Pin type exhaust valve

Abstract

The utility model belongs to the technical field of self-dumping car braking, and particularly relates to a pin type exhaust valve which is characterized by comprising a valve casing, a lock cap, a connecting seat, an ejector rod, a sealing rod, a safety pin and a spring, the top of the valve casing is connected with the lock cap, a pin penetrating hole is formed in the lock cap, the bottom of the valve casing is connected with the connecting seat, and the sealing rod is arranged in the valve casing. An ejector rod is arranged above the sealing rod, and a safety pin penetrates through the lock cap and the ejector rod; a spring is arranged between the sealing rod and the valve shell; a sealing ring is arranged between the bottom of the sealing rod and the connecting seat; the bottom of the connecting seat is connected with a main air supply pipeline of a self-dumping car brake system; and the valve shell is provided with an exhaust port. Compared with the prior art, the automatic braking device has the advantages that during derailment, the pin type exhaust valve acts through the relative displacement between the axle and the carriage, and a braking system is triggered to achieve automatic braking; the reliability of safe operation is improved, and the response speed to derailment faults is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of self-tipping car brake, especially relates to a pin type exhaust valve. BACKGROUND

[0002] The previous self-tipping car can only realize brake after manual exhaust when derailing, which can not find the derailment in the first time, and the consequence is that the derailed locomotive wheel cuts the tie for a long time, and the long-distance damage to the tie and the roadbed causes great loss to the production and maintenance.

[0003] The utility model discloses a kind of derailing alarm devices of rail vehicle with brake, including air storage cylinder, derailing brake valve, adjusting lever, pull ring, air storage cylinder is the air supply for derailing brake valve, derailing brake valve is connected with adjusting lever, adjusting lever is fixedly connected with pull ring, axle is arranged in pull ring, further include loudspeaker, air pipe, the air exhaust hole of derailing brake valve is connected with air pipe one end, air pipe other end is connected with loudspeaker.The advantages are: simple structure, easy to implement, utilize the air exhaust hole of derailing brake valve to provide air sound for loudspeaker, it is convenient to transform, when mine car derailed, axle pulls down pull ring, linkage adjusting lever, make air exhaust hole pass compressed air to make loudspeaker sound, realize the purpose of timely alarm, vehicle driver can take locomotive emergency brake measure in the first time, reduce accident loss.This scheme still needs staff to participate to a great extent, and fault response speed is too low. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of pin type exhaust valve, overcome the deficiency of prior art, pin type exhaust valve is matched with self-tipping car brake system, when locomotive derails, utilize the relative displacement between axle and car body to make pin type exhaust valve act, trigger brake system to realize automatic brake, and promptly respond to derailment fault.

[0005] To achieve the above object, the utility model realizes by following technical scheme:

[0006] A kind of pin type exhaust valve, including valve shell, lock cap, connecting seat, jacking rod, sealing rod, safety pin and spring, the top of valve shell is connected with lock cap, lock cap is equipped with wear pin hole, the bottom of valve shell is connected with connecting seat, sealing rod is equipped in valve shell, sealing rod top is equipped with jacking rod, jacking rod is equipped with pin hole, safety pin is set through lock cap and jacking rod;Spring is arranged between sealing rod and valve shell, sealing ring is arranged between the bottom of sealing rod and connecting seat;The bottom of connecting seat is equipped with air inlet and is connected with the main gas supply pipeline of self-tipping car brake system;Valve shell is equipped with exhaust port, and exhaust port is correspondingly arranged in spring interval.

[0007] Further, the valve shell and the lock cap are connected by threads.

[0008] Further, the bottom of the ejector rod is provided with a limiting boss in the circumferential direction.

[0009] Further, the tail of the safety pin is provided with an opening, and a breaking pin is arranged in the opening.

[0010] Further, the sealing ring is a rubber sealing ring with a circular, square or rectangular cross section.

[0011] Further, the pin hole is arranged on the pin seat of the top protrusion of the lock cap.

[0012] Further, the inner diameter of the exhaust port is not less than the inner diameter of the main air supply pipeline.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1) The pin type exhaust valve is matched with the self-tipping brake braking system, so that when the locomotive derails, the relative displacement between the axle and the car body makes the pin type exhaust valve act, and triggers the braking system to realize automatic braking.

[0015] 2) The pin type exhaust valve can automatically react after derailing and brake in the first time, greatly reduces the damage to the locomotive wheel pair, the sleeper and the roadbed, improves the reliability of safe operation, and improves the reaction speed to the derailment fault. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic diagram of an embodiment of the utility model;

[0017] Fig. 2 is a schematic diagram of the use state of an embodiment of the utility model.

[0018] In the figure: 1-valve shell, 2-lock cap, 3-connection seat, 4-ejector rod, 5-sealing rod, 6-safety pin, 7-spring, 8-sealing ring, 9-main air supply pipeline, 10-exhaust port, 11-limiting boss, 12-breaking pin, 13-pin seat, 14-locomotive car body cross beam, 15-locomotive trailer main shaft, 16-pin type exhaust valve, 17-air inlet, 18-hanging bracket. DETAILED DESCRIPTION

[0019] The technical solutions of the utility model will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, specific examples required to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the specific examples described in the following description are some embodiments of the present application, and other embodiments can also be obtained by those skilled in the art without creative labor on the basis of these specific examples.

[0021] The components of the embodiments of the present application described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the specific embodiments is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0022] The following examples use the tailings after two water selections from the Chengxiang No. 1 Mine of Liaoning Xida Talc Group Co., Ltd.

[0023] See Figs. 1-2 It is a structure schematic diagram of a pin type exhaust valve embodiment of the present application, comprising a valve shell 1, a lock cap 2, a connecting seat 3, a top rod 4, a sealing rod 5, a safety pin 6 and a spring 7, the top of the valve shell 1 is connected with the lock cap 2, the lock cap 2 is provided with a through pin hole, the through pin hole is arranged on the pin seat 13 protruding on the top of the lock cap 2, facilitating installation. The bottom of the valve shell 1 is connected with the connecting seat 3, the valve shell 1 is provided with the sealing rod 5, the top of the sealing rod 5 is provided with the top rod 4, the top rod 4 is provided with a pin hole, the safety pin 6 penetrates the lock cap 2 and the top rod 4; the spring 7 is arranged between the sealing rod 5 and the valve shell 1, the sealing ring 8 is arranged between the bottom of the sealing rod 5 and the connecting seat 3; the bottom of the connecting seat 3 is provided with an air inlet 17 connected with the main air supply pipeline 9 of the self-turning brake braking system; the valve shell 1 is provided with an exhaust port 10, the exhaust port 10 is correspondingly arranged in the interval of the spring 7. The valve shell 1 and the lock cap 2 are connected through threads, facilitating repeated installation and use.

[0024] The bottom of the top rod 4 is provided with a limiting boss 11 in the circumferential direction, limiting the maximum position of the upward movement of the top rod. The tail of the safety pin 6 is provided with an opening, the opening is provided with a breaking pin 12, the breaking pin 12 is broken under tension, the safety pin 6 is pulled out, and the device is triggered. The sealing ring 8 is any one of a rubber sealing ring with a circular, square or rectangular cross section. The inner diameter of the exhaust port 10 is not less than the inner diameter of the main air supply pipeline 9, which can realize the rapid release of the pressure in the main air supply pipeline 9, and the brake rapid response.

[0025] The utility model embodiment uses, install the assembled pin type exhaust valve 16 on the locomotive car body crossbeam 14, connect the hanger 18 with the safety pin 6, and the locomotive trailer main shaft 15 is hung on the hanger 18. The connecting seat 3 bottom is equipped with the air inlet and is connected with the main gas supply pipeline 9 of the self-tipping brake braking system, the gas in the main gas supply pipeline 9 is sealed by the sealing rod 5, the main pipeline pressure is invariable, keeps normal operation state. When the locomotive derails, the locomotive trailer main shaft 15 and the locomotive car body will appear certain relative displacement, then the locomotive trailer main shaft 15 drives the safety pin 6 to separate from the jacking rod 4, the sealing rod 5 is moved up under the push of the spring 7, the air inlet 17 opens, so the gas in the main gas supply pipeline 9 will be discharged through the air inlet 17 and the exhaust port 10, the gas pressure in the main gas supply pipeline 9 drops, thereby playing the brake braking effect in the first time when the locomotive derails.

[0026] The utility model pin type exhaust valve can be repeatedly used, and after the sealing rod action, can be repeatedly used through again installation, insert the safety pin 6 into the pin hole on the jacking rod 4, and the pre-compression value of spring 7 can be adjusted by adjusting the thread between the lock cap 2 and the valve shell 1.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pin exhaust valve characterized by, The utility model relates to a valve for self -turning vehicle brake system, including valve shell, lock cap, connecting seat, jacks, sealing rod, safety pin and spring, the top of valve shell is connected with lock cap, is equipped with the hole of passing through pin on lock cap, the bottom of valve shell is connected with connecting seat, is equipped with sealing rod in valve shell, is equipped with jacks on sealing rod top, is equipped with pin hole on jacks, safety pin passes through lock cap and jacks and is equipped with spring between sealing rod and valve shell, is equipped with sealing ring between sealing rod bottom and connecting seat, the bottom of connecting seat is equipped with air inlet and is connected with the main gas supply pipeline of self -turning vehicle brake system, is equipped with exhaust port on valve shell, and exhaust port is set up in spring interval.

2. A pin exhaust valve according to claim 1, wherein The valve shell and the lock cap are connected by threads.

3. A pin exhaust valve according to claim 1, wherein The bottom of the jacks is provided with a limiting boss around the circumference.

4. A pin exhaust valve according to claim 1, wherein The tail of the safety pin is provided with an opening, and a breaking pin is arranged in the opening.

5. A pin exhaust valve according to claim 1 wherein, The sealing ring is a rubber sealing ring with a circular, square or rectangular cross section.

6. A pin exhaust valve according to claim 1, wherein The pin hole is arranged on the pin seat of the top protrusion of the lock cap.

7. A pin exhaust valve according to claim 1 wherein, The inner diameter of the exhaust port is not less than the inner diameter of the main gas supply pipeline.

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