided with the first connecting block, and the first connecting block is vertically welded at the end part of the inner side surface of the first upright post, opposite to a track, the first connecting plate is fixedly connected with the first stand column through the first connecting plate, the fixed connection mode is welding, and a first round hole and a first elliptical hole are respectively formed in the upper portion and the lower portion of one side, opposite to the first stand column, of the first connecting plate.
The right half herringbone beam structure is provided with a second upright column, a second base, a second supporting plate, a second connecting block and a second connecting plate, the arrangement mode of the second upright column is similar to that of the first upright column, the second upright column is fixedly arranged on the second base, a triangular stable support is formed between the second upright column and the second base through the second supporting plate, a second upright column protrusion and a second upright column groove are arranged on the second upright column, the second supporting plate is obliquely arranged between the second upright column groove and the second base, the end, far away from the second base, of the second upright column is provided with the second connecting block, the second connecting block is welded at the end part of the inner side face, opposite to the track, of the second upright column, the second connecting plate is arranged at the end, close to the second connecting block, of the second upright column, the second connecting plate is fixedly connected with the second upright column through the second connecting block, and the fixed connection mode is welding, and a second round hole and a second elliptical hole are respectively arranged at the upper part and the lower part of one side, opposite to the second upright post, of the second connecting plate.
The left half herringbone beam structure composed of the first upright column, the first base, the first supporting plate, the first connecting block and the first connecting plate, and the right half herringbone beam structure composed of the second upright column, the second base, the second supporting plate, the second connecting block and the second connecting plate can be adjusted in direction according to actual conditions on site.
The left half herringbone beam structure and the right half herringbone beam structure are symmetrically placed, a first round hole formed above a first connecting plate is overlapped with a second round hole formed above a second connecting plate, a bolt penetrates through the first round hole and the second round hole, fastening connection between the first connecting plate and the second connecting plate is achieved through the bolt and a nut, the first stand column and the second stand column are symmetrically placed, a first elliptical hole formed below the first connecting plate is overlapped with a second elliptical hole formed below the second connecting plate, a hook at the upper end of the chain block penetrates through the first elliptical hole and the second elliptical hole simultaneously, and a hook at the lower end of the chain block below the chain block is connected with a steel wire rope on a head coupler of a derailed mine car or an electric locomotive.
In a preferred aspect, the first and second columns: 24kg of steel rail with the length of 2.85 m; the first base and the second base: the channel steel with the specification of 140 mm and the length of 850 mm; first backup pad and second backup pad: the angle iron with the specification of 70 mm and the length of 700 mm is subjected to oblique drawing and fixing; the first connecting plate and the second connecting plate are specifically as follows: the steel plate with the specification of 20 mm, the Q235 length of 450 mm is characterized in that the widths of the upper ends of the first connecting plate and the second connecting plate are both 90 mm, and the widths of the lower ends of the first connecting plate and the second connecting plate are both 150 mm; the diameters of the first round hole and the second round hole are 36 mm; the diameters of the first elliptical hole and the second elliptical hole are both 80 mm; the diameter of the bolt is 30 mm; the chain block is 10T.
The utility model provides a pair of herringbone beam type locomotive rerailer's operating principle as follows: when the mine car, the electric locomotive head derails or the mine car and the electric locomotive head derail in a draw shaft hole or the mine car and the electric locomotive head are extruded on the wall of the hole, the left half herringbone beam consisting of the first upright post, the first base, the first supporting plate, the first connecting block and the first connecting plate, the second upright post, the second base, the second supporting plate, the second connecting block and the second connecting plate in the scheme of the utility model are respectively placed on two sides of the derailment mine car and the electric locomotive head, the left half herringbone beam and the right half herringbone beam can adjust the direction according to the actual situation on site, the bolt passes through the first round hole and the second round hole, the left half herringbone beam and the right half herringbone beam are connected together through the bolt to form a herringbone beam fulcrum, the upper end hook of the inverted chain passes through the first elliptical hole and the second elliptical hole, the lower end hook of the inverted chain is connected with the steel wire rope on the car coupler of the mine car or the electric locomotive, namely, the herringbone beam rerailer is made, the hand chain with the chain block is pulled to lift the locomotive, the derailed locomotive moves towards the track by using gravity, and then the derailed locomotive is rerailed on the original track.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model provides a herringbone beam type locomotive rerailer, which solves the problem that the existing herringbone rerailer cannot be used when the distance between a derailing wheel and a steel rail is more than 200 mm, or the head of a mine car or an electric locomotive is derailed in a chute hole, or the head of the mine car or the electric locomotive is extruded on the wall of the hole;
(2) the herringbone beam type locomotive rerailer provided by the utility model has the advantages of simple assembly, quick resetting, and good rerailing effect after two years of practical application;
(3) the left half herringbone beam composed of the first upright post, the first base, the first supporting plate, the first connecting block and the first connecting plate, the right half herringbone beam composed of the second upright post, the second base, the second supporting plate, the second connecting block and the second connecting plate can adjust the direction according to the actual situation on site.
Drawings
Fig. 1 is a schematic view of the overall structure of a herringbone beam type locomotive rerailer of the present invention;
FIG. 2 is a schematic structural view of a connecting plate in a herringbone beam type locomotive rerailer of the present invention;
FIG. 3 is a schematic side view of the center pillar, the supporting plate and the base of the herringbone beam type re-railing block of the present invention;
labeled as: 1-a first base, 2-a first support plate, 3-a first upright, 31-a first upright protrusion, 32-a first upright groove, 4-a first connecting block, 5-a bolt, 6-a first connecting plate, 61-a first round hole, 62-a first elliptical hole, 7-a nut, 8-a second connecting plate, 81-a second round hole, 82-a second elliptical hole, 9-a second connecting block, 10-a chain block upper end hook, 11-a second upright, 111-a second upright protrusion, 112-a second upright groove, 12-a chain block, 13-a chain block lower end hook, 14-a vehicle head, 15-a second support plate, 16-a second base.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention.
Example 1
A herringbone beam type locomotive rerailer comprises a left half herringbone beam structure and a right half herringbone beam structure, wherein the left half herringbone beam structure is provided with a first upright post 3, a first base 1, a first supporting plate 2, a first connecting block 4 and a first connecting plate 6, the first upright post 3 is fixedly arranged on the first base 1, the first upright post 3 is clamped and fixed on the first base 1 through the first supporting plate 2, the front and back surfaces of the first upright post 3 are respectively provided with a first upright post bulge 31 and a first upright post groove 32, the first supporting plate 2 forms a fixing effect with the first base 1 through the first upright post groove 32, triangular stable supports are formed among the first supporting plate 2, the first upright post 3 and the first base 1, one end of the first upright post 3, which is far away from the first base 1, is provided with the first connecting block 4, the first connecting block 4 is vertically welded at the end part of the inner side surface of the first upright post 3, which is opposite to a track, the first connecting plate 6 is arranged on one side, close to the first connecting block 4, of the first upright post 3, the first connecting plate 6 is fixedly connected with the first upright post 3 through the first connecting plate 4, the fixed connection mode is welding, and the first round hole 61 and the first elliptical hole 62 are respectively arranged on the upper portion and the lower portion of one side, opposite to the first upright post 3, of the first connecting plate 6.
The right half herringbone beam structure is provided with a second upright post 11, a second base 16, a second support plate 15, a second connecting block 9 and a second connecting plate 8, the arrangement of the second upright post 11 is similar to that of the first upright post 3, the second upright post 11 is fixedly arranged on the second base 16, a triangular stable support is formed between the second upright post 11 and the second base 16 through the second support plate 15, a second upright post bulge 111 and a second upright post groove 112 are arranged on the second upright post 11, the second support plate 15 is obliquely arranged between the second upright post groove 112 and the second base 16, one end of the second upright post 11 far away from the second base 16 is provided with the second connecting block 9, the second connecting block 9 is welded at the end part of the inner side surface of the second upright post 11 opposite to the track, one end of the second upright post 11 near the second connecting block 9 is provided with the second connecting plate 8, the second connecting plate 8 is fixedly connected with the second upright post 11 through the second connecting block 9, the fixed connection mode is welding, and a second round hole 81 and a second elliptical hole 82 are respectively arranged on the upper and lower sides of the opposite side of the second connecting plate 8 and the second upright post 11.
The left half herringbone beam structure consisting of the first upright post 3, the first base 1, the first supporting plate 2, the first connecting block 4 and the first connecting plate 6 and the right half herringbone beam structure consisting of the second upright post 11, the second base 16, the second supporting plate 15, the second connecting block 9 and the second connecting plate 8 can be adjusted in direction according to actual conditions on site.
The left half herringbone beam structure and the right half herringbone beam structure are symmetrically placed, a first round hole 61 formed above a first connecting plate 6 is overlapped with a second round hole 81 formed above a second connecting plate 8, a bolt 5 penetrates through the first round hole 61 and the second round hole 81, the first connecting plate 6 is fixedly connected with the second connecting plate 8 through the bolt 5 and a nut 7, the left half herringbone beam structure and the right half herringbone beam structure are symmetrically placed, a first elliptical hole 62 formed below the first connecting plate 6 is overlapped with a second elliptical hole 82 formed below the second connecting plate 8, a hook 10 at the upper end of a chain block 12 simultaneously penetrates through the first elliptical hole 62 and the second elliptical hole 82, and a hook 13 at the lower end of the chain block below the chain block 12 is connected with a steel wire rope on a coupler of a head 14 of a derailed mine car or an electric locomotive.
Example 2
Based on embodiment 1, when the distance between the derailed wheel and the steel rail is more than 200 mm, or the head of the electric locomotive cannot move or is in a hole of the derailed mine car, the specific implementation mode of the herringbone beam type locomotive rerailer provided by the invention is as follows:
the first upright column 3 and the second upright column 11 are made of the following materials: 24kg of steel rail with the length of 2.85 m; the first base 1 and the second base 16 are made of the following materials: the channel steel with the specification of 140 mm and the length of 850 mm; the first supporting plate 2 and the second supporting plate 15 are made of the following materials: the angle iron with the specification of 70 mm and the length of 700 mm is subjected to oblique drawing and fixing; the first connecting plate 6 and the second connecting plate 8 are made of the following materials: the steel plate with the specification of 20 mm, the Q235 length of 450 mm is characterized in that the widths of the upper ends of the first connecting plate 6 and the second connecting plate 8 are both 90 mm, and the widths of the lower ends of the first connecting plate and the second connecting plate are both 150 mm; the diameters of the first round hole 61 and the second round hole 81 are 36 mm; the diameters of the first elliptical hole 62 and the second elliptical hole 82 are both 80 mm; the diameter of the bolt 5 used is 30 mm; the chain 12 is 10T.
Two steel rails with the specification of 24kg and the length of 2.85m are used as two upright columns of the herringbone beam, namely a first upright column 3 and a second upright column 11; two channel steels with the specification of 140 mm and the length of 850 mm are respectively used as two bases of two upright posts, namely a first base 1 and a first base 16; the two surfaces of the upright post and the base are fixedly supported by angle iron with the specification of 70 mm and the length of 700 mm in a diagonal drawing mode, namely a first supporting plate 2 and a second supporting plate 15; steel plates with the specification of 20 mm, Q235 and the length of 450 mm are respectively and vertically welded at the upper end of the upright column, namely the first connecting plate 6 and the second connecting plate 8; holes with the diameter of 36 mm, namely a first round hole 61 and a second round hole 81, are respectively formed in the upper end of the steel plate; a bolt 5 with the diameter of 30 mm penetrates through the first round hole 61 and the second round hole 81, and the left and right two half herringbone beams are connected together by the bolt 5 with the diameter of 30 mm to form a herringbone beam fulcrum; the widths of the lower ends of the first connecting plate 6 and the second connecting plate 8 are 150 mm, elliptical holes with the diameters of 80 mm are respectively formed, a 10T chain block 12 is hung in the 80 mm elliptical holes, a chain block lower end hook 13 is connected with a steel wire rope on a car head 14 car coupler of a mine car or an electric locomotive to form a herringbone beam type rerailer, the distance between a perpendicular line of a hanging point on the chain block and a perpendicular line of a car coupler central line is within 300 mm, the chain block hand chain is pulled to lift the car head, and the derailed car head swings to a rail by about 280 mm by utilizing gravity, so that rerailing is realized. The technical scheme solves the problem that the derailment of the tramcar with the derailment wheels and the distance between the steel rails being more than 200 mm, the derailment of the electric locomotive head and the tramcar, the derailment of the electric locomotive head in the chute hole, the extrusion of the tramcar and the electric locomotive head on the wall of the hole and the re-railing of the herringbone re-railing device cannot be used.
The utility model provides a pair of herringbone beam type locomotive rerailer's operating principle as follows: when the mine car, the electric locomotive head derails or the mine car and the electric locomotive head derail in a draw shaft hole or the mine car and the electric locomotive head are extruded on the wall of the hole, a left half herringbone beam consisting of a first upright post 3, a first base 1, a first supporting plate 2, a first connecting block 4 and a first connecting plate 6, a second upright post 11, a second base 16, a second supporting plate 15, a second connecting block 9 and a right half herringbone beam consisting of a second connecting plate 8 in the scheme of the utility model are respectively placed on two sides of the derailed mine car and the electric locomotive head, a bolt 5 passes through a first round hole 61 and a second round hole 81, the left half herringbone beam and the right half herringbone beam are connected together through the bolt 5 to form a herringbone beam fulcrum, a reverse chain upper end hook 10 passes through a first elliptical hole 62 and a second elliptical hole 82, a reverse chain lower end beam type hook 13 is connected with a steel wire rope on a coupler on the mine car or the locomotive head 14 of the electric locomotive, namely, a herringbone rerailer is made, the derailed locomotive is rerailed to the original track under the action of the chain block, and the herringbone beam type locomotive rerailer is simple to assemble and quick to reset.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. A herringbone beam type locomotive rerailer is characterized by comprising a left half herringbone beam structure and a right half herringbone beam structure, the left half herringbone beam structure is provided with a first upright post (3), the first upright post (3) is clamped and fixed on the first base (1) through a first supporting plate (2), a first connecting plate (6) is welded at the end part of the inner side surface of the first upright post (3) through a first connecting block (4), the right half herringbone beam structure is correspondingly provided with a second upright post (11), the second upright post (11) forms triangular stable support with a second base (16) through a second support plate (15), a second connecting plate (8) is welded at the end part of the inner side surface of the second upright post (11) relative to the track through a second connecting block (9), round holes and elliptical holes are respectively arranged at the upper and lower parts of the first connecting plate (6) and the second connecting plate (8).
2. A herringbone beam locomotive rerailer according to claim 1, characterized in that the circular holes are a first circular hole (61) and a second circular hole (81), the elliptical holes are a first elliptical hole (62) and a second elliptical hole (82), and a bolt (5) penetrates through the first circular hole (61) and the second circular hole (81) to connect the left half herringbone beam structure and the right half herringbone beam structure together to form a herringbone beam fulcrum.
3. A chevron locomotive rerailer as claimed in claim 2, characterized in that said first (62) and second (82) oblong holes are simultaneously passed by a chain block upper end hook (10), and a chain block lower end hook (13) below the chain block (12) is connected to a wire rope on the coupler of the headstock (14) of a derailment car or an electric locomotive.
4. A herringbone beam type locomotive rerailer according to claim 1, characterized in that the front and rear surfaces of the first upright post (3) are provided with a first upright post protrusion (31) and a first upright post groove (32), the first supporting plate (2) forms a stabilizing effect with the first base (1) through the first upright post groove (32), and a triangular stabilizing support is formed among the first supporting plate (2), the first upright post (3) and the first base (1).
5. A chevron beam locomotive rerailer as claimed in claim 1, characterized in that said first connection block (4) is welded perpendicularly to the inner side end of the first upright (3) with respect to the track, said first connection plate (6) being welded perpendicularly to the first upright (3) by means of the first connection block (4).
6. A herringbone beam type locomotive rerailer according to claim 1, characterized in that a second upright protrusion (111) and a second upright groove (112) are arranged on the second upright (11), and the second support plate (15) is arranged in a diagonal manner between the second upright groove (112) and the second base (16).
7. A herringbone beam locomotive rerailer according to claim 1, characterized in that said second connecting block (9) is arranged at one end of the second upright (11) far from the second base (16), said second connecting block (9) is welded at the end of the inner side of the second upright (11) opposite to the rail, and said second connecting plate (8) is welded at the inner side of the second upright (11) through the second connecting block (9).
8. A chevron locomotive rerailer as claimed in claim 1, characterized in that said first (3) and second (11) uprights are: 24kg of steel rail with the length of 2.85 m; the first base (1) and the second base (16) are: the channel steel with the specification of 140 mm and the length of 850 mm; first backup pad (2) and second backup pad (15) are: the angle iron with the specification of 70 mm and the length of 700 mm is subjected to oblique drawing and fixing; the first connecting plate (6) and the second connecting plate (8) are: the steel plate with the specification of 20 mm, the Q235 length of 450 mm, the upper end widths of the first connecting plate (6) and the second connecting plate (8) are both 90 mm, the lower end widths of the first connecting plate (6) and the second connecting plate (8) are both 150 mm, and the inverted chain (12) is 10T.
9. A herring-bone beam locomotive rerailer according to claim 2, characterized in that said first and second circular holes (61, 81) have a diameter of 36 mm; the diameters of the first elliptical hole (62) and the second elliptical hole (82) are both 80 mm; the diameter of the bolt (5) is 30 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121142677.0U CN215154658U (en) | 2021-05-25 | 2021-05-25 | Herringbone beam type locomotive rerailer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121142677.0U CN215154658U (en) | 2021-05-25 | 2021-05-25 | Herringbone beam type locomotive rerailer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN215154658U true CN215154658U (en) | 2021-12-14 |
Family
ID=79372176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202121142677.0U Active CN215154658U (en) | 2021-05-25 | 2021-05-25 | Herringbone beam type locomotive rerailer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN215154658U (en) |
-
2021
- 2021-05-25 CN CN202121142677.0U patent/CN215154658U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103552573B (en) | Technical bogie for maintenance | |
CN215154658U (en) | Herringbone beam type locomotive rerailer | |
CN206429270U (en) | A kind of shield machine station-crossing device | |
CN109733816B (en) | Trolley | |
CN201825651U (en) | Novel bridge type crane runway clip | |
CN111908335B (en) | Braking buffer device for crane rail end | |
CN103342283A (en) | Anti-wind device of gantry crane | |
CN203427789U (en) | Turnout rope pressing apparatus of endless rope | |
CN210084700U (en) | High-speed automobile ladder car frame | |
CN203020327U (en) | Quick rescue suspension wheel support for deadly blocked driving wheel of harmonious type electric locomotive | |
CN206767512U (en) | A kind of overhead prestressed tensioning suspender | |
CN221029877U (en) | Detachable sleeper face ballast cleaning device | |
CN211141315U (en) | Tool for disassembling, assembling and overhauling drive axle of rail transport locomotive | |
CN201296604Y (en) | An automatic dust removal device of a conductive track of a crown block and a crown block with the device | |
CN212890356U (en) | Traveling wheel stopping tool | |
CN216471875U (en) | Gantry crane with strong anti-falling capacity for road and bridge engineering | |
CN211895732U (en) | Buffer device for slowing down collision of gantry crane | |
CN203530850U (en) | Track device of forward bridge girder erection machine | |
CN201530962U (en) | Novel rail joint structure | |
CN219007817U (en) | Anti-overturning device on railway ultrahigh line | |
CN214689525U (en) | Rerailing bridge assembly | |
CN219045068U (en) | Wire rod unwrapping wire slide rail frame | |
CN212386505U (en) | Portable car arrester for coal mine car | |
CN219927693U (en) | Wheel guard device for reinforcing railway transportation crawler equipment | |
CN209581461U (en) | Railway protection is with increase metal mesh of concatenation of being convenient for |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |