Movable escalator suitable for railway wagon and railway wagon

Abstract

The portable escalator comprises an escalator body assembly and two fixing devices, a hanging claw assembly is arranged at the upper end of the escalator body assembly, two supporting legs are arranged at the lower end of the escalator body assembly at intervals, and an included angle is formed between the supporting legs and the extending direction of the escalator body assembly. According to the movable ladder suitable for the railway wagon, the ladder body assembly can be directly hooked through the hook assembly for use, the hook assembly can be matched with the fixing device to limit the two ends of the ladder body assembly, and the stability of the ladder body assembly in the using process is guaranteed; the supporting legs and the ladder body form the included angle to change the direction angle of force, so that the supporting stability is improved, the escalator can be erected at the corresponding position of the vehicle according to needs, the escalator is taken away and stored after being used, and the situation that space is occupied and movement is hindered is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway freight cars, and more specifically, relates to a movable escalator applicable to railway freight cars and a railway freight car. Background Art

[0002] Currently, for the actual needs of facilitating the observation of the cargo loading situation, dealing with emergencies inside the vehicle, or entering and exiting the vehicle for maintenance, maintenance, etc., fixed escalator assemblies are provided on various types of freight cars. In some types of freight cars, even when conditions permit, escalator assemblies are provided at both ends of the car body. However, in most cases, due to the limitation of the setting of large components such as the operation room on the car body, the escalator assembly can generally only be set at one end where the space conditions permit.

[0003] With the development of freight car technology, under the background of increasingly strict environmental protection requirements, more and more goods are transported using covered hopper cars or tank-type equipment that prevent dust and volatile gas from escaping. Among them, since the covered hopper car is provided with a top cover system on the vehicle top and generally complex braking devices or unloading control systems are also provided at both ends of the car body, the remaining space is relatively tight. Even, due to the limitation of the top cover, etc., the escalator assembly traditionally set at the position directly above the car body simply cannot be set anymore. The uncertainty of the setting position has greatly increased the difficulty of escalator setting or the actual needs of entering the vehicle for operation or observation cannot be realized even if it is set. Thus, designing a movable and portable escalator has very important significance.

[0004] By creating a new escalator technical solution that can be used in a fixed position or flexibly moved, the use purpose can be conveniently achieved, and at the same time, it can be quickly removed when not needed. In this way, not only the convenience of use is realized, but also the application regulation of the traditional mandatory escalator can be broken. Especially for tank-type equipment, the inner ladder set in the tank is more likely to be affected by corrosion of the medium in the tank. Therefore, this has a very positive promoting effect on simplifying the configuration and improving the economy of the vehicle. Secondly, this movable escalator can be used in the traditional inclined manner or directly hung on the side wall of the vehicle, and the promotion effect on entering and exiting the car body and reducing the subsequent maintenance and daily maintenance workload is also relatively obvious. In addition, this technical solution also has the characteristics of simple structure, flexible setting, and firm locking. Thus, it also has a good promoting effect on meeting diverse actual needs and enriching the selectivity of application scenarios. Summary of the Invention

[0005] The object of the present invention is to address the deficiencies existing in the prior art and provide a movable escalator applicable to railway freight cars, so as to solve the problem that the escalator assembly can generally only be set at one end where the space conditions permit due to the limitation of the setting of large components such as the operation room on the car body, and the specific use is not flexible and not conducive to high-altitude operation.

[0006] To achieve the above object, the present invention provides a movable escalator applicable to railway wagons, comprising:

[0007] A ladder body assembly, at the upper end of the ladder body assembly, there is a hanging claw assembly provided, at the lower end of the ladder body assembly, two supporting feet are provided at intervals, and the supporting feet are arranged at an angle with the extending direction of the ladder body assembly;

[0008] Two fixing devices, the fixing devices are detachably connected to the supporting feet, and the fixing devices are used for connecting with the vehicle body.

[0009] Optionally, the hanging claw assembly includes:

[0010] Two arc-shaped hooks, the two arc-shaped hooks are arranged at intervals at the top end of the ladder body assembly, and the root of the arc-shaped hook is rotationally connected to the ladder body assembly.

[0011] Optionally, at the upper end of the ladder body assembly, there is a connection hole provided, at the root of the arc-shaped hook, there is a threaded section provided, and the threaded section passes through the connection hole and is exposed;

[0012] Two locking nuts, the two locking nuts are threadedly connected to the threaded section and are respectively located at both ends of the connection hole, and the two locking nuts can adjust the length of the threaded section exposed outside the connection hole.

[0013] Optionally, the fixing device includes:

[0014] Two connecting seats, the connecting seats are matched with the supporting feet, and the connecting seats include:

[0015] A base, the base is arranged on the floor of the vehicle body;

[0016] Two vertical plates, the two vertical plates are arranged at intervals on the base, and the supporting feet can be clamped between the two vertical plates;

[0017] A draw pin, the draw pin is arranged horizontally and can penetrate through the vertical plate and the supporting foot.

[0018] Optionally, a friction pad or a magnetic suction cup is arranged at the bottom of the connecting seat, and the connecting seat is detachably connected to the vehicle body.

[0019] Optionally, it further includes:

[0020] A spring support, the spring support is arranged on one side of the connecting seat, and a spring is arranged between the draw pin and the spring support, and the spring provides a force for the draw pin to penetrate through the vertical plate;

[0021] A limit sliding plate, the limit sliding plate is vertically slidably arranged between the two vertical plates;

[0022] Elastic mechanism, the elastic mechanism is arranged at the lower end of the limit sliding plate and is used to provide a force to make the limit sliding plate move upward;

[0023] When not in use, the elastic mechanism drives the limit sliding plate upward to prevent the draw pin from penetrating through the vertical plate and the supporting leg;

[0024] When in use, the supporting leg drives the limit sliding plate to move downward to avoid and allow the draw pin to penetrate through the vertical plate and the supporting leg.

[0025] Optionally, sliding grooves are respectively arranged on the adjacent sides of the two vertical plates, guiding blocks matched with the sliding grooves are arranged on the limit sliding plate, the elastic mechanism comprises a limit column and a supporting spring, one end of the supporting spring is sleeved on the limit column, and the other end of the supporting spring is connected with the lower end of the limit sliding plate.

[0026] Optionally, a guiding port is arranged at the opening of a through hole for penetrating the draw pin on the supporting leg.

[0027] Optionally, it further comprises a groove body, the groove body is embedded on the vehicle body, the bottom end of the base is rotatably connected in the groove body, the base can be turned over to enable the vertical plate and the draw pin to be received in the groove body, and the base is flush with the vehicle body surface after being turned over.

[0028] The present invention also provides a railway freight car, including the above-mentioned movable escalator applicable to railway freight cars.

[0029] The present invention provides a movable escalator applicable to railway freight cars, and its beneficial effects are as follows:

[0030] The movable escalator applicable to railway freight cars can be directly hooked and used through the hook assembly, or the hook assembly can be used in cooperation with the fixing device to limit both ends of the ladder body assembly, ensuring the stability of the ladder body assembly during use, adapting to different on-vehicle environments for selection and use, and the supporting leg and the ladder body assembly form an included angle to change the direction angle of the force, improving the supporting stability. Furthermore, the escalator can be erected at the corresponding position of the vehicle as needed, and the escalator can be removed and stored after use, avoiding occupying space and hindering activities.

[0031] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above-mentioned and other objects, features and advantages of the present invention will become more obvious. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0033] Figure 1Shows a schematic structural diagram of a movable escalator applicable to a railway freight car according to Embodiment 1 of the present invention.

[0034] Figure 2 Shows a front view of a movable escalator applicable to a railway freight car according to Embodiment 1 of the present invention.

[0035] Figure 3 Shows a schematic structural diagram of a fixing device of a movable escalator applicable to a railway freight car according to Embodiment 1 of the present invention.

[0036] Figure 4 Shows a schematic structural diagram of a standby state of a fixing device of a movable escalator applicable to a railway freight car according to Embodiment 1 of the present invention.

[0037] Figure 5 Shows a schematic structural diagram of a vertical plate of a movable escalator applicable to a railway freight car according to Embodiment 1 of the present invention.

[0038] Figure 6 Shows a schematic structural diagram of a friction pad of a movable escalator applicable to a railway freight car according to Embodiment 2 of the present invention.

[0039] Figure 7 Shows a schematic structural diagram of a structure in which the turning axis of the base of a movable escalator applicable to a railway freight car is perpendicular to the extending direction of the ladder body according to Embodiment 3 of the present invention.

[0040] Figure 8 Shows a schematic structural diagram of a structure in which the turning axis of the base of a movable escalator applicable to a railway freight car is parallel to the extending direction of the ladder body according to an embodiment of the present invention.

[0041] Explanation of reference numerals:

[0042] 1. Ladder body assembly; 2. Arc-shaped hook; 3. Support leg; 4. Base; 5. Vertical plate; 6. Draw pin; 7. Limit slide plate; 8. Groove body; 9. Friction pad. Detailed implementation manners

[0043] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0044] As Figure 1 shown, a movable escalator applicable to a railway freight car includes:

[0045] The ladder body consists of 1. A hanging claw assembly is provided at the upper end of the ladder body 1. Two supporting feet 3 are provided at intervals at the lower end of the ladder body 1, and the supporting feet 3 are arranged at an angle to the extending direction of the ladder body 1.

[0046] Two fixing devices, the fixing devices are detachably connected to the supporting feet 3, and the fixing devices are used to connect to the vehicle body.

[0047] Specifically, the ladder body 1 can be directly hooked and used through the hook assembly, or the hook assembly can be used in cooperation with the fixing device to limit the two ends of the ladder body 1, ensuring the stability of the ladder body 1 during use and adapting to different vehicle-mounted environments for selection. Moreover, the included angle between the supporting feet 3 and the ladder body changes the direction angle of the force, improving the supporting stability. Furthermore, the ladder can be erected at the corresponding position of the vehicle as needed, and after use, the ladder can be removed and stored to avoid occupying space and hindering activities.

[0048] Furthermore, the angle between the supporting feet 3 and the ladder body 1 is not less than 163° - 180°. The stepping force received by the ladder body 1 is converted and decomposed into the normal pressure and sliding force acting on the fixing device or the ground through the supporting feet 3. Compared with traditional ladders, the normal pressure on the fixing device or the ground is increased, the sliding force is reduced, and the stability of use is improved.

[0049] As Figure 1 shown, in this embodiment, the hanging claw assembly includes:

[0050] Two arc-shaped hooks 2, the two arc-shaped hooks 2 are arranged at intervals at the top end of the ladder body 1, and the root of the arc-shaped hook 2 is rotatably connected to the ladder body 1.

[0051] Specifically, the rotatable connection between the arc-shaped hook 2 and the ladder body 1 provides the compensation ability of rotational freedom, automatically adjusting the hooking stability to the most stressed stable posture, adapting to different hooking angles for use. Furthermore, even in a corner or narrow area, the angles of the two arc-shaped hooks 2 can be adjusted to form an inner-eight or outer-eight structure, ensuring that both arc-shaped hooks 2 can be hooked and positioned, rather than the hooks of ordinary ladders being limited by space and only one being able to be hooked and connected for positioning.

[0052] As Figure 1 shown, in this embodiment, a connection hole is provided at the upper end of the ladder body 1, and a threaded section is provided at the root of the arc-shaped hook 2, and the threaded section passes through the connection hole and is exposed.

[0053] Two locking nuts, the two locking nuts are threadedly connected to the threaded section and are respectively located at both ends of the connection hole, and the two locking nuts can adjust the length of the threaded section exposed from the connection hole.

[0054] Specifically, the cooperation between the locking nut and the threaded section ensures the rotational freedom of the arc hook 2. At the same time, the exposed length of the threaded section can be adjusted, thereby adjusting the relative position between the ladder body assembly 1 and the arc hook 2, providing length compensation to adapt to different inclination angles and connection errors with the fixing device. Meanwhile, compared with the fixed hook escalator, the length of the entire escalator is adjusted, enabling personnel on the ground to hook at different heights, avoiding the situation of being unable to reach due to being too high or the bottom of the escalator touching the ground and the upper arc hook 2 being unable to be tightly hooked due to the overall length being too long.

[0055] As Figures 2 - 5 shown, in this embodiment, the fixing device includes:

[0056] Two connecting seats, which cooperate with the support feet 3. The connecting seat includes:

[0057] A base 4, which is arranged on the floor of the vehicle body;

[0058] Two vertical plates 5, which are arranged on the base 4 at intervals, and the support feet 3 can be clamped between the two vertical plates 5;

[0059] A draw pin 6, which is arranged horizontally and can penetrate the vertical plate 5 and the support feet 3.

[0060] Specifically, the fixing device uses the draw pin 6 as the rotation axis of the ladder body assembly 1, facilitating the adjustment of the angle of the ladder body assembly 1 and restricting the movement of the ladder body assembly 1 through the draw pin 6.

[0061] As Figure 6 shown, in this embodiment, a friction pad 9 or a magnetic chuck is arranged at the bottom of the connecting seat, and the connecting seat is detachably connected to the vehicle body.

[0062] Specifically, the fixing device is detachably connected to the vehicle body. After the fixing device is fixed on the vehicle body during use, it is connected for use. The friction pad 9 or the magnetic chuck ensures stable support and avoids sliding. To ensure stable connection and positioning, grooves can also be provided at corresponding positions, and flap plates can be added to the grooves. When in use, the base 4 of the fixing device is embedded in the grooves, and after use, the flap plates are flipped to fill the grooves.

[0063] Furthermore, the friction pad 9 is a rubber pad for increasing friction. The friction pad 9 or the magnetic chuck can also be directly arranged on the support feet 3 for temporary emergency use when there is no fixing device or the fixing device is damaged.

[0064] As Figures 3 - 4 shown, in this embodiment, it further includes:

[0065] A spring support, which is arranged on one side of the connecting seat. A spring is arranged between the draw pin 6 and the spring support, and the spring provides the force for the draw pin 6 to pass through the vertical plate 5;

[0066] A limit slide plate 7, which is vertically slidably arranged between the two vertical plates 5;

[0067] Elastic mechanism, which is arranged at the lower end of the limit slide plate 7 and is used to provide a force to make the limit slide plate 7 move upward;

[0068] When not in use, the elastic mechanism drives the limit slide plate 7 upward to prevent the drawpin 6 from penetrating through the vertical plate 5 and the support leg 3;

[0069] When in use, the support leg 3 drives the limit slide plate 7 downward to avoid it and enable the drawpin 6 to penetrate through the vertical plate 5 and the support leg 3.

[0070] Specifically, through holes matching the drawpin 6 are respectively arranged on the vertical plate 5 and the support leg 3. When the ladder body assembly 1 and the fixing device are not assembled, the limit slide plate 7 blocks the through hole on the vertical plate 5. During assembly, the support leg 3 squeezes the limit slide plate 7 to move, enabling the drawpin 6 to automatically penetrate through the vertical plate 5 and the support leg 3 through the spring. Then, the drawpin 6 passes through the through hole to connect the support leg 3 and the fixing device, allowing a single person to also perform the assembly connection;

[0071] During disassembly, the two support legs 3 need to be separated simultaneously, so at least two people are required to operate synchronously. The two people respectively pull out the two drawpins 6 and move the support legs 3 to prevent passers-by from knocking down the escalator or putting away the escalator before it is fully used.

[0072] Furthermore, the spring can be either a compression spring or a tension spring. A housing cover is arranged on the outer periphery of the spring for protection to prevent sundries from jamming the spring.

[0073] Such as Figure 5 As shown, in this embodiment, sliding grooves are respectively arranged on the adjacent sides of the two vertical plates 5. Guide blocks matching the sliding grooves are arranged on the limit slide plate 7. The elastic mechanism includes a limit post and a support spring. One end of the support spring is sleeved on the limit post, and the other end of the support spring is connected to the lower end of the limit slide plate 7.

[0074] Specifically, the support spring provides the force for the limit slide plate 7 to block the through hole on the vertical plate 5.

[0075] In this embodiment, a guide opening is arranged at the opening of the through hole for penetrating the drawpin 6 on the support leg 3.

[0076] Specifically, the trumpet-shaped guide opening facilitates the penetration of the drawpin 6 into the support leg 3.

[0077] Such as Figures 7 - 8 As shown, in this embodiment, it further includes a groove body 8. The groove body 8 is embedded in the vehicle body. The bottom end of the base 4 is rotatably connected in the groove body 8. The base 4 can be flipped to enable the vertical plate 5 and the drawpin 6 to be received in the groove body 8. After the base 4 is flipped, it is flush with the surface of the vehicle body.

[0078] Specifically, by arranging the fixing device in a flip-up manner on the vehicle body, the fixing device is flipped and hidden when not in use to avoid damaging the flatness of the vehicle body surface due to the fixing device.

[0079] Furthermore, the rotation axis can be parallel or perpendicular to the extension direction of the ladder body assembly 1, and a simple hinge structure can be formed. A water leakage port is provided in the tank body 8 to avoid water accumulation.

[0080] The present invention also provides a railway freight car, including the above-mentioned movable escalator applicable to railway freight cars.

[0081] Embodiment 1

[0082] As Figures 1 - 5 shown, the fixing device is fixedly arranged on the car body. During use, the car body is first hooked by the hook assembly. After confirming that the hooking is stable, the supporting leg 3 is connected to the fixing device, so that the upper end of the ladder body assembly 1 is fixed by the hook assembly, and the lower end of the ladder body assembly 1 is fixed by the fixing device, ensuring that the ladder body assembly 1 forms a stable triangle. After use, two people simultaneously pull out the draw pin 6 and lift the ladder body assembly 1 to separate the fixing device and the supporting leg 3.

[0083] Embodiment 2

[0084] As Figure 6 shown, the fixing device is detachably arranged on the car body. During use, the car body is first hooked by the hook assembly. After confirming that the hooking is stable, the fixing device is installed. The fixing device is fixed by the magnetic attraction sheet, or is placed on the car body through the friction pad 9 to increase the frictional resistance by using the friction pad 9. After the fixing device is placed, the supporting leg 3 is connected to the fixing device, so that the upper end of the ladder body assembly 1 is fixed by the hook assembly, and the lower end of the ladder body assembly 1 is fixed by the fixing device, ensuring that the ladder body assembly 1 forms a stable triangle. After use, two people simultaneously pull out the draw pin 6 and lift the ladder body assembly 1 to separate the fixing device and the supporting leg 3, and then separate the fixing device and the car body.

[0085] Embodiment 3

[0086] As Figures 7 - 8 shown, the fixing device is rotatably arranged on the car body. During use, the car body is first hooked by the hook assembly. After confirming that the hooking is stable, the fixing device is rotated to expose the fixing device, and then the supporting leg 3 is connected to the fixing device, so that the upper end of the ladder body assembly 1 is fixed by the hook assembly, and the lower end of the ladder body assembly 1 is fixed by the fixing device, ensuring that the ladder body assembly 1 forms a stable triangle. After use, two people simultaneously pull out the draw pin 6 and lift the ladder body assembly 1 to separate the fixing device and the supporting leg 3, and then rotate and hide the fixing device to avoid the fixing device being exposed and hindering passage. At this time, to ensure the safety of rotation, the base 4 can be enlarged so that the vertical projection of the fixing device is not exposed outside the base 4.

[0087] As Figure 7 shown, the rotation axis of the base 4 is perpendicular to the extension direction of the ladder body assembly 1. The base 4 is rotated outward to the vehicle to expose the fixing device. After the base 4 is rotated, it is directly lapped on the car body, and the force of the ladder body assembly 1 is transmitted to the outside of the vehicle.

[0088] As Figure 8 shown, the axis of rotation of the base 4 is parallel to the extension direction of the ladder body assembly 1. The base 4 is flipped towards the head or tail of the vehicle to expose the fixing device. After the base 4 is flipped, it is directly lapped on the vehicle body, and the force of the ladder body assembly 1 is transmitted to the outside of the vehicle.

[0089] The embodiments of the present invention have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A movable escalator applicable to railway freight cars, characterized in that, Comprising: A ladder body assembly, a hanging claw assembly is provided at the upper end of the ladder body assembly, two supporting feet are provided at intervals at the lower end of the ladder body assembly, and the supporting feet are arranged at an angle with the extending direction of the ladder body assembly; Two fixing devices, the fixing devices are detachably connected to the supporting feet, and the fixing devices are used for connecting with the vehicle body.

2. The movable escalator applicable to railway wagons according to claim 1, wherein The hanging claw assembly includes: Two arc-shaped hooks, the two arc-shaped hooks are arranged at intervals at the top end of the ladder body assembly, and the root of the arc-shaped hook is rotatably connected to the ladder body assembly.

3. The movable escalator applicable to railway wagons according to claim 1, characterized in that, A connection hole is provided at the upper end of the ladder body assembly, a threaded section is provided at the root of the arc-shaped hook, and the threaded section passes through the connection hole and is exposed; Two locking nuts, the two locking nuts are threadedly connected to the threaded section and are respectively located at both ends of the connection hole, and the two locking nuts can adjust the length of the threaded section exposed from the connection hole.

4. The movable escalator applicable to railway freight cars according to claim 1, wherein The fixing device includes: Two connection seats, the connection seats cooperate with the supporting feet, and the connection seats include: A base, the base is arranged on the floor of the vehicle body; Two vertical plates, the two vertical plates are arranged at intervals on the base, and the supporting feet can be clamped between the two vertical plates; A draw pin, the draw pin is arranged horizontally and can penetrate through the vertical plate and the supporting foot.

5. The movable escalator applicable to railway freight cars according to claim 4, wherein A friction pad or a magnetic suction cup is provided at the bottom of the connection seat, and the connection seat is detachably connected to the vehicle body.

6. The movable escalator applicable to railway wagons according to claim 4, characterized in that, Further comprising: A spring support, the spring support is arranged on one side of the connection seat, a spring is arranged between the draw pin and the spring support, and the spring provides a force for the draw pin to penetrate through the vertical plate; A limit slide plate, the limit slide plate is vertically slidably arranged between the two vertical plates; An elastic mechanism, the elastic mechanism is arranged at the lower end of the limit slide plate and is used for providing a force for the limit slide plate to move upward; When not in use, the elastic mechanism drives the limit slide plate upward to block the draw pin from penetrating through the vertical plate and the supporting foot; When in use, the supporting foot drives the limit slide plate to move downward to avoid the draw pin from penetrating through the vertical plate and the supporting foot.

7. The movable escalator applicable to railway freight cars according to claim 6, characterized in that, Chute grooves are respectively arranged on the adjacent sides of the two vertical plates, a guiding block matched with the chute grooves is arranged on the limit slide plate, the elastic mechanism includes a limit post and a supporting spring, one end of the supporting spring is sleeved on the limit post, and the other end of the supporting spring is connected to the lower end of the limit slide plate.

8. The movable escalator applicable to railway freight cars according to claim 6, characterized in that A guiding port is arranged at the opening of the through hole for penetrating the draw pin on the supporting foot.

9. The movable escalator applicable to railway wagons according to claim 4, characterized in that, Further comprising a groove body, the groove body is embedded on the vehicle body, the bottom end of the base is rotatably connected in the groove body, the base can be turned over to accommodate the vertical plate and the draw pin in the groove body, and the base is flush with the vehicle body surface after being turned over.

10. A railway freight car, characterized in that, Comprising: The movable escalator applicable to railway freight cars according to any one of claims 1-9.

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