Carriage side door and freight carriage

Abstract

The present invention relates to a side door of a carriage and a freight carriage. The side door of the carriage includes a side door main body rotatably arranged on a door frame. The side door main body includes a door panel and a plug arranged on the door panel. The insertion end of the plug extends in a direction away from the door panel; a first locking assembly includes a first limiting member for rotatably connecting with the door frame and enabling the insertion end of the plug to be inserted between the first limiting member and the door frame; a second locking assembly is arranged on the side door main body and includes a base and a second limiting member movably arranged on the base. The second limiting member is selectively connected with the first limiting member and is used for restricting the rotation of the first limiting member. This structure can prevent the first limiting member from rotating due to vibration during the operation of the freight carriage, thereby avoiding the locking failure of the first locking assembly for the side door main body and ensuring the reliability of the side door of the carriage during operation. At the same time, this structure can avoid using consumables such as iron wires for bundling and fixing, saving costs.

Description

Technical Field

[0001] The present invention relates to the technical field of freight trains, and particularly to a side door of a carriage and a freight carriage including the side door of the carriage. Background Art

[0002] In the metallurgical industry, freight trains are needed to transport production materials such as coal, coke, and ore. In actual production, the operation efficiency of freight logistics is closely related to the steel smelting efficiency. A freight train includes a plurality of freight carriages connected in sequence, and a side door of the carriage is provided on the side wall of each freight carriage. The existing side door of the carriage refers to Figure 1 As shown, the side door of the carriage includes a side door main body 3′, and the side door main body 3′ is rotatably installed on the door frame of the freight carriage. A plug-in member 31′ is provided on the side door main body 3′, and a locking assembly 1′ is rotatably provided on the door frame. In the locked state, one end of the plug-in member 31′ is inserted between the locking assembly 1′ and the door frame, and then the rotation of the side door main body 3′ is restricted by the locking assembly 1′ to realize the limit fixation of the side door main body 3′. In the unlocked state, the locking assembly 1′ is rotated to be separated from the plug-in member 31′, and then the side door main body 3′ can be opened. In the freight logistics operation, it is necessary to quickly open or close the side door of the carriage to reduce the residence time of the freight train in the storage yard. Since the freight train vibrates greatly during driving, in order to prevent the locking assembly 1′ from rotating and separating from the plug-in member 31′. There are two existing methods. One is to use fasteners such as bolts, screws, and pins to fix the locking assembly 1′. The other is to use iron wire to tie the locking assembly 1′ and the plug-in member 31′ to prevent the two from separating. The existing technology has the following deficiencies: 1). Since the freight train vibrates greatly during operation, and the production materials in the carriage exert a large pressure on the side door main body 3′, it is easy to cause deformation of components such as fasteners, the locking assembly 1′, or the plug-in member 31′, and thus it is difficult to disassemble and assemble the fasteners when opening and closing the door. 2). Although the method of tying with iron wire can avoid the problem of difficult disassembly and assembly of each component due to deformation, the operation of tying with iron wire takes a long time, and the iron wire is difficult to reuse, thus increasing the cost. Summary of the Invention

[0003] An object of the present invention is to provide a side door of a carriage, which can quickly realize the opening and closing operations of the side door of the carriage and has a low cost.

[0004] Another object of the present invention is to provide a freight carriage, which is convenient for opening and closing the door and has a low cost.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A side door of a carriage provided on the door frame of a freight carriage includes:

[0007] The side door main body is rotatably arranged on the door frame. The side door main body includes a door panel and a plug arranged on the door panel. The insertion end of the plug extends in a direction away from the door panel.

[0008] The first locking assembly includes a first limiting member. The first limiting member is used for rotatably connecting with the door frame and enabling the insertion end of the plug to be inserted between the first limiting member and the door frame.

[0009] The second locking assembly is arranged on the side door main body and includes a base and a second limiting member movably arranged on the base. The second limiting member is selectively connected to the first limiting member, and the second limiting member is used for restricting the rotation of the first limiting member.

[0010] Further, the insertion end of the plug extends downward of the door panel. The second locking assembly is arranged on the plug. In the locked state, the first limiting member rotates to directly below the second locking assembly, and the second limiting member abuts against the first limiting member.

[0011] Further, the first locking assembly further includes a mounting seat. The mounting seat is provided with a groove with an upward opening. In the locked state, the first limiting member is inserted into the groove.

[0012] Further, the base has a receiving cavity. One end of the second limiting member is located in the receiving cavity and elastically connected to the cavity wall of the receiving cavity. The other end of the second limiting member extends to the outside of the receiving cavity and selectively abuts against the first limiting member.

[0013] Further, a limiting step is arranged at the end of the second limiting member located outside the receiving cavity. The first limiting member abuts against the limiting step.

[0014] Further, the second limiting member includes a first section and a second section that are rotatably connected. The first section is connected to the cavity wall of the receiving cavity, and the second section is used for abutting against the first limiting member.

[0015] Further, the second locking assembly further includes a driving rod. One end of the driving rod is hinged to the cavity wall of the receiving cavity. A first limiting hole is penetrated through the cavity wall of the receiving cavity. The other end of the driving rod passes through the first limiting hole and can move along the length direction of the first limiting hole. The non-end part of the driving rod is slidably connected to the second limiting member. By moving the driving rod along the length direction of the first limiting hole, the second limiting member is driven to move away from or close to the first limiting member.

[0016] Further, the driving rod is provided with an elongated hole, and a connecting shaft is horizontally arranged on the second limiting member. The connecting shaft passes through the elongated hole and can move along the length direction of the elongated hole.

[0017] Further, a second limiting hole is also penetratingly formed in the wall of the accommodating cavity. The first limiting hole is communicated with the second limiting hole. The distance from the first limiting hole to the first limiting member is smaller than the distance from the second limiting hole to the first limiting member. When the driving rod is located in the second limiting hole, the second limiting member is separated from the first limiting member.

[0018] A freight car body is also provided, including the above-mentioned side door of the car body.

[0019] Advantages of the present invention compared with the prior art:

[0020] For a side door of a car body and a freight car body of the present invention, the side door of the car body is provided with a second locking assembly on the side door main body. The second locking assembly includes a base and a second limiting member movably arranged on the base. The second limiting member telescopically moves relative to the base. And the second limiting member abuts against the first limiting member to realize the limiting and fixing of the first limiting member, so as to avoid the rotation of the first limiting member due to vibration during the operation of the freight car body, and further avoid the locking failure of the first locking assembly for the side door main body, and ensure the reliability of the side door of the car body during operation. Since the second limiting member and the first limiting member are limited and fixed by abutting against each other, it will not be affected by the deformation of parts. The operation is simple and convenient when opening and closing the door, and the opening and closing operation of the side door of the car body can be quickly realized. At the same time, this structure can avoid using consumables such as iron wires for bundling and fixing, saving costs. Description of the Drawings

[0021] Figure 1 It is a schematic connection diagram of a side door of a car body and a locking assembly in the prior art.

[0022] Figure 2 It is a schematic connection diagram of a side door of a car body, a first locking assembly and a second locking assembly according to an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of a second locking assembly according to an embodiment of the present invention.

[0024] Figure 4 It is a cross-sectional view of a second locking assembly according to an embodiment of the present invention.

[0025] Figure 5 It is a schematic diagram of a driving rod according to an embodiment of the present invention.

[0026] Figure 6 It is a schematic diagram of a freight car body according to an embodiment of the present invention.

[0027] Figure 1 In:

[0028] 1′, locking assembly; 3′, side door main body; 31′, plug-in component.

[0029] Figures 2 to 6 In:

[0030] 1, first locking assembly; 11, first limiting member; 12, mounting seat; 120, groove; 2, second locking assembly; 21, base; 210, accommodating cavity; 211, first limiting hole; 212, second limiting hole; 22, second limiting member; 221, first section; 222, second section; 223, limiting step; 23, spring; 24, driving rod; 241, long hole; 25, connecting shaft; 3, side door main body; 31, plug-in component; 32, door panel.

[0031] 100, freight car body; 110, door frame. Detailed implementation manner

[0032] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the drawings and through specific implementation manners.

[0033] Such as Figure 2 And Figure 6As shown in the figure, a side door of a carriage provided by the present invention is arranged on a freight carriage 100. A door frame 110 is arranged on the freight carriage 100, and the side door of the carriage is installed on the door frame 110. The side door of the carriage includes a side door main body 3, a first locking assembly 1 and a second locking assembly 2. Among them, the side door main body 3 is used to close the side door on the freight carriage 100. The side door main body 3 is rotatably arranged on the door frame 110. The top of the side door main body 3 is hinged to the door frame 110, and the opening and closing of the side door of the carriage are realized by the rotation of the side door main body 3 around its hinge point. The side door main body 3 includes a door panel 32 and a plug-in member 31 arranged on the door panel 32. One end of the plug-in member 31 is a plug-in end, and the plug-in end of the plug-in member 31 extends in a direction away from the door panel 32, that is, the projection of the plug-in end of the plug-in member 31 on the door panel 32 is located outside the door panel 32. The first locking assembly 1 includes a first limiting member 11. The first limiting member 11 is rotatably arranged on the door frame 110, and the first limiting member 11 is spaced from the door frame 110. An interval space capable of accommodating the plug-in member 31 is formed between the first limiting member 11 and the door frame 110. Furthermore, the plug-in end of the plug-in member 31 can be clamped between the first limiting member 11 and the door frame 110. The second locking assembly 2 is arranged on the side door main body 3. The second locking assembly 2 includes a base 21 and a second limiting member 22 movably arranged on the base 21. The second limiting member 22 is opposite to the first limiting member 11. The second limiting member 22 can move telescopically relative to the base 21. The second limiting member 22 is selectively connected to the first limiting member 11 so that the second limiting member 22 can limit the rotation of the first limiting member 11. It can be understood that the first limiting member 11 is used to limit the plug-in member 31 and restrict the rotation of the plug-in member 31 relative to the door frame 110 to fix the side door main body 3. The second limiting member 22 is used to limit the first limiting member 11 and restrict the rotation of the second limiting member 22 relative to the door frame 110 to prevent the first limiting member 11 from rotating due to vibration.

[0034] The side door of the carriage has a locked state and an unlocked state. In the locked state, the plug-in end of the plug-in member 31 is inserted between the first limiting member 11 and the door frame 110, and the second limiting member 22 extends and abuts against the first limiting member 11 to lock the side door main body 3. In the unlocked state, the second limiting member 22 shortens and separates from the first limiting member 11, and the first limiting member 11 rotates to a position away from the plug-in member 31 so that the side door main body 3 can rotate relative to the door frame 110 to open the side door main body 3.

[0035] Optionally, referring to Figure 2As shown, the plug-in 31 is arranged on the door panel 32 along the vertical direction, and the plug-in 31 is located on the outer side of the door panel 32. The door panel 32 is a rectangular flat plate structure, and a plurality of plug-ins 31 are arranged on the door panel 32 at intervals along the length direction of the door panel 32 (the X direction in the figure). Correspondingly, each plug-in 31 is correspondingly provided with a first locking assembly 1 and a second locking assembly 2. The plug-in 31 can be a steel section such as a channel steel or a square steel, and the plug-in 31 is arranged to penetrate the width direction of the door panel 32 (the Z direction in the figure) so as to enhance the structural strength of the side door body 3 through the plug-in 31. The first locking assembly 1 is arranged on the door frame 110 located below the door panel 32. The first locking assembly 1 also includes a mounting seat 12, and the mounting seats 12 have two mounting seats, which are respectively the first mounting seat and the second mounting seat, and the two mounting seats 12 are fixedly installed on the door frame 110 at intervals along the length direction of the side door of the vehicle compartment (the X direction in the figure). The first end of the first stopper 11 is hinged to the first mounting seat so that the first stopper 11 can rotate around its hinge point. The second mounting seat is provided with a groove 120, and the notch of the groove 120 faces upward. In the locked state, the first stopper 11 rotates to the right below the second locking assembly 2, and the second end of the first stopper 11 is inserted into the groove 120. The plug-in end of the plug-in 31 extends toward the bottom of the door panel 32, so that the plug-in end of the plug-in 31 can be inserted between the first stopper 11 and the door frame 110, and then the first stopper 11 is used to limit the rotation of the side door body 3.

[0036] Optionally, refer to Figure 3 , Figure 4 and Figure 5 As shown, the second locking assembly 2 includes a base 21, a second limiting member 22, a spring 23, a driving rod 24 and a connecting shaft 25. The base 21 is a hollow cavity structure, and a receiving cavity 210 is provided in the base 21. One end of the second limiting member 22 is located in the receiving cavity 210 and is elastically connected to the cavity wall of the receiving cavity 210, and the other end of the second limiting member 22 extends to the outside of the receiving cavity 210 and abuts against the first limiting member 11. The base 21 is fixedly mounted on the plug-in 31, and a first limiting hole 211 is provided through the side wall of the base 21 away from the plug-in 31. The first limiting hole 211 is a long hole, and the length direction of the first limiting hole 211 (Z direction in the figure) extends in the vertical direction. A avoidance hole is provided at the bottom of the base 21, and the avoidance hole is used to pass the second limiting member 22. The top of the second limiting member 22 is elastically connected to the top of the base 21 via a spring 23 . The spring 23 applies a downward elastic force to the second limiting member 22 , so that the second limiting member 22 can be pressed against the first limiting member 11 .

[0037] The second limiting member 22 includes a first section 221 and a second section 222. The first section 221 is rotatably connected to the second section 222. The second section 222 is located outside the receiving cavity 210, and the second section 222 can rotate relative to the first section 221. A limiting step 223 is provided at the bottom end of the second limiting member 22, that is, the limiting step 223 is located at the bottom of the second section 222. The limiting step 223 is used to abut against the top of the first limiting member 11. In the locked state, the second section 222 and the first section 221 are in the vertical direction. Under the elastic force of the spring 23, the second section 222 abuts against the top of the first limiting member 11 through the limiting step 223. In the unlocked state, the second limiting member 22 moves upward and the second section 222 is disengaged from the first limiting member 11. At this time, the second section 222 can be rotated to provide sufficient space for the rotation of the first limiting member 11, so that the first limiting member 11 can rotate below the first section 221.

[0038] The driving rod 24 is used to drive the second limiting member 22 to approach or move away from the first limiting member 11. One end of the driving rod 24 is hinged to the cavity wall of the receiving cavity 210, and the other end of the driving rod 24 passes through the first limiting hole 211 and extends to the outside of the base 21. A long hole 241 is formed in the driving rod 24, and the length direction of the long hole 241 extends along the length direction of the driving rod 24. A connecting shaft 25 extending in the horizontal direction is provided on the first section 221 of the second limiting member 22. The connecting shaft 25 is inserted into the long hole 241, and the connecting shaft 25 can slide along the length direction of the long hole 241. When the driving rod 24 is pulled from the outside of the base 21 to move along the length direction of the first limiting hole 211 (the Z direction shown in the figure), the connecting shaft 25 slides in the long hole 241 and the second limiting member 22 moves in the vertical direction. By making the non-end part of the driving rod 24 slidably connected to the second limiting member 22, the second limiting member 22 is driven to move away from or close to the first limiting member 11. It should be noted that the spring 23 is always in a compressed state. In the locked state, the elastic force of the spring 23 is applied to the first limiting member 11 through the second limiting member 22, and the driving rod 24 is located at the non-end part of the first limiting hole 211. In the unlocked state, the elastic force of the spring 23 is applied to the hole wall of the first limiting hole 211 through the second limiting member 22 and the driving rod 24.

[0039] When the second locking assembly 2 is in the unlocked state, the second limiting member 22 can be fixed at a position away from the first limiting member 11. A second limiting hole 212 is also provided through the wall of the accommodating cavity 210. The second limiting hole 212 communicates with the first limiting hole 211, so that the driving rod 24 can move from the first limiting hole 211 to the second limiting hole 212. The distance from the first limiting hole 211 to the first limiting member 11 is less than the distance from the second limiting hole 212 to the first limiting member 11. In the unlocked state, the driving rod 24 is pulled upward to move the second limiting member 22 away from the first limiting member 11, and then the driving rod 24 is moved into the second limiting hole 212 to fix the second limiting member 22 at a position away from the first limiting member 11. Conversely, when locking, only by moving the driving rod 24 from the second limiting hole 212 into the first limiting hole 211, the second limiting member 22 can be made to abut against the first limiting member 11 under the elastic force of the spring 23.

[0040] The specific operation method of the side door of the carriage is as follows: When closing the door, the first limiting member 11 is rotated to the side of the first mounting seat away from the second mounting seat, and the side door body 3 is rotated to the vertical direction so that the insertion end of the plug-in member 31 is located between the two mounting seats 12. Then the first limiting member 11 is rotated below the base 21, the second end of the first limiting member 11 is inserted into the groove 120 of the second mounting seat, and the plug-in member 31 is inserted between the first limiting member 11 and the door frame 110. The driving rod 24 is moved from the second limiting hole 212 into the first limiting hole 211, and the spring 23 drives the second limiting member 22 to move downward and abut against the top of the first limiting member 11. The side door body 3 is locked by the first locking assembly 1 and the second locking assembly 2. When opening the door, the operation is opposite to that when closing the door. The driving rod 24 is moved into the second limiting hole 212 to separate the second limiting member 22 from the first limiting member 11. Then the second section 222 of the second limiting member 22 is rotated to avoid the rotation of the first limiting member 11. The first limiting member 11 is rotated to the side of the first mounting seat away from the second mounting seat, and the side door body 3 can be opened.

[0041] The remarkable effects of this embodiment are as follows: By providing the second locking assembly 2 on the side door main body 3, the second locking assembly 2 includes a base 21 and a second limiting member 22 movably arranged on the base 21, and the second limiting member 22 moves telescopically relative to the base 21. And by the second limiting member 22 abutting against the first limiting member 11, the limiting and fixing of the first limiting member 11 are realized, so as to avoid the rotation of the first limiting member 11 due to vibration during the operation of the freight car body 100, and further avoid the locking failure of the first locking assembly 1 on the side door main body 3, ensuring the reliability of the operation of the car side door. Since the second limiting member 22 and the first limiting member 11 are limited and fixed by abutting against each other, it will not be affected by the deformation of parts. The operation is simple and convenient when opening and closing the door, and the opening and closing operation of the car side door can be quickly realized. At the same time, this structure can avoid using consumables such as iron wires for bundling and fixing, saving costs.

[0042] As Figure 6 shown, a freight car body 100 is also provided. The freight car body 100 is used for transporting production materials such as coal, coke and ore. Car side doors are provided on both sides in the width direction of the freight car body 100. And along the length direction of the freight car body 100, a plurality of car side doors are provided on each side of the freight car body 100. A square hole (i.e., side door) communicating with the outside is opened on the side surface of the freight car body 100, and a door frame 110 is arranged around the square hole. The door frame 110 is surrounded by profiled steel, which is used to strengthen the structural strength at the side door and facilitate the installation of the car side door. The side door main body 3 is rotatably installed on the top of the door frame 110. By providing the first locking assembly 1 and the second locking assembly 2 on the car side door, the side door main body 3 is locked, which is convenient to operate and has low cost.

[0043] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A side door of a carriage, which is arranged on the door frame of a freight carriage, is characterized in that, Comprising: A side door main body rotatably arranged on the door frame. The side door main body includes a door panel and a plug arranged on the door panel, and the insertion end of the plug extends in a direction away from the door panel. A first locking assembly, including a first limiting member for rotatably connecting with the door frame and enabling the insertion end of the plug to be inserted between the first limiting member and the door frame. A second locking assembly arranged on the side door main body, including a base and a second limiting member movably arranged on the base. The second limiting member is selectively connected to the first limiting member and is used to limit the rotation of the first limiting member.

2. The side door of the carriage according to claim 1, characterized in that, The insertion end of the plug extends downward of the door panel. The second locking assembly is arranged on the plug. In the locked state, the first limiting member rotates to directly below the second locking assembly and makes the second limiting member abut against the first limiting member.

3. The side door of the carriage according to claim 2, characterized in that The first locking assembly further includes a mounting seat provided with a groove with an upward notch. In the locked state, the first limiting member is inserted into the groove.

4. The side door of the carriage according to claim 1, characterized in that, The base has a receiving cavity. One end of the second limiting member is located in the receiving cavity and elastically connected to the cavity wall of the receiving cavity, and the other end of the second limiting member extends outside the receiving cavity and selectively abuts against the first limiting member.

5. The side door of the carriage according to claim 4, characterized in that, A limiting step is arranged at the end of the second limiting member outside the receiving cavity, and the first limiting member abuts against the limiting step.

6. The side door of the carriage according to claim 4, characterized in that, The second limiting member includes a first section and a second section connected by rotation. The first section is connected to the cavity wall of the receiving cavity, and the second section is used to abut against the first limiting member.

7. The side door of the carriage according to claim 4, characterized in that, The second locking assembly further includes a driving rod. One end of the driving rod is hinged to the cavity wall of the receiving cavity. A first limiting hole is penetrated through the cavity wall of the receiving cavity. The other end of the driving rod passes through the first limiting hole and can move along the length direction of the first limiting hole. The non-end part of the driving rod is slidably connected to the second limiting member. By moving the driving rod along the length direction of the first limiting hole, the second limiting member is driven to move away from or close to the first limiting member.

8. The side door of the carriage according to claim 7, wherein The driving rod is provided with an elongated hole. A connecting shaft is horizontally arranged on the second limiting member, and the connecting shaft passes through the elongated hole and can move along the length direction of the elongated hole.

9. The side door of the carriage according to claim 7, wherein A second limiting hole is further penetrated through the cavity wall of the receiving cavity. The first limiting hole is communicated with the second limiting hole. The distance from the first limiting hole to the first limiting member is less than the distance from the second limiting hole to the first limiting member. When the driving rod is located in the second limiting hole, the second limiting member is separated from the first limiting member.

10. A freight car body, characterized in that, Including the side door of the carriage according to any one of claims 1 to 9.

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