CN211083030U

CN211083030U - Float valve

Info

Publication number: CN211083030U
Application number: CN201921368523.6U
Authority: CN
Inventors: 章宪军
Original assignee: Zhejiang Yaqiu Valve Co ltd
Current assignee: Zhejiang Yaqiu Valve Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-07-24
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a float valve, which comprises a first shell and a second shell movably connected with the first shell; the first shell is connected with a water inlet pipe, an upper cavity is arranged inside the first shell, a first piston is arranged in the upper cavity, and a water outlet is formed in the side wall of the upper cavity; the inner part of the second shell is provided with a lower cavity, a second piston is arranged in the lower cavity, and a floating ball is arranged on the lower end face of the second piston. Hydraulic oil is filled in the upper cavity and the lower cavity of the device, so that the floating ball floats upwards to drive the second piston to move upwards, the second piston moves upwards to drive the first piston to move upwards, the water inlet pipe is blocked to prevent water from flowing into the water tank, when the water level descends, the floating ball moves downwards, the second piston moves downwards along with the floating ball, the water inlet pipe is opened, and the water source flows to the water tank, so that the purpose of controlling the water level is achieved; compared with the existing float valve, the device adopts hydraulic transmission instead of lever transmission, and greatly improves the rotation efficiency.

Description

Float valve

Technical Field

The utility model relates to a ball-cock assembly, in particular to can realize water level control's ball-cock assembly structure.

Background

The float valve is widely used in the fields of water level control, water level detection, etc., and in order to achieve the purpose of water level control, the structure of the existing float valve is relatively complicated, for example, chinese invention patent (patent No. 201510552194.0) discloses a float valve, which includes: the valve body is provided with an upper liquid inlet hole communicated with the upper water cavity and the middle water cavity, a lower liquid inlet hole communicated with the lower water cavity and the middle water cavity, a liquid inlet communicated with the upper water cavity and a liquid outlet communicated with the middle water cavity; the drainage tube is connected to the valve body and communicated with the upper water cavity and the lower water cavity; the valve core is arranged in the valve body in a way of moving up and down between a closing position for closing the upper liquid inlet hole and the lower liquid inlet hole and an opening position for opening the upper liquid inlet hole and the lower liquid inlet hole; the lever is provided with a hinged node, a valve core node and a floating ball node, the valve core node is positioned between the hinged node and the floating ball node, and the valve core node is connected with the valve core; the floater, the floater is connected on the floater node. The structure of the float valve is complex, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball-cock assembly to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a float valve comprises a first shell and a second shell movably connected with the first shell; the first shell is connected with a water inlet pipe, a water outlet is formed in the side face of the first shell, an upper cavity is formed in the first shell, and a first piston is arranged in the upper cavity; an external thread opening used for being movably connected with the first shell is formed in one end of the second shell, a lower cavity is formed in the second shell, a sealing cover is arranged at the lower end of the lower cavity, a second piston is arranged in the lower cavity and connected with a connecting rod, and the other end of the connecting rod penetrates through the sealing cover and is movably connected with a floating ball; the upper cavity and the lower cavity are connected and communicated through a through hole, and hydraulic medium is filled between the upper cavity and the lower cavity.

As the utility model discloses a preferred technical scheme: one end of the water inlet pipe extends to the interior of the upper cavity, and the other end of the water inlet pipe is connected with a municipal water supply pipeline.

As the utility model discloses a preferred technical scheme: the water outlet end surface of the water outlet pipe is positioned below the water outlet.

As the utility model discloses a preferred technical scheme: the first shell with be equipped with the annular on the second shell, the annular is located the terminal surface of first shell and second shell junction, and is in be equipped with O shape sealing washer in the annular.

As the utility model discloses a preferred technical scheme: the upper end face of the first piston is provided with a bulge used for sealing the water inlet pipe.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that: 1. compared with the existing float valve, the device adopts hydraulic transmission to replace lever transmission of transmission, thereby greatly improving the rotation efficiency; meanwhile, the problems of abrasion, corrosion and the like of the joint of the fulcrum and the lever and the problem of influence on power transmission due to large friction force during the transmission of the existing lever are solved;

2. as the device is filled with hydraulic medium in the upper cavity and the lower cavity, the floating ball floats upwards to drive the second piston to move upwards, the second piston moves upwards to drive the first piston to move upwards, the water inlet pipe is blocked to prevent water from flowing in, when the water level descends, the floating ball moves downwards, the second piston moves downwards along with the floating ball, the water inlet pipe is opened, the water flows to the water tank through the water outlet, and the purpose of controlling the water level can be achieved; therefore, the float valve has the advantages of convenient use, accurate water level control and the like;

3. due to the adoption of split type combination, the floating ball is simple and convenient to manufacture, convenient to install and replace parts, and higher in sealing performance and water level control performance than similar products.

Drawings

Fig. 1 is a schematic view of the main structure of the present invention.

In the figure: 1. a floating ball; 2. a sealing cover; 3. a second housing; 4. a ring groove; 5. an upper cavity; 6. a first housing; 7. a water inlet pipe; 8. a water outlet; 9. a protrusion; 10. a first piston; 11. An external thread opening; 12. a through hole; 13. a lower cavity; 14. a second piston; 15. a connecting rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the present invention provides an embodiment: a float valve comprises a first shell 6 and a second shell 3 movably connected with the first shell 6; the first shell 6 is connected with a water inlet pipe 7, a water outlet 8 is arranged on the side surface of the first shell 6, an upper cavity 5 is arranged in the first shell 6, and a first piston 10 is arranged in the upper cavity 5; an external thread opening 11 for being movably connected with the first shell 6 is formed in one end of the second shell 3, a lower cavity 13 is formed in the second shell 3, and a sealing cover 2 is arranged at the lower end of the lower cavity 13, so that a second piston 14 can be conveniently installed in the lower cavity 13; a second piston 14 is arranged in the lower cavity 13, the second piston 14 is connected with a connecting rod 15, the other end of the connecting rod 15 penetrates through the sealing cover 2 to be movably connected with the floating ball 1, and the floating ball 1 and the connecting rod 15 are preferably in threaded connection, so that installation and replacement of the floating ball 1 and the connecting rod 15 are realized; the upper cavity 5 and the lower cavity 13 are communicated through a through hole 12, and a hydraulic medium is filled between the upper cavity 5 and the lower cavity 13.

According to the technical scheme, the hydraulic medium is filled in the upper cavity 5 and the lower cavity 13, for example, when the device is used for resident water, the hydraulic medium can be clear water, when the device is used for fire-fighting water, the hydraulic medium can be hydraulic oil and the like, and different hydraulic media can be selected according to the use condition; when the water level rises, the floating ball 1 floats upwards to drive the second piston 14 to move upwards, the second piston 14 moves upwards to drive the first piston 10 to move upwards, the water inlet pipe 7 is blocked to prevent water from flowing into, when the water level falls, the floating ball 1 moves downwards, the second piston 14 moves downwards, the water inlet pipe 7 is opened, the water flows to the water tank through the water outlet 8, and the device adopts a hydraulic medium to realize energy transfer, so that the water level of the floating ball valve is controlled accurately, the control force is large, and the floating ball valve is particularly suitable for the water inlet pipeline of the water tank.

Wherein: one end of the water inlet pipe 7 extends to the interior of the upper cavity 5, and the other end of the water inlet pipe 7 is connected with a municipal water supply pipeline.

Through the technical scheme, the water inlet pipe 7 introduces a water source and introduces the water source into the upper cavity 5, so that the water source is connected and communicated.

Furthermore, the water outlet end surface of the water inlet pipe 7 is positioned below the water outlet 8.

Through the technical scheme, the first piston 10 can be moved upwards to block the water inlet pipe 7 from feeding water into the water tank, and the water outlet of the water outlet 8 is not influenced.

Wherein: first casing 6 with be equipped with annular 4 on the second casing 3, annular 4 is located the terminal surface of first casing 6 and the 3 junctions of second casing, and is in O shape sealing washer is equipped with in the annular 4, utilizes in O shape sealing washer draw-in groove annular 4, then rotates and screws up two casings for the sealing performance of two casing connections can be strengthened, avoids the pressure release to cause the device work to become invalid or the device ability of cutting off the water supply is not enough, swing joint between two casings in addition, makes hydraulic medium's injection convenient, and is convenient for install first piston 10 in first casing 6's inside.

Wherein: the upper end surface of the first piston 10 is provided with a protrusion 9 for sealing the water inlet pipe 7, namely, the protrusion 9 is plugged into the water outlet port of the water inlet pipe 7 to cut off the water source, and the sealing performance between the first piston 10 and the water inlet pipe 7 is further improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A float valve, characterized in that: comprises a first shell (6) and a second shell (3) movably connected with the first shell (6); the first shell (6) is connected with a water inlet pipe (7), a water outlet (8) is formed in the side face of the first shell (6), an upper cavity (5) is formed in the first shell (6), and a first piston (10) is arranged in the upper cavity (5);

an external thread opening (11) used for being movably connected with the first shell (6) is formed in one end of the second shell (3), a lower cavity (13) is formed in the second shell (3), a sealing cover (2) is arranged at the lower end of the lower cavity (13), a second piston (14) is arranged in the lower cavity (13), the second piston (14) is connected with a connecting rod (15) which is arranged, and the other end of the connecting rod (15) penetrates through the sealing cover (2) to be movably connected with a floating ball (1);

the upper cavity (5) and the lower cavity (13) are connected and communicated through a through hole (12) which is formed in the upper cavity, and hydraulic medium is filled between the upper cavity (5) and the lower cavity (13).

2. A float valve in accordance with claim 1, wherein: one end of the water inlet pipe (7) extends to the interior of the upper cavity (5), and the other end of the water inlet pipe (7) is connected with a municipal water supply pipeline.

3. A float valve in accordance with claim 1 or 2, wherein: the water outlet end face of the water inlet pipe (7) is located below the water outlet (8).

4. A float valve in accordance with claim 1, wherein: first casing (6) with be equipped with annular (4) on second casing (3), annular (4) are located the terminal surface of first casing (6) and second casing (3) junction, and be equipped with O shape sealing washer in annular (4).

5. A float valve in accordance with claim 1, wherein: the upper end face of the first piston (10) is provided with a bulge (9) used for sealing the water inlet pipe (7).