CN201802919U - Self-locking control water valve for solar water heater water tank - Google Patents

Abstract

The utility model relates to a water valve, in particular to a self-locking control water valve for the water tank of a solar water heater, comprising a valve body, a valve plug, a sealing cap, a floating ball, a pressure level and a fixing shaft. The structural design of the water valve is as follows: a tee joint formed by a water inlet and outlet passage, a watering passage and a draining passage is arranged in the inner cavity of the valve body, and an auxiliary hole is arranged on the wall body opposite to the draining passage and is connected with the sealing cap; an inward valve plug cavity is arranged in the draining passage and the valve plug is arranged in the inward valve plug cavity, an outward valve plug cavity is arranged in the watering passage and the valve plug is arranged in the outward valve plug cavity, a shaft seat is arranged on the outer side wall body of the valve plug cavity for mounting the fixing shaft, and a pressure lever shifting hole is arranged on the wall body opposite to the shaft seat; the pressure lever is a bending lever body, one end of the pressure lever is connected with the floating ball and the end part of the other end of the pressure lever is provided with a shaft sleeve which is connected with the fixing shaft by the pressure lever shifting hole. The water valve has the benefits that: the structure is simple, the cost is low, only one valve on the water tank of the solar water heater can control in and out of cold water and hot water, and the valve enables the water tank to be in an automatic watering state.

Description

Self-locking control water valve for solar water heater water tank

technical field

The utility model relates to a water valve, in particular to a self-locking water valve used for controlling the entry and exit of upper and lower water in a solar water heater water tank.

Background technique

At present, solar water heaters are popularized and applied because of their convenient use and obvious energy-saving effect. For the convenience of lighting, solar water heaters are usually installed on the roof and connected to the indoor water inlet and outlet pipes through upper and lower water pipes. In use, how the upper and lower water enters and exits the water tank and how to close the water supply valve in time has become a problem that users are more concerned about. Some water heater tanks are equipped with a return pipe leading to the room, that is, when the water heater tank is full, water overflows from the return pipe to remind the user to close the water supply valve. The advantage is that the structure is simple and the cost is low. The disadvantages are; Due to various reasons, people often cannot close the water valve in time, resulting in "water flooding Jinshan", which not only brings inconvenience and loss to users, but also causes a lot of waste of water resources. Some automatic control devices such as water pressure sensors and electromagnetic valves are installed on water heaters, but this device has a high cost and is extremely inconvenient to maintain.

Contents of the invention

In order to solve the problems existing in the above-mentioned solar water heater, the utility model provides a simple structure, low cost, in the solar water heater water tank, can control the inflow and outflow of the upper and lower water in the water tank, and automatically shut down the solar water heater when the water tank is full of water. Self-locking control water valve.

In order to achieve the above purpose, the technical solution adopted by the utility model is: it includes a valve body, a valve plug, a cover, a floating ball, a pressure rod and a fixed shaft, and its structural design is: the inner cavity of the valve body is a water inlet and outlet channel, and the water supply For the tee combination of channel and sewer channel, a process hole is provided on the wall opposite to the sewer channel, and an inward valve plug cavity is provided in the sewer channel, and its structure is a concave spherical hole for setting the valve plug. There is an outward valve plug chamber in the upper water channel, and its structure is a concave spherical hole, which is used to set the valve plug. A shaft seat is arranged on the outer wall of the valve plug chamber for installing a fixed shaft, opposite to the shaft seat. The pressure rod movement hole is set on the wall of the valve; the valve plug is a ball plug, which is arranged in two valve plug cavities in the valve body, and is combined with the valve body to act as a one-way valve; The process hole on the body is connected to close the process hole; the pressure rod is a bent rod body, one end is connected to the floating ball, and the other end is provided with a sleeve, which is connected to the fixed shaft through the pressure rod moving hole.

The working principle of the utility model is: the utility model is installed in the water tank of the solar water heater. When the water tank is in the state of not using water, the water inlet valve is in the normally open state, and cold water flows in from the inlet and outlet of the valve body. Under the action of water pressure, the water channel The valve plug in the upper water channel withstands the concave spherical surface hole and closes the channel; the valve plug in the upper water channel leaves the concave spherical surface hole to open the channel, and cold water enters the water tank; when the water level in the water tank rises to the set height, the floating ball drives the pressing rod Turn, the pressure rod presses against the valve plug, the valve plug withstands the concave spherical hole, closes the water inlet channel, and automatically cuts off the water. When the water tank is in the water state, close the water inlet valve, open the water outlet valve, under the action of water pressure, the valve plug in the water channel leaves the concave spherical surface hole, opens the channel, and hot water flows out of the water tank; after the hot water is used, close it When the water outlet valve is opened and the water inlet valve is opened, the water tank can be in the state of automatic water replenishment.

The beneficial effects of the utility model are: simple structure, low cost, a valve in the solar water heater water tank can control the inflow and outflow of cold water and hot water in the water tank, and make the water tank in the state of automatic water replenishment.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a sectional view of the valve body of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model will be further described:

As shown in Figure 1 and Figure 2, a self-locking control water valve for a solar water heater tank is composed of a valve body 1, a valve plug 2, a fixed shaft 3, a cover 4, a pressure rod 5 and a floating ball 6, and its structure The design is: the valve body 1 inner chamber is a three-way combination of a water inlet and outlet passage 11, a water passage 12, and an upper water passage 13, and a process hole 14 is provided on the opposite wall of the water passage 12. There is an inward spool cavity 15 with a concave spherical hole 151 for setting the valve plug 2, and an outward spool cavity 16 in the upper water channel 13 with a concave spherical hole 161. For setting the valve plug 2, a shaft seat 17 is set on the outer wall of the valve plug cavity 16 for installing the fixed shaft 3, and a pressure rod moving hole 18 is set on the wall opposite to the shaft seat 17; the valve plug 2 is a The ball plug is set at the two valve plug cavities 15 and 16 in the valve body 1, and is combined with the valve body 1 to act as a one-way valve; the cover 4 is a sealing connector connected with the process hole 14 on the valve body 1 , closing the process hole 14; the pressure rod 5 is a bent rod body, one end is connected to the floating ball 6, and the other end is provided with a shaft sleeve 51, which is connected with the fixed shaft 3 through the pressure rod hole 18.

Claims (4)

1. A self-locking control water valve for a solar water heater water tank, consisting of a valve body (1), a valve plug (2), a fixed shaft (3), a cover (4), a pressing rod (5) and a floating ball (6 ), which is characterized in that: the inner cavity of the valve body (1) is a three-way combination of an inlet and outlet channel (11), a lower channel (12), and an upper water channel (13), and the opposite wall of the lower channel (12) There is a process hole (14) on the top; an inward valve plug cavity (15) is provided in the water channel (12), which is combined with the valve plug (2) to act as a one-way valve; in the water channel (13) An outward plug chamber (16) is provided in the center, which is combined with the valve plug (2) to act as a check valve; an axle seat (17) is set on the outer wall of the valve plug chamber (16), and the axle seat ( 17) offer pressure rod movement hole (18) on the opposite wall body. The cover (4) is a sealing connecting piece, which is connected with the process hole (14) on the valve body (1), and closes the process hole (14). Squeeze bar (5) is the rod body of a bending, and one end is connected with floating ball (6), and the other end end is provided with axle sleeve (51), is connected with fixed shaft (3) by pressure bar hole (18). 2. A self-locking control water valve for a solar water heater water tank according to claim 1, characterized in that: the valve plug cavity (15) is a concave spherical hole (151). 3. A self-locking control water valve for a solar water heater water tank according to claim 1, characterized in that: the valve plug cavity (16) is a concave spherical hole (161). 4. A self-locking control water valve for a solar water heater water tank according to claim 1, characterized in that: said valve plug (2) is a ball plug.

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