Valve element structure

Abstract

The utility model discloses a valve core structure which comprises a valve body, a valve core movably connected in the valve body, a valve rod movably connected on the top surface of the valve core, a valve cover rotatably sleeved on the outer edge of the valve rod, a valve cover fixed with the top surface of the valve body through a bolt, the valve core comprises a sleeve shell rotatably connected in the valve body, and a water hole horizontally penetrating through the side surface of the sleeve shell. Two semi-cylinders which are symmetrical in the radial direction are movably connected into the sleeve shell, the opposite faces of the two semi-cylinders are each horizontally provided with a semi-circular groove, a filter element is jointly connected into the two semi-circular grooves, and the two semi-cylinders are both movably connected to the bottom face of the valve rod. The valve element composed of the sleeve shell and the semi-cylinders is arranged in the valve body, the filter element is clamped in the semi-circular grooves in the two semi-cylinders through the positioning groove and the positioning block, and the two semi-cylinders are movably connected with the valve rod, so that the filter element in the valve element can be conveniently detached and replaced; and the filter element in the valve element is more convenient and quicker to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to a valve core structure. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard custom valves, etc. The valve core is a valve part that the valve body uses its movement to achieve the basic functions of direction control, pressure control or flow control.

[0003] During the use of the existing valve core, in order to filter some solid impurities in the water body, a filter element is usually set in the water hole in the valve core to filter the impurities in the water body. However, a large amount of impurities will accumulate in the valve body after long-term use. Such impurities will clog the filter element and need to be replaced. However, the filter element in the existing valve core is not easy for users to disassemble and replace. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a valve core structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve core structure, including a valve body, a valve core movably connected in the valve body, the top surface of the valve core movably connected to the valve stem, the outer edge of the valve stem rotatably sleeved on the valve cover, the valve cover is fixed to the top surface of the valve body by bolts, the valve core includes a sleeve rotatably connected in the valve body, the side of the sleeve has a water hole horizontally penetrated, two radially symmetrical semi-cylinders movably connected in the sleeve, a semi-circular groove is horizontally opened on the opposite surfaces of the two semi-cylinders, a filter element is commonly connected in the two semi-circular grooves, and the two semi-cylinders are movably connected to the bottom surface of the valve stem.

[0006] As a further description of the above technical solution: a groove is vertically opened on the bottom surface of the valve body, a rotating shaft is rotatably connected in the groove, the rotating shaft is concentrically fixed to the bottom surface of the shell, a limit groove is vertically opened at the center of the bottom surface of the shell, two fitting limit blocks are inserted in the limit groove, and one limit block is fixed at the center of the bottom surface of each semi-cylinder.

[0007] As a further description of the above technical solution: four equally spaced blind holes are radially opened on the vertical surface of one of the semi-cylinders, and a guide rod is axially slidably connected in each of the blind holes, and each of the guide rods is horizontally fixed on the vertical surface of another semi-cylinder.

[0008] As a further description of the above technical solution: two radially symmetrical sliding grooves are axially opened in each blind hole, a slider is slidably connected in each sliding groove, a guide rod is commonly fixed between the two sliders, and a spring is commonly horizontally fixed between each sliding groove and the slider.

[0009] As a further description of the above technical solution: a guide groove is radially opened on the bottom surface of the valve stem, and two radially symmetrical guide blocks are slidably connected in the guide groove. One guide block is fixed on the top surface of each semi-cylinder, and the guide block and the guide groove are dovetail blocks and dovetail grooves respectively.

[0010] As a further description of the above technical solution: the inner walls of the two semicircular grooves are axially opened with a plurality of equidistant axially distributed positioning grooves, each of the positioning grooves is axially inserted with a positioning block, and each positioning block is radially fixed to the filter element.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, the valve core structure, by arranging a valve core composed of a sleeve and a semi-cylinder in the valve body, and clamping the filter element in the semi-circular grooves in the two semi-cylinders through positioning grooves and positioning blocks, and movably connecting the two semi-cylinders to the valve stem, can facilitate the disassembly and replacement of the filter element in the valve core, making the disassembly and assembly of the filter element in the valve core more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of a valve core structure proposed by the utility model;

[0014] Figure 2 This is a main cross-sectional view of the overall structure of a valve core structure proposed by the utility model;

[0015] Figure 3 It is a side sectional view of the overall structure of a valve core structure proposed by the utility model;

[0016] Figure 4 A three-dimensional diagram of the connection between a sleeve shell and a semi-cylinder of a valve core structure proposed by the utility model;

[0017] Figure 5 A three-dimensional diagram of the connection between a semi-cylinder and a filter element of a valve core structure proposed by the utility model;

[0018] Figure 6A three-dimensional diagram of the overall structure of a casing of a valve core structure proposed by the utility model;

[0019] Figure 7 A valve core structure proposed by the utility model Figure 3 A magnified view of the structure at center.

[0020] Legend:

[0021] 1. Valve body; 2. Valve cover; 3. Valve stem; 4. Guide groove; 5. Guide block; 6. Semi-cylinder; 7. Housing; 8. Water hole; 9. Filter element; 10. Limit groove; 11. Limit block; 12. Semi-circular groove; 13. Positioning groove; 14. Positioning block; 15. Slide groove; 16. Spring; 17. Guide rod; 18. Blind hole; 19. Slider. DETAILED DESCRIPTION

[0022] 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.

[0023] Reference Figures 1 to 7 The utility model provides a valve core structure: including a valve body 1, a valve core movably connected inside the valve body 1, a valve stem 3 movably connected to the top surface of the valve core, a valve cover 2 rotatably sleeved on the outer edge of the valve stem 3, the valve cover 2 is fixed to the top surface of the valve body 1 by bolts, the valve core includes a sleeve 7 rotatably connected to the valve body 1, a groove is vertically provided on the bottom surface of the valve body 1, a rotating shaft is rotatably connected inside the groove, the rotating shaft is concentrically fixed to the bottom surface of the sleeve 7, a water hole 8 is horizontally penetrated through the side surface of the sleeve 7, two radially symmetrical semi-cylinders 6 are movably connected inside the sleeve 7, and a limiting groove 1 is vertically provided at the center of the bottom surface of the sleeve 7 0, two matching limit blocks 11 are inserted into the limit groove 10, a limit block 11 is fixed at the center of the bottom surface of each semi-cylinder 6, a semi-circular groove 12 is horizontally opened on the opposite surfaces of the two semi-cylinders 6, a filter element 9 is connected to the two semi-circular grooves 12, the two semi-circular grooves 12 are connected to each other, the two semi-cylinders 6 are movably connected to the bottom surface of the valve stem 3, a guide groove 4 is radially opened on the bottom surface of the valve stem 3, two radially symmetrical guide blocks 5 are slidably connected in the guide groove 4, a guide block 5 is fixed on the top surface of each semi-cylinder 6, and the guide block 5 and the guide groove 4 are dovetail blocks and dovetail grooves respectively;

[0024] Four equally spaced blind holes 18 are radially provided on the vertical surface of one of the semi-cylinders 6, and a guide rod 17 is axially slidably connected in each blind hole 18, and each guide rod 17 is horizontally fixed on the vertical surface of the other semi-cylinder 6. Two radially symmetrical slide grooves 15 are axially provided in each blind hole 18, and a slider 19 is slidably connected in each slide groove 15, and a guide rod 17 is commonly fixed between the two sliders 19, and a spring 16 is commonly horizontally fixed between each slide groove 15 and the slider 19; a plurality of equally spaced axially distributed positioning grooves 13 are axially provided on the inner walls of the two semi-circular grooves 12, and a positioning block 14 is axially inserted in each positioning groove 13, and each positioning block 14 is radially fixed to the filter element 9.

[0025] By arranging a valve core composed of a sleeve 7 and a semi-cylinder 6 in the valve body 1, and clamping the filter element 9 in the semi-circular grooves 12 in the two semi-cylinders 6 through the positioning grooves 13 and the positioning blocks 14, and movably connecting the two semi-cylinders 6 to the valve stem 3, it is convenient to disassemble and replace the filter element 9 in the valve core, making the disassembly and assembly of the filter element 9 in the valve core more convenient and quick.

[0026] Working principle: When replacing the filter element 9, firstly, the valve stem 3 drives the semi-cylinder 6 to rotate, and the semi-cylinder 6 drives the casing 7 to rotate, so that the valve body 1 is in a closed state, that is, the water hole 8 and the semi-circular groove 12 are not on the same axis as the inlet and outlet of the valve body 1, and then remove the bolt, and then pull the valve stem 3 upward to make the valve stem 3 and the semi-cylinder 6 detach from the casing 7, and then pull the two semi-cylinders 6 outward to make the two semi-cylinders 6 move in the opposite direction, and the guide rod 17 moves out of the blind hole 18, and the spring 16 is compressed to make the positioning block 14 on the filter element 9 detach from the positioning groove 13 in the semi-circular groove 12, and then the filter element 9 can be directly removed, and then the new one can be replaced. The filter element 9 is placed horizontally between the two semicircular grooves 12, so that the positioning blocks 14 on both sides of the new filter element 9 are aligned with the positioning grooves 13 in the semicircular grooves 12 on both sides, and then the two semi-cylinders 6 are loosened. The spring 16 in the compressed state is reset at this time. The spring 16 drives the two semi-cylinders 6 to move relative to each other while resetting, so that the two semi-cylinders 6 are merged, and then the semi-cylinder 6 is put back into the casing 7. When assembling the semi-cylinder 6 with the casing 7, the limit block 11 on the bottom surface of the semi-cylinder 6 is aligned with the limit groove 10 on the inner wall of the casing 7 for installation. After installation to the bottom, the bolts are reinstalled on the valve cover 2, and the valve cover 2 is fixed on the valve body 1, thereby completing the disassembly and replacement of the filter element 9 in the valve core.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve core structure, comprising a valve body (1), wherein the valve core is movably connected inside the valve body (1), the top surface of the valve core is movably connected to a valve stem (3), the outer edge of the valve stem (3) is rotatably sleeved on a valve cover (2), and the valve cover (2) is fixed to the top surface of the valve body (1) by bolts, characterized in that: The valve core comprises a casing (7) rotatably connected to the valve body (1), a water hole (8) is horizontally penetrated through the side of the casing (7), two radially symmetrical semi-cylinders (6) are movably connected in the casing (7), a semi-circular groove (12) is horizontally opened on the opposite surfaces of the two semi-cylinders (6), a filter element (9) is commonly connected in the two semi-circular grooves (12), and the two semi-cylinders (6) are movably connected to the bottom surface of the valve stem (3).

2. A valve core structure according to claim 1, characterized in that: A groove is vertically formed on the bottom surface of the valve body (1), a rotating shaft is rotatably connected in the groove, and the rotating shaft is coaxially fixed to the bottom surface of the casing (7). A limiting groove (10) is vertically formed at the center of the bottom surface of the casing (7), and two matching limiting blocks (11) are inserted into the limiting groove (10). One limiting block (11) is fixed at the center of the bottom surface of each semi-cylinder (6).

3. A valve core structure according to claim 1, characterized in that: Four equally spaced blind holes (18) are radially opened on the vertical surface of one of the semi-cylinders (6), and a guide rod (17) is axially slidably connected in each of the blind holes (18), and each of the guide rods (17) is horizontally fixed on the vertical surface of the other semi-cylinder (6).

4. A valve core structure according to claim 3, characterized in that: Two radially symmetrical sliding grooves (15) are axially provided in each of the blind holes (18); a sliding block (19) is slidably connected in each of the sliding grooves (15); a guide rod (17) is commonly fixed between the two sliding blocks (19); and a spring (16) is commonly horizontally fixed between each of the sliding grooves (15) and the sliding block (19).

5. A valve core structure according to claim 1, characterized in that: A guide groove (4) is radially formed on the bottom surface of the valve stem (3), and two radially symmetrical guide blocks (5) are slidably connected in the guide groove (4). One guide block (5) is fixed on the top surface of each semi-cylinder (6), and the guide block (5) and the guide groove (4) are dovetail blocks and dovetail grooves, respectively.

6. A valve core structure according to claim 1, characterized in that: The inner walls of the two semicircular grooves (12) are axially provided with a plurality of equidistant axially distributed positioning grooves (13), each positioning groove (13) is axially inserted with a positioning block (14), and each positioning block (14) is radially fixed to the filter element (9).

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