Car roof loading opening locking device

Abstract

The utility model discloses a car roof loading opening locking device, which relates to the technical field of hopper cars for railway transportation, and comprises a rotating support, a rotating shaft and a handle, the rotating support comprises a support seat plate arranged on a car roof plate close to a loading opening, and a vertical plate group arranged on the support seat plate; the rotating shaft is rotationally arranged on the vertical plate set, the handle is fixedly arranged on the rotating shaft, and the rotating shaft is provided with a working part used for pressing the loading opening cover and an avoiding part used for avoiding the loading opening cover. The utility model has the advantages of reasonable design, manual locking and unlocking, unlimited application scene and flexible operation. Compared with a traditional bolt and nut fastening locking structure or a mechanical locking structure needing oil and electricity to participate in, the locking device is simple in structure, low in manufacturing cost, easy to maintain and high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of hopper cars for railway transportation, and more specifically to the technical field of a locking device for a loading opening on the roof of a car. Background Art

[0002] Existing railway fine-grained freight cars such as railway grain and flour hopper cars generally are provided with a through-length top cover and continuous rectangular loading openings to meet the loading requirements of different grain loading machinery and equipment. At the same time, several circular loading openings are provided at the top of the existing hopper car. When loading powdery goods such as flour, the movable rectangular top cover remains in the closed position, and the top covers of the circular loading openings are opened. The vehicle is moved under the discharge hopper of the flour loading station so that each loading opening of the vehicle corresponds to the discharge hopper one by one. The circular loading openings are preferably provided with manually opened and closed top covers. The locking device for the circular loading opening cover needs to be flexible and convenient to operate, reliable in performance, easy to maintain and repair, and cost-saving.

[0003] When the existing flour hopper car of the user loads grain, the moving distance of a single rectangular loading opening cover is only about 2.5 m, the total length of the loading opening is about 5 m, and the total length of the loading opening only accounts for about 30% of the length of the car roof and is discontinuous, so the grain loading efficiency is not high. The rectangular top cover is driven by a pneumatic motor, a sprocket, a transmission chain, etc., and is provided with a track, a pulley, etc. The types and quantities of parts are relatively many, the driving device has a complex structure, and the product cost is relatively high. When the sliding track is deformed or the roller bearing is rusted, the movement of the top cover will be stuck, which is not convenient to use, and the maintenance cost will also increase accordingly. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a locking device for a loading opening on the roof of a car in order to solve the technical problem that the driving device of the existing loading opening cover has a complex structure and the movement of the top cover is easily stuck when the sliding track is deformed or the roller bearing is rusted.

[0005] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0006] The utility model provides a locking device for a loading opening on the roof of a car, which includes a rotating support, a rotating shaft and a handle. The rotating support includes a support seat plate arranged on the car roof plate near the loading opening and a group of vertical plates arranged on the support seat plate; the rotating shaft is rotatably arranged on the group of vertical plates, the handle is fixedly arranged on the rotating shaft, and a working part for pressing the loading opening cover and an avoidance part for avoiding the loading opening cover are arranged on the rotating shaft.

[0007] Specifically, the rotating support is welded and fixed by a seat plate and a group of vertical plates to serve as the support position of the locking device; the rotating shaft is fixed to the handle, and is manually locked and opened, and the application scenario is not restricted, and the operation is flexible. It is very convenient to open or close.

[0008] In one embodiment, the vertical plate group includes a first vertical plate and a second vertical plate arranged side by side on the seat plate of the support base. The first vertical plate and the second vertical plate are parallel to each other and are both orthogonal to the seat plate of the support base. The rotating shaft is rotatably arranged between the first vertical plate and the second vertical plate.

[0009] Specifically, the rotating support is a welded structure of plates. It is welded and fixed by the seat plate of the support base and the double vertical plates, and the double vertical plates are provided with a central hole for the rotating shaft. It serves as the support base for the rotating shaft.

[0010] In one embodiment, the rotating shaft is eccentrically designed. The rotating shaft includes a U-shaped member in the middle and rotating rods arranged on the outer sides of the two side walls of the U-shaped member. The outer bottom surface of the U-shaped member is the working part, and the inner groove of the U-shaped member is the avoidance part.

[0011] In one embodiment, the two rotating rods are arranged at the same height on the two side walls of the U-shaped member by welding, and the two rotating rods are respectively connected to the first vertical plate and the second vertical plate.

[0012] In one embodiment, a Z-shaped pressing plate matching with the U-shaped member is arranged on one side of the loading port cover. One side of the Z-shaped pressing plate is fixed on the loading port cover, and the other side extends below the U-shaped member. When the loading port cover is closed, the working part presses the Z-shaped pressing plate. When the loading port cover is opened, the U-shaped member is rotated, and the avoidance part is located at the Z-shaped pressing plate.

[0013] In one embodiment, the distance from the axis of the rotating rod to the inner bottom of the U-shaped member is L1, the position of the axis of the rotating rod on the Z-shaped pressing plate is the projection line, and the distance from the end of the Z-shaped pressing plate to the projection line is L2. The distance L1 is greater than the distance L2;

[0014] The distance from the axis of the rotating rod to the outer bottom of the U-shaped member is greater than or equal to the distance from the axis of the rotating rod to the Z-shaped pressing plate.

[0015] In one embodiment, the handle is a U-shaped handle, and the ends of the two straight arms of the U-shaped handle are fixed to the ends of the respective corresponding rotating rods.

[0016] In one embodiment, the inner bottom surface of the U-shaped member is a planar release surface, and the outer bottom surface of the U-shaped member is an arc-shaped locking surface. The locking surface is in a tangential fit state with the Z-shaped pressing plate.

[0017] Specifically, the rotating shaft adopts an eccentric design, and the rotation axis maintains a certain spatial distance from the locking surface (i.e., the outer bottom surface of the U-shaped member). The locking surface is arc-shaped, which can effectively reduce friction; the release surface (the inner bottom surface of the U-shaped member) is a planar structure, and when it rotates to the vertical position, it can avoid blocking the end of the Z-shaped pressing plate.

[0018] The rotating shaft adopts an eccentric design, the locking surface is arc-shaped, and the release surface is a planar structure. Compared with the traditional bolt-nut fastening and locking structure or the mechanical locking structure that requires oil or electric power, the structure of the present utility model is simple, with low manufacturing cost, easy to maintain, and strong versatility.

[0019] In one embodiment, the ends of the two straight arms of the U-shaped handle are fixed to the respective ends of the rotating rods by welding, and the release surface is perpendicular to the overall U-shaped handle.

[0020] Specifically, the rotating shaft is fixedly welded to the U-shaped handle, the release surface of the rotating shaft is perpendicular to the handle, forming a 90-degree angle. The rotating shaft rotates along with the handle around the fulcrum of the support seat, realizing the locking and opening of the loading hatch cover on the vehicle roof.

[0021] In one embodiment, the U-shaped handle is formed by cold bending and welding of a plate.

[0022] Specifically, the handle is formed by welding two symmetrically structured parts bent into an L shape into a U shape, realizing the fixed welding of the handle and the rotating shaft.

[0023] Working principle: When locking the loading hatch cover, the handle is placed in the vertical position and the release surface is perpendicular to the loading hatch cover. Close the loading hatch cover, rotate the U-shaped handle outwards, and the locking surface (i.e., the outer bottom surface of the U-shaped part) is in a tangent fit state with the Z-shaped pressing plate, and it is gradually locked as the rotation angle of the U-shaped handle increases. When the U-shaped part is in the horizontal position and the lowest point of the locking surface contacts the Z-shaped pressing plate, it is the locking dead point. At this time, continue to press and rotate the U-shaped handle, and the loading hatch cover will not accidentally open after being locked. When opening the loading hatch cover, rotate the U-shaped handle upwards, the locking surface rotates away from the pressing plate, and at the same time the release surface avoids the Z-shaped pressing plate, realizing the opening of the loading hatch cover.

[0024] The beneficial effects of the present utility model are as follows:

[0025] 1. The rotating support is fixedly welded by a seat plate and a vertical plate, serving as the support position of the locking device; the rotating shaft is fixed to the handle, manually locked and opened, the application scenario is not restricted, and the operation is flexible. It is very convenient to open or close.

[0026] 2. The rotating shaft adopts an eccentric design, the locking surface is arc-shaped, and the release surface is a planar structure. Compared with the traditional bolt-nut fastening and locking structure or the mechanical locking structure that requires oil or electric power, the structure of the present utility model is simple, with low manufacturing cost, easy to maintain, and strong versatility.

[0027] 3. The rotation locks through the dead point of rotation and will not accidentally open, and the locking performance is reliable. Manually locked and opened, the application scenario is not restricted, and the operation is flexible. Description of the Drawings

[0028] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0029] Figure 1 is the structural schematic diagram after the installation of a cargo hatch locking device of the present utility model;

[0030] Figure 2 is the structural schematic diagram of a cargo hatch locking device;

[0031] Figure 3 is the structural schematic diagram of the closed position of this device;

[0032] Figure 4 is the structural schematic diagram of the open position of this device;

[0033] Figure 5 is the structural schematic diagram of the rotating shaft;

[0034] Reference numerals: 1 - support seat plate, 2 - vertical plate group, 3 - U-shaped handle, 4 - rotating shaft, 41 - U-shaped part, 42 - rotating rod, 5 - Z-shaped pressing plate, 6 - cargo hatch cover. Detailed embodiments

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the attached drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present utility model provided in the attached drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0037] It should be noted that: similar reference numerals and letters represent similar items in the following attached drawings. Therefore, once an item is defined in one attached drawing, it does not need to be further defined and explained in subsequent attached drawings. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is habitually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0039] It should also be noted that unless otherwise clearly specified and limited, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances, and thus it should not be construed as a limitation to the present utility model.

[0040] Embodiment 1

[0041] As Figures 1 to 5 shown, this embodiment provides a locking device for a roof loading opening, which includes a rotating support, a rotating shaft 4 and a handle. The rotating support includes a support seat plate 1 provided on the vehicle roof panel near the loading opening and a vertical plate group 2 provided on the support seat plate 1; the rotating shaft 4 is rotatably arranged on the vertical plate group 2, the handle is fixedly arranged on the rotating shaft 4, and the rotating shaft 4 is provided with a working part for pressing the loading opening cover 6 and an avoiding part for avoiding the loading opening cover 6.

[0042] Specifically, the rotating support is fixed by welding the seat plate and the vertical plate group 2 as the supporting position of the locking device; the rotating shaft 4 is fixed to the handle for manual locking and opening, with no restricted application scenarios and flexible operation. It is very inconvenient to open or close.

[0043] Embodiment 2

[0044] As Figures 1 to 5 shown, this embodiment provides a locking device for a roof loading opening, which includes a rotating support, a rotating shaft 4 and a handle. The rotating support includes a support seat plate 1 provided on the vehicle roof panel near the loading opening and a vertical plate group 2 provided on the support seat plate 1; the rotating shaft 4 is rotatably arranged on the vertical plate group 2, the handle is fixedly arranged on the rotating shaft 4, and the rotating shaft 4 is provided with a working part for pressing the loading opening cover 6 and an avoiding part for avoiding the loading opening cover 6.

[0045] The vertical plate group 2 includes a first vertical plate and a second vertical plate arranged in parallel on the support seat plate 1. The first vertical plate and the second vertical plate are parallel to each other and are both orthogonal to the support seat plate 1. The rotating shaft 4 is rotatably arranged between the first vertical plate and the second vertical plate.

[0046] Specifically, the rotating support is a welded structure of plates. It is fixedly welded by the support seat plate 1 and the double vertical plates, and the double vertical plates are provided with a rotating shaft center hole. It serves as the support base for the rotating shaft 4.

[0047] Embodiment 3

[0048] As Figures 1 to 5 shown, this embodiment provides a roof loading port locking device, including a rotating support, a rotating shaft 4, and a handle. The rotating support includes a support seat plate 1 disposed on the vehicle roof panel near the loading port and a vertical plate group 2 disposed on the support seat plate 1; the rotating shaft 4 is rotatably disposed on the vertical plate group 2, the handle is fixedly disposed on the rotating shaft 4, and the rotating shaft 4 is provided with a working portion for pressing the loading port cover 6 and an avoidance portion for avoiding the loading port cover 6.

[0049] The vertical plate group 2 includes a first vertical plate and a second vertical plate arranged side by side on the support seat plate 1. The first vertical plate and the second vertical plate are parallel to each other and are both orthogonal to the support seat plate 1. The rotating shaft 4 is rotatably disposed between the first vertical plate and the second vertical plate.

[0050] The rotating shaft 4 is eccentrically designed. The rotating shaft 4 includes a U-shaped member 41 in the middle and rotating rods 42 disposed on the outer sides of the two side walls of the U-shaped member 41. The outer bottom surface of the U-shaped member is the working portion, and the inner groove of the U-shaped member 41 is the avoidance portion.

[0051] The two rotating rods are arranged at the same height by welding on the two side walls of the U-shaped member 41, and the two rotating rods 42 are respectively connected to the first vertical plate and the second vertical plate.

[0052] One side of the loading port cover 6 is provided with a Z-shaped pressing plate 5 that cooperates with the U-shaped member. One side of the Z-shaped pressing plate 5 is fixed to the loading port cover 6, and the other side extends below the U-shaped member. When the loading port cover 6 is closed, the working portion presses the Z-shaped pressing plate 5. When the loading port cover 6 is opened, the U-shaped member is rotated, and the avoidance portion is located at the Z-shaped pressing plate 5.

[0053] The distance from the axis of the rotating rod to the inner bottom of the U-shaped member is L1, the position of the axis of the rotating rod on the Z-shaped pressing plate 5 is the projection line, and the distance from the end of the Z-shaped pressing plate 5 to the projection line is L2. The distance L1 is greater than the distance L2;

[0054] The distance from the axis of the rotating rod to the outer bottom of the U-shaped member is greater than or equal to the distance from the axis of the rotating rod to the Z-shaped pressing plate 5.

[0055] The handle is a U-shaped handle 3, and the ends of the two straight arms of the U-shaped handle 3 are fixed to the ends of the respective corresponding rotating rods.

[0056] The inner bottom surface of the U-shaped member is a flat release surface, and the outer bottom surface of the U-shaped member is an arc-shaped locking surface. The locking surface is in a tangential fit state with the Z-shaped pressing plate 5.

[0057] Specifically, the rotating shaft 4 adopts an eccentric design, and there is a certain spatial distance between the rotation axis center and the locking surface (i.e., the outer bottom surface of the U-shaped part). The locking surface is arc-shaped, which can effectively reduce friction; the release surface (the inner bottom surface of the U-shaped part) is a planar structure, and when it rotates to the vertical position, it can avoid blocking the end of the Z-shaped pressing plate 5.

[0058] In addition, the rotating shaft 4 adopts an eccentric design, the locking surface is arc-shaped, and the release surface is a planar structure. Compared with the traditional bolt-nut fastening and locking structure or the mechanical locking structure that requires oil or electric power participation, the structure of the present utility model is simple, with low manufacturing cost, easy to maintain, and strong versatility.

[0059] The working process is as follows: When locking the loading hatch cover 6, the handle is placed in the vertical position and the release surface is perpendicular to the loading hatch cover 6. Close the loading hatch cover 6, and rotate the U-shaped handle 3 outward. The locking surface (i.e., the outer bottom surface of the U-shaped part) is in a tangential fit state with the Z-shaped pressing plate 5, and it is gradually locked as the rotation angle of the U-shaped handle 3 increases. When the U-shaped part is in the horizontal position and the lowest point of the locking surface contacts the Z-shaped pressing plate 5, it is the locking dead point position. At this time, continue to press and rotate the U-shaped handle 3, and the loading hatch cover 6 will not accidentally open when locked. When opening the loading hatch cover 6, rotate the U-shaped handle 3 upward, the locking surface rotates away from the pressing plate, and at the same time the release surface avoids the Z-shaped pressing plate 5 to realize the opening of the loading hatch cover 6.

[0060] Embodiment 4

[0061] This embodiment is further optimized on the basis of any one of Embodiments 1 to 3. Specifically:

[0062] The ends of the two straight arms of the U-shaped handle 3 are fixed to the ends of their respective rotating rods by welding, and the release surface is perpendicular to the whole U-shaped handle 3.

[0063] Specifically, the rotating shaft 4 is fixed to the U-shaped handle 3 by welding. The release surface of the rotating shaft 4 is perpendicular to the handle, forming a 90-degree angle. The rotating shaft 4 rotates along with the handle around the fulcrum of the support seat to realize the locking and opening of the roof loading hatch cover 6.

[0064] Embodiment 5

[0065] This embodiment is further optimized on the basis of any one of Embodiments 1 to 4. Specifically:

[0066] The U-shaped handle 3 is formed by cold bending and welding of plates.

[0067] Specifically, the handle is formed by welding two symmetrically structured parts bent into an L shape into a U shape to realize the welding and fixing of the handle and the rotating shaft 4.

Claims

1. A roof loading hatch locking device, characterized in that, It includes a rotating support, a rotating shaft (4) and a handle. The rotating support includes a support seat plate (1) provided on the vehicle top plate near the loading opening, and a vertical plate group (2) provided on the support seat plate (1); the rotating shaft (4) is rotatably arranged on the vertical plate group (2), the handle is fixedly arranged on the rotating shaft (4), and a working part for pressing the loading opening cover (6) and an avoidance part for avoiding the loading opening cover (6) are arranged on the rotating shaft (4).

2. The roof loading opening locking device according to claim 1, characterized in that The vertical plate group (2) includes a first vertical plate and a second vertical plate arranged in parallel on the support seat plate (1). The first vertical plate and the second vertical plate are parallel to each other and are both orthogonal to the support seat plate (1), and the rotating shaft (4) is rotatably arranged between the first vertical plate and the second vertical plate.

3. The roof loading port locking device according to claim 2, wherein, The rotating shaft (4) is eccentrically designed. The rotating shaft (4) includes a U-shaped part (41) in the middle, and rotating rods (42) arranged on the outer sides of the two side walls of the U-shaped part (41). The outer bottom surface of the U-shaped part (41) is the working part, and the inner groove of the U-shaped part (41) is the avoidance part.

4. The roof loading opening locking device according to claim 3, characterized in that, The two rotating rods (42) are arranged at the same height on the two side walls of the U-shaped part (41) by welding, and the two rotating rods (42) are respectively connected to the first vertical plate and the second vertical plate.

5. The roof loading opening locking device according to claim 4, characterized in that, A Z-shaped pressing plate (5) matched with the U-shaped part (41) is arranged on one side of the loading opening cover (6). One side of the Z-shaped pressing plate (5) is fixed on the loading opening cover (6), and the other side extends below the U-shaped part (41). When the loading opening cover (6) is closed, the working part presses the Z-shaped pressing plate (5). When the loading opening cover (6) is opened, the U-shaped part (41) is rotated, and the avoidance part is located at the Z-shaped pressing plate (5).

6. The roof loading opening locking device according to claim 5, characterized in that, The distance from the axis of the rotating rod (42) to the inner bottom of the U-shaped part (41) is L1, the position of the axis of the rotating rod (42) on the Z-shaped pressing plate (5) is the projection line, and the distance from the end of the Z-shaped pressing plate (5) to the projection line is L2. The distance L1 is greater than the distance L2; The distance from the axis of the rotating rod (42) to the outer bottom of the U-shaped part (41) is greater than or equal to the distance from the axis of the rotating rod (42) to the Z-shaped pressing plate (5).

7. The roof loading opening locking device according to claim 6, characterized in that, The handle is a U-shaped handle (3), and the ends of the two straight arms of the U-shaped handle (3) are fixed to the ends of the respective corresponding rotating rods (42).

8. A roof loading port locking device according to claim 7, characterized in that, The inner bottom surface of the U-shaped part (41) is a planar release surface, and the outer bottom surface of the U-shaped part (41) is an arc-shaped locking surface, and the locking surface is in a tangential fit state with the Z-shaped pressing plate (5).

9. The roof loading hatch locking device according to claim 8, characterized in that, The ends of the two straight arms of the U-shaped handle (3) are fixed to the ends of the respective corresponding rotating rods (42) by welding, and the release surface is perpendicular to the whole U-shaped handle (3).

10. The roof loading opening locking device according to claim 9, characterized in that, The U-shaped handle (3) is formed by cold bending and welding of a plate.

Images