CN221003950U - Negative pressure air inlet valve of solar water heater - Google Patents
Negative pressure air inlet valve of solar water heater Download PDFInfo
- Publication number
- CN221003950U CN221003950U CN202321728076.7U CN202321728076U CN221003950U CN 221003950 U CN221003950 U CN 221003950U CN 202321728076 U CN202321728076 U CN 202321728076U CN 221003950 U CN221003950 U CN 221003950U
- Authority
- CN
- China
- Prior art keywords
- valve
- air inlet
- valve core
- cover
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to a negative pressure air inlet valve of a solar water heater, which comprises a valve body, a valve core and a valve cover, wherein a spring seat is formed on the inner wall of the valve body, a spring is arranged on the spring seat, a lug is formed on the lower end surface of the valve core, the valve core is arranged on the spring to enable the lug to extend into the spring, the valve cover is screwed into an upper port of the valve body, the upper end of the valve core extends into a first air inlet cavity formed in the valve cover, a boss formed at the lower end of the valve cover abuts against a first sealing ring sleeved on the valve core, a plurality of air inlet holes communicated with the first air inlet cavity are formed on the side wall of the valve cover, at least three steel ball holes uniformly distributed around the valve core are formed on the inner wall of the first air inlet cavity, a plurality of vertical sliding grooves corresponding to the steel ball holes one by one are formed on the outer wall of the valve core, and steel balls arranged in the steel ball holes are arranged in the sliding grooves and are kept between the steel ball holes and the sliding grooves. The negative pressure water inlet valve of the solar water heater can enable the sliding of the valve core to be stable and smooth, and therefore the normal operation of the air inlet valve is ensured.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a negative pressure air inlet valve of a solar water heater.
Background
An air inlet valve is generally arranged on a water tank of the solar water heater, when the water outlet flow in the water tank is overlarge, and negative pressure is formed due to insufficient water inlet or water cut-off, external air is sucked to keep the water inlet and outlet pressure of the water tank balanced, and a protection system or a sealed water tank is not damaged by siphon pumping.
In the prior art, an air inlet valve generally comprises a valve body, a valve core and a valve cover, wherein the valve core is arranged in the valve body and is kept in the valve body by the valve cover, when negative pressure is generated, external air enters the valve body through an air inlet hole on the valve body or the valve cover to push the valve core to slide so as to open the valve, and air inlet is realized. However, because a channel through which air flows needs to be reserved, when the valve core slides in the valve body, a gap is formed between the valve core and the inner wall of the valve body, so that the valve core can deviate and be blocked in the sliding process, and the air inlet valve cannot work normally.
The present utility model has been made in view of the above problems.
Disclosure of Invention
The utility model provides a negative pressure air inlet valve of a solar water heater, which solves the problems existing in the use process of the prior art.
The technical scheme of the utility model is realized as follows:
The utility model provides a solar water heater's negative pressure admission valve, includes valve body, case and valve gap, be formed with the spring holder on the valve body inner wall, be provided with the spring on the spring holder, the case is the type of falling T and is formed with the lug on the lower terminal surface, the case is arranged in on the spring and is made the lug stretch into in the spring, the valve gap is T type and spiro union in the valve body upper port, makes the case upper end stretch into in the valve gap in the first inlet chamber that has been seted up, makes the boss that the valve gap lower extreme was formed with support on the case on the first sealing washer that the cover was equipped with, the valve gap exposes and has seted up a plurality of first inlet port with first inlet chamber intercommunication on the lateral wall of the part of valve body, set up at least three steel ball holes that encircle case evenly distributed on the first inlet chamber inner wall, set up a plurality of vertical spouts with steel ball hole one-to-one on the outer wall of the part in the case stretches into first inlet chamber, the steel ball part that is provided with in the steel ball hole is arranged in the spout and keeps between hole and spout.
Preferably, a second air inlet cavity which upwards penetrates through the valve core is formed in the valve core, and a plurality of second air inlet holes which penetrate through the valve core are formed in the inner wall of the second air inlet cavity.
Preferably, the valve core is connected with an auxiliary rod, and the auxiliary rod upwards penetrates through an auxiliary through hole matched with the auxiliary rod and arranged at the upper end of the valve cover to extend out of the valve cover.
Preferably, the upper end of the auxiliary rod extending out of the valve cover is connected with an umbrella-shaped protective cover.
Preferably, the outer end of the protective cover extends downwards to form a dust-proof part surrounding the first air inlet hole.
Preferably, the lower end of the dust-proof part is bent outwards.
Preferably, the lower end of the auxiliary rod is in threaded connection with the bottom wall of the second air inlet cavity, and the protective cover is in threaded connection with the upper end of the auxiliary rod.
Preferably, the valve cover further comprises a sealing cover, a connecting part surrounding the auxiliary through hole is formed on the upper end face of the valve cover, and the sealing cover can be screwed on the connecting part after the auxiliary rod is detached.
In summary, the beneficial effects of the utility model are as follows:
1. The steel balls slide in the sliding grooves when the valve core slides in the first air inlet cavity, so that the sliding of the valve core is smooth, and meanwhile, the axial support is provided for the valve core, the valve core keeps stable in the axial center in the sliding process, and the situation that the valve core is blocked due to deflection is avoided, so that the normal operation of the air inlet valve is ensured;
2. the auxiliary rod slides in the auxiliary through hole when the valve core slides in the first air inlet cavity, so that the axial stabilizing effect is further provided for the sliding of the valve core, the stability of the valve core during sliding is further ensured, the normal operation of the air inlet valve is further ensured, and the valve core can be driven to slide downwards by manually pressing the auxiliary rod to open a channel between the boss and the first sealing ring, so that the external air enters the water tank to regulate the pressure in the water tank, and the manual controllability of the air inlet valve is realized;
3. The protection cover provides protection effect for the first air inlet hole and the auxiliary through hole, effectively prevents rainwater or dust from invading in the first air inlet cavity through the first air inlet hole and the auxiliary through hole to influence the sliding of the valve core, thereby ensuring the normal work of the air inlet valve.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a valve core according to the present utility model;
FIG. 3 is a schematic view of the structure of the utility model when the auxiliary rod is detached and then the sealing cover is connected.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in the figure, a negative pressure air inlet valve of a solar water heater comprises a valve body 1, a valve core 2 and a valve cover 3, wherein a spring seat 11 is formed on the inner wall of the valve body 1, a spring 4 is arranged on the spring seat 11, the valve core 2 is of an inverted T shape, a lug 21 is formed on the lower end surface of the valve core 2, the valve core 2 is arranged on the spring 4 to enable the lug 21 to extend into the spring 4, the valve cover 3 is in a T-shaped and screwed connection with an upper port of the valve body 1, the upper end of the valve core 2 extends into a first air inlet cavity 31 formed in the valve cover 3, a boss 32 formed at the lower end of the valve cover 3 abuts against a first sealing ring 5 sleeved on the valve core 2, a sealing step is formed at the upper port of the valve body 1, a second sealing ring 6 compressed by the valve core 3 is arranged on the sealing step, a plurality of first air inlet holes 33 communicated with the first air inlet cavity 31 are formed on the side wall of the valve body 3, at least three steel ball holes 34 evenly distributed around the valve core 2 are formed on the inner wall of the first air inlet cavity 31, a plurality of steel ball holes 34 are formed in the valve core 2 and correspond to the first air inlet holes 34 formed in the valve cover 2, and a plurality of sliding grooves 34 are formed in the valve core and correspond to the first air inlet holes 22.
In the above embodiment, the valve body 1 is connected to the upper end of the water tank of the solar water heater, under the normal condition, the spring 4 pushes the valve core 2 to make the boss 32 tightly prop against the first sealing ring 5, so as to realize the sealing of the valve, when the negative pressure occurs in the water tank, the external air enters the first air inlet cavity 31 through the first air inlet hole 33 to push the valve core 2 to slide downwards in the first air inlet cavity 31 and compress the spring 4, so that a gap through which the air can flow is generated between the boss 32 and the first sealing ring 5, the air entering the first air inlet cavity 31 flows through the gap between the valve core 2 and the inner wall of the first air inlet cavity 31 and the gap between the boss 32 and the first sealing ring 5, then flows through the lower end of the valve body 1 to enter the water tank, so as to balance the pressure in the water tank with the outside, so as to realize the purpose of protecting the water tank, and after the pressure in the water tank is balanced with the outside, the valve core 2 slides upwards under the action of the spring 4 to make the boss 32 tightly prop against the first sealing ring 5 again, so as to recover the sealing of the valve, during the sliding process of the valve core 2, the steel balls roll in the sliding chute 22, so that the steel balls 7 slide smoothly, and keep the valve core 2 in the sliding mode, and the valve core 2 is kept in a stable condition, and the axial core 2 is kept in the axial direction, and the normal condition.
Preferably, a second air inlet cavity 23 body penetrating through the valve core 2 upwards is formed in the valve core 2, a plurality of second air inlet holes 24 penetrating through the valve core 2 are formed in the inner wall of the second air inlet cavity 23, more flowable channels are provided for air entering the first air inlet cavity 31 by the second air inlet cavity 23 and the second air inlet holes 24, so that the flow rate of external air entering the water tank through the air inlet valve is increased, and when the negative pressure condition of the water tank occurs, the pressure in the water tank can be regulated to be balanced with the outside more quickly, and the better effect of protecting the water tank is realized.
Further, an auxiliary rod 8 is connected to the valve core 2, and the auxiliary rod 8 passes through an auxiliary through hole 35 which is formed at the upper end of the valve cover 3 and matched with the auxiliary rod 8, and extends out of the valve cover 3.
In the above preferred embodiment, the valve core 2 slides in the first air inlet cavity 31, the auxiliary rod 8 slides in the auxiliary through hole 35, the auxiliary rod 8 further provides an axial stabilizing effect for the sliding of the valve core 2, the stability of the valve core 2 during sliding is further ensured, and thus the normal operation of the air inlet valve is further ensured, and the valve core 2 can be driven to slide downwards by manually pressing the auxiliary rod 8 to open a channel between the boss 32 and the first sealing ring 5, so that the external air enters the water tank to regulate the pressure in the water tank, and the manual controllability of the air inlet valve is realized.
Still further, the upper end of auxiliary rod 8 that stretches out valve gap 3 is connected with and takes the form of umbrella protection casing 9.
In the above preferred embodiment, the protection cover 9 provides protection for the first air inlet hole 33 and the auxiliary through hole 35, preventing rainwater from invading into the first air inlet cavity 31 through the first air inlet hole 33 and the auxiliary through hole 35 to affect the sliding of the valve core 2, thereby ensuring the normal operation of the air inlet valve.
Preferably, the outer end of the protection cover 9 extends downward to form a dust-proof part 91 surrounding the first air inlet hole 33, and the dust-proof part 91 further strengthens the protection effect on the first air inlet hole 33 and the auxiliary through hole 35, and not only can further strengthen the blocking effect on rainwater, but also has a certain dust-proof effect, so that dust is prevented from entering the first air inlet cavity 31 through the first air inlet hole 33 and the auxiliary through hole 35 to influence the sliding of the valve core 2 so as to influence the normal operation of the air inlet valve.
Preferably, the lower end of the dustproof part 91 is bent outwards, so that a larger gap is formed between the dustproof part 91 and the first air inlet hole 33, and the flow of the external air flowing through the first air inlet hole 33 is ensured while the protection effect is achieved, so that the air inlet valve can quickly adjust the pressure in the water tank to keep balance.
Furthermore, the lower end of the auxiliary rod 8 is screwed to the bottom wall of the second air inlet cavity 23, the protecting cover 9 is screwed to the upper end of the auxiliary rod 8, and the valve cover 3 further comprises a sealing cover 10, a connecting part 36 surrounding the auxiliary through hole 35 is formed on the upper end surface of the valve cover 3, and after the auxiliary rod 8 is detached, the sealing cover 10 can be screwed to the connecting part 36.
In the above preferred embodiment, the auxiliary rod 8 and the valve core 2 and the protective cover 9 and the auxiliary rod 8 are conveniently assembled and disassembled in a threaded connection manner, and meanwhile, when the manual control of the air inlet valve is not needed to be realized through the auxiliary rod 8, the auxiliary rod 8 can be conveniently disassembled, and then the sealing cover 10 is connected to the connecting part 36 to seal the auxiliary through hole 35, so that the filling of rainwater is prevented, and the valve core 2 is suitable for a scene that the auxiliary rod 8 is easily touched by mistake to drive the valve core 2 to slide.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a solar water heater's negative pressure admission valve, includes valve body (1), case (2) and valve gap (3), its characterized in that: the valve body (1) is provided with a spring seat (11) on the inner wall, the spring seat (11) is provided with a spring (4), the valve core (2) is of an inverted T shape and is provided with a lug (21) on the lower end face, the valve core (2) is arranged on the spring (4) to enable the lug (21) to extend into the spring (4), the valve cover (3) is of a T shape and is in threaded connection with the upper port of the valve body (1), the upper end of the valve core (2) extends into a first air inlet cavity (31) formed in the valve cover (3), a boss (32) formed at the lower end of the valve cover (3) abuts against a first sealing ring (5) sleeved on the valve core (2), a plurality of first air inlet cavities (33) communicated with the first air inlet cavities (31) are formed on the side wall of the part of the valve body (1), at least three steel ball holes (34) evenly distributed around the valve core (2) are formed in the inner wall of the first air inlet cavity (31), the valve core (2) extends into a plurality of sliding grooves (22) formed in the outer wall of the first air inlet cavity (31) in a one-to-one correspondence mode, the steel ball (7) arranged in the steel ball hole (34) is partially arranged in the chute (22) and is kept between the steel ball hole (34) and the chute (22).
2. The negative pressure intake valve of a solar water heater as defined in claim 1, wherein: a second air inlet cavity (23) which upwards penetrates through the valve core (2) is formed in the valve core (2), and a plurality of second air inlet holes (24) which penetrate through the valve core (2) are formed in the inner wall of the second air inlet cavity (23).
3. The negative pressure intake valve of a solar water heater as defined in claim 2, wherein: the valve core (2) is connected with an auxiliary rod (8), and the auxiliary rod (8) upwards penetrates through an auxiliary through hole (35) matched with the auxiliary rod (8) and arranged at the upper end of the valve cover (3) to extend out of the valve cover (3).
4. A negative pressure intake valve of a solar water heater as defined in claim 3, wherein: the upper end of the auxiliary rod (8) extending out of the valve cover (3) is connected with an umbrella-shaped protective cover (9).
5. The negative pressure intake valve of claim 4, wherein: the outer end of the protective cover (9) extends downwards to form a dustproof part (91) surrounding the first air inlet hole (33).
6. The negative pressure intake valve of claim 5, wherein: the lower end of the dustproof part (91) is bent outwards.
7. The negative pressure intake valve of claim 6, wherein: the lower end of the auxiliary rod (8) is in threaded connection with the bottom wall of the second air inlet cavity (23), and the protective cover (9) is in threaded connection with the upper end of the auxiliary rod (8).
8. The negative pressure intake valve of claim 7, wherein: the automatic sealing device is characterized by further comprising a sealing cover (10), wherein a connecting part (36) surrounding the auxiliary through hole (35) is formed on the upper end face of the valve cover (3), and the sealing cover (10) can be screwed on the connecting part (36) after the auxiliary rod (8) is detached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321728076.7U CN221003950U (en) | 2023-07-03 | 2023-07-03 | Negative pressure air inlet valve of solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321728076.7U CN221003950U (en) | 2023-07-03 | 2023-07-03 | Negative pressure air inlet valve of solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003950U true CN221003950U (en) | 2024-05-24 |
Family
ID=91120515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321728076.7U Active CN221003950U (en) | 2023-07-03 | 2023-07-03 | Negative pressure air inlet valve of solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003950U (en) |
-
2023
- 2023-07-03 CN CN202321728076.7U patent/CN221003950U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |