Carriage moving traction device
By combining the design of buffer springs and telescopic rods with the automatic connection mechanism of sliding rods and fixed plates, the problem of self-locking instability of the carriage traction device during train operation is solved, and the impact force buffering and stable connection during traction are achieved, improving the convenience and service life of the device.
Patent Information
- Application Number
- CN202520712194.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The existing carriage traction device lacks a stable self-locking function during train operation, and is prone to detachment, especially under external influences, which affects the safety and stability of train operation.
The design employs a combination of buffer springs and telescopic rods, along with an automatic connection mechanism between the sliding rod and the fixed plate. The buffer springs and telescopic rods work together to achieve automatic connection and buffering, while the sliding rod and fixed plate work together to ensure that the components do not detach under vibration. 60Si2Mn steel springs are used to improve service life, and the auxiliary plate works with the threaded rod to ensure a stable connection.
It achieves impact buffering during the carriage traction process, ensures the stability and convenience of carriage connection, improves the practicality and service life of the device, and reduces equipment cost and maintenance difficulty.
Smart Images

Figure CN223962128U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of carriage traction devices, and in particular to a carriage moving traction device. Background Technology
[0002] As a key component of railway locomotives, the traction device plays a crucial role in transmitting traction and braking forces. It is installed at both ends of the train car or locomotive, and its performance directly affects the safety and stability of train operation. Given the importance of the traction rod in train operation, in order to prevent the traction rod from breaking and falling onto the track, causing safety hazards or even major safety accidents, an anti-fall-off device must be installed during use.
[0003] With the development of the railway transportation industry, the structure of traction devices is also constantly being innovated. Early hook structures are gradually being replaced by more complex structures such as self-locking mechanisms to meet practical needs.
[0004] Currently widely used traction devices still have many shortcomings. On the one hand, their applicability is poor. For different train models, such as EMUs, modifications to the train body are often required before they can be connected to the corresponding traction device, which undoubtedly increases the cost of use and maintenance. On the other hand, the self-locking device has a complex structure, resulting in high costs. Moreover, these self-locking devices usually require continuous auxiliary locking with the help of an electric cylinder and cannot be used directly without power. This can seriously affect the normal operation of the train and its emergency response capabilities in some special working conditions or sudden power outages.
[0005] A patent document with publication number CN217435724U discloses a traction device for railway locomotives. This device features a mounting plate with two long rods fixedly connected to the middle of one side of a U-shaped plate. The vertical plate of the U-shaped plate has two long rods fixedly connected to the ends of corresponding sets of L-shaped rods. The bent ends of the two sets of L-shaped rods on opposite sides are fixedly connected to the ends of corresponding columns. The short rods of the two sets of L-shaped rods on opposite sides are fixedly connected to the ends of corresponding sleeves. One end of a guide rod passes through the vertical plate of the U-shaped plate and is fixedly connected to one side of a baffle plate. A slot is provided at one end of the guide rod. This patent document facilitates locomotive traction connection.
[0006] The above-mentioned and existing technologies have the following defects: when the carriages are pulled together, they are affected by many external factors as they run on the track, and therefore do not have a stable self-locking function.
[0007] Therefore, a carriage moving traction device is proposed. Utility Model Content
[0008] The purpose of this utility model is to solve the shortcomings of the lack of stable self-locking function when traction is performed between carriages, due to the fact that the carriages are greatly affected by external factors when running on the track. Therefore, a carriage moving traction device is proposed.
[0009] To achieve the above objectives, the present invention adopts the following technical solution: a carriage moving traction device, comprising...
[0010] The first mounting plate has four telescopic rods fixedly connected to one side, and a connecting plate is fixedly connected to one end of each of the four telescopic rods.
[0011] A connecting frame is fixedly connected to the side of the connecting plate away from the telescopic rod. A support rod is slidably connected inside the connecting frame, and one side of the support rod is fixedly connected to the second mounting plate.
[0012] A buffer spring is fixedly connected to the side of the connecting plate and the first mounting plate that are close to each other. Fixing grooves are opened on both sides of the support rod. Two support plates are fixedly connected to the surface of the connecting plate.
[0013] The support plate is slidably connected with sliding rods, and the ends of the two sliding rods that are close to each other are fixedly connected with fixed plates. One side of the fixed plate is arc-shaped.
[0014] The arc surface of the sliding rod is fitted with a first spring, and the two ends of the first spring are fixedly connected to the support plate and the fixed plate, respectively. The size of the fixed plate is adapted to the size of the support rod fixing groove.
[0015] The aforementioned components achieve the following effects: automatic connection and buffering. The buffer spring, in conjunction with the telescopic rod, can effectively reduce the impact force during traction, protecting the carriage and connecting components. At the same time, with the cooperation of the first spring, sliding rod, and fixing plate, the first mounting plate and the second mounting plate installed on the carriage can be automatically connected and fixed, improving the convenience of the device.
[0016] Preferably, the surface of the fixing plate is provided with a circular groove, the inner surface of the support rod fixing groove is provided with a groove, the inner wall of the support rod groove is fixedly connected with a second spring, one end of the second spring is fixedly connected with a sliding rod, and one end of the sliding rod is semi-circular.
[0017] The effect achieved by the above components is that, through the cooperation of the second spring and the sliding rod, the fixing plate is fixed, which prevents the first spring from moving the fixing block under vibration during the operation of the carriage, causing the support rod to detach from the connecting frame, thus improving the practicality of the device.
[0018] Preferably, a connecting groove is provided on both sides of the support rod, and an operating block is slidably connected in the connecting groove of the support rod. The operating block is fixedly connected to the arc surface of the slide rod.
[0019] The effect achieved by the above components is that by setting up the operating block, it is easier for the staff to release the fixing block, thus improving the practicality of the device.
[0020] Preferably, the buffer spring is made of 60Si2Mn steel, and a buffer pad is fixedly connected inside the connecting frame.
[0021] The effect achieved by the above components is that by setting the buffer spring to a steel spring, the service life of the traction device is further improved.
[0022] Preferably, a support plate is fixedly connected to the surface of the connecting frame, a threaded rod is threaded into the support plate, an auxiliary plate is rotatably connected to one end of the threaded rod, an auxiliary groove is opened on the surface of the support rod, and a throttle is fixedly connected to one end of the threaded rod.
[0023] The effect achieved by the above components is that the cooperation between the auxiliary plate and the auxiliary groove further increases the stability when the support rod is connected to the connecting frame, thereby improving the practicality of the device.
[0024] Preferably, a round rod is fixedly connected to one side of the auxiliary plate, and the arc surface of the round rod is slidably connected to the support plate.
[0025] The effect achieved by the above components is as follows: by setting the round rod, a guiding effect is achieved, which avoids the threaded rod from causing the auxiliary plate to rotate when the threaded rod is rotated, thus preventing the auxiliary plate from accurately entering the support rod auxiliary groove.
[0026] Preferably, an anti-slip pad is fixedly connected to one side of the auxiliary plate, and the anti-slip pad is made of silicone.
[0027] The effect achieved by the above components is that by setting anti-slip pads, the threaded rod is prevented from loosening after long-term use, thus avoiding affecting the stability of the connection.
[0028] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0029] 1. In this utility model, by setting a buffer spring and a telescopic rod, the automatic connection and buffering effects are achieved. The buffer spring and the telescopic rod work together to effectively reduce the impact force during the traction process and protect the carriage and connecting parts. At the same time, with the cooperation of the first spring, the sliding rod and the fixing plate, the first mounting plate and the second mounting plate installed on the carriage can be automatically connected and fixed, which improves the convenience of the device.
[0030] 2. In this utility model, by setting a second spring and a sliding rod, the fixing plate is fixed, which avoids the first spring from moving the fixing block under vibration during the operation of the carriage, causing the support rod to detach from the connecting frame, thus improving the practicality of the device. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of the first mounting plate of this utility model.
[0032] Figure 2 This is a schematic diagram of the disassembled structure of the first mounting plate of this utility model;
[0033] Figure 3 This is a partial structural diagram of the connecting plate of this utility model;
[0034] Figure 4 This is a partial structural diagram of the second mounting plate of this utility model;
[0035] Figure 5 This is a schematic diagram of the structure of the round rod of this utility model;
[0036] Legend: 1. First mounting plate; 2. Second mounting plate; 3. Telescopic rod; 4. Connecting plate; 5. Connecting frame; 6. Support rod; 7. Support plate; 8. Buffer spring; 9. Sliding rod; 10. Fixed plate; 11. First spring; 12. Support plate; 13. Threaded rod; 14. Auxiliary plate; 15. Anti-slip pad; 16. Round rod; 17. Second spring; 18. Sliding rod; 19. Operating block; 20. Buffer pad. Detailed Implementation
[0037] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0038] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0039] like Figures 1-5As shown, this utility model provides a vehicle carriage moving traction device, including a first mounting plate 1 and a second mounting plate 2. Four telescopic rods 3 are fixedly connected to one side of the first mounting plate 1, and a connecting plate 4 is fixedly connected to one end of each of the four telescopic rods 3. A connecting frame 5 is fixedly connected to the side of the connecting plate 4 away from the telescopic rods 3. A support rod 6 is slidably connected inside the connecting frame 5. One side of the support rod 6 is fixedly connected to the second mounting plate 2. A buffer spring 8 is fixedly connected to the side of the connecting plate 4 and the first mounting plate 1 that is close to each other. Fixing grooves are provided on both sides of the support rod 6. Two support plates 7 are fixedly connected to the surface of the connecting plate 4. A sliding rod 9 is slidably connected inside the support plate 7. A fixing plate 10 is fixedly connected to the end of each of the two sliding rods 9 that is close to each other. One side of the fixing plate 10 is arc-shaped. A first spring 11 is fitted onto the arc surface of plate 9. Both ends of the first spring 11 are fixedly connected to the support plate 7 and the fixing plate 10, respectively. The size of the fixing plate 10 matches the size of the fixing groove of the support rod 6, achieving automatic connection and buffering effects. The buffer spring 8, in conjunction with the telescopic rod 3, effectively reduces the impact force during traction, protecting the carriage and connecting components. Simultaneously, with the cooperation of the first spring 11, the sliding rod 9, and the fixing plate 10, the first mounting plate 1 and the second mounting plate 2 installed on the carriage can be automatically connected and fixed, improving the convenience of the device. A circular groove is formed on the surface of the fixing plate 10, and a groove is formed on the inner surface of the fixing groove of the support rod 6. A second spring 17 is fixedly connected to the inner wall of the groove of the support rod 6. One end of the second spring 17 is fixedly connected to a sliding rod 18. One end of the support rod 10 is semi-circular. Through the cooperation of the second spring 17 and the sliding rod 18, the fixed plate 10 is secured, preventing the first spring 11 from moving under vibration during carriage operation and causing the support rod 6 to detach from the connecting frame 5. This improves the practicality of the device. Connecting grooves are provided on both sides of the support rod 6, and operating blocks 19 are slidably connected within these grooves. The operating blocks 19 are fixedly connected to the arc surface of the sliding rod 18. The operation blocks 19 facilitate the release of the fixed block by personnel, further improving the practicality of the device. The buffer spring 8 is made of 60Si2Mn steel, and a buffer pad 20 is fixedly connected within the connecting frame 5. By using a steel spring for the buffer spring 8, the traction device's performance is further enhanced. For extended service life, a support plate 12 is fixedly connected to the surface of the connecting frame 5. A threaded rod 13 is threaded into the support plate 12. An auxiliary plate 14 is rotatably connected to one end of the threaded rod 13. An auxiliary groove is formed on the surface of the support rod 6. A handle is fixedly connected to one end of the threaded rod 13. A round rod 16 is fixedly connected to one side of the auxiliary plate 14. The arc surface of the round rod 16 is slidably connected to the support plate 12. By setting the round rod 16, a guiding effect is achieved, preventing the threaded rod 13 from causing the auxiliary plate 14 to rotate when rotating, thus preventing the auxiliary plate 14 from accurately entering the auxiliary groove of the support rod 6. An anti-slip pad 15 is fixedly connected to one side of the auxiliary plate 14. The anti-slip pad 15 is made of silicone material. By setting the anti-slip pad 15, the threaded rod 13 is prevented from loosening after long-term use.It affects the stability of the connection.
[0040] The overall working principle is as follows: When the staff needs to move and traction the carriage, they use bolts to install the first mounting plate 1 and the second mounting plate 2 onto different carriages. The carriage with the second mounting plate 2 is then moved closer to the first mounting plate 1. The second mounting plate 2 drives the support rod 6 to move. When the support rod 6 contacts the fixed block, it presses against the arc surface of the fixed block. The fixed block causes the sliding rod 9 to slide within the support plate 7, compressing the first spring 11 until the support rod 6 slides into the connecting frame 5 and presses against the buffer pad 20. The support rod 6 applies force to the connecting frame 5 and the connecting plate 4, causing the connecting plate 4 to compress the telescopic rod 3 and the buffer spring 8 until the fixed block and the fixing groove of the support rod 6 are at the same level. Under the force of the first spring 11, the fixed block automatically springs into the fixing groove of the support rod 6. The arc surface of the fixing block is pressed against the semi-circular surface of the slide rod 18. The slide rod 18 drives the second spring 17 to compress within the groove of the support rod 6. The slide rod 18 slides within the groove of the support rod 6 and drives the operating block 19 to move. When the fixing block is fully inserted into the fixing groove of the support rod 6, the slide rod 18 automatically springs into the circular groove of the fixing block under the force of the first spring 11, achieving the effect of automatic connection and buffering. The buffer spring 8 cooperates with the telescopic rod 3 to effectively reduce the impact force during traction and protect the carriage and connecting parts. Afterwards, the operator rotates the threaded rod 13 within the support plate 12. The threaded rod 13 drives the auxiliary plate 14 to move, and the auxiliary plate 14 drives the round rod 16 to move within the support plate 12 until the anti-slip pad 15 on the auxiliary plate 14 abuts against the inner wall of the auxiliary groove of the support rod 6, achieving the effect of auxiliary fixing.
[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A carriage moving traction device, characterized in that: include A first mounting plate, on one side of which four telescopic rods are fixedly connected, and one end of each of the four telescopic rods is fixedly connected to a connecting plate; A connecting frame is fixedly connected to the side of the connecting plate away from the telescopic rod. A support rod is slidably connected inside the connecting frame, and one side of the support rod is fixedly connected to the second mounting plate. A buffer spring is fixedly connected to the side of the connecting plate and the first mounting plate that are close to each other. Fixing grooves are provided on both sides of the support rod. Two support plates are fixedly connected to the surface of the connecting plate. The support plate is slidably connected to a sliding rod, and the ends of the two sliding rods that are close to each other are fixedly connected to a fixing plate, one side of which is arc-shaped. The arc surface of the sliding rod is fitted with a first spring, and the two ends of the first spring are fixedly connected to the support plate and the fixing plate, respectively. The size of the fixing plate is adapted to the size of the support rod fixing groove.
2. The carriage moving traction device according to claim 1, characterized in that: The surface of the fixing plate is provided with a circular groove, the inner surface of the support rod fixing groove is provided with a groove, the inner wall of the support rod groove is fixedly connected with a second spring, one end of the second spring is fixedly connected with a sliding rod, and one end of the sliding rod is semi-circular.
3. The carriage moving traction device according to claim 2, characterized in that: Both sides of the support rod are provided with connecting grooves, and an operating block is slidably connected in the connecting groove of the support rod. The operating block is fixedly connected to the arc surface of the slide rod.
4. The carriage moving traction device according to claim 1, characterized in that: The buffer spring is made of 60Si2Mn steel, and a buffer pad is fixedly connected inside the connecting frame.
5. The carriage moving traction device according to claim 1, characterized in that: A support plate is fixedly connected to the surface of the connecting frame. A threaded rod is threaded into the support plate. An auxiliary plate is rotatably connected to one end of the threaded rod. An auxiliary groove is opened on the surface of the support rod. A throttle handle is fixedly connected to one end of the threaded rod.
6. The carriage moving traction device according to claim 5, characterized in that: A round rod is fixedly connected to one side of the auxiliary plate, and the arc surface of the round rod is slidably connected to the support plate.
7. The carriage moving traction device according to claim 5, characterized in that: An anti-slip pad is fixedly connected to one side of the auxiliary plate, and the anti-slip pad is made of silicone.
Citation Information
Patent Citations
Traction device for railway locomotive
CN217435724U