Locking assembly and railway wagon end door assembly

Abstract

The invention provides a locking assembly and a rail wagon end door assembly, and relates to the field of rail wagon end door locking, according to the adopted scheme, the locking assembly comprises a limiting seat, a lock seat and a lock column, the limiting seat is of a square structure, and the lock column penetrates through the limiting seat and can move up and down relative to the limiting seat; a lock hook is arranged on the upper portion of the lock column and comprises a connecting part and a working part, the connecting part is rotatably connected with the lock column, the working part comprises a horizontal plate and a vertical plate, the horizontal plate is connected with the connecting part, after unlocking, the working part can be hung on the limiting seat, and the vertical plate is located on the outer side of the limiting seat; a locking block is vertically arranged on the locking seat, after locking, the working part can be clamped on the locking block, and the inner side face of the vertical plate abuts against the outer side face of the locking block; and the lock seat is arranged above the limiting seat. According to the invention, the operation is simple, and the opening and the locking of the end door are reliable.

Description

Technical Field

[0001] The invention relates to the field of railway freight car end door locking, and in particular to a locking assembly and a railway freight car end door assembly. Background Art

[0002] The end door assembly is a connecting device used for the suspended part between two railway freight cars. The end door assembly is usually a frame structure, which is a movable part installed at both ends of the car body. The end door assembly falls down and lays flat to connect the suspended parts between the cars, facilitating the continuous passage of railway goods and completing the loading and unloading of goods.

[0003] In the prior art, a Chinese invention patent with authorization announcement number CN104879012B discloses a railway freight car end door opening and closing device, wherein the railway freight car end door is arranged at the end of the railway freight car, and guide rails parallel to each other are arranged on both sides of the corresponding end door on the end body of the freight car, and a hollow shaft that can rotate relative to the guide rail is arranged at the top of the guide rail, and the middle of the hollow shaft is fixedly connected to one end of a crank perpendicular to it, and the other end of the crank is connected to a two-way cylinder push rod, the two-way cylinder is installed on the car body, and two symmetrical sets of cranks and connecting rods are installed at the position of the hollow shaft corresponding to the end door, the crank is welded to the hollow shaft, and the crank and the upper end of the connecting rod, the lower end of the connecting rod and the end door are connected by round pins; the two-way cylinder drives the crank to rotate, the crank drives the connecting rod, and the connecting rod drives the end door, and the end door is restricted by the guide rail and slides vertically up and down.

[0004] With the above technical solution, the end door is driven up and down by the piston rod and crank-connecting rod mechanism. On the one hand, there are many components, and the crank-connecting rod mechanism is deformed after long-term use, resulting in movement jams and the end door is not smoothly opened. On the other hand, it is driven by a two-way cylinder, so the reliability is low and the failure rate is high. Summary of the invention

[0005] In order to solve the technical problem in the prior art that the end door of a railway freight car cannot be opened smoothly after long-term use, the present invention provides a locking assembly and a railway freight car end door assembly, which have a simple structure, are easy to operate, and are relatively reliable in opening and locking of the end door.

[0006] In the first aspect, the present invention provides a locking assembly to solve the above-mentioned technical problems, including a limit seat, a lock seat and a lock column, the limit seat is in a U-shaped structure, the lock column passes through the limit seat and can move up and down relative to the limit seat; a lock hook is arranged on the upper part of the lock column, the lock hook includes a connecting part and a working part, the connecting part is rotatably connected to the lock column, the working part includes a horizontal plate and a vertical plate, the horizontal plate is connected to the connecting part, after unlocking, the working part can be hung on the limit seat, and the vertical plate is located on the outside of the limit seat; a lock block is vertically arranged on the lock seat, after locking, the working part can be clamped on the lock block, and the inner side surface of the vertical plate abuts against the outer side surface of the lock block; the lock seat is arranged above the limit seat.

[0007] The present invention simplifies the structure of the locking assembly through the cooperation of the limit seat, the lock seat and the lock cylinder. There is no need to set up a complex mechanism, the failure rate is low, and the reliability is high. Locking is achieved by releasing and turning, and unlocking is achieved by lifting and turning. The lock cylinder can also be hung on the limit seat through the lock hook. There is no need to store the lock cylinder separately, it will not be lost, and it is more convenient to use.

[0008] Furthermore, the connecting portion is in a U-shaped structure.

[0009] The present invention arranges the connecting part into a square-shaped structure, which is convenient for operators to grasp and apply force.

[0010] Furthermore, a mounting cavity is provided at the upper end of the lock column, a connecting shaft is hinged in the mounting cavity, and the upper end of the connecting shaft extends into the connecting portion and is provided with a limiting block.

[0011] The present invention installs the connecting shaft in a hinged manner, which can enable the locking hook to have a small range of movement under the force of the locking block. Compared with the welding connection, it can prevent the locking hook from transmitting the force of the locking block to the connection between the connecting shaft and the locking column, causing cracks at the root of the connecting shaft and making the connection invalid. At the same time, the hinged connection facilitates the disassembly of the locking hook for maintenance.

[0012] Furthermore, two limit seats are provided.

[0013] Furthermore, an end of the connecting portion away from the working portion protrudes out of the limiting seat.

[0014] The invention can prevent the lock column from being skewed and stuck in the limit seat and being difficult to be removed when the lock column is hung by arranging the limit seat with a protruding limit seat.

[0015] In a second aspect, the present invention further provides a railway freight car end door assembly, comprising an end door, a hinged rod being arranged at the lower portion of the end door, and the above-mentioned locking assembly, wherein the lock seat is arranged on the end door, an avoidance groove is arranged at a position on the end door opposite to the locking block, and the limit seat is used to be arranged on the end beam of the railway freight car.

[0016] Furthermore, hooks are rotatably provided at both ends of the end door, and the hooks can be hung on the hanging seats on both sides of the truck compartment.

[0017] The present invention further limits the end door by arranging a hook and then a hanging seat, thereby improving the reliability of locking the end door.

[0018] Furthermore, an upper positioning seat is provided on the end door, and the upper positioning seat can abut against a lower positioning seat on the end beam of the railway freight car, and both the upper positioning seat and the lower positioning seat are provided with positioning inclined surfaces.

[0019] The present invention can limit the position of the end door after it is opened by arranging the upper positioning seat and the lower positioning seat, thereby preventing the end door from colliding with the end beam.

[0020] Furthermore, two locking assemblies are symmetrically arranged.

[0021] Furthermore, a handle is provided on the end door.

[0022] It can be seen from the above technical solutions that the present invention has the following advantages:

[0023] The present invention provides a locking assembly and a railway freight car end door assembly. Through the cooperation of a limit seat, a lock seat and a lock column, the structure of the locking assembly is simplified, and there is no need to set up a complex mechanism. The failure rate is low and the reliability is high. Locking is achieved by releasing and turning, and unlocking is achieved by lifting and turning. In addition, the lock column can be hung on the limit seat through a lock hook, and there is no need to store the lock column separately, so it will not be lost, and it is more convenient and standardized to use. By setting the connecting part into a square-shaped structure, it is convenient for operators to grasp and apply force. By installing the connecting shaft in a hinged manner, the lock hook can be locked under the force of the lock block. It has a small range of motion. Compared with the welding connection, it can prevent the lock hook from transmitting the force of the lock block to the connection between the connecting shaft and the lock column, causing cracks at the root of the connecting shaft and making the connection invalid. At the same time, the hinged connection is convenient for disassembling the lock hook for maintenance. By setting a protruding limit seat at the connection part, it can prevent the lock column from being skewed and stuck in the limit seat when being hung and difficult to remove. By setting a hook and then a hanging seat, the end door is further limited, thereby improving the reliability of the end door locking. By setting an upper positioning seat and a lower positioning seat, the position of the end door after opening can be limited, thereby preventing the end door from colliding with the end beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a closed state of a second specific implementation mode of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the open state of the second specific implementation mode of the present invention.

[0027] Figure 3 It is a schematic diagram of the assembly structure of the lock cylinder and the lock hook in the first specific implementation mode of the present invention.

[0028] Figure 4 It is a schematic diagram of the assembly structure of the lock base and the end door in the second specific implementation mode of the present invention.

[0029] Figure 5 It is a schematic diagram of the assembly structure of the limit seat and the end beam in the second specific implementation mode of the present invention.

[0030] In the figure, 1, hook; 2, locking hook; 201, connecting part; 202, limiting block; 203, hinge seat; 204, working part; 3, locking column; 4, locking seat; 401, locking block; 5, hanging seat; 6, end door; 7, reinforcing rib plate; 8, reinforcing beam; 9, reinforcing column; 10, limiting seat; 11, end beam; 12, upper positioning seat; 13, lower positioning seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent. Specific implementation method 1

[0033] like Figures 1 to 3 As shown, this specific embodiment provides a locking assembly, including a limit seat 10, a lock seat 4 and a lock column 3; the limit seat 10 is a U-shaped structure, the lock column 3 passes through the limit seat 10 and can move up and down relative to the limit seat 10; a lock hook 2 is arranged on the upper part of the lock column 3, the lock hook 2 includes a connecting portion 201 and a working portion 204, the connecting portion 201 is rotatably connected to the lock column 3, the working portion 204 includes a horizontal plate and a vertical plate, the horizontal plate is connected to the connecting portion 201, after unlocking, the working portion 204 can be hung on the limit seat 10, and the vertical plate is located on the outside of the limit seat 10; a lock block 401 is vertically arranged on the lock seat 4, after locking, the working portion 204 can be clamped on the lock block 401, and the inner side surface of the vertical plate abuts against the outer side surface of the lock block 401; the lock seat 4 is arranged above the limit seat 10.

[0034] This specific implementation method simplifies the structure of the locking assembly through the cooperation of the limit seat 10, the lock seat 4 and the lock column 3. There is no need to set up a complex mechanism, the failure rate is low, the reliability is high, and locking is achieved by releasing and turning, and unlocking is achieved by lifting and turning. The lock hook 2 not only has a locking function but also has the function of hanging the lock column 3. The lock column 3 is hung on the limit seat 10 through the lock hook 2. There is no need to store the lock column 3 separately and it will not be lost. It is more convenient to use and facilitates standardized operation.

[0035] In order to facilitate the operator to take it, the connecting portion 201 is in a U-shaped structure, and the connecting portion 201 can be used as a handle.

[0036] like Figure 3As shown, in this specific embodiment, an installation cavity is provided at the upper end of the lock column 3, and a connecting shaft is hinged in the installation cavity. Specifically, a hinge seat 203 is provided in the installation cavity, a bolt is provided on the hinge seat 203, the bolt has a connecting shaft, nuts are provided at both ends of the bolt, and the upper end of the connecting shaft extends into the connecting portion 201 and is provided with a limiting block 202; through such an arrangement, when the end door 6 is disturbed by external force, the locking block 401 also moves together, and there is a force acting on the lock hook 2. After the connecting shaft is hinged, the lock hook 2 can have a small movement amplitude under the force of the locking block 401. Compared with welding or casting connection, it can prevent the lock hook 2 from transmitting the force of the locking block 401 to the connection between the connecting shaft and the lock column 3, causing cracks at the root of the connecting shaft, making the connection invalid. At the same time, the hinged connection is convenient for disassembling the lock hook 2 for maintenance.

[0037] like Figure 1 As shown, in this specific embodiment, two limit seats 10 are provided, and the end of the connecting part 201 away from the working part 204 protrudes out of the limit seat 10; by setting the connecting part 201 to protrude out of the limit seat 10, it can be avoided that the lock column 3 is skewed and stuck in the limit seat 10 and is difficult to remove when being hung. Specific implementation method 2

[0039] like Figure 1 to Figure 2 As shown, this specific embodiment provides a railway freight car end door assembly, including an end door 6, a hinged rod is arranged at the lower part of the end door 6, the hinged rod is used to be rotatably connected with the hinge support of the freight car end beam 11 to realize the opening and closing of the end door 6, and also includes a locking assembly of specific embodiment one, and two locking assemblies are symmetrically arranged, the lock seat 4 is arranged on the end door 6, in order to avoid interference with the rotation of the lock hook 2, an avoidance groove is arranged on the end door 6 at a position opposite to the lock block 401, and the limit seat 10 is used to be arranged on the railway freight car end beam 11.

[0040] like Figure 1 , Figure 2 and Figure 4 As shown, in order to further improve the reliability of the locking of the end door 6, hooks 1 are rotatably provided at both ends of the end door 6, and the hooks 1 can be hung on the hanging seats 5 on both sides of the truck compartment.

[0041] like Figure 4 and Figure 5 As shown, in order to prevent the end door 6 from impacting the end beam 11 under the action of gravity after it is opened, in this specific embodiment, an upper positioning seat 12 is provided on the end door 6, and the upper positioning seat 12 can abut against the lower positioning seat 13 on the end beam 11 of the railway freight car. The upper positioning seat 12 and the lower positioning seat 13 are both provided with positioning inclined surfaces, and the upper positioning seat 12 and the lower positioning seat 13 both adopt a triangular structure, which can enhance stability and improve support strength.

[0042] like Figure 4As shown, for easy operation, a handle is provided on the end door 6.

[0043] like Figure 4 As shown, in order to improve the strength of the end door 6, in this specific embodiment, a reinforcing beam 8 and a reinforcing column 9 are arranged on the outside of the end door 6, a reinforcing rib plate 7 is also arranged between the reinforcing beam and the end door 6, and a handle is arranged on the reinforcing column 9.

[0044] The locking and opening process of this end door 6 assembly is as follows:

[0045] When it is necessary to close the end door 6, flip the end door 6 to a vertical position, lift the lock column 3 upward to the upper part of the lock block 401, rotate the lock hook 2, lower the lock column 3, the working part 204 is engaged with the lock block 401, and the hook 1 is rotated to engage with the hanging seat 5; when it is necessary to open the end door 6, hold the end door 6 by hand, lift the lock column 3 upward, rotate the lock hook 2, and lower the lock column 3 until the working part 204 is engaged with the limit seat 10, rotate the hook 1 to unlock, and rotate the end door 6 until the upper positioning seat 12 abuts against the lower positioning seat 13 to achieve opening.

[0046] From the above specific implementations, it can be seen that the present invention has the following beneficial effects:

[0047] 1. The structure of the locking assembly is simplified through the cooperation of the limit seat 10, the lock seat 4 and the lock cylinder 3. There is no need to set up a complex mechanism, the failure rate is low, the reliability is high, the locking is achieved by one release and one turn, and the unlocking is achieved by one lift and one turn. In addition, the lock cylinder 3 can be hung on the limit seat 10 through the lock hook 2. There is no need to store the lock cylinder 3 separately, and it will not be lost, which is more convenient and standardized to use;

[0048] 2. By setting the connection part 201 into a square-shaped structure, it is convenient for operators to grasp and apply force;

[0049] 3. The hinged connection can make the lock hook 2 move slightly under the force of the lock block 401. Compared with the welding connection, the lock hook 2 can avoid transmitting the force of the lock block 401 to the connection between the connection shaft and the lock column 3, causing the root of the connection shaft to crack and make the connection invalid. At the same time, the hinged connection makes it easy to disassemble the lock hook 2 for maintenance.

[0050] 4. By setting the connecting part 201 to extend out of the limit seat 10, it is possible to prevent the lock column 3 from being skewed and stuck in the limit seat 10 when being hung and difficult to be removed;

[0051] 5. The end door 6 is further limited by setting the hook 1 and the hanger 5, thereby improving the reliability of locking the end door 6;

[0052] 6. The upper positioning seat 12 and the lower positioning seat 13 are provided to limit the position of the end door 6 after it is opened, thereby preventing the end door 6 from colliding with the end beam 11.

[0053] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locking assembly, comprising a limit seat (10), a lock seat (4) and a lock cylinder (3), characterized in that : The limiting seat (10) is in a U-shaped structure, and the locking column (3) passes through the limiting seat (10) and can move up and down relative to the limiting seat (10); A lock hook (2) is arranged on the upper part of the lock column (3), and the lock hook (2) comprises a connecting portion (201) and a working portion (204), the connecting portion (201) is rotatably connected to the lock column (3), and the working portion (204) comprises a horizontal plate and a vertical plate, the horizontal plate is connected to the connecting portion (201), and after unlocking, the working portion (204) can be hung on the limiting seat (10), and the vertical plate is located outside the limiting seat (10); A locking block (401) is vertically arranged on the locking seat (4); after locking, the working portion (204) can be clamped on the locking block (401), and the inner side surface of the vertical plate abuts against the outer side surface of the locking block (401); The lock seat (4) is arranged above the limit seat (10).

2. The locking assembly according to claim 1, characterized in that The connecting portion (201) is in a square shape.

3. The locking assembly according to claim 2, characterized in that The upper end of the lock column (3) is provided with a mounting cavity, a connecting shaft is hinged in the mounting cavity, the upper end of the connecting shaft extends into the connecting portion (201) and is provided with a limiting block (202).

4. The locking assembly according to claim 3, characterized in that There are two limit seats (10).

5. The locking assembly according to any one of claims 1 to 4, characterized in that The end of the connecting portion (201) away from the working portion (204) protrudes out of the limiting seat (10).

6. A railway freight car end door assembly, comprising an end door (6), wherein a hinged rod is provided at the lower part of the end door (6), characterized in that : It also includes the locking assembly as claimed in claim 5, the lock seat (4) is arranged on the end door (6), and an avoidance groove is arranged at a position on the end door (6) opposite to the locking block (401), and the limit seat (10) is used to be arranged on the end beam (11) of the railway freight car.

7. The railway freight car end door assembly according to claim 6, characterized in that The two ends of the end door (6) are rotatably provided with hooks (1), and the hooks (1) can be hung on the hanging seats (5) on both sides of the railway freight car.

8. The railway freight car end door assembly according to claim 6, characterized in that An upper positioning seat (12) is provided on the end door (6), and the upper positioning seat (12) can abut against a lower positioning seat (13) on the end beam (11) of the railway freight car, and both the upper positioning seat (12) and the lower positioning seat (13) are provided with positioning inclined surfaces.

9. The railway freight car end door assembly according to claim 8, characterized in that : Two locking components are symmetrically arranged.

10. The railway freight car end door assembly according to claim 9, characterized in that The end door (6) is provided with a handle.

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