Auxiliary closing device for middle door of railway open wagon

Abstract

The utility model provides an auxiliary closing device for a middle door of a railway open wagon, and belongs to the technical field of railway wagon maintenance. An auxiliary closing device for a middle door of a railway open wagon comprises a hook seat, a clamping hook, a pin shaft, a first pin hole, second pin holes and a supporting rod, the first pin hole is formed in the hook seat, the two second pin holes are formed in the clamping hook in the length direction, the pin shaft penetrates through the first pin hole and one of the second pin holes to connect the clamping hook with the hook seat, and the supporting rod is arranged on the hook seat. The supporting rod has a first state that the supporting rod is detachably connected to one end of the clamping hook in the length direction in the state of being in the length direction of the clamping hook, and has a second state that the supporting rod is detachably connected to the other end of the clamping hook in the length direction in the state of being perpendicular to the length direction of the clamping hook. The supporting rod is located on one side of the hook tip of the hook base in the first state and extends in the direction of the hook tip. The middle door closing device has the advantages of reducing the labor intensity of middle door closing operation and improving the utilization rate of the empty open wagon and the middle door closing operation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of railway vehicle maintenance, and particularly relates to a middle door auxiliary closer for an open railway wagon. Background Art

[0002] Open railway wagons are mainly used for loading bulk goods such as coal, ore, and steel that are not afraid of wind and rain. During daily use, the middle door of the vehicle is deformed due to the extrusion of goods, which easily causes plastic deformation of the middle door opening and closing device (opening and closing rod). After cleaning the goods, it cannot be normally closed. Usually, the method of tying iron wires at the hinges on the left and right sides of the middle door is used for fixation. Although this method can ensure that the vehicle meets the operation standards of national railway lines in the empty car state, it is difficult to guarantee in the heavy car state. Therefore, when the station does not have the corresponding renovation technical conditions, it often adopts methods such as discharging the loading formation and handing it over to the national railway vehicle depot for temporary renovation operations, reducing the utilization rate of the vehicle. Content of the Utility Model

[0003] To solve the above technical problems, the utility model proposes a middle door auxiliary closer for an open railway wagon.

[0004] The technical solution of the utility model is realized as follows:

[0005] An auxiliary closing device for the middle door of a railway gondola car, comprising a hook seat, a hook, a pin shaft, a first pin hole, a second pin hole and a support rod. The first pin hole is opened on the hook seat. Two second pin holes are opened along the length direction on the hook. The pin shaft connects the hook and the hook seat by passing through the first pin hole and one of the second pin holes. The support rod has a first state in which it is detachably connected to one end in the length direction of the hook along the length direction of the hook, and the support rod has a second state in which it is detachably connected to the other end in the length direction of the hook perpendicular to the length direction of the hook. When the support rod is in the first state, it is located on one side of the hook tip of the hook seat and extends along the direction of the hook tip. When the support rod is in the second state, it is located on the hook back side of the hook seat and is perpendicular to the hook tip. Connecting the hook and the hook seat through the pin shaft enables the hook seat to be stably installed on the middle door of the vehicle, allowing the hook to rotate relative to the hook seat to achieve the closing of the middle door of the vehicle. The first pin hole and the second pin hole provide an installation space for the pin shaft to ensure a stable connection between the hook and the hook seat. Using the support rod as a lever provides an auxiliary force for closing the middle door. The support rod is detachably connected to the hook and can be selected in the first state or the second state according to needs. The settings of the first state and the second state make the auxiliary closing device suitable for closing the door on the ground and also suitable for closing the door on the top of the carriage. When the staff closes the door on the ground, operate the pin shaft to pass through the first pin hole and one of the second pin holes to make the support rod in the first state, and push the support rod inward to assist in closing the middle door. When the staff closes the door on the top of the carriage, operate the pin shaft to pass through the first pin hole and the other second pin hole to make the support rod in the second state, and pull the support rod upward to assist in closing the middle door.

[0006] Further, a first insertion rod and a second insertion rod are respectively arranged at both ends of the hook, and a slot for the first insertion rod and the second insertion rod to insert is arranged at the end of the support rod. When the first insertion rod is inserted into the slot, the support rod is in the first state. When the second insertion rod is inserted into the slot, the support rod is in the second state. When the staff closes the door on the ground, by connecting the slot of the support rod with the first insertion rod, it is ensured that the support rod is in the first state. When the staff closes the door on the top of the carriage, by connecting the slot of the support rod with the second insertion rod, it is ensured that the support rod is in the second state.

[0007] Further, the first insertion rod, the second insertion rod and the slot are all rectangular structures. By setting that the second insertion rod, the second insertion rod and the slot are all rectangular structures, the stability of the connection between the support rod and the hook is enhanced, preventing the support rod from loosening or falling off during use.

[0008] Further, the first insertion rod is in a state where one end away from the hook is inclined outward. Through the inclined design of the first insertion rod, it is more smooth when inserting into the slot and more convenient when pushing the support rod inward.

[0009] Further, a top block is provided on one side of the hook. When the support rod is in the first state, the top block is in a relative state with the hook tip in the length direction of the hook seat. Through the setting of the top block, the support rod can use the top block as an auxiliary support point to enhance the stability when closing the middle door.

[0010] Further, ratchet rings fixed to the side surface of the hook are provided on the outer sides of the first pin hole and the second pin hole. A ratchet block is rotatably provided on the side surface of the hook seat. When the first insertion rod of the hook rotates towards the hook seat, the ratchet block cooperates with the ratchet ring to lock the hook and the hook seat. Through the cooperation of the ratchet ring and the ratchet block, the locking function of the hook and the hook seat is realized. When there is no external force, the support rod will not rebound, ensuring the stability and safety of the closer.

[0011] Further, the ratchet block is axially displaceable on the hook seat through the support rod, and the ratchet block can be separated from the ratchet ring by outward displacement. A return spring is provided between the ratchet block and the hook seat. By separating the ratchet block from the ratchet ring by outward displacement, the unlocking operation is facilitated. The setting of the return spring enables the ratchet block to automatically reset when there is no external force and maintain the locked state with the ratchet ring.

[0012] Further, the outer end of the support rod passes through the hook seat and is connected with a transverse pull plate. A strip-shaped groove is formed in the transverse pull plate, and a longitudinal pull plate is inserted into the strip-shaped groove. The middle part of the longitudinal pull plate is rotatably connected to the hook seat. After the staff closes the middle door standing on the top of the carriage, by pulling the longitudinal pull plate to move in the strip-shaped groove, the ratchet block is displaced outward to be separated from the ratchet ring, realizing unlocking.

[0013] Further, a pull rope is connected to the bottom end of the longitudinal pull plate. By providing the pull rope, after the staff closes the middle door standing on the ground, they can drive the longitudinal pull plate to move in the strip-shaped groove by pulling the pull rope, making the ratchet block displace outward to be separated from the ratchet ring, realizing unlocking, and further improving the operation convenience.

[0014] The utility model has the following beneficial effects:

[0015] 1. The locking of the hook seat and the hook is realized through the cooperation of the ratchet ring and the ratchet block, improving the stability and safety when closing the middle door. The design of the return spring ensures that the ratchet block can automatically reset, further enhancing the structural stability.

[0016] 2. By providing the pull rope and the longitudinal pull plate, the unlocking of the ratchet ring and the ratchet block is realized, improving the operation convenience.

[0017] 3. The state conversion of the support rod is realized by inserting the first insertion rod and the second insertion rod into the slot, adapting to the closing of the middle door at different positions, reducing the labor intensity of the middle door closing operation, and improving the efficiency of the middle door closing operation. Brief Description of the Drawings

[0018] Figure 1 is the overall schematic diagram of the present utility model;

[0019] Figure 2 is the enlarged view of part A of the present utility model;

[0020] Figure 3 is the overall schematic diagram of the hook seat of the present utility model;

[0021] Figure 4 is the enlarged view of part B of the present utility model;

[0022] Figure 5 is the schematic diagram of the first plug rod of the present utility model;

[0023] Figure 6 is the schematic diagram of the ratchet ring and the second pin hole of the present utility model;

[0024] Figure 7 is the schematic diagram of the support rod of the present utility model.

[0025] In the figure: 1, hook seat; 2, hook; 3, pin shaft; 4, first pin hole; 5, second pin hole; 6, support rod; 7, first plug rod; 8, second plug rod; 9, slot; 10, top block; 11, ratchet ring; 12, ratchet block; 13, return spring; 14, transverse pull plate; 15, strip groove; 16, longitudinal pull plate; 17, pull rope. Detailed Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Such as Figures 1 to 7As shown in the figure, a middle door auxiliary closer for a railway gondola car includes a hook seat 1, a hook 2, a pin shaft 3, a first pin hole 4, a second pin hole 5, and a support rod 6. The first pin hole 4 is opened on the hook seat 1. Two second pin holes 5 are opened along the length direction on the hook 2. The pin shaft 3 passes through the first pin hole 4 and one of the second pin holes 5 to connect the hook 2 and the hook seat 1. The support rod 6 has a first state in which it is detachably connected to one end in the length direction of the hook 2 along the length direction of the hook 2, and the support rod 6 has a second state in which it is detachably connected to the other end in the length direction of the hook 2 perpendicular to the length direction of the hook 2. When the support rod 6 is in the first state, it is located on the hook tip side of the hook seat 1 and extends along the direction of the hook tip. When the support rod 6 is in the second state, it is located on the hook back side of the hook seat 1 and is perpendicular to the hook tip. This design enables the hook seat 1 to be stably installed on the middle door of the vehicle. The pin shaft 3 passes through the first pin hole 4 of the hook seat 1 and one of the second pin holes 5 of the hook 2 to connect the hook seat 1 and the hook 2, allowing the hook 2 to rotate relative to the hook seat 1 to close the middle door. The support rod 6 acts as a lever to provide the necessary auxiliary force for closing the middle door. The first state and the second state of the support rod 6 enable the closer to adapt to the door closing requirements on the ground and on the top of the carriage.

[0028] First insertion rods 7 and second insertion rods 8 are respectively arranged at both ends of the hook 2, and a slot 9 for the first insertion rods 7 and the second insertion rods 8 to insert is arranged at the end of the support rod 6. When the first insertion rods 7 are inserted into the slot 9, the support rod 6 is in the first state. When the second insertion rods 8 are inserted into the slot 9, the support rod 6 is in the second state. This design allows the staff to select the appropriate state of the support rod 6 according to the door closing requirements on the ground and on the top of the carriage.

[0029] The first insertion rods 7, the second insertion rods 8, and the slot 9 are all rectangular structures. The first insertion rods 7, the second insertion rods 8, and the slot 9 are all designed with rectangular structures to enhance the stability of the connection and reduce the possibility of loosening or falling off.

[0030] The first insertion rods 7 are in a state where the ends away from the hook 2 are inclined outward. The first insertion rods 7 are designed with outwardly inclined ends, making it smoother and more convenient to insert into the slot 9.

[0031] A top block 10 is arranged on one side of the hook 2. When the support rod 6 is in the first state, the top block 10 is in a state opposite to the hook tip in the length direction of the hook seat 1. The top block 10 serves as an auxiliary support point for the support rod 6, providing additional stability for closing the middle door.

[0032] On the outer sides of the first pin hole 4 and the second pin hole 5, there are both ratchet rings 11 fixed to the side surface of the hook 2. A ratchet block 12 is rotatably arranged on the side surface of the hook seat 1. When the first insertion rod 7 of the hook 2 rotates towards the hook seat 1, the ratchet block 12 cooperates with the ratchet ring 11 to lock the hook 2 and the hook seat 1. When the hook 2 rotates, the ratchet block 12 will cooperate with the ratchet ring 11 to lock the hook 2 and the hook seat 1, enhancing the stability and safety of the closer.

[0033] The ratchet block 12 is installed on the hook seat 1 through a support rod 6 so that it can be displaced axially with respect to the ratchet ring 11, and the ratchet block 12 can be separated from the ratchet ring 11 by displacing outwards. A return spring 13 is arranged between the ratchet block 12 and the hook seat 1. The design of the ratchet block 12 allows it to displace outwards under the action of an external force, so as to separate from the ratchet ring 12. At the same time, a return spring 13 is also arranged between the ratchet block 12 and the hook seat 1 to ensure that it can automatically reset when not affected by an external force and maintain the locked state with the ratchet ring 11.

[0034] The outer end of the support rod 6 passes through the hook seat 1 and is connected to a transverse pull plate 14. A strip-shaped groove 15 is formed in the transverse pull plate 14, and a longitudinal pull plate 16 is inserted into the strip-shaped groove 15, and the middle part of the longitudinal pull plate 16 is rotatably connected to the hook seat 1. When the staff needs to unlock the hook 2 and the hook seat 1 after closing the middle door while standing on the top of the carriage, they only need to pull the longitudinal pull plate 16 to displace the ratchet block 12 outwards and separate it from the ratchet ring 11.

[0035] A pull rope 17 is connected to the bottom end of the longitudinal pull plate 16. When the staff closes the middle door while standing on the ground, they can pull the pull rope 17 to release the locked state between the ratchet block 12 and the ratchet ring 11.

[0036] When the staff closes the middle door while standing on the ground, the pin shaft 3 is passed through the first pin hole 4 of the hook seat 1 and one of the second pin holes 5 of the hook 2 to connect the hook 2 and the hook seat 1. Then the first insertion rod 7 is inserted into the slot 9 of the support rod 6. At this time, the support rod 6 is in the first state, and the hook seat 1 is fixed to the upper side beam of the vehicle. Push the support rod 6 inwards to make the hook 2 rotate towards the hook seat 1, and the top block 10 cooperates with the support rod 6 to close the middle door of the vehicle. When the hook 2 rotates towards the hook seat 1, the ratchet block 12 cooperates with the ratchet ring 11 to lock the hook 2 and the hook seat 1. After closing the middle door, the staff can drive the longitudinal pull plate 16 to move in the strip-shaped groove 15 of the transverse pull plate 14 by pulling the pull rope 17, so that the ratchet block 12 displaces outwards and separates from the ratchet ring 11 to achieve unlocking and separate the hook seat 1 from the vehicle.

[0037] When the staff stands on the top of the carriage to close the middle door, the pin shaft 3 is passed through the first pin hole 4 of the hook seat 1 and the other second pin hole 5 of the hook 2 to connect the hook 2 with the hook seat 1. Then the second insertion rod 8 is inserted into the slot 9 of the support rod 6. At this time, the support rod 6 is in the second state, and the hook seat 1 is fixed at the upper side beam of the vehicle. The support rod 6 is pulled upward so that the hook 2 rotates towards the hook seat 1, and the top block 10 cooperates with the support rod 6 to close the middle door of the vehicle. When the hook 2 rotates towards the hook seat 1, the ratchet block 12 cooperates with the ratchet ring 11 to lock the hook 2 and the hook seat 1. After the middle door is closed, the staff can pull the longitudinal pull plate 16 to move within the strip-shaped groove 15, so that the ratchet block 12 moves outward and separates from the ratchet ring 11, thereby releasing the locked state and separating the hook seat 1 from the vehicle.

[0038] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An auxiliary door closer for the middle door of a railway gondola car, characterized in that, It includes a hook seat (1), a hook (2), a pin shaft (3), a first pin hole (4), a second pin hole (5) and a support rod (6). The first pin hole (4) is formed in the hook seat (1). Two second pin holes (5) are formed in the hook (2) along the length direction. The pin shaft (3) connects the hook (2) and the hook seat (1) by passing through the first pin hole (4) and one of the second pin holes (5). The support rod (6) has a first state in which it is detachably connected to one end in the length direction of the hook (2) along the length direction of the hook (2), and the support rod (6) has a second state in which it is detachably connected to the other end in the length direction of the hook (2) perpendicular to the length direction of the hook (2). When the support rod (6) is in the first state, it is located on the hook tip side of the hook seat (1) and extends along the direction of the hook tip. When the support rod (6) is in the second state, it is located on the hook back side of the hook seat (1) and is perpendicular to the hook tip.

2. The auxiliary door closer for the middle door of a railway gondola car according to claim 1, wherein A first insertion rod (7) and a second insertion rod (8) are respectively arranged at both ends of the hook (2), and a slot (9) for the first insertion rod (7) and the second insertion rod (8) to insert is arranged at the end of the support rod (6). When the first insertion rod (7) is inserted into the slot (9), the support rod (6) is in the first state. When the second insertion rod (8) is inserted into the slot (9), the support rod (6) is in the second state.

3. The auxiliary door closer for the middle door of a railway gondola car according to claim 2, characterized in that, The first insertion rod (7), the second insertion rod (8) and the slot (9) are all rectangular structures.

4. The middle door auxiliary closer for a railway gondola car according to claim 2, wherein, The first insertion rod (7) is in a state where one end away from the hook (2) is inclined outward.

5. The auxiliary door closer for the middle door of a railway gondola car according to claim 1, characterized in that, A top block (10) is arranged on one side of the hook (2). When the support rod (6) is in the first state, the top block (10) is opposite to the hook tip in the length direction of the hook seat (1).

6. The middle door auxiliary closer for a railway gondola car according to claim 1, wherein Rack rings (11) fixed to the side surface of the hook (2) are arranged on the outer sides of the first pin hole (4) and the second pin hole (5). A rack block (12) is rotatably arranged on the side surface of the hook seat (1). When the hook (2) rotates with the first insertion rod (7) towards the hook seat (1), the rack block (12) cooperates with the rack ring (11) to lock the hook (2) and the hook seat (1).

7. The middle door auxiliary closer for a railway gondola car as described in claim 6, characterized in that, The rack block (12) is axially displaceable on the hook seat (1) through the support rod (6) and can be separated from the rack ring (11) by outward displacement. A return spring (13) is arranged between the rack block (12) and the hook seat (1).

8. The auxiliary door closer for the middle door of a railway gondola car according to claim 7, characterized in that, The outer end of the support rod (6) passes through the hook seat (1) and is connected with a transverse pull plate (14). A strip-shaped groove (15) is formed in the transverse pull plate (14). A longitudinal pull plate (16) is inserted into the strip-shaped groove (15), and the middle part of the longitudinal pull plate (16) is rotatably connected to the hook seat (1).

9. The auxiliary door closer for the middle door of a railway gondola car according to claim 8, characterized in that, A pull rope (17) is connected to the bottom end of the longitudinal pull plate (16).

Images