CN211676627U - Safety Valves and Water Heaters - Google Patents

Abstract

The utility model discloses a safety valve and a water heater, wherein the safety valve comprises a valve body, a filter element and a sealing head, wherein the valve body has a water inlet, a water outlet, and a filter chamber arranged on one side of the water inlet , the valve body is also provided with an installation port, which is communicated with the filter chamber; the filter element is installed in the filter chamber from the installation port; the sealing head is threadedly connected to the installation The inner wall of the mouth, the sealing head has a rotation axis, the filter element is mounted on the inner end of the sealing head, and the sealing head is rotatable relative to the filter element around the rotation axis; wherein the filter chamber is connected with The filter element cooperates to limit the rotation of the filter element about the rotation axis. The safety valve of the technical solution of the utility model has the advantages of convenient disassembly and assembly of the filter element and good filtering effect.

Description

Safety Valves and Water Heaters

technical field

The utility model relates to the technical field of valves, in particular to a safety valve and a water heater.

Background technique

The safety valve usually includes an internal leakage device and an external leakage device. In order to prevent impurities in the water from entering the internal leakage device and/or the external leakage device, a filter screen is usually installed at the water inlet of the valve body to filter impurities in the water. However, with the filter screen installed in this way, when cleaning the filter screen, the safety valve needs to be completely disassembled, and then the filter screen is taken out from the water inlet of the safety valve, which is very inconvenient to operate.

Utility model content

The main purpose of the utility model is to propose a safety valve, which aims to solve the problem of inconvenient disassembly and assembly of the existing safety valve filter screen.

In order to achieve the above purpose, the safety valve proposed by the present utility model includes

a valve body, which has a water inlet, a water outlet, and a filter chamber arranged on one side of the water inlet, the valve body is further provided with an installation port, and the installation port communicates with the filter chamber;

a filter element mounted on the filter chamber from the mounting port; and

The sealing head is screwed to the inner wall of the installation port, the sealing head has a rotation axis, the filter element is installed on the inner end of the sealing head, and the sealing head is relative to the filter element around the rotation axis rotatable;

Wherein, the filter chamber cooperates with the filter element to limit the rotation of the filter element around the rotation axis.

Optionally, the filter element cooperates with the inner wall of the filter chamber through a limiting structure, so as to limit the rotation of the filter element.

Optionally, the limiting structure includes a limiting rib provided on the filter element, and a limiting groove provided on the inner wall of the filter, the limiting rib extending into the limiting groove.

Optionally, the filter chamber has a water outlet communicating with the water outlet, the filter element includes a support and a filter screen, the support is connected to the sealing head, the filter screen is installed on the support, and Cover the water outlet.

Optionally, the valve body is further provided with an inner leakage cavity for installing the inner leakage device, and the water passage is communicated with the inner leakage cavity.

Optionally, the filter screen is arranged in an arc shape, and the arc port faces the water inlet.

Optionally, the filter element further includes an impurity adsorption element, and the impurity adsorption element is arranged on the bracket, or the impurity adsorption element is arranged in the sealing head and extends into the bracket.

Optionally, the impurity adsorption member is provided in a rod shape.

Optionally, the impurity adsorption member is a magnet or activated carbon.

Optionally, an accommodating cavity is formed in the sealing head, and the accommodating cavity communicates with the filter chamber.

Optionally, the filter element and the sealing head are detachably connected.

Optionally, one of the sealing head and the filter element is provided with an annular clamping groove, and the other is provided with a clamping buckle that is engaged with the annular clamping groove.

Optionally, a limit slot is further provided on the inner wall of the filter chamber opposite to the installation port, and the limit slot is used for inserting the filter element.

The utility model also proposes a water heater, which includes a casing and a safety valve, the safety valve is mounted on the casing, and the safety valve includes

a valve body, which has a water inlet, a water outlet, and a filter chamber arranged on one side of the water inlet, the valve body is further provided with an installation port, and the installation port communicates with the filter chamber;

a filter element mounted on the filter chamber from the mounting port; and

The sealing head is screwed to the inner wall of the installation port, the sealing head has a rotation axis, the filter element is installed on the inner end of the sealing head, and the sealing head is relative to the filter element around the rotation axis rotatable;

Wherein, the filter chamber cooperates with the filter element to limit the rotation of the filter element around the rotation axis.

The technical solution of the utility model is to set the valve body with an installation port communicating with the filter chamber, so that the filter element can be disassembled from the installation port, and by arranging the filter element on the inner end of the sealing head, the sealing head and the filter are realized. The synchronous disassembly and assembly of the filter element and the cooperation between the filter chamber and the filter element limit the rotation of the filter element in the filter chamber, ensure the position of the filter element relative to the filter chamber, and improve the filtering effect; therefore, compared with conventional As for the safety valve, the safety valve of the present application has the advantages of convenient disassembly and assembly of the filter element and good filtering effect.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

1 is a schematic structural diagram of an embodiment of a safety valve of the present invention;

FIG. 2 is a cross-sectional view of the valve body in the embodiment shown in FIG. 1;

Fig. 3 is an exploded view of the embodiment shown in Fig. 1;

Fig. 4 is an exploded view of the sealing head and the filter element in the embodiment shown in Fig. 1;

FIG. 5 is an exploded view of the sealing head in the embodiment shown in FIG. 1 .

Description of reference numbers:

label name label name 10 valve body 11 water intake 12 Outlet 13 Mounting port 14 filter room 15 Limit slot 16 internal leak 20 filter twenty one bracket twenty two filter twenty three Impurity adsorption parts twenty four installation slot 25 snap 30 sealing head 31 thread segment 32 grip segment 33 accommodating cavity 40 Limit structure 41 Limit ribs 50 sealing ring 60 Internal leakage device 70 leakage device

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention, the directional indications are only used to explain a certain posture (such as the accompanying drawings). When the relative positional relationship, movement situation, etc. between the various components shown below), if the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as instructions or Implicit their relative importance or implicitly indicate the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" in the whole text is to include three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or scheme that A and B satisfy at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

The utility model provides a safety valve.

In the embodiment of the present invention, as shown in FIG. 1 and FIG. 2 , the safety valve includes a valve body 10 , a filter element 20 , a sealing head 30 and a limiting structure 40 . Among them, the valve body 10 has a water inlet 11, a water outlet 12, and a filter chamber 14 arranged on one side of the water inlet 11, and the valve body 10 is also provided with an installation port 13, which is communicated with the filter chamber 14; the filter element 20 is installed on the filter chamber 14 from the installation port 13, the sealing head 30 is screwed to the inner wall of the installation port 13, the sealing head 30 has a rotation axis, the filter element 20 is installed on the inner end of the sealing head 30, and the sealing head 30 is relative to the filter The filter element 20 is rotatable about the axis of rotation; wherein, the filter chamber 14 cooperates with the filter element 20 to limit the rotation of the filter element 20 about the axis of rotation.

It should be noted that the safety valve usually includes an internal leakage device 60 and an external leakage device 70. In order to prevent impurities in the water from entering the internal leakage device 60 and/or the external leakage device 70, a filter screen is usually provided at the water inlet of the valve body. to filter impurities in the water. However, for the filter screen installed in this way, when cleaning the filter screen, the safety valve needs to be completely disassembled, and then the filter screen is taken out from the water inlet of the safety valve, which is very inconvenient to operate.

In view of the above problems, the technical solution of the present invention provides a mounting port 13 on the valve body 10 that communicates with the filter chamber 14 . The threaded connection can seal the installation port 13. At the same time, since the filter element 20 is arranged at the inner end of the sealing head 30 (that is, the end of the sealing head 30 facing the filter chamber 14 ), when cleaning the filter element 20 , the sealing head 30 only needs to be removed from the valve body 10 , the filter element 20 can be taken out at the same time without removing the safety valve as a whole, and the operation is simple and convenient. Among them, the sealing head 30 is rotatable relative to the filter element 20 around the rotation axis, and the filter chamber 14 cooperates with the filter element 20 to limit the rotation of the filter element 20 around the rotation axis. Therefore, the disassembly and assembly of the sealing head 30 will not drive the filter element. The filter element 20 rotates in the filter chamber 14 to limit the position of the filter element 20 in the filter chamber 14, so that the filter element 20 can be installed in the filter chamber 14 in an expected state to filter impurities, thereby obtaining the best filtering effect. It can be seen that, compared with the conventional safety valve, the safety valve of the present application has the advantages of convenient disassembly and assembly of the filter element 20 and good filtering effect.

It should be noted that the valve body 10 is also provided with an inner leakage cavity 16 for installing the inner leakage device 60 , and the filter chamber 14 refers to the corresponding area in the valve body 10 for the filter element 20 to be installed, because the filter element 20 needs to filter the water Therefore, the filter chamber 14 specifically refers to the area between the water inlet 11 and the inner leakage cavity 16 in the valve body 10 .

It should also be noted that, since the sealing head 30 is threadedly connected to the inner wall of the installation port 13 , the axis of the threaded structure is the rotation axis of the sealing head 30 .

Further, in this embodiment, a limit slot 15 is further provided on the inner wall of the filter chamber 14 on the side opposite to the installation port 13 , and the limit slot 15 is used for the filter element 20 to be inserted. It can be understood that the setting of the limit slot 15 can not only increase the volume of the filter chamber 14 to increase the filtering area of the filter element 20, but also the limit slot 15 can limit the filter element 20, so as to improve the filter element 20 in the filter element 20. Stability of installation within valve body 10.

Further, as shown in FIG. 4 and FIG. 5 , in this embodiment, the filter element 20 cooperates with the inner wall of the filter chamber 14 through the limiting structure 40 to limit the rotation of the filter element 20 . It can be understood that the rotation of the filter element 20 around the rotation axis is restricted by the limiting structure 40 , the structure design is simple, and the implementation is convenient. Of course, the design of the present application is not limited to this. In other embodiments of the present application, the inner wall of the filter chamber 14 can also be matched with the filter element 20 to limit the rotation of the filter element 20, such as setting the filter element 20 to a square structure. , the filter chamber 14 is correspondingly set to a square structure, then, after the filter element 20 is inserted into the filter chamber 14, it cannot rotate around the rotation axis of the sealing head 30 any more. Of course, the filter element 20 can also be configured as an elliptical structure, a polygonal structure, a special-shaped structure, etc., and the filter chamber 14 is set to a corresponding structure corresponding to the filter element 20 to limit the rotation of the filter element 20 around the rotation axis.

Exemplarily, in this embodiment, the bracket 21 is provided in a cylindrical shape.

Specifically, in this embodiment, the limiting structure 40 includes a limiting rib 41 provided on the filter element 20 and a limiting groove (not shown) provided on the inner wall of the filter chamber 14 . The limiting rib 41 into the limit slot. It can be understood that the filter element 20 is limited by the cooperation between the limit ribs 41 and the limit groove, the structure design is simple, and the installation of the filter element 20 in the filter chamber is convenient; The slot can increase the volume of the filter chamber 14 appropriately, so as to ensure that the filter area of the filter element 20 will not be reduced. 20 can withstand greater impact of water flow, and ensure the service life of the filter element 20. Of course, the design of the present application is not limited to this. In other embodiments of the present application, the limiting ribs 41 may also be provided on the inner wall of the filter chamber 14 , and the limiting grooves may be provided on the filter element 20 . It should also be noted that, in other embodiments of the present application, the limiting structure may also be configured as an elastic snap-fit structure, a magnetic attraction structure, or the like.

Optionally, in the present embodiment, three limiting ribs 41 are provided on the filter element 20 to enhance the position limit of the filter element 20 , and can play a foolproof role to ensure that the filter element 20 is in the filter chamber 14 The accuracy of installation, such as the orientation and rotation direction of the filter element 20 in the filter chamber 14 . Of course, in other embodiments, one, two, four or even more limiting ribs 41 may also be provided on the filter element 20 .

Further, in this embodiment, the filter chamber 14 has a water passage (not shown) that communicates with the water outlet 12 , the filter element 20 includes a bracket 21 and a filter screen 22 , the bracket 21 is connected with the sealing head 30 , the filter screen 22 It is installed on the bracket 21 and covers the water outlet. It can be understood that the bracket 21 can be connected to the sealing head 30 and provide support for the filter screen 22, so that the filter screen 22 can cover the water passage of the filter chamber 14 and ensure the filtering effect of impurities in the water. Specifically, the water passage communicates with the inner leakage cavity 16 . Of course, the design of the present application is not limited to this, and in other embodiments of the present application, the filter screen 22 may also cover the communication port where the filter chamber 14 communicates with the water inlet 11 .

Optionally, in this embodiment, the filter screen 22 is arranged in an arc shape, and the arc opening faces the water inlet 11 . It can be understood that setting the filter screen 22 in an arc shape with the arc opening facing the water inlet 11 can increase the surface area of the filter screen 22, increase the filter holes that can be set on the filter screen 22, or improve the pore size of the filter holes on the filter screen 22. So as to obtain better filtering effect. Of course, the design of the present application is not limited to this, and in other embodiments of the present application, the filter screen 22 may also be arranged in a plane.

Specifically, in this embodiment, the aperture of the filter screen 22 is at least 5 meshes and at most 500 meshes. That is, the aperture of the filter screen 22 may be 5 mesh, 50 mesh, 100 mesh, 200 mesh, 300 mesh, 400 mesh, or 500 mesh.

Exemplarily, the filter screen 22 can be made of plastic, such as nylon, etc., or can be made of metal, such as stainless steel.

Specifically, in this embodiment, the filter screen 22 is detachably connected to the bracket 21 , and this arrangement can facilitate the user to clean or replace the filter screen 22 and prolong the service life of the filter element 20 .

Further, the filter element 20 of this embodiment further includes an impurity adsorption element 23 , and the impurity adsorption element 23 is arranged on the bracket 21 or the sealing head 30 and extends into the bracket 21 . It can be understood that by setting the impurity adsorption member 23 on the bracket 21 or the sealing head 30, the impurities in the water can be adsorbed, and the use of the filter screen 22 can further reduce the impurities entering the internal leakage device 60 and improve the safety of the safety valve. Exemplarily, in this embodiment, the impurity adsorption member 23 is provided on the bracket 21 , of course, in other embodiments, the impurity adsorption member 23 may also be provided in the sealing head 30 .

Referring to FIG. 5 , in this embodiment, an installation slot 24 is provided on the side of the bracket 21 away from the installation opening 13 , and the impurity adsorption member 23 is in an interference fit with the installation slot 24 . It can be understood that by setting the impurity adsorption member 23 to be an interference fit with the installation slot 24, the detachable connection between the impurity adsorption member 23 and the bracket 21 can be realized, so that after the filter member 20 is removed, the impurity adsorption member 23 can be removed so as to facilitate the Cleaning or replacement of the impurity adsorption member 23 . Of course, in other embodiments, the impurity adsorption member 23 can also be detachably connected to the bracket 21 by means of snap connection, screw connection, fastener fastening, magnetic attraction, or the like. It should be noted that, in other embodiments, the impurity adsorption member 23 may also be fixedly connected to the bracket 21 .

Further, in this embodiment, the impurity adsorption member 23 is provided in a rod shape. It can be understood that setting the impurity adsorption member 23 in a rod shape can increase the length of the impurity adsorption member 23 and increase the surface area of the impurity adsorption member 23, thereby improving the adsorption capacity of the impurity adsorption member 23, and at the same time, it can prevent the impurity adsorption member 23 from being stuck on the bracket 21. The expanded area is too large, which affects the water passing ability of the filter element 20 , and is also conducive to the disassembly and assembly of the impurity adsorption element 23 . Of course, in other embodiments, the impurity adsorption member 23 may also be provided in a block shape, a plane shape, or a mesh shape.

Exemplarily, in this embodiment, the impurity adsorbing member 23 may be a magnet or activated carbon. When the impurity adsorbing member 23 is a magnet, it can adsorb metal impurities in water, and when the impurity adsorbing member 23 is activated carbon, it can adsorb metal impurities in water. Absorbs small particles of impurities in water.

Specifically, in this embodiment, the impurity adsorption member 23 is located between the filter screen 22 and the water inlet 11 . It can be understood that, with this arrangement, the water flowing into the water inlet 11 can be adsorbed by the impurity adsorber 23 before being filtered by the filter screen 22 , and then pass through the filter screen 22 . In this way, the impurity adsorber 23 can reduce impurities in the water, thereby reducing the risk of the filter screen 22 being blocked by impurities, prolonging the service life of the filter screen 22 , thereby increasing the time interval between two cleanings of the filter screen 22 and improving user experience. In addition, when the safety valve is closed and the impurities filtered by the filter screen 22 are freed in the water, they will be adsorbed by the impurity adsorption member 23 again, thereby further reducing the risk of the filter screen 22 being blocked. Of course, the design of the present application is not limited to this, and in other embodiments of the present application, the impurity adsorption member 23 may also be disposed at other positions, such as the side of the filter screen 22 facing away from the water inlet 11 .

Continuing to refer to FIG. 1 and FIG. 2 , a accommodating cavity 33 is formed in the sealing head 30 , and the accommodating cavity 33 communicates with the filter chamber 14 . By arranging the accommodating cavity 33 in the sealing head 30 that communicates with the filter chamber 14, the water entering the water inlet 11 can flow into the accommodating cavity 33, and the impurities in the water will be deposited on the bottom of the accommodating cavity 33; The filtered impurities also flow into the accommodating cavity 33 and deposit. That is, by arranging the accommodating cavity 33 on the sealing head 30, the accommodating capacity of the impurities of the safety valve can be increased, and the time of excessive impurities, which causes the filter screen 22 to be blocked or the water flux to become smaller, increases the number of filter elements 20. The time interval required for two cleanings is conducive to improving the user experience.

Further, in this embodiment, the filter element 20 and the sealing head 30 are detachably connected. In this way, after the filter element 20 is taken out from the valve body 10, the filter element 20 and the sealing head 30 can be disassembled, so as to facilitate cleaning and replacement of the filter element 20, simplify user operations, and help improve user experience. Of course, the design of the present application is not limited to this, and in other embodiments of the present application, the filter element 20 and the sealing head 30 may also be set to be non-detachable connection.

Specifically, as shown in FIG. 1 , FIG. 4 and FIG. 5 , in this embodiment, one of the sealing head 30 and the filter element 20 is provided with an annular snap groove (not shown), and the other is provided with an annular snap slot (not shown). Buckles 24 that are snapped together with the grooves. In this way, through the cooperation between the buckle 24 and the annular groove, the detachable connection between the sealing head 30 and the filter element 20 can be realized by the way of clamping, and the rotational connection between the sealing head 30 and the filter element 20 can be realized. The mutual limitation of the sealing heads 30 in the axial direction. Exemplarily, in this embodiment, the sealing head 30 may be provided with an annular snap groove, and the filter element 20 may be provided with a snap 24 matched with the annular snap groove. Specifically, the bracket 21 opens toward the sealing head 30 . The inner circumference of the opening is provided with a plurality of buckles 24 , and the sealing head 30 is inserted into the bracket 21 , so that the annular groove on the sealing head 30 is engaged with the buckles 24 . Alternatively, the filter element 20 may be provided with an annular groove, and the sealing head 30 may be provided with a snap. It should be noted that the design of the present application is not limited to this. In other embodiments of the present application, the filter element 20 and the sealing head 30 may also be connected by means of screw connection, plug connection, fastener fastening, magnetic attraction, etc. Realize detachable connection.

Specifically, in this embodiment, the sealing head 30 includes a threaded section 31 and a holding section 32 , the threaded section 31 is threadedly connected to the inner wall of the installation port 13 , and the annular clamp is provided at the end facing the filter element 20 . The holding section 32 is arranged on the side of the threaded section 31 facing away from the valve body 10 . The holding section 32 is provided with a force-applying plane to facilitate the user to disassemble and assemble the sealing head 30 .

In order to improve the stability of the connection between the sealing head 30 and the valve body 10 , in this embodiment, a sealing ring 50 is further provided between the sealing head 30 and the valve body 10 . Specifically, the sealing ring 50 is sleeved on the threaded section 31 the end of .

The utility model also proposes a water heater, the water heater includes a casing and a safety valve, the safety valve is mounted on the casing, and the specific structure of the safety valve refers to the above-mentioned embodiment, because the water heater adopts all the technical solutions of all the above-mentioned embodiments. , therefore at least all the beneficial effects brought by the technical solutions of the above embodiments are provided, which will not be repeated here.

The above descriptions are only the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Any equivalent structure transformation made by using the contents of the present utility model description and accompanying drawings under the inventive concept of the present utility model, or Direct/indirect applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (14)

1. A safety valve is characterized by comprising

The valve body is provided with a water inlet, a water outlet and a filtering chamber arranged on one side of the water inlet, and is also provided with a mounting opening which is communicated with the filtering chamber;

a filter member mounted to the filter chamber from the mounting port; and

a sealing head threadably attached to an inner wall of the mounting opening, the sealing head having an axis of rotation, the filter element being mounted to an inner end of the sealing head, the sealing head being rotatable relative to the filter element about the axis of rotation;

wherein the filter chamber cooperates with the filter element to restrict rotation of the filter element about the axis of rotation.

2. A safety valve according to claim 1, wherein said filter element engages with an inner wall of said filter chamber through a stopper structure to restrict rotation of said filter element.

3. The safety valve according to claim 2, wherein the limiting structure comprises a limiting rib provided on the filter member and a limiting groove provided on an inner wall of the filter chamber, the limiting rib extending into the limiting groove.

4. The safety valve of claim 2, wherein said filtering chamber has a water passage communicating with said water outlet, and said filtering member includes a bracket connected to said sealing head and a screen mounted to said bracket and covering said water passage.

5. The safety valve of claim 4, wherein an inner drain cavity is provided in the valve body for mounting an inner drain device, and the water overflow port is communicated with the inner drain cavity.

6. The safety valve of claim 4, wherein the screen is arcuate with the mouth facing the inlet.

7. The safety valve according to claim 4, wherein the filter member further comprises a foreign substance adsorbing member provided in the holder or the sealing head and extending into the holder.

8. The safety valve of claim 7, wherein the impurity adsorbing member is provided in a rod shape.

9. The safety valve of claim 7, wherein the impurity adsorbing member is a magnet or activated carbon.

10. A safety valve according to claim 7, wherein a receiving chamber is formed in said sealing head, said receiving chamber communicating with said filtering chamber.

11. A safety valve according to any of claims 1 to 10, wherein the filter element is detachably connected to the sealing head.

12. A safety valve according to claim 11 wherein one of the sealing head and the filter element is provided with an annular groove and the other is provided with a catch for engaging the annular groove.

13. A safety valve according to claim 1, wherein a side inner wall of said filtering chamber opposite to said mounting opening is further provided with a limit insertion groove into which said filtering member is inserted.

14. A water heater comprising a housing and a safety valve as claimed in any one of claims 1 to 13, the safety valve being provided in the housing.

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