Simple release valve pull rod
By designing a simple relief valve pull rod, using the principle of specific shape pull rings and leverage, the problem of difficulty in exhausting the residual wind of the funnel vehicle is solved, and the effect of reducing operating strength and improving safety is achieved, meeting the maintenance needs of railway trucks.
Patent Information
- Application Number
- CN202422406528.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-30
AI Technical Summary
When the funnel vehicle is not equipped with a semi-automatic relief valve pull rod, it is difficult to exhaust the residual air, resulting in incomplete opening of the bottom door of the self-produced vehicle, low safety, difficult operation, and high working intensity.
A simple relief valve pull rod is designed, including a straight rod, a first and second pull ring fixed to both ends of the straight rod. The pull ring structure is specific in shape for easy operation. The rod body uses the lever principle to achieve stable down pressure and reduce operating strength.
It reduces the intensity of vehicle exhaust air, improves the efficiency of handling incomplete locking and door closing in the first and second stages, has high safety, simple structure, saves time and effort on operation, meets the maintenance requirements of railway trucks, and improves transportation efficiency.
Smart Images
Figure CN223187500U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of the brake release operation of a hopper car, and particularly relates to a simple release valve pull rod. Background Art
[0002] When a semi-automatic release valve pull rod is not installed on a hopper car, there is residual air in the main pipe, and it is difficult to exhaust all the residual air. There may be a situation where the bottom door of a self-provided car body cannot be normally closed due to incomplete exhaust. Especially when manually performing the exhaust operation, the safety factor is low, it is not easy to operate, and the working intensity is relatively high. In view of this, this application provides a simple release valve pull rod. Content of the Utility Model
[0003] To solve the above technical problems, the utility model provides a simple release valve pull rod.
[0004] The technical solution of the utility model is realized as follows:
[0005] A simple release valve pull rod includes a straight rod and a first pull ring and a second pull ring fixedly arranged at both ends of the straight rod. Among them, both the first pull ring and the second pull ring include four sides, two of which are parallel to the straight rod. The sides connected to the straight rod are straight, and the sides opposite to the straight rod are arc-shaped with an outward arch, and the length of the sides parallel to the straight rod is greater than the length of the sides connected to the straight rod.
[0006] Further, the straight rod includes a first rod body and a second rod body. One end of the first rod body is fixedly connected to the first pull ring, and one end of the straight rod is fixedly connected to the second pull ring, and the first rod body and the second rod body are rotatably connected.
[0007] Further, a rotating shaft is fixedly installed on the side surface of the first rod body, and the second rod body is rotatably sleeved on the rotating shaft.
[0008] Further, a strip-shaped groove is formed on the second rod body, and the strip-shaped groove is slidably sleeved on the rotating shaft.
[0009] Further, pin holes are equally spaced on the upper and lower side surfaces of the second rod body corresponding to the strip-shaped groove, and pins are inserted into the pin holes.
[0010] Further, the pin is in a "U" - shaped structure, and both ends of the pin are used to be inserted into two adjacent pin holes simultaneously, and the distance between two adjacent pin holes is greater than the outer diameter of the rotating shaft.
[0011] Further, the second rod body includes a first part, a second part, and a third part. The first part is a rod-shaped structure, and one end of the first part is fixed to the second pull ring. The second part is a "C"-shaped structure, and the closed end of the second part is fixedly connected to the other end of the first part. The third part is a "C"-shaped structure. The third part and the first part are in a fixed state with an open mouth, and the end of the third part far from the second part is located outside the first rod body.
[0012] The utility model has the following beneficial effects:
[0013] The simple release valve pull rod of this application reduces the working intensity of vehicle exhaust, greatly improves the working efficiency of dealing with situations such as first- and second-level locking and incomplete door closing, and has the advantages of simple structure, simple operation, time-saving and labor-saving. It can meet the requirements of renovation technical conditions in the daily maintenance operation of railway freight cars, reduce the vehicle renovation time, and thus improve the vehicle transportation efficiency. Description of the Drawings
[0014] Figure 1 is a schematic diagram of Embodiment 1 of the utility model;
[0015] Figure 2 is a schematic diagram of Embodiment 2 of the utility model;
[0016] Figure 3 is the utility model Figure 2 Enlarged view of part A in. Detailed Embodiment
[0017] Next, the technical solutions in the embodiments of the utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the utility model.
[0018] As Figure 1 shown, in Embodiment 1, a simple release valve pull rod includes a straight rod 1 and a first pull ring 2 and a second pull ring 3 fixedly arranged at both ends of the straight rod 1. Among them, both the first pull ring 2 and the second pull ring 3 include four sides. Two of the sides are parallel to the straight rod 1. The sides connected to the straight rod 1 are straight, the sides opposite to the straight rod 1 are outwardly arched arcs, and the length of the sides parallel to the straight rod 1 is greater than the length of the sides connected to the straight rod 1.
[0019] When performing the exhaust operation, the worker holds the second ring body, slips the first ring body onto the valve stem of the release valve, and then directly pulls the second ring body, thus realizing the exhaust operation of the release valve. Compared with the prior art that relies on workers to perform the exhaust operation by hand, it reduces the intensity of the exhaust operation, improves the processing efficiency for situations such as first- and second-level locking and incomplete door closing, and has higher safety at the same time.
[0020] Meanwhile, after the first pull ring 2 is slipped onto the valve stem of the release valve, by rotating, the longer side of the cavity of the first pull ring 2 can be made to be in a staggered state with the valve stem, which can prevent the first pull ring 2 from disengaging from the valve stem. In addition, when both the first pull ring 2 and the second pull ring 3 are directly welded and fixed at both ends of the straight rod 1, the first pull rod and the second pull rod can be used alternately, making the exhaust operation more convenient.
[0021] As Figure 2 and Figure 3 shown, in the second embodiment, the straight rod 1 includes a first rod body 1.1 and a second rod body 1.2. One end of the first rod body 1.1 is fixedly connected to the first pull ring 2, and one end of the straight rod 1 is fixedly connected to the second pull ring 3, and the first rod body 1.1 and the second rod body 1.2 are rotatably connected. With such a setting, by pulling the second ring body downward, the second rod body 1.2 directly applies a downward pulling force to the valve stem by pulling down the first rod body 1.1, making the exhaust operation more convenient. Specifically, a rotating shaft 4 is fixedly installed on the side surface of the first rod body 1.1, and the second rod body 1.2 is rotatably sleeved on the rotating shaft 4. [[ID=?]]
[0022] A strip-shaped groove 5 is formed on the second rod body 1.2, and the strip-shaped groove 5 is slidably sleeved on the rotating shaft 4. By providing the strip-shaped groove 5, when the second pull ring 3 is pulled downward, the end of the second rod body 1.2 facing the first rod body 1.1 will tilt upward and support on the bottom of the hopper car. In this way, using the lever principle, the effect of making the exhaust operation more convenient is achieved. [[ID=?]]
[0023] Corresponding to the upper and lower side surfaces of the strip-shaped groove 5 on the second rod body 1.2, pin holes 6 are equally spaced. A pin 7 is inserted into the pin holes 6. By inserting the pin 7 into the pin hole 6 on the side of the rotating shaft 4 facing the first pull ring 2, when the second pull ring 3 is pulled downward to make the second rod body 1.2 rotate, the pin 7 can block on the side of the rotating shaft 4 facing the first pull ring 2, preventing the second rod body 1.2 from displacing during the process of the second rod body 1.2 pressing down the first rod body 1.1 using the lever principle, and further ensuring that the exhaust operation can be carried out more quickly and effectively.
[0024] The pin 7 has a "C" - shaped structure, and the two ends of the pin 7 are used to be inserted into two adjacent pin holes 6 at the same time, and the distance between two adjacent pin holes 6 is greater than the outer diameter of the rotating shaft 4. With such a setting, the pin 7 can simultaneously limit both sides of the rotating shaft 4, so as to further improve the stability when the second rod body 1.2 presses down the first rod body 1.1 using the lever principle.
[0025] The second rod body 1.2 includes a first part 1.2.1, a second part 1.2.2 and a third part 1.2.3. The first part 1.2.1 is a rod-shaped structure, and one end of the first part 1.2.1 is fixed to the second pull ring 3. The second part 1.2.2 is a "C" - shaped structure, and the closed end of the second part 1.2.2 is fixedly connected to the other end of the first part 1.2.1. The third part 1.2.3 is a "C" - shaped structure, and the third part 1.2.3 is in a fixed state with an open end between it and the first part 1.2.1, and the end of the third part 1.2.3 away from the second part 1.2.2 is located outside the first rod body 1.1.
[0026] Through the setting of the second part 1.2.2, the overall stability of the first rod body 1.1 and the second rod body 1.2 is improved. At the same time, when a force is applied, the pressure of the second rod body 1.2 on the first rod body 1.1 is more balanced. Through the setting of the third part 1.2.3, when the end of the second rod body 1.2 close to the first rod body 1.1 tilts upwards, the third part 1.2.3 will support on the bottom of the hopper car, making the second rod body 1.2 more stably supported by the hopper car. At the same time, it prevents the second rod body 1.2 from tilting to one side, and can improve the stability.
[0027] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A simple relief valve pull rod, characterized in that: It includes a straight rod (1), a first pull ring (2) and a second pull ring (3) fixedly arranged at both ends of the straight rod (1). Among them, both the first pull ring (2) and the second pull ring (3) include four sides, two of which are parallel to the straight rod (1). The sides connected to the straight rod (1) are linear, the sides opposite to the straight rod (1) are outward-arching arcs, and the length of the sides parallel to the straight rod (1) is greater than the length of the sides connected to the straight rod (1).
2. A simple relief valve pull rod according to claim 1, characterized in that: The straight rod (1) includes a first rod body (1.1) and a second rod body (1.2). One end of the first rod body (1.1) is fixedly connected to the first pull ring (2), one end of the straight rod (1) is fixedly connected to the second pull ring (3), and the first rod body (1.1) and the second rod body (1.2) are rotatably connected.
3. A simple relief valve pull rod according to claim 2, characterized in that: A rotating shaft (4) is fixedly installed on the side surface of the first rod body (1.1), and the second rod body (1.2) is rotatably sleeved on the rotating shaft (4).
4. A simple relief valve pull rod according to claim 3, characterized in that: A strip-shaped groove (5) is formed on the second rod body (1.2), and the strip-shaped groove (5) is slidably sleeved on the rotating shaft (4).
5. The simple relief valve pull rod according to claim 4, characterized in that: Corresponding to the upper and lower side surfaces of the strip-shaped groove (5) on the second rod body (1.2), pin holes (6) are equidistantly arranged, and pins (7) are inserted into the pin holes (6).
6. The simple relief valve pull rod according to claim 5, characterized in that: The pin (7) has a "C" - shaped structure. The two ends of the pin (7) are used to be inserted into two adjacent pin holes (6) simultaneously, and the distance between two adjacent pin holes (6) is greater than the outer diameter of the rotating shaft (4).
7. The simple relief valve pull rod according to claim 3, characterized in that: The second rod body (1.2) includes a first part (1.2.1), a second part (1.2.2) and a third part (1.2.3). The first part (1.2.1) is a rod-shaped structure, and one end of the first part (1.2.1) is fixed to the second pull ring (3). The second part (1.2.2) has a "C" - shaped structure, and the closed end of the second part (1.2.2) is fixedly connected to the other end of the first part (1.2.1). The third part (1.2.3) has a "C" - shaped structure. The third part (1.2.3) and the first part (1.2.1) are in a fixed state with an open mouth, and the end of the third part (1.2.3) far from the second part (1.2.2) is located outside the first rod body (1.1).