CN201875221U - A water heater safety valve - Google Patents

Abstract

The utility model relates to a water heater relief valve, including the valve body, in leak the device, leak device and handle, wherein in leak the device and install in the main entrance of valve body, leak the device and install in the bypass passageway of valve body, the tip at the bypass passageway is installed to the handle, its characterized in that the device has the filter in the water inlet of valve body. The utility model discloses owing to adopted the structure of device filter in the water inlet of relief valve, effectual impurity and the foreign matter of having guaranteed the aquatic can not flow into water heater inner bag and relief valve in, not only improved the reliability of relief valve operation greatly, prolonged the life of relief valve, promoted hydrothermal quality of water in the water heater inner bag moreover, prevented the jam of water heater business turn over water pipe, simultaneously, tear down the water pipe and can wash, change, very facilitate the use, the application is very wide.

Description

A water heater safety valve

technical field

The utility model relates to a safety valve of a water heater, which belongs to the improvement technology of the safety valve of the water heater.

Background technique

The safety valve is a necessary part of all pressurized water heaters. It plays the role of automatically releasing pressure when the water pressure is too high to ensure safety. At present, the safety valves of commercially available water heaters are generally not equipped with filters in the valve, because the impurities and foreign matter contained in the water will enter the interior of the safety valve with the pressure relief of the safety valve. Once deposited on the sealing surface of the safety valve’s leakage channel, It will cause water seepage or water leakage due to poor sealing of the safety valve after recovery. The safety valve is an important part that cannot be disassembled and washed. Once water seepage or water leakage occurs, it will be scrapped as a whole. Affect the normal operation of the water heater, but also affect the safety of consumers.

Contents of the invention

The purpose of this utility model is to consider the above problems and provide a water heater safety valve with reasonable structure, which ensures that impurities and foreign objects in the water will not flow into the safety valve, has high operation reliability, long service life, and prevents water heater inlet and outlet pipes from being blocked.

The technical solution adopted by the utility model is: a water heater safety valve, including a valve body, an internal leakage device, an external leakage device and a handle, wherein the internal leakage device is installed in the main passage of the valve body, and the external leakage device is installed on the valve body. In the bypass channel, the handle is installed at the end of the bypass channel, and it is characterized in that a filter is installed in the water inlet of the valve body.

The filter includes a filter main body and a spherical filter net, wherein the filter main body includes an annular side wall, an arc-shaped reinforcing rib and a top block. The spherical surface of the filter screen has the same curvature and protrudes inward towards the lower large-diameter end of the annular side wall. The top of the filter screen is vertically formed as a top block so that it can be clamped and taken out with pliers when replacing or cleaning the filter. The entire spherical surface of the spherical filter screen is close to the reinforcing rib. And its mouth is embedded in the upper small-diameter end periphery of the annular side wall.

The lower large-diameter end of the annular side wall of the filter is slightly larger than the inner diameter of the water inlet of the valve body, and its top block is pushed outwards and stuck into the water inlet.

The filter main body is a plastic part, the spherical filter net is a corrosion-resistant metal net, and the spherical filter net is integrally injection-molded with the filter main body as an insert.

The mesh size of the spherical filter is 10-100 mesh.

Because the utility model adopts the structure of installing a filter in the water inlet of the safety valve, it effectively ensures that the impurities and foreign matter in the water will not flow into the inner tank of the water heater and the safety valve, and not only greatly improves the reliability of the operation of the safety valve , prolong the service life of the safety valve, and improve the water quality of the hot water in the inner tank of the water heater, preventing the blockage of the water heater inlet and outlet pipes. At the same time, the water pipe can be removed for cleaning and replacement.

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is the structure diagram of the filter of the utility model after rotating 180°

FIG. 3 is a top view of FIG. 2 .

Detailed ways

Embodiments of the utility model are described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the water heater safety valve of the utility model includes a valve body 1, an internal leakage device 2, an external leakage device 3 and a handle 4, wherein the internal leakage device 2 is installed in the main channel 12 of the valve body 1, and the external leakage device 3 is installed In the bypass channel 13 of the valve body 1 , the handle 4 is installed at the end of the bypass channel 13 , wherein a filter 5 is installed in the water inlet 11 of the valve body 1 . The internal leakage device 2 and the external leakage device 3 are prior art, and the structure and working principle will not be detailed here.

As shown in Figures 2 and 3, the filter 5 includes a filter body 51 and a spherical filter screen 52, wherein the filter body 51 includes an annular side wall 511, an arc-shaped rib 512 and a top block 513, and the annular side The upper part of the wall 511 is slightly tapered and the lower part is slightly tapered. The radian of the reinforcing rib 512 is consistent with the spherical radian of the spherical filter screen 52 and protrudes inward towards the lower large-diameter end of the annular side wall 511. The top block 513 is formed vertically at the top so that it can be replaced or Clamp and take out with pliers when cleaning filter 5, the whole spherical surface of spherical filter screen 52 is close to reinforcing rib 512 and its mouth is embedded in the upper small diameter end periphery of annular side wall 511. In order to make the filter fit tightly in the water inlet 11 of the valve body, the lower large-diameter end of the annular side wall 511 of the filter 5 is slightly larger than the inner diameter of the water inlet 11 of the valve body, and its top block 513 is pushed inward and inserted into the water inlet within 11. The mesh size of the spherical filter 52 is 10-100 mesh.

The filter body 51 is a plastic part, the spherical filter 52 is a corrosion-resistant metal mesh such as stainless steel, and the spherical filter 52 is integrally injection-molded with the filter body 51 as an insert.

Claims (5)

1. A water heater safety valve, including a valve body (1), an internal leakage device (2), an external leakage device (3) and a handle (4), wherein the internal leakage device (2) is installed on the main body of the valve body (1). In the channel (12), the leakage device (3) is installed in the bypass channel (13) of the valve body (1), and the handle (4) is installed at the end of the bypass channel (13), and the feature is that the valve A filter (5) is installed in the water inlet (11) of the body (1). 2. The water heater safety valve according to claim 1, characterized in that the filter (5) includes a filter body (51) and a spherical filter net (52), wherein the filter body (51) includes an annular side wall ( 511), arc strip-shaped reinforcing ribs (512) and top block (513), the annular side wall (511) is slightly tapered up and down, and the radian of the reinforcing ribs (512) and the spherical surface of the spherical filter screen (52) The radian is consistent and protrudes toward the lower large-diameter end of the annular side wall (511), and its top vertically forms a top block (513) so that it can be clamped and taken out with pliers when replacing or cleaning the filter (5). The spherical filter screen (52 ) is close to the reinforcing rib (512) and its mouth is embedded in the upper small-diameter end periphery of the annular side wall (511). 3. The water heater safety valve according to claim 2, characterized in that the lower large-diameter end of the annular side wall (511) of the filter (5) is slightly larger than the inner diameter of the water inlet (11) of the valve body, and its top block (513) pushes outwards and snaps into the water inlet (11). 4. The water heater safety valve according to any one of claims 1 to 3, characterized in that the filter body (51) is a plastic part, the spherical filter (52) is a corrosion-resistant metal mesh, and the spherical filter (52) ) is integrally injection molded as an insert and the filter main body (51). 5. The water heater safety valve according to claim 4, characterized in that the mesh size of the spherical filter (52) is 10-100 mesh.

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