Open hook rod support seat with anti-jumping function and railway wagon

Abstract

The application discloses a kind of open hook rod support seat with anti-jumping function and railway wagon, the open hook rod support seat includes: seat plate, keyhole is provided on seat plate, keyhole includes round hole, the lower end of round hole is provided with first rectangular hole, the lower end of first rectangular hole away from the side of vehicle is expanded with second rectangular hole, guide surface, guide surface is set the lower end of first rectangular hole on the side of vehicle, for the flat part of open hook rod is introduced into second rectangular hole, the open hook rod support seat with anti-jumping function simple structure, high strength, reliable application, both by adding second rectangular hole on the structure of existing keyhole, so that the flat part of pull hook rod is moved to second rectangular hole after hook lock by guide surface, after vibration, gravity falls into second rectangular hole, effectively avoid flat part jump, also increase the avoidance compensation space when turning by second rectangular hole cooperation guide surface, adapt to railway wagon turning movement.

Description

Technical Field

[0001] This invention belongs to the technical field of railway freight car uncoupling rod support seats, and more specifically, relates to an uncoupling rod support seat with anti-jump function and a railway freight car. Background Technology

[0002] Railway freight cars need to be assembled into trains and pulled by locomotives. The cars are connected by automatic couplers. These couplers have an automatic coupling function, but when cars need to be uncoupled, they also have an automatic uncoupling function. Manual uncoupling by operators is required to separate the automatically coupled couplers between cars. Currently, most railway freight cars use type 13 or 17 lower-acting couplers. The unlocking of this type of lower-acting coupler is achieved by rotating the coupler release rod counterclockwise upwards along the circular hole in the release rod support seat, which drives the lower locking pin. The lower locking pin lifts the hook lock inside the coupler cavity. The hook lock drives the hook tongue pusher to rotate and open the hook tongue. After the hook tongue is opened, the two adjacent coupled couplers complete the car uncoupling operation during traction movement. The hook end of the hook-opening rod is hooked into the lower locking pin assembly hole of the lower coupler, while the other end needs to be installed on the hook-opening rod support seat. The existing hook-opening rod support seat hole adopts a keyhole structure. The function of this structure is that when the coupler needs to be opened, the hook-opening rod is lifted to the round hole and rotated to activate the lower locking pin assembly. When the coupler between vehicles is in the locked position, the hook-opening rod falls on the lower end surface of the rectangular hole below the round hole of the keyhole due to its own weight (see...). Figure 1 The existing hook rod support has the following problems in use:

[0003] (1) During normal coupling between vehicles in daily use, it was found that the flat part of the hook rod did not fall completely into the rectangular hole of the hook rod support seat. The hook rod with this type of fault will automatically jump from the bottom of the rectangular hole to the round hole due to the vibration of the vehicle during operation. After the hook rod is slightly deformed due to long-term use, it will fall by its own weight and be blocked from falling into the rectangular hole of the hook rod support seat. When the hook rod is in this position, there is a safety hazard of accidental hooking, which may lead to a vehicle accident of coupler separation during operation.

[0004] (2) The fit dimensions between the existing coupler opening rod support seat and the flat part of the opening rod are relatively small. From the dimensions and fit tolerances in the drawings, it can be concluded that after the vehicle is newly manufactured or repaired, the gap between the two must be controlled to ≤3mm. When the gap between the two is too small, when the vehicle passes through a curved section (especially a small radius curved section), the coupler will deflect at a certain angle in the horizontal direction with the end pin as the pivot. At this time, the center of the flat part of the opening rod and the vertical center of the opening rod support seat will be displaced. If the gap between the two is too small, the horizontal movement of the flat part of the opening rod will be restricted, which will cause the horizontal deflection of the coupler to be obstructed when the vehicle passes through the curve, affecting the vehicle's curve passing performance and bringing driving safety hazards when the vehicle passes through the curved line. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a hook rod support seat with anti-jump function, thereby solving the problems of existing hook rod support seats causing the coupler to detach and the risk of jamming when turning.

[0006] To achieve the above objectives, the present invention provides a hook rod support base with anti-jump function, comprising:

[0007] A seat plate, wherein a keyhole is provided on the seat plate, the keyhole includes a circular hole, a first rectangular hole is provided at the lower end of the circular hole, and a second rectangular hole is extended outward at the lower end of the first rectangular hole away from the vehicle body.

[0008] A guide surface is provided at the lower end of the first rectangular hole near the vehicle body side, for guiding the flat part of the hook rod into the second rectangular hole.

[0009] Optionally, a chamfer is provided at the upper end of the first rectangular hole on the side away from the vehicle body and before the upper end of the second rectangular hole near the first rectangular hole, and the chamfer cooperates with the guide surface.

[0010] Optionally, the guide surface is an inclined surface or an arc surface that mates with the lower end surface of the flat portion.

[0011] Optionally, the height of the second rectangular hole is equal to the height of the hook rod, and the distance between the far ends of the second rectangular hole and the first rectangular hole is not greater than the height of the flat portion.

[0012] Optionally, an anti-jump mechanism is provided between the second rectangular hole and the circular hole, the anti-jump mechanism comprising:

[0013] A limiting plate is provided on the base plate, the through hole is connected to the first rectangular hole and the outside, and the limiting plate is disposed at the end of the through hole away from the first rectangular hole;

[0014] A latch, one end of which passes through the limiting plate and the through hole and is horizontally inserted into the first rectangular hole;

[0015] An elastic component is disposed within the through hole to provide a force for inserting the latch into the first rectangular hole.

[0016] Optionally, the insertion end of the latch is provided with an interference portion that obstructs the hook rod, and the interference portion can be completely retracted into the through hole.

[0017] Optionally, a guide slope is provided on the side of the interference portion near the circular hole, the upper end of the guide slope is not exposed outside the through hole, and an obstruction plane is provided on the side of the interference portion away from the circular hole.

[0018] Optionally, the limiting plate is provided with a rectangular groove, and the latch is provided with a rectangular block that mates with the rectangular groove.

[0019] Optionally, the other end of the latch is exposed outside the limiting plate, and the exposed end of the latch is provided with a handle.

[0020] The present invention also provides a railway freight car, including the above-mentioned hook rod support seat with anti-jump function.

[0021] This invention provides a hook rod support base with anti-jump function, the advantages of which are:

[0022] This hook rod support with anti-jump function has a simple structure, high strength, and reliable operation. By adding a second rectangular hole to the existing keyhole structure, the flat part of the hook rod moves into the second rectangular hole through the guide surface after hooking and locking. When the railway freight car moves, the flat part vibrates, and its upward, rightward, and downward movements are all blocked and restricted. It also needs to rise along the guide surface to move to the left. After vibration, it falls back into the second rectangular hole under gravity, effectively preventing the flat part from jumping off. The second rectangular hole, in conjunction with the guide surface, also increases the space for avoidance compensation when turning, adapting to the turning movement of railway freight cars.

[0023] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0025] Figure 1 A schematic diagram of the structure of a prior art hook rod support is shown.

[0026] Figure 2 A schematic diagram of a hook rod support base with anti-jump function according to an embodiment of the present invention is shown.

[0027] Figure 3 A schematic diagram of the latch structure of a hook rod support seat with anti-jump function according to an embodiment of the present invention is shown.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Seat plate; 2. Second rectangular hole; 3. Guide surface; 4. Limiting plate; 5. Clamping tongue; 6. Elastic component. Detailed Implementation

[0030] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0031] like Figure 2-3 As shown, a hook rod support base with anti-jump function includes:

[0032] Seat plate 1, the seat plate 1 is provided with a keyhole, the keyhole includes a round hole, the lower end of the round hole is provided with a first rectangular hole, and the lower end of the first rectangular hole away from the vehicle body is extended with a second rectangular hole 2.

[0033] Guide surface 3, the lower end of the first rectangular hole near the vehicle body is provided, for guiding the flat part of the hook rod into the second rectangular hole 2.

[0034] Specifically, by adding a second rectangular hole 2 to the existing keyhole structure, the flat part of the hook rod moves into the second rectangular hole 2 after hooking and locking via the guide surface 3. When the railway freight car moves, the flat part vibrates, and its upward, rightward, and downward movements are all blocked and restricted. It also needs to rise along the guide surface 3 to move to the left. After vibration, it falls back into the second rectangular hole 2 under gravity, effectively preventing the flat part from jumping off. At the same time, the second rectangular hole 2, together with the guide surface 3, also increases the space for avoidance compensation when turning, adapting to the turning movement of railway freight cars.

[0035] Furthermore, when the hook rod moves to the left, the side sliding surface of the hook rod support seat experiences a gradual uphill slope during the leftward movement. Therefore, the slight swaying of the hook rod during operation is affected by the side sliding surface. Once the hook rod contacts the side sliding surface, the resistance it experiences increases non-linearly as the surface becomes increasingly steep from right to left. Because of the side sliding surface on the support seat, the hook rod remains on the right side of the support surface in its free state. When the hook rod is subjected to severe vibration and jumps sharply upwards from this position, the upper right side of the hook rod contacts the anti-jump surface of the hook rod support seat, thus resisting its upward movement and providing an anti-jump effect.

[0036] In this embodiment, a chamfer is provided at the upper end of the first rectangular hole away from the vehicle body and before the upper end of the second rectangular hole 2 near the first rectangular hole, and the chamfer cooperates with the guide surface 3.

[0037] Specifically, the chamfer avoidance of the flat part facilitates the flat part to enter the second rectangular hole 2 along the guide surface 3, while also restricting the flat part from jumping out of the second rectangular hole 2.

[0038] In this embodiment, the guide surface 3 is an inclined surface or an arc surface that matches the lower end surface of the flat portion.

[0039] Specifically, the lower end of some flat sections is curved, and the chamfer or rounded corners are selected according to the curvature of the curved surface.

[0040] In this embodiment, the height of the second rectangular hole 2 is equal to the height of the hook rod, and the distance between the far ends of the second rectangular hole 2 and the first rectangular hole is not greater than the height of the flat portion.

[0041] Specifically, a second rectangular hole 2 can be formed by cutting or grinding a notch 4-5mm outward from the original keyhole to the right (away from the vehicle body side), which restricts the flat part from coming out and prevents the flat part from rotating.

[0042] In this embodiment, an anti-jump mechanism is provided between the second rectangular hole 2 and the circular hole. The anti-jump mechanism includes:

[0043] The limiting plate 4 and the base plate 1 are provided with a through hole, which connects the first rectangular hole and the outside. The limiting plate 4 is located at the end of the through hole that is away from the first rectangular hole.

[0044] The latch 5, one end of which passes through the limiting plate 4 and the through hole and is horizontally inserted into the first rectangular hole;

[0045] The elastic component 6 is disposed in the through hole and is used to provide force for inserting the latch 5 into the first rectangular hole.

[0046] Specifically, the latch 5, through the elastic component 6, maintains the state of interference and hinders the movement of the flat part within the first rectangular hole, further improving the reliability of the anti-detachment mechanism.

[0047] Furthermore, the elastic component is a spring fitted on the latch 5. The latch 5 has a locking part near the interference part, and the two ends of the spring are connected to the limiting plate 4 and the locking part, respectively.

[0048] In this embodiment, the insertion end of the latch 5 is provided with an interference part that obstructs the hook rod, and the interference part can be completely retracted into the through hole.

[0049] Specifically, when the hook rod needs to be driven to lift the flat part, the compressible elastic component 6 causes the interference part to retract into the through hole.

[0050] In this embodiment, a guide slope is provided on the side of the interference part near the circular hole, and the upper end of the guide slope is not exposed outside the through hole. An obstruction plane is provided on the side of the interference part away from the circular hole.

[0051] Specifically, the guide slope facilitates the flat part to be squeezed into the through hole by gravity and then enters the second rectangular hole 2 by its own weight, thus changing its use.

[0052] In this embodiment, a rectangular groove is provided on the limiting plate 4, and a rectangular block that cooperates with the rectangular groove is provided on the latch 5.

[0053] Specifically, the latch 5 is guided and restricted by the interaction between the rectangular groove and the rectangular block, ensuring that the latch 5 slides while preventing the latch 5 from rotating.

[0054] In this embodiment, the other end of the latch 5 is exposed outside the limiting plate 4, and the exposed end of the latch 5 is provided with a handle.

[0055] Specifically, the movement of the latch 5 is driven by the handle.

[0056] The present invention also provides a railway freight car, including the above-mentioned hook rod support seat with anti-jump function.

[0057] In this embodiment, a hook-opening rod support seat with anti-jump function is used, taking railway freight cars as an example:

[0058] The flat part of the hook rod enters the first rectangular hole through the round hole, and then passes through the guide surface 3 and enters the second rectangular hole 2. At this time, the flat part is in an eccentric state.

[0059] When the railway freight car moves, the flat section vibrates, and its upward, rightward and downward movements are all blocked and restricted. It also needs to rise along the guide surface 3 to move to the left. After the vibration, it falls back into the second rectangular hole 2 under the force of gravity, effectively preventing the flat section from jumping off.

[0060] If an anti-jump mechanism is also provided, the interference part will retract into the through hole when the handle is pulled before lifting the flat part;

[0061] When a railway freight car goes around a curve, the second rectangular hole 2, in conjunction with the first rectangular hole, increases the horizontal movement space of the flat part. That is, the second rectangular hole 2, in conjunction with the guide surface 3, also increases the space for avoidance compensation when going around a curve, adapting to the turning motion of the railway freight car and preventing the hook rod from sliding unsmoothly or even getting stuck and bent when going around a curve.

[0062] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An open hook rod support seat with a jump prevention function, characterized in that, include: A seat plate, wherein a keyhole is provided on the seat plate, the keyhole includes a circular hole, a first rectangular hole is provided at the lower end of the circular hole, and a second rectangular hole is extended outward at the lower end of the first rectangular hole away from the vehicle body. A guide surface is provided at the lower end of the first rectangular hole near the vehicle body side, for guiding the flat part of the hook rod into the second rectangular hole; An anti-jump mechanism is provided between the second rectangular hole and the circular hole, the anti-jump mechanism comprising: A limiting plate is provided on the base plate, the through hole is connected to the first rectangular hole and the outside, and the limiting plate is disposed at the end of the through hole away from the first rectangular hole; A latch, one end of which passes through the limiting plate and the through hole and is horizontally inserted into the first rectangular hole; An elastic component, disposed within the through hole, is used to provide a force for inserting the latch into the first rectangular hole; The insertion end of the latch is provided with an interference part that obstructs the hook rod, and the interference part can be completely retracted into the through hole.

2. The open hook rod support seat with anti-jumping function according to claim 1, characterized in that, The upper end of the first rectangular hole on the side away from the vehicle body and the upper end of the second rectangular hole near the first rectangular hole are provided with a chamfer, and the chamfer cooperates with the guide surface.

3. The open hook rod support seat with anti-jumping function according to claim 1, characterized in that, The guide surface is an inclined surface or an arc surface that matches the lower end surface of the flat part.

4. The open hook rod support seat with anti-jumping function according to claim 1, characterized in that, The height of the second rectangular hole is equal to the height of the flat portion, and the distance between the far ends of the second rectangular hole and the first rectangular hole is not greater than the height of the flat portion.

5. The open hook rod support seat with anti-jumping function according to claim 1, characterized in that, A guide slope is provided on the side of the interference part near the circular hole, and the upper end of the guide slope is not exposed outside the through hole. An obstruction plane is provided on the side of the interference part away from the circular hole.

6. The open hook rod support seat with anti-jumping function according to claim 1, characterized in that, The limiting plate is provided with a rectangular groove, and the latch is provided with a rectangular block that mates with the rectangular groove.

7. The open hook rod support seat with anti-jumping function according to claim 1, characterized in that, The other end of the latch is exposed outside the limiting plate, and a handle is provided at the exposed end of the latch.

8. A railway freight car, characterized in that, Includes the hook rod support with anti-jump function as described in any one of claims 1-7.

Images