A folding railway train coupling device

Abstract

The utility model relates to rail transit equipment technical field and disclose a kind of folding railway train hook device, including base, hook body, hinged axle, bolt, the surface of base is equipped with hook body, the surface of base is rotatably connected with hinged axle, the surface of hinged axle is rotatably connected with the surface of hook body, the surface of base is slidably connected with bolt, the surface of base is equipped with clamping structure, clamping structure includes connecting plate, the surface of connecting plate is fixedly connected with the surface of base, the surface of connecting plate is equipped with sliding slot, the inner wall of sliding slot is slidably connected with moving plate, the surface of moving plate is fixedly connected with the surface of bolt, the inner wall of sliding slot is rotatably connected with two-way screw rod.

Description

Technical Field

[0001] This utility model relates to the field of rail transit equipment technology, specifically a folding railway train hook device. Background Technology

[0002] High-speed rail and freight trains place higher demands on the reliability and durability of coupling devices, and the widespread adoption of Internet of Things (IoT) technology is driving the development of equipment towards maintenance-free and long-life applications.

[0003] The locking mechanism is prone to loosening due to vibration. Traditional screw pairs lack anti-loosening design, and vibration during train operation can easily cause the hook to unlock unexpectedly. Over time, this affects the normal use of the device and consequently its working efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a foldable railway train hook device to solve the problem that the locking mechanism is easily loosened by vibration, and the traditional screw pair has no anti-loosening design. The vibration of the train operation can easily cause the hook to be accidentally unlocked, which will affect the normal use of the device and thus affect the working efficiency of the device in the long run.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a folding railway train hook device, comprising a base, a hook body, a hinge shaft, and a pin. The hook body is mounted on the surface of the base, and the hinge shaft is rotatably connected to the surface of the base. The surface of the hinge shaft is rotatably connected to the surface of the hook body. The pin is slidably connected to the surface of the base. The surface of the base is provided with a snap-fit ​​structure, which includes a connecting plate. The surface of the connecting plate is fixedly connected to the surface of the base. A groove is formed on the surface of the connecting plate, and a movable plate is slidably connected to the inner wall of the groove. The surface of the movable plate is fixedly connected to the surface of the pin. A bidirectional lead screw is rotatably connected to the inner wall of the groove. The arc surface of the lead screw is threadedly connected to the surface of the moving plate. The connecting plate is fixed to the base surface, providing an installation carrier for components such as the slide groove and the bidirectional lead screw, forming a frame for the snap-fit ​​structure. The slide groove limits the sliding trajectory of the moving plate, ensuring that the pin moves in a straight line and accurately inserts into or disengages from the hook. The moving plate connects the pin and the bidirectional lead screw, converting the rotational motion of the lead screw into the linear motion of the pin, realizing locking or unlocking actions. The bidirectional lead screw drives the two moving plates to move closer or further away synchronously through forward and reverse rotation, controlling the extension and retraction of the pin. The bidirectional thread design ensures that the pins on both sides move in a consistent manner.

[0007] Furthermore, a rotating plate is fixedly connected to one end of the bidirectional lead screw, and a screw is rotatably connected to the surface of the rotating plate. One end of the screw is threadedly connected to the surface of the connecting plate. The rotating plate provides an operating end for manually rotating the lead screw, increasing torque and facilitating effortless adjustment. The screw connects the rotating plate and the connecting plate, and after tightening, it fixes the position of the rotating plate, preventing the lead screw from loosening due to vibration and improving locking reliability.

[0008] Furthermore, a pad is fixedly connected to the surface of the movable plate. The pad is made of rubber. The pad is designed to cushion the collision between the movable plate and the connecting plate, thereby reducing noise and wear.

[0009] Furthermore, the surface of the base is provided with a dripping structure, which includes a fixing plate. The surface of the fixing plate is fixedly connected to the surface of the base. The surface of the fixing plate has a groove, and the inner wall of the groove has a square slot. The inner wall of the square slot is slidably connected to a slider. The surface of the slider is fixedly connected to a protective plate, and the surface of the fixing plate is fixedly connected to a dripping port. The fixing plate is fixed to the surface of the base and integrates the groove, dripping port, and other components to provide structural support for lubrication maintenance. The groove accommodates the protective plate, forming a protective space. The protective plate slides over the dripping port to prevent dust and rainwater from entering the dripping port and protect the internal components. The square slot limits the sliding path of the slider. The slider connects the protective plate and the fixing rod to ensure the smooth sliding of the protective plate. The dripping port provides a channel for adding lubricating oil, aligning with components requiring lubrication such as hinge shafts, facilitating precise dripping of maintenance grease.

[0010] Furthermore, a fixing rod is fixedly connected to the inner wall of the square groove. The arc surface of the fixing rod is slidably connected to the surface of the slider. The fixing rod is designed to pass through the slider, prevent the slider from falling out of the square groove, and improve the stability of the sliding of the protective plate.

[0011] Furthermore, a guide block is fixedly connected to the surface of the fixed plate. The cross-section of the guide block is triangular. The function of the guide block is to achieve the triangular cross-section, guide the lubricating oil to flow along the inclined surface to the hinge shaft, avoid grease overflow during dripping, and improve lubrication efficiency.

[0012] This utility model has the following beneficial effects:

[0013] (1) This utility model achieves the quick locking and unlocking function of the hook device by means of the linkage operation of the bidirectional screw, the moving plate and the pin in the snap-fit ​​structure, which drives the pin to accurately insert into or detach from the positioning hole of the hook body along a straight line.

[0014] (2) This utility model achieves long-term lubrication and dust protection for mechanical structures by coordinating the operation of the protective plate, the dripping port and the guide block in the dripping structure to drive the lubricating grease to flow precisely to key moving parts such as the hinge shaft.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the snap-fit ​​structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the dropping structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the dripping structure from another angle in this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Base; 2. Hook; 3. Hinge shaft; 4. Pin; 5. Snap-fit ​​structure; 51. Connecting plate; 52. Slide groove; 53. Moving plate; 54. Two-way lead screw; 55. Rotating plate; 56. Screw; 57. Pad; 6. Drip structure; 61. Fixing plate; 62. Groove; 63. Protective plate; 64. Square groove; 65. Slider; 66. Drip port; 67. Fixing rod; 68. Guide block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 - Figure 4As shown, this utility model is a folding railway train hook device, including a base 1, a hook body 2, a hinge shaft 3, and a pin 4. The hook body 2 is mounted on the surface of the base 1, and the hinge shaft 3 is rotatably connected to the surface of the base 1. The surface of the hinge shaft 3 is rotatably connected to the surface of the hook body 2. The pin 4 is slidably connected to the surface of the base 1. The surface of the base 1 is provided with a snap-fit ​​structure 5, which includes a connecting plate 51. The surface of the connecting plate 51 is fixedly connected to the surface of the base 1. A groove 52 is formed on the surface of the connecting plate 51. A moving plate 53 is slidably connected to the inner wall of the groove 52. The surface of the moving plate 53 is fixedly connected to the surface of the pin 4. A bidirectional lead screw 54 is rotatably connected to the inner wall of the groove 52. The circular... The curved surface is threadedly connected to the surface of the movable plate 53. The connecting plate 51 is fixed to the surface of the base 1, providing an installation carrier for components such as the slide groove 52 and the bidirectional screw 54, forming a frame for the snap-fit ​​structure. The slide groove 52 limits the sliding trajectory of the movable plate 53, ensuring that the pin 4 moves in a straight line and is accurately inserted into or disengaged from the hook 2. The movable plate 53 connects the pin 4 and the bidirectional screw 54, converting the rotational motion of the screw into the linear motion of the pin, thus achieving locking or unlocking. The bidirectional screw 54 drives the movable plates 53 on both sides to move closer or further away synchronously through forward and reverse rotation, controlling the extension and retraction of the pin 4. The bidirectional thread design ensures that the pins on both sides move in a consistent manner.

[0025] One end of the bidirectional lead screw 54 is fixedly connected to a rotating plate 55. A screw 56 is rotatably connected to the surface of the rotating plate 55. One end of the screw 56 is threadedly connected to the surface of the connecting plate 51. The rotating plate 55 provides an operating end for manually rotating the lead screw, increasing torque and facilitating effortless adjustment. The screw 56 connects the rotating plate 55 and the connecting plate 51. After tightening, the position of the rotating plate is fixed, preventing the lead screw from loosening due to vibration and improving locking reliability.

[0026] A pad 57 is fixedly connected to the surface of the movable plate 53. The pad 57 is made of rubber. The function of the pad 57 is to cushion the collision between the movable plate and the connecting plate 51, thereby reducing noise and wear.

[0027] The surface of the base 1 is provided with a dripping structure 6, which includes a fixing plate 61. The surface of the fixing plate 61 is fixedly connected to the surface of the base 1. The surface of the fixing plate 61 has a groove 62, and the inner wall of the groove 62 has a square groove 64. The inner wall of the square groove 64 is slidably connected to a slider 65. A protective plate 63 is fixedly connected to the surface of the slider 65. A dripping port 66 is fixedly connected to the surface of the fixing plate 61. The function of the fixing plate 61 is to fix it to the surface of the base 1 and integrate components such as the groove 62 and the dripping port 66, thereby providing lubrication and maintenance. The groove 62 provides structural support and accommodates the protective plate 63, forming a protective space. The protective plate 63 slides over the drip inlet 66 to prevent dust and rainwater from entering the drip inlet and protect internal components. The square groove 64 limits the sliding path of the slider 65. The slider 65 connects the protective plate 63 and the fixing rod 67 to ensure the smooth sliding of the protective plate. The drip inlet 66 serves as a channel for adding lubricating oil, aligning with components requiring lubrication, such as the hinge shaft 3, to facilitate precise application of maintenance grease.

[0028] A fixing rod 67 is fixedly connected to the inner wall of the square groove 64. The arc surface of the fixing rod 67 is slidably connected to the surface of the slider 65. The function of the fixing rod 67 is to pass through the slider 65, prevent the slider from falling out of the square groove 64, and improve the sliding stability of the protective plate 63.

[0029] A guide block 68 is fixedly connected to the surface of the fixed plate 61. The cross-section of the guide block 68 is triangular. The function of the guide block 68 is to achieve the triangular cross-section, guide the lubricating oil to flow along the inclined surface to the hinge shaft 3, avoid grease overflow during dripping, and improve lubrication efficiency.

[0030] The hook body 2 rotates relative to the base 1 via the hinge shaft 3, allowing the hook device to fold or unfold. In the folded state, it reduces space occupation when not in use. When unfolded, it is used for train connection. Rotating the rotating plate 55 in the locking structure 5 rotates the bidirectional lead screw 54, causing the moving plate 53 to slide along the slide groove 52, pushing the pin 4 into the positioning hole of the hook body 2, thus locking the hook body. The rotating plate 55 is then fixed by the screw 56 to prevent the lead screw from loosening. Reversing the rotation of the rotating plate 55 disengages the pin 4 from the hook body, releasing the fixation. The connecting plate 51 is fixed to the surface of the base 1, providing an installation carrier for components such as the slide groove 52 and the bidirectional lead screw 54, forming the frame of the locking structure. The slide groove 52 limits the sliding trajectory of the moving plate 53, ensuring the pin 4 moves in a straight line, accurately inserting or disengaging from the hook body 2. The moving plate 53 connects the pin 4 to the bidirectional lead screw 54. The lead screw 54 converts the rotational motion of the lead screw into the linear motion of the pin, realizing the locking or unlocking action. The bidirectional lead screw 54 is designed to drive the two moving plates 53 to move closer or further away synchronously through forward and reverse rotation, controlling the extension and retraction of the pin 4. The bidirectional thread design ensures that the pins on both sides move in unison. The rotating plate 55 provides an operating end for manually rotating the lead screw, increasing torque and facilitating effortless adjustment. The screw 56 connects the rotating plate 55 and the connecting plate 51. After tightening, it fixes the position of the rotating plate, preventing the lead screw from loosening due to vibration and improving locking reliability. The pad 57 is made of rubber and installed on the surface of the moving plate 53 to buffer the collision between the moving plate and the connecting plate 51, reducing noise and wear. The snap-fit ​​structure 5 is designed to minimize the risk of the locking mechanism loosening due to vibration. Traditional screw pairs do not have an anti-loosening design, and vibration during train operation can easily cause the hook to unlock unexpectedly.

[0031] The protective plate 63 in the sliding dripping structure 6 exposes the dripping port 66, allowing lubricating oil to be dripped onto moving parts such as the hinge shaft 3. After completion, the protective plate 63 is reset to prevent dust and water damage. The fixed plate 61 is fixed to the surface of the base 1 and integrates components such as the groove 62 and the dripping port 66, providing structural support for lubrication maintenance. The groove 62 accommodates the protective plate 63, forming a protective space. The protective plate 63 slides over the dripping port 66, preventing dust and rainwater from entering and protecting internal components. The square groove 64 limits the sliding path of the slider 65, and the slider 65 connects to the protective plate. The 63 and the fixing rod 67 ensure the smooth sliding of the protective plate. The function of the drip nozzle 66 is to provide a channel for lubricating oil, aligning it with components requiring lubrication such as the hinge shaft 3, facilitating precise dripping of maintenance grease. The function of the fixing rod 67 is to pass through the slider 65, preventing the slider from dislodging from the square groove 64 and improving the stability of the sliding of the protective plate 63. The function of the guide block 68 is to have a triangular cross-section, guiding the lubricating oil along the inclined surface to the hinge shaft 3, preventing grease overflow during dripping and improving lubrication efficiency. By setting up the dripping structure 6, the low efficiency of lubrication maintenance is minimized. Open oil filling holes are prone to dust entry, and manual application makes it difficult to control the amount used.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A folding railway train hook device, comprising a base (1), a hook body (2), a hinge shaft (3), and a pin (4), characterized in that: The base (1) is mounted with a hook (2), and the base (1) is rotatably connected with a hinge shaft (3). The surface of the hinge shaft (3) is rotatably connected with the surface of the hook (2). The base (1) is slidably connected with a pin (4). The base (1) is provided with a snap-fit ​​structure (5). The snap-fit ​​structure (5) includes a connecting plate (51). The surface of the connecting plate (51) is fixedly connected with the surface of the base (1). The surface of the connecting plate (51) is provided with a sliding groove (52). The inner wall of the sliding groove (52) is slidably connected with a moving plate (53). The surface of the moving plate (53) is fixedly connected with the surface of the pin (4). The inner wall of the sliding groove (52) is rotatably connected with a two-way screw (54). The arc surface of the two-way screw (54) is threadedly connected with the surface of the moving plate (53).

2. The folding railway train coupling device according to claim 1, characterized in that: One end of the bidirectional lead screw (54) is fixedly connected to a rotating plate (55), and a screw (56) is rotatably connected to the surface of the rotating plate (55). One end of the screw (56) is threadedly connected to the surface of the connecting plate (51).

3. A folding railway train coupling device according to claim 1, characterized in that: A pad (57) is fixedly connected to the surface of the movable plate (53), and the pad (57) is made of rubber.

4. A folding railway train coupling device according to claim 1, characterized in that: The base (1) has a dripping structure (6) on its surface. The dripping structure (6) includes a fixing plate (61). The surface of the fixing plate (61) is fixedly connected to the surface of the base (1). The surface of the fixing plate (61) has a groove (62). The inner wall of the groove (62) has a square groove (64). The inner wall of the square groove (64) is slidably connected to a slider (65). The surface of the slider (65) is fixedly connected to a protective plate (63). The surface of the fixing plate (61) is fixedly connected to a dripping port (66).

5. A folding railway train coupling device according to claim 4, characterized in that: A fixing rod (67) is fixedly connected to the inner wall of the square groove (64), and the arc surface of the fixing rod (67) is slidably connected to the surface of the slider (65).

6. A folding railway train coupling device according to claim 4, characterized in that: A guide block (68) is fixedly connected to the surface of the fixing plate (61), and the cross-section of the guide block (68) is triangular.

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