Novel high-pressure safety overflow valve

Abstract

The novel high-pressure safety overflow valve comprises a first valve body, a valve element, a second valve body and an adjusting lead screw, the second valve body is connected to the top end of the first valve body in a sleeved mode, the valve element is arranged in the first valve body, the adjusting lead screw is connected to the middle of the top end of the second valve body in an inserted mode, and a liquid inlet is formed in the bottom end in the first valve body. A liquid outlet is formed in the top of one side of the first valve body, and the filter assembly communicates with a liquid inlet in the bottom end of the first valve body. According to the overflow valve, firstly, liquid entering the overflow valve is filtered through the first filter screen, blockage in the valve body is avoided, normal use of the overflow valve is guaranteed, secondly, the adjusting screw rod is operated to enable the second filter screen to move to the position of the first filter screen, the first filter screen moves to the right side of the mounting box, impurities on the surface of the first filter screen are cleaned, and the overflow valve is convenient to use. The second filter screen continues to play a role in filtering, the two filter screens alternately play a role in filtering and cleaning operation, normal work of the valve body is not affected, and the filtering process is not affected either.

Description

Technical Field

[0001] The utility model relates to the technical field of overflow valves, in particular to a novel high-pressure safety overflow valve. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters of the conveying medium. Valves have functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow pressure relief. Safety relief valves are safety devices used in the system to discharge pressure that exceeds the specified value to ensure that the system does not cause accidents due to excessive pressure. They are widely used in urban construction, chemical industry, metallurgy, petroleum and other fields.

[0003] The existing patent with application number 202122453164.8 discloses, "A high-pressure safety relief valve, comprising a first valve body, a second valve body is sleeved on the top end of the first valve body, an oil inlet is arranged at the bottom end of the inside of the first valve body, a valve core is arranged inside the first valve body, the bottom end of the first valve body is fixedly connected to a valve seat, mounting holes are evenly arranged inside the valve seat, a valve cap is fixedly connected to the top end of the second valve body, an adjusting screw is inserted at the middle position of the top end of the second valve body, a wear-resistant coating is arranged inside the first valve body, an oil outlet is arranged at the top of one side of the first valve body, and a connecting sleeve is fixedly connected to one side of the oil outlet." However, the aforementioned relief valve is prone to internal blockage when used for a long time, and cannot meet the user's usage needs. Utility Model Content

[0004] The purpose of the utility model is to provide a novel high-pressure safety relief valve in order to solve the technical problems mentioned in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel high-pressure safety relief valve comprises a first valve body, a valve core, a second valve body and an adjusting screw rod, wherein the second valve body is sleeved on the top end of the first valve body, the valve core is arranged inside the first valve body, the adjusting screw rod is inserted in the middle of the top end of the second valve body, a liquid inlet is arranged at the bottom end of the first valve body, a liquid outlet is arranged at the top of one side of the first valve body, and a filter assembly is also included, and the filter assembly is connected with the liquid inlet at the bottom end of the first valve body;

[0007] The filter assembly includes an installation box, an adjusting screw and a mounting plate. The mounting plate is slidably arranged inside the installation box, the outer wall of the mounting plate contacts the inner wall of the installation box, one end of the adjusting screw is rotatably connected to the mounting plate, and the other end of the adjusting screw is connected to the installation box by a thread. The mounting plate is provided with two filter areas, and the filtering function is realized when a single filter area is connected to the liquid inlet.

[0008] As a further description of the above technical solution:

[0009] The mounting plate is provided with two through slots, in which a first filter screen and a second filter screen are installed respectively, and the through slots and the filter screens are combined to form a filtering area.

[0010] As a further description of the above technical solution:

[0011] The outer walls on both sides of the installation plate and the upper and lower surfaces are all embedded with sealing strips that are interference-fitted with the inner wall of the installation box.

[0012] As a further description of the above technical solution:

[0013] A cavity is arranged between the upper and lower surfaces of the top of the installation box, the top of the cavity is connected with a connecting pipe, and the bottom of the cavity is provided with a plurality of diversion holes.

[0014] As a further description of the above technical solution:

[0015] An inverted trapezoidal drain groove is arranged at the bottom of the installation box, brackets are fixedly connected to the two sides of the bottom of the drain groove, and a dust collecting groove is slidably connected between the brackets on the two sides.

[0016] As a further description of the above technical solution:

[0017] The top end of the valve core is movably connected with a first balancing block, the bottom end of the adjusting screw rod is embedded with a second balancing block, and a compression spring is sleeved between the first balancing block and the second balancing block.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, firstly, the first filter screen filters the liquid entering the overflow valve to avoid blockage inside the valve body and ensure the normal use of the overflow valve. Secondly, the adjusting screw is operated to rotate. According to the principle of thread transmission, the mounting plate is pulled to the right, so that the second filter screen moves to the position of the first filter screen. The first filter screen moves to the right side of the installation box, and the impurities on the surface of the first filter screen are cleaned. The second filter screen continues to play a filtering role. The two groups of filter screens alternately filter and clean, which does not affect the normal operation of the valve body or the filtering process.

[0020] 2. In the utility model, when cleaning the filter screen with impurities attached, such as the second filter screen located on the left side of the installation box or the first filter screen located on the right side of the installation box, a water gun is connected to the connecting pipe to flush the filter screen, and the impurities attached to the bottom of the filter screen are flushed into the dust collecting tank. The water gun is removed, the dust collecting tank is removed, and the impurities in the dust collecting tank are cleaned to complete the filter screen cleaning, thereby ensuring that the filter screen continues to play a good filtering role in subsequent work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional schematic diagram of a novel high-pressure safety relief valve provided according to an embodiment of the utility model is shown;

[0022] Figure 2 A schematic structural diagram of a filter assembly of a novel high-pressure safety relief valve provided according to an embodiment of the utility model is shown;

[0023] Figure 3 A schematic structural diagram of a mounting plate of a novel high-pressure safety relief valve provided according to an embodiment of the utility model is shown;

[0024] Figure 4 A first partial cross-sectional schematic diagram of a novel high-pressure safety relief valve provided according to an embodiment of the utility model is shown;

[0025] Figure 5 A second partial cross-sectional schematic diagram of a new high-pressure safety relief valve provided according to an embodiment of the utility model is shown.

[0026] Legend:

[0027] 1. First valve body; 101. Liquid inlet; 102. Liquid outlet; 2. Valve core; 3. First balance block; 4. Second valve body; 5. Compression spring; 6. Second balance block; 7. Adjusting screw; 8. Filter assembly; 81. Installation box; 8101. Cavity; 8102. Diverter hole; 8103. Leakage groove; 811. Connecting pipe; 82. Adjusting screw; 83. Dust collecting groove; 84. Bracket; 85. Installation plate; 86. Sealing strip; 871. First filter screen; 872. Second filter screen. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] See also Figure 1-5 The utility model provides a technical solution: a new type of high-pressure safety relief valve, including a first valve body 1, a valve core 2, a second valve body 4 and an adjusting screw 7, the second valve body 4 is sleeved on the top of the first valve body 1, the valve core 2 is arranged inside the first valve body 1, the adjusting screw 7 is inserted in the middle of the top of the second valve body 4, the bottom end of the first valve body 1 is provided with a liquid inlet 101, and the top of one side of the first valve body 1 is provided with a liquid outlet 102;

[0030] The top of the valve core 2 is movably connected with a first balancing block 3, the bottom of the adjusting screw rod 7 is embedded with a second balancing block 6, and a compression spring 5 is sleeved between the first balancing block 3 and the second balancing block 6;

[0031] It also includes a filter assembly 8, which is connected to the liquid inlet 101 at the bottom end of the first valve body 1. The filter assembly 8 includes a mounting box 81, an adjusting screw 82 and a mounting plate 85. The mounting plate 85 is slidably arranged inside the mounting box 81, and the outer wall of the mounting plate 85 contacts the inner wall of the mounting box 81. One end of the adjusting screw 82 is rotatably connected to the mounting plate 85, and the other end of the adjusting screw 82 is connected to the mounting box 81 through a thread. The mounting plate 85 is provided with two filter areas, and two through grooves are provided on the mounting plate 85. The first filter screen 871 and the second filter screen 872 are respectively installed in the two through grooves. The through grooves and the filter screens form a filter area, and a single filter area realizes a filtering function when it is connected to the liquid inlet 101. First, the first filter screen 871 filters the liquid entering the overflow valve to avoid blockage inside the valve body and ensure the normal use of the overflow valve. Secondly, operate the adjusting screw 82 to rotate, and according to the principle of thread transmission, pull the mounting plate 85 to the right, so that the second filter 872 moves to the position of the first filter 871, and the first filter 871 moves to the right side of the mounting box 81, and the impurities on the surface of the first filter 871 are cleaned, and the second filter 872 continues to play a filtering role. The two sets of filters alternately filter and clean, which does not affect the normal operation of the valve body or the filtering process.

[0032] Specifically, Figure 3 and Figure 4 As shown, the outer walls on both sides and the upper and lower surfaces of the installation plate 85 are embedded with sealing strips 86 that are interference fit with the inner wall of the installation box 81 to ensure that liquid does not overflow into the installation box 81.

[0033] Specifically, Figure 4 and Figure 5 As shown, a cavity 8101 is provided between the upper and lower surfaces of the top of the installation box 81, a connecting pipe 811 is connected to the top of the cavity 8101, a plurality of diversion holes 8102 are provided at the bottom of the cavity 8101, an inverted trapezoidal drain 8103 is provided at the bottom of the installation box 81, brackets 84 are fixedly connected to the two sides of the bottom of the drain 8103, and a dust collecting trough 83 is slidably connected between the brackets 84 on both sides. When cleaning the filter screen with impurities attached, such as the second filter screen 872 located on the left side of the installation box 81 or the first filter screen 871 located on the right side of the installation box 81, a water gun is connected to the connecting pipe 811 to flush the filter screen, and the impurities attached to the bottom of the filter screen are flushed into the dust collecting trough 83, the water gun is removed, the dust collecting trough 83 is removed, and the impurities in the dust collecting trough 83 are cleaned, and the filter screen is cleaned to ensure that the filter screen continues to play a good filtering role in subsequent work.

[0034] Working principle: When in use, first, the first filter screen 871 filters the liquid entering the overflow valve to avoid blockage inside the valve body and ensure the normal use of the overflow valve. Secondly, operate the adjusting screw 82 to rotate. According to the principle of threaded transmission, pull the mounting plate 85 to move to the right, so that the second filter screen 872 moves to the position of the first filter screen 871. The first filter screen 871 moves to the right side of the mounting box 81, and the second filter screen 872 continues to play a filtering role. After that, connect the cleaning water gun to the connecting pipe 811 on the right side of the mounting box 81 to rinse the first filter screen 871. The impurities attached to the bottom of the first filter screen 871 are washed into the dust collecting tank 83. Remove the water gun, remove the dust collecting tank 83, clean the impurities in the dust collecting tank 83, complete the filter cleaning, and ensure that the filter continues to play a good filtering role in subsequent work. The two sets of filters alternately filter and clean, which does not affect the normal operation of the valve body or the filtering process.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel high-pressure safety relief valve, comprising a first valve body (1), a valve core (2), a second valve body (4) and an adjusting screw (7), wherein the second valve body (4) is sleeved on the top of the first valve body (1), the valve core (2) is arranged inside the first valve body (1), the adjusting screw (7) is inserted into the middle of the top of the second valve body (4), a liquid inlet (101) is arranged at the bottom of the first valve body (1), and a liquid outlet (102) is arranged at the top of one side of the first valve body (1), characterized in that: It also includes a filter assembly (8), the filter assembly (8) is connected to the liquid inlet (101) at the bottom end of the first valve body (1); The filter assembly (8) comprises a mounting box (81), an adjusting screw (82) and a mounting plate (85); the mounting plate (85) is slidably arranged inside the mounting box (81); the outer wall of the mounting plate (85) contacts the inner wall of the mounting box (81); one end of the adjusting screw (82) is rotatably connected to the mounting plate (85); the other end of the adjusting screw (82) is connected to the mounting box (81) via a thread; the mounting plate (85) is provided with two filter areas; a filter function is realized when a single filter area is connected to the liquid inlet (101).

2. The new high-pressure safety relief valve according to claim 1 is characterized in that: The mounting plate (85) is provided with two through slots, in which a first filter screen (871) and a second filter screen (872) are respectively installed, and the through slots and the filter screens are combined to form a filtering area.

3. The new high-pressure safety relief valve according to claim 2 is characterized in that: The outer walls on both sides and the upper and lower surfaces of the installation plate (85) are embedded with sealing strips (86) that are interference-fitted with the inner wall of the installation box (81).

4. The new high-pressure safety relief valve according to claim 3 is characterized in that: A cavity (8101) is provided between the upper and lower surfaces of the top of the installation box (81), the top of the cavity (8101) is connected to a connecting pipe (811), and the bottom of the cavity (8101) is provided with a plurality of diversion holes (8102).

5. The new high-pressure safety relief valve according to claim 4 is characterized in that: The bottom of the installation box (81) is provided with an inverted trapezoidal drain groove (8103), the two sides of the bottom of the drain groove (8103) are fixedly connected with brackets (84), and a dust collecting groove (83) is slidably connected between the brackets (84) on both sides.

6. The new high-pressure safety relief valve according to claim 1 is characterized in that: The top end of the valve core (2) is movably connected to a first balancing block (3), the bottom end of the adjusting screw rod (7) is embedded with a second balancing block (6), and a compression spring (5) is sleeved between the first balancing block (3) and the second balancing block (6).

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