CN219588922U - Breather valve mechanism and water supply device - Google Patents
Breather valve mechanism and water supply device Download PDFInfo
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- CN219588922U CN219588922U CN202223310679.3U CN202223310679U CN219588922U CN 219588922 U CN219588922 U CN 219588922U CN 202223310679 U CN202223310679 U CN 202223310679U CN 219588922 U CN219588922 U CN 219588922U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model discloses a breather valve mechanism, which comprises a disassembly and assembly component; the device comprises a water tank, a mounting plate arranged on the water tank and a locking part arranged on the mounting plate; and, breather valve subassembly, including fixing first mounting cylinder on the mounting panel, locate second mounting cylinder in the first mounting cylinder, the bottom welding of second mounting cylinder is on the mounting panel to and locate the regulating part on the second mounting cylinder, through dismouting subassembly and breather valve subassembly that sets up, can carry out quick dismouting to the breather valve and handle, make things convenient for operating personnel to install and maintenance handle equipment, and utilize breather valve subassembly to breathe out the normal exhaust of gas when demineralized water tank intaking, inhale the vapour and carry out the isolation to the air through water, effectively reduce the oxygen in the demineralized water, effectively ensure unit safety and stability operation, reduce the cost of labor simultaneously.
Description
Technical Field
The utility model relates to the technical field of auxiliary equipment for a demineralized water tank of a thermal power plant, in particular to a breather valve mechanism and a water supply device.
Background
The thermal power plant is a plant for producing electric energy by using combustible matters as fuel, and a desalting water tank of the thermal power plant removes anions and cations in water and salt by using chemicals, so that the steam energy after the boiler is evaporated can reach required parameters, the salt contained in the steam can avoid corroding a steam turbine, and production equipment is protected.
However, in the running process of a unit, the desalting water tank of the thermal power plant in the market is in contact with air, so that the oxygen content of condensed water in the condenser exceeds the standard, the service performance of the condenser is easily affected, and the service life of equipment is easily reduced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
In view of the problems of the existing desalting water tank, when the equipment is contacted with air, and the oxygen content of the condensed water in the condenser exceeds the standard, the utility model is provided.
It is therefore an object of the present utility model to provide a respiratory valve mechanism.
In order to solve the technical problems, the utility model provides the following technical scheme: comprises a disassembly and assembly component; the device comprises a water tank, a mounting plate arranged on the water tank and a locking part arranged on the mounting plate; and the breather valve assembly comprises a first mounting cylinder fixed on the mounting plate, a second mounting cylinder arranged in the first mounting cylinder, a bottom of the second mounting cylinder welded on the mounting plate, and an adjusting part arranged on the second mounting cylinder.
As a preferable embodiment of the breather valve mechanism of the present utility model, wherein: the locking part comprises a mounting ring arranged at the top of the water tank, a mounting groove for clamping the mounting ring and a locking block movably connected to the mounting plate are formed in the bottom of the mounting plate; and the limiting piece is arranged on the locking block.
As a preferable embodiment of the breather valve mechanism of the present utility model, wherein: the limiting piece is including seting up the recess on the locking piece, be provided with the plug rod in the recess, the inner wall of recess can be dismantled and be connected with interior hexagonal ring, the jack groove has been seted up in running through on collar, mounting groove and the mounting panel, the one end and the interior hexagonal ring through connection of plug rod, the other end and the jack groove joint of plug rod.
As a preferable embodiment of the breather valve mechanism of the present utility model, wherein: the limiting piece is characterized in that the limiting piece further comprises a limiting ring fixedly arranged on the outer contour of the inserting and connecting rod, a reset spring is arranged on the limiting ring, and a connecting block is arranged at the end part of the inserting and connecting rod.
As a preferable embodiment of the breather valve mechanism of the present utility model, wherein: the inner wall of the groove close to the inner hexagonal ring is provided with a thread groove, and the inner wall of the groove is in threaded connection with the inner hexagonal ring through the thread groove.
As a preferable embodiment of the breather valve mechanism of the present utility model, wherein: the adjusting part comprises an annular steel plate arranged on the outer contour of the second mounting cylinder and a mounting cylinder arranged on the annular steel plate, teeth are formed in the bottom of the mounting cylinder, and an impurity-preventing cover is fixed at the top of the mounting cylinder.
The utility model has the beneficial effects that: through dismouting subassembly and breather valve subassembly that sets up, can carry out quick dismouting to the breather valve and handle, make things convenient for operating personnel to install and maintenance treatment to equipment, and utilize breather valve subassembly breather normal exhaust when demineralized water case intaking, inhale the vapour and carry out the isolation to the air through water, effectively reduce the oxygen that contains in the demineralized water, effectively ensure unit safety and stability operation, reduce the cost of labor simultaneously.
In view of the problem that when the breather valve works, an operator is required to manually add water into the water collecting cavity, so that the labor intensity of the operator is increased.
In order to solve the technical problems, the utility model also provides the following technical scheme: the water replenishing device comprises the breather valve mechanism, and the water replenishing assembly comprises a water supply part arranged on the water tank and a control part arranged in the water collecting cavity.
As a preferred embodiment of the water supply device according to the present utility model, wherein: the water supply part comprises a protective box, a water supply pump is arranged in the protective box, a water inlet pipe is arranged at the water inlet of the water supply pump, a water drain pipe is arranged at the water outlet of the water supply pump, and the end part of the water drain pipe is connected with the water collecting cavity and is arranged in the controller in the protective box.
As a preferred embodiment of the water supply device according to the present utility model, wherein: the control part comprises a guide rod arranged in the water collection bin, proximity switches arranged at two ends of the guide rod and a floating block arranged on the outer contour of the guide rod.
As a preferred embodiment of the water supply device according to the present utility model, wherein: an access hole is formed in the surface of the protective box, and an access door is hinged to the inner wall of the access hole.
The utility model has the beneficial effects that: through the control portion and the water supply portion that set up, can be after the water in the water collecting cavity reduces, start the working shaft and send water to the water collecting intracavity to increased the practicality of equipment, reduced operating personnel's intensity of labour.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic view of the overall structure of a breather valve mechanism and a water supply device according to the present utility model.
Fig. 2 is an enlarged schematic view of the breathing valve mechanism and the water supply device at a position a in fig. 1.
FIG. 3 is a schematic view of a partially cut-away configuration of a mounting plate of the breather valve mechanism and water supply device of the present utility model.
Fig. 4 is an enlarged schematic view of the structure of the breather valve mechanism of the present utility model at B in fig. 3, which is described in the water supply device.
FIG. 5 is a schematic cross-sectional view of the first and second mounting barrels of the breather valve mechanism and the water supply device of the present utility model.
Fig. 6 is a schematic diagram of a front view of a control box of the breather valve mechanism and the water supply device of the present utility model.
FIG. 7 is a schematic cross-sectional view of a control box of the breather valve mechanism and the water supply device of the present utility model.
FIG. 8 is a schematic cross-sectional view of a control section of the breather valve mechanism of the present utility model and a water supply device.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1, a breather valve mechanism is provided, comprising, a removable assembly 100; comprises a water tank 101, a mounting plate 102 arranged on the water tank 101, and a locking part 103 arranged on the mounting plate 102; and, the breather valve assembly 200, including fixing the first mounting cylinder 201 on the mounting plate 102, locate the second mounting cylinder 202 in the first mounting cylinder 201, the bottom welding of second mounting cylinder 202 is on the mounting plate 102 to and locate the regulating part 203 on the second mounting cylinder 202, fix the mounting plate 102 on the water tank 101 through the locking part 103 that sets up, and utilize regulating part 203 can breathe in normal exhaust of respirator when the water tank 101 intakes, the breathing in is isolated through water to the air.
Specifically, the locking part 103 comprises a mounting ring 103a arranged at the top of the water tank 101, a mounting groove 103b for clamping the mounting ring 103a is formed at the bottom of the mounting plate 102, and a locking block 103c movably connected to the mounting plate 102; the limiting member provided on the lock block 103c is used to limit the mounting ring 103a in the mounting groove 103b by an operator by aligning the mounting groove 103b at the bottom of the mounting plate 102 with the mounting ring 103a and then pressing down the mounting plate 102.
Specifically, the limiting piece comprises a groove 103c-1a formed in the locking block 103c, a plug rod 103c-1b is arranged in the groove 103c-1a, an inner hexagonal ring 103c-1c is detachably connected to the inner wall of the groove 103c-1a, a plug groove 103c-1d is formed in the mounting ring 103a, the mounting groove 103b and the mounting plate 102 in a penetrating mode, one end of the plug rod 103c-1b is connected with the inner hexagonal ring 103c-1c in a penetrating mode, the other end of the plug rod 103c-1b is connected with the plug groove 103c-1d in a clamping mode, an operator sends the plug rod 103c-1b penetrating through the inner hexagonal ring 103c-1c and the groove 103c-1a into the plug groove 103c-1d, and limiting treatment is conducted on the mounting ring 103a clamped in the mounting groove 103b through the plug rod 103c-1 b.
The limiting piece further comprises a limiting ring 103c-1e fixed on the outer contour of the inserting rod 103c-1b, a reset spring 103c-1f is installed on the limiting ring 103c-1e, a connecting block 103c-1g is arranged at the end of the inserting rod 103c-1b, firstly, an operator pulls the connecting block 103c-1g to drive the inserting rod 103c-1b to move in the groove 103c-1a, the reset spring 103c-1f is extruded by the limiting ring 103c-1e when the inserting rod 103c-1b moves, after the inserting rod 103c-1b cannot move, the operator rotates the locking block 103c at the moment, the inserting rod 103c-1b on the limiting piece is aligned with the inserting groove 103c-1d, then the operator releases the hand, the inserting rod 103c-1b is conveyed into the inserting groove 103c-1d by the aid of the elasticity of the reset spring 103c-1f, and limiting treatment of the installing ring 103a in the installing groove 103b is completed
Further, the groove 103c-1a is close to the inner wall of the inner hexagonal ring 103c-1c, the thread groove 103c-1h is formed in the inner wall of the groove 103c-1a, the inner wall of the groove 103c-1a is in threaded connection with the inner hexagonal ring 103c-1c through the thread groove 103c-1h, an operator drives the limiting ring 103c-1e on the plug rod 103c-1b to move by pulling the connecting block 103c-1g, the reset spring 103c-1f is extruded by the limiting ring 103c-1e, the plug rod 103c-1b is taken out of the plug groove 103c-1d, then the locking block 103c is rotated upwards, the plug rod 103c-1b is located above the mounting plate 102, at this time, the operator rotates the connecting block 103c-1g to drive the hexagonal plug rod 103c-1b to rotate, the inner hexagonal ring 103c-1c is driven to move outwards by rotating the plug rod 103c-1b, the plug rod 103c-1b is conveniently taken out of the groove 103c-1a on the locking block 103c, and the reset spring sleeved on the rod 103c-1b is replaced.
The operation process comprises the following steps: firstly, an operator aligns a mounting groove 103b at the bottom of a mounting plate 102 with a mounting ring 103a, then presses the mounting plate 102 downwards to fix the mounting plate 102 on a water tank 101, then pulls a connecting block 103c-1g to drive a plug rod 103c-1b to move in a groove 103c-1a, and when the plug rod 103c-1b moves, a limiting ring 103c-1e is used for extruding a reset spring 103c-1f, when the plug rod 103c-1b cannot move, the operator rotates a locking block 103c at the moment, so that the plug rod 103c-1b on the limiting piece is aligned with the plug groove 103c-1d, then the operator releases hands, the plug rod 103c-1b is conveyed into the plug groove 103c-1d by the aid of the elastic force of the reset spring 103c-1f, limiting treatment of the mounting ring 103a in the mounting groove 103b is completed, and therefore when the water tank 101 is filled with water, the respirator can normally exhaust air by means of an adjusting part 203, air is sucked and protection treatment is carried out by means of an anti-mixing part 203.
Example 2
Referring to fig. 2, this embodiment differs from the first embodiment in that: the adjusting part 203 includes a water collecting chamber 203a formed between the first mounting cylinder 201 and the second mounting cylinder 202, the mounting plate 102 is first connected to the air outlet of the water tank 101, then the first mounting cylinder 201 and the second mounting cylinder 202 are welded to the mounting plate 102, then water is injected into the water collecting chamber 203a between the first mounting cylinder 201 and the second mounting cylinder 202, the breather valve assembly 200 is normally exhausted when the water tank 101 is supplied with water, and when the desalination tank 101 is sucked in, the air is isolated by the water in the water collecting chamber 203 a.
Specifically, the annular steel plate 203b on the outer contour of the second mounting barrel 202, the mounting barrel 203c on the annular steel plate 203b, the teeth 203d are provided at the bottom of the mounting barrel 203c, the impurity-preventing cover 203e is fixed at the top of the mounting barrel 203c, the mounting barrel 203c is placed on the annular steel plate 203b, gaps between a plurality of adjacent teeth 203d on the mounting barrel 203c are utilized to enable water in the water collecting cavity 203a to circulate normally, and impurities can be prevented from entering the water collecting cavity 203a by utilizing the impurity-preventing cover 203e on the mounting barrel 203 c.
The rest of the structure is the same as in embodiment 1.
The operation process comprises the following steps: firstly, the mounting plate 102 is connected with the exhaust port of the water tank 101, then the first mounting cylinder 201 and the second mounting cylinder 202 are welded on the mounting plate 102, then water is injected into the water collecting cavity 203a between the first mounting cylinder 201 and the second mounting cylinder 202, when the water tank 101 is used for water, the breather valve assembly 200 is normally exhausted, when the desalination water tank 101 is used for air suction, water in the water collecting cavity 203a is used for carrying out isolation treatment, and then the impurity preventing cover 203e is used for preventing impurities from entering the water collecting cavity 203 a.
Example 3
Referring to fig. 2, this embodiment differs from the above embodiment in that: the embodiment also provides a water supply device, which comprises the breather valve mechanism; and, the water replenishing assembly 300 comprises a water supply part 301 arranged on the water tank 101 and a control part 302 arranged in the water collecting cavity 203a, when the water in the water collecting cavity 203a is reduced, the control part 302 enables the water supply part 301 to work, and the water is sent into the water collecting cavity 203a, so that the labor intensity of operators is reduced.
Specifically, the water supply part 301 includes a protection box 301a, a water supply pump 301a-1 is disposed in the protection box 301a, a water inlet pipe 301a-2 is disposed at a water inlet of the water supply pump 301a-1, a water discharge pipe 301a-3 is disposed at a water outlet of the water supply pump 301a-1, and a PLC controller 301a-4 is disposed in the protection box 301a, the water supply pump 301a-1 is started to supply water to the water discharge pipe 301a-3 through the water inlet pipe 301a-2 by the PLC controller 301a-4, the water is input into the water collecting cavity 203a by the water discharge pipe 301a-3, and the water supply pump 301a-1 is turned off by the PLC controller 301a-4 after the water is filled.
Specifically, the control part 302 includes a guide bar 302a provided in the sump, proximity switches 302b provided at both ends of the guide bar 302a, and a slider 302c provided on the outer contour of the guide bar 302a, when the water level in the sump 203a is normal, the slider 302c floats on the water surface, after the water level decreases, the slider 302c descends to activate the proximity switch 302b at the bottom of the guide bar, an electric signal is supplied to the PLC controller 301a-4, the water supply pump 301a-1 is turned on by the PLC controller 301a-4, then water is supplied to the drain 301a-3 through the water inlet pipe 301a-2, then water is supplied to the sump 203a through the drain 301a-3, then after the water level increases, the slider 302c floats upward, the proximity switch 302b at the top of the guide bar 302a is turned on, and then the electric signal is supplied to the PLC controller 301a-4 to turn off the water supply pump 301a-1, thereby greatly reducing the labor intensity of the operator.
Further, an access opening 301b is formed in the surface of the protective box 301a, an access door 301c is hinged to the inner wall of the access opening 301b, and when the water supply pump 301a-1 or the PLC controller 301a-4 is damaged, an operator opens the access door 301c and repairs the damaged parts by using the access opening 301 b.
The rest of the structure is the same as in embodiment 2.
The operation process comprises the following steps: when the water level in the water collecting chamber 203a is normal, the slider 302c floats on the water surface, after the water level is reduced, the slider 302c descends to activate the proximity switch 302b at the bottom of the guide pipe, an electric signal is supplied to the PLC controller 301a-4, the water supply pump 301a-1 is turned on by the PLC controller 301a-4, then water is supplied to the water discharging pipe 301a-3 through the water inlet pipe 301a-2, then water is supplied to the water collecting chamber 203a by the water discharging pipe 301a-3, after the water level is raised, the slider 302c turns on the proximity switch 302b at the top of the guide rod 302a, and then the electric signal is supplied to the PLC controller 301a-4 to turn off the water supply pump 301 a-1.
It is important to note that the construction and arrangement of the utility model as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (10)
1. A breather valve mechanism, characterized in that: comprising the steps of (a) a step of,
-a dismounting assembly (100); comprises a water tank (101), a mounting plate (102) arranged on the water tank (101) and a locking part (103) arranged on the mounting plate (102); the method comprises the steps of,
the breather valve assembly (200) comprises a first mounting cylinder (201) fixed on the mounting plate (102), a second mounting cylinder (202) arranged in the first mounting cylinder (201), the bottom of the second mounting cylinder (202) is welded on the mounting plate (102), and an adjusting part (203) arranged on the second mounting cylinder (202).
2. The respiratory valve mechanism of claim 1, wherein: the locking part (103) comprises a mounting ring (103 a) arranged at the top of the water tank (101), a mounting groove (103 b) for clamping the mounting ring (103 a) and a locking block (103 c) movably connected to the mounting plate (102) are formed in the bottom of the mounting plate (102);
and a limiting piece arranged on the locking block (103 c).
3. The respiratory valve mechanism of claim 2, wherein: the limiting piece comprises a groove (103 c-1 a) formed in the locking block (103 c), a plug rod (103 c-1 b) is arranged in the groove (103 c-1 a), an inner hexagonal ring (103 c-1 c) is detachably connected to the inner wall of the groove (103 c-1 a), a plug groove (103 c-1 d) is formed in the mounting ring (103 a), the mounting groove (103 b) and the mounting plate (102) in a penetrating mode, one end of the plug rod (103 c-1 b) is connected with the inner hexagonal ring (103 c-1 c) in a penetrating mode, and the other end of the plug rod (103 c-1 b) is connected with the plug groove (103 c-1 d) in a clamping mode.
4. A breather valve mechanism as in claim 3, wherein: the limiting piece further comprises a limiting ring (103 c-1 e) fixedly arranged on the outer contour of the inserting and connecting rod (103 c-1 b), a reset spring (103 c-1 f) is arranged on the limiting ring (103 c-1 e), and a connecting block (103 c-1 g) is arranged at the end part of the inserting and connecting rod (103 c-1 b).
5. The respiratory valve mechanism as recited in claim 4, wherein: the inner wall of the groove (103 c-1 a) close to the inner hexagonal ring (103 c-1 c) is provided with a thread groove (103 c-1 h), and the inner wall of the groove (103 c-1 a) is in threaded connection with the inner hexagonal ring (103 c-1 c) through the thread groove (103 c-1 h).
6. The respiratory valve mechanism as recited in claim 5, wherein: the adjusting part (203) comprises an annular steel plate (203 b) arranged on the outer contour of the second mounting cylinder (202) and a mounting cylinder (203 c) arranged on the annular steel plate (203 b), teeth (203 d) are formed at the bottom of the mounting cylinder (203 c), and a impurity-preventing cover (203 e) is fixed at the top of the mounting cylinder (203 c).
7. A water supply device, characterized in that: comprising the breather valve mechanism of any one of claims 1 to 6, and,
the water supplementing assembly (300) comprises a water supply part (301) arranged on the water tank (101) and a control part (302) arranged in the water collecting cavity (203 a).
8. The water supply apparatus of claim 7, wherein: the water supply part (301) comprises a protective box (301 a), a water supply pump (301 a-1) is arranged in the protective box (301 a), a water inlet pipe (301 a-2) is arranged at the water inlet of the water supply pump (301 a-1), a water discharge pipe (301 a-3) is arranged at the water outlet of the water supply pump (301 a-1), the end part of the water discharge pipe (301 a-3) is connected with the water collection cavity (203 a), and a PLC (301 a-4) is arranged in the protective box (301 a).
9. The water supply apparatus of claim 8, wherein: the control part (302) comprises a guide rod (302 a) arranged in the water collection bin, proximity switches (302 b) arranged at two ends of the guide rod (302 a), and a floating block (302 c) arranged on the outer contour of the guide rod (302 a).
10. The water supply apparatus of claim 9, wherein: an access hole (301 b) is formed in the surface of the protective box (301 a), and an access door (301 c) is hinged to the inner wall of the access hole (301 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223310679.3U CN219588922U (en) | 2022-12-09 | 2022-12-09 | Breather valve mechanism and water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223310679.3U CN219588922U (en) | 2022-12-09 | 2022-12-09 | Breather valve mechanism and water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219588922U true CN219588922U (en) | 2023-08-25 |
Family
ID=87697261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223310679.3U Active CN219588922U (en) | 2022-12-09 | 2022-12-09 | Breather valve mechanism and water supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219588922U (en) |
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2022
- 2022-12-09 CN CN202223310679.3U patent/CN219588922U/en active Active
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