Lifting platform structure of rail flat car

Abstract

The utility model relates to a lifting platform structure of a rail flat car. The technical problem that the lifting stability is poor due to the fact that an existing platform shakes during lifting is solved. Comprising a platform lifting frame vertically arranged at the upper end of a plate trailer base, a lifting platform is arranged in the platform lifting frame, the platform lifting frame is provided with two symmetrically-arranged outer frames, vertically-arranged inner frames are arranged in the two outer frames correspondingly, and the two inner frames are symmetrically arranged; vertical guide grooves are formed between the two sides of the outer frame and the two sides of the inner frame respectively, a guide wheel assembly is arranged on the platform lifting frame, a pulley assembly is arranged on the platform lifting frame, a pull rope connected with the platform lifting frame is wound around the pulley assembly, and one end of the pull rope is connected with the lifting driver. The lifting platform has the advantages that by means of the design structure of the platform lifting frame, the lifting platform is more stable in the ascending or descending process, meanwhile, the lifting platform is connected with the platform lifting frame through the guide wheel assembly, and therefore normal operation of the lifting platform is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting platform equipment, and in particular relates to a lifting platform structure of a rail flatbed vehicle. Background Art

[0002] A lifting platform is a multifunctional lifting and loading and unloading mechanical equipment. Currently, in order to cope with some high-altitude maintenance work, it is often necessary to work on a lifting platform. When working at higher parts, the lifting platform also needs to be further raised to carry out maintenance work. Therefore, the lifting support structure is generally composed of several rods installed in a cross-rotating manner. Although this structure is convenient to use, it is only connected to each other by a rotating shaft, which is prone to aging problems. At the same time, it will cause the platform itself to shake during lifting, resulting in poor lifting stability and posing a safety hazard. Summary of the Invention

[0003] The purpose of the utility model is to provide a lifting platform structure for a rail flatbed car in order to solve the above problems.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a lifting platform structure for a railroad flatbed car, comprising a platform lifting frame vertically arranged at the upper end of a flatbed car base, a lifting platform vertically movably arranged in the platform lifting frame, the platform lifting frame having two vertically and symmetrically arranged outer frames, each of which is provided with a vertically arranged inner frame, and the two inner frames are symmetrically arranged, vertically arranged guide grooves are formed between the two sides of the outer frames and the two sides of the inner frames, and the platform lifting frame is provided with a guide wheel assembly vertically sliding in the guide groove, the platform lifting frame is provided with a pulley assembly, and a pull rope connected to the platform lifting frame is wound around the pulley assembly, and one end of the pull rope is connected to a lifting drive. The structure is simple, the lifting platform is connected to the platform lifting frame via the guide wheel assembly, and the lifting platform is connected to the lifting drive via the pulley assembly and the pull rope. The design structure of the platform lifting frame can ensure the lifting stability of the lifting platform when it starts operating.

[0005] In the aforementioned railroad flatbed lift platform structure, the lift platform includes a platform base, with vertical platform columns disposed at each of the four corners of the platform base. A rectangular platform frame is disposed above the platform columns. The platform columns and the platform frame ensure a usable range for workers and prevent them from falling from the platform base.

[0006] In the aforementioned railroad flatbed lift platform structure, the platform base is rectangular and includes several parallel base beams. A plurality of transverse ribs and longitudinal ribs are disposed at the upper end of the platform base. These ribs intersect to form a grid panel at the upper end of the platform base. This grid panel, composed of the transverse and longitudinal ribs, is used for standing by staff, while the base beams reinforce the transverse and longitudinal ribs.

[0007] In the aforementioned railroad flatbed lift platform structure, the guide wheel assembly includes four guide seats, each located at the four corners of the platform base. The guide seats slide within guide grooves and are equipped with a plurality of guide wheels. The guide wheels are used to move the platform base, and the guide seats, disposed within the guide grooves, serve as sliding guides.

[0008] In the above-mentioned lifting platform structure of a rail flatbed car, the guide seat is L-shaped and includes a vertical part whose lower end is connected to the platform base, and the upper end of the vertical part is connected to a horizontal part that is perpendicular to the vertical part and horizontally passes through the guide groove.

[0009] In the aforementioned railroad flatbed lift platform structure, each guide seat is equipped with two guide wheels, one located on either side of the guide groove and the other resting against the side of the inner frame. The two guide wheels abut against the inner frame, acting as a limiter to prevent the lift platform from tilting during movement.

[0010] In the above-mentioned lifting platform structure of a rail flatbed car, the pulley assembly includes a plurality of pulley bodies arranged at the upper end of the platform lifting frame, and the platform base is provided with a plurality of connecting parts that cooperate with the pulley bodies and are used to connect the pull ropes.

[0011] In the above-mentioned lifting platform structure of a rail flatbed car, the lifting drive is any one of an electric winch, a hoist and an electric hoist.

[0012] In the above-mentioned lifting platform structure of a rail flatbed car, a rectangular base is provided at the upper end of the car base, and the lower ends of the outer frame and the inner frame are respectively fixed on the rectangular base; or, the lower end of the outer frame or the inner frame is fixed on the rectangular base and the outer frame is movably provided in the vertical direction relative to the inner frame.

[0013] In the above-mentioned lifting platform structure of a railroad flatbed car, an inclined reinforcement rod is respectively provided between the two outer frames on the same side, and the two reinforcement rods are arranged crosswise. The cross-arrangement of the two reinforcement rods ensures the stability of the two platform lifting frames.

[0014] Compared with the existing technology, the advantages of this utility model are:

[0015] 1. The device utilizes the design structure of the platform lifting frame to make the lifting platform more stable during the ascent or descent process. At the same time, the lifting platform is connected to the platform lifting frame through the guide wheel assembly, thereby ensuring the normal operation of the lifting platform.

[0016] 2. The horizontal part of the guide wheel assembly of the device is set in the guide groove, and the two guide wheel bodies on the horizontal part are respectively against the inner frame. The two guide wheel bodies play both a sliding and a stabilizing role, which reduces the tilting phenomenon of the platform base when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the platform lifting frame and the rectangular base in the utility model.

[0019] Figure 3 It is a structural diagram of the platform lifting frame in the utility model.

[0020] Figure 4 It is a structural diagram of the lifting platform in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the guide wheel assembly in the utility model.

[0022] In the figure: a cart base 1, a rectangular base 11, a platform lifting frame 2, an outer frame 21, an inner frame 22, a guide groove 23, a reinforcing rod 24, a lifting platform 3, a platform base 31, a platform column 32, a platform frame 33, a base beam 34, transverse ribs 35, longitudinal ribs 36, a grid plate 37, a guide wheel assembly 4, a guide seat 41, a guide wheel body 42, a vertical portion 43, a horizontal portion 44, a pulley assembly 5, a pulley body 51, and a connecting portion 52. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5As shown, a lifting platform structure for a railroad flatbed vehicle includes a platform lift frame 2 vertically mounted on the upper end of a flatbed vehicle base 1. A lifting platform 3 is vertically and movably mounted within the platform lift frame 2. The platform lift frame 2 has two vertically and symmetrically mounted outer frames 21. Each outer frame 21 includes a vertically mounted inner frame 22, and the two inner frames 22 are symmetrically arranged. Vertical guide grooves 23 are formed between the outer frames 21 and the inner frames 22. The platform lift frame 2 is provided with a guide wheel assembly 4 that slides vertically within the guide grooves 23. The platform lift frame 2 is provided with a pulley assembly 5, and a pull rope is wound around the pulley assembly 5, which is connected to the platform lift frame 2. One end of the pull rope is connected to a lifting actuator. The structure is simple. The lifting platform 3 is connected to the platform lift frame 2 via the guide wheel assembly 4, and the lifting platform 3 is connected to the lifting actuator via the pulley assembly 5 and the pull rope. The design of the platform lift frame 2 ensures the lifting stability of the lifting platform 3 when the vehicle is in operation.

[0025] like Figure 4 As shown, the lifting platform 3 includes a platform base 31, with vertical platform columns 32 provided at the four corners of the platform base 31, and a rectangular platform frame 33 provided at the upper ends of the platform columns 32. The platform columns 32 and the platform frame 33 can ensure the use range of the staff and prevent the staff from falling from the platform base 31.

[0026] The platform base 31 is rectangular and has several parallel base beams 34 within it. At the top of the platform base 31, there are several transverse ribs 35 and several longitudinal ribs 36. These ribs 35 and 36 intersect to form a mesh panel 37 at the top of the platform base 31. This mesh panel 37, composed of these ribs, is used for staff to stand on, while the base beams 34 reinforce these ribs.

[0027] Combine Figure 4 and Figure 5 As shown, the guide wheel assembly 4 includes four guide seats 41 respectively arranged at the four corners of the platform base 31. The guide seats 41 are slidably inserted into the guide groove 23, and a plurality of guide wheel bodies 42 are provided on the guide seats 41. The guide wheel bodies 42 are used to move the platform base 31, and the guide seats 41 are arranged in the guide groove 23 to play a sliding guide role.

[0028] The guide seat 41 is L-shaped and includes a vertical portion 43 connected to the platform base 31 at its lower end, and a horizontal portion 44 connected to the upper end of the vertical portion 43 and extending horizontally through the guide slot 23 .

[0029] Combine Figure 3 and Figure 5As shown, each guide seat 41 is provided with two guide wheels 42, which are respectively located on both sides of the guide groove 23 and are respectively disposed against the side of the inner frame 22. The two guide wheels 42 abut against the inner frame 22, acting as a limiter to prevent the lifting platform 3 from tilting when moving.

[0030] Combine Figure 3 and Figure 4 As shown, the pulley assembly 5 includes a plurality of pulley bodies 51 provided on the upper end of the platform lifting frame 2, and a plurality of connecting parts 52 that cooperate with the pulley bodies 51 and are used to connect the pull ropes are provided on the platform base 31.

[0031] The lifting drive is any one of an electric winch, a hoist and an electric hoist.

[0032] like Figure 3 As shown, a rectangular base 11 is provided at the upper end of the cart base 1, and the lower ends of the outer frame 21 and the inner frame 22 are respectively fixed on the rectangular base 11; or, the lower end of the outer frame 21 or the inner frame 22 is fixed on the rectangular base 11 and the outer frame 21 is movably provided in the vertical direction relative to the inner frame 22.

[0033] like Figure 2 As shown, an inclined reinforcement rod 24 is provided between the two outer frames 21 on the same side, and the two reinforcement rods 24 are arranged crosswise. The crosswise arrangement of the two reinforcement rods 24 ensures the stability of the two platform lifting frames 2.

[0034] The principle of this embodiment is:

[0035] The connecting portion 52 of the platform base 31 is connected to the roller body 51 through a pull rope, and the end of the pull rope away from the connecting portion 52 is connected to the lifting drive. The platform base 31 is arranged between the two platform lifting frames 2, and the guide seat 41 on the platform base 31 is connected to the platform lifting frame 2. The horizontal portion 44 of the guide seat 41 is arranged in the guide groove 23, and the guide wheel body 42 on the horizontal portion 44 is abutted against the inner frame 22. When the lifting drive is running, the lifting platform 3 is driven to rise or fall through the pull rope.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0037] Although this document frequently uses terms such as cart base 1, rectangular base 11, platform lifting frame 2, outer frame 21, inner frame 22, guide groove 23, reinforcement rod 24, lifting platform 3, platform base 31, platform column 32, platform frame 33, base beam 34, transverse rib 35, longitudinal rib 36, grid plate 37, guide wheel assembly 4, guide seat 41, guide wheel body 42, vertical portion 43, horizontal portion 44, pulley assembly 5, pulley body 51, and connecting portion 52, the possibility of using other terms is not excluded. The use of these terms is merely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A lifting platform structure for a railroad flatbed car, comprising a platform lifting frame (2) vertically arranged on the upper end of a car base (1), wherein a lifting platform (3) is vertically movable in the platform lifting frame (2), characterized in that: The platform lifting frame (2) has two vertically and symmetrically arranged outer frames (21), and the two outer frames (21) are respectively provided with vertically arranged inner frames (22), and the two inner frames (22) are symmetrically arranged with each other. Vertically arranged guide grooves (23) are respectively formed between the two sides of the outer frames (21) and the two sides of the inner frames (22), and the platform lifting frame (2) is provided with a guide wheel assembly (4) vertically slidingly arranged in the guide groove (23), and the platform lifting frame (2) is provided with a pulley assembly (5), and a pull rope connected to the platform lifting frame (2) is wound around the pulley assembly (5), and one end of the pull rope is connected to the lifting drive.

2. The lifting platform structure of a rail flatbed car according to claim 1, characterized in that: The lifting platform (3) includes a platform base (31), and the four corners of the platform base (31) are respectively provided with vertically arranged platform columns (32), and the upper ends of the platform columns (32) are provided with a rectangular platform frame (33).

3. The lifting platform structure of a rail flatbed car according to claim 2, characterized in that: The platform base (31) is in the shape of a rectangular frame and is provided with a plurality of base cross beams (34) arranged parallel to each other in the platform base (31). A plurality of transverse ribs (35) and a plurality of longitudinal ribs (36) arranged transversely are provided at the upper end of the platform base (31). The transverse ribs (35) and the longitudinal ribs (36) are arranged to cross each other to form a grid plate (37) located at the upper end of the platform base (31).

4. A lifting platform structure for a railroad flatbed car according to claim 2 or 3, characterized in that: The guide wheel assembly (4) includes four guide seats (41) respectively arranged on the four corners of the platform base (31). The guide seats (41) are slidably inserted into the guide grooves (23), and a plurality of guide wheel bodies (42) are provided on the guide seats (41).

5. The lifting platform structure of a rail flatbed car according to claim 4, characterized in that: The guide seat (41) is L-shaped and includes a vertical portion (43) whose lower end is connected to the platform base (31), and the upper end of the vertical portion (43) is connected to a horizontal portion (44) that is perpendicular to the vertical portion (43) and horizontally passes through the guide groove (23).

6. The lifting platform structure of a rail flatbed car according to claim 5, characterized in that: Each guide seat (41) is provided with two guide wheel bodies (42), the two guide wheel bodies (42) are respectively located on both sides of the guide groove (23) and the two guide wheel bodies (42) are respectively arranged against the side of the inner frame (22).

7. The lifting platform structure of a railroad flatbed car according to claim 2, characterized in that: The pulley assembly (5) includes a plurality of pulley bodies (51) arranged at the upper end of the platform lifting frame (2), and the platform base (31) is provided with a plurality of connecting parts (52) that cooperate with the pulley bodies (51) and are used to connect the pull ropes.

8. The lifting platform structure of a railroad flatbed car according to claim 1, characterized in that: The lifting driver is any one of an electric winch, a hoist and an electric hoist.

9. The lifting platform structure of a railroad flatbed car according to claim 1, characterized in that: The upper end of the cart base (1) is provided with a rectangular base (11), and the lower ends of the outer frame (21) and the inner frame (22) are respectively fixedly arranged on the rectangular base (11); or, the lower end of the outer frame (21) or the inner frame (22) is fixedly arranged on the rectangular base (11) and the outer frame (21) is movably arranged in the vertical direction relative to the inner frame (22).

10. The lifting platform structure of a railroad flatbed car according to claim 1, characterized in that: An obliquely arranged reinforcement rod (24) is respectively provided between the two outer frames (21) and located on the same side, and the two reinforcement rods (24) are arranged in a cross manner.

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