Conversion devices, braking systems, and trains.

Abstract

DEPCT65 The appearance of this disclosure provides for conversion equipment, braking systems, and trains related to the field. The railway conversion kit includes the valve body, valve cover, and retraction part, with the valve body being arranged. There should be an air inlet path to the valve body, an air outlet path from the first valve body, and a path for the valve body that encloses it. The tongue is mounted on a rotatable tongue body, and the tongue cover is arranged with a routing path to the first tongue cover. The second valve path and the third valve path, the first contraction segment is positioned at the first slot. The second valve cover, where the valve is enclosed, is constructed to allow it to rotate relative to the valve body. In order to be positioned between the first and second mounting positions, the tongue cover is installed on top. The rotatable tongue design reduces space requirements, making it more compact and simpler. -----------------------------------------------------------

Description

Switching device, braking system and train

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application with application number 202111123610.7 filed with the China Patent Office on September 24, 2021, entitled “Conversion device, braking system and train”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of trains, and in particular to a conversion device, a braking system and a train. Background Art

[0004] Trains are one of the important means of transportation in the transportation system. The speed of the braking force output of the train's braking system is closely related to the train's braking needs and will also affect the operation of the train. Generally speaking, a conversion device will be added to the braking system to adjust the braking force output of the braking system.

[0005] In the prior art, the structure of the conversion device is relatively complex.

[0006] Summary of the Invention

[0007] The present application provides a conversion device, a braking system and a train, which can make the structure compact and simple.

[0008] The embodiments of the present application can be implemented as follows:

[0009] An embodiment of the present application provides a conversion device, which may include:

[0010] A valve body, wherein the valve body may be provided with a valve body air inlet path, a first valve body air outlet path and a valve body passage;

[0011] A valve cover, the valve cover can be rotatably mounted on the valve body; the valve cover can be provided with a first valve cover passage, a second valve cover passage, and a third valve cover passage;

[0012] a first shrinkage member, wherein the first shrinkage member may be provided at a first port of the second valve cover passage;

[0013] The valve cover can be used to rotate relative to the valve body to switch between a first installation position and a second installation position;

[0014] When the valve cover is in the first installation position, the valve body air inlet passage, the first valve cover passage, the valve body passage, the second valve cover passage and the first valve body air outlet passage can be connected in sequence, the first port of the second valve cover passage can be connected to the air outlet end of the valve body passage, and the second port of the second valve cover passage can be connected to the air inlet end of the first valve body air outlet passage; the first shrinkage member can be used to slow down the gas in the valve body passage from entering the second valve cover passage, and the two ports of the third valve cover passage can be used to be blocked by the side wall of the valve body;

[0015] When the valve cover is in the second installation position, the valve body air inlet path, the third valve cover passage, the valve body passage, the second valve cover passage and the first valve body air outlet path can be connected in sequence, the first port of the second valve cover passage can be used to be blocked by the side wall of the valve body, the second port of the second valve cover passage can be used to connect the air outlet end of the valve body passage and the air inlet end of the first valve body air outlet path, and the two ports of the first valve cover passage can be used to be blocked by the side wall of the valve body.

[0016] Optionally, a second valve body air outlet passage may be provided on the valve body, and an air inlet end of the second valve body air outlet passage may be in communication with the valve body passage.

[0017] Optionally, a second shrinkage member may be provided at the air inlet end of the first valve body air outlet passage, and the second shrinkage member may be used to slow down the flow of gas in the second port of the second valve cover passage into the first valve body air outlet passage.

[0018] Optionally, the outer wall of the second shrinkage part and the inner wall of the air inlet end of the first valve body air outlet can be fitted together, and the inner wall of the second shrinkage part can define a second flow limiting channel, which can be used to slow down the gas in the second port of the second valve cover passage from entering the first valve body air outlet.

[0019] Optionally, the outer wall of the first shrinkage member and the inner wall of the first port may fit together, and the inner wall of the first shrinkage member may define a first flow limiting channel, which may be used to slow down the gas in the valve body passage from entering the second valve cover passage.

[0020] Optionally, the second port of the second valve cover passage may be a cavity structure.

[0021] Optionally, the structure of the first valve cover passage and the structure of the second valve cover passage may be the same.

[0022] Optionally, the air inlet direction of the valve body and the air outlet direction of the valve body may form an angle.

[0023] Optionally, a protective cover may be installed on the outer side of the valve cover.

[0024] An embodiment of the present application also provides a braking system, which may include the above-mentioned conversion device.

[0025] An embodiment of the present application further provides a train, which may include a car body and the above-mentioned braking system, and the braking system may be installed on the car body.

[0026] The beneficial effects of the conversion device, braking system, and train of the embodiments of the present application include at least, for example:

[0027] The embodiment of the present application provides a conversion device, which may include a valve body, a valve cover and a first shrinkage member, the valve body may be provided with a valve body air inlet path, a first valve body air outlet path and a valve body passage; the valve cover may be rotatably mounted on the valve body, and the valve cover is rotatably mounted on the valve body, which can reduce the use space and is more compact and simple, wherein the valve cover may be provided with a first valve cover passage, a second valve cover passage and a third valve cover passage; the first shrinkage member may be provided at a first port of the second valve cover passage; the valve cover may be used to rotate relative to the valve body to switch between the first installation position and the second installation position, and the first installation position is switched by rotation. Switching between the mounting position and the second mounting position is also very convenient. When the valve cover is in the first mounting position, the valve body air inlet, the first valve cover passage, the valve body passage, the second valve cover passage, and the first valve body air outlet can be connected in sequence. The first port of the second valve cover passage can be connected to the air outlet end of the valve body passage, and the second port of the second valve cover passage can be connected to the air inlet end of the first valve body air outlet. The first shrinkage member can be used to slow down the flow of gas in the valve body passage into the second valve cover passage, and the two ports of the third valve cover passage can be blocked by the side wall of the valve body. At this time, the first shrinkage member is also in the gas flow path, slowing down the air flow speed. When the valve cover is in the second mounting position, the valve body air inlet, the third valve cover passage, the valve body passage, the second valve cover passage, and the first valve body air outlet can be connected in sequence. The first port of the second valve cover passage can be blocked by the side wall of the valve body, and the second port of the second valve cover passage can be used to connect the air outlet end of the valve body passage to the air inlet end of the first valve body air outlet. The two ports of the first valve cover passage can be blocked by the side wall of the valve body. At this time, since the first port of the second valve cover passage is blocked by the side wall of the valve body, the first shrinkage hole member is not in the gas flow path, and the gas flow speed is accelerated.

[0028] An embodiment of the present application further provides a braking system, which may include the above-mentioned conversion device, which can make the structure compact and simple.

[0029] An embodiment of the present application further provides a train, which may include a car body and the above-mentioned braking system. The braking system may be installed on the car body, which can make the structure compact and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0031] FIG1 is a schematic structural diagram of a conversion device provided in an embodiment of the present application, wherein the valve cover is in a first installation position;

[0032] FIG2 is a schematic structural diagram of the conversion device provided in an embodiment of the present application, wherein the valve cover is in a second installation position.

[0033] Icon: 1000-conversion device; 100-valve body; 200-valve cover; 110-valve body air inlet; 120-first valve body air outlet; 130-valve body passage; 140-second valve body air outlet; 210-first valve cover passage; 220-second valve cover passage; 221-first port; 222-second port; 230-third valve cover passage; 300-first shrinkage component; 310-first flow limiting channel; 400-second shrinkage component; 410-second flow limiting channel; Cv-airflow. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of this application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.

[0038] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of this application can be combined with each other.

[0040] As one of the important means of transportation in the transportation system, trains play a very important role. The speed of the braking force output of the train's braking system is closely related to the braking needs of the train, and will also affect the operation of the train. Generally speaking, a conversion device will be added to the braking system to adjust the braking force output of the braking system.

[0041] For example, in a long, slow freight train, the braking wave takes a long time to transmit from the front car to the rear car. Generally, a slow braking force output is required to ensure that the front, middle, and rear cars of the train are all subjected to varying degrees of braking force, effectively reducing the train's longitudinal impulse. If the braking system outputs too quickly, the front car of the train will apply braking force before the rear car has applied it. This can cause a large longitudinal impulse of the train, and in severe cases, can lead to derailment.

[0042] For express trains with short formations and high speeds, the time required for the braking wave to be transmitted from the front vehicle to the rear vehicle is short, and the braking force output is generally required to be fast. This ensures that the train brakes quickly, makes the braking actions of the front and rear vehicles of the train consistent, effectively reduces the longitudinal impulse of the train, and greatly shortens the idling distance of the train, freeing up effective braking distance space to ensure the driving safety of the vehicle.

[0043] When express trains are empty and heading to other destinations to load cargo, they are usually mixed with long trains. In this way, the problem of inconsistent braking force output will become prominent. When the number of express trains is large, it will seriously affect the operation of the train. Therefore, it is necessary to add a conversion device to the braking system to adjust the braking force output of the braking system.

[0044] At this time, in the prior art, the structure of the conversion device of the braking system of the train system is relatively complex.

[0045] In view of this, the conversion device, braking system and train provided in the embodiments of the present application can at least solve this problem.

[0046] Please refer to Figures 1 and 2. This embodiment provides a conversion device 1000, a braking system, and a train, which will be described in detail below.

[0047] An embodiment of the present application provides a train (not shown), which may include a vehicle body (not shown) and a braking system (not shown), which may be mounted on the vehicle body. The braking system may include a conversion device 1000. In the braking system, an airflow Cv needs to be input to the conversion device 1000. The conversion device 1000 can change the output flow rate of the airflow Cv, thereby controlling the speed of power output. When the airflow Cv output by the conversion device 1000 is slow, the braking output force of the braking system is small. When the airflow Cv output by the conversion device 1000 is fast, the braking output force of the braking system is large.

[0048] Among them, the conversion device 1000 may include a valve body 100, a valve cover 200 and a first shrinkage part 300. The valve body 100 may be provided with a valve body air inlet path 110, a first valve body air outlet path 120 and a valve body passage 130. The valve cover 200 can be rotatably installed on the valve body 100. It can be understood that the valve cover 200 is rotatably installed on the valve body 100, which can reduce the usage space and be more compact and simple. Of course, in other embodiments, a protective cover can also be installed on the outside of the valve cover 200 to avoid improper operation by personnel.

[0049] The valve bonnet 200 may be provided with a first valve bonnet passage 210, a second valve bonnet passage 220, and a third valve bonnet passage 230. In this embodiment, the structure of the first valve bonnet passage 210 and the second valve bonnet passage 220 may be identical. A first shrinkage member 300 may be provided at the first port 221 of the second valve bonnet passage 220. The valve bonnet 200 may be rotatable relative to the valve body 100 to switch between a first installation position and a second installation position. This rotational switching between the first and second installation positions is also very convenient. Specifically, the second installation position may be achieved by rotating the valve bonnet 200 180 degrees clockwise or 180 degrees counterclockwise relative to the valve body 100 in the first installation position.

[0050] When the valve cover 200 is in the first installation position, the valve body air inlet path 110, the first valve cover passage 210, the valve body passage 130, the second valve cover passage 220 and the first valve body air outlet path 120 can be connected in sequence, the first port 221 of the second valve cover passage 220 and the air outlet end of the valve body passage 130 can be connected, the second port 222 of the second valve cover passage 220 and the air inlet end of the first valve body air outlet path 120 can be connected, the first shrinkage component 300 can be used to slow down the gas in the valve body passage 130 entering the second valve cover passage 220, and the two ports of the third valve cover passage 230 can be used to be blocked by the side wall of the valve body 100. At this time, the first shrinkage component 300 is also in the gas flow path, slowing down the speed of the air flow Cv.

[0051] When the valve cover 200 is in the second installation position, the valve body air inlet passage 110, the third valve cover passage 230, the valve body passage 130, the second valve cover passage 220, and the first valve body air outlet passage can be sequentially connected. The first port 221 of the second valve cover passage 220 can be blocked by the side wall of the valve body 100, and the second port 222 of the second valve cover passage 220 can be connected to the air outlet end of the valve body passage 130 and the air inlet end of the first valve body air outlet passage 120. Both ports of the first valve cover passage 210 can be blocked by the side wall of the valve body 100. At this time, because the first port 221 of the second valve cover passage 220 is blocked by the side wall of the valve body 100, the first pore shrinkage member 300 is no longer in the gas flow path, and the air flow Cv speed is accelerated, that is, the first pore shrinkage member 300 is also blocked by the side wall of the valve body 100. It should be noted that the first pore shrinkage member 300 can be integrally formed with the valve cover 200.

[0052] In this embodiment, the air inlet direction of the valve body 100 and the air outlet direction of the valve body 100 may form an angle. Specifically, the air inlet direction of the valve body 100 and the air outlet direction of the valve body 100 may be perpendicular to each other.

[0053] Among them, a second valve body air outlet path 140 can be provided on the valve body 100, and the air inlet end of the second valve body air outlet path 140 and the valve body passage 130 can be connected. It can be understood that at this time, the air flow Cv can flow out from the first valve body air outlet path 120 and the second valve body air outlet path 140 at the same time.

[0054] The air inlet end of the first valve body air outlet path 120 can be provided with a second shrinkage component 400, and the second shrinkage component 400 can be used to slow down the gas in the second port 222 of the second valve cover passage 220 from entering the first valve body air outlet path 120. It can be understood that the second shrinkage component 400 can be integrally formed with the valve body 100. At this time, in the first installation position, the air flow Cv in the conversion device 1000 can pass through the first shrinkage component 300 and the second shrinkage component 400 and then flow out from the air outlet end of the first valve body air outlet path 120.

[0055] The outer wall of the second shrinkage component 400 and the inner wall of the air inlet end of the first valve body air outlet path 120 can be fitted together, and the inner wall of the second shrinkage component 400 can define a second flow limiting channel 410, and the second flow limiting channel 410 can be used to slow down the gas in the second port 222 of the second valve cover passage 220 from entering the first valve body air outlet path 120, the outer wall of the first shrinkage component 300 and the inner wall of the first port 221 can be fitted together, and the inner wall of the first shrinkage component 300 can define a first flow limiting channel 310, and the first flow limiting channel 310 can be used to slow down the gas in the valve body passage 130 from entering the second valve cover passage 220.

[0056] Among them, the second port 222 of the second valve cover passage 220 can be a cavity structure. It can be understood that when the airflow Cv enters the second valve cover passage 220 and then enters the second port 222, the resistance of the airflow Cv will change. Specifically, the resistance of the airflow Cv can be reduced.

[0057] The conversion device 1000 may include a valve body 100, a valve cover 200 and a first shrinkage part 300. The valve body 100 may be provided with a valve body air inlet 110, a first valve body air outlet 120 and a valve body passage 130; the valve cover 200 may be rotatably mounted on the valve body 100. The valve cover 200 is rotatably mounted on the valve body 100, which can reduce the usage space and is more compact and simple.

[0058] Among them, the valve cover 200 can be provided with a first valve cover passage 210, a second valve cover passage 220 and a third valve cover passage 230; the first shrinkage member 300 can be provided at the first port 221 of the second valve cover passage 220; the valve cover 200 can be used to be rotatable relative to the valve body 100 to switch between the first installation position and the second installation position, and it is very convenient to switch between the first installation position and the second installation position by rotation.

[0059] When the valve cover 200 is in the first installation position, the valve body air inlet path 110, the first valve cover passage 210, the valve body passage 130, the second valve cover passage 220 and the first valve body air outlet path 120 can be connected in sequence, the first port 221 of the second valve cover passage 220 and the air outlet end of the valve body passage 130 can be connected, and the second port 222 of the second valve cover passage 220 and the air inlet end of the first valve body air outlet path 120 can be connected; the first shrinkage component 300 can be used to slow down the gas in the valve body passage 130 entering the second valve cover passage 220, and the two ports of the third valve cover passage 230 can be used to be blocked by the side wall of the valve body 100. At this time, the first shrinkage component 300 is also in the gas flow path, slowing down the speed of the airflow Cv.

[0060] When the valve cover 200 is in the second installation position, the valve body air inlet passage 110, the third valve cover passage 230, the valve body passage 130, the second valve cover passage 220, and the first valve body air outlet passage 120 can be connected in sequence. The first port 221 of the second valve cover passage 220 can be blocked by the side wall of the valve body 100. The second port 222 of the second valve cover passage 220 can be connected to the air outlet end of the valve body passage 130 and the air inlet end of the first valve body air outlet passage 120. Both ports of the first valve cover passage 210 can be blocked by the side wall of the valve body 100. At this time, since the first port 221 of the second valve cover passage 220 is blocked by the side wall of the valve body 100, the first cavity shrinking member 300 is also blocked by the side wall of the valve body 100, and the flow of the airflow Cv is not hindered, and the speed of the airflow Cv is accelerated.

[0061] The brake system may include the above-mentioned conversion device 1000, which can make the structure compact and simple.

[0062] The train may include a vehicle body and the above-mentioned braking system, and the braking system may be installed on the vehicle body, which can make the structure compact and simple.

[0063] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims. Industrial Applicability

[0064] Embodiments of the present application provide a conversion device, a braking system, and a train, relating to the field of trains. The conversion device includes a valve body, a valve cover, and a first shrinkage member. The valve body is provided with a valve body air inlet, a first valve body air outlet, and a valve body passage. The valve cover is rotatably mounted on the valve body and is provided with a first valve cover passage, a second valve cover passage, and a third valve cover passage. The first shrinkage member is disposed at a first port of the second valve cover passage. The valve cover is rotatable relative to the valve body to switch between a first installation position and a second installation position. The rotatable mounting of the valve cover on the valve body reduces space usage and is more compact and simple.

[0065] Furthermore, it is understood that the valve body, valve cover, first orifice reduction member, conversion device, and brake system of the present application are reproducible and can be applied in a variety of industrial applications. For example, the valve body, valve cover, first orifice reduction member, conversion device, and brake system of the present application can be applied in vehicles, such as trains.

Claims

DEPCT651. The assembled conversion device consists of: the vehicle body (100), where the valve body (100) is provided with the air passages into the valve body (110), the air passages out of the first valve body (120), and the valve body passage (130); the valve housing (200), where the valve housing (200) is mounted on the rotatable valve body (100); and the valve housing (200) is provided with the first valve housing passage (210), the second valve housing passage (220), and the third valve housing passage (230); and the first retraction piece (300), where the first retraction piece (300) is provided at the first (221) of the valve housing passage. The second valve (220), the valve cover (200), is constructed to rotate relative to the valve body (100) so that it is sandwiched between the first and second mounting positions, where in the situation where the valve cover (200) is in the first mounting position, the air intake path into the valve body (110), the first valve cover path (210), the valve body path (130), the second valve cover path (220), and the air outlet path out of the first valve body (120) are connected respectively, the first opening (221) of the second valve cover path (220) is connected to the air outlet end of the valve body path (130).The second channel (222) of the second valve cover path (220) connects to the intake end of the exhaust path of the first valve body (120); the first retraction piece (300) is designed to slow the gas in the valve body path (130) entering the second valve cover path (220), and the two channels of the third valve cover path (230) are designed to be blocked by the side walls of the valve body (100); and in the situation where the valve cover (200) is in the second mounting position, the exhaust path into the valve body (110), the third valve cover path (230), the valve body path (130), the third valve cover path (200) The second (220) and the exhaust port path from the first valve (120) are connected sequentially; the first (221) of the second valve cover path (220) is constructed to be enclosed by the side wall of the valve (100); the second (222) of the second valve cover path (220) is constructed to connect the exhaust port end of the valve body path (130) to the inlet port end of the exhaust port path from the first valve (120); and the two ports of the first valve cover path (210) are constructed to be enclosed by the side wall of the valve (100).

2. The converter according to claim 1,Where the valve body (100) is fitted with an outlet path from the second valve body (140), and the inlet end of the outlet path from the second valve body (140) is connected to the valve body path (130).

3. The converter under claim 1 or 2, where the inlet end of the outlet path from the first valve body (120) is fitted with a second deflection element (400), and the second deflection element (400) is structured to slow the gas in the second channel (222) of the second valve cover path (220) entering the outlet path from the first valve body (120).

4. The converter under claim 3, where the wall The outer wall of the second shrink part (400) and the inner wall of the air intake end of the first valve body (120) are bonded together; the inner wall of the second shrink part (400) defines the second flow restriction channel (410), where the second flow restriction channel (410) is structured to slow the gas in the second channel (222) of the second valve enclosure (220) entering the first valve body (120).

5. Any of the conversion devices under claims 1 to 4, where the outer wall of the first shrink part (300) and the inner wall of the first channel (221) are bonded together,The inner wall of the first shrinkage element (300) defines the first flow restriction channel (310), and the first flow restriction channel (310) is structured to slow the gas in the valve body path (130) entering the second valve cover path (220).

6. Any converter under claims 1 to 5, in which the second channel (222) of the second valve cover path (220) has a cavity structure.

7. Any converter under claims 1 to 6, in which the structure of the first valve cover path (210) and the structure of the second valve cover path (220) are identical.

8. Converter 9. Any of the claims 1 to 7, where the valve body's air intake direction (100) and valve body's air outlet direction (100) form an angle between them.

10. Any of the conversion devices under claims 1 to 8, where the protective cover is mounted outside the valve cover (200).

11. A braking system that incorporates any of the conversion devices under claims 1 to 9.

12. A train that incorporates the carriage and braking system under claim 10, where the braking system is mounted on the carriage.

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