Pressure reducing valve convenient to adjust

Abstract

The utility model relates to the technical field of pressure reducing valves, and particularly discloses a pressure reducing valve convenient to adjust, which comprises a pressure reducing valve body, a filter component and an adjusting component, the filter component is used for collecting impurities in liquid flowing to the pressure reducing valve body and is fixedly connected onto the pressure reducing valve body, and the adjusting component is fixedly connected onto the pressure reducing valve body. The adjusting assembly is used for adjusting the flow of liquid in the pressure reducing valve body, the adjusting assembly is fixedly connected to the pressure reducing valve body, the liquid flows into the filtering shell through the transverse pipe and is arranged in the filtering shell through the semi-closed filtering cylinder to be communicated with the transverse pipe, and the liquid guided into the transverse pipe is filtered in the semi-closed filtering cylinder; impurities are retained in the semi-closed filter cartridge, and through the detachable design of the connecting pin, the semi-closed filter cartridge can be regularly detached and cleaned in a pipeline under the condition that the valve is closed, so that the semi-closed filter cartridge is prevented from being blocked, the filtering effect is ensured, and the cleaning time of the filter shell is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve which is easy to adjust. Background Art

[0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through regulation, and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. From the perspective of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of reducing pressure. Then, by relying on the regulation of the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve remains constant within a certain error range.

[0003] Among them, the pressure reducing valve can be divided into diaphragm type, spring diaphragm type, piston type, lever type and bellows type according to the structural form; it can be single-seat type and double-seat type according to the number of valve seats. The existing pressure reducing valve works as follows: the pressure reducing valve adjusts the flow of the medium by controlling the opening of the opening and closing parts in the valve body to reduce the pressure of the medium, and at the same time adjusts the opening of the opening and closing parts with the help of the pressure behind the valve to keep the pressure behind the valve within a certain range. In order to prevent impurities from entering the pressure reducing valve and damaging the internal components of the pressure reducing valve, a filter assembly is often installed at the water inlet end of the pressure reducing valve. The filter assembly blocks impurities, and the impurities are retained in the pipeline and are not easy to clean, and the impurities are easy to clog the filter holes of the filter assembly.

[0004] To this end, we propose a pressure reducing valve that is easy to adjust. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure reducing valve which is easy to adjust, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure reducing valve that is easy to adjust, comprising a pressure reducing valve body, a filter assembly, the filter assembly is used to collect impurities in the liquid flowing into the pressure reducing valve body, the filter assembly is fixedly connected to the pressure reducing valve body, an adjustment assembly, the adjustment assembly is used to adjust the flow rate of the liquid in the pressure reducing valve body, the adjustment assembly is fixedly connected to the pressure reducing valve body, the filter assembly comprises a water inlet pipe, the water inlet pipe and the pressure reducing valve body are fixedly connected, a filter shell is installed on the water inlet pipe, an end cover is arranged on the filter shell, a connecting pin is sleeved in the end cover, the connecting pin and the filter shell are connected to the filter shell, and the filter shell is connected to the filter shell. A threaded connection, a support rod is fixedly connected in the end cover, a semi-closed filter cartridge is fixedly connected on the support rod, a cross pipe is fixedly connected on the filter shell, a valve is installed in the cross pipe, the adjusting assembly includes a top cover, the top cover is sleeved and connected to the pressure reducing valve body, a positioning pin is sleeved in the top cover, the positioning pin is threadedly connected to the pressure reducing valve body, a cylinder is fixedly connected in the top cover, a screw is threadedly connected in the cylinder, a turntable is fixedly connected on the screw, a push rod is sleeved in the cylinder, an elastic member is sleeved on the push rod, the elastic member is sleeved and connected to the cylinder, and a sealing plug is fixedly connected to the push rod.

[0007] Preferably, the semi-enclosed filter cartridge and the transverse tube are located on the same horizontal line.

[0008] Preferably, the pressure reducing valve body is fixedly connected with a water outlet pipe.

[0009] Preferably, the positioning pins are distributed in a ring shape along the top cover.

[0010] Preferably, the bottom of the sealing plug is processed into a hemispherical shape.

[0011] Preferably, the cylinder is fixedly connected with an overflow port.

[0012] The utility model has at least the following beneficial effects:

[0013] 1. First, the liquid flows into the filter housing through the horizontal pipe, and then after being filtered by the semi-enclosed filter cartridge, the liquid flows into the pressure reducing valve body through the water inlet pipe, the connecting pin and the end cover are rotated to separate, and then the end cover is removed from the filter housing, and the support rod drives the semi-enclosed filter cartridge to be separated from the filter housing, and then the semi-enclosed filter cartridge can be cleaned.

[0014] The semi-enclosed filter cartridge is placed in the filter housing and connected to the cross tube. The liquid introduced in the cross tube is filtered in the semi-enclosed filter cartridge, and impurities are retained inside the semi-enclosed filter cartridge. The detachable design of the connecting pin allows the semi-enclosed filter cartridge to be regularly disassembled and cleaned in the pipeline when the valve is closed to prevent blockage of the semi-enclosed filter cartridge, ensure filtering effect, and reduce cleaning time of the filter housing.

[0015] 2. When the flow rate of the liquid in the pressure reducing valve body needs to be adjusted, the screw is driven to rotate in the cylinder through the turntable, and the screw pushes the push rod downward to compress the elastic part. The push rod drives the sealing plug to close the water inlet pipe and stop the water flow from entering the pressure reducing valve body. When the screw moves upward, the sealing plug is reset under the action of the elastic part to realize the circulation of liquid in the pressure reducing valve body.

[0016] Through the detachable design between the positioning pin and the pressure reducing valve body, the top cover can be removed from the pressure reducing valve body, which is convenient for cleaning the inside of the pressure reducing valve body. The use of the screw makes it easy to adjust the position of the sealing plug in the pressure reducing valve body, thereby realizing the opening and closing of the pressure reducing valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the top cover, the positioning pin and the cylinder in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the cylinder, screw and push rod in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the filter housing, the cross pipe and the valve in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the semi-enclosed filter cartridge, support rod and end cover in the utility model.

[0022] In the figure: 1. Filter assembly; 2. Adjustment assembly; 3. Pressure reducing valve body; 4. Water inlet pipe; 5. Filter shell; 6. End cover; 7. Connecting pin; 8. Support rod; 9. Semi-enclosed filter cartridge; 10. Cross pipe; 11. Valve; 12. Water outlet pipe; 13. Top cover; 14. Positioning pin; 15. Cylinder; 16. Screw; 17. Turntable; 18. Push rod; 19. Elastic part; 20. Sealing plug, 21. Overflow port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 5The utility model provides a technical solution for an easily adjustable pressure reducing valve: an easily adjustable pressure reducing valve, comprising a pressure reducing valve body 3, a filter assembly 1, the filter assembly 1 is used to collect impurities in the liquid flowing into the pressure reducing valve body 3, the filter assembly 1 is fixedly connected to the pressure reducing valve body 3, and an adjusting assembly 2, the adjusting assembly 2 is used to adjust the flow rate of the liquid in the pressure reducing valve body 3, and the adjusting assembly 2 is fixedly connected to the pressure reducing valve body 3.

[0026] The filter assembly 1 includes a water inlet pipe 4, which is fixedly connected to the pressure reducing valve body 3, a filter shell 5 is installed on the water inlet pipe 4, and an end cover 6 is provided on the filter shell 5. A connecting pin 7 is sleeved in the end cover 6, and the connecting pin 7 is threadedly connected to the filter shell 5. A support rod 8 is fixedly connected to the end cover 6, and a semi-enclosed filter cartridge 9 is fixedly connected to the support rod 8. A cross pipe 10 is fixedly connected to the filter shell 5, and a valve 11 is installed in the cross pipe 10. The water inlet pipe 4 and the filter shell 5 are connected by bolts, and the liquid flows into the filter shell 5 through the cross pipe 10. After being filtered by the semi-enclosed filter cartridge 9, the liquid flows into the filter shell 5 through the water inlet pipe. 4 flows into the pressure reducing valve body 3, the connecting pin 7 is rotated to separate the end cover 6, and then the end cover 6 is removed from the filter shell 5. The end cover 6 drives the semi-enclosed filter cartridge 9 to be separated from the filter shell 5 through the support rod 8, and then the semi-enclosed filter cartridge 9 can be cleaned. In this embodiment, the semi-enclosed filter cartridge 9 is placed in the filter shell 5 and connected with the cross pipe 10. The liquid introduced into the cross pipe 10 is filtered in the semi-enclosed filter cartridge 9, and impurities are retained in the semi-enclosed filter cartridge 9. Through the detachable design of the connecting pin 7, the semi-enclosed filter cartridge 9 can be disassembled and cleaned when the valve 11 is closed.

[0027] The semi-enclosed filter cartridge 9 and the transverse tube 10 are located on the same horizontal line. The arrangement of the semi-enclosed filter cartridge 9 and the transverse tube 10 ensures that the liquid in the transverse tube 10 directly enters the semi-enclosed filter cartridge 9, thereby filtering impurities in the liquid.

[0028] The pressure reducing valve body 3 is fixedly connected with a water outlet pipe 12 , and the water outlet pipe 12 and the water inlet pipe 4 are arranged alternately.

[0029] Embodiment 2

[0030] The regulating assembly 2 includes a top cover 13, the top cover 13 and the pressure reducing valve body 3 are sleeved and connected, a positioning pin 14 is sleeved in the top cover 13, the positioning pin 14 and the pressure reducing valve body 3 are threadedly connected, a cylinder 15 is fixedly connected in the top cover 13, a screw 16 is threadedly connected in the cylinder 15, a turntable 17 is fixedly connected to the screw 16, a push rod 18 is sleeved in the cylinder 15, an elastic member 19 is sleeved on the push rod 18, the elastic member 19 and the cylinder 15 are sleeved and connected, and a sealing plug 20 is fixedly connected to the push rod 18. According to the above embodiment, when it is necessary to adjust the flow rate of the liquid in the pressure reducing valve body 3, the turntable 17 is used to adjust the flow rate of the liquid in the pressure reducing valve body 3. The screw 16 is driven to rotate in the cylinder 15, and the screw 16 pushes the push rod 18 to move downward, and the push rod 18 compresses the elastic member 19. At the same time, the push rod 18 drives the sealing plug 20 to close the water inlet pipe 4, stopping the water flow from entering the pressure reducing valve body 3. When the screw 16 moves upward, the sealing plug 20 is reset under the action of the elastic member 19. Through the detachable design between the locating pin 14 and the pressure reducing valve body 3, the top cover 13 can be removed from the pressure reducing valve body 3, which is beneficial to cleaning the interior of the pressure reducing valve body 3. The use of the screw 16 facilitates the adjustment of the position of the sealing plug 20 in the pressure reducing valve body 3.

[0031] The positioning pins 14 are distributed in a ring shape along the top cover 13 . The arrangement of four positioning pins 14 ensures the connection strength between the top cover 13 and the pressure reducing valve body 3 .

[0032] The bottom of the sealing plug 20 is processed into a hemispherical shape. The hemispherical design of the sealing plug 20 can buffer the impact force of the water flow entering the pressure reducing valve body 3, and facilitate the sealing plug 20 and the bottom of the pressure reducing valve body 3 to match, thereby blocking the water flow.

[0033] The cylinder 15 is fixedly connected with an overflow port 21 , which is connected to an external overflow pipe to prevent water from seeping into the entire pressure reducing valve body 3 .

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure reducing valve that is easy to adjust, comprising a pressure reducing valve body (3), characterized in that: A filter assembly (1), the filter assembly (1) being used to collect impurities in the liquid flowing toward the pressure reducing valve body (3), the filter assembly (1) being fixedly connected to the pressure reducing valve body (3); An adjusting component (2), the adjusting component (2) being used to adjust the flow rate of the liquid in the pressure reducing valve body (3), the adjusting component (2) being fixedly connected to the pressure reducing valve body (3); The filter assembly (1) comprises a water inlet pipe (4), the water inlet pipe (4) and the pressure reducing valve body (3) are fixedly connected, a filter shell (5) is installed on the water inlet pipe (4), an end cover (6) is provided on the filter shell (5), a connecting pin (7) is sleeved in the end cover (6), the connecting pin (7) and the filter shell (5) are threadedly connected, a support rod (8) is fixedly connected in the end cover (6), a semi-enclosed filter cartridge (9) is fixedly connected to the support rod (8), a transverse pipe (10) is fixedly connected to the filter shell (5), and a valve (11) is installed in the transverse pipe (10); The regulating assembly (2) comprises a top cover (13), the top cover (13) and the pressure reducing valve body (3) are sleeved and connected, a positioning pin (14) is sleeved in the top cover (13), the positioning pin (14) and the pressure reducing valve body (3) are threadedly connected, a cylinder (15) is fixedly connected in the top cover (13), a screw rod (16) is threadedly connected in the cylinder (15), a rotating disk (17) is fixedly connected to the screw rod (16), a push rod (18) is sleeved in the cylinder (15), an elastic member (19) is sleeved on the push rod (18), the elastic member (19) and the cylinder (15) are sleeved and connected, and a sealing plug (20) is fixedly connected to the push rod (18).

2. The easily adjustable pressure reducing valve according to claim 1, characterized in that: The semi-enclosed filter cartridge (9) and the transverse tube (10) are located on the same horizontal line.

3. The easily adjustable pressure reducing valve according to claim 1, characterized in that: The pressure reducing valve body (3) is fixedly connected to a water outlet pipe (12).

4. The easily adjustable pressure reducing valve according to claim 1, characterized in that: The positioning pins (14) are distributed in a ring shape along the top cover (13).

5. The easily adjustable pressure reducing valve according to claim 1, characterized in that: The bottom of the sealing plug (20) is processed into a hemispherical shape.

6. The easily adjustable pressure reducing valve according to claim 1, characterized in that: The cylinder (15) is fixedly connected with an overflow port (21).

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