CN109291905B - Breathing dust filter and foundation brake device - Google Patents
Breathing dust filter and foundation brake device Download PDFInfo
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- CN109291905B CN109291905B CN201811284706.XA CN201811284706A CN109291905B CN 109291905 B CN109291905 B CN 109291905B CN 201811284706 A CN201811284706 A CN 201811284706A CN 109291905 B CN109291905 B CN 109291905B
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- dust filter
- air
- filter
- air channel
- air duct
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a breathing dust filter and a basic brake device, wherein the breathing dust filter comprises a body, a first air channel is formed inside the body, a vent hole is formed in the side wall of the first air channel, the vent hole penetrates through the body, one end of the body is an open end in the extending direction of the first air channel so as to form a first air port of the first air channel, and the other end of the body is a closed end so as to plug the first air channel; the basic brake device comprises the breathing dust filter. The invention reduces the water entering the breathing dust filter and improves the waterproof performance of the breathing dust filter.
Description
Technical Field
The invention belongs to the technical field of rail vehicle braking, and particularly relates to a breathing dust filter and a basic braking device.
Background
The breathing dust filter (hereinafter referred to as respirator) is an essential component of the basic brake device of the railway vehicle. In the braking and relieving process of the vehicle, the inner cavity of the basic braking device has the breathing function of gas communication with the outside. The respirator is arranged at the breathing passage and plays the roles of passive breathing and dust filtration.
As shown in fig. 1, the conventional respiratory dust filter includes a respirator 1, a dust filter 2 and a retainer ring 3, wherein the respirator 1 is fixedly mounted on a base body of a base brake in a threaded connection manner, an air duct is formed inside the respirator 1, the air duct penetrates through the respirator 1, the dust filter 2 is disposed inside the air duct of the respirator 1, the dust filter 2 is used for blocking dust entering the respirator 1 from the outside, and the retainer ring 3 is fixedly disposed on a side of the dust filter 2 to limit the dust filter 2.
However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:
when a car is washed, direct water flow or water drops can easily pass through the air inlet of the respirator body 1 and enter the interior of the respirator body 1, so that the water flow or the water drops have a chance to enter the interior of the cavity of the basic brake device, and further serious interference is caused to the normal use of internal parts of the basic brake device.
Disclosure of Invention
The invention provides the breathing dust filter and the basic brake device, solves the technical problem that water flow or water drops easily enter the breathing dust filter in the prior art, reduces water entering the breathing dust filter, and improves the waterproof performance of the breathing dust filter.
In order to achieve the purpose, the invention adopts the technical scheme that:
the embodiment of the invention provides a breathing dust filter, which comprises:
the body, the inside of body is formed with first wind channel, the lateral wall in first wind channel is formed with the ventilation hole, the ventilation hole runs through the body, along in the extending direction in first wind channel, the one end of body is the open end to form the first wind gap in first wind channel, the other end of body is the blind end, in order to the shutoff first wind channel.
Compared with the prior art, the invention has the advantages and positive effects that:
in the invention, the vent hole is arranged at the side part of the first air duct, and the body is arranged at the same time to seal one end of the first air duct, so that the air transmitted between the breathing dust filter and the outside enters and exits from the side part of the first air duct, thereby adopting a mode of ventilating two ends of the first air duct compared with the prior art, when the vehicle is washed, the closed end of the body can shield a large amount of sprayed water, so that the water is not directly sprayed into the first air duct, meanwhile, the first air duct realizes normal air exchange with the outside through the vent hole, so the invention effectively solves the technical problem that water flow or water drops are easy to enter the breathing dust filter in the prior art, and then showing the inside water that has reduced and entered into the breathing dust filter, improved the waterproof performance of breathing the dust filter, and then more alleviateed the interference that causes the normal use of basic brake equipment's inside spare part.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
in the above figures: 1. a ventilator body; 2. a dust filter screen; 3. a retainer ring;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic perspective view of the body of FIG. 2;
FIG. 4 is a schematic view of the outer structure of the protective cover of FIG. 2;
in the above figures: 10. a body; 11. a first air duct; 12. a vent hole; 13. a connecting portion; 14. a head portion; 20. a protective sleeve; 21. a second air duct; 22. a second tuyere; 23. a sleeve portion; 24. a barrel portion; 30. a gasket; 40. a filter assembly; 41. a dust filter screen; 42. a filter element; 43. a retainer ring; 50. a substrate.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The embodiment of the invention provides a breathing dust filter and a basic brake device, solves the technical problem that water flow or water drops easily enter the breathing dust filter in the prior art, reduces water entering the breathing dust filter, and improves the waterproof performance of the breathing dust filter.
Specifically, because the vent hole is arranged at the side part of the first air duct, and the body is arranged to close one end of the first air duct, so that the air transmitted between the breathing dust filter and the outside enters and exits from the side part of the first air duct, thereby adopting a mode of ventilating two ends of the first air duct compared with the prior art, when the vehicle is washed, the closed end of the body can shield a large amount of sprayed water, so that the water is not directly sprayed into the first air duct, meanwhile, the first air duct realizes normal air exchange with the outside through the vent hole, so the invention effectively solves the technical problem that water flow or water drops are easy to enter the breathing dust filter in the prior art, and then showing the inside water that has reduced and entered into the breathing dust filter, improved the waterproof performance of breathing the dust filter, and then more alleviateed the interference that causes the normal use of basic brake equipment's inside spare part.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Referring to fig. 2 and 3, a respiratory filter comprising:
the brake device comprises a body 10, wherein a first air duct 11 is formed inside the body 10 so as to realize ventilation between the body 10 and a cavity of a basic brake device when in use, a vent hole 12 is formed on the side wall of the first air duct 11, the vent hole 12 penetrates through the body 10 so as to realize air circulation between the body 10 and the outside, one end of the body 10 is an open end along the extending direction of the first air duct 11 so as to form a first air port of the first air duct 11, the open end is used for being fixedly connected with a base body of the basic brake device, and the other end of the body 10 is a closed end so as to seal the first air duct 11;
specifically, the body 10 may be T-shaped, for example, as shown in fig. 2 and 3, the body 10 may be screw-shaped, the body 10 includes a connecting portion 13 and a head portion 14, the connecting portion 13 is preferably circular stepped shaft-shaped, the connecting portion 13 has a small-size shaft and a large-size shaft, one end of the connecting portion 13 is an open end of the body 10, the other end of the connecting portion 13 is located on the large-size shaft and is preferably integrally formed with the head portion 14, so that the connecting portion 13 and the head portion 14 have a stable connecting relationship, the first air duct 11 has a cross section perpendicular to an extending direction thereof, the cross section of the first air duct 11 may be circular, rectangular or the like, the first air duct 11 penetrates the connecting portion 13 in an axial direction of the connecting portion 13, the head portion 14 is preferably cylindrical block-shaped, the head portion 14 is coaxial with the connecting portion 13, the head part 14 is hermetically connected with the large-size shaft of the connecting part 13 to block the first air duct 11, so as to prevent water from directly entering the interior of the first air duct 11 from the end part of the first air duct 11, at this time, the closed end of the body 10 is located on the head part 14, the vent hole 12 is opened on the large-size shaft of the connecting part 13, the vent hole 12 penetrates through the connecting part 13 from the side wall of the first air duct 11 along the radial direction of the connecting part 13, so that wind enters the interior of the first air duct 11 from the side part of the connecting part 13 through the vent hole 12;
in addition, an external thread is formed on the outer circumferential surface of the small-sized shaft of the connecting portion 13, so that the respiratory dust filter of the present invention is fixed on the base body of the basic brake device in a threaded connection manner during use.
Based on the above, the invention has at least the following technical effects:
according to the respiratory dust filter, the vent hole 12 is arranged at the side part of the first air duct 11, and the body 10 is arranged to close one end of the first air duct 11, so that air transmitted between the respiratory dust filter and the outside enters and exits from the side part of the first air duct 11, compared with the prior art, a mode of ventilating two ends of the first air duct 11 is adopted, under the condition of washing a vehicle and the like, the closed end of the body can shield a large amount of sprayed water, so that the water cannot be directly sprayed into the first air duct 11, and meanwhile, the first air duct 11 realizes normal air exchange with the outside through the vent hole 12, so that the technical problem that water flow or water drops easily enter the interior of the respiratory dust filter in the prior art is effectively solved, the water entering the interior of the respiratory dust filter is remarkably reduced, and the waterproof performance of the respiratory dust filter is improved, and further reduces the interference caused by the normal use of the internal parts of the foundation brake device.
Since a small amount of water passes over the closed end of the body 10 or directly falls into the vent hole 12 during the washing process of the vehicle, and enters the inside of the first duct 11 along the vent hole 12 by its own weight, the present invention also provides the following concept:
referring to fig. 2, there is at least one of the ventilation holes 12, which is formed in the outer wall of the body 10 with its opening facing vertically downward;
specifically, as shown in fig. 2, the vent hole 12 extends downward from the first channel 11 in a vertical direction and penetrates through the body 10;
in addition, the vent hole 12 may also extend from the first passage 11 through the body 10 along a curve that is tangential to the vertical near the end of the outer wall of the body 10.
Based on the above, the invention has at least the following technical effects:
according to the breathing dust filter, the vent hole 12 is formed in the outer wall of the body 10, the opening is vertically downward, so that even a small amount of water passes over the closed end of the body 10 or directly falls into the vent hole 12 in the washing process of a vehicle, the water flows out below the vent hole 12 under the influence of the self gravity and cannot enter the first air channel 11 through the vent hole 12, so that less water enters a cavity of a basic braking device through the first air channel 11 in the use process, and the normal operation of elements in the cavity of the basic braking device is further effectively guaranteed.
In order to improve the air inlet and outlet quantity of the breathing dust filter and ensure that more air can be supplied in the working process of the basic brake device, the invention also provides the following conception:
referring to fig. 2 and 3, the number of the vent holes 12 is multiple, the first air duct 11 has a cross section perpendicular to the extending direction of the first air duct, and the multiple vent holes 12 are arranged at intervals along the contour direction of the cross section of the first air duct 11;
specifically, as shown in fig. 2 and 3, the cross section of the first air duct 11 is circular, in this case, the cross-sectional profile of the first air duct 11 is circular, and the plurality of vent holes 12 are arrayed along the circular direction, that is, the distance between any two adjacent vent holes 12 is a constant value along the circular direction;
in addition, the positions of the plurality of vent holes 12 may be: all the ventilation holes 12 are located in the lower portion of the body 10, so that most of water reaching the ventilation holes 12 falls downward under the influence of gravity of the body 10 along the outer wall of the body 10, and therefore, when a large ventilation amount is ensured, less water can enter the inside of the first air duct 11 through the ventilation holes 12.
Based on the above, the invention has at least the following technical effects:
according to the breathing dust filter, the plurality of the vent holes 12 are arranged, so that external wind can enter the first air channel 11 through the vent holes 12, the ventilation area is increased, the ventilation quantity is increased, and more wind can be supplied in the working process of the basic braking device.
Due to the presence of the ventilation hole 12, there may also be some water entering through the ventilation hole 12 into the interior of the first air duct 11, especially in rainy weather or the like, some water may enter directly into the ventilation hole 12, and then water enters through the first air duct 11 into the interior of the foundation brake chamber, and therefore, the present invention also provides the following idea:
referring to fig. 2 and 4, the respiratory dust filter further comprises:
the protective sleeve 20 is sleeved outside the body 10, and the protective sleeve 20 is sleeved outside the body 10;
a second air duct 21 is formed between the protecting sleeve 20 and the body 10, and the protecting sleeve 20 is covered outside the ventilation hole 12 to shield the ventilation hole 12 and enable the second air duct 21 to be communicated with the ventilation hole 12;
the protective sleeve 20 is provided with a second air opening 22 to realize air inlet and outlet of the second air duct 21;
specifically, as shown in fig. 2 and 4, the protecting jacket 20 includes a sleeve portion 23, the sleeve portion 23 is preferably in a ring shape, so that after the sleeve portion 23 is sleeved on the outer portion of the body 10, the sleeve portion 23 can be conveniently rotated on the body 10 to be adjusted to a desired position, thereby facilitating improvement of installation efficiency, the inner portion of the sleeve portion 23 is hollow, an inner circumferential end portion of the sleeve portion 23 is formed with an annular opening, similar to a tire, the sleeve portion 23 is sleeved on the outer portion of a large-sized shaft of the connecting portion 13 to cover the vent hole 12, so that the vent hole 12 cannot be directly communicated with outside air, an inner circumferential end of the sleeve portion 23 is in contact with an outer wall of the body 10 to prevent water from entering into the inner portion of the sleeve portion 23 from between the sleeve portion 23 and the body 10, the sleeve portion 23 is sleeved on the body 10 to form the second air duct 21, at this time, the second air duct 21 is annular, the second air opening 22 is communicated with the second air duct 21, so that air circulates among the second air opening 22, the second air duct 21, the vent hole 12 and the first air duct 11, the second air opening 22 is preferably arranged vertically downwards, so that when a small amount of water crosses the closed end of the body 10 or directly falls into the second air opening 22, the water flows out below the second air opening 22 under the influence of self gravity and cannot enter the second air duct 21 through the second air opening 22 and enter the chamber of the basic brake device through the second air duct 21, the vent hole 12 and the first air duct 11, thereby more effectively ensuring the normal operation of the internal elements of the chamber of the basic brake device, and a gasket 30 is sleeved outside the small-sized shaft of the connecting portion 13, the washer 30 is used for limiting the sleeve portion 23, the washer 30 is preferably a butterfly washer, so as to press the sleeve portion 23 in real time, thereby ensuring stable limiting of the sleeve portion 23, and two sides of the sleeve portion 23 are respectively in contact with the washer 30 and the head portion 14, so as to restrict the freedom of movement of the sleeve portion 23 along the axial direction of the connecting portion 13;
in addition, the sleeve portion 23 may be an elastic sleeve, for example, a rubber sleeve, or the like, or may be a rigid sleeve, such as a metal sleeve, etc., in order to allow the protective sleeve 20 to be efficiently coupled to the body 10, while improving the tightness of the connection between the protective cover 20 and the body 10, preferably, as shown in fig. 2, the sleeve portion 23 is an elastic sleeve, the sleeve portion 23 is preferably a rubber sleeve, because the sleeve part 23 has elastic deformation characteristics, the installation requirements of the body 10 with different sizes can be effectively adapted, and after the sleeve part 23 is sleeved outside the body 10, under the elastic action, the inner circumferential end of the sleeve part 23 is in pressure contact with the outer wall of the body 10, thereby improving the sealing property of the connection between the protective sleeve 20 and the body 10, and thus, external water is better prevented from entering the interior of the second channel 21 from the joint of the protection sleeve 20 and the body 10.
Based on the above, the invention has at least the following technical effects:
the respiratory dust filter of the present invention is formed by sleeving the protective sleeve 20 on the outside of the body 10 to form the second channel 21, and the second air opening 22 is provided to ensure the second channel 21 to communicate with the outside air, and at the same time, the protection cover 20 covers the outside of the ventilation hole 12, so that the vent hole 12 is not directly communicated with the outside but communicated with the outside through the second passage 21 and the second tuyere 22, and then in the case that the vehicle is washed and special weather is encountered, etc., the breathing dust filter is able to vent normally, and even if some water passes over the closed end of the body 10, or falls directly toward the ventilation holes 12, is blocked by the shield 20 from entering the inside of the ventilation holes 12, the water quantity entering the first air duct 11 from the vent hole 12 is further reduced, and the normal operation of the internal components of the chamber of the foundation brake device is more effectively ensured.
The second air opening 22 may be formed directly on the sleeve portion 23, and at this time, since water directly enters into the second air duct 21 when part of water passes through the second air opening 22, and thus easily enters into the first air duct 11 from the air vent 12, the present invention further provides the following concept:
referring to fig. 2 and 4, the protective sleeve 20 further comprises:
a cylindrical portion 24, the cylindrical portion 24 being fixedly disposed on one side of the sleeve portion, one end of the cylindrical portion 24 being formed with the second air port 22, and the other end of the cylindrical portion 24 being communicated with the second air duct 21;
specifically, as shown in fig. 2 and 4, the cylindrical portion 24 is preferably hollow and cylindrical, the cylindrical portion 24 and the sleeve portion 23 are preferably integrally molded to improve the overall stability of the protection cover 20, and the cylindrical portion 24 is preferably located below the sleeve portion 23 and extends downward to enable the second tuyere 22 to face downward vertically.
Based on the above, the invention has at least the following technical effects:
according to the respiratory dust filter, the cylindrical part 24 is arranged on the basis of the sleeve part 23, so that air is transmitted between the second air port 22 and the second air channel 21 through the cylindrical part 24, when part of external water is emitted to the second air port 22, on one hand, the cylindrical part 24 can block the external water, and on the other hand, the water entering the second air port 22 consumes more kinetic energy in the cylindrical part 24, so that the water is difficult to reach the inside of the second air channel 21, the external water is effectively prevented from directly entering the inside of the second air channel 21, the difficulty of the external water entering the inside of a basic brake device cavity is increased, and the normal operation of internal elements of the basic brake device cavity is more effectively ensured.
In order to improve the dust filtering effect, the invention also provides the following conception:
referring to fig. 2, the respiratory dust filter further includes a filter assembly 40, the filter assembly 40 is disposed inside the first air duct 11 to filter the air entering and exiting the ventilation hole 12, and the filter assembly 40 includes:
the dust filter 41 is sleeved inside the first air duct;
a filter element 42, one end of which is in contact with the dust filter 41 to limit the movement along the axial direction of the first air duct 11, and the other end of which 42 is disposed at the vent hole 12 to directly receive the air flowing out from the vent hole 12;
specifically, as shown in fig. 2, the filter assembly 40 further includes a retainer ring 43, the dust filter 41 is sleeved in the first air duct 11, the inner wall of the first air duct 11 is stepped, one side surface of the dust filter 41 is in contact with the inner wall of the first air duct 11, the other side surface of the dust filter 41 is in contact with the retainer ring 43, the retainer ring 43 is clamped in the first air duct 11 to restrain the freedom of movement of the dust filter 41 along the axial direction of the first air duct 11, the outer peripheral surface of the dust filter 41 is in contact with the inner wall of the first air duct 11 to restrain the freedom of movement of the dust filter 41 along the radial direction of the first air duct 11, so as to prevent the dust filter 41 from shaking in the first air duct 11, the filter element 42 is preferably cylindrical, and the filter element 42 is preferably made of filter cotton.
Based on the above, the invention has at least the following technical effects:
according to the respiratory dust filter, the filter element 42 is arranged on the basis of the dust filter screen 41, so that the air entering and exiting the first air channel 11 is filtered by the dust filter screen 41 and the filter element 42, and compared with a mode of only arranging the filter screen 41, the respiratory dust filter can more effectively filter dust in the air, and further improves the filtering efficiency.
Referring to fig. 2, the present invention also provides a foundation brake device including:
the base body 50 is used as a supporting part of the foundation brake device and plays a role of foundation support;
the specific structure of the breathing dust filter refers to the above embodiments, and since the basic brake device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not repeated here, the open end of the body 10 is fixedly connected with the base 50, for example, as shown in fig. 2, the body 10 is fixedly connected with the base 50 in a threaded connection manner, so that the breathing dust filter can be conveniently disassembled and assembled, and the breathing dust filter can be conveniently replaced in time.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
1. because the ventilation hole 12 is arranged at the side part of the first air duct 11 and the body 10 is arranged to close one end of the first air duct 11, so that air transmitted between the breathing dust filter and the outside enters and exits from the side part of the first air duct 11, compared with the prior art that the two ends of the first air duct 11 are ventilated, under the condition of washing vehicles and the like, the closed end of the body can shield a large amount of sprayed water, so that the water cannot be directly sprayed into the first air duct 11, and the first air duct 11 realizes normal air exchange with the outside through the ventilation hole 12, the technical problem that water flow or water drops easily enter the breathing dust filter in the prior art is effectively solved, the water entering the breathing dust filter is obviously reduced, and the waterproof performance of the breathing dust filter is improved, and further reduces the interference caused by the normal use of the internal parts of the foundation brake device.
2. Because the ventilation hole 12 is formed in the opening of the outer wall of the body 10 is vertical downward, in the process of washing the vehicle, even if a small amount of water crosses the closed end of the body 10 or directly falls into the ventilation hole 12, the water flows out below the ventilation hole 12 under the influence of self gravity and cannot enter the inside of the first air duct 11 through the ventilation hole 12, so that in the using process, less water enters the chamber of the basic brake device through the first air duct 11, and the normal operation of the internal elements of the chamber of the basic brake device is effectively ensured.
3. Through with ventilation hole 12 sets up to a plurality ofly for external wind can enter into through a plurality of ventilation holes 12 the inside of first wind channel 11 has improved the area of ventilating, and then has improved the air volume, makes the supply that can obtain more wind in the basic brake device working process.
4. By sleeving the protective sleeve 20 on the outside of the body 10, so as to form the second passage 21, and the second air opening 22 is provided to ensure the second channel 21 to communicate with the outside air, and at the same time, the protection cover 20 covers the outside of the ventilation hole 12, so that the vent hole 12 is not directly communicated with the outside but communicated with the outside through the second passage 21 and the second tuyere 22, and then in the case that the vehicle is washed and special weather is encountered, etc., the breathing dust filter is able to vent normally, and even if some water passes over the closed end of the body 10, or falls directly toward the ventilation holes 12, is blocked by the shield 20 from entering the inside of the ventilation holes 12, the water quantity entering the first air duct 11 from the vent hole 12 is further reduced, and the normal operation of the internal components of the chamber of the foundation brake device is more effectively ensured.
5. Because the sleeve portion 23 has an elastic deformation characteristic, the mounting requirements of the body 10 with different sizes can be efficiently adapted, and simultaneously, after the sleeve portion 23 is sleeved outside the body 10, under the elastic action, the inner circumferential end of the sleeve portion 23 is in pressure contact with the outer wall of the body 10, so that the sealing property of the connection between the protective sleeve 20 and the body 10 is improved, and further, external water is better prevented from entering the second channel 21 from the connection position of the protective sleeve 20 and the body 10.
6. The cylindrical part 24 is arranged on the basis of the sleeve part 23, so that air is transmitted between the second air port 22 and the second air channel 21 through the cylindrical part 24, when part of outside water is shot to the second air port 22, on one hand, the cylindrical part 24 can play a role of blocking the outside water, and on the other hand, the water entering the second air port 22 consumes more kinetic energy in the cylindrical part 24, so that the water is difficult to reach the inside of the second air channel 21, the outside water is effectively prevented from directly entering the inside of the second air channel 21, the difficulty of the outside water entering the inside of a cavity of a basic brake device is increased, and the normal operation of elements in the cavity of the basic brake device is more effectively ensured.
7. Through set up on the basis of straining dirt net 41 filter element 42 makes the business turn over the wind in first wind channel 11 all receives strain dirt net 41 reaches filter element 42's filtration compares and only sets up the mode of filter screen 41 can more effectually filter the dust in the wind, and then has improved filtration efficiency.
8. Through setting up second wind gap 22 sets up to vertical setting down to this crosses as a small amount of water the blind end of body 10, perhaps directly falls into during second wind gap 22 department, water under the influence of self gravity, to the below outflow of second wind gap 22, and can not enter into through second wind gap 22 second wind channel 21, and the process second wind channel 21 the ventilation hole 12 reaches inside first wind channel 11 gets into to basic brake's cavity, and then more effectual normal operating who guarantees basic brake's cavity inner member.
Claims (9)
1. A respiratory dust filter, comprising:
the air inlet structure comprises a body, wherein a first air channel is formed inside the body, a vent hole is formed in the side wall of the first air channel, the vent hole penetrates through the body, one end of the body is an open end in the extending direction of the first air channel so as to form a first air port of the first air channel, and the other end of the body is a closed end so as to plug the first air channel;
the respiratory dust filter further comprises:
the protective sleeve is sleeved outside the body and is in pressure contact with the body;
a second air channel is formed between the protective sleeve and the body, and the protective sleeve is arranged outside the ventilation hole to shield the ventilation hole and enable the second air channel to be communicated with the ventilation hole;
the protective sleeve is provided with a second air port so as to realize air inlet and outlet of the second air channel.
2. The respiratory filter of claim 1 wherein there is at least one of said vents having an opening formed in an outer wall of said body facing vertically downward.
3. The respiratory dust filter according to claim 1, wherein the number of the vent holes is plural, the first air channel has a cross section perpendicular to an extending direction of the first air channel, and the plural vent holes are arranged at intervals along a contour direction of the cross section of the first air channel.
4. The respiratory dust filter of claim 1, wherein the second air port is directed vertically downward.
5. The respiratory filter of claim 1, wherein the protective sheath comprises:
the sleeve part is sleeved outside the body, and the second air duct is formed between the sleeve part and the body;
the barrel part is fixedly arranged on one side of the sleeve part, the second air port is formed at one end of the barrel part, and the other end of the barrel part is communicated with the second air channel.
6. The respiratory dust filter of claim 5, wherein the second air port is directed vertically downward.
7. The respiratory filter of claim 1, wherein the protective sheath is an elastic sheath.
8. The respiratory filter of claim 1, further comprising:
a filter assembly, the filter assembly set up in the inside in first wind channel to filter the business turn over the wind in ventilation hole, the filter assembly includes:
the dust filter screen is sleeved inside the first air duct;
and one end of the filter element is in contact with the dust filter screen, and the other end of the filter element is arranged at the vent hole.
9. A foundation brake assembly, comprising:
a substrate;
the breathing dust filter is as claimed in any one of claims 1 to 8, and the open end of the body is fixedly connected with the base body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284706.XA CN109291905B (en) | 2018-10-31 | 2018-10-31 | Breathing dust filter and foundation brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284706.XA CN109291905B (en) | 2018-10-31 | 2018-10-31 | Breathing dust filter and foundation brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109291905A CN109291905A (en) | 2019-02-01 |
| CN109291905B true CN109291905B (en) | 2020-01-07 |
Family
ID=65145260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811284706.XA Active CN109291905B (en) | 2018-10-31 | 2018-10-31 | Breathing dust filter and foundation brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109291905B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2913722Y (en) * | 2006-06-12 | 2007-06-20 | 万安集团有限公司 | Breathing apparatus for spring brake cylinder |
| PL63633Y1 (en) * | 2005-04-29 | 2008-02-29 | Inst Pojazdow Szynowych Tabor | Breather valve, particularly for the brake system ball cock |
| CN202169941U (en) * | 2011-07-13 | 2012-03-21 | 泰安众志汽车零部件有限公司 | Internal breathing valve for spring braking air chamber |
| CN105003493A (en) * | 2015-07-13 | 2015-10-28 | 青岛四方车辆研究所有限公司 | Ventilation plug for hydraulic braking unit oil tank of tramcar |
| CN207203663U (en) * | 2017-08-03 | 2018-04-10 | 中车唐山机车车辆有限公司 | A kind of water treatment plant and train |
-
2018
- 2018-10-31 CN CN201811284706.XA patent/CN109291905B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL63633Y1 (en) * | 2005-04-29 | 2008-02-29 | Inst Pojazdow Szynowych Tabor | Breather valve, particularly for the brake system ball cock |
| CN2913722Y (en) * | 2006-06-12 | 2007-06-20 | 万安集团有限公司 | Breathing apparatus for spring brake cylinder |
| CN202169941U (en) * | 2011-07-13 | 2012-03-21 | 泰安众志汽车零部件有限公司 | Internal breathing valve for spring braking air chamber |
| CN105003493A (en) * | 2015-07-13 | 2015-10-28 | 青岛四方车辆研究所有限公司 | Ventilation plug for hydraulic braking unit oil tank of tramcar |
| CN207203663U (en) * | 2017-08-03 | 2018-04-10 | 中车唐山机车车辆有限公司 | A kind of water treatment plant and train |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109291905A (en) | 2019-02-01 |
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