Railway vehicle connecting shaft facilitating angle adjustment
By designing the connecting shaft of the angle-adjustable end cover and the fixed structure, and utilizing the coordination of the engaging teeth and the return spring, the problem of rail vehicle parts being difficult to maintain at a specific angle is solved, achieving stable and vibration-resistant angle fixation.
Patent Information
- Application Number
- CN202423027985.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The parts on the existing rail vehicle connecting shafts are difficult to maintain at a specific angle for a long time, and the bolts are easy to loosen after being locked, resulting in the parts being unable to maintain the original angle.
A connecting shaft including an angle adjustment end cover, an angle adjustment fixing structure and an auxiliary fixing structure is designed. The parts are stably fixed at a specific angle through the engagement of the angle adjustment engaging teeth and the fixing teeth, and the angle is adjustable and maintained by using a reset spring and a sliding tube structure.
It enables rail vehicle parts to stay stably at a specific angle, can resist the influence of external vibrations and time of use, and maintain a fixed angle for a long time.
Smart Images
Figure CN223306136U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connecting shafts, in particular to a connecting shaft for convenient angle adjustment of a rail vehicle. Background Art
[0002] A connecting shaft is a cylindrical object that passes between bearings, wheels, or gears. A shaft is a mechanical component that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It is typically a metal rod, and each section can have different diameters.
[0003] Connecting shafts are widely used. For example, rail vehicles require many connecting shafts to install parts, such as reflectors, vent baffles, ventilation windows, etc. However, these parts installed through connecting shafts can rotate freely and are difficult to stay at a specific angle. Usually, they need to be locked with bolts to stay at a specific angle. However, after long-term use or experiencing vibration during rail vehicle operation, the locking bolts will loosen, causing the parts on the connecting shaft to move and unable to maintain the original specific angle. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a connecting shaft for a rail vehicle which is convenient for angle adjustment.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A connecting shaft for convenient angle adjustment of a rail vehicle comprises: a connecting shaft body, an angle adjustment end cap structure installed at one end of the connecting shaft body, an angle adjustment fixing structure movably installed on the outside of the connecting shaft body, and the angle adjustment fixing structure can engage with the angle adjustment end cap structure, and an auxiliary fixing structure is installed on the outside of the other end of the connecting shaft body; the angle adjustment end cap structure comprises: a fixed end cap and angle adjustment engaging teeth; the fixed end cap is fixedly installed at one end of the connecting shaft body, and the angle adjustment engaging teeth are installed on the inner side of the fixed end cap.
[0007] The utility model is further configured such that the angle adjustment fixing structure includes: an angle adjustment fixing tube, angle adjustment fixing teeth, a reset spring and an angle adjustment fixing seat; the angle adjustment fixing tube is movably sleeved on the outside of the connecting shaft body, the angle adjustment fixing teeth are installed on the inside of the angle adjustment fixing tube, and the angle adjustment fixing teeth and the angle adjustment engaging teeth are engaged with each other, the two ends of the reset spring are respectively installed on the inner side of the angle adjustment fixing tube and the inner side of the fixed end cover through a small turntable, and the angle adjustment fixing seat is installed on the outside of the angle adjustment fixing tube.
[0008] The utility model is further configured such that the auxiliary fixing structure includes: a sliding tube and a sliding fixing seat; the sliding tube is movably installed on the outside of the connecting shaft body, and the sliding fixing seat is installed on the outside of the sliding tube.
[0009] The present invention is further configured such that the end face angle of each tooth of the angle-adjustable meshing teeth is fifteen degrees, and the interval between every two adjacent teeth of the angle-adjustable meshing teeth is fifteen degrees.
[0010] The present invention is further configured such that the end face angle of each tooth of the angle adjustment fixed teeth is fifteen degrees, and the interval between every two adjacent teeth of the angle adjustment fixed teeth is fifteen degrees.
[0011] The utility model is further configured such that a handle is provided on the outer side of the fixed end cover.
[0012] The utility model is further configured such that a limit baffle is provided at the tail end of the connecting shaft body.
[0013] The beneficial effects of the present invention are as follows: the present invention uses two sets of mutually engaged angle adjustment teeth to enable rail vehicle parts to be connected to the rail vehicle body through the shaft, and also to allow rail vehicle parts to stay at a specific angle, and this stay can be maintained for a long time without being affected by external vibrations and usage time. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the engaging state of a connecting shaft for convenient angle adjustment of a rail vehicle proposed by the present invention;
[0015] Figure 2 This is a schematic diagram of the angle adjustment state of the overall structure of a connecting shaft for convenient angle adjustment of a rail vehicle proposed by the present invention;
[0016] Figure 3 This is an exploded schematic diagram of the local structure of a connecting shaft for convenient angle adjustment of a rail vehicle proposed by the utility model.
[0017] In the figure: 1. Connecting shaft body; 2. Fixed end cover; 3. Angle adjustment engaging teeth; 4. Angle adjustment fixing tube; 5. Angle adjustment fixing teeth; 6. Return spring; 7. Angle adjustment fixing seat; 8. Sliding tube; 9. Sliding fixing seat; 10. Handle; 11. Limit baffle. DETAILED DESCRIPTION
[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0019] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0020] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.
[0021] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.
[0022] Reference Figure 1-3 A connecting shaft for convenient angle adjustment of a rail vehicle comprises: a connecting shaft body 1, an angle adjustment end cover structure is installed at one end of the connecting shaft body 1, an angle adjustment fixing structure is movably installed on the outside of the connecting shaft body 1, and the angle adjustment fixing structure can be engaged with the angle adjustment end cover structure, and an auxiliary fixing structure is installed on the outside of the other end of the connecting shaft body 1; the angle adjustment end cover structure comprises: a fixed end cover 2 and an angle adjustment engaging tooth 3; the fixed end cover 2 is fixedly installed at one end of the connecting shaft body 1, the angle adjustment engaging tooth 3 is installed on the inner side of the fixed end cover 2, a handle 10 is provided on the outer side of the fixed end cover 2, and a limit baffle 11 is provided at the tail end of the connecting shaft body 1.
[0023] Specifically, the angle adjustment fixing structure includes: an angle adjustment fixing tube 4, an angle adjustment fixing tooth 5, a return spring 6 and an angle adjustment fixing seat 7; the angle adjustment fixing tube 4 is movably sleeved on the outside of the connecting shaft body 1, the angle adjustment fixing tooth 5 is installed on the inside of the angle adjustment fixing tube 4, and the angle adjustment fixing tooth 5 and the angle adjustment engaging tooth 3 are engaged with each other, and the two ends of the return spring 6 are respectively installed on the inner side of the angle adjustment fixing tube 4 and the inner side of the fixed end cover 2 through a small turntable, and the angle adjustment fixing seat 7 is installed on the outside of the angle adjustment fixing tube 4, the end face angle of each tooth of the angle adjustment engaging tooth 3 is fifteen degrees, and the interval between every two adjacent teeth of the angle adjustment engaging tooth 3 is fifteen degrees.
[0024] Specifically, the auxiliary fixing structure includes: a sliding tube 8 and a sliding fixing seat 9; the sliding tube 8 is movably installed on the outside of the connecting shaft body 1, and the sliding fixing seat 9 is installed on the outside of the sliding tube 8. The end face angle of each tooth of the angle adjustment fixing tooth 5 is fifteen degrees, and the interval between every two adjacent teeth of the angle adjustment fixing tooth 5 is fifteen degrees.
[0025] Working principle: The utility model is installed inside a rail vehicle and can connect parts that need to be rotated with the vehicle body, such as the vent baffle of a rail vehicle. The operator first installs the angle adjustment fixing seat 7 and the sliding fixing seat 9 on the vehicle body at the vent. At this time, the vent baffle and the connecting shaft body 1 are connected. When the angle of the vent baffle needs to be adjusted, the operator pulls the fixed end cover 2 through the handle 10, and the fixed end cover 2 drives the connecting shaft body 1 to translate inside the angle adjustment fixing tube 4 and the sliding tube 8 until the limit baffle 11 contacts the sliding tube 8. At this time, the angle adjustment engaging teeth 3 and the angle adjustment fixing teeth 5 are disengaged, and the return spring 6 is in a stretched state. The operator rotates the fixed end cover 2 and the connecting shaft body 1 through the handle 10. Since small turntables are provided at both ends of the return spring 6, the return spring 6 will not rotate with the fixed end cover 2. When the vent baffle is driven by the connecting shaft body 1 and rotates to the required angle, the operator slowly releases his hand, and the return spring 6 resets and contracts, allowing the angle adjustment engaging teeth 3 and the angle adjustment fixing teeth 5 to be engaged and fixed. At this time, the angle adjustment is completed.
[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A connecting shaft for a rail vehicle that facilitates angle adjustment, comprising: The connecting shaft body (1) is characterized in that an angle adjustment end cover structure is installed at one end of the connecting shaft body (1), an angle adjustment fixing structure is movably installed on the outside of the connecting shaft body (1), and the angle adjustment fixing structure can be engaged with the angle adjustment end cover structure, and an auxiliary fixing structure is installed on the outside of the other end of the connecting shaft body (1); the angle adjustment end cover structure includes: a fixed end cover (2) and an angle adjustment engaging tooth (3); the fixed end cover (2) is fixedly installed at one end of the connecting shaft body (1), and the angle adjustment engaging tooth (3) is installed on the inner side of the fixed end cover (2).
2. A connecting shaft for convenient angle adjustment of a rail vehicle according to claim 1, characterized in that: The angle adjustment fixing structure comprises: an angle adjustment fixing tube (4), an angle adjustment fixing tooth (5), a return spring (6) and an angle adjustment fixing seat (7); The angle adjustment fixing tube (4) is movably sleeved on the outside of the connecting shaft body (1); the angle adjustment fixing teeth (5) are installed inside the angle adjustment fixing tube (4); and the angle adjustment fixing teeth (5) and the angle adjustment engaging teeth (3) are engaged with each other; the two ends of the return spring (6) are respectively installed on the inner side of the angle adjustment fixing tube (4) and the inner side of the fixed end cover (2) through a small turntable; and the angle adjustment fixing seat (7) is installed on the outside of the angle adjustment fixing tube (4).
3. The connecting shaft for convenient angle adjustment of a rail vehicle according to claim 1, characterized in that: The auxiliary fixing structure comprises: a sliding tube (8) and a sliding fixing seat (9); The sliding tube (8) is movably mounted on the outside of the connecting shaft body (1), and the sliding fixing seat (9) is mounted on the outside of the sliding tube (8).
4. The connecting shaft for convenient angle adjustment of a rail vehicle according to claim 1, characterized in that: The end face included angle of each tooth of the angle-adjusting meshing teeth (3) is fifteen degrees, and the interval between every two adjacent teeth of the angle-adjusting meshing teeth (3) is fifteen degrees.
5. The connecting shaft for convenient angle adjustment of a rail vehicle according to claim 2, characterized in that: The end face included angle of each tooth of the angle adjustment fixed teeth (5) is fifteen degrees, and the interval between every two adjacent teeth of the angle adjustment fixed teeth (5) is fifteen degrees.
6. The connecting shaft for convenient angle adjustment of a rail vehicle according to claim 1, characterized in that: A handle (10) is provided on the outer side of the fixed end cover (2).
7. The connecting shaft for convenient angle adjustment of a rail vehicle according to claim 1, characterized in that: A limiting baffle (11) is provided at the tail end of the connecting shaft body (1).