CN217013642U - Exhaust pipe and pressure limiting valve assembly - Google Patents
Exhaust pipe and pressure limiting valve assembly Download PDFInfo
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- CN217013642U CN217013642U CN202121268056.7U CN202121268056U CN217013642U CN 217013642 U CN217013642 U CN 217013642U CN 202121268056 U CN202121268056 U CN 202121268056U CN 217013642 U CN217013642 U CN 217013642U
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Abstract
The utility model discloses an exhaust pipe and a pressure limiting valve assembly, which comprises an exhaust pipe body, wherein the exhaust pipe body is provided with an exhaust channel; the exhaust pipe body is provided with a slip-off prevention part which protrudes outwards relative to the exhaust pipe body. The anti-drop part is made of metal or nonmetal and is arranged on the exhaust pipe main body, or the anti-drop part and the exhaust pipe are integrally formed. The anti-drop part protrudes outwards relative to the upper end of the exhaust pipe body; and/or the anti-falling part is positioned in the middle of the exhaust pipe body; and/or the anti-falling part is a continuous or discontinuous annular bulge extending along the circumferential direction of the outer wall of the exhaust pipe body. The longitudinal section of the annular bulge is arc-shaped. The exhaust pipe has the characteristics of long service life, low manufacturing cost and convenience in processing and assembling, and in addition, the pressure limiting valve component of the exhaust pipe can prevent the pressure limiting valve from falling off when the pot cover is turned over or turned reversely, and meanwhile, a consumer can easily insert and pull out the pressure limiting valve when cleaning or installing the pressure limiting valve.
Description
Technical Field
The utility model relates to the technical field of cooking appliances, in particular to an exhaust pipe and a pressure limiting valve assembly.
Background
Cooking appliances such as steamers and pressure cookers are used more and more frequently as a kind of kitchen appliance for cooking. Most of the existing pressure cookers adopt pressure limiting valves, the pressure limiting valves are matched with exhaust ports of the pressure cookers when in use, the pressure limiting valves are used for limiting the exhaust amount to maintain the pressure required by the pressure cookers, and meanwhile, the pressure limiting valves play a role in pressure relief protection when the pressure in the cookers is overlarge;
the pressure limiting valve comprises a pressure limiting valve and an exhaust pipe, wherein the exhaust pipe is inserted into an inner hole of the pressure limiting valve, a groove for installing a clamp spring is formed in the bottom of the inner hole of the pressure limiting valve, the clamp spring is assembled in an inner groove, the clamp spring cannot fall off in the state that a pressure cooker exhausts or a cover is turned over by clamping the top of the exhaust pipe, and due to the precision requirement of the clamp spring manufacturing process and the requirement of the processing precision of the inner groove, the manufacturing cost is high, and the processing and assembling processes are complicated.
SUMMERY OF THE UTILITY MODEL
In addition, the pressure limiting valve component of the exhaust pipe can prevent the pressure limiting valve from falling off in a pot cover turning or reversing state, and is easy to insert and pull out when being cleaned or installed by consumers.
The purpose of the utility model is realized by adopting the following technical scheme:
a first aspect of the utility model provides an exhaust pipe including an exhaust pipe body having an exhaust passage; the exhaust pipe body is provided with a disengagement preventing part, and the disengagement preventing part protrudes outwards relative to the exhaust pipe body.
In the first aspect of the present invention, as an optional embodiment, the anti-slip part is made of a metal or non-metal material, so that when a metal material is adopted, the anti-slip part has certain strength, is not easy to deform and damage, and has moderate cost and simple process; the anti-falling part is arranged on the exhaust pipe body, so that the disassembly and the assembly are more convenient; or, the anti-drop part and the exhaust pipe body are integrally formed, so that the structure is simpler and the cost is lower; when adopting non-metallic material, can strengthen its elasticity and do benefit to the installation, can select more material combinations simultaneously, possess more structural feasibility.
In the first aspect of the present invention, as an alternative embodiment, the disengagement preventing portion protrudes outward with respect to the upper end of the exhaust pipe body, and when the guide portion is connected to the upper end of the exhaust pipe body, the disengagement preventing portion is ensured to protrude outward with respect to the guide portion; and/or the anti-falling part is positioned in the middle of the exhaust pipe body, so that the upper end of the exhaust pipe body is ensured to have enough length, and the guide part is convenient to manufacture; and/or, the portion of stopping taking off is for following the continuous or discontinuous annular arch that the outer wall circumference of blast pipe body extended, so, continuous annular arch has intensity height, workable, non-deformable's characteristics, and discontinuous annular arch under the prerequisite of assurance intensity, can reduce manufacturing cost, because cooperation structure size area reduces during the installation of discontinuous structure simultaneously, easily installation.
In the first aspect of the present invention, as an alternative embodiment, the longitudinal cross-sectional shape of the annular protrusion is a circular arc, so that the circular arc has a certain guiding function, and at the same time, the circular arc can better form an elastic interference fit with the pressure limiting valve, and the assembly is simpler.
In the first aspect of the present invention, as an optional embodiment, the diameter of the outer circle of the maximum cross section of the annular protrusion is 8-12mm, which is too small to be easily processed and cannot play a role of preventing detachment, and too large to be stressed, which is difficult to be taken out, and increases the cost; and/or the distance between the outermost end of the annular bulge and the exhaust pipe body is 0.3-3mm, the annular bulge is not easy to process due to undersize and cannot play a role in preventing falling off, the annular bulge is difficult to take out due to overlarge stress area, and the cost is increased.
In the first aspect of the present invention, as an alternative embodiment, the lower end of the disengagement preventing part is connected with a first guiding part, and the diameter of the first guiding part is at least partially gradually reduced, so that a guiding effect can be realized and disengagement is easy; and/or the angle between the first guide part and the exhaust pipe body in the vertical direction is 30-60 degrees, so that the guide effect can be realized and the first guide part is easy to separate; and/or the vertical height of two end points of the first guide part is 1-5mm, so that the first guide part is too small, has no guide effect, is too large, is difficult to assemble and has high cost.
In the first aspect of the present invention, as an alternative embodiment, the lower end of the drop-out preventing portion is connected to a reduced diameter portion, the diameter of the reduced diameter portion is R1, the diameter of the exhaust pipe body is R2, wherein R1 is 6-10mm, and R2: R1 is 1.1-1.5, so that the gap between the reduced diameter portion and the drop-out preventing portion is larger than the gap between the first guiding portion and the drop-out preventing portion, and when the reduced diameter portion and the stopper of the pressure limiting valve are displaced relatively, the movement between the reduced diameter portion and the stopper of the pressure limiting valve is smoother; and/or the axial length of the diameter reducing part is 5-10 mm.
In the first aspect of the present invention, as an optional embodiment, the lower end of the reduced diameter portion is connected to a limiting installation portion, a second guide portion is arranged on the upper portion of the limiting installation portion, the maximum diameter of the second guide portion is 8-12mm, and the valve body is positioned after being installed so as not to be vertically offset; and/or the angle between the second guide part and the exhaust pipe body in the vertical direction is 10-60 degrees, and the valve body is positioned after being installed so as not to be vertically deviated; and/or the minimum diameter of the second guide part is 6-10mm, and the valve body is positioned after being installed so as not to be vertically deviated.
In the first aspect of the present invention, as an alternative embodiment, the upper end of the disengagement preventing part is connected with a third guiding part, and the maximum diameter of the third guiding part is smaller than the maximum outer diameter of the disengagement preventing part, so that the guiding effect is realized and the installation is easy; and/or the axial length of the third guide part is 5-10mm, so that the valve core is reduced in size and easy to install and stabilize; and/or the upper end of the third guide part is connected with a fourth guide part; and/or the angle between the fourth guide part and the vertical direction of the exhaust pipe body is 30-60 degrees, so that a better guide effect can be realized, and the exhaust pipe is easy to install.
A second aspect of the present invention provides a pressure limiting valve assembly comprising:
the pressure limiting valve comprises a valve body and a valve core, the valve body is provided with an exhaust part, and the valve core is connected with the valve body and is positioned in the exhaust part; the exhaust part of the valve body is also provided with a stop piece made of a metal material or a non-metal material;
according to the exhaust pipe of the first aspect of the present invention, when the pressure limiting valve is mounted to the exhaust pipe, the disengagement preventing portion is adapted to form an interference fit or a zero clearance fit with the stopper; after the pressure limiting valve is installed, the anti-falling part is positioned between the valve core and the stop part, and the stop part is suitable for preventing the pressure limiting valve from falling off from the exhaust pipe when the pot cover is turned over or reversely.
Compared with the prior art, the utility model has the beneficial effects that: the exhaust pipe body is provided with the anti-falling part, and the anti-falling part protrudes outwards relative to the exhaust pipe body, so that the exhaust pipe has the characteristics of long service life, low manufacturing cost and convenience in processing and assembling. In addition, the exhaust part of the valve body of the pressure limiting valve component is provided with a stop piece made of non-metal materials or metal materials; when the pressure limiting valve is arranged on the exhaust pipe, the anti-falling part is suitable for forming interference fit or zero clearance fit with the stop part; after the pressure limiting valve is installed, the anti-falling part is located between the valve core and the stop part, the stop part is suitable for preventing the pressure limiting valve from falling off from the exhaust pipe when the pot cover is turned over or reversely, the pressure limiting valve can be prevented from falling off in a pot cover turning over or reverse state, meanwhile, when the pot cover is opened and closed and cleaned in normal use, the pressure limiting valve cannot fall off, the safety is higher, and meanwhile, when a consumer inserts and cleans the pressure limiting valve or installs the pressure limiting valve, the stop part made of metal materials and non-metal materials can be easily assembled and disassembled through installation gaps or elastic deformation.
Drawings
FIG. 1 is a perspective view of an exhaust pipe according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an exhaust pipe according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the pressure limiting valve assembly after the pressure limiting valve of the present embodiment has been installed;
FIG. 4 is a cross-sectional view of the pressure limiting valve assembly with the pressure limiting valve of the embodiment of the present invention installed;
FIG. 5 is a partial cross-sectional view of a pressure limiting valve having a continuous protrusion according to an embodiment of the present invention;
FIG. 6 is a perspective view of a pressure limiting valve having a continuous boss according to an embodiment of the present invention;
FIG. 7 is a partial cross-sectional view of a pressure limiting valve having spaced apart lobes in accordance with an embodiment of the present invention;
FIG. 8 is a perspective view of a pressure limiting valve having spaced apart lobes according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of a pressure limiting valve and exhaust tube with spaced apart tabs in accordance with an embodiment of the present invention.
In the figure: 100. an exhaust pipe; 10. an exhaust pipe body; 101. an exhaust passage; 11. a slip-off preventing part; 12. a first guide portion; 13. a diameter reducing portion; 14. a limiting installation part; 141. a second guide portion; 15. a third guide portion; 16. a fourth guide portion; 200. a pressure limiting valve; 210. a valve body; 211. an exhaust section; 212. a stopper; 220. a valve core.
Detailed Description
The present invention is further described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the case of no conflict, any combination between the embodiments or technical features described below may form a new embodiment. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of embodiments are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.
In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connecting" are to be construed broadly, e.g., as meaning fixedly connected, connected through an intervening medium, connected internally between two elements, or in an interactive relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
The terms "first," "second," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Referring to fig. 1-2, an exhaust pipe 100 according to an embodiment includes an exhaust pipe body 10, the exhaust pipe body 10 having an exhaust passage 101; the exhaust pipe body 10 is provided with a slip-off prevention portion 11, and the slip-off prevention portion 11 protrudes outward relative to the exhaust pipe body 10.
In the preferred embodiment of the present invention, the anti-slip part 11 is made of metal or non-metal material, so that when the metal material is adopted, it has certain strength, is not easy to deform and damage, and has moderate cost and simple process; when adopting non-metallic material, can strengthen its elasticity and do benefit to the installation, can select more material combinations simultaneously, possess more structural feasibility.
In the preferred embodiment of the present invention, the retaining portion 11 is integrally formed with the exhaust pipe body 10, so that the structure is simpler and the cost is lower. In addition, as an alternative, the detachment prevention portion 11 is attached to the exhaust pipe body 10, which makes the detachment and installation more convenient.
In the preferred embodiment of the present invention, the disengagement preventing part 11 protrudes outward relative to the upper end of the exhaust pipe body 10, and when the upper end of the exhaust pipe body 10 is connected with the guide part, it is ensured that the disengagement preventing part 11 protrudes outward relative to the guide part;
in the preferred embodiment of the present invention, the anti-slip part 11 is located in the middle of the exhaust pipe body 10 to ensure that the upper end of the exhaust pipe body 10 has enough length for the guide part to be manufactured;
in the preferred embodiment of the present invention, the retaining portion 11 is a continuous or discontinuous annular protrusion extending along the circumferential direction of the outer wall of the exhaust pipe body 10, so that the continuous annular protrusion has the characteristics of high strength, easy processing and difficult deformation, while the discontinuous annular protrusion can reduce the production cost on the premise of ensuring the strength, and meanwhile, the discontinuous structure is easy to install due to the reduction of the size and area of the matching structure during installation. Specifically, the longitudinal section of the annular bulge is arc-shaped, so that the arc-shaped part has a certain guiding effect, meanwhile, the arc-shaped part can be in elastic interference fit with the pressure limiting valve better, and the assembly is simpler.
In the preferred embodiment of the utility model, the excircle diameter of the maximum cross section of the annular bulge is 8-12mm, and is too small to be processed easily and cannot play a role in preventing falling off, and too large to bear the force, the area is large and is difficult to take out, and the cost is increased; furthermore, the distance between the outermost end of the annular bulge and the exhaust pipe body 10 is 0.3-3mm, the annular bulge is not easy to process due to undersize, the annular bulge cannot play a role in preventing falling off, the annular bulge is difficult to take out due to overlarge stress area, and meanwhile, the cost is increased.
In the preferred embodiment of the present invention, the lower end of the disengagement preventing part 11 is connected with the first guiding part 12, the diameter of the first guiding part is at least partially reduced gradually, thus, the guiding effect can be realized and the disengagement is easy; further, the angle between the first guide part 12 and the exhaust pipe body 10 in the vertical direction is 30 to 60 degrees, so that the guide effect can be realized and the first guide part is easy to be removed; further, the vertical height of the two end points of the first guide part 12 is 1-5mm, so that too small has no guide effect, too large is difficult to assemble and has high cost.
In a preferred embodiment of the present invention, the lower end of the retaining portion 11 is connected to a reduced diameter portion 13, the diameter of the reduced diameter portion 13 is R1, and the diameter of the exhaust pipe body 10 is R2, wherein R1 is 6-10mm, R2: r1 is 1.1 to 1.5, so that the clearance between the reduced diameter portion 13 and the disengagement preventing portion 11 is larger than the clearance between the first guide portion 12 and the disengagement preventing portion 11, and when relative displacement occurs between the reduced diameter portion 13 and the stopper of the pressure limiting valve 200, the movement between the reduced diameter portion 13 and the stopper of the pressure limiting valve 200 is smoother; further, the axial length of the reduced diameter portion 13 is 5 to 10 mm.
In the preferred embodiment of the utility model, the lower end of the reducing part 13 is connected with the limit installation part 14, the upper part of the limit installation part 14 is provided with a second guide part 141, the maximum diameter of the second guide part 141 is 8-12mm, and the valve body is positioned after being installed so as not to vertically deviate; further, the angle between the second guiding part 141 and the exhaust pipe body 10 in the vertical direction is 10 degrees to 60 degrees, and the valve body is positioned after being installed so as not to be vertically deviated; further, the second guide portion 141 has a minimum diameter of 6 to 10mm, and is positioned so as not to be vertically displaced after the valve body is mounted.
In the preferred embodiment of the present invention, the upper end of the disengagement-preventing part 11 is connected with the third guiding part 15, and the maximum diameter of the third guiding part 15 is smaller than the maximum outer diameter of the disengagement-preventing part 11, so that the guiding effect is realized and the installation is easy; further, the axial length of the third guide part 15 is 5-10mm, so that the valve core is reduced in size and easy to mount and stabilize; further, the upper end of the third guide part 15 is connected with the fourth guide part 16; further, the angle of the fourth guide portion 16 to the vertical direction of the exhaust pipe body 10 is 30 to 60 degrees, so that a better guide effect can be achieved and the installation is easy.
Example two
The second embodiment is an improvement on the first embodiment.
Referring to fig. 3-4, a second embodiment provides a pressure limiting valve assembly including a pressure limiting valve 200 and the exhaust pipe 100 of the first embodiment.
Specifically, the pressure limiting valve 200 includes a valve body 210 and a spool 220, the valve body 210 having a vent portion 211, the spool 220 being connected to the valve body 210 and located within the vent portion 211. The gas discharge portion 211 of the valve body 210 is also provided with a stopper 212 made of a metal material or a non-metal material. Preferably, the exhaust part 211 may be a central hole penetrating upper and lower end surfaces of the valve body 210.
When the pressure limiting valve is installed on the exhaust pipe 100, the anti-falling part 11 is suitable for forming interference fit or zero clearance fit with the stop part 212; after the pressure limiting valve is installed, the disengagement preventing portion 11 is located between the valve core 220 and the stop member 212, and the stop member 212 is adapted to prevent the disengagement of the pressure limiting valve from the exhaust pipe 100 when the pressure limiting valve is exhausted. Preferably, the exhaust passage 101 may be an exhaust hole of the upper and lower end surfaces of the exhaust pipe 100.
In the preferred embodiment of the present invention, the stopper 212 is made of plastic material, and has certain strength, and is not easy to deform and damage, and meanwhile, the cost is moderate, and the process is simple. The stop member 212 is integrally formed on the valve body 210, so that the design is simpler in structure and lower in cost.
The stop 212 is a continuous or intermittent protrusion extending circumferentially along the inner or bottom wall of the valve body 210. Specifically, as shown in fig. 5 and 6, when the continuous convex portions are adopted, the convex portions form a circular ring structure, and have the characteristics of high strength and difficult deformation; referring to fig. 7, 8 and 9, when the discontinuous convex portions are used, the production cost can be reduced while the strength is ensured.
In the preferred embodiment of the utility model, the thickness of the convex part is 0.3-2mm, the convex part is too thin, is not easy to form, is easy to damage by stress and fall off by stress, and is too thick, inelastic and incapable of being installed.
In a preferred embodiment of the present invention, the diameter of the inner circle of the convex portion is a, the diameter of the outer circle thereof is B, a: b is 1.1-1.5, too small elasticity is not enough, and the forming is not easy, and too large elasticity area is too large, and the stress permanent deformation is easy.
In the preferred embodiment of the present invention, the interference between the retaining part 11 and the stopper 212 is 0-1.5mm, and too small a gap is easy to be removed and too large a gap is not easy to be installed. When the two are in zero clearance fit, the zero clearance fit can also achieve the anti-drop effect due to the fact that the exhaust time limit valve is pressed and deflected inevitably.
While only certain features and embodiments of the present application have been illustrated and described, many modifications and changes may occur to those skilled in the art without departing substantially from the scope and spirit of the appended claims, for example: variations in the size, dimensions, structure, shape and proportions of the various elements, mounting arrangements, use of materials, colours, orientations and the like.
The above embodiments are only preferred embodiments of the present invention, and the scope of the embodiments of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the embodiments of the present invention are within the scope of the claims of the embodiments of the present invention.
Claims (10)
1. An exhaust pipe includes an exhaust pipe body having an exhaust passage; the exhaust pipe is characterized in that the exhaust pipe body is provided with a separation stopping part, and the separation stopping part protrudes outwards relative to the exhaust pipe body.
2. The exhaust pipe according to claim 1, wherein the slip stopper is made of a metal or nonmetal material, and is attached to the exhaust pipe main body, or is formed integrally with the exhaust pipe.
3. The exhaust pipe according to claim 1 or 2, wherein the disengagement preventing portion protrudes outward with respect to an upper end of the exhaust pipe body; and/or the anti-falling part is positioned in the middle of the exhaust pipe body; and/or the anti-falling part is a continuous or discontinuous annular bulge extending along the circumferential direction of the outer wall of the exhaust pipe body.
4. The exhaust pipe according to claim 3, wherein a longitudinal sectional shape of the annular projection is a circular arc.
5. An exhaust pipe according to claim 3, characterized in that the outer diameter of the maximum cross section of the annular projection is 8 to 12mm, and/or the outermost end of the annular projection is at a distance of 0.3 to 3mm from the exhaust pipe body.
6. The exhaust pipe according to claim 1, wherein a lower end of the disengagement preventing portion is connected to a first guide portion, a diameter of the first guide portion is at least partially gradually reduced, and/or an angle of the first guide portion with respect to a vertical direction of the exhaust pipe body is 30 to 60 degrees, and/or a vertical height of both end points of the first guide portion is 1 to 5 mm.
7. The exhaust pipe according to claim 1, wherein a reduced diameter portion is connected to a lower end of the drop-off prevention portion, the reduced diameter portion has a diameter of R1, and the exhaust pipe body has a diameter of R2, wherein R1 is 6 to 10mm, and R2: R1 is 1.1 to 1.5; and/or the axial length of the reducing part is 5-10 mm.
8. The exhaust pipe according to claim 7, wherein the lower end of the diameter-reducing portion is connected with a limiting installation portion, a second guide portion is arranged on the upper portion of the limiting installation portion, the maximum diameter of the second guide portion is 8-12mm, and/or the angle between the second guide portion and the exhaust pipe body in the vertical direction is 10-60 degrees, and/or the minimum diameter of the second guide portion is 6-10 mm.
9. The exhaust pipe according to claim 1, wherein a third guide portion is connected to an upper end of the slip-off prevention portion, and a maximum diameter of the third guide portion is smaller than a maximum outer diameter of the slip-off prevention portion; and/or the axial length of the third guide part is 5-10 mm; and/or the upper end of the third guide part is connected with a fourth guide part; and/or the angle between the fourth guide part and the vertical direction of the exhaust pipe body is 30-60 degrees.
10. A pressure limiting valve assembly, comprising:
the pressure limiting valve comprises a valve body and a valve core, the valve body is provided with an exhaust part, and the valve core is connected with the valve body and is positioned in the exhaust part; the exhaust part of the valve body is also provided with a stop piece made of a metal material or a non-metal material;
the exhaust pipe of any one of claims 1 to 9, wherein the disengagement preventing portion is adapted to form an interference fit or zero clearance fit with the stopper when the pressure limiting valve is installed in the exhaust pipe; after the pressure limiting valve is installed, the anti-falling part is positioned between the valve core and the stop part, and the stop part is suitable for preventing the pressure limiting valve from falling off from the exhaust pipe when the pot cover is turned over or reversely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121268056.7U CN217013642U (en) | 2021-06-07 | 2021-06-07 | Exhaust pipe and pressure limiting valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121268056.7U CN217013642U (en) | 2021-06-07 | 2021-06-07 | Exhaust pipe and pressure limiting valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217013642U true CN217013642U (en) | 2022-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121268056.7U Active CN217013642U (en) | 2021-06-07 | 2021-06-07 | Exhaust pipe and pressure limiting valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217013642U (en) |
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2021
- 2021-06-07 CN CN202121268056.7U patent/CN217013642U/en active Active
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