Railway overhead line system construction positioning tackle

Abstract

The utility model discloses a railway catenary construction positioning tackle which comprises a bottom plate, two outer supporting rods are symmetrically arranged at the left end and the right end of the top of the bottom plate, inner lifting rods are inserted into the outer supporting rods in a sliding mode, mounting bases are arranged at the tops of the inner lifting rods, and mounting grooves are symmetrically formed in the sides, close to each other, of the two mounting bases. Electric push rods are mounted in the mounting grooves, the extension ends of the two electric push rods are connected with connecting plates, a cable storage rack is detachably mounted between the two connecting plates through clamping extrusion pieces, a hydraulic supporting platform is arranged in the middle of the top of the bottom plate, and two transverse plates are symmetrically arranged on the left side and the right side of the top of the hydraulic supporting platform; a vertical rod is arranged at the bottom of the mounting base, and a clamping assembly is arranged between the transverse plate and the vertical rod; compared with an existing device, the device has the advantages that the installation operation of the cable storage rack in the device is carried out at a lower position, the installation operation is simple, the operation environment is safe, and the device is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of railway construction technology, and in particular to a positioning trolley for railway catenary construction. Background Technology

[0002] The overhead contact system (or catenary) is a high-voltage power transmission line erected in a zigzag pattern above the rails in electrified railways, supplying current to the pantograph. It is the main framework of railway electrification engineering, a special type of power transmission line that supplies power to electric locomotives. It consists of several parts: contact suspension, support devices, positioning devices, supports, and foundations. During installation, positioning trolleys are used to transport the cables along the railway.

[0003] Existing devices have certain shortcomings in use. For example, the utility model patent with authorization announcement number CN222372875U discloses a railway catenary construction positioning pulley. This device requires first adjusting the support column to a suitable height, and then using a hydraulic support platform to lift the cable storage rack to the corresponding height before installing the cable storage rack. Therefore, this installation operation is carried out at a certain height, making the operating environment relatively dangerous and the safety low. To address this, we have designed a railway catenary construction positioning pulley. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning trolley for railway catenary construction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A positioning trolley for railway catenary construction includes a base plate with multiple wheels at its bottom. Two supporting outer rods are symmetrically arranged at the top left and right ends of the base plate. A lifting inner rod is slidably inserted into each supporting outer rod. A mounting seat is provided at the top of each lifting inner rod. Mounting slots are symmetrically formed on the sides of the two mounting seats that are close to each other. Electric push rods are installed in the mounting slots. Connecting plates are fixedly connected to the extended ends of the two electric push rods that are close to each other. A cable storage rack is detachably installed between the two connecting plates via a snap-fit ​​clamping component. A hydraulic support platform is provided at the top center of the base plate. Two horizontal plates are symmetrically arranged on the top left and right sides of the hydraulic support platform. A vertical rod is provided at the bottom end of each mounting seat away from the lifting inner rod. A limiting block is provided at the bottom end of the vertical rod. An opening is provided at the top of each horizontal plate for the vertical rod to slide through. A snap-fit ​​assembly is provided between the horizontal plate and the vertical rod.

[0007] As a preferred embodiment of this utility model: the snap-fit ​​assembly includes a cavity formed inside the horizontal plate, a groove communicating with the cavity is formed on the top of the horizontal plate, a movable block adapted to it is slidably arranged inside the cavity, a spring is connected to the side wall of the cavity away from the vertical rod, the other end of the spring is connected to the surface of the movable block, a slider adapted to it is slidably arranged inside the groove, the bottom of the slider is connected to the movable block, a snap-fit ​​block is connected to the top of the slider, the snap-fit ​​block is slidably arranged on the top of the horizontal plate, a plurality of snap-fit ​​grooves for the snap-fit ​​block to be embedded are formed on the outer surface of the vertical rod, and a push block is provided on the top of the snap-fit ​​block.

[0008] As a further preferred embodiment of this utility model: a limit bolt is inserted into the upper part of the outer surface of the outer support rod, and a plurality of limit screw holes adapted to the limit bolt are opened on the outer surface of the inner lifting rod.

[0009] As a further preferred embodiment of this utility model: the snap-fit ​​extrusion member includes an abutment plate and a pin, the pin being fixedly installed at the center of one side surface of the abutment plate, and the other side surface of the abutment plate being rotatably connected to the surface of the connecting plate.

[0010] As a further preferred embodiment of this utility model: the plurality of said snap-fit ​​grooves are distributed at equal intervals along the length direction of the vertical rod.

[0011] As a further preferred embodiment of this utility model: the plurality of limiting screw holes are distributed at equal intervals along the length direction of the lifting inner rod.

[0012] The beneficial effects of this utility model are as follows: In the initial state of use, the inner lifting rod is completely inside the outer supporting rod, and the hydraulic support platform is at its lowest position. This facilitates the placement of the cable tray on top of the hydraulic support platform. Then, the push block moves the locking block, separating it from the locking groove. Simultaneously, the hydraulic support platform is activated, lifting the cable tray to a suitable installation position. During this process, the horizontal plate also moves upward, but the vertical rod does not move. Then, the push block is released, and under the spring force, the locking block resets and re-embeds into the corresponding locking groove, forming a locking mechanism. Activate the electric actuator until the two clamping and pressing parts hold the cable storage rack in place, completing the installation of the cable storage rack. The operation is simple, convenient, time-saving, and labor-saving. Next, activate the hydraulic support platform, which lifts the cable storage rack to a suitable working position. At the same time, the horizontal plate moves upward, thereby moving the vertical rod and mounting base upward together. Finally, the position of the lifting inner rod is fixed by screwing the limit bolts into the corresponding limit screw holes. The advantages of this device compared to existing devices are: the installation of the cable storage rack is carried out at a lower position, the installation operation is simple, the operating environment is safe, and it is convenient to use. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0017] The components are as follows: 1. Base plate; 2. Wheels; 3. Outer support rod; 4. Hydraulic support platform; 5. Lifting inner rod; 6. Mounting seat; 7. Limit bolt; 8. Connecting plate; 9. Cable storage rack; 10. Abutment plate; 11. Vertical rod; 12. Horizontal plate; 13. Limit block; 14. Insert post; 15. Electric push rod; 16. Limit screw hole; 17. Snap-fit ​​groove; 18. Snap-fit ​​block; 19. Moving block; 20. Spring; 21. Cavity; 22. Slide groove; 23. Slider; 24. Push block. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] Please see Figure 1-3 In this embodiment of the utility model, a railway catenary construction positioning trolley includes a base plate 1 with multiple wheels 2 at the bottom. Two supporting outer rods 3 are symmetrically arranged at the top left and right ends of the base plate 1. A lifting inner rod 5 is slidably inserted into the supporting outer rod 3. A mounting seat 6 is provided at the top of the lifting inner rod 5. Mounting grooves are symmetrically opened on the side of the two mounting seats 6 that are close to each other. Electric push rods 15 are installed in the mounting grooves. The extended ends of the two electric push rods 15 are close to each other and fixedly connected to a connecting plate 8. A cable storage rack 9 is detachably installed between the two connecting plates 8 through a snap-fit ​​extrusion component. A hydraulic support platform 4 is provided at the middle of the top of the base plate 1. The hydraulic support platform 4 is used to support the cable storage rack 9. Two horizontal plates 12 are symmetrically arranged on the top left and right sides of the hydraulic support platform 4. A vertical rod 11 is provided at the bottom of the mounting seat 6 away from the lifting inner rod 5. A limiting block 13 is provided at the bottom end of the vertical rod 11. An opening for the vertical rod 11 to slide through is opened at the top of the horizontal plate 12. A snap-fit ​​component is provided between the horizontal plate 12 and the vertical rod 11.

[0020] The snap-fit ​​assembly includes a cavity 21 formed inside the horizontal plate 12. A groove 22 communicating with the cavity 21 is formed on the top of the horizontal plate 12. A movable block 19 adapted to the cavity 21 is slidably arranged inside the cavity 21. A spring 20 is connected to the side wall of the cavity 21 away from the vertical rod 11. The other end of the spring 20 is connected to the surface of the movable block 19. A slider 23 adapted to the groove 22 is slidably arranged inside the groove 22. The bottom of the slider 23 is connected to the movable block 19. A snap-fit ​​block 18 is connected to the top of the slider 23. The snap-fit ​​block 18 is slidably arranged on the top of the horizontal plate 12. A plurality of snap-fit ​​grooves 17 for the snap-fit ​​block 18 to be inserted are formed on the outer surface of the vertical rod 11. The plurality of snap-fit ​​grooves 17 are evenly distributed along the length direction of the vertical rod 11. A push block 24 is provided on the top of the snap-fit ​​block 18.

[0021] A limit bolt 7 is inserted into the upper part of the outer surface of the outer support rod 3, and multiple limit screw holes 16 adapted to the limit bolt 7 are opened on the outer surface of the inner lifting rod 5. The multiple limit screw holes 16 are evenly distributed along the length direction of the inner lifting rod 5.

[0022] The snap-fit ​​clamping component includes an abutment plate 10 and a pin 14. The pin 14 is fixedly installed at the center of one side surface of the abutment plate 10, and the other side surface of the abutment plate 10 is rotatably connected to the surface of the connecting plate 8. During installation, the two electric push rods 15 drive the two connecting plates 8 to move closer to each other, thereby driving the two snap-fit ​​clamping components to move closer to each other and clamp the cable storage rack 9, thus completing the installation of the cable storage rack 9. The abutment plate 10 can rotate, and the abutment plate 10 plays a lateral limiting role on the cable storage rack 9.

[0023] Specifically, in the initial state of use, the inner lifting rod 5 is completely inside the outer supporting rod 3, and the hydraulic support platform 4 is in its lowest position, making it convenient for workers to place the cable storage rack 9 on top of the hydraulic support platform 4. Then, the push block 24 pushes the locking block 18 to move, causing the locking block 18 to separate from the locking groove 17. At the same time, the hydraulic support platform 4 is activated, which lifts the cable storage rack 9 to a suitable installation position. During this process, the horizontal plate 12 also moves upward, but the vertical rod 11 does not move. Then, the push block 24 is released, and under the elastic force of the spring 20, the locking block 18 resets and re-embeds into the corresponding locking groove 17, forming a locking connection. Next, activate the electric actuator 15 until the two clamping and pressing parts hold the cable storage rack 9 in place, thus completing the installation of the cable storage rack 9. The operation is simple, convenient, time-saving, and labor-saving. Then, continue to activate the hydraulic support platform 4, which lifts the cable storage rack 9 to a suitable working position. At the same time, the horizontal plate 12 moves upward, thereby moving the vertical rod 11 and the mounting base 6 upward together. Finally, by screwing the limit bolt 7 into the corresponding limit screw hole 16, the position of the lifting inner rod 5 is fixed. The advantages of this device compared to existing devices are that the installation of the cable storage rack 9 is carried out at a lower position, the installation operation is simple, the operating environment is safe, and it is convenient to use.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A railway catenary construction positioning trolley, comprising a base plate (1) with multiple wheels (2) at its bottom; characterized in that: Two supporting outer rods (3) are symmetrically arranged at the top left and right ends of the base plate (1). A lifting inner rod (5) is slidably inserted into the supporting outer rod (3). A mounting seat (6) is provided on the top of the lifting inner rod (5). The two mounting seats (6) are symmetrically provided with mounting grooves on the side close to each other. An electric push rod (15) is installed in the mounting groove. The extended ends of the two electric push rods (15) are close to each other and fixedly connected to a connecting plate (8). The two connecting plates (8) can be detachably installed by a snap-fit ​​clamp. The base plate (1) is equipped with a cable storage rack (9). A hydraulic support platform (4) is provided at the top center of the base plate (1). Two horizontal plates (12) are symmetrically arranged on the left and right sides of the top of the hydraulic support platform (4). A vertical rod (11) is provided at the bottom of the mounting base (6) away from the lifting inner rod (5). A limiting block (13) is provided at the bottom of the vertical rod (11). A through opening is provided at the top of the horizontal plate (12) for the vertical rod (11) to slide through. A snap-fit ​​assembly is provided between the horizontal plate (12) and the vertical rod (11).

2. The railway catenary construction positioning trolley according to claim 1, characterized in that: The snap-fit ​​assembly includes a cavity (21) inside the horizontal plate (12). The top of the horizontal plate (12) is provided with a groove (22) communicating with the cavity (21). A movable block (19) adapted to the cavity (21) is slidably provided inside the cavity (21). A spring (20) is connected to the side wall of the cavity (21) away from the vertical rod (11). The other end of the spring (20) is connected to the surface of the movable block (19). A slider (23) adapted to the groove (22) is slidably provided inside the groove (22). The bottom of the slider (23) is connected to the movable block (19). A snap-fit ​​block (18) is connected to the top of the slider (23). A plurality of snap-fit ​​grooves (17) for the snap-fit ​​block (18) to be inserted are provided on the outer surface of the vertical rod (11). A push block (24) is provided on the top of the snap-fit ​​block (18).

3. The railway catenary construction positioning trolley according to claim 2, characterized in that: The outer surface of the supporting outer rod (3) is fitted with a limiting bolt (7), and the outer surface of the lifting inner rod (5) is provided with a plurality of limiting screw holes (16) that are compatible with the limiting bolt (7).

4. A railway catenary construction positioning trolley according to claim 3, characterized in that: The snap-fit ​​compression member includes an abutment plate (10) and a pin (14). The pin (14) is fixedly installed at the center of one side surface of the abutment plate (10), and the other side surface of the abutment plate (10) is rotatably connected to the surface of the connecting plate (8).

5. A railway catenary construction positioning trolley according to claim 2, characterized in that: The multiple snap-fit ​​slots (17) are evenly distributed along the length of the vertical rod (11).

6. A railway catenary construction positioning trolley according to claim 5, characterized in that: The snap-fit ​​block (18) is slidably disposed on the top of the horizontal plate (12).

7. A railway catenary construction positioning trolley according to claim 3, characterized in that: The multiple limiting screw holes (16) are evenly distributed along the length direction of the lifting inner rod (5).

Images