CN-121757207-B - Sand mouth structure is annotated to high-speed railway

CN121757207BCN 121757207 BCN121757207 BCN 121757207BCN-121757207-B

Abstract

The invention relates to the technical field of high-speed rail sand injection, in particular to a high-speed rail sand injection port structure which comprises a surrounding baffle, an outer sealing unit, an inner sealing unit, a matching component, a sealing plate III and a locking component. When sand is not injected, the inner seal is formed through the second sealing plate, when the sand injection pipe is inserted, the outer seal is formed through the sand injection pipe and the first sealing plate, and when sand is injected, the inner seal is formed through the three sealing plates, so that the sand box is always sealed from an external space in a separation mode under the whole sand injection process and the normal running state of high-speed rails, the dryness of sand in the sand box is ensured to meet the use requirement, and in the sand injection operation process, only the sand injection pipe is manually inserted to be matched with small-amplitude rotary locking, and the matched assembly is used for guiding movement in the insertion pipe process, so that the operation steps are concise and easy to operate, and the efficiency of repeated operation for many times is improved.

Inventors

WANG QINGSONG
WANG GUOSONG
REN YONG

Assignees

长春冠信瑞达轨道客车配件有限公司

Dates

Publication Date: 20260512
Application Date: 20260303

Claims (5)

1. The utility model provides a high-speed railway annotates sand mouth structure, uses with notes sand pipe and sand box cooperation, its characterized in that includes: The sand box is characterized in that a through pipe with an axis extending forwards and backwards and communicated with the inner cavity of the sand box is arranged at the upper end of the sand box, a rectangular enclosing baffle is fixedly arranged at the front side of the sand box, an outer sealing unit is arranged on the enclosing baffle, an inner sealing unit is arranged on the through pipe, and a matching assembly is arranged on the sand injection pipe; The outer sealing unit comprises a first sealing plate, two sealing plates sliding up and down are arranged at the front side opening of the enclosing shield, the inner sealing unit comprises a second sealing plate, semicircular second sealing plates are hinged to the left side and the right side of the through pipe opening, and when sand injection is not carried out, the left sealing plate and the right sealing plate are folded to seal the through pipe opening; A sealing plate III for sealing the through pipe in the sand injection process is movably sleeved on the sand injection pipe, a compression spring is arranged on the sealing plate III and the front section part of the sand injection pipe together, a locking assembly is arranged between the sand injection pipe and the through pipe together, and the sand injection pipe is locked by the locking assembly through rotation after the sand injection pipe is inserted; When sand is injected, the sealing plate I and the inserted sand injection pipe form external sealing protection for the enclosing shield, and the inner sealing protection is carried out on the opening of the through pipe through the sealing plate III, and the through pipe is sealed in the whole sand injection process; The matching component comprises a mounting frame, the mounting frame is sleeved on the sand injection pipe, two guide rods which are symmetrically distributed in a front-back sliding manner and extend in a front-back manner are arranged on the mounting frame, guide blocks are fixedly arranged on the left end face and the right end face of the inside of the enclosing shield, and guide grooves are formed in the guide blocks in a front-back penetrating manner; The inner sealing unit further comprises a moving block, the through pipe is provided with a moving block corresponding to the second sealing plate in a front-back sliding manner through a mounting rod, a reset spring is arranged between the moving block and the rear end of the mounting rod, one side, away from the through pipe, of the moving block is hinged with the corresponding second sealing plate, and a limiting block corresponding to the moving block is fixedly arranged on the through pipe; the front end face of the moving block is provided with a butt joint groove for butt joint with the guide rod, a pressing spring is arranged between the mounting frame and the front end of the guide rod, and the elastic coefficient of the pressing spring is larger than that of the reset spring.
2. The sand injecting port structure of high-speed rail of claim 1, wherein the outer sealing unit further comprises a folding plate, the folding plate is arranged between the first sealing plate and the enclosing shield, the mounting block is fixedly arranged on the rear side of the first sealing plate, the electric sliding blocks are arranged on the upper end face and the lower end face of the inside of the enclosing shield in a sliding manner, and the electric sliding blocks are hinged with the adjacent mounting blocks through connecting bars.
3. The sand injecting port structure of claim 2, wherein the two mounting blocks are fixedly provided with transmitters on opposite surfaces thereof, the sand injecting pipe is provided with receivers on upper and lower sides thereof, and the two receivers are positioned on front and rear sides of the sealing plate III.
4. The sand injection port structure of high-speed rail of claim 1, wherein the adjacent sides of the first sealing plates are respectively provided with a semicircular groove in a front-back penetrating way, and the two semicircular grooves form a circular groove with the same diameter as the sand injection pipe after the first sealing plates are folded; the inner cambered surface of the semicircular groove at the front side and the rear side of the sand injection pipe are subjected to chamfering treatment.
5. The high-speed rail sand injection port structure of claim 1, wherein the locking assembly comprises a locking groove, a plurality of locking grooves which are distributed circumferentially and are L-shaped are formed in the inner wall of the through pipe, and the front end opening of the longitudinal section of the locking groove is subjected to chamfering treatment; the sand injection pipe is fixedly provided with a butt joint block matched with the locking groove, and the butt joint block enters the transverse section of the locking groove to finish the locking action of the sand injection pipe by rotating the sand injection pipe.

Description

Sand mouth structure is annotated to high-speed railway Technical Field The invention relates to the technical field of high-speed rail sand injection, in particular to a high-speed rail sand injection port structure. Background The sand spraying system sprays sand on the steel rail during the running of the high-speed rail so as to increase the adhesive force of the wheel rail in rainy and snowy weather, prevent idle slip and shorten the braking distance, and the sand injection port of the high-speed rail is a part of the sand spraying system and is used for supplementing quartz sand to a sand box in the sand spraying system mainly. The present sand injection port is usually arranged at the downside position of a carriage, and a plurality of sand scattering systems are usually arranged in the same train, so that the repeated filling process is needed when the sand and stones are filled in the same train, the conventional sand injection port through groove is of a circular structure, the opening is sealed with a sealing cap in a mechanical locking mode, in the use process, firstly, the sealing state of the sand injection port is manually released, a sand injection pipe is moved, the sand injection pipe is inserted into the sand injection port for sand injection, and the sand injection pipe is manually moved out after the sand injection is completed, and the sealing state of the sand injection port is recovered. The sand filling device aims at solving the problems that 1, after the sealing of the sand filling port is released, a sand filling pipe is manually required to be moved and inserted, the sand filling port is in an open state for a long time, and secondly, when sand filling operation is carried out, the gap between the sand filling port and the sand filling pipe is large, which is equivalent to the fact that the sand filling port is in an open state in sand filling time, so that in wet weather such as rain and snow, the sand box is in a communicating state with the outside for a long time along with the gradual progress of the whole sand filling process, and the dryness of sand stones in the sand box can be influenced, and the anti-skid effect after final sand spraying is influenced. 2. The current operation steps of carrying out sand injection need the manual work to remove the closed state of sand injection mouth at first, follow-up needs the manual work to carry out accurate intubate according to the position of sand injection mouth, need the manual work to shift out the sand injection pipe and resume the closed state of sand injection mouth after accomplishing the sand injection at last, and secondly in same train because of a plurality of sand injection mouths all need carry out the sand injection, consequently need repeat many times above-mentioned operation processes, whole operation step is loaded down with trivial details, the operating efficiency is low. Disclosure of Invention Based on this, it is necessary to provide a sand injection port structure for high-speed rail, which aims to solve the problems in the prior art. The application provides a sand injection port structure of a high-speed rail, which is matched with a sand injection pipe and a sand box for use, and comprises the following components: the sand box upper end is provided with the siphunculus that the axis extends around and with its inner chamber intercommunication, and the front side of sand box is fixed to be provided with the enclosing of rectangle and keeps off, is provided with outer closed cell on the enclosing, is provided with interior closed cell on the siphunculus, is provided with the cooperation subassembly on the notes sand pipe. The outer sealing unit comprises a first sealing plate, two sealing plates sliding up and down are arranged at the front opening of the enclosing shield, the inner sealing unit comprises a second sealing plate, semicircular second sealing plates are hinged to the left side and the right side of the through pipe opening, and when sand injection is not carried out, the left sealing plate and the right sealing plate are folded to seal the through pipe opening. The sand injection pipe is movably sleeved with a third sealing plate used for sealing the through pipe in the sand injection process, the third sealing plate and the front section part of the sand injection pipe are jointly provided with a compression spring, a locking assembly is jointly arranged between the sand injection pipe and the through pipe, and the sand injection pipe is locked by the locking assembly through rotation after the sand injection pipe is inserted. According to an advantageous embodiment, the outer closing unit further comprises a folding plate, the folding plate is jointly arranged between the first closing plate and the enclosing shield, the mounting block is fixedly arranged on the rear side of the first closing plate, the electric sliding blocks are arranged on the upper end face and the lower end face of