CN114506360B - Rail transit vehicle retarding device - Google Patents

Abstract

The invention discloses a rail transit vehicle traction and buffering device which comprises a fixed part and a movable part, wherein a fixed hook groove plate is arranged in the middle of an inner cavity of the fixed part, a movable hook body is arranged in the movable part, the movable hook body is embedded in the fixed hook groove plate for positioning, a stroke control assembly is arranged in the fixed part, the stroke control assembly comprises a stroke part of the inner cavity of the fixed part, which corresponds to the movable hook body, and a cylinder arranged at the top of the inner cavity of the fixed part, the stroke part controls the cylinder to operate through a control module, when the movable part of a carriage on one side is connected with the fixed part of a carriage on the other side, the movable hook body acts on the stroke part of the stroke control assembly, and the stroke part starts the cylinder to act and controls the movable hook body to be matched and positioned with the fixed hook groove plate. The movable hook body and the fixed hook groove plate can be independently selected to be in proper shapes, sizes and strengths, and the adaptability to various vehicle types of rail transit is good.

Description

Rail transit vehicle retarding device

Technical Field

The invention relates to the technical field of rail transit traction equipment, in particular to a rail transit vehicle traction and buffering device.

Background

The rail transit vehicle has the characteristics of safety, comfort, rapidness, environmental protection, large transportation capacity and low energy consumption, and becomes an important component of public transportation. Railway vehicles are often connected at a junction by a coupler, which is one of the most basic and important parts of the vehicle, and is used to connect the cars so that the vehicle forms a whole. The coupler buffer device is a vehicle part used for coupling a vehicle and a vehicle, a locomotive or a bullet train to transfer traction force, braking force and alleviate longitudinal impact force. The car coupler, the buffer, the coupler yoke and the slave plate form a whole, and the whole is arranged in a traction beam at the end of a car bottom frame.

When the conventional rail transit vehicle retarding device is connected with a carriage, manual calibration is often needed by utilizing a jean type coupler for connection, time and labor are wasted, safety accidents are easily caused, the conventional automatic coupler is relatively fixed in style, the manufacturing cost is relatively high, and the device is generally only suitable for specific rail transit vehicles, so that the universality is relatively poor.

Disclosure of Invention

The invention aims to solve the technical defects and provides a rail transit vehicle retarding device.

The invention designs a rail transit vehicle traction and buffering device, which comprises a fixed part and a movable part, wherein the fixed part and the movable part are respectively arranged on two adjacent carriages of a vehicle;

the stroke control assembly is arranged in the fixing part and comprises a stroke part of the inner cavity of the fixing part, which corresponds to the movable hook body, and a cylinder arranged at the top of the inner cavity of the fixing part, the stroke part controls the operation of the cylinder through the control module, when the movable part of the carriage at one side is connected with the fixing part of the carriage at the other side, the movable hook body acts on the stroke part of the stroke control assembly, the stroke part starts the action of the cylinder and controls the movable hook body to be matched and positioned with the fixed hook groove plate, and meanwhile, the cylinder is self-locked to keep the movable hook body to be fixedly matched and positioned on the fixed hook groove plate;

the stroke part comprises a control switch, a guide rod, a control block and a second spring, the guide rod is a retractable rod body, the second spring is arranged outside the guide rod and connected to the control block, the movable hook body acts on the control block to compress the guide rod and the second spring when the fixed part is connected with the movable part, and the guide rod acts on the control switch to further control the cylinder;

the movable part comprises a movable part inner cavity, a movable part mounting block is arranged in the movable part inner cavity, the movable hook body and the movable part inner cavity are elastically mounted, a limiting part is arranged at the bottom of the movable hook body, and the movable hook body is limited and mounted on the movable part mounting block through the limiting part.

Furthermore, a guide plate is arranged in an inner cavity of the fixing portion, a guide inclined plane is arranged on the bottom surface of one side, close to the movable hook body, of the guide plate, a horizontal extending portion is arranged on the guide plate along the tail end of the guide inclined plane, and the guide plate is fixedly installed in the fixing portion or is installed through an air cylinder with a control module.

Further, the fixed part inner wall is provided with the dashpot of installation stroke control subassembly, and two dashpots that correspond set up to a set of, and the control block both ends all are provided with protruding spacing in the dashpot that corresponds.

Furthermore, the fixed part, the movable part, the fixed part and the inner assembly of the movable part are arranged in an up-and-down symmetrical manner.

Furthermore, a plurality of coupler knuckle positioning grooves are formed in the upper side and the lower side of the fixed hook groove plate, two movable hook bodies which are symmetrical up and down are provided with coupler knuckles corresponding to the coupler knuckle positioning grooves, and guide protrusions are arranged at the bottoms of the coupler knuckles.

Furthermore, the part that the activity coupler body is located the inside of movable part is provided with the stopper, and it has the spacing groove to open on the movable part installation piece, and the stopper is including the horizontal pole and the montant that meet, and the spacing groove is character cut in bas-relief shape and spacing groove outer end opening part and cooperates in the montant part of stopper.

Furthermore, a telescopic rod is installed on the movable hook body and connected with the inner wall of the inner cavity of the movable part, and a first spring is arranged outside the telescopic rod.

Furthermore, the end part of the telescopic rod is provided with a sliding component, a movable groove is arranged in the inner cavity of the movable part, the sliding component limits the position and horizontally slides in the movable groove,

further, connect fly leaf and telescopic link, the fly leaf is spacing in the activity groove, and the activity groove is provided with and is used for connecting protruding gliding cell body, and activity portion inner chamber length extension is to isometric with activity hook body, installs through a plurality of hydraulic stems between the lateral wall of activity portion installation piece and activity portion inner chamber.

Furthermore, a piston rod of the air cylinder is provided with a limiting ring, the outer end of the movable hook body is provided with a positioning plate, a limiting hole is formed in the positioning plate, the limiting ring acts on the positioning plate when the air cylinder works, and meanwhile the bottom of the piston rod of the air cylinder penetrates through the limiting hole.

Further, fixed hook frid and movable part installation piece meet when the installation, and fixed hook frid and the department of meeting of movable part installation piece are provided with the buffer block of crisscross meeting, and the upper and lower both sides edge of fixed hook frid and movable part installation piece all cuts the processing, produces the inclined plane dead slot after the cutting.

The rail transit vehicle traction and buffer device designed by the invention prevents the parts from being damaged due to large impact generated when the parts are contacted by the buffer action of the guide rod and the second spring on the control block through the control block which is arranged on the movable hook body and then contacted with the stroke part, simultaneously, the guide rod and the second spring are stressed and contracted so that the guide rod acts on the control switch, when the movable hook body moves and compresses the second spring to the compression limit, the control switch controls the cylinder to operate, the piston rod of the cylinder can extend downwards and act on the movable hook body, the movable hook body is acted by the piston rod of the cylinder to move downwards and is partially embedded into the fixed hook groove plate, and the cylinder keeps and self-locks at the moment, the movable hook body is always connected with the fixed hook groove plate, namely the connection is completed, at the moment, the fixed part and the movable part are connected into a whole, so that the connection stability is ensured, and the traction force is transmitted, the connection process does not need manual operation under normal conditions, so that the labor cost is reduced, the safety hidden danger during the connection is also reduced, only periodic inspection is needed, and the movable hook body and the fixed hook groove plate can be clamped with the fixed hook groove plate after the movable hook body moves downwards, the shape can be diversified, so that the proper shape, size and strength can be selected according to the parameters of the size, the quality and the like of a carriage, and the adaptability to various types of rail transit is good; when the outer ends of the fixed part and the movable part are connected with the carriages, a functional fixing component, such as a fixing part with a buffer structure, can be additionally arranged, so that the stability of the adjacent carriages after the fixed part and the movable part are connected is improved when the carriages move;

according to the rail transit vehicle traction buffering device designed by the invention, the limit block and the limit groove are matched for limiting, on one hand, the movable hook body can only move up and down in a vertical angle, so that the moving range is limited, and meanwhile, the limit block and the limit groove are matched for limiting and installing the movable hook body on the movable part installation block, so that the stability of the movable hook body in traction after connection can be greatly improved, the connection strength can be greatly improved, and the connection is prevented from being failed.

According to the rail transit vehicle traction and buffering device, the edges of the upper side and the lower side of the fixed hook groove plate and the edge of the upper side and the lower side of the movable part mounting block are cut through the buffer blocks which are connected in a staggered mode, inclined plane empty grooves are formed after cutting, when the fixed part and the movable part are mounted, the fixed hook groove plate and the movable part mounting block are gradually contacted and acted, buffering is performed through the buffer blocks which are arranged in a staggered mode, meanwhile, the elastic rubber is arranged on the material of the corresponding connection positions of the fixed hook groove plate and the movable part mounting block, the buffer action can enable the fixed hook groove plate and the movable part mounting block to deform elastically, the deformation just fills the inclined plane empty grooves, and therefore the stability after connection can be guaranteed simultaneously when the buffering purpose is achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the apparatus;

FIG. 2 is a schematic cross-sectional view of the device as a whole in a connected state;

FIG. 3 is a cross-sectional view of the fixing portion when not installed;

FIG. 4 is an enlarged schematic view of the upper left corner of FIG. 2;

FIG. 5 is a schematic view showing a structure of the movable section at the time of installation;

FIG. 6 is a schematic view of the movable section when not installed;

FIG. 7 is a schematic structural view of the movable section housing and the movable section mounting block;

fig. 8 is a schematic view of a partial cross-sectional structure of the movable portion with the addition of a slide assembly.

In the figure: the device comprises a fixing part 1, a guide plate 2, a fixed hook groove plate 3, a positioning plate 4, a movable hook body 5, a coupler knuckle 6, a mounting part 7, a cylinder 8, a control block 9, a coupler knuckle positioning groove 10, a first spring 11, a telescopic rod 12, a limiting block 13, a limiting groove 14, a limiting ring 15, a buffer groove 16, a control switch 17, a second spring 18, a guide rod 19, a limiting hole 20, a movable part mounting block 21, a movable part inner cavity 22, a movable plate 23, a connecting bulge 24 and a movable groove 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example 1:

as shown in fig. 1-8, the rail transit vehicle slow-down device described in this embodiment includes a fixed portion 1 and a movable portion 7, the fixed portion 1 and the movable portion 7 are respectively installed on two adjacent carriages of a vehicle, a fixed hook groove plate 3 is disposed in the middle of an inner cavity of the fixed portion 1, a movable hook 5 is disposed in the movable portion 7, the movable hook 5 is embedded in the fixed hook groove plate 3 for positioning, and the fixed portion 1 and the movable portion 7 are connected into a whole after the movable hook 5 is positioned;

a stroke control assembly is arranged in the fixed part 1 and comprises a stroke part of the inner cavity of the fixed part, which corresponds to the movable hook body 5, and a cylinder 8 arranged at the top of the inner cavity of the fixed part, the stroke part controls the operation of the cylinder 8 through a control module, when the movable part 7 of the carriage at one side is connected with the fixed part 1 of the carriage at the other side, the movable hook body 5 acts on the stroke part of the stroke control assembly, the stroke part starts the cylinder 8 to act and controls the movable hook body 5 to be matched and positioned with the fixed hook groove plate 3, and meanwhile, the cylinder 8 is self-locked to keep the movable hook body 5 to be fixedly matched and positioned on the fixed hook groove plate 3;

the stroke part comprises a control switch 17, a guide rod 19, a control block 9 and a second spring 18, the guide rod 19 is a telescopic rod body, the second spring 18 is arranged outside the guide rod 19 and connected to the control block 9, the movable hook body 5 acts on the control block 9 to compress the guide rod 19 and the second spring 18 when the fixed part 1 is connected with the movable part 7, and the guide rod 19 acts on the control switch 17 to further control the cylinder 8;

the movable part 7 comprises a movable part inner cavity 22, a movable part mounting block 21 is arranged in the movable part inner cavity 22, the movable hook body 5 is elastically mounted with the movable part inner cavity 22, a limiting piece is arranged at the bottom of the movable hook body 5, and the movable hook body 5 is limited and mounted on the movable part mounting block 21 through the limiting piece;

when the connection is carried out, the fixed part 1 and the movable part 7 are respectively arranged in two adjacent carriages of the vehicle, when the connection is carried out, the carriage on one side of the movable part 7 is slowly close to the carriage on one side of the fixed part 1, at the moment, the movable hook body 5 in the movable part 7 slowly enters the fixed part 1 and is right above the fixed hook groove plate 3 (of course, the symmetrical position is right below, or the whole fixed part 1 and the whole movable part 7 are symmetrically arranged up and down, taking the right above as an example), the movable hook body 5 contacts the control block 9 of the stroke part after entering, the damage caused by the large impact generated when the parts are contacted is prevented through the buffer action of the guide rod 19 and the second spring 18 on the control block 9, meanwhile, the guide rod 19 and the second spring 18 are contracted under the force, and the guide rod 19 acts on the control switch 17, when the movable hook body 5 moves and compresses the second spring 18 to the compression limit, the control switch 17 controls the cylinder 8 to operate, the piston rod of the cylinder 9 extends downwards and acts on the movable hook body 5, the movable hook body 5 moves downwards under the action of the piston rod of the cylinder 8 and is partially embedded into the fixed hook groove plate (the top of the movable hook body 5 is elastically installed in the inner cavity 22 of the movable part, so that the movable hook body 5 can move up and down under stress, the movable hook body 5 is positioned at a higher position in the inner cavity 22 of the movable part in the initial position, the movable hook body 5 can reset after the movable hook body is uninstalled), the cylinder 8 keeps and self-locks at the moment, the movable hook body 5 is always connected with the fixed hook groove plate 3, namely the connection is completed, the fixed part 1 and the movable part 7 are connected into a whole, so that the connection is stable and the traction force is transmitted, the connection process does not need manual operation under normal conditions, so that the labor cost is reduced, and the potential safety hazard during the connection is also reduced, the movable hook body and the fixed hook groove plate 3 can be clamped with the fixed hook groove plate 3 only after the movable hook body moves downwards, and the shapes can be diversified, so that the proper shape, size and strength can be selected according to parameters such as the size and the quality of a carriage, and the adaptability to various vehicle types of rail transit is good; when the outer ends of the fixed part 1 and the movable part 7 are connected with the carriages, functional fixing components, such as fixing pieces with buffer structures, can be additionally arranged, so that the stability of the adjacent carriages after the fixed part 1 and the movable part 7 are connected is improved when the carriages move.

In this embodiment, a guide plate 2 is disposed in an inner cavity of the fixing portion 1, a guide slope is disposed on a bottom surface of one side of the guide plate 2 close to the movable hook 5, and the guide plate 2 is provided with a horizontal extension portion along a tail end of the guide slope, the guide plate 2 is fixedly mounted in the fixing portion 1, or the guide plate 2 is mounted through a cylinder with a control module, the guide plate is normally used during fixed mounting, the position of the guide plate 2 can be finely adjusted when the guide plate is mounted through the cylinder with the control module, so that the initial position of the movable hook 5 after being guided by the guide plate 2 during mounting is conveniently controlled, the initial position of the movable hook 5 is higher due to elastic mounting, after the movable hook 5 enters the inner cavity of the fixing portion 1, due to the arrangement of the guide plate 2, the end portion of the movable hook 5 acts on the guide slope, so that the movable hook 5 gradually reduces the height, and when the movable hook is reduced to a certain height, the top of the movable hook 5 is connected with the horizontal extension portion and translates, and stable mounting of the movable hook is ensured.

In this embodiment, fixed part 1 inner wall is provided with the dashpot 16 of installation stroke control subassembly, two dashpots 16 that correspond set up to a set of, and control block 9 both ends all are provided with protruding spacing in the dashpot 16 that corresponds, and control block 9 is to dashpot 16 one side displacement when fixed part and movable part meet, in the protruding spacing and dashpot at control block both ends, the arch of formation between the adjacent dashpot 16 cooperates in the inner chamber of control block 9 and fixed part simultaneously to guarantee stably.

In this embodiment, fixed part 1, movable part 7, the equal longitudinal symmetry setting of fixed part 1 and the 7 internal components of movable part, movable coupler body 5 sets up two from top to bottom, and fixed hook frid 3 and movable part installation piece 21 are upper and lower symmetric distribution, and when adjacent carriage meets this moment, two movable coupler bodies 5 install simultaneously and lock in corresponding fixed hook frid 3 to increase the stability after connecting, guarantee the stable transmission of traction force.

In this embodiment, a plurality of coupler knuckle locating grooves 10 have all been seted up to fixed hook groove plate 3 both sides from top to bottom, and two movable coupler bodies 5 of longitudinal symmetry all are provided with coupler knuckle 6 that corresponds coupler knuckle locating groove 10, and coupler knuckle 6 bottom is provided with the direction arch, and coupler knuckle 6 meets with coupler knuckle locating groove 10, sets up a plurality ofly can increase intensity and stability, and the direction arch makes coupler knuckle 6 installation more stable, and reduces the wearing and tearing when installing.

In this embodiment, the part that the activity coupler body 5 is located the inside of movable part 7 is provided with stopper 13, it has spacing groove 14 to open on the movable part installation piece 21, stopper 13 is including the horizontal pole and the montant that meet, spacing groove 14 is character cut in bas-relief and 14 outer end openings of spacing groove cooperate in the montant part of stopper 13, it is obvious, if the activity coupler body 5 is only when elastic mounting is on movable part inner chamber 22, the joint strength of activity coupler body 5 is just very limited, it is spacing through stopper 13 and spacing groove 14's cooperation this moment, on the one hand on vertical angle, the activity coupler body 5 only can reciprocate, the range of movement has been restricted, stopper 13 and spacing groove 14 cooperation are with activity coupler body 5 spacing installation on movable part installation piece 21 simultaneously, can increase the stability of activity coupler body 5 when connecting the back and pulling by a wide margin, its joint strength can promote, prevent to connect the trouble.

In this embodiment, the telescopic rod 12 is installed on the movable hook 5, the telescopic rod 12 is connected to the inner wall of the movable portion inner cavity 22, the first spring 11 is installed outside the telescopic rod 12, and the movable hook 5 is elastically installed on the movable portion inner cavity 22 through the telescopic rod 12 and the first spring 11.

In this embodiment, a sliding assembly is disposed at an end of the telescopic rod 12, a movable groove 25 is formed in the movable portion inner cavity 22, the sliding assembly is limited and horizontally slides inside the movable groove 25, the movable plate 23 and the telescopic rod 12 are connected, the movable plate 23 is limited in the movable groove 25, the movable groove 25 is provided with a groove body for connecting the protrusion 24 to slide, the length of the inner cavity of the movable portion 7 is extended to be as long as that of the movable hook body 5, as shown in fig. 8, the movable portion mounting block 21 and the side wall of the movable portion inner cavity 22 are mounted through a plurality of hydraulic rods, when the movable portion mounting block 21 is pulled back into the movable portion inner cavity 22 under the action of the hydraulic rods when the movable portion is not mounted, the movable portion 5 is also driven by the movable plate 23 to return into the movable portion inner cavity 22, thereby preventing the movable hook body 5 from being partially exposed, saving space, and reducing erosion of rain and snow to the movable hook body, when the movable portion mounting block 21 is mounted, the hydraulic rods control the movable portion mounting block to move outwards to a proper position, thereby satisfying connection use.

In this embodiment, a piston rod of the cylinder 8 is provided with a limiting ring 15, the outer end of the movable hook 5 is provided with a positioning plate 4, the positioning plate 4 is provided with a limiting hole 20, the limiting ring 15 acts on the positioning plate 4 when the cylinder 8 works, meanwhile, the bottom of the piston rod of the cylinder 8 penetrates through the limiting hole 20, the movable hook 5 moves downwards under the action of the limiting ring 15, the contact area is increased, so that the stability is increased, meanwhile, the bottom of the piston rod of the cylinder 8 penetrates through the limiting hole 20 to play a limiting role, and the connection fault caused by accidental movement when the movable hook 5 is locked is prevented.

In this embodiment, fixed hook frid 3 and movable part installation piece 21 meet when the installation, and fixed hook frid 3 and the department of meeting of movable part installation piece 21 are provided with the buffer block of crisscross phase to each other, the upper and lower both sides edge of fixed hook frid 3 and movable part installation piece 21 all cuts the processing, produce the inclined plane dead slot after the cutting, when fixed part 1 and movable part 7 installation, fixed hook frid 3 and movable part installation piece 21 contact gradually and act on, cushion through setting up crisscross buffer block who sets up buffers, set up the material that fixed hook frid 3 and movable part installation piece 21 correspond the position of meeting simultaneously to elastic rubber, cushioning effect can make fixed hook frid 3 and the elastic deformation of movable part installation piece 21 this moment, the inclined plane dead slot that sets up just in time is filled in deformation, therefore can guarantee the stability after connecting simultaneously when reaching the buffering purpose.

In the embodiment, the fixed part 1 and the movable part 7 are respectively installed on two adjacent carriages of the vehicle, when the connection is performed, the carriage on one side of the movable part 7 is gradually close to the carriage on one side of the fixed part 1, at this time, the movable hook body 5 in the movable part 7 slowly enters the fixed part 1 and is right above the fixed hook groove plate 3 (of course, the lower part can be symmetrically arranged, or the whole fixed part 1 and the whole movable part 7 are symmetrically arranged up and down, taking the upper part as an example), the movable hook body 5 contacts the control block 9 of the stroke part after entering, the damage caused by the large impact generated when the parts contact is prevented through the buffer action of the guide rod 19 and the second spring 18 on the control block 9, meanwhile, the guide rod 19 and the second spring 18 are contracted under the force, and the guide rod 19 acts on the control switch 17, when the movable hook body 5 moves and compresses the second spring 18 to the compression limit, the control switch 17 controls the cylinder 8 to operate, the piston rod of the cylinder 9 extends downwards and acts on the movable hook body 5, the movable hook body 5 moves downwards under the action of the piston rod of the cylinder 8 and is partially embedded into the fixed hook groove plate (the top of the movable hook body 5 is elastically installed in the inner cavity 22 of the movable part, so that the movable hook body 5 can move up and down under stress, the movable hook body 5 is positioned at a higher position in the inner cavity 22 of the movable part in the initial position, the movable hook body 5 can reset after the movable hook body is uninstalled), the cylinder 8 keeps and self-locks at the moment, the movable hook body 5 is always connected with the fixed hook groove plate 3, namely the connection is completed, the fixed part 1 and the movable part 7 are connected into a whole, so that the connection is stable and the traction force is transmitted, the connection process does not need manual operation under normal conditions, so that the labor cost is reduced, and the potential safety hazard during the connection is also reduced, the movable hook body and the fixed hook groove plate 3 can be clamped with the fixed hook groove plate 3 only after the movable hook body moves downwards, and the shapes can be diversified, so that the proper shape, size and strength can be selected according to parameters such as the size and the quality of a carriage, and the adaptability to various vehicle types of rail transit is good; when the outer ends of the fixed part 1 and the movable part 7 are connected with the carriages, functional fixing components, such as fixing pieces with buffer structures, can be additionally arranged, so that the stability of the adjacent carriages between which the fixed part 1 and the movable part 7 are connected is improved when the carriages move; the initial position of the movable hook body 5 is higher due to elastic installation, after the movable hook body 5 enters the inner cavity of the fixed part 1, the end part of the movable hook body 5 acts with the guide inclined plane due to the arrangement of the guide plate 2, so that the height of the movable hook body 5 is gradually reduced, and when the height is reduced to a certain height, the top of the movable hook body 5 is connected with the horizontal extension part and translates, and the stable installation of the movable hook body is ensured; the internal components of the fixed part 1, the movable part 7, the fixed part 1 and the movable part 7 are all arranged in an up-down symmetrical mode, the movable hook bodies 5 are arranged in an up-down symmetrical mode, the fixed hook groove plates 3 and the movable part mounting blocks 21 are distributed in an up-down symmetrical mode, and at the moment, when adjacent carriages are connected, the two movable hook bodies 5 are simultaneously mounted and locked on the corresponding fixed hook groove plates 3, so that the stability after connection is improved, and the stable transmission of traction force is guaranteed; through the matched limiting of the limiting block 13 and the limiting groove 14, on one hand, the movable hook body 5 can only move up and down in a vertical angle, the moving range is limited, meanwhile, the limiting block 13 and the limiting groove 14 are matched to limit and install the movable hook body 5 on the movable part installation block 21, the stability of the movable hook body 5 during traction after connection can be greatly improved, the connection strength can be greatly improved, and the connection is prevented from being broken down; the length of the inner cavity of the movable part 7 is prolonged to be equal to that of the movable hook body 5, the movable part mounting block 21 and the side wall of the inner cavity 22 of the movable part are mounted through a plurality of hydraulic rods, when the movable part mounting block is not mounted, the movable part mounting block 21 is pulled back into the inner cavity 22 of the movable part under the action of the hydraulic rods, at the moment, the movable plate 23 also drives the movable hook body 5 to return into the inner cavity 22 of the movable part, so that the movable hook body 5 is prevented from being partially exposed, the space is saved, the erosion of the movable hook body in rainy and snowy weather is reduced, and the hydraulic rods control the movable part mounting block 21 to move outwards to a proper position during mounting, so that the connection use is met; the movable hook body 5 moves downwards under the action of the limiting ring 15, the contact area is increased, so that the stability is increased, and meanwhile, the bottom of a piston rod of the air cylinder 8 penetrates through the limiting hole 20 to play a limiting role, so that connection faults caused by accidental movement when the movable hook body 5 is locked are prevented; when fixed part 1 and the installation of movable part 7, fixed hook frid 3 gradually contacts and acts on with movable part installation piece 21, cushion through setting up the buffer block of crisscross setting, set up the material that fixed hook frid 3 and movable part installation piece 21 correspond the position of meeting simultaneously into elastic rubber, the cushioning effect can make fixed hook frid 3 and the 21 elastic deformation of movable part installation piece this moment, the inclined plane dead slot that sets up is just in time filled in deformation, therefore can guarantee the stability after connecting simultaneously when reaching the buffering purpose.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims (10)

1. A rail transit vehicle retarding device comprises a fixed part (1) and a movable part (7), wherein the fixed part (1) and the movable part (7) are respectively installed on two adjacent carriages of a vehicle, and is characterized in that a fixed hook groove plate (3) is arranged in the middle of an inner cavity of the fixed part (1), a movable hook body (5) is arranged in the movable part (7), the movable hook body (5) is embedded and positioned in the fixed hook groove plate (3), and the fixed part (1) and the movable part (7) are connected into a whole after the movable hook body (5) is positioned;

a stroke control assembly is arranged in the fixed part (1), the stroke control assembly comprises a stroke part of a fixed part inner cavity corresponding to the movable hook body (5) and a cylinder (8) arranged at the top of the fixed part inner cavity, the stroke part controls the cylinder (8) to operate through a control module, when the movable part (7) of the carriage at one side is connected with the fixed part (1) of the carriage at the other side, the movable hook body (5) acts on the stroke part of the stroke control assembly, the stroke part starts the cylinder (8) to act and controls the movable hook body (5) to be matched and positioned with the fixed hook groove plate (3), and meanwhile, the cylinder (8) is self-locked to keep the movable hook body (5) to be fixedly matched and positioned with the fixed hook groove plate (3);

the stroke part comprises a control switch (17), a guide rod (19), a control block (9) and a second spring (18), the guide rod (19) is a telescopic rod body, the second spring (18) is arranged outside the guide rod (19) and connected to the control block (9), the movable hook body (5) acts on the control block (9) to compress the guide rod (19) and the second spring (18) when the fixed part (1) is connected with the movable part (7), and the guide rod (19) acts on the control switch (17) to further control the cylinder (8);

the movable part (7) comprises a movable part inner cavity (22), a movable part mounting block (21) is arranged in the movable part inner cavity (22), the movable hook body (5) and the movable part inner cavity (22) are elastically mounted, a limiting part is arranged at the bottom of the movable hook body (5), and the movable hook body (5) is limited and mounted on the movable part mounting block (21) through the limiting part.

2. The rail transit vehicle retarding device according to claim 1, wherein a guide plate (2) is arranged in the inner cavity of the fixed portion (1), a guide slope is arranged on the bottom surface of one side of the guide plate (2) close to the movable hook body (5), a horizontal extension is arranged along the tail end of the guide slope, the guide plate (2) is fixedly arranged in the fixed portion (1), or the guide plate (2) is arranged through a cylinder with a control module.

3. The rail transit vehicle retarding device of claim 1, wherein the inner wall of the fixed portion (1) is provided with a buffer groove (16) for mounting the stroke control assembly, two corresponding buffer grooves (16) are arranged in one group, and two ends of the control block (9) are provided with protrusions for limiting the corresponding buffer grooves (16).

4. The rail transit vehicle retarding device according to any one of claims 1 to 3, wherein the internal components of the fixed portion (1), the movable portion (7), the fixed portion (1) and the movable portion (7) are arranged symmetrically up and down.

5. The rail transit vehicle retarding device according to claim 4, wherein a plurality of coupler knuckle locating grooves (10) are formed in the upper side and the lower side of the fixed coupler slot plate (3), the two movable coupler bodies (5) which are symmetrical up and down are provided with coupler knuckles (6) corresponding to the coupler knuckle locating grooves (10), and guide protrusions are arranged at the bottoms of the coupler knuckles (6).

6. The rail transit vehicle retarding device according to claim 5, wherein a limiting block (13) is disposed on a portion of the movable hook body (5) located inside the movable portion (7), a limiting groove (14) is formed in the movable portion mounting block (21), the limiting block (13) comprises a cross bar and a vertical bar which are connected, the limiting groove (14) is in a concave shape, and an opening at an outer end of the limiting groove (14) is matched with the vertical bar portion of the limiting block (13).

7. The rail transit vehicle retarding device according to claim 6, wherein the movable hook body (5) is provided with a telescopic rod (12), the telescopic rod (12) is connected with the inner wall of the movable part inner cavity (22), and a first spring (11) is arranged outside the telescopic rod (12).

8. The rail transit vehicle retarding device according to claim 7, wherein the end of the telescoping rod (12) is provided with a sliding assembly, a movable groove (25) is opened in the inner cavity (22) of the movable portion, the sliding assembly is limited and horizontally slides in the movable groove (25),

the sliding assembly comprises a movable plate (23) and a connecting bulge (24), the connecting bulge (24) is connected with the movable plate (23) and an expansion rod (12), the movable plate (23) is limited in a movable groove (25), the movable groove (25) is provided with a groove body used for connecting the bulge (24) to slide, the length of an inner cavity of the movable part (7) is prolonged to be equal to that of the movable hook body (5), and the movable part mounting block (21) and the side wall of the inner cavity (22) of the movable part are mounted through a plurality of hydraulic rods.

9. The rail transit vehicle traction and deceleration device according to claim 1, wherein a piston rod of the cylinder (8) is provided with a limiting ring (15), the outer end of the movable hook body (5) is provided with a positioning plate (4), the positioning plate (4) is provided with a limiting hole (20), the limiting ring (15) acts on the positioning plate (4) when the cylinder (8) works, and the bottom of the piston rod of the cylinder (8) penetrates through the limiting hole (20).

10. The rail transit vehicle retarding device of claim 1, wherein the fixed hook groove plate (3) and the movable portion mounting block (21) are connected during installation, the connecting part of the fixed hook groove plate (3) and the movable portion mounting block (21) is provided with buffer blocks which are connected in a staggered manner, the edges of the upper side and the lower side of the fixed hook groove plate (3) and the movable portion mounting block (21) are both cut, and a slope empty groove is formed after cutting.

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