CN211525525U

CN211525525U - Automatic closed dustproof plug for high-pressure brake hose connector of train

Info

Publication number: CN211525525U
Application number: CN202020087218.6U
Authority: CN
Inventors: 唐圣红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-09-18
Anticipated expiration: 2030-01-15

Abstract

The utility model provides an automatic closing dustproof plug for a high-pressure brake hose connector of a train, which consists of a hinge shaft fixed or installed on the brake hose connector and a swing arm with a shaft sleeve, wherein the hinge shaft and the shaft sleeve are matched with the axis in a hinge mode; the tail end of the swing arm is provided with a dustproof blocking cover acting on the brake hose connector, and the swing arm is further provided with a spring device. The hinge shaft is provided with a spiral step, and a guide pin is arranged in the corresponding shaft sleeve; a settling tank is arranged at the bottom end of the spiral step; the spring is fixed on the hinge shaft. The swing arm with the shaft sleeve can be disassembled and assembled by the arm support and the shaft sleeve. The utility model solves the problem of failure of the dustproof plug seal of the high-pressure brake hose connector of the train caused by manual operation, and realizes the automatic closing seal of the brake hose connector by adopting the automatic closing dustproof plug; at the same time, a solution suitable for retrofitting existing plants is proposed.

Description

Automatic closed dustproof plug for high-pressure brake hose connector of train

Technical Field

The utility model relates to a train equipment field, concretely relates to be used for automatic closed dustproof stifled on train high pressure brake hose connector.

Background

In the field of train equipment, a brake system is one of important parts for guaranteeing train safety, serves as a brake hose for transmitting train pipe pressure in the brake system, is continuously connected and communicated with a whole train through a brake hose pipeline between carriages, plays a role in transmitting brake pressure, and ensures normal braking and relieving of the train. If the train is not sealed in place when being disconnected and connected, foreign matters entering the brake hose can weaken the effective transmission of the train pressure, influence the braking action, even cause the brake failure and seriously influence the transportation safety of the train.

The dust plug is a part which is arranged on the high-pressure brake hose connector to seal the pipe orifice when the brake hose is not in a connection state, so that sundries are prevented from entering the brake hose to influence the transmission of the train pressure. The existing dustproof plug is an independent device similar to a wrench, is provided with a lock catch and a lock tongue similar to a brake hose connector, and is suspended at two ends of a train carriage and is separated from the brake hose connector at ordinary times; after the train carriage is detached and separated, the continuous high-pressure brake hose needs to be separated and disconnected, the dustproof plug needs to be detached at the moment, the dustproof plug is rotationally locked into the hose connector through manual operation, and the high-pressure gas butt joint port 11 is plugged. Due to the fact that the marshalling operation of the railway vehicles is multiple and the removal task is heavy, the practical problem is that operators often forget to block dust and blockage after the high-pressure hose connector is disconnected; moreover, as the dustproof plug is hung at other places independently, the dustproof plug is often lost; once the high-pressure gas is not closed and blocked on the interface 11, sundries enter a brake system and even small animals enter the brake system, and a brake pipeline is blocked when the brake system is used again, so that an accident is caused, and a serious result is generated. Therefore, the brake hose and the dust plug are optimized and improved, the automatic sealing and closing of the brake hose and the dust plug are realized, and the device has practical safety significance for railway safety. However, the existing dust block continues to be in the old form, and no new technical transformation plan is proposed at present.

Disclosure of Invention

The technical problem solved by the utility model is to reform the existing high-pressure brake hose connector, and by arranging the automatic closing dustproof plug 2 component (as shown in figure 1 and figure 2), the high-pressure gas butt joint port 11 (as shown in figure 4) on the sealed connector 1 can be automatically closed after the high-pressure brake hose pipeline is disconnected; the phenomenon that foreign matters fall into the interface 11 due to the fact that high-pressure gas is not sealed in a closed mode when the foreign matters are not installed or are not operated by people in a wrong mode is avoided.

The automatic closing function of the utility model is to plug the dustproof blocking cover 31 into the vent sealing washer 12 of the high-pressure gas butt joint port 11 accurately, and simultaneously, the dustproof blocking cover 31 can be removed when the brake hose connector is in butt joint interlocking, so that the locking of the brake hose connector is not interfered; the technical scheme proposed for realizing the function is as follows:

fig. 1 is a schematic view of an automatic closing dustproof plug 2 of the high-pressure brake hose connector of the train of the present invention; the brake hose connector is composed of a hinge shaft 5 to be fixed on the brake hose connector and a swing arm 3 with a shaft sleeve, wherein the hinge shaft 5 and the shaft sleeve are coaxially matched in a hinge mode; the swing arm end is provided with dustproof jam lid 31, the swing arm still is provided with spring 6.

The connector interlocking valve 10, the high-pressure gas butt joint port 11, the vent sealing washer 12, the brake hose hoop 13, the brake hose 14, the connector interlocking valve latch bolt 15 and the connector interlocking valve latch 16 are arranged on the original train high-pressure brake hose connector 1, and the connector interlocking valve connector has a flat mounting surface 18 suitable for the automatic closing dustproof and blocking mounting of the utility model; the brake hose connectors are connected by two identical connectors being snapped together so that their respective high pressure gas interfaces 11 are in abutment and locked by the snap-fit engagement of the interlock valve tongue 15 and interlock valve catch 16.

The hinge shaft 5 is not limited to the vertical position as shown in the drawings, and may be arranged horizontally or obliquely or even the swing arm itself capable of elastic deformation, which also belongs to the concept scope of the hinge shaft of the present invention.

The hinge shaft 5 needs to be installed on the original brake hose connector 1, and the installation comprises mechanical assembly such as threaded screw fixation and integrated connection such as welding and press riveting embedding; in order to facilitate installation, the original brake hose connector needs to be modified moderately, for example, a screw hole 19 (shown in fig. 4) or a mark welding positioning 17 (shown in fig. 3) is arranged at the position of a flat mounting surface 18, or an auxiliary tool clamp for machining is arranged, so that the modification category also belongs to the field of the previous modification; because a large number of existing brake hose connectors exist in the existing train, if the existing brake hose connectors are upgraded and modified, an auxiliary tool fixture can be preferentially considered to be arranged to position the hinge shaft 5 and then directly welded on the brake hose connectors in a welding mode, so that the modification can be completed on the site of the train without returning to the factory for maintenance; however, if new product replacement and maintenance are considered, and machining precision needs are considered, mechanical assembly such as threaded screw fixation (as in the embodiment described later) can be considered.

The swing arm 3 with the shaft sleeve is in a part form that the shaft sleeve and the arm support are integrated, and the form has a simple structure (as shown in fig. 3); however, the functional component may also be designed as an independent part of the shaft sleeve 4 and the arm support 30, and assembled into the form of the functional component through a mechanical assembly form (as shown in fig. 13, which is an embodiment described later), and the form of the independent part is convenient for production and processing; the functions of the integrated swing arm 3 with the shaft sleeve, the assembled shaft sleeve 4 and the assembled arm support 30 are the same, and the integrated swing arm with the shaft sleeve has advantages and disadvantages from the industrial production angle; for the sake of brevity, the swing arm is hereinafter referred to collectively.

The spring can be represented as a part with an elastic function, such as an extension spring, a compression spring, a torsion spring, an elastic rubber ring and the like; also covers the situation that the belt is an elastically deformable swing arm; the purpose of the spring is to rebound the moved swing arm to the position corresponding to the sealing of the dustproof blocking cover. The aforementioned resilient spring is arranged between the swing arm and the hinge shaft 5 and also between the swing arm and the brake hose connector 1, which is functionally equivalent since the hinge shaft 5 is fixed to the brake hose connector 1.

The upper end of the spring 6 needs to be fixed, the most direct fixing mode is that the tail end of the spring is directly fixed on the hinge shaft, for example, welding, the spring can be made into a reducing type at the moment, and the fixed end is attached to the hinge shaft 5 so as to be convenient for welding or bonding; however, for the requirements of process and assembly, it is conceivable to press the spring by welding or mounting the spring fixing piece 7; or may be secured to the hinge shaft by a spring-locking cap 70 with screws (as in the embodiments described below).

Above technical scheme has constituted the utility model discloses realize the basic structure of function, nevertheless for the ease of industrial manufacture realizes and more reliable function, refine technical scheme as follows:

as shown in fig. 3 and 7, the hinge shaft 5 is provided with a spiral step 53, and a guide pin 41 (shown in fig. 8) is arranged in a shaft sleeve of the corresponding swing arm 3 or in a shaft sleeve 4 of a separate part; the spiral step 53 is a continuous step which rises and is cut circularly along the surface of the hinge shaft, and the guide pin 41 can slide along the spiral step 53 in the process that the swing arm rotates along the hinge shaft 5, so that the swing arm is lifted or lowered; the spiral step 53 can also be replaced by a spiral groove, the principle and the function of the spiral step are identical, and the spiral step can be preferably adopted from the manufacturing process angle; conversely, the guide pin can be arranged on the hinge shaft, and the spiral rifling is arranged in the corresponding shaft sleeve, so that the rotary lifting purpose can be realized.

When the swing arm rotates and is lifted, the swing arm is pushed downwards when encountering the thrust action or reverse torsion of the spring 6, and the guide pin 41 also slides downwards along the spiral step 53, so that the belt swing arm rotates reversely; so that the swing arm automatically rotates backwards after being released.

Further, a settling tank 54 is arranged at the bottom end of the spiral step 53; under the action of the spring 6, the guide pin 41 slides through the spiral step 53 and then vertically falls into the settling tank 54, so that the swing arm also vertically falls for a certain distance, and the vertical falling action can plug the dustproof blocking cover 31 into the vent sealing gasket 12 of the high-pressure gas butt joint port 11 in the vertical direction to complete the automatic closing and sealing of the hose connector; if the situation that the spiral rifling is arranged in the shaft sleeve corresponds to the situation, the settling tank is arranged at the bottom end of the spiral rifling, and the two are the same.

For comfort of use, the ascending slope of the spiral step 53 can be set to be steep and gentle, the swing arm is rebounded slowly at first, and the rotating speed is gradually increased when the swing arm rotates to be close to the sealing positioning position; thus, the rebound delay can be provided for the buckling locking of the brake hose connector at first, and the acceleration can be provided for the closing of the dustproof blocking cover 31 at last, so that the operation is convenient; in addition, in order to obtain a longer time delay, a damping speed reducer can be added to the swing arm, for example, a soft rubber gasket is arranged between the hinge shaft 5 and the corresponding shaft sleeve.

The above technical solution is also a situation that the ascending gradient of the spiral step 53 is zero, that is, the spiral step is replaced by a horizontal step, because the horizontal step is a spiral step with a zero ascending gradient, which is understood from the geometry, and is expressed as such for the unified technical solution principle. At the moment, in order to enable the swing arm to rebound and sink, the lower end of the spring 6 needs to be fixedly connected to the swing arm 3 with the shaft sleeve or the shaft sleeve 4, and meanwhile, the upper end of the spring 6 also needs to be in a fixed state, namely, two ends of the spring are fixed and do not move; at this time, the spring 6 is both a thrust spring and a torsion spring; in the process of rotating and opening the swing arm or the arm support, the spring is compressed and simultaneously screwed so as to generate reverse torque; when the swing arm or the arm support is released, the reverse torque provides power for the swing arm or the arm support to automatically rotate back in a reverse direction, and the thrust of the spring provides the thrust for the guide pin 41 to vertically fall into the settling tank 54, so that the functions are realized; and the technical scheme of the situation has lower manufacturing cost because the spiral steps do not need to be processed.

In addition, the idea of expanding is that in order to make the closing seal of the brake hose connector have clear feedback, a tuning fork can be arranged at a proper position of the brake hose connector, and a hammer or a striking position is arranged on the corresponding swing arm, so that when the brake hose connector is reset and closed on the swing arm, a certain knocking prompt sound can be sent out to clear feedback, and therefore when the feedback sound is not received, whether the brake hose connector is in a closed state or not needs to be checked; of course, the tuning fork can be replaced by a sound producing device triggered by a bell and the like, and the tuning fork is only suitable for the rough style and the harsh use environment of the brake hose connector.

When two brake hoses are required to be connected, the swing arm of the high-pressure brake hose connector, which is automatically closed and dustproof, is lifted up first, so that the dustproof blocking cover 31 is vertically and upwards moved out of the vent sealing washer 12 of the high-pressure gas butt joint port 11, and then the swing arm is rotated to the outer side for a certain angle; then the connector ports of the two sections of high-pressure brake hoses are interlocked in place, so that the purpose of splicing the high-pressure brake hoses is achieved; at the moment, after the swing arm rotates to the outer side, due to the slowing effect of the damping speed reducer, the swing arm can slowly rotate and swing back, the interlocking of the connectors of the hoses can be completed in the time interval, the phenomenon that the connectors of the other hoses are rebounded to influence interference operation is avoided, and due to the fact that the connector of the other hose is added with the interlocking, the swing arm stops swinging back after swinging back and touching the connector of the other hose, and the position state is kept.

When the separation is picked off to the train carriage, need break off high pressure brake hose in advance, at this moment, with two brake pipe connector unblocks of lock interlocking, the unblock back, because the guide of spiral step (53), the swing arm is with higher speed under the effect of spring and is swung back for dustproof jam lid 31 is located the high-pressure gas and to interface 11 top, and later and because the direction of subsider 54, the swing arm will be vertical sinking under the spring action, fill in dustproof jam lid 31 in the blow vent seal ring 12 of high-pressure gas and to interface 11, accomplish the automatic closed of hose connector and seal.

The utility model has the advantages that the problem of high dust-proof sealing failure of the train high-pressure brake hose connector caused by manual operation is solved, and the automatic closing dust-proof sealing of the brake hose connector is realized by adopting the automatic closing dust-proof plug; the solution that is suitable for the swift low-cost of reforming transform existing equipment is proposed simultaneously, does the utility model discloses an industrial manufacturing and popularization have proposed the solution.

Drawings

FIG. 1 is a schematic view of the automatic closing dustproof plug assembly of the high-pressure brake hose connector of the train of the present invention;

FIG. 2 is a schematic view showing the state of the automatic closing dust plug of the present invention mounted on the brake hose connector;

FIG. 3 is an exploded view of the automatic closing dust plug of the present invention;

fig. 4 is a schematic diagram of technical modification of the brake hose connector according to the embodiment of the present invention;

fig. 5 is a schematic view of an automatic closing dustproof plug assembly according to an embodiment of the present invention;

fig. 6 is a schematic view of the automatic closing dustproof plug assembly installed on the brake hose connector according to the embodiment of the present invention;

fig. 7 is a schematic view of a hinge shaft structure according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of the shaft sleeve 4 according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a spring locking cover 70 according to an embodiment of the present invention;

fig. 10 is a schematic view of an assembled state of the hinge shaft and the spring locking cover 70 according to an embodiment of the present invention;

fig. 11 is a schematic diagram of the assembled state of the hinge shaft, the shaft sleeve 4, the spring 6 and the spring locking cover 70 according to the embodiment of the present invention;

fig. 12 is a schematic structural view of a swing arm support 30 according to an embodiment of the present invention;

fig. 13 is a schematic view of a state that the boom 30 and the shaft sleeve 4 are assembled to form a swing arm according to the embodiment of the present invention;

fig. 14 is a schematic view of the swing arm rotated open state after the automatic closing anti-dust block assembly according to the embodiment of the present invention is mounted on the brake hose connector;

fig. 15 is a schematic view of the state of the brake hose connector with the automatic closing dust plug according to the embodiment of the present invention when the brake hose connector is interlocked.

Wherein: the high-pressure brake hose connector of the train is a whole 1; a connector interlock valve 10; high pressure gas interface 11; a vent sealing gasket 12; a brake hose band 13; a brake hose 14; a connector interlock valve latch 15; a connector interlock valve latch 16; the utility model discloses automatic closed dustproof stifled installation location 17; the utility model discloses an automatic closed dustproof blocking flat mounting surface 18; the embodiment automatically closes the dustproof plug mounting screw hole 19; the utility model discloses an automatic closing dustproof blocking integral component 2; a swing arm 3 with a shaft sleeve; the arm support 30 of the embodiment; a dust-proof blocking cover 31; example fixed ring 32 on arm support; a stationary ring inner annular surface 33; a fixing pin 34; example shaft sleeve 4; a guide pin 41; shaft hole 42 on the embodiment shaft sleeve; an inner annular surface 43 of the shaft sleeve; a hinge shaft 5; a hinge shaft inner shaft surface 50; a hinge shaft outer shaft surface 51; embodiment hinge shaft mounting studs 52; a spiral step 53; a settling tank 54; embodiment spring locking cover mounting screw holes 55; a spring 6; a spring fixing piece 7; embodiment spring locking cover 70; embodiment spring locking cover studs 71; example spring locking screws 72; a train-dedicated triangular key hole 73.

Detailed Description

Fig. 4 to 14 illustrate a specific application of the present invention; hinge shaft mounting screw holes 19 are first provided at the flat mounting face 18 of the brake hose connector interlock valve 10 (as shown in fig. 4), corresponding to the mounting studs 52 provided at the bottom end of the hinge shaft (as shown in fig. 7). The hinge shaft is provided with a spiral step 53 with steep ascending gradient and gradual ascending gradient, and the bottom end of the spiral step 53 is provided with a settling tank 54 (shown in figure 7); a guide pin 41 (shown in fig. 8) is arranged in the corresponding shaft sleeve 4; the spiral step 53 divides the hinge axis into an inner axial surface 50 and an outer axial surface 51; a shaft hole 42 and an inner ring surface 43 are arranged corresponding to the shaft sleeve 4; the inner axial surface 50 and the shaft hole 42 are coaxially matched in a hinge mode, the outer axial surface 51 and the inner annular surface 43 are coaxially matched in a hinge mode, or at least one group of the outer axial surface and the inner annular surface is coaxially matched in a hinge mode, and a process gap is arranged (as shown in fig. 7 and 8); the top of the hinge shaft is also provided with a spring locking cover mounting screw hole 55 (shown in fig. 7), and a spring locking screw 72 (shown in fig. 9) is arranged on the corresponding spring locking cover 70; the inner shaft surface 50 is sleeved in the spring 6, a stud 71 part of the spring locking cover also penetrates through the spring 6 and is fixed on the hinge shaft through a spring locking screw 72, and a special triangle key hole 73 for the train is arranged at the top of the spring locking cover 70 for dismounting (as shown in fig. 11). The shaft sleeve 4 is fitted into an inner ring surface 33 of the fixing ring 32, and is fixed to the swing arm 30 by a fastening pin 34, and the other end of the swing arm 30 is provided with a dust-proof cap 31 (see fig. 12 and 13).

The installation of the hinge shaft and the brake hose connector can be the pre-installation of a single part, or the installation of the whole assembly can be carried out through the installation stud 52 after the automatic closing dustproof plug assembly is integrally assembled (as shown in fig. 5 and 6).

Claims

1. An automatic closing dustproof plug of a high-pressure brake hose connector of a train consists of a hinge shaft fixed on the brake hose connector and a swing arm with a shaft sleeve, wherein the hinge shaft and the shaft sleeve are coaxially matched in a hinge mode; the swing arm end is provided with dustproof jam cover (31), the swing arm still is provided with resilient mounting.

2. The automatic closing dust plug of a high-pressure brake hose connector of a train as claimed in claim 1, wherein the hinge shaft is provided with a spiral step (53) or a spiral groove, and a guide pin (41) is arranged in a corresponding shaft sleeve; or is as follows: the hinge shaft is provided with a guide pin, and a spiral rifling is arranged in the corresponding shaft sleeve.

3. The automatic closing dust plug of a high-pressure brake hose connector of a train as claimed in claim 2, wherein a settling tank (54) is provided at the bottom end of the spiral step (53); or the tail end of the spiral rifling is provided with a settling tank.

4. The automatic closing dust plug of a high-pressure brake hose connector of a train according to claim 2 or 3, characterized in that the ascending slope of the spiral step (53) is gradually reduced from steep.

5. The automatic closing dust plug for a high-pressure brake hose connector of a train as claimed in claim 3, wherein the ascending slope of the spiral step (53) is zero, i.e. the spiral step (53) is replaced by a horizontal step.

6. The automatic closing dust plug of a high-pressure brake hose connector of a train according to claim 2 or 3, wherein the spiral step (53) divides a hinge shaft into an inner axial surface (50) and an outer axial surface (51); the shaft sleeve is provided with a shaft hole (42) and an inner ring surface (43) correspondingly, the inner shaft surface (50) and the shaft hole (42) are coaxially matched in a hinge mode, and the outer shaft surface (51) and the inner ring surface (43) are coaxially matched in the hinge mode.

7. The train high pressure brake hose connector auto-closing anti-dust plug according to claim 1 or 2 or 3, characterized in that the resilient means is a spring locked on a hinge shaft by a spring retainer (7) or a spring locking cap (70); or is as follows: the top end of the spring is directly fixed on the hinge shaft.

8. The automatic closing dustproof plug of the high-pressure brake hose connector of the train as claimed in claim 1, 2 or 3 is characterized in that the swing arm with the shaft sleeve is detachably assembled by a boom (30) and a shaft sleeve (4), and the boom (30) is provided with a fixing ring (32) and a fixing pin (34) of the shaft sleeve (4).

9. The train high pressure brake hose connector auto-closing anti-dust plug of claim 1 or 2 or 3, characterized in that the hinge shaft is provided with a welding location or mounting stud (52); welding positioning (17) or mounting screw holes (19) are arranged on the corresponding brake hose connector.

10. The automatic closing dust plug for a high pressure brake hose connector of a train as claimed in claim 1, 2 or 3, wherein the swing arm is provided with a damping deceleration device.