A locking assembly and railway wagon end door assembly

Abstract

The application provides a locking assembly and a railway wagon end door assembly, and relates to the field of railway wagon end door locking. The scheme is as follows: the locking assembly comprises a limiting seat, a lock seat and a lock column, the limiting seat is in a mouth-shaped structure, the lock column penetrates through the limiting seat and can move up and down relative to the limiting seat; the upper part of the lock column is provided with a lock hook, the lock hook 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 outside the limiting seat; the lock seat is vertically provided with a lock block, 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; and the lock seat is arranged above the limiting seat. The application is simple in operation, and the opening and locking of the end door are relatively reliable.

Description

Technical Field

[0001] This invention relates to the field of railway freight car end door locking, and more particularly to a locking assembly and a railway freight car end door assembly. Background Technology

[0002] End gate assemblies are connecting devices used for the suspended parts between two railway freight cars. They are typically frame structures, movable components installed at both ends of the car body. When lowered, the end gate assemblies connect the suspended parts between the cars, facilitating the continuous passage of freight and completing the loading and unloading of goods.

[0003] In the prior art, Chinese invention patent with authorization announcement number CN104879012B discloses a railway freight car end door opening and closing device. In this device, the railway freight car end door is set at the end of the freight car. Parallel guide rails are set on both sides of the end door on the car body at the end of the freight car. A hollow shaft that can rotate relative to the guide rail is set at the top of the guide rail. One end of a crank perpendicular to the hollow shaft is fixedly connected to the middle of the hollow shaft. The other end of the crank is connected to a double-acting cylinder push rod. The double-acting cylinder is installed on the car body. Two sets of cranks and connecting rods are symmetrically installed on the hollow shaft at the part corresponding to the end door. The cranks are welded to the hollow shaft. The upper end of the crank and the lower end of the connecting rod are connected to the end door by round pins. The double-acting cylinder drives the crank to rotate, the crank drives the connecting rod, and the connecting rod drives the end door. The end door is restricted by the guide rail and slides vertically up and down.

[0004] The above technical solution uses a piston rod and crank-connecting rod mechanism to drive the end door to move up and down. On the one hand, there are many components, and the crank-connecting rod mechanism can deform after long-term use, causing movement to jam and the end door to not open smoothly. On the other hand, the drive is performed by a two-way cylinder, which has low reliability and a high failure rate. Summary of the Invention

[0005] To address the technical problem of unsmooth opening of railway freight car end doors in the prior art, this invention provides a locking assembly and a railway freight car end door assembly, which are simple in structure, easy to operate, and provide reliable opening and locking of the end doors.

[0006] In a first aspect, the present invention provides a locking assembly to solve the above-mentioned technical problems, including a limiting seat, a locking base, and a locking pin. The limiting seat has a U-shaped structure, and the locking pin passes through the limiting seat and can move up and down relative to the limiting seat. A locking hook is provided on the upper part of the locking pin, the locking hook including a connecting part and a working part. The connecting part is rotatably connected to the locking pin, and 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 hooked onto the limiting seat, and the vertical plate is located outside the limiting seat. A locking block is vertically provided on the locking base. After locking, the working part can be engaged with the locking block, and the inner side of the vertical plate abuts against the outer side of the locking block. The locking base is located above the limiting seat.

[0007] This invention simplifies the structure of the locking assembly by using a limit seat, a lock seat, and a lock pin. It eliminates the need for complex mechanisms, has a low failure rate, and high reliability. Locking is achieved by releasing and turning, and unlocking is achieved by lifting and turning. Furthermore, the lock pin can be hung on the limit seat via a lock hook, eliminating the need for separate storage of the lock pin, preventing loss, and making it more convenient to use.

[0008] Furthermore, the connecting part has a square-shaped structure.

[0009] The present invention makes the connecting part easy for the operator to grip and apply force by setting the U-shaped structure.

[0010] Furthermore, the upper end of the locking pin is provided with an installation cavity, and a connecting shaft is hinged in the installation cavity. The upper end of the connecting shaft extends into the connecting part and is provided with a limit block.

[0011] This invention installs the connecting shaft by hinge, which allows the locking hook to have a small range of motion under the force of the locking block. Compared with welding connection, it can avoid the locking hook transmitting the force of the locking block to the connection between the connecting shaft and the locking pin, which would cause the root of the connecting shaft to crack and the connection to fail. At the same time, the hinge connection makes it easy to disassemble the locking hook for maintenance.

[0012] Furthermore, two limiting seats are provided.

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

[0014] The present invention, by providing a protruding limiting seat on the connecting part, can prevent the locking pin from being misaligned and stuck into the limiting seat, making it difficult to remove.

[0015] Secondly, the present invention also provides a railway freight car end door assembly, including an end door, a hinge rod provided at the lower part of the end door, and the aforementioned locking assembly, a lock seat provided on the end door, an clearance groove provided on the end door at a position opposite to the lock block, and a limiting seat for being mounted on the railway freight car end beam.

[0016] Furthermore, hooks are rotatably provided at both ends of the end door, and the hooks can be attached to the mounting brackets on both sides of the truck bed.

[0017] This invention further limits the end gate by setting a hook and then a mounting bracket, thereby improving the reliability of the end gate locking.

[0018] Furthermore, the end gate is provided with an upper positioning seat, which can abut against the 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] This invention, by setting an upper positioning seat and a lower positioning seat, can limit the position of the end door after it is opened, thus preventing the end door from colliding with the end beam.

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

[0021] Furthermore, the end door is equipped with a handle.

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

[0023] This invention provides a locking assembly and a railway freight car end door assembly. By utilizing the cooperation of a limiting seat, a lock seat, and a locking pin, the structure of the locking assembly is simplified, eliminating the need for complex mechanisms, resulting in a low failure rate and high reliability. Locking is achieved with a simple release and turn, and unlocking with a simple lift and turn. Furthermore, the locking pin can be hung on the limiting seat via a locking hook, eliminating the need for separate storage and preventing loss, making it more convenient and standardized to use. The U-shaped structure of the connecting part facilitates gripping and force application by the operator. The hinged installation of the connecting shaft ensures that the locking hook, under the force of the locking block... With a small range of motion, compared to welding connections, it avoids the lock hook transmitting the force of the lock block to the connection between the connecting shaft and the lock pin, preventing cracking at the root of the connecting shaft and connection failure. The hinged connection also facilitates disassembly of the lock hook for maintenance. The protruding limiting seat on the connecting part prevents the lock pin from becoming misaligned and stuck in the limiting seat when hooked, making it difficult to remove. The hook and subsequent mounting bracket further limit the end door's position, improving the reliability of the end door lock. The upper and lower positioning seats limit the position of the end door after it is opened, preventing it from colliding with the end beam. Attached Figure Description

[0024] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure in the closed state according to a specific embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the structure in the open state according to a specific embodiment two of the present invention.

[0027] Figure 3 This is a schematic diagram of the assembly structure of the locking pin and locking hook in a specific embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the assembly structure of the lock seat and the end door in a specific embodiment two of the present invention.

[0029] Figure 5 This is a schematic diagram of the assembly structure of the limiting seat and the end beam in the second specific embodiment of the present invention.

[0030] In the diagram, 1. Hook; 2. Lock 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 Implementation

[0031] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort 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 limiting seat 10, a locking base 4, and a locking pin 3; the limiting seat 10 has a U-shaped structure, the locking pin 3 passes through the limiting seat 10 and can move up and down relative to the limiting seat 10; a locking hook 2 is provided on the upper part of the locking pin 3, the locking hook 2 includes a connecting part 201 and a working part 204, the connecting part 201 is rotatably connected to the locking pin 3, the working part 204 includes a horizontal plate and a vertical plate, the horizontal plate is connected to the connecting part 201, after unlocking, the working part 204 can be hooked on the limiting seat 10, and the vertical plate is located on the outside of the limiting seat 10; a locking block 401 is vertically provided on the locking base 4, after locking, the working part 204 can be engaged with the locking block 401, and the inner side of the vertical plate abuts against the outer side of the locking block 401; the locking base 4 is located above the limiting seat 10.

[0034] This specific embodiment simplifies the structure of the locking assembly by using the combination of the limiting seat 10, the locking seat 4, and the locking pin 3. It eliminates the need for complex mechanisms, resulting in a low failure rate and high reliability. Locking is achieved by releasing and turning, and unlocking is achieved by lifting and turning. The locking hook 2 not only has a locking function but also serves to hook the locking pin 3. The locking pin 3 is hooked onto the limiting seat 10 via the locking hook 2, eliminating the need for separate storage of the locking pin 3, preventing loss, and making it more convenient and facilitating standardized operation.

[0035] To facilitate handling by operators, the connecting part 201 has a U-shaped structure and can be used as a handle.

[0036] like Figure 3As shown in this specific embodiment, the upper end of the locking pin 3 is provided with an installation cavity, 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, and nuts are provided at both ends of the bolt. The upper end of the connecting shaft extends into the connecting part 201 and is provided with a limit block 202. With this configuration, when the end door 6 is shaken by external force, the locking block 401 also moves together, exerting a force on the locking hook 2. After the connecting shaft is hinged, the locking hook 2 can have a small range of motion under the force of the locking block 401. Compared with welding or casting connection, it can avoid the locking hook 2 transmitting the force of the locking block 401 to the connection between the connecting shaft and the locking pin 3, causing the root of the connecting shaft to crack and the connection to fail. At the same time, the hinged connection makes it easy to disassemble the locking hook 2 for maintenance.

[0037] like Figure 1 As shown, in this specific embodiment, two limiting seats 10 are provided, and the end of the connecting part 201 away from the working part 204 protrudes from the limiting seat 10; by providing the connecting part 201 with the protruding limiting seat 10, it is possible to avoid the locking pin 3 being misaligned and stuck into the limiting seat 10 and difficult to remove. Specific Implementation Method Two

[0039] like Figures 1 to 2 As shown, this specific embodiment provides a railway freight car end door assembly, including an end door 6. A hinge rod is provided at the lower part of the end door 6. The hinge rod is used to rotatably connect with the hinge support of the freight car end beam 11 to realize the opening and closing of the end door 6. It also includes a locking assembly of the first embodiment. Two locking assemblies are symmetrically arranged. The lock seat 4 is provided on the end door 6. In order to avoid interference with the rotation of the lock hook 2, an avoidance groove is provided on the end door 6 at the position opposite to the lock block 401. The limiting seat 10 is used to be provided 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 hooked onto the mounting brackets 5 on both sides of the truck body.

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

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

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

[0044] The locking and unlocking process of the six components of this end door is as follows:

[0045] When it is necessary to close the end door 6, flip the end door 6 to the vertical position, lift the locking pin 3 upward to the upper part of the locking block 401, rotate the locking hook 2, lower the locking pin 3, the working part 204 engages with the locking block 401, and rotate the hook 1 to engage with the hanging seat 5; when it is necessary to open the end door 6, hold the end door 6, lift the locking pin 3 upward, rotate the locking hook 2, lower the locking pin 3 until the working part 204 engages 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 open.

[0046] As can be seen from the above specific embodiments, the present invention has the following beneficial effects:

[0047] 1. By cooperating with the limit seat 10, the lock seat 4 and the lock pin 3, the structure of the locking component is simplified. 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. Furthermore, the lock pin 3 can be hung on the limit seat 10 by the lock hook 2. There is no need to store the lock pin 3 separately, so it will not be lost. It is more convenient and standardized to use.

[0048] 2. By designing the connecting part 201 into a U-shaped structure, it is easier for the operator to grip and apply force;

[0049] 3. By installing the connecting shaft by hinge, the locking hook 2 can have a small range of motion under the force of the locking block 401. Compared with the welding connection, it can avoid the locking hook 2 transmitting the force of the locking block 401 to the connection between the connecting shaft and the locking pin 3, which would cause the root of the connecting shaft to crack and the connection to fail. At the same time, the hinge connection makes it easy to disassemble the locking hook 2 for maintenance.

[0050] 4. By providing the protruding limiting seat 10 to the connecting part 201, it is possible to prevent the locking pin 3 from being misaligned and stuck into the limiting seat 10, making it difficult to remove.

[0051] 5. By setting hook 1 and then hanging seat 5, the end door 6 is further limited, thereby improving the reliability of the end door 6 locking;

[0052] 6. By setting the upper positioning seat 12 and the lower positioning seat 13, the position of the end door 6 after it is opened can be limited, so as to prevent the end door 6 from colliding with the end beam 11.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locking assembly, comprising a limiting seat (10), a locking seat (4), and a locking pin (3), characterized in that... : The limiting seat (10) has a square-shaped structure, and the locking pin (3) passes through the limiting seat (10) and can move up and down relative to the limiting seat (10); The upper part of the locking post (3) is provided with a locking hook (2), the locking hook (2) includes a connecting part (201) and a working part (204). The connecting part (201) is rotatably connected to the locking post (3). The working part (204) includes a horizontal plate and a vertical plate. The horizontal plate is connected to the connecting part (201). After unlocking, the working part (204) can be hung on the limiting seat (10). 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 part (204) can be engaged with the locking block (401), and the inner side of the vertical plate abuts against the outer side of the locking block (401). The lock seat (4) is disposed above the limiting seat (10); The connecting part (201) has a square-shaped structure; The upper end of the locking pin (3) is provided with an installation cavity, and a connecting shaft is hinged in the installation cavity. The upper end of the connecting shaft extends into the connecting part (201) and is provided with a limit block (202). The end of the connecting part (201) away from the working part (204) extends out of the limiting seat (10).

2. The locking assembly as described in claim 1, characterized in that... The limiting seat (10) is provided in two parts.

3. A railway freight car end door assembly, comprising an end door (6), wherein a hinge rod is provided at the lower part of the end door (6), characterized in that... It also includes the locking assembly as described in claim 2, wherein the lock seat (4) is disposed on the end gate (6), and the end gate (6) is provided with an avoidance groove at a position opposite to the lock block (401), and the limiting seat (10) is used to be disposed on the railway freight car end beam (11).

4. The railway freight car end door assembly as described in claim 3, characterized in that... The end gate (6) is provided with hooks (1) at both ends, which can be rotated and can be hooked onto the hangers (5) on both sides of the railway freight car.

5. The railway freight car end door assembly as described in claim 4, characterized in that... The end gate (6) is provided with an upper positioning seat (12), which can abut against the lower positioning seat (13) on the railway freight car end beam (11). Both the upper positioning seat (12) and the lower positioning seat (13) are provided with positioning slopes.

6. The railway freight car end door assembly as described in claim 5, characterized in that... The locking components are arranged symmetrically in two parts.

7. The railway freight car end door assembly as described in claim 6, characterized in that... The end gate (6) is equipped with a handle.

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