Lock ball valve blowdown filter

Abstract

The utility model discloses a blow-down filter with a locking ball valve, which belongs to the technical field of heating filters and comprises a valve body, a filter screen pipe communicated with the valve body is mounted on one side of the valve body, and a filter screen is mounted in the filter screen pipe. A magnetic locking ball valve is mounted at the end part of the filter screen pipe and is connected with a drain outlet; the magnetic locking ball valve is opened through a locking valve key. According to the blow-down filter with the locking ball valve, the filter screen and heat supply facilities of a user house are subjected to back flushing by utilizing the pressure of return water, and the back flushing of the heat supply facilities of the user house can be quickly completed, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating filters, in particular to a locking ball valve sewage filter. Background Art

[0002] Before the heating season arrives, the staff of the heat exchange station prepares for the heating season. They need to clean all the household filters in the community, and the terminal buildings need to be cleaned 2-3 times. At present, the operation process of cleaning the filter is: first close the valves before and after the filter, unscrew the valve cover a little to release the pressure, and after the pressure is reduced, remove the valve cover to take out the filter for cleaning. After cleaning, put the filter back, install the valve cover, and finally open the valves before and after the filter. The staff needs to carry tools such as wrenches and pipe pliers to remove the filter valve cover in the pipe well. The operating space of some pipe wells is narrow, and cleaning the filter is time-consuming and laborious. Under ideal circumstances (sufficient operating space, no other pipes near the filter are blocked, and there are valves before and after the filter), it takes 5-8 minutes to clean a filter. The workload is huge. The thermal staff is short of staff and needs to recruit seasonal workers to work with the thermal staff to prepare for heating. Utility Model Content

[0003] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide a locking ball valve sewage filter, which uses the return water pressure to backwash the filter screen and the user's home heating facilities, and can quickly complete the backwashing of the user's home heating facilities to improve work efficiency.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] Provided is a locking ball valve sewage filter, comprising a valve body, a filter screen pipe connected to the valve body is installed on one side of the valve body, and a filter screen is installed in the filter screen pipe;

[0006] A magnetic locking ball valve is installed at the end of the filter pipe, and the magnetic locking ball valve is connected to a sewage outlet; the magnetic locking ball valve is opened by a locking valve key.

[0007] Furthermore, the magnetic locking ball valve includes a T-shaped locking drain valve tube, a T-shaped cavity is provided in the T-shaped locking drain valve tube, the T-shaped cavity is divided into a main cavity and an auxiliary cavity, a sphere is provided in the main cavity, a circular through hole is provided on the sphere; a valve stem is provided in the auxiliary cavity, the valve stem is connected to the ball, and the valve stem can be driven to rotate by the locking valve key.

[0008] Furthermore, the top end of the valve stem extends out of the auxiliary cavity, and a locking valve is provided on the periphery of the valve stem, and a positioning piece is provided on a side of the locking valve close to the T-shaped locking drain valve pipe;

[0009] The T-shaped locking drain valve pipe is provided with a magnetic pin, and the magnetic pin can be pushed into the positioning piece under the action of the pin spring.

[0010] Furthermore, the locking valve key comprises a key body, and the key body can be sleeved on the periphery of the locking valve, and a key magnet point is arranged in the key body.

[0011] Furthermore, the key body is also connected to a key handle.

[0012] Furthermore, the magnetic locking ball valve is connected to the valve cover of the valve body as a whole, and the valve cover is connected to the filter pipe by a standard thread.

[0013] Furthermore, a valve cover rubber pad is provided between the valve cover and the magnetic locking ball valve.

[0014] Furthermore, a valve stem rubber pad is provided at the connection between the valve stem and the locking valve.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The locking ball valve sewage filter of the utility model example, when the hot water of the heating station enters the filter through the water inlet pipe, the filter is equipped with a filter screen inside, and the filter screen intercepts the impurity particles inside. The filter screen will be slowly blocked in the continuous interception, and the resistance will increase. The insufficient flow in the user's home causes the heating to be not hot. At this time, the locking valve key is held to open the valve and close the valve in front of the filter, and the return water pressure can be used to reversely flush the filter screen and the user's home heating facilities, which can quickly complete the reverse flushing of the user's home heating facilities, improve work efficiency, and reduce personnel and time costs;

[0017] 2. The locking ball valve sewage filter of the utility model example, the magnetic locking ball valve is in a natural state, the magnetic pin is ejected by the pin spring to jam the positioning piece, so that the valve stem will not rotate, the key magnet is placed on the locking valve key to align the magnetic pin at the valve body position, and the magnetic pin is pressed down into the magnetic locking ball valve by using the principle that the same poles of magnets repel each other, so that the locking valve can rotate, thus controlling the opening and closing of the ball, thereby preventing the valve from being opened and closed at will;

[0018] 3. The locking ball valve sewage filter of the utility model example adds the structure of the valve cover rubber pad and the valve stem rubber pad to increase the sealing performance of the filter and prevent water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of a magnetic locking ball valve.

[0022] In the figure: 1-valve body, 11-filter tube, 12-filter, 13-valve cover, 14-valve cover rubber pad, 15-water inlet pipe, 16-water outlet pipe, 2-magnetic locking ball valve, 21-T-type locking sewage valve pipe, 22-ball, 23-valve stem, 24-locking valve, 25-positioning plate, 26-magnetic pin, 27-pin spring, 28-valve stem rubber pad, 3-locking valve key, 31-key body, 32-key magnet point, 33-key handle, 4-sewage outlet. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] like Figure 1 As shown, this embodiment provides a locking ball valve sewage filter, including a valve body 1, a magnetic locking ball valve 2, a sewage outlet 4 and a locking valve key 3. A filter tube 11 connected to the valve body 1 is installed on one side of the valve body 1, and a filter 12 is installed in the filter tube 11; one end of the magnetic locking ball valve 2 is connected to the filter tube 11, and the other end is connected to the sewage outlet 4. The locking valve key 3 can be used to lock the magnetic locking ball valve 2, and impurities can be discharged from the filter 12 through the magnetic locking ball valve 2 and the sewage outlet 4, thereby realizing rapid cleaning of the filter.

[0026] Specifically, one side of the valve body 1 is a water inlet pipe 15, and the other side is a water outlet pipe 16, and the valve body 1 can also be installed with the help of a water flow direction arrow.

[0027] The magnetic locking ball valve 2 includes a T-shaped locking drain valve pipe 21, which is connected to the valve cover 13 of the valve body 1 as a whole, and the valve cover 13 is connected to the filter pipe 11 by a standard thread. In addition, a valve cover rubber gasket 14 is provided between the valve cover 13 and the magnetic locking ball valve 2 to increase the sealing performance and prevent water leakage.

[0028] like Figure 2As shown, a T-shaped cavity is provided in the T-type locking drain valve pipe 21, and the T-shaped cavity is divided into a main cavity and an auxiliary cavity. A ball 22 is provided in the main cavity, and a circular through hole is provided on the ball 22; a valve stem 23 is provided in the auxiliary cavity, and the valve stem 23 is connected to the ball 22. The valve stem 23 can drive the rotation of the ball 22 to control the opening and closing of the magnetic locking ball valve 2, and the valve stem 23 can be driven to rotate by the locking valve key 3. The top of the valve stem 23 extends out of the auxiliary cavity, and a locking valve 24 is provided on the periphery of the valve stem 23. A positioning piece 25 is provided on the side of the locking valve 24 close to the T-type locking drain valve pipe 21; a magnetic pin 26 is provided on the T-type locking drain valve pipe 21, and the magnetic pin 26 can be pushed into the positioning piece 25 under the action of the pin spring 27. In the natural state, the magnetic pin 26 of the magnetic locking ball valve 2 is ejected by the pin spring 27 to clamp the positioning piece 25, so that the valve stem 23 cannot rotate.

[0029] A valve stem rubber pad 28 is provided at the connection between the valve stem 23 and the lock valve 24 to increase the sealing performance and prevent water leakage.

[0030] The locking valve key 3 includes a key body 31, which can be sleeved on the periphery of the locking valve 24. A key magnet point 32 is provided in the key body 31. The key magnet point 32 is of the same polarity as the magnetic pin 26. Based on the principle that magnets of the same polarity repel each other, when the key body 31 is buckled on the locking valve 24, the magnetic pin 26 is pushed downward into the magnetic locking ball valve 2, and the locking valve 24 and the magnetic locking ball valve 2 lose their constraints, so that the locking valve 24 can rotate, thereby controlling the opening and closing of the ball 22, thereby preventing the valve from being opened and closed arbitrarily. In this embodiment, the key body 31 is octagonal, and a key handle 33 is also connected to the key body 31.

[0031] In this embodiment, the sewage outlet 4 is a pagoda sewage outlet.

[0032] Working principle:

[0033] The hot water from the thermal power station enters the filter through the water inlet pipe 15, and the impurities are intercepted by the filter 12. The filtered water flows from the filter pipe 11 to the water outlet pipe 16 to complete the filtration. When the magnetic locking ball valve 2 is closed, the pin spring 27 pushes the magnetic pin 26 into the positioning piece 25, so that the locking ball valve cannot rotate. During the continuous interception and filtration, the filter 12 will slowly become blocked. At this time, it is necessary to align the key magnet point 32 of the locking valve key 3 with the magnetic pin 26 at the corresponding position of the magnetic locking ball valve 2. Using the principle of like poles repelling each other, the magnetic pin 26 is pressed down below the positioning piece 25, and the key handle 33 is turned. The key body 31 drives the valve stem 23 to rotate, and the valve stem 23 drives the ball 22 to rotate, thereby opening the magnetic locking ball valve 2. After the water flows from the water inlet pipe 15 into the filter pipe 11, it is discharged by the T-type locking sewage valve pipe 21 and the sewage outlet 4, and the blocked filter 12 is cleaned by water pressure. After cleaning is completed, the lock valve 24 is closed and the water flow is restored from the water inlet pipe 15 to the filter pipe 11, impurities are intercepted by the filter 12, and the filtered water flows from the filter pipe 11 to the water outlet pipe 16 for further filtering.

[0034] The locking ball valve sewage filter illustrated in this embodiment utilizes the return water pressure to backwash the filter screen and the heating facilities in the user's home, and can quickly complete the backwashing of the heating facilities in the user's home, thereby improving work efficiency and reducing manpower and time costs.

[0035] Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A locking ball valve sewage filter, characterized in that: It comprises a valve body (1), one side of the valve body (1) is provided with a filter pipe (11) in communication with the valve body (1), and a filter (12) is provided in the filter pipe (11); A magnetic locking ball valve (2) is installed at the end of the filter screen tube (11), and the magnetic locking ball valve (2) is connected to a sewage outlet (4); the magnetic locking ball valve (2) is opened by a locking valve key (3); The magnetic locking ball valve (2) comprises a T-shaped locking drain valve pipe (21), wherein a T-shaped cavity is arranged in the T-shaped locking drain valve pipe (21), wherein the T-shaped cavity is divided into a main cavity and an auxiliary cavity, wherein a ball (22) is arranged in the main cavity, wherein a circular through hole is arranged through the ball (22); wherein a valve stem (23) is arranged in the auxiliary cavity, wherein the valve stem (23) is connected to the ball (22), and wherein the valve stem (23) can be driven to rotate by a locking valve key (3); The top end of the valve stem (23) extends out of the auxiliary cavity, and a locking valve (24) is provided on the periphery of the valve stem (23), and a positioning piece (25) is provided on a side of the locking valve (24) close to the T-shaped locking drain valve pipe (21); The T-shaped locking drain valve pipe (21) is provided with a magnetic pin (26), and the magnetic pin (26) can be pushed into the positioning piece (25) under the action of the pin spring (27); The locking valve key (3) comprises a key body (31), the key body (31) can be sleeved on the periphery of the locking valve (24), and a key magnet point (32) is provided in the key body (31).

2. A locking ball valve sewage filter according to claim 1, characterized in that: The key body (31) is also connected to a key handle (33).

3. The locking ball valve sewage filter according to claim 1, characterized in that: The magnetic locking ball valve (2) is integrally connected to the valve cover (13) of the valve body (1), and the valve cover (13) is connected to the filter screen tube (11) by means of standard threads.

4. A locking ball valve sewage filter according to claim 3, characterized in that: A valve cover rubber pad (14) is provided between the valve cover (13) and the magnetic locking ball valve (2).

5. The locking ball valve sewage filter according to claim 1, characterized in that: A valve stem rubber pad (28) is provided at the connection between the valve stem (23) and the lock valve (24).

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