Vehicle cab pressure reducing valve and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a vehicle cab pressure reducing valve which comprises a valve body and a sealing strip, an air outlet channel is arranged inside the valve body in a surrounding mode, the valve body is provided with an opening communicated with the air channel, a first water leakage portion is arranged at the bottom of the valve body, and the sealing strip is arranged outside the valve body in a surrounding mode. And a second water leakage part corresponding to the first water leakage part is arranged at the bottom of the sealing strip. Compared with a traditional pressure reducing valve which needs to be additionally provided with a drainage structure for passive drainage, the pressure reducing valve has the advantages that rainwater entering the air duct inside the valve body can be rapidly drained, the drainage capacity of the pressure reducing valve is improved, interior pollution and metal plate corrosion caused by rainwater entering a cab are reduced, and the risk that rainwater leaks into the cab is reduced; the ventilation performance of the pressure reducing valve is improved, the size is optimized, and meanwhile the sealing performance of a cab is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle cab pressure reducing valve and a vehicle. Background Art

[0002] When the vehicle door is closed, there is a sudden increase in air pressure inside the cab, which will cause a strong ear-shaking discomfort to the occupants, and will also increase the force of closing the door, affecting the driving quality of the vehicle. With the development of vehicle technology, the air tightness of the cab has been greatly improved, and the above-mentioned problems have become more prominent. At present, most OEMs adopt the technical solution of opening a sheet metal opening at the rear of the vehicle cab and installing a pressure reducing valve. Increasing the ventilation cross-sectional area of ​​the pressure reducing valve grille and expanding the ventilation area of ​​the valve plate can improve the ventilation performance of the pressure reducing valve, but it will make it easier for rain to enter the inner cavity of the pressure reducing valve, and will reduce the drainage capacity of the pressure reducing valve, increase the risk of water seepage into the interior of the cab causing interior pollution and sheet metal rust, and restrict the performance improvement of the pressure reducing valve. Utility Model Content

[0003] The utility model provides a vehicle cab pressure reducing valve and a vehicle, which are used to solve one of the defects in the prior art, discharge rainwater entering the air duct inside the valve body more quickly, improve the drainage capacity of the pressure reducing valve, reduce the pollution of interior decoration and sheet metal corrosion caused by rainwater entering the cab, and reduce the risk of rain leakage into the cab.

[0004] The utility model provides a vehicle cab pressure reducing valve, comprising a valve body and a sealing strip, wherein an air outlet duct is enclosed inside the valve body, the valve body is provided with an opening connected to the air duct, a first water leakage portion is provided at the bottom of the valve body, the sealing strip is enclosed outside the valve body, and a second water leakage portion corresponding to the first water leakage portion is provided at the bottom of the sealing strip.

[0005] According to a vehicle cab pressure reducing valve provided by the utility model, the valve body includes a valve body and a grille plate, the valve body is provided with an opening, the grille plate covers the opening to enclose the air duct, and the grille plate forms the opening.

[0006] According to a vehicle cab pressure reducing valve provided by the utility model, a first water guide groove is provided at the bottom of the valve body, a second water guide groove is provided at the bottom of the grille plate, and the second water guide groove is arranged opposite to the first water guide groove and cooperates to form the first water leakage part.

[0007] According to a vehicle cab pressure reducing valve provided by the utility model, the width of the first water guide groove is at least 15 mm.

[0008] According to a vehicle cab pressure reducing valve provided by the utility model, the valve body includes a mounting plate, a shell and a valve plate, the valve plate is detachably arranged on the shell, the shell encloses the air duct, the mounting plate is arranged on the other side of the shell, the mounting plate encloses the opening, the first water guide groove is arranged at the bottom of the shell, and the mounting plate is connected to the grille plate by a clamping portion.

[0009] According to a vehicle cab pressure reducing valve provided by the utility model, the extension direction of the air duct in the shell forms an angle of 65° to 90° with the mounting plate.

[0010] According to a vehicle cab pressure reducing valve provided by the utility model, the grille plate includes a grille body and an outer frame, the grille body is arranged inside the outer frame, the grille body constructs the opening, and the outer frame is connected to the mounting plate through the clamping portion.

[0011] According to a vehicle cab pressure reducing valve provided by the utility model, the sealing strip includes a sealing ring and a skirt, the sealing ring surrounds the mounting plate and the outer frame, the skirt is arranged on a side of the sealing ring close to the valve plate, and the second water leakage part is arranged at the bottom of the sealing ring.

[0012] According to a vehicle cab pressure reducing valve provided by the utility model, the second water leakage portion is a plurality of drainage holes, and the plurality of drainage holes are evenly distributed along the width direction of the first water leakage portion.

[0013] The utility model also provides a vehicle, comprising the vehicle cab pressure reducing valve as described above.

[0014] The utility model provides a vehicle cab pressure reducing valve, a valve body serving as the main structure of the pressure reducing valve, an air duct being constructed internally, an opening being arranged on a side of the valve body communicating with the cab, and the opening being communicated with the air duct, so that when the door is closed, the gas inside the cab can enter the air duct through the opening, and the pressure is reduced through the valve body, a sealing strip is wrapped around the outer side of the valve body, and the valve body serves as a combined structure, and the sealing strip can effectively seal the joints of the combined structure, so as to prevent impurities from the external environment from entering the interior of the valve body.

[0015] A first water leakage part is arranged at the bottom of the valve body, and a second water leakage part is arranged at the bottom of the sealing strip. The second water leakage part is arranged opposite to the first water leakage part and is correspondingly connected. The water entering the air duct will naturally gather to the first water leakage part at the bottom of the valve body under the action of gravity, be discharged from the inside of the valve body through the first water leakage part, and then be completely discharged to the outside of the pressure reducing valve through the second water leakage part.

[0016] The utility model improves the structure of the pressure reducing valve itself to form a first leaking part and a second leaking part as a rain guiding and drainage structure. Compared with the traditional pressure reducing valve which needs to add a drainage structure for passive drainage, the utility model can discharge rainwater entering the air duct inside the valve body more quickly, thereby improving the drainage capacity of the pressure reducing valve, reducing the pollution of interior decoration and sheet metal corrosion caused by rainwater entering the cab, reducing the risk of rain leakage into the cab, and achieving the improvement of the ventilation performance and size optimization of the pressure reducing valve while maintaining the sealing of the cab.

[0017] In addition to the technical problems solved by the utility model, the technical features of the technical solutions constituted, and the advantages brought about by the technical features of these technical solutions described above, other technical features of the utility model and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a vehicle cab pressure reducing valve provided by an embodiment of the utility model;

[0020] Figure 2 It is an exploded view of a vehicle cab pressure reducing valve provided by an embodiment of the utility model;

[0021] Figure 3 is a cross-sectional view of a vehicle cab pressure reducing valve provided by an embodiment of the utility model;

[0022] Figure 4 It is a bottom view of the valve body of the vehicle cab pressure reducing valve provided by an embodiment of the utility model;

[0023] Figure 5 It is a bottom view of a grille plate of a vehicle cab pressure reducing valve provided by an embodiment of the utility model;

[0024] Figure 6 It is a bottom view of a sealing strip of a vehicle cab pressure reducing valve provided by an embodiment of the utility model;

[0025] Figure 7 It is a partial structural schematic diagram of a grille plate of a vehicle cab pressure reducing valve provided by an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100, valve body; 110, air duct; 120, open; 130, first water leakage part; 140, valve body; 141, opening; 142, first water guide groove; 143, mounting plate; 144, housing; 145, valve plate; 150, grille plate; 151, second water guide groove; 152, grille body; 153, outer frame;

[0028] 200, sealing strip; 210, second water leakage part; 211, drainage hole; 220, sealing ring; 230, skirt;

[0029] 300, snap-fitting portion; 310, snap-fitting groove; 320, snap-fitting block. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0031] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In addition, in the description of the embodiments of the present utility model, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more, and "several", "several roots", and "several groups" mean one or more.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the vehicle cab pressure reducing valve provided by the embodiment of the utility model includes a valve body 100 and a sealing strip 200, an air outlet duct 110 is enclosed inside the valve body 100, the valve body 100 is provided with an opening 120 connected to the air duct 110, a first water leakage portion 130 is provided at the bottom of the valve body 100, the sealing strip 200 is enclosed on the outside of the valve body 100, and a second water leakage portion 210 corresponding to the first water leakage portion 130 is provided at the bottom of the sealing strip 200.

[0037] In the vehicle cab pressure reducing valve of the embodiment of the utility model, the valve body 100 serves as the main structure of the pressure reducing valve, and an air duct 110 is constructed internally. An opening 120 is provided on the side of the valve body 100 connected to the cab, and the opening 120 is connected to the air duct 110. When the door is closed, the gas inside the cab can enter the air duct 110 through the opening 120, and the pressure is reduced by the valve body 100. The sealing strip 200 is wrapped around the outside of the valve body 100. The valve body 100 serves as a combined structure, and the sealing strip 200 can effectively seal the joints of the combined structure to prevent impurities from the external environment from entering the interior of the valve body 100.

[0038] A first water leakage portion 130 is arranged at the bottom of the valve body 100, and a second water leakage portion 210 is arranged at the bottom of the sealing strip 200. The second water leakage portion 210 is arranged opposite to the first water leakage portion 130 and are correspondingly connected. Water entering the air duct 110 will naturally gather to the first water leakage portion 130 at the bottom of the valve body 100 under the action of gravity, and will be discharged from the inside of the valve body 100 through the first water leakage portion 130, and will then be completely discharged to the outside of the pressure reducing valve through the second water leakage portion 210.

[0039] The utility model improves the structure of the pressure reducing valve itself to form a first leaking part 130 and a second leaking part 210 as a rain guiding and drainage structure. Compared with the traditional pressure reducing valve which needs to add a drainage structure for passive drainage, the utility model can discharge rainwater entering the air duct 110 inside the valve body 100 more quickly, thereby improving the drainage capacity of the pressure reducing valve, reducing the pollution of interior decoration and sheet metal corrosion caused by rainwater entering the cab, and reducing the risk of rain leakage into the cab, thereby improving the ventilation performance and optimizing the size of the pressure reducing valve while maintaining the sealing of the cab.

[0040] According to an embodiment provided by the utility model, the valve body 100 includes a valve body 140 and a grille plate 150. The valve body 140 is provided with an opening 141. The grille plate 150 covers the opening 141 to enclose the air outlet 110. The grille plate 150 forms an opening 120. In this embodiment, the valve body 100 is composed of the valve body 140 and the grille plate 150. The valve body 140 is a rectangular body as a whole, with a cavity inside and an opening 141 on one side. The grille plate 150 covers the opening 141, and the cavity is enclosed into the air duct 110 by the valve body 140. The grille plate 150 is formed with regularly arranged hollow holes, thereby forming the opening 120 of the valve body 100. The grille plate 150 can divert and reduce noise for the airflow entering the air duct 110, ensuring that the pressure is reduced while reducing pressure, and can further play a silent effect to avoid noise from the pressure reducing valve.

[0041] In this embodiment, the valve body 140 and the grid plate 150 are made of an integral injection-molded material.

[0042] According to an embodiment provided by the utility model, a first water guide groove 142 is provided at the bottom of the valve body 140, and a second water guide groove 151 is provided at the bottom of the grid plate 150. The second water guide groove 151 is arranged opposite to the first water guide groove 142 and cooperates to form a first water leakage part 130. In this embodiment, the bottom of the valve body 140 is sunken to form the first water guide groove 142, which plays a role in guiding rainwater. After the grid plate 150 is aligned and connected with the opening 141 of the valve body 140, the position of the first water guide groove 142 is concave to form the second water guide groove 151, which is conducive to reducing water accumulation and leakage, so that the first water guide groove 142 and the second water guide groove 151 are combined to construct the first water leakage part 130.

[0043] In this embodiment, the second water guide groove 151 is formed in a leaking form, that is, the first water guide groove 142 guides the water in the air duct 110 to flow into the second water guide groove 151, and then flows from the second water guide groove 151 into the second leaking part 210 to discharge the water to the outside of the pressure reducing valve. It is used to guide the water flow guided by the first water guide groove 142 downward and discharge it. Compared with the existing design in which rainwater can only be discharged through the grille, the drainage capacity of the pressure reducing valve is improved.

[0044] According to an embodiment of the present invention, the width of the first water guide groove 142 is at least 15 mm. In this embodiment, the first water guide groove 142 is formed by the bottom inner side of the shell 144 being concave downward, and the width of the concave is at least 15 mm. The shape of the second water guide groove 151 is a long strip or a circle, and its extension range corresponds to the first water guide groove 142 and is not less than 15 mm.

[0045] In this embodiment, the width range of the first water guide groove 142 is ensured to fully guide the water in the valve body 140 .

[0046] like Figure 4 As shown, according to an embodiment provided by the utility model, the valve body 140 includes a mounting plate 143, a shell 144 and a valve plate 145, the valve plate 145 is detachably arranged on the shell 144, the shell 144 surrounds the air outlet 110, the mounting plate 143 is arranged on the other side of the shell 144, the mounting plate 143 surrounds an opening 141, the bottom of the shell 144 is provided with a first water guide groove 142, and the mounting plate 143 is connected to the grille plate 150 through a clamping portion 300.

[0047] In this embodiment, the valve body 140 is composed of a valve plate 145, a mounting plate 143 and a housing 144. The mounting plate 143 is annular and has an opening 141. The housing 144 is also annular, with one end connected to the mounting plate 143 and the other end connected to the valve plate 145. The inner side surrounded by the housing 144 forms an air duct 110. The gas in the vehicle cab passes through the opening 141 and the inner side of the combined body and is discharged through the valve plate 145. The inner side of the bottom of the housing 144 is sunken to form a first water guide groove 142. The mounting grid plate 150 is corresponding in size to the mounting plate 143. The side of the mounting plate 143 away from the valve plate 145 is connected to the grid plate 150, and the grid plate 150 is connected to the mounting plate 143 through the clamping portion 300. The valve plate 145 is detachably assembled on the valve body 100, which has good maintainability.

[0048] In this embodiment, the clamping portion 300 includes a clamping groove 310 and a clamping block 320 that cooperate with each other, which are used to clamp and position the mounting plate 143 and the grille plate 150 during assembly. One of the clamping groove 310 and the clamping block 320 is set on the mounting plate 143, and the other is set on the grille plate 150.

[0049] In this embodiment, the valve plate 145 can be made of EPDM material, and the thickness of the valve plate 145 can be 0.5-1.5 mm. It is light in weight and has good opening and closing performance.

[0050] According to an embodiment provided by the utility model, the extension direction of the air duct 110 in the housing 144 forms an angle of 65° to 90° with the mounting plate 143. In this embodiment, the angle between the housing 144 and the mounting plate 143 is 65° to 90°, that is, the housing 144 is tilted on the mounting plate 143. The direction of the housing 144 from the opening 141 to the valve plate 145 is the extension direction of the air duct 110, and the angle between this extension direction and the mounting plate 143 is controlled to be 65° to 90°.

[0051] like Figure 5 and Figure 7 As shown, according to an embodiment provided by the utility model, the grille plate 150 includes a grille body 152 and an outer frame 153, the grille body 152 is arranged inside the outer frame 153, the grille body 152 has an opening 120, and the outer frame 153 is connected to the mounting plate 143 through a clamping portion 300. In this embodiment, the grille plate 150 is composed of the outer frame 153 and the grille body 152, the outer frame 153 is an annular structure, the outer contour size of the outer frame 153 is the same as that of the mounting plate 143, and the bottom of the outer frame 153 is aligned with the first water guide groove 142. The second pouring groove is arranged in the thickness direction. The grille body 152 is a strip-shaped hollow structure connected horizontally and vertically, and is arranged on the inner side of the outer frame 153.

[0052] In this embodiment, a side surface of the outer frame 153 close to the mounting plate 143 is provided with a snap-in groove 310 parallel to the outer contour direction, which is engaged with the snap-in block 320 on the mounting plate 143 during assembly to play a positioning role.

[0053] like Figure 6 As shown, according to an embodiment provided by the utility model, the sealing strip 200 includes a sealing ring 220 and a skirt 230, the sealing ring 220 surrounds the mounting plate 143 and the outer frame 153, the skirt 230 is arranged on one side of the sealing ring 220 close to the valve plate 145, and the second water leakage part 210 is arranged at the bottom of the sealing ring 220.

[0054] In this embodiment, the sealing strip 200 is composed of a skirt 230 and a sealing ring 220. After the mounting plate 143 and the outer frame 153 are clamped, the connection between the valve body 140 and the grille plate 150 is realized. The sealing ring 220 is sleeved on the outside of the mounting plate 143 and the outer frame 153, and the mounting plate 143 and the outer frame 153 are fully surrounded, showing the form that the mounting plate 143 and the outer frame 153 are embedded in the inner side of the sealing ring 220, and the housing 144 and the valve are exposed on the outside of the sealing ring 220, which further strengthens the connection and seals. The bottom of the sealing ring 220 is provided with a second leaking part 210 at a position corresponding to the second water guide groove 151, which is used to smoothly discharge the rainwater discharged from the first leaking part 130 in the valve body 100 and entering the sealing ring 220.

[0055] According to an embodiment provided by the utility model, the second water leakage part 210 is a plurality of drainage holes 211, and the plurality of drainage holes 211 are evenly distributed along the width direction of the first water leakage part 130. The drainage holes 211 are circular in shape. In this embodiment, the bottom of the sealing ring 220 and the drainage holes 211 that are aligned with the second water guide groove 151 and evenly distributed serve as the second water leakage part 210. The drainage holes 211 can ensure that water is discharged smoothly, and can also ensure that rainwater or other impurities from the outside are prevented from entering the sealing ring 220 in the reverse direction through the second water leakage part 210 to a certain extent.

[0056] An embodiment of the utility model further provides a vehicle, comprising the vehicle cab pressure reducing valve as described in the above embodiment.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A vehicle cab pressure reducing valve, characterized in that: It includes a valve body and a sealing strip, wherein an air outlet duct is enclosed inside the valve body, the valve body is provided with an opening connected to the air duct, a first water leakage part is provided at the bottom of the valve body, the sealing strip is enclosed outside the valve body, and a second water leakage part corresponding to the first water leakage part is provided at the bottom of the sealing strip.

2. The vehicle cab pressure reducing valve according to claim 1, characterized in that: The valve body comprises a valve main body and a grille plate. The valve main body is provided with an opening. The grille plate covers the opening to enclose the air duct. The grille plate forms the opening.

3. The vehicle cab pressure reducing valve according to claim 2, characterized in that: A first water guide groove is provided at the bottom of the valve body, and a second water guide groove is provided at the bottom of the grid plate. The second water guide groove is arranged opposite to the first water guide groove and cooperates with the first water leakage part.

4. The vehicle cab pressure reducing valve according to claim 3, characterized in that: The width of the first water guiding groove is at least 15 mm.

5. The vehicle cab pressure reducing valve according to claim 3, characterized in that: The valve body includes a mounting plate, a shell and a valve plate, the valve plate is detachably arranged on the shell, the shell surrounds the air duct, the mounting plate is arranged on the other side of the shell, the mounting plate surrounds the opening, the first water guide groove is arranged at the bottom of the shell, and the mounting plate is connected to the grille plate through a clamping part.

6. The vehicle cab pressure reducing valve according to claim 5, characterized in that: The extension direction of the air duct in the shell forms an angle of 65° to 90° with the mounting plate.

7. The vehicle cab pressure reducing valve according to claim 5, characterized in that: The grille plate comprises a grille body and an outer frame, wherein the grille body is arranged inside the outer frame, the grille body forms the opening, and the outer frame is connected to the mounting plate via the clamping portion.

8. The vehicle cab pressure reducing valve according to claim 7, characterized in that: The sealing strip comprises a sealing ring and a skirt, wherein the sealing ring surrounds the mounting plate and the outer frame, the skirt is arranged on a side of the sealing ring close to the valve plate, and the second water leakage portion is arranged at the bottom of the sealing ring.

9. The vehicle cab pressure reducing valve according to any one of claims 1 to 8, characterized in that: The second water leakage portion is a plurality of drainage holes, and the plurality of drainage holes are evenly distributed along the width direction of the first water leakage portion.

10. A vehicle, characterized in that: It comprises the vehicle cab pressure reducing valve as claimed in any one of claims 1 to 9.

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